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-rw-r--r--arch/parisc/kernel/cache.c221
-rw-r--r--arch/parisc/kernel/entry.S60
-rw-r--r--arch/parisc/kernel/hardware.c7
-rw-r--r--arch/parisc/kernel/inventory.c2
-rw-r--r--arch/parisc/kernel/irq.c10
-rw-r--r--arch/parisc/kernel/pacache.S335
-rw-r--r--arch/parisc/kernel/parisc_ksyms.c5
-rw-r--r--arch/parisc/kernel/pdc_cons.c10
-rw-r--r--arch/parisc/kernel/ptrace.c2
-rw-r--r--arch/parisc/kernel/signal.c25
-rw-r--r--arch/parisc/kernel/signal32.c142
-rw-r--r--arch/parisc/kernel/signal32.h23
-rw-r--r--arch/parisc/kernel/sys32.h12
-rw-r--r--arch/parisc/kernel/sys_parisc.c16
-rw-r--r--arch/parisc/kernel/sys_parisc32.c122
-rw-r--r--arch/parisc/kernel/syscall.S5
-rw-r--r--arch/parisc/kernel/syscall_table.S35
-rw-r--r--arch/parisc/kernel/traps.c2
18 files changed, 564 insertions, 470 deletions
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 48e16dc20102..4b12890642eb 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -267,9 +267,11 @@ static inline void
__flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
unsigned long physaddr)
{
+ preempt_disable();
flush_dcache_page_asm(physaddr, vmaddr);
if (vma->vm_flags & VM_EXEC)
flush_icache_page_asm(physaddr, vmaddr);
+ preempt_enable();
}
void flush_dcache_page(struct page *page)
@@ -329,17 +331,6 @@ EXPORT_SYMBOL(flush_kernel_dcache_page_asm);
EXPORT_SYMBOL(flush_data_cache_local);
EXPORT_SYMBOL(flush_kernel_icache_range_asm);
-void clear_user_page_asm(void *page, unsigned long vaddr)
-{
- unsigned long flags;
- /* This function is implemented in assembly in pacache.S */
- extern void __clear_user_page_asm(void *page, unsigned long vaddr);
-
- purge_tlb_start(flags);
- __clear_user_page_asm(page, vaddr);
- purge_tlb_end(flags);
-}
-
#define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
@@ -373,20 +364,9 @@ void __init parisc_setup_cache_timing(void)
printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
}
-extern void purge_kernel_dcache_page(unsigned long);
-extern void clear_user_page_asm(void *page, unsigned long vaddr);
-
-void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
-{
- unsigned long flags;
-
- purge_kernel_dcache_page((unsigned long)page);
- purge_tlb_start(flags);
- pdtlb_kernel(page);
- purge_tlb_end(flags);
- clear_user_page_asm(page, vaddr);
-}
-EXPORT_SYMBOL(clear_user_page);
+extern void purge_kernel_dcache_page_asm(unsigned long);
+extern void clear_user_page_asm(void *, unsigned long);
+extern void copy_user_page_asm(void *, void *, unsigned long);
void flush_kernel_dcache_page_addr(void *addr)
{
@@ -399,11 +379,26 @@ void flush_kernel_dcache_page_addr(void *addr)
}
EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
+void clear_user_page(void *vto, unsigned long vaddr, struct page *page)
+{
+ clear_page_asm(vto);
+ if (!parisc_requires_coherency())
+ flush_kernel_dcache_page_asm(vto);
+}
+EXPORT_SYMBOL(clear_user_page);
+
void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
- struct page *pg)
+ struct page *pg)
{
- /* no coherency needed (all in kmap/kunmap) */
- copy_user_page_asm(vto, vfrom);
+ /* Copy using kernel mapping. No coherency is needed
+ (all in kmap/kunmap) on machines that don't support
+ non-equivalent aliasing. However, the `from' page
+ needs to be flushed before it can be accessed through
+ the kernel mapping. */
+ preempt_disable();
+ flush_dcache_page_asm(__pa(vfrom), vaddr);
+ preempt_enable();
+ copy_page_asm(vto, vfrom);
if (!parisc_requires_coherency())
flush_kernel_dcache_page_asm(vto);
}
@@ -419,6 +414,24 @@ void kunmap_parisc(void *addr)
EXPORT_SYMBOL(kunmap_parisc);
#endif
+void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
+{
+ unsigned long flags;
+
+ /* Note: purge_tlb_entries can be called at startup with
+ no context. */
+
+ /* Disable preemption while we play with %sr1. */
+ preempt_disable();
+ mtsp(mm->context, 1);
+ purge_tlb_start(flags);
+ pdtlb(addr);
+ pitlb(addr);
+ purge_tlb_end(flags);
+ preempt_enable();
+}
+EXPORT_SYMBOL(purge_tlb_entries);
+
void __flush_tlb_range(unsigned long sid, unsigned long start,
unsigned long end)
{
@@ -458,8 +471,66 @@ void flush_cache_all(void)
on_each_cpu(cacheflush_h_tmp_function, NULL, 1);
}
+static inline unsigned long mm_total_size(struct mm_struct *mm)
+{
+ struct vm_area_struct *vma;
+ unsigned long usize = 0;
+
+ for (vma = mm->mmap; vma; vma = vma->vm_next)
+ usize += vma->vm_end - vma->vm_start;
+ return usize;
+}
+
+static inline pte_t *get_ptep(pgd_t *pgd, unsigned long addr)
+{
+ pte_t *ptep = NULL;
+
+ if (!pgd_none(*pgd)) {
+ pud_t *pud = pud_offset(pgd, addr);
+ if (!pud_none(*pud)) {
+ pmd_t *pmd = pmd_offset(pud, addr);
+ if (!pmd_none(*pmd))
+ ptep = pte_offset_map(pmd, addr);
+ }
+ }
+ return ptep;
+}
+
void flush_cache_mm(struct mm_struct *mm)
{
+ /* Flushing the whole cache on each cpu takes forever on
+ rp3440, etc. So, avoid it if the mm isn't too big. */
+ if (mm_total_size(mm) < parisc_cache_flush_threshold) {
+ struct vm_area_struct *vma;
+
+ if (mm->context == mfsp(3)) {
+ for (vma = mm->mmap; vma; vma = vma->vm_next) {
+ flush_user_dcache_range_asm(vma->vm_start,
+ vma->vm_end);
+ if (vma->vm_flags & VM_EXEC)
+ flush_user_icache_range_asm(
+ vma->vm_start, vma->vm_end);
+ }
+ } else {
+ pgd_t *pgd = mm->pgd;
+
+ for (vma = mm->mmap; vma; vma = vma->vm_next) {
+ unsigned long addr;
+
+ for (addr = vma->vm_start; addr < vma->vm_end;
+ addr += PAGE_SIZE) {
+ pte_t *ptep = get_ptep(pgd, addr);
+ if (ptep != NULL) {
+ pte_t pte = *ptep;
+ __flush_cache_page(vma, addr,
+ page_to_phys(pte_page(pte)));
+ }
+ }
+ }
+ }
+ return;
+ }
+
#ifdef CONFIG_SMP
flush_cache_all();
#else
@@ -485,20 +556,36 @@ flush_user_icache_range(unsigned long start, unsigned long end)
flush_instruction_cache();
}
-
void flush_cache_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
- int sr3;
-
BUG_ON(!vma->vm_mm->context);
- sr3 = mfsp(3);
- if (vma->vm_mm->context == sr3) {
- flush_user_dcache_range(start,end);
- flush_user_icache_range(start,end);
+ if ((end - start) < parisc_cache_flush_threshold) {
+ if (vma->vm_mm->context == mfsp(3)) {
+ flush_user_dcache_range_asm(start, end);
+ if (vma->vm_flags & VM_EXEC)
+ flush_user_icache_range_asm(start, end);
+ } else {
+ unsigned long addr;
+ pgd_t *pgd = vma->vm_mm->pgd;
+
+ for (addr = start & PAGE_MASK; addr < end;
+ addr += PAGE_SIZE) {
+ pte_t *ptep = get_ptep(pgd, addr);
+ if (ptep != NULL) {
+ pte_t pte = *ptep;
+ flush_cache_page(vma,
+ addr, pte_pfn(pte));
+ }
+ }
+ }
} else {
+#ifdef CONFIG_SMP
flush_cache_all();
+#else
+ flush_cache_all_local();
+#endif
}
}
@@ -511,3 +598,67 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
__flush_cache_page(vma, vmaddr, page_to_phys(pfn_to_page(pfn)));
}
+
+#ifdef CONFIG_PARISC_TMPALIAS
+
+void clear_user_highpage(struct page *page, unsigned long vaddr)
+{
+ void *vto;
+ unsigned long flags;
+
+ /* Clear using TMPALIAS region. The page doesn't need to
+ be flushed but the kernel mapping needs to be purged. */
+
+ vto = kmap_atomic(page, KM_USER0);
+
+ /* The PA-RISC 2.0 Architecture book states on page F-6:
+ "Before a write-capable translation is enabled, *all*
+ non-equivalently-aliased translations must be removed
+ from the page table and purged from the TLB. (Note
+ that the caches are not required to be flushed at this
+ time.) Before any non-equivalent aliased translation
+ is re-enabled, the virtual address range for the writeable
+ page (the entire page) must be flushed from the cache,
+ and the write-capable translation removed from the page
+ table and purged from the TLB." */
+
+ purge_kernel_dcache_page_asm((unsigned long)vto);
+ purge_tlb_start(flags);
+ pdtlb_kernel(vto);
+ purge_tlb_end(flags);
+ preempt_disable();
+ clear_user_page_asm(vto, vaddr);
+ preempt_enable();
+
+ pagefault_enable(); /* kunmap_atomic(addr, KM_USER0); */
+}
+
+void copy_user_highpage(struct page *to, struct page *from,
+ unsigned long vaddr, struct vm_area_struct *vma)
+{
+ void *vfrom, *vto;
+ unsigned long flags;
+
+ /* Copy using TMPALIAS region. This has the advantage
+ that the `from' page doesn't need to be flushed. However,
+ the `to' page must be flushed in copy_user_page_asm since
+ it can be used to bring in executable code. */
+
+ vfrom = kmap_atomic(from, KM_USER0);
+ vto = kmap_atomic(to, KM_USER1);
+
+ purge_kernel_dcache_page_asm((unsigned long)vto);
+ purge_tlb_start(flags);
+ pdtlb_kernel(vto);
+ pdtlb_kernel(vfrom);
+ purge_tlb_end(flags);
+ preempt_disable();
+ copy_user_page_asm(vto, vfrom, vaddr);
+ flush_dcache_page_asm(__pa(vto), vaddr);
+ preempt_enable();
+
+ pagefault_enable(); /* kunmap_atomic(addr, KM_USER1); */
+ pagefault_enable(); /* kunmap_atomic(addr, KM_USER0); */
+}
+
+#endif /* CONFIG_PARISC_TMPALIAS */
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index bfb44247d7a7..f33201bf8977 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -483,7 +483,7 @@
* B <-> _PAGE_DMB (memory break)
*
* Then incredible subtlety: The access rights are
- * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ
+ * _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE
* See 3-14 of the parisc 2.0 manual
*
* Finally, _PAGE_READ goes in the top bit of PL1 (so we
@@ -493,7 +493,7 @@
/* PAGE_USER indicates the page can be read with user privileges,
* so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1
- * contains _PAGE_READ */
+ * contains _PAGE_READ) */
extrd,u,*= \pte,_PAGE_USER_BIT+32,1,%r0
depdi 7,11,3,\prot
/* If we're a gateway page, drop PL2 back to zero for promotion
@@ -1748,44 +1748,6 @@ ENTRY(sys_rt_sigreturn_wrapper)
LDREG PT_GR28(%r1),%r28 /* reload original r28 for syscall_exit */
ENDPROC(sys_rt_sigreturn_wrapper)
-ENTRY(sys_sigaltstack_wrapper)
- /* Get the user stack pointer */
- LDREG TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
- ldo TASK_REGS(%r1),%r24 /* get pt regs */
- LDREG TASK_PT_GR30(%r24),%r24
- STREG %r2, -RP_OFFSET(%r30)
-#ifdef CONFIG_64BIT
- ldo FRAME_SIZE(%r30), %r30
- BL do_sigaltstack,%r2
- ldo -16(%r30),%r29 /* Reference param save area */
-#else
- BL do_sigaltstack,%r2
- ldo FRAME_SIZE(%r30), %r30
-#endif
-
- ldo -FRAME_SIZE(%r30), %r30
- LDREG -RP_OFFSET(%r30), %r2
- bv %r0(%r2)
- nop
-ENDPROC(sys_sigaltstack_wrapper)
-
-#ifdef CONFIG_64BIT
-ENTRY(sys32_sigaltstack_wrapper)
- /* Get the user stack pointer */
- LDREG TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r24
- LDREG TASK_PT_GR30(%r24),%r24
- STREG %r2, -RP_OFFSET(%r30)
- ldo FRAME_SIZE(%r30), %r30
- BL do_sigaltstack32,%r2
- ldo -16(%r30),%r29 /* Reference param save area */
-
- ldo -FRAME_SIZE(%r30), %r30
- LDREG -RP_OFFSET(%r30), %r2
- bv %r0(%r2)
- nop
-ENDPROC(sys32_sigaltstack_wrapper)
-#endif
-
ENTRY(syscall_exit)
/* NOTE: HP-UX syscalls also come through here
* after hpux_syscall_exit fixes up return
@@ -1865,7 +1827,7 @@ syscall_restore:
/* Are we being ptraced? */
ldw TASK_FLAGS(%r1),%r19
- ldi (_TIF_SINGLESTEP|_TIF_BLOCKSTEP),%r2
+ ldi _TIF_SYSCALL_TRACE_MASK,%r2
and,COND(=) %r19,%r2,%r0
b,n syscall_restore_rfi
@@ -1978,15 +1940,23 @@ syscall_restore_rfi:
/* sr2 should be set to zero for userspace syscalls */
STREG %r0,TASK_PT_SR2(%r1)
-pt_regs_ok:
LDREG TASK_PT_GR31(%r1),%r2
- depi 3,31,2,%r2 /* ensure return to user mode. */
- STREG %r2,TASK_PT_IAOQ0(%r1)
+ depi 3,31,2,%r2 /* ensure return to user mode. */
+ STREG %r2,TASK_PT_IAOQ0(%r1)
ldo 4(%r2),%r2
STREG %r2,TASK_PT_IAOQ1(%r1)
+ b intr_restore
copy %r25,%r16
+
+pt_regs_ok:
+ LDREG TASK_PT_IAOQ0(%r1),%r2
+ depi 3,31,2,%r2 /* ensure return to user mode. */
+ STREG %r2,TASK_PT_IAOQ0(%r1)
+ LDREG TASK_PT_IAOQ1(%r1),%r2
+ depi 3,31,2,%r2
+ STREG %r2,TASK_PT_IAOQ1(%r1)
b intr_restore
- nop
+ copy %r25,%r16
.import schedule,code
syscall_do_resched:
diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index f48a640b55fb..f7752f6af29e 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -38,7 +38,7 @@
* so don't reference this table after starting the init process
*/
-static struct hp_hardware hp_hardware_list[] __devinitdata = {
+static struct hp_hardware hp_hardware_list[] = {
{HPHW_NPROC,0x01,0x4,0x0,"Indigo (840, 930)"},
{HPHW_NPROC,0x8,0x4,0x01,"Firefox(825,925)"},
{HPHW_NPROC,0xA,0x4,0x01,"Top Gun (835,834,935,635)"},
@@ -1230,7 +1230,7 @@ static struct hp_cpu_type_mask {
unsigned short model;
unsigned short mask;
enum cpu_type cpu;
-} hp_cpu_type_mask_list[] __devinitdata = {
+} hp_cpu_type_mask_list[] = {
{ 0x0000, 0x0ff0, pcx }, /* 0x0000 - 0x000f */
{ 0x0048, 0x0ff0, pcxl }, /* 0x0040 - 0x004f */
@@ -1327,8 +1327,7 @@ const char * const cpu_name_version[][2] = {
[mako2] = { "PA8900 (Shortfin)", "2.0" }
};
-const char * __devinit
-parisc_hardware_description(struct parisc_device_id *id)
+const char *parisc_hardware_description(struct parisc_device_id *id)
{
struct hp_hardware *listptr;
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index 08324aac3544..3295ef4a185d 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -186,12 +186,14 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
if (status != PDC_OK) {
/* no more cell modules or error */
+ kfree(pa_pdc_cell);
return status;
}
temp = pa_pdc_cell->cba;
dev = alloc_pa_dev(PAT_GET_CBA(temp), &(pa_pdc_cell->mod_path));
if (!dev) {
+ kfree(pa_pdc_cell);
return PDC_OK;
}
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index c0b1affc06a8..8094d3ed3b64 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -379,14 +379,14 @@ void do_cpu_irq_mask(struct pt_regs *regs)
static struct irqaction timer_action = {
.handler = timer_interrupt,
.name = "timer",
- .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
+ .flags = IRQF_TIMER | IRQF_PERCPU | IRQF_IRQPOLL,
};
#ifdef CONFIG_SMP
static struct irqaction ipi_action = {
.handler = ipi_interrupt,
.name = "IPI",
- .flags = IRQF_DISABLED | IRQF_PERCPU,
+ .flags = IRQF_PERCPU,
};
#endif
@@ -410,11 +410,13 @@ void __init init_IRQ(void)
{
local_irq_disable(); /* PARANOID - should already be disabled */
mtctl(~0UL, 23); /* EIRR : clear all pending external intr */
- claim_cpu_irqs();
#ifdef CONFIG_SMP
- if (!cpu_eiem)
+ if (!cpu_eiem) {
+ claim_cpu_irqs();
cpu_eiem = EIEM_MASK(IPI_IRQ) | EIEM_MASK(TIMER_IRQ);
+ }
#else
+ claim_cpu_irqs();
cpu_eiem = EIEM_MASK(TIMER_IRQ);
#endif
set_eiem(cpu_eiem); /* EIEM : enable all external intr */
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index 5d7218ad885c..312b48422a56 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -199,7 +199,6 @@ ENTRY(flush_instruction_cache_local)
.callinfo NO_CALLS
.entry
- mtsp %r0, %sr1
load32 cache_info, %r1
/* Flush Instruction Cache */
@@ -208,7 +207,8 @@ ENTRY(flush_instruction_cache_local)
LDREG ICACHE_STRIDE(%r1), %arg1
LDREG ICACHE_COUNT(%r1), %arg2
LDREG ICACHE_LOOP(%r1), %arg3
- rsm PSW_SM_I, %r22 /* No mmgt ops during loop*/
+ rsm PSW_SM_I, %r22 /* No mmgt ops during loop*/
+ mtsp %r0, %sr1
addib,COND(=) -1, %arg3, fioneloop /* Preadjust and test */
movb,<,n %arg3, %r31, fisync /* If loop < 0, do sync */
@@ -220,7 +220,33 @@ fimanyloop: /* Loop if LOOP >= 2 */
addib,COND(<=),n -1, %arg2, fisync /* Outer loop decr */
fioneloop: /* Loop if LOOP = 1 */
- addib,COND(>) -1, %arg2, fioneloop /* Outer loop count decr */
+ /* Some implementations may flush with a single fice instruction */
+ cmpib,COND(>>=),n 15, %arg2, fioneloop2
+
+fioneloop1:
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ fice,m %arg1(%sr1, %arg0)
+ addib,COND(>) -16, %arg2, fioneloop1
+ fice,m %arg1(%sr1, %arg0)
+
+ /* Check if done */
+ cmpb,COND(=),n %arg2, %r0, fisync /* Predict branch taken */
+
+fioneloop2:
+ addib,COND(>) -1, %arg2, fioneloop2 /* Outer loop count decr */
fice,m %arg1(%sr1, %arg0) /* Fice for one loop */
fisync:
@@ -240,8 +266,7 @@ ENTRY(flush_data_cache_local)
.callinfo NO_CALLS
.entry
- mtsp %r0, %sr1
- load32 cache_info, %r1
+ load32 cache_info, %r1
/* Flush Data Cache */
@@ -249,7 +274,8 @@ ENTRY(flush_data_cache_local)
LDREG DCACHE_STRIDE(%r1), %arg1
LDREG DCACHE_COUNT(%r1), %arg2
LDREG DCACHE_LOOP(%r1), %arg3
- rsm PSW_SM_I, %r22
+ rsm PSW_SM_I, %r22 /* No mmgt ops during loop*/
+ mtsp %r0, %sr1
addib,COND(=) -1, %arg3, fdoneloop /* Preadjust and test */
movb,<,n %arg3, %r31, fdsync /* If loop < 0, do sync */
@@ -261,7 +287,33 @@ fdmanyloop: /* Loop if LOOP >= 2 */
addib,COND(<=),n -1, %arg2, fdsync /* Outer loop decr */
fdoneloop: /* Loop if LOOP = 1 */
- addib,COND(>) -1, %arg2, fdoneloop /* Outer loop count decr */
+ /* Some implementations may flush with a single fdce instruction */
+ cmpib,COND(>>=),n 15, %arg2, fdoneloop2
+
+fdoneloop1:
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ fdce,m %arg1(%sr1, %arg0)
+ addib,COND(>) -16, %arg2, fdoneloop1
+ fdce,m %arg1(%sr1, %arg0)
+
+ /* Check if done */
+ cmpb,COND(=),n %arg2, %r0, fdsync /* Predict branch taken */
+
+fdoneloop2:
+ addib,COND(>) -1, %arg2, fdoneloop2 /* Outer loop count decr */
fdce,m %arg1(%sr1, %arg0) /* Fdce for one loop */
fdsync:
@@ -277,7 +329,104 @@ ENDPROC(flush_data_cache_local)
.align 16
-ENTRY(copy_user_page_asm)
+/* Macros to serialize TLB purge operations on SMP. */
+
+ .macro tlb_lock la,flags,tmp
+#ifdef CONFIG_SMP
+ ldil L%pa_tlb_lock,%r1
+ ldo R%pa_tlb_lock(%r1),\la
+ rsm PSW_SM_I,\flags
+1: LDCW 0(\la),\tmp
+ cmpib,<>,n 0,\tmp,3f
+2: ldw 0(\la),\tmp
+ cmpb,<> %r0,\tmp,1b
+ nop
+ b,n 2b
+3:
+#endif
+ .endm
+
+ .macro tlb_unlock la,flags,tmp
+#ifdef CONFIG_SMP
+ ldi 1,\tmp
+ stw \tmp,0(\la)
+ mtsm \flags
+#endif
+ .endm
+
+/* Clear page using kernel mapping. */
+
+ENTRY(clear_page_asm)
+ .proc
+ .callinfo NO_CALLS
+ .entry
+
+#ifdef CONFIG_64BIT
+
+ /* Unroll the loop. */
+ ldi (PAGE_SIZE / 128), %r1
+
+1:
+ std %r0, 0(%r26)
+ std %r0, 8(%r26)
+ std %r0, 16(%r26)
+ std %r0, 24(%r26)
+ std %r0, 32(%r26)
+ std %r0, 40(%r26)
+ std %r0, 48(%r26)
+ std %r0, 56(%r26)
+ std %r0, 64(%r26)
+ std %r0, 72(%r26)
+ std %r0, 80(%r26)
+ std %r0, 88(%r26)
+ std %r0, 96(%r26)
+ std %r0, 104(%r26)
+ std %r0, 112(%r26)
+ std %r0, 120(%r26)
+
+ /* Note reverse branch hint for addib is taken. */
+ addib,COND(>),n -1, %r1, 1b
+ ldo 128(%r26), %r26
+
+#else
+
+ /*
+ * Note that until (if) we start saving the full 64-bit register
+ * values on interrupt, we can't use std on a 32 bit kernel.
+ */
+ ldi (PAGE_SIZE / 64), %r1
+
+1:
+ stw %r0, 0(%r26)
+ stw %r0, 4(%r26)
+ stw %r0, 8(%r26)
+ stw %r0, 12(%r26)
+ stw %r0, 16(%r26)
+ stw %r0, 20(%r26)
+ stw %r0, 24(%r26)
+ stw %r0, 28(%r26)
+ stw %r0, 32(%r26)
+ stw %r0, 36(%r26)
+ stw %r0, 40(%r26)
+ stw %r0, 44(%r26)
+ stw %r0, 48(%r26)
+ stw %r0, 52(%r26)
+ stw %r0, 56(%r26)
+ stw %r0, 60(%r26)
+
+ addib,COND(>),n -1, %r1, 1b
+ ldo 64(%r26), %r26
+#endif
+ bv %r0(%r2)
+ nop
+ .exit
+
+ .procend
+ENDPROC(clear_page_asm)
+
+/* Copy page using kernel mapping. */
+
+ENTRY(copy_page_asm)
.proc
.callinfo NO_CALLS
.entry
@@ -285,18 +434,14 @@ ENTRY(copy_user_page_asm)
#ifdef CONFIG_64BIT
/* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
* Unroll the loop by hand and arrange insn appropriately.
- * GCC probably can do this just as well.
+ * Prefetch doesn't improve performance on rp3440.
+ * GCC probably can do this just as well...
*/
- ldd 0(%r25), %r19
ldi (PAGE_SIZE / 128), %r1
- ldw 64(%r25), %r0 /* prefetch 1 cacheline ahead */
- ldw 128(%r25), %r0 /* prefetch 2 */
-
-1: ldd 8(%r25), %r20
- ldw 192(%r25), %r0 /* prefetch 3 */
- ldw 256(%r25), %r0 /* prefetch 4 */
+1: ldd 0(%r25), %r19
+ ldd 8(%r25), %r20
ldd 16(%r25), %r21
ldd 24(%r25), %r22
@@ -330,20 +475,16 @@ ENTRY(copy_user_page_asm)
ldd 112(%r25), %r21
ldd 120(%r25), %r22
+ ldo 128(%r25), %r25
std %r19, 96(%r26)
std %r20, 104(%r26)
- ldo 128(%r25), %r25
std %r21, 112(%r26)
std %r22, 120(%r26)
- ldo 128(%r26), %r26
- /* conditional branches nullify on forward taken branch, and on
- * non-taken backward branch. Note that .+4 is a backwards branch.
- * The ldd should only get executed if the branch is taken.
- */
- addib,COND(>),n -1, %r1, 1b /* bundle 10 */
- ldd 0(%r25), %r19 /* start next loads */
+ /* Note reverse branch hint for addib is taken. */
+ addib,COND(>),n -1, %r1, 1b
+ ldo 128(%r26), %r26
#else
@@ -399,7 +540,7 @@ ENTRY(copy_user_page_asm)
.exit
.procend
-ENDPROC(copy_user_page_asm)
+ENDPROC(copy_page_asm)
/*
* NOTE: Code in clear_user_page has a hard coded dependency on the
@@ -422,8 +563,6 @@ ENDPROC(copy_user_page_asm)
* %r23 physical page (shifted for tlb insert) of "from" translation
*/
-#if 0
-
/*
* We can't do this since copy_user_page is used to bring in
* file data that might have instructions. Since the data would
@@ -435,6 +574,7 @@ ENDPROC(copy_user_page_asm)
* use it if more information is passed into copy_user_page().
* Have to do some measurements to see if it is worthwhile to
* lobby for such a change.
+ *
*/
ENTRY(copy_user_page_asm)
@@ -442,16 +582,21 @@ ENTRY(copy_user_page_asm)
.callinfo NO_CALLS
.entry
+ /* Convert virtual `to' and `from' addresses to physical addresses.
+ Move `from' physical address to non shadowed register. */
ldil L%(__PAGE_OFFSET), %r1
sub %r26, %r1, %r26
- sub %r25, %r1, %r23 /* move physical addr into non shadowed reg */
+ sub %r25, %r1, %r23
ldil L%(TMPALIAS_MAP_START), %r28
/* FIXME for different page sizes != 4k */
#ifdef CONFIG_64BIT
- extrd,u %r26,56,32, %r26 /* convert phys addr to tlb insert format */
- extrd,u %r23,56,32, %r23 /* convert phys addr to tlb insert format */
- depd %r24,63,22, %r28 /* Form aliased virtual address 'to' */
+#if (TMPALIAS_MAP_START >= 0x80000000)
+ depdi 0, 31,32, %r28 /* clear any sign extension */
+#endif
+ extrd,u %r26,56,32, %r26 /* convert phys addr to tlb insert format */
+ extrd,u %r23,56,32, %r23 /* convert phys addr to tlb insert format */
+ depd %r24,63,22, %r28 /* Form aliased virtual address 'to' */
depdi 0, 63,12, %r28 /* Clear any offset bits */
copy %r28, %r29
depdi 1, 41,1, %r29 /* Form aliased virtual address 'from' */
@@ -466,10 +611,76 @@ ENTRY(copy_user_page_asm)
/* Purge any old translations */
+#ifdef CONFIG_PA20
+ pdtlb,l 0(%r28)
+ pdtlb,l 0(%r29)
+#else
+ tlb_lock %r20,%r21,%r22
pdtlb 0(%r28)
pdtlb 0(%r29)
+ tlb_unlock %r20,%r21,%r22
+#endif
+
+#ifdef CONFIG_64BIT
+ /* PA8x00 CPUs can consume 2 loads or 1 store per cycle.
+ * Unroll the loop by hand and arrange insn appropriately.
+ * GCC probably can do this just as well.
+ */
- ldi 64, %r1
+ ldd 0(%r29), %r19
+ ldi (PAGE_SIZE / 128), %r1
+
+1: ldd 8(%r29), %r20
+
+ ldd 16(%r29), %r21
+ ldd 24(%r29), %r22
+ std %r19, 0(%r28)
+ std %r20, 8(%r28)
+
+ ldd 32(%r29), %r19
+ ldd 40(%r29), %r20
+ std %r21, 16(%r28)
+ std %r22, 24(%r28)
+
+ ldd 48(%r29), %r21
+ ldd 56(%r29), %r22
+ std %r19, 32(%r28)
+ std %r20, 40(%r28)
+
+ ldd 64(%r29), %r19
+ ldd 72(%r29), %r20
+ std %r21, 48(%r28)
+ std %r22, 56(%r28)
+
+ ldd 80(%r29), %r21
+ ldd 88(%r29), %r22
+ std %r19, 64(%r28)
+ std %r20, 72(%r28)
+
+ ldd 96(%r29), %r19
+ ldd 104(%r29), %r20
+ std %r21, 80(%r28)
+ std %r22, 88(%r28)
+
+ ldd 112(%r29), %r21
+ ldd 120(%r29), %r22
+ std %r19, 96(%r28)
+ std %r20, 104(%r28)
+
+ ldo 128(%r29), %r29
+ std %r21, 112(%r28)
+ std %r22, 120(%r28)
+ ldo 128(%r28), %r28
+
+ /* conditional branches nullify on forward taken branch, and on
+ * non-taken backward branch. Note that .+4 is a backwards branch.
+ * The ldd should only get executed if the branch is taken.
+ */
+ addib,COND(>),n -1, %r1, 1b /* bundle 10 */
+ ldd 0(%r29), %r19 /* start next loads */
+
+#else
+ ldi (PAGE_SIZE / 64), %r1
/*
* This loop is optimized for PCXL/PCXL2 ldw/ldw and stw/stw
@@ -480,9 +691,7 @@ ENTRY(copy_user_page_asm)
* use ldd/std on a 32 bit kernel.
*/
-
-1:
- ldw 0(%r29), %r19
+1: ldw 0(%r29), %r19
ldw 4(%r29), %r20
ldw 8(%r29), %r21
ldw 12(%r29), %r22
@@ -515,8 +724,10 @@ ENTRY(copy_user_page_asm)
stw %r21, 56(%r28)
stw %r22, 60(%r28)
ldo 64(%r28), %r28
+
addib,COND(>) -1, %r1,1b
ldo 64(%r29), %r29
+#endif
bv %r0(%r2)
nop
@@ -524,9 +735,8 @@ ENTRY(copy_user_page_asm)
.procend
ENDPROC(copy_user_page_asm)
-#endif
-ENTRY(__clear_user_page_asm)
+ENTRY(clear_user_page_asm)
.proc
.callinfo NO_CALLS
.entry
@@ -550,7 +760,13 @@ ENTRY(__clear_user_page_asm)
/* Purge any old translation */
+#ifdef CONFIG_PA20
+ pdtlb,l 0(%r28)
+#else
+ tlb_lock %r20,%r21,%r22
pdtlb 0(%r28)
+ tlb_unlock %r20,%r21,%r22
+#endif
#ifdef CONFIG_64BIT
ldi (PAGE_SIZE / 128), %r1
@@ -580,8 +796,7 @@ ENTRY(__clear_user_page_asm)
#else /* ! CONFIG_64BIT */
ldi (PAGE_SIZE / 64), %r1
-1:
- stw %r0, 0(%r28)
+1: stw %r0, 0(%r28)
stw %r0, 4(%r28)
stw %r0, 8(%r28)
stw %r0, 12(%r28)
@@ -606,7 +821,7 @@ ENTRY(__clear_user_page_asm)
.exit
.procend
-ENDPROC(__clear_user_page_asm)
+ENDPROC(clear_user_page_asm)
ENTRY(flush_dcache_page_asm)
.proc
@@ -630,7 +845,13 @@ ENTRY(flush_dcache_page_asm)
/* Purge any old translation */
+#ifdef CONFIG_PA20
+ pdtlb,l 0(%r28)
+#else
+ tlb_lock %r20,%r21,%r22
pdtlb 0(%r28)
+ tlb_unlock %r20,%r21,%r22
+#endif
ldil L%dcache_stride, %r1
ldw R%dcache_stride(%r1), %r1
@@ -663,8 +884,17 @@ ENTRY(flush_dcache_page_asm)
fdc,m %r1(%r28)
sync
+
+#ifdef CONFIG_PA20
+ pdtlb,l 0(%r25)
+#else
+ tlb_lock %r20,%r21,%r22
+ pdtlb 0(%r25)
+ tlb_unlock %r20,%r21,%r22
+#endif
+
bv %r0(%r2)
- pdtlb (%r25)
+ nop
.exit
.procend
@@ -692,7 +922,13 @@ ENTRY(flush_icache_page_asm)
/* Purge any old translation */
- pitlb (%sr4,%r28)
+#ifdef CONFIG_PA20
+ pitlb,l %r0(%sr4,%r28)
+#else
+ tlb_lock %r20,%r21,%r22
+ pitlb (%sr4,%r28)
+ tlb_unlock %r20,%r21,%r22
+#endif
ldil L%icache_stride, %r1
ldw R%icache_stride(%r1), %r1
@@ -727,8 +963,17 @@ ENTRY(flush_icache_page_asm)
fic,m %r1(%sr4,%r28)
sync
+
+#ifdef CONFIG_PA20
+ pitlb,l %r0(%sr4,%r25)
+#else
+ tlb_lock %r20,%r21,%r22
+ pitlb (%sr4,%r25)
+ tlb_unlock %r20,%r21,%r22
+#endif
+
bv %r0(%r2)
- pitlb (%sr4,%r25)
+ nop
.exit
.procend
@@ -777,7 +1022,7 @@ ENTRY(flush_kernel_dcache_page_asm)
.procend
ENDPROC(flush_kernel_dcache_page_asm)
-ENTRY(purge_kernel_dcache_page)
+ENTRY(purge_kernel_dcache_page_asm)
.proc
.callinfo NO_CALLS
.entry
@@ -817,7 +1062,7 @@ ENTRY(purge_kernel_dcache_page)
.exit
.procend
-ENDPROC(purge_kernel_dcache_page)
+ENDPROC(purge_kernel_dcache_page_asm)
ENTRY(flush_user_dcache_range_asm)
.proc
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index ceec85de6290..6795dc6c995f 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -157,5 +157,6 @@ extern void _mcount(void);
EXPORT_SYMBOL(_mcount);
#endif
-/* from pacache.S -- needed for copy_page */
-EXPORT_SYMBOL(copy_user_page_asm);
+/* from pacache.S -- needed for clear/copy_page */
+EXPORT_SYMBOL(clear_page_asm);
+EXPORT_SYMBOL(copy_page_asm);
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index efc5e7d30530..d5cae55195ec 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -138,23 +138,17 @@ static const struct tty_operations pdc_console_tty_ops = {
static void pdc_console_poll(unsigned long unused)
{
int data, count = 0;
- struct tty_struct *tty = tty_port_tty_get(&tty_port);
-
- if (!tty)
- return;
while (1) {
data = pdc_console_poll_key(NULL);
if (data == -1)
break;
- tty_insert_flip_char(tty, data & 0xFF, TTY_NORMAL);
+ tty_insert_flip_char(&tty_port, data & 0xFF, TTY_NORMAL);
count ++;
}
if (count)
- tty_flip_buffer_push(tty);
-
- tty_kref_put(tty);
+ tty_flip_buffer_push(&tty_port);
if (pdc_cons.flags & CON_ENABLED)
mod_timer(&pdc_console_timer, jiffies + PDC_CONS_POLL_DELAY);
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 857c2f545470..534abd4936e1 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -26,7 +26,7 @@
#include <asm/asm-offsets.h>
/* PSW bits we allow the debugger to modify */
-#define USER_PSW_BITS (PSW_N | PSW_V | PSW_CB)
+#define USER_PSW_BITS (PSW_N | PSW_B | PSW_V | PSW_CB)
/*
* Called by kernel/ptrace.c when detaching..
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 537996955998..98e9e7126565 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -143,7 +143,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
goto give_sigsegv;
DBG(1,"sys_rt_sigreturn: usp %#08lx stack 0x%p\n",
usp, &compat_frame->uc.uc_stack);
- if (do_sigaltstack32(&compat_frame->uc.uc_stack, NULL, usp) == -EFAULT)
+ if (compat_restore_altstack(&compat_frame->uc.uc_stack))
goto give_sigsegv;
} else
#endif
@@ -154,7 +154,7 @@ sys_rt_sigreturn(struct pt_regs *regs, int in_syscall)
goto give_sigsegv;
DBG(1,"sys_rt_sigreturn: usp %#08lx stack 0x%p\n",
usp, &frame->uc.uc_stack);
- if (do_sigaltstack(&frame->uc.uc_stack, NULL, usp) == -EFAULT)
+ if (restore_altstack(&frame->uc.uc_stack))
goto give_sigsegv;
}
@@ -190,8 +190,10 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
DBG(1,"get_sigframe: ka = %#lx, sp = %#lx, frame_size = %#lx\n",
(unsigned long)ka, sp, frame_size);
+ /* Align alternate stack and reserve 64 bytes for the signal
+ handler's frame marker. */
if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp))
- sp = current->sas_ss_sp; /* Stacks grow up! */
+ sp = (current->sas_ss_sp + 0x7f) & ~0x3f; /* Stacks grow up! */
DBG(1,"get_sigframe: Returning sp = %#lx\n", (unsigned long)sp);
return (void __user *) sp; /* Stacks grow up. Fun. */
@@ -260,15 +262,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
if (is_compat_task()) {
DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &compat_frame->info);
err |= copy_siginfo_to_user32(&compat_frame->info, info);
- DBG(1,"SETUP_RT_FRAME: 1\n");
- compat_val = (compat_int_t)current->sas_ss_sp;
- err |= __put_user(compat_val, &compat_frame->uc.uc_stack.ss_sp);
- DBG(1,"SETUP_RT_FRAME: 2\n");
- compat_val = (compat_int_t)current->sas_ss_size;
- err |= __put_user(compat_val, &compat_frame->uc.uc_stack.ss_size);
- DBG(1,"SETUP_RT_FRAME: 3\n");
- compat_val = sas_ss_flags(regs->gr[30]);
- err |= __put_user(compat_val, &compat_frame->uc.uc_stack.ss_flags);
+ err |= __compat_save_altstack( &compat_frame->uc.uc_stack, regs->gr[30]);
DBG(1,"setup_rt_frame: frame->uc = 0x%p\n", &compat_frame->uc);
DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &compat_frame->uc.uc_mcontext);
err |= setup_sigcontext32(&compat_frame->uc.uc_mcontext,
@@ -280,10 +274,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
{
DBG(1,"setup_rt_frame: frame->info = 0x%p\n", &frame->info);
err |= copy_siginfo_to_user(&frame->info, info);
- err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
- err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
- err |= __put_user(sas_ss_flags(regs->gr[30]),
- &frame->uc.uc_stack.ss_flags);
+ err |= __save_altstack(&frame->uc.uc_stack, regs->gr[30]);
DBG(1,"setup_rt_frame: frame->uc = 0x%p\n", &frame->uc);
DBG(1,"setup_rt_frame: frame->uc.uc_mcontext = 0x%p\n", &frame->uc.uc_mcontext);
err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, in_syscall);
@@ -310,7 +301,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
#if DEBUG_SIG
/* Assert that we're flushing in the correct space... */
{
- int sid;
+ unsigned long sid;
asm ("mfsp %%sr3,%0" : "=r" (sid));
DBG(1,"setup_rt_frame: Flushing 64 bytes at space %#x offset %p\n",
sid, frame->tramp);
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 5dede04f2f3e..33eca1b04926 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -60,129 +60,6 @@ sigset_64to32(compat_sigset_t *s32, sigset_t *s64)
s32->sig[1] = (s64->sig[0] >> 32) & 0xffffffffUL;
}
-static int
-put_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
-{
- compat_sigset_t s;
-
- if (sz != sizeof *set)
- return -EINVAL;
- sigset_64to32(&s, set);
-
- return copy_to_user(up, &s, sizeof s);
-}
-
-static int
-get_sigset32(compat_sigset_t __user *up, sigset_t *set, size_t sz)
-{
- compat_sigset_t s;
- int r;
-
- if (sz != sizeof *set)
- return -EINVAL;
-
- if ((r = copy_from_user(&s, up, sz)) == 0) {
- sigset_32to64(set, &s);
- }
-
- return r;
-}
-
-int sys32_rt_sigprocmask(int how, compat_sigset_t __user *set, compat_sigset_t __user *oset,
- unsigned int sigsetsize)
-{
- sigset_t old_set, new_set;
- int ret;
-
- if (set && get_sigset32(set, &new_set, sigsetsize))
- return -EFAULT;
-
- KERNEL_SYSCALL(ret, sys_rt_sigprocmask, how, set ? (sigset_t __user *)&new_set : NULL,
- oset ? (sigset_t __user *)&old_set : NULL, sigsetsize);
-
- if (!ret && oset && put_sigset32(oset, &old_set, sigsetsize))
- return -EFAULT;
-
- return ret;
-}
-
-
-int sys32_rt_sigpending(compat_sigset_t __user *uset, unsigned int sigsetsize)
-{
- int ret;
- sigset_t set;
-
- KERNEL_SYSCALL(ret, sys_rt_sigpending, (sigset_t __user *)&set, sigsetsize);
-
- if (!ret && put_sigset32(uset, &set, sigsetsize))
- return -EFAULT;
-
- return ret;
-}
-
-long
-sys32_rt_sigaction(int sig, const struct sigaction32 __user *act, struct sigaction32 __user *oact,
- size_t sigsetsize)
-{
- struct k_sigaction32 new_sa32, old_sa32;
- struct k_sigaction new_sa, old_sa;
- int ret = -EINVAL;
-
- if (act) {
- if (copy_from_user(&new_sa32.sa, act, sizeof new_sa32.sa))
- return -EFAULT;
- new_sa.sa.sa_handler = (__sighandler_t)(unsigned long)new_sa32.sa.sa_handler;
- new_sa.sa.sa_flags = new_sa32.sa.sa_flags;
- sigset_32to64(&new_sa.sa.sa_mask, &new_sa32.sa.sa_mask);
- }
-
- ret = do_sigaction(sig, act ? &new_sa : NULL, oact ? &old_sa : NULL);
-
- if (!ret && oact) {
- sigset_64to32(&old_sa32.sa.sa_mask, &old_sa.sa.sa_mask);
- old_sa32.sa.sa_flags = old_sa.sa.sa_flags;
- old_sa32.sa.sa_handler = (__sighandler_t32)(unsigned long)old_sa.sa.sa_handler;
- if (copy_to_user(oact, &old_sa32.sa, sizeof old_sa32.sa))
- return -EFAULT;
- }
- return ret;
-}
-
-int
-do_sigaltstack32 (const compat_stack_t __user *uss32, compat_stack_t __user *uoss32, unsigned long sp)
-{
- compat_stack_t ss32, oss32;
- stack_t ss, oss;
- stack_t *ssp = NULL, *ossp = NULL;
- int ret;
-
- if (uss32) {
- if (copy_from_user(&ss32, uss32, sizeof ss32))
- return -EFAULT;
-
- ss.ss_sp = (void __user *)(unsigned long)ss32.ss_sp;
- ss.ss_flags = ss32.ss_flags;
- ss.ss_size = ss32.ss_size;
-
- ssp = &ss;
- }
-
- if (uoss32)
- ossp = &oss;
-
- KERNEL_SYSCALL(ret, do_sigaltstack, (const stack_t __user *)ssp, (stack_t __user *)ossp, sp);
-
- if (!ret && uoss32) {
- oss32.ss_sp = (unsigned int)(unsigned long)oss.ss_sp;
- oss32.ss_flags = oss.ss_flags;
- oss32.ss_size = oss.ss_size;
- if (copy_to_user(uoss32, &oss32, sizeof *uoss32))
- return -EFAULT;
- }
-
- return ret;
-}
-
long
restore_sigcontext32(struct compat_sigcontext __user *sc, struct compat_regfile __user * rf,
struct pt_regs *regs)
@@ -499,22 +376,3 @@ copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from)
}
return err;
}
-
-asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig,
- struct compat_siginfo __user *uinfo)
-{
- siginfo_t info;
-
- if (copy_siginfo_from_user32(&info, uinfo))
- return -EFAULT;
-
- /* Not even root can pretend to send signals from the kernel.
- Nor can they impersonate a kill(), which adds source info. */
- if (info.si_code >= 0)
- return -EPERM;
- info.si_signo = sig;
-
- /* POSIX.1b doesn't mention process groups. */
- return kill_proc_info(sig, &info, pid);
-}
-
diff --git a/arch/parisc/kernel/signal32.h b/arch/parisc/kernel/signal32.h
index 08a88b5349a2..72ab41a51f32 100644
--- a/arch/parisc/kernel/signal32.h
+++ b/arch/parisc/kernel/signal32.h
@@ -21,23 +21,6 @@
#include <linux/compat.h>
-typedef compat_uptr_t compat_sighandler_t;
-
-typedef struct compat_sigaltstack {
- compat_uptr_t ss_sp;
- compat_int_t ss_flags;
- compat_size_t ss_size;
-} compat_stack_t;
-
-/* Most things should be clean enough to redefine this at will, if care
- is taken to make libc match. */
-
-struct compat_sigaction {
- compat_sighandler_t sa_handler;
- compat_uint_t sa_flags;
- compat_sigset_t sa_mask; /* mask last for extensibility */
-};
-
/* 32-bit ucontext as seen from an 64-bit kernel */
struct compat_ucontext {
compat_uint_t uc_flags;
@@ -51,10 +34,6 @@ struct compat_ucontext {
/* ELF32 signal handling */
-struct k_sigaction32 {
- struct compat_sigaction sa;
-};
-
int copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from);
int copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from);
@@ -102,8 +81,6 @@ struct compat_rt_sigframe {
void sigset_32to64(sigset_t *s64, compat_sigset_t *s32);
void sigset_64to32(compat_sigset_t *s32, sigset_t *s64);
-int do_sigaltstack32 (const compat_stack_t __user *uss32,
- compat_stack_t __user *uoss32, unsigned long sp);
long restore_sigcontext32(struct compat_sigcontext __user *sc,
struct compat_regfile __user *rf,
struct pt_regs *regs);
diff --git a/arch/parisc/kernel/sys32.h b/arch/parisc/kernel/sys32.h
index 06c2090cfaba..60dd470f39f8 100644
--- a/arch/parisc/kernel/sys32.h
+++ b/arch/parisc/kernel/sys32.h
@@ -33,16 +33,4 @@
set_fs (old_fs); \
}
-#ifdef CONFIG_COMPAT
-
-typedef __u32 __sighandler_t32;
-
-struct sigaction32 {
- __sighandler_t32 sa_handler;
- unsigned int sa_flags;
- compat_sigset_t sa_mask; /* mask last for extensibility */
-};
-
-#endif
-
#endif
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index f76c10863c62..54d619d4cac6 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -94,11 +94,12 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
{
if (len > TASK_SIZE)
return -ENOMEM;
- /* Might want to check for cache aliasing issues for MAP_FIXED case
- * like ARM or MIPS ??? --BenH.
- */
- if (flags & MAP_FIXED)
+ if (flags & MAP_FIXED) {
+ if ((flags & MAP_SHARED) &&
+ (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+ return -EINVAL;
return addr;
+ }
if (!addr)
addr = TASK_UNMAPPED_BASE;
@@ -212,6 +213,13 @@ asmlinkage long parisc_sync_file_range(int fd,
(loff_t)hi_nbytes << 32 | lo_nbytes, flags);
}
+asmlinkage long parisc_fallocate(int fd, int mode, u32 offhi, u32 offlo,
+ u32 lenhi, u32 lenlo)
+{
+ return sys_fallocate(fd, mode, ((u64)offhi << 32) | offlo,
+ ((u64)lenhi << 32) | lenlo);
+}
+
asmlinkage unsigned long sys_alloc_hugepages(int key, unsigned long addr, unsigned long len, int prot, int flag)
{
return -ENOMEM;
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 9cfdaa19ab63..eca69bb8ef5f 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -21,7 +21,6 @@
#include <linux/time.h>
#include <linux/smp.h>
#include <linux/sem.h>
-#include <linux/msg.h>
#include <linux/shm.h>
#include <linux/slab.h>
#include <linux/uio.h>
@@ -61,111 +60,23 @@ asmlinkage long sys32_unimplemented(int r26, int r25, int r24, int r23,
return -ENOSYS;
}
-asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
- struct compat_timespec __user *interval)
-{
- struct timespec t;
- int ret;
-
- KERNEL_SYSCALL(ret, sys_sched_rr_get_interval, pid, (struct timespec __user *)&t);
- if (put_compat_timespec(&t, interval))
- return -EFAULT;
- return ret;
-}
-
-struct msgbuf32 {
- int mtype;
- char mtext[1];
-};
-
-asmlinkage long sys32_msgsnd(int msqid,
- struct msgbuf32 __user *umsgp32,
- size_t msgsz, int msgflg)
-{
- struct msgbuf *mb;
- struct msgbuf32 mb32;
- int err;
-
- if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
- return -ENOMEM;
-
- err = get_user(mb32.mtype, &umsgp32->mtype);
- mb->mtype = mb32.mtype;
- err |= copy_from_user(mb->mtext, &umsgp32->mtext, msgsz);
-
- if (err)
- err = -EFAULT;
- else
- KERNEL_SYSCALL(err, sys_msgsnd, msqid, (struct msgbuf __user *)mb, msgsz, msgflg);
-
- kfree(mb);
- return err;
-}
-
-asmlinkage long sys32_msgrcv(int msqid,
- struct msgbuf32 __user *umsgp32,
- size_t msgsz, long msgtyp, int msgflg)
-{
- struct msgbuf *mb;
- struct msgbuf32 mb32;
- int err, len;
-
- if ((mb = kmalloc(msgsz + sizeof *mb + 4, GFP_KERNEL)) == NULL)
- return -ENOMEM;
-
- KERNEL_SYSCALL(err, sys_msgrcv, msqid, (struct msgbuf __user *)mb, msgsz, msgtyp, msgflg);
-
- if (err >= 0) {
- len = err;
- mb32.mtype = mb->mtype;
- err = put_user(mb32.mtype, &umsgp32->mtype);
- err |= copy_to_user(&umsgp32->mtext, mb->mtext, len);
- if (err)
- err = -EFAULT;
- else
- err = len;
- }
-
- kfree(mb);
- return err;
-}
-
-asmlinkage int sys32_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, s32 count)
+/* Note: it is necessary to treat out_fd and in_fd as unsigned ints, with the
+ * corresponding cast to a signed int to insure that the proper conversion
+ * (sign extension) between the register representation of a signed int (msr in
+ * 32-bit mode) and the register representation of a signed int (msr in 64-bit
+ * mode) is performed.
+ */
+asmlinkage long sys32_sendfile(u32 out_fd, u32 in_fd,
+ compat_off_t __user *offset, compat_size_t count)
{
- mm_segment_t old_fs = get_fs();
- int ret;
- off_t of;
-
- if (offset && get_user(of, offset))
- return -EFAULT;
-
- set_fs(KERNEL_DS);
- ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, count);
- set_fs(old_fs);
-
- if (offset && put_user(of, offset))
- return -EFAULT;
-
- return ret;
+ return compat_sys_sendfile((int)out_fd, (int)in_fd, offset, count);
}
-asmlinkage int sys32_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, s32 count)
+asmlinkage long sys32_sendfile64(u32 out_fd, u32 in_fd,
+ compat_loff_t __user *offset, compat_size_t count)
{
- mm_segment_t old_fs = get_fs();
- int ret;
- loff_t lof;
-
- if (offset && get_user(lof, offset))
- return -EFAULT;
-
- set_fs(KERNEL_DS);
- ret = sys_sendfile64(out_fd, in_fd, offset ? (loff_t __user *)&lof : NULL, count);
- set_fs(old_fs);
-
- if (offset && put_user(lof, offset))
- return -EFAULT;
-
- return ret;
+ return sys_sendfile64((int)out_fd, (int)in_fd,
+ (loff_t __user *)offset, count);
}
@@ -200,13 +111,6 @@ long sys32_lookup_dcookie(u32 cookie_high, u32 cookie_low, char __user *buf,
buf, len);
}
-asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo,
- u32 lenhi, u32 lenlo)
-{
- return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo,
- ((loff_t)lenhi << 32) | lenlo);
-}
-
asmlinkage long compat_sys_fanotify_mark(int fan_fd, int flags, u32 mask_hi,
u32 mask_lo, int fd,
const char __user *pathname)
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 86742df0b194..5e055240f00b 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -309,10 +309,13 @@ tracesys_next:
LDREG TASK_PT_GR25(%r1), %r25
LDREG TASK_PT_GR24(%r1), %r24
LDREG TASK_PT_GR23(%r1), %r23
-#ifdef CONFIG_64BIT
LDREG TASK_PT_GR22(%r1), %r22
LDREG TASK_PT_GR21(%r1), %r21
+#ifdef CONFIG_64BIT
ldo -16(%r30),%r29 /* Reference param save area */
+#else
+ stw %r22, -52(%r30) /* 5th argument */
+ stw %r21, -56(%r30) /* 6th argument */
#endif
comiclr,>>= __NR_Linux_syscalls, %r20, %r0
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 54d950b067b7..fc9cab1cc2df 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -247,15 +247,12 @@
ENTRY_SAME(sched_yield)
ENTRY_SAME(sched_get_priority_max)
ENTRY_SAME(sched_get_priority_min) /* 160 */
- /* These 2 would've worked if someone had defined struct timespec
- * carefully, like timeval for example (which is about the same).
- * Unfortunately it contains a long :-( */
- ENTRY_DIFF(sched_rr_get_interval)
+ ENTRY_COMP(sched_rr_get_interval)
ENTRY_COMP(nanosleep)
ENTRY_SAME(mremap)
ENTRY_SAME(setresuid)
ENTRY_SAME(getresuid) /* 165 */
- ENTRY_DIFF(sigaltstack_wrapper)
+ ENTRY_COMP(sigaltstack)
ENTRY_SAME(ni_syscall) /* query_module */
ENTRY_SAME(poll)
/* structs contain pointers and an in_addr... */
@@ -265,9 +262,9 @@
ENTRY_SAME(prctl)
/* signals need a careful review */
ENTRY_SAME(rt_sigreturn_wrapper)
- ENTRY_DIFF(rt_sigaction)
- ENTRY_DIFF(rt_sigprocmask) /* 175 */
- ENTRY_DIFF(rt_sigpending)
+ ENTRY_COMP(rt_sigaction)
+ ENTRY_COMP(rt_sigprocmask) /* 175 */
+ ENTRY_COMP(rt_sigpending)
ENTRY_COMP(rt_sigtimedwait)
/* even though the struct siginfo_t is different, it appears like
* all the paths use values which should be same wide and narrow.
@@ -286,8 +283,8 @@
ENTRY_SAME(semop) /* 185 */
ENTRY_SAME(semget)
ENTRY_DIFF(semctl)
- ENTRY_DIFF(msgsnd)
- ENTRY_DIFF(msgrcv)
+ ENTRY_COMP(msgsnd)
+ ENTRY_COMP(msgrcv)
ENTRY_SAME(msgget) /* 190 */
ENTRY_SAME(msgctl)
ENTRY_SAME(shmat)
@@ -307,7 +304,7 @@
ENTRY_SAME(gettid)
ENTRY_OURS(readahead)
ENTRY_SAME(tkill)
- ENTRY_SAME(sendfile64)
+ ENTRY_DIFF(sendfile64)
ENTRY_COMP(futex) /* 210 */
ENTRY_COMP(sched_setaffinity)
ENTRY_COMP(sched_getaffinity)
@@ -327,12 +324,12 @@
ENTRY_SAME(epoll_wait)
ENTRY_SAME(remap_file_pages)
ENTRY_SAME(semtimedop)
- ENTRY_SAME(mq_open)
+ ENTRY_COMP(mq_open)
ENTRY_SAME(mq_unlink) /* 230 */
- ENTRY_SAME(mq_timedsend)
- ENTRY_SAME(mq_timedreceive)
- ENTRY_SAME(mq_notify)
- ENTRY_SAME(mq_getsetattr)
+ ENTRY_COMP(mq_timedsend)
+ ENTRY_COMP(mq_timedreceive)
+ ENTRY_COMP(mq_notify)
+ ENTRY_COMP(mq_getsetattr)
ENTRY_COMP(waitid) /* 235 */
ENTRY_OURS(fadvise64_64)
ENTRY_SAME(set_tid_address)
@@ -403,7 +400,7 @@
ENTRY_COMP(signalfd)
ENTRY_SAME(ni_syscall) /* was timerfd */
ENTRY_SAME(eventfd)
- ENTRY_COMP(fallocate) /* 305 */
+ ENTRY_OURS(fallocate) /* 305 */
ENTRY_SAME(timerfd_create)
ENTRY_COMP(timerfd_settime)
ENTRY_COMP(timerfd_gettime)
@@ -428,6 +425,10 @@
ENTRY_SAME(syncfs)
ENTRY_SAME(setns)
ENTRY_COMP(sendmmsg)
+ ENTRY_COMP(process_vm_readv) /* 330 */
+ ENTRY_COMP(process_vm_writev)
+ ENTRY_SAME(kcmp)
+ ENTRY_SAME(finit_module)
/* Nothing yet */
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 45ba99f5080b..aeb8f8f2c07a 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -282,7 +282,7 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err)
show_regs(regs);
dump_stack();
- add_taint(TAINT_DIE);
+ add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
if (in_interrupt())
panic("Fatal exception in interrupt");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.