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-rw-r--r--arch/s390/kernel/Makefile18
-rw-r--r--arch/s390/kernel/binfmt_elf32.c2
-rw-r--r--arch/s390/kernel/compat_ioctl.c81
-rw-r--r--arch/s390/kernel/compat_linux.c35
-rw-r--r--arch/s390/kernel/compat_signal.c2
-rw-r--r--arch/s390/kernel/compat_wrapper.S2
-rw-r--r--arch/s390/kernel/cpcmd.c16
-rw-r--r--arch/s390/kernel/crash.c2
-rw-r--r--arch/s390/kernel/entry64.S18
-rw-r--r--arch/s390/kernel/head.S4
-rw-r--r--arch/s390/kernel/machine_kexec.c2
-rw-r--r--arch/s390/kernel/module.c12
-rw-r--r--arch/s390/kernel/process.c59
-rw-r--r--arch/s390/kernel/ptrace.c79
-rw-r--r--arch/s390/kernel/reipl_diag.c2
-rw-r--r--arch/s390/kernel/s390_ksyms.c1
-rw-r--r--arch/s390/kernel/setup.c25
-rw-r--r--arch/s390/kernel/signal.c8
-rw-r--r--arch/s390/kernel/smp.c16
-rw-r--r--arch/s390/kernel/sys_s390.c12
-rw-r--r--arch/s390/kernel/time.c4
-rw-r--r--arch/s390/kernel/traps.c16
-rw-r--r--arch/s390/kernel/vmlinux.lds.S2
-rw-r--r--arch/s390/kernel/vtime.c27
24 files changed, 159 insertions, 286 deletions
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index 7434c32bc631..9269b5788fac 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -8,31 +8,25 @@ obj-y := bitmap.o traps.o time.o process.o \
setup.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \
semaphore.o s390_ext.o debug.o profile.o irq.o reipl_diag.o
+obj-y += $(if $(CONFIG_64BIT),entry64.o,entry.o)
+obj-y += $(if $(CONFIG_64BIT),reipl64.o,reipl.o)
+
extra-y += head.o init_task.o vmlinux.lds
obj-$(CONFIG_MODULES) += s390_ksyms.o module.o
obj-$(CONFIG_SMP) += smp.o
-obj-$(CONFIG_S390_SUPPORT) += compat_linux.o compat_signal.o \
- compat_ioctl.o compat_wrapper.o \
- compat_exec_domain.o
+obj-$(CONFIG_COMPAT) += compat_linux.o compat_signal.o \
+ compat_wrapper.o compat_exec_domain.o
obj-$(CONFIG_BINFMT_ELF32) += binfmt_elf32.o
-obj-$(CONFIG_ARCH_S390_31) += entry.o reipl.o
-obj-$(CONFIG_ARCH_S390X) += entry64.o reipl64.o
-
obj-$(CONFIG_VIRT_TIMER) += vtime.o
# Kexec part
S390_KEXEC_OBJS := machine_kexec.o crash.o
-ifeq ($(CONFIG_ARCH_S390X),y)
-S390_KEXEC_OBJS += relocate_kernel64.o
-else
-S390_KEXEC_OBJS += relocate_kernel.o
-endif
+S390_KEXEC_OBJS += $(if $(CONFIG_64BIT),relocate_kernel64.o,relocate_kernel.o)
obj-$(CONFIG_KEXEC) += $(S390_KEXEC_OBJS)
-
#
# This is just to get the dependencies...
#
diff --git a/arch/s390/kernel/binfmt_elf32.c b/arch/s390/kernel/binfmt_elf32.c
index 03ba5893f17b..1f451c2cb071 100644
--- a/arch/s390/kernel/binfmt_elf32.c
+++ b/arch/s390/kernel/binfmt_elf32.c
@@ -112,7 +112,7 @@ static inline int dump_regs32(struct pt_regs *ptregs, elf_gregset_t *regs)
static inline int dump_task_regs32(struct task_struct *tsk, elf_gregset_t *regs)
{
- struct pt_regs *ptregs = __KSTK_PTREGS(tsk);
+ struct pt_regs *ptregs = task_pt_regs(tsk);
int i;
memcpy(&regs->psw.mask, &ptregs->psw.mask, 4);
diff --git a/arch/s390/kernel/compat_ioctl.c b/arch/s390/kernel/compat_ioctl.c
deleted file mode 100644
index 6504c4e69986..000000000000
--- a/arch/s390/kernel/compat_ioctl.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * ioctl32.c: Conversion between 32bit and 64bit native ioctls.
- *
- * S390 version
- * Copyright (C) 2000-2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Gerhard Tonn (ton@de.ibm.com)
- * Arnd Bergmann (arndb@de.ibm.com)
- *
- * Original implementation from 32-bit Sparc compat code which is
- * Copyright (C) 2000 Silicon Graphics, Inc.
- * Written by Ulf Carlsson (ulfc@engr.sgi.com)
- */
-
-#include "compat_linux.h"
-#define INCLUDES
-#define CODE
-#include "../../../fs/compat_ioctl.c"
-#include <asm/dasd.h>
-#include <asm/cmb.h>
-#include <asm/tape390.h>
-#include <asm/ccwdev.h>
-#include "../../../drivers/s390/char/raw3270.h"
-
-static int do_ioctl32_pointer(unsigned int fd, unsigned int cmd,
- unsigned long arg, struct file *f)
-{
- return sys_ioctl(fd, cmd, (unsigned long)compat_ptr(arg));
-}
-
-static int do_ioctl32_ulong(unsigned int fd, unsigned int cmd,
- unsigned long arg, struct file *f)
-{
- return sys_ioctl(fd, cmd, arg);
-}
-
-#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL((cmd),(ioctl_trans_handler_t)do_ioctl32_pointer)
-#define ULONG_IOCTL(cmd) HANDLE_IOCTL((cmd),(ioctl_trans_handler_t)do_ioctl32_ulong)
-#define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl_trans_handler_t)(handler), NULL },
-
-struct ioctl_trans ioctl_start[] = {
-/* architecture independent ioctls */
-#include <linux/compat_ioctl.h>
-#define DECLARES
-#include "../../../fs/compat_ioctl.c"
-
-/* s390 only ioctls */
-COMPATIBLE_IOCTL(DASDAPIVER)
-COMPATIBLE_IOCTL(BIODASDDISABLE)
-COMPATIBLE_IOCTL(BIODASDENABLE)
-COMPATIBLE_IOCTL(BIODASDRSRV)
-COMPATIBLE_IOCTL(BIODASDRLSE)
-COMPATIBLE_IOCTL(BIODASDSLCK)
-COMPATIBLE_IOCTL(BIODASDINFO)
-COMPATIBLE_IOCTL(BIODASDINFO2)
-COMPATIBLE_IOCTL(BIODASDFMT)
-COMPATIBLE_IOCTL(BIODASDPRRST)
-COMPATIBLE_IOCTL(BIODASDQUIESCE)
-COMPATIBLE_IOCTL(BIODASDRESUME)
-COMPATIBLE_IOCTL(BIODASDPRRD)
-COMPATIBLE_IOCTL(BIODASDPSRD)
-COMPATIBLE_IOCTL(BIODASDGATTR)
-COMPATIBLE_IOCTL(BIODASDSATTR)
-COMPATIBLE_IOCTL(BIODASDCMFENABLE)
-COMPATIBLE_IOCTL(BIODASDCMFDISABLE)
-COMPATIBLE_IOCTL(BIODASDREADALLCMB)
-
-COMPATIBLE_IOCTL(TUBICMD)
-COMPATIBLE_IOCTL(TUBOCMD)
-COMPATIBLE_IOCTL(TUBGETI)
-COMPATIBLE_IOCTL(TUBGETO)
-COMPATIBLE_IOCTL(TUBSETMOD)
-COMPATIBLE_IOCTL(TUBGETMOD)
-
-COMPATIBLE_IOCTL(TAPE390_DISPLAY)
-
-/* s390 doesn't need handlers here */
-COMPATIBLE_IOCTL(TIOCGSERIAL)
-COMPATIBLE_IOCTL(TIOCSSERIAL)
-};
-
-int ioctl_table_size = ARRAY_SIZE(ioctl_start);
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index ed877d0f27e6..bf9a7a361b34 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -55,6 +55,7 @@
#include <linux/syscalls.h>
#include <linux/sysctl.h>
#include <linux/binfmts.h>
+#include <linux/capability.h>
#include <linux/compat.h>
#include <linux/vfs.h>
#include <linux/ptrace.h>
@@ -279,7 +280,7 @@ asmlinkage long sys32_getegid16(void)
static inline long get_tv32(struct timeval *o, struct compat_timeval *i)
{
- return (!access_ok(VERIFY_READ, tv32, sizeof(*tv32)) ||
+ return (!access_ok(VERIFY_READ, o, sizeof(*o)) ||
(__get_user(o->tv_sec, &i->tv_sec) ||
__get_user(o->tv_usec, &i->tv_usec)));
}
@@ -1014,38 +1015,6 @@ asmlinkage long sys32_clone(struct pt_regs regs)
}
/*
- * Wrapper function for sys_timer_create.
- */
-extern asmlinkage long
-sys_timer_create(clockid_t, struct sigevent *, timer_t *);
-
-asmlinkage long
-sys32_timer_create(clockid_t which_clock, struct compat_sigevent *se32,
- timer_t *timer_id)
-{
- struct sigevent se;
- timer_t ktimer_id;
- mm_segment_t old_fs;
- long ret;
-
- if (se32 == NULL)
- return sys_timer_create(which_clock, NULL, timer_id);
-
- if (get_compat_sigevent(&se, se32))
- return -EFAULT;
-
- old_fs = get_fs();
- set_fs(KERNEL_DS);
- ret = sys_timer_create(which_clock, &se, &ktimer_id);
- set_fs(old_fs);
-
- if (!ret)
- ret = put_user (ktimer_id, timer_id);
-
- return ret;
-}
-
-/*
* 31 bit emulation wrapper functions for sys_fadvise64/fadvise64_64.
* These need to rewrite the advise values for POSIX_FADV_{DONTNEED,NOREUSE}
* because the 31 bit values differ from the 64 bit values.
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index 4ff6808456ea..fa2b3bc22f20 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -467,8 +467,6 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
if (err)
goto badframe;
- /* It is more difficult to avoid calling this function than to
- call it and ignore errors. */
set_fs (KERNEL_DS);
do_sigaltstack((stack_t __user *)&st, NULL, regs->gprs[15]);
set_fs (old_fs);
diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S
index 23fe94e58688..cfde1905d07d 100644
--- a/arch/s390/kernel/compat_wrapper.S
+++ b/arch/s390/kernel/compat_wrapper.S
@@ -1289,7 +1289,7 @@ sys32_timer_create_wrapper:
lgfr %r2,%r2 # timer_t (int)
llgtr %r3,%r3 # struct compat_sigevent *
llgtr %r4,%r4 # timer_t *
- jg sys32_timer_create
+ jg compat_sys_timer_create
.globl sys32_timer_settime_wrapper
sys32_timer_settime_wrapper:
diff --git a/arch/s390/kernel/cpcmd.c b/arch/s390/kernel/cpcmd.c
index d47fecb42cc5..4ef44e536b2c 100644
--- a/arch/s390/kernel/cpcmd.c
+++ b/arch/s390/kernel/cpcmd.c
@@ -39,7 +39,7 @@ int __cpcmd(const char *cmd, char *response, int rlen, int *response_code)
if (response != NULL && rlen > 0) {
memset(response, 0, rlen);
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
asm volatile ( "lra 2,0(%2)\n"
"lr 4,%3\n"
"o 4,%6\n"
@@ -55,7 +55,7 @@ int __cpcmd(const char *cmd, char *response, int rlen, int *response_code)
: "a" (cpcmd_buf), "d" (cmdlen),
"a" (response), "d" (rlen), "m" (mask)
: "cc", "2", "3", "4", "5" );
-#else /* CONFIG_ARCH_S390X */
+#else /* CONFIG_64BIT */
asm volatile ( "lrag 2,0(%2)\n"
"lgr 4,%3\n"
"o 4,%6\n"
@@ -73,11 +73,11 @@ int __cpcmd(const char *cmd, char *response, int rlen, int *response_code)
: "a" (cpcmd_buf), "d" (cmdlen),
"a" (response), "d" (rlen), "m" (mask)
: "cc", "2", "3", "4", "5" );
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
EBCASC(response, rlen);
} else {
return_len = 0;
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
asm volatile ( "lra 2,0(%1)\n"
"lr 3,%2\n"
"diag 2,3,0x8\n"
@@ -85,7 +85,7 @@ int __cpcmd(const char *cmd, char *response, int rlen, int *response_code)
: "=d" (return_code)
: "a" (cpcmd_buf), "d" (cmdlen)
: "2", "3" );
-#else /* CONFIG_ARCH_S390X */
+#else /* CONFIG_64BIT */
asm volatile ( "lrag 2,0(%1)\n"
"lgr 3,%2\n"
"sam31\n"
@@ -95,7 +95,7 @@ int __cpcmd(const char *cmd, char *response, int rlen, int *response_code)
: "=d" (return_code)
: "a" (cpcmd_buf), "d" (cmdlen)
: "2", "3" );
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
}
spin_unlock_irqrestore(&cpcmd_lock, flags);
if (response_code != NULL)
@@ -105,7 +105,7 @@ int __cpcmd(const char *cmd, char *response, int rlen, int *response_code)
EXPORT_SYMBOL(__cpcmd);
-#ifdef CONFIG_ARCH_S390X
+#ifdef CONFIG_64BIT
int cpcmd(const char *cmd, char *response, int rlen, int *response_code)
{
char *lowbuf;
@@ -129,4 +129,4 @@ int cpcmd(const char *cmd, char *response, int rlen, int *response_code)
}
EXPORT_SYMBOL(cpcmd);
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
diff --git a/arch/s390/kernel/crash.c b/arch/s390/kernel/crash.c
index 7bd169c58b0c..926cceeae0fa 100644
--- a/arch/s390/kernel/crash.c
+++ b/arch/s390/kernel/crash.c
@@ -10,8 +10,6 @@
#include <linux/threads.h>
#include <linux/kexec.h>
-note_buf_t crash_notes[NR_CPUS];
-
void machine_crash_shutdown(struct pt_regs *regs)
{
}
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 4eb71ffcf484..369ab4413ec7 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -213,7 +213,7 @@ sysc_nr_ok:
mvc SP_ARGS(8,%r15),SP_R7(%r15)
sysc_do_restart:
larl %r10,sys_call_table
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
tm __TI_flags+5(%r9),(_TIF_31BIT>>16) # running in 31 bit mode ?
jno sysc_noemu
larl %r10,sys_call_table_emu # use 31 bit emulation system calls
@@ -361,7 +361,7 @@ sys_clone_glue:
la %r2,SP_PTREGS(%r15) # load pt_regs
jg sys_clone # branch to sys_clone
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
sys32_clone_glue:
la %r2,SP_PTREGS(%r15) # load pt_regs
jg sys32_clone # branch to sys32_clone
@@ -383,7 +383,7 @@ sys_execve_glue:
bnz 0(%r12) # it did fail -> store result in gpr2
b 6(%r12) # SKIP STG 2,SP_R2(15) in
# system_call/sysc_tracesys
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
sys32_execve_glue:
la %r2,SP_PTREGS(%r15) # load pt_regs
lgr %r12,%r14 # save return address
@@ -398,7 +398,7 @@ sys_sigreturn_glue:
la %r2,SP_PTREGS(%r15) # load pt_regs as parameter
jg sys_sigreturn # branch to sys_sigreturn
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
sys32_sigreturn_glue:
la %r2,SP_PTREGS(%r15) # load pt_regs as parameter
jg sys32_sigreturn # branch to sys32_sigreturn
@@ -408,7 +408,7 @@ sys_rt_sigreturn_glue:
la %r2,SP_PTREGS(%r15) # load pt_regs as parameter
jg sys_rt_sigreturn # branch to sys_sigreturn
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
sys32_rt_sigreturn_glue:
la %r2,SP_PTREGS(%r15) # load pt_regs as parameter
jg sys32_rt_sigreturn # branch to sys32_sigreturn
@@ -429,7 +429,7 @@ sys_sigsuspend_glue:
la %r14,6(%r14) # skip store of return value
jg sys_sigsuspend # branch to sys_sigsuspend
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
sys32_sigsuspend_glue:
llgfr %r4,%r4 # unsigned long
lgr %r5,%r4 # move mask back
@@ -449,7 +449,7 @@ sys_rt_sigsuspend_glue:
la %r14,6(%r14) # skip store of return value
jg sys_rt_sigsuspend # branch to sys_rt_sigsuspend
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
sys32_rt_sigsuspend_glue:
llgfr %r3,%r3 # size_t
lgr %r4,%r3 # move sigsetsize parameter
@@ -464,7 +464,7 @@ sys_sigaltstack_glue:
la %r4,SP_PTREGS(%r15) # load pt_regs as parameter
jg sys_sigaltstack # branch to sys_sigreturn
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
sys32_sigaltstack_glue:
la %r4,SP_PTREGS(%r15) # load pt_regs as parameter
jg sys32_sigaltstack_wrapper # branch to sys_sigreturn
@@ -1009,7 +1009,7 @@ sys_call_table:
#include "syscalls.S"
#undef SYSCALL
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
#define SYSCALL(esa,esame,emu) .long emu
.globl sys_call_table_emu
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index d31a97c89f68..ea88d066bf04 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -30,7 +30,7 @@
#include <asm/thread_info.h>
#include <asm/page.h>
-#ifdef CONFIG_ARCH_S390X
+#ifdef CONFIG_64BIT
#define ARCH_OFFSET 4
#else
#define ARCH_OFFSET 0
@@ -539,7 +539,7 @@ ipl_devno:
.word 0
.endm
-#ifdef CONFIG_ARCH_S390X
+#ifdef CONFIG_64BIT
#include "head64.S"
#else
#include "head31.S"
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 5aa71b05b8ae..f0ed5c642c74 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -85,7 +85,7 @@ kexec_halt_all_cpus(void *kernel_image)
pfault_fini();
#endif
- if (atomic_compare_and_swap(-1, smp_processor_id(), &cpuid))
+ if (atomic_cmpxchg(&cpuid, -1, smp_processor_id()) != -1)
signal_processor(smp_processor_id(), sigp_stop);
/* Wait for all other cpus to enter stopped state */
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 607d506689c8..c271cdab58e2 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -37,11 +37,11 @@
#define DEBUGP(fmt , ...)
#endif
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
#define PLT_ENTRY_SIZE 12
-#else /* CONFIG_ARCH_S390X */
+#else /* CONFIG_64BIT */
#define PLT_ENTRY_SIZE 20
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
void *module_alloc(unsigned long size)
{
@@ -294,17 +294,17 @@ apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
unsigned int *ip;
ip = me->module_core + me->arch.plt_offset +
info->plt_offset;
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */
ip[1] = 0x100607f1;
ip[2] = val;
-#else /* CONFIG_ARCH_S390X */
+#else /* CONFIG_64BIT */
ip[0] = 0x0d10e310; /* basr 1,0; lg 1,10(1); br 1 */
ip[1] = 0x100a0004;
ip[2] = 0x07f10000;
ip[3] = (unsigned int) (val >> 32);
ip[4] = (unsigned int) val;
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
info->plt_initialized = 1;
}
if (r_type == R_390_PLTOFF16 ||
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 78b64fe5e7c2..008c74526fd3 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -58,10 +58,18 @@ asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
*/
unsigned long thread_saved_pc(struct task_struct *tsk)
{
- struct stack_frame *sf;
+ struct stack_frame *sf, *low, *high;
- sf = (struct stack_frame *) tsk->thread.ksp;
- sf = (struct stack_frame *) sf->back_chain;
+ if (!tsk || !task_stack_page(tsk))
+ return 0;
+ low = task_stack_page(tsk);
+ high = (struct stack_frame *) task_pt_regs(tsk);
+ sf = (struct stack_frame *) (tsk->thread.ksp & PSW_ADDR_INSN);
+ if (sf <= low || sf > high)
+ return 0;
+ sf = (struct stack_frame *) (sf->back_chain & PSW_ADDR_INSN);
+ if (sf <= low || sf > high)
+ return 0;
return sf->gprs[8];
}
@@ -153,7 +161,7 @@ void show_regs(struct pt_regs *regs)
{
struct task_struct *tsk = current;
- printk("CPU: %d %s\n", tsk->thread_info->cpu, print_tainted());
+ printk("CPU: %d %s\n", task_thread_info(tsk)->cpu, print_tainted());
printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
current->comm, current->pid, (void *) tsk,
(void *) tsk->thread.ksp);
@@ -217,8 +225,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long new_stackp,
struct pt_regs childregs;
} *frame;
- frame = ((struct fake_frame *)
- (THREAD_SIZE + (unsigned long) p->thread_info)) - 1;
+ frame = container_of(task_pt_regs(p), struct fake_frame, childregs);
p->thread.ksp = (unsigned long) frame;
/* Store access registers to kernel stack of new process. */
frame->childregs = *regs;
@@ -235,7 +242,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long new_stackp,
/* Save access registers to new thread structure. */
save_access_regs(&p->thread.acrs[0]);
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
/*
* save fprs to current->thread.fp_regs to merge them with
* the emulated registers and then copy the result to the child.
@@ -247,7 +254,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long new_stackp,
/* Set a new TLS ? */
if (clone_flags & CLONE_SETTLS)
p->thread.acrs[0] = regs->gprs[6];
-#else /* CONFIG_ARCH_S390X */
+#else /* CONFIG_64BIT */
/* Save the fpu registers to new thread structure. */
save_fp_regs(&p->thread.fp_regs);
p->thread.user_seg = __pa((unsigned long) p->mm->pgd) | _REGION_TABLE;
@@ -260,7 +267,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long new_stackp,
p->thread.acrs[1] = (unsigned int) regs->gprs[6];
}
}
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
/* start new process with ar4 pointing to the correct address space */
p->thread.mm_segment = get_fs();
/* Don't copy debug registers */
@@ -339,51 +346,29 @@ out:
*/
int dump_fpu (struct pt_regs * regs, s390_fp_regs *fpregs)
{
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
/*
* save fprs to current->thread.fp_regs to merge them with
* the emulated registers and then copy the result to the dump.
*/
save_fp_regs(&current->thread.fp_regs);
memcpy(fpregs, &current->thread.fp_regs, sizeof(s390_fp_regs));
-#else /* CONFIG_ARCH_S390X */
+#else /* CONFIG_64BIT */
save_fp_regs(fpregs);
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
return 1;
}
-/*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
-
-/* changed the size calculations - should hopefully work better. lbt */
- dump->magic = CMAGIC;
- dump->start_code = 0;
- dump->start_stack = regs->gprs[15] & ~(PAGE_SIZE - 1);
- dump->u_tsize = current->mm->end_code >> PAGE_SHIFT;
- dump->u_dsize = (current->mm->brk + PAGE_SIZE - 1) >> PAGE_SHIFT;
- dump->u_dsize -= dump->u_tsize;
- dump->u_ssize = 0;
- if (dump->start_stack < TASK_SIZE)
- dump->u_ssize = (TASK_SIZE - dump->start_stack) >> PAGE_SHIFT;
- memcpy(&dump->regs, regs, sizeof(s390_regs));
- dump_fpu (regs, &dump->regs.fp_regs);
- dump->regs.per_info = current->thread.per_info;
-}
-
unsigned long get_wchan(struct task_struct *p)
{
struct stack_frame *sf, *low, *high;
unsigned long return_address;
int count;
- if (!p || p == current || p->state == TASK_RUNNING || !p->thread_info)
+ if (!p || p == current || p->state == TASK_RUNNING || !task_stack_page(p))
return 0;
- low = (struct stack_frame *) p->thread_info;
- high = (struct stack_frame *)
- ((unsigned long) p->thread_info + THREAD_SIZE) - 1;
+ low = task_stack_page(p);
+ high = (struct stack_frame *) task_pt_regs(p);
sf = (struct stack_frame *) (p->thread.ksp & PSW_ADDR_INSN);
if (sf <= low || sf > high)
return 0;
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 06afa3103ace..37dfe33dab73 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -42,7 +42,7 @@
#include <asm/uaccess.h>
#include <asm/unistd.h>
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
#include "compat_ptrace.h"
#endif
@@ -52,14 +52,14 @@ FixPerRegisters(struct task_struct *task)
struct pt_regs *regs;
per_struct *per_info;
- regs = __KSTK_PTREGS(task);
+ regs = task_pt_regs(task);
per_info = (per_struct *) &task->thread.per_info;
per_info->control_regs.bits.em_instruction_fetch =
per_info->single_step | per_info->instruction_fetch;
if (per_info->single_step) {
per_info->control_regs.bits.starting_addr = 0;
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
if (test_thread_flag(TIF_31BIT))
per_info->control_regs.bits.ending_addr = 0x7fffffffUL;
else
@@ -112,7 +112,7 @@ ptrace_disable(struct task_struct *child)
clear_single_step(child);
}
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
# define __ADDR_MASK 3
#else
# define __ADDR_MASK 7
@@ -138,7 +138,7 @@ peek_user(struct task_struct *child, addr_t addr, addr_t data)
* an alignment of 4. Programmers from hell...
*/
mask = __ADDR_MASK;
-#ifdef CONFIG_ARCH_S390X
+#ifdef CONFIG_64BIT
if (addr >= (addr_t) &dummy->regs.acrs &&
addr < (addr_t) &dummy->regs.orig_gpr2)
mask = 3;
@@ -150,7 +150,7 @@ peek_user(struct task_struct *child, addr_t addr, addr_t data)
/*
* psw and gprs are stored on the stack
*/
- tmp = *(addr_t *)((addr_t) &__KSTK_PTREGS(child)->psw + addr);
+ tmp = *(addr_t *)((addr_t) &task_pt_regs(child)->psw + addr);
if (addr == (addr_t) &dummy->regs.psw.mask)
/* Remove per bit from user psw. */
tmp &= ~PSW_MASK_PER;
@@ -160,7 +160,7 @@ peek_user(struct task_struct *child, addr_t addr, addr_t data)
* access registers are stored in the thread structure
*/
offset = addr - (addr_t) &dummy->regs.acrs;
-#ifdef CONFIG_ARCH_S390X
+#ifdef CONFIG_64BIT
/*
* Very special case: old & broken 64 bit gdb reading
* from acrs[15]. Result is a 64 bit value. Read the
@@ -176,7 +176,7 @@ peek_user(struct task_struct *child, addr_t addr, addr_t data)
/*
* orig_gpr2 is stored on the kernel stack
*/
- tmp = (addr_t) __KSTK_PTREGS(child)->orig_gpr2;
+ tmp = (addr_t) task_pt_regs(child)->orig_gpr2;
} else if (addr < (addr_t) (&dummy->regs.fp_regs + 1)) {
/*
@@ -218,7 +218,7 @@ poke_user(struct task_struct *child, addr_t addr, addr_t data)
* an alignment of 4. Programmers from hell indeed...
*/
mask = __ADDR_MASK;
-#ifdef CONFIG_ARCH_S390X
+#ifdef CONFIG_64BIT
if (addr >= (addr_t) &dummy->regs.acrs &&
addr < (addr_t) &dummy->regs.orig_gpr2)
mask = 3;
@@ -231,26 +231,26 @@ poke_user(struct task_struct *child, addr_t addr, addr_t data)
* psw and gprs are stored on the stack
*/
if (addr == (addr_t) &dummy->regs.psw.mask &&
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
data != PSW_MASK_MERGE(PSW_USER32_BITS, data) &&
#endif
data != PSW_MASK_MERGE(PSW_USER_BITS, data))
/* Invalid psw mask. */
return -EINVAL;
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
if (addr == (addr_t) &dummy->regs.psw.addr)
/* I'd like to reject addresses without the
high order bit but older gdb's rely on it */
data |= PSW_ADDR_AMODE;
#endif
- *(addr_t *)((addr_t) &__KSTK_PTREGS(child)->psw + addr) = data;
+ *(addr_t *)((addr_t) &task_pt_regs(child)->psw + addr) = data;
} else if (addr < (addr_t) (&dummy->regs.orig_gpr2)) {
/*
* access registers are stored in the thread structure
*/
offset = addr - (addr_t) &dummy->regs.acrs;
-#ifdef CONFIG_ARCH_S390X
+#ifdef CONFIG_64BIT
/*
* Very special case: old & broken 64 bit gdb writing
* to acrs[15] with a 64 bit value. Ignore the lower
@@ -267,7 +267,7 @@ poke_user(struct task_struct *child, addr_t addr, addr_t data)
/*
* orig_gpr2 is stored on the kernel stack
*/
- __KSTK_PTREGS(child)->orig_gpr2 = data;
+ task_pt_regs(child)->orig_gpr2 = data;
} else if (addr < (addr_t) (&dummy->regs.fp_regs + 1)) {
/*
@@ -357,7 +357,7 @@ do_ptrace_normal(struct task_struct *child, long request, long addr, long data)
return ptrace_request(child, request, addr, data);
}
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
/*
* Now the fun part starts... a 31 bit program running in the
* 31 bit emulation tracing another program. PTRACE_PEEKTEXT,
@@ -393,15 +393,15 @@ peek_user_emu31(struct task_struct *child, addr_t addr, addr_t data)
*/
if (addr == (addr_t) &dummy32->regs.psw.mask) {
/* Fake a 31 bit psw mask. */
- tmp = (__u32)(__KSTK_PTREGS(child)->psw.mask >> 32);
+ tmp = (__u32)(task_pt_regs(child)->psw.mask >> 32);
tmp = PSW32_MASK_MERGE(PSW32_USER_BITS, tmp);
} else if (addr == (addr_t) &dummy32->regs.psw.addr) {
/* Fake a 31 bit psw address. */
- tmp = (__u32) __KSTK_PTREGS(child)->psw.addr |
+ tmp = (__u32) task_pt_regs(child)->psw.addr |
PSW32_ADDR_AMODE31;
} else {
/* gpr 0-15 */
- tmp = *(__u32 *)((addr_t) &__KSTK_PTREGS(child)->psw +
+ tmp = *(__u32 *)((addr_t) &task_pt_regs(child)->psw +
addr*2 + 4);
}
} else if (addr < (addr_t) (&dummy32->regs.orig_gpr2)) {
@@ -415,7 +415,7 @@ peek_user_emu31(struct task_struct *child, addr_t addr, addr_t data)
/*
* orig_gpr2 is stored on the kernel stack
*/
- tmp = *(__u32*)((addr_t) &__KSTK_PTREGS(child)->orig_gpr2 + 4);
+ tmp = *(__u32*)((addr_t) &task_pt_regs(child)->orig_gpr2 + 4);
} else if (addr < (addr_t) (&dummy32->regs.fp_regs + 1)) {
/*
@@ -472,15 +472,15 @@ poke_user_emu31(struct task_struct *child, addr_t addr, addr_t data)
if (tmp != PSW32_MASK_MERGE(PSW32_USER_BITS, tmp))
/* Invalid psw mask. */
return -EINVAL;
- __KSTK_PTREGS(child)->psw.mask =
+ task_pt_regs(child)->psw.mask =
PSW_MASK_MERGE(PSW_USER32_BITS, (__u64) tmp << 32);
} else if (addr == (addr_t) &dummy32->regs.psw.addr) {
/* Build a 64 bit psw address from 31 bit address. */
- __KSTK_PTREGS(child)->psw.addr =
+ task_pt_regs(child)->psw.addr =
(__u64) tmp & PSW32_ADDR_INSN;
} else {
/* gpr 0-15 */
- *(__u32*)((addr_t) &__KSTK_PTREGS(child)->psw
+ *(__u32*)((addr_t) &task_pt_regs(child)->psw
+ addr*2 + 4) = tmp;
}
} else if (addr < (addr_t) (&dummy32->regs.orig_gpr2)) {
@@ -494,7 +494,7 @@ poke_user_emu31(struct task_struct *child, addr_t addr, addr_t data)
/*
* orig_gpr2 is stored on the kernel stack
*/
- *(__u32*)((addr_t) &__KSTK_PTREGS(child)->orig_gpr2 + 4) = tmp;
+ *(__u32*)((addr_t) &task_pt_regs(child)->orig_gpr2 + 4) = tmp;
} else if (addr < (addr_t) (&dummy32->regs.fp_regs + 1)) {
/*
@@ -629,7 +629,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data)
return peek_user(child, addr, data);
if (request == PTRACE_POKEUSR && addr == PT_IEEE_IP)
return poke_user(child, addr, data);
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
if (request == PTRACE_PEEKUSR &&
addr == PT32_IEEE_IP && test_thread_flag(TIF_31BIT))
return peek_user_emu31(child, addr, data);
@@ -695,7 +695,7 @@ do_ptrace(struct task_struct *child, long request, long addr, long data)
/* Do requests that differ for 31/64 bit */
default:
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
if (test_thread_flag(TIF_31BIT))
return do_ptrace_emu31(child, request, addr, data);
#endif
@@ -712,35 +712,18 @@ sys_ptrace(long request, long pid, long addr, long data)
int ret;
lock_kernel();
-
if (request == PTRACE_TRACEME) {
- /* are we already being traced? */
- ret = -EPERM;
- if (current->ptrace & PT_PTRACED)
- goto out;
- ret = security_ptrace(current->parent, current);
- if (ret)
- goto out;
- /* set the ptrace bit in the process flags. */
- current->ptrace |= PT_PTRACED;
- goto out;
+ ret = ptrace_traceme();
+ goto out;
}
- ret = -EPERM;
- if (pid == 1) /* you may not mess with init */
- goto out;
-
- ret = -ESRCH;
- read_lock(&tasklist_lock);
- child = find_task_by_pid(pid);
- if (child)
- get_task_struct(child);
- read_unlock(&tasklist_lock);
- if (!child)
+ child = ptrace_get_task_struct(pid);
+ if (IS_ERR(child)) {
+ ret = PTR_ERR(child);
goto out;
+ }
ret = do_ptrace(child, request, addr, data);
-
put_task_struct(child);
out:
unlock_kernel();
diff --git a/arch/s390/kernel/reipl_diag.c b/arch/s390/kernel/reipl_diag.c
index 83cb42bc0b76..1f33951ba439 100644
--- a/arch/s390/kernel/reipl_diag.c
+++ b/arch/s390/kernel/reipl_diag.c
@@ -26,7 +26,7 @@ void reipl_diag(void)
" st %%r4,%0\n"
" st %%r5,%1\n"
".section __ex_table,\"a\"\n"
-#ifdef __s390x__
+#ifdef CONFIG_64BIT
" .align 8\n"
" .quad 0b, 0b\n"
#else
diff --git a/arch/s390/kernel/s390_ksyms.c b/arch/s390/kernel/s390_ksyms.c
index bee654abb6d3..4176c77670c4 100644
--- a/arch/s390/kernel/s390_ksyms.c
+++ b/arch/s390/kernel/s390_ksyms.c
@@ -10,7 +10,6 @@
#include <linux/smp.h>
#include <linux/syscalls.h>
#include <linux/interrupt.h>
-#include <linux/ioctl32.h>
#include <asm/checksum.h>
#include <asm/cpcmd.h>
#include <asm/delay.h>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 31e7b19348b7..de8784267473 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -268,7 +268,7 @@ static void do_machine_restart_nonsmp(char * __unused)
reipl_diag();
if (MACHINE_IS_VM)
- cpcmd ("IPL", NULL, 0);
+ cpcmd ("IPL", NULL, 0, NULL);
else
reipl (0x10000 | S390_lowcore.ipl_device);
}
@@ -276,14 +276,14 @@ static void do_machine_restart_nonsmp(char * __unused)
static void do_machine_halt_nonsmp(void)
{
if (MACHINE_IS_VM && strlen(vmhalt_cmd) > 0)
- cpcmd(vmhalt_cmd, NULL, 0);
+ cpcmd(vmhalt_cmd, NULL, 0, NULL);
signal_processor(smp_processor_id(), sigp_stop_and_store_status);
}
static void do_machine_power_off_nonsmp(void)
{
if (MACHINE_IS_VM && strlen(vmpoff_cmd) > 0)
- cpcmd(vmpoff_cmd, NULL, 0);
+ cpcmd(vmpoff_cmd, NULL, 0, NULL);
signal_processor(smp_processor_id(), sigp_stop_and_store_status);
}
@@ -315,6 +315,11 @@ void machine_power_off(void)
_machine_power_off();
}
+/*
+ * Dummy power off function.
+ */
+void (*pm_power_off)(void) = machine_power_off;
+
static void __init
add_memory_hole(unsigned long start, unsigned long end)
{
@@ -427,7 +432,7 @@ setup_lowcore(void)
__alloc_bootmem(PAGE_SIZE, PAGE_SIZE, 0) + PAGE_SIZE;
lc->current_task = (unsigned long) init_thread_union.thread_info.task;
lc->thread_info = (unsigned long) &init_thread_union;
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
if (MACHINE_HAS_IEEE) {
lc->extended_save_area_addr = (__u32)
__alloc_bootmem(PAGE_SIZE, PAGE_SIZE, 0);
@@ -562,21 +567,21 @@ setup_arch(char **cmdline_p)
/*
* print what head.S has found out about the machine
*/
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
printk((MACHINE_IS_VM) ?
"We are running under VM (31 bit mode)\n" :
"We are running native (31 bit mode)\n");
printk((MACHINE_HAS_IEEE) ?
"This machine has an IEEE fpu\n" :
"This machine has no IEEE fpu\n");
-#else /* CONFIG_ARCH_S390X */
+#else /* CONFIG_64BIT */
printk((MACHINE_IS_VM) ?
"We are running under VM (64 bit mode)\n" :
"We are running native (64 bit mode)\n");
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
ROOT_DEV = Root_RAM0;
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
memory_end = memory_size & ~0x400000UL; /* align memory end to 4MB */
/*
* We need some free virtual space to be able to do vmalloc.
@@ -585,9 +590,9 @@ setup_arch(char **cmdline_p)
*/
if (memory_end > 1920*1024*1024)
memory_end = 1920*1024*1024;
-#else /* CONFIG_ARCH_S390X */
+#else /* CONFIG_64BIT */
memory_end = memory_size & ~0x200000UL; /* detected in head.s */
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
init_mm.start_code = PAGE_OFFSET;
init_mm.end_code = (unsigned long) &_etext;
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 6e0110d71191..6ae4a77270b5 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -254,9 +254,9 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
if (restore_sigregs(regs, &frame->uc.uc_mcontext))
goto badframe;
- /* It is more difficult to avoid calling this function than to
- call it and ignore errors. */
- do_sigaltstack(&frame->uc.uc_stack, NULL, regs->gprs[15]);
+ if (do_sigaltstack(&frame->uc.uc_stack, NULL,
+ regs->gprs[15]) == -EFAULT)
+ goto badframe;
return regs->gprs[2];
badframe:
@@ -501,7 +501,7 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset)
if (signr > 0) {
/* Whee! Actually deliver the signal. */
-#ifdef CONFIG_S390_SUPPORT
+#ifdef CONFIG_COMPAT
if (test_thread_flag(TIF_31BIT)) {
extern void handle_signal32(unsigned long sig,
struct k_sigaction *ka,
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 5856b3fda6bf..cbfcfd02a43a 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -263,7 +263,7 @@ static void do_machine_restart(void * __unused)
int cpu;
static atomic_t cpuid = ATOMIC_INIT(-1);
- if (atomic_compare_and_swap(-1, smp_processor_id(), &cpuid))
+ if (atomic_cmpxchg(&cpuid, -1, smp_processor_id()) != -1)
signal_processor(smp_processor_id(), sigp_stop);
/* Wait for all other cpus to enter stopped state */
@@ -313,7 +313,7 @@ static void do_machine_halt(void * __unused)
{
static atomic_t cpuid = ATOMIC_INIT(-1);
- if (atomic_compare_and_swap(-1, smp_processor_id(), &cpuid) == 0) {
+ if (atomic_cmpxchg(&cpuid, -1, smp_processor_id()) == -1) {
smp_send_stop();
if (MACHINE_IS_VM && strlen(vmhalt_cmd) > 0)
cpcmd(vmhalt_cmd, NULL, 0, NULL);
@@ -332,7 +332,7 @@ static void do_machine_power_off(void * __unused)
{
static atomic_t cpuid = ATOMIC_INIT(-1);
- if (atomic_compare_and_swap(-1, smp_processor_id(), &cpuid) == 0) {
+ if (atomic_cmpxchg(&cpuid, -1, smp_processor_id()) == -1) {
smp_send_stop();
if (MACHINE_IS_VM && strlen(vmpoff_cmd) > 0)
cpcmd(vmpoff_cmd, NULL, 0, NULL);
@@ -402,7 +402,7 @@ static void smp_ext_bitcall_others(ec_bit_sig sig)
}
}
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
/*
* this function sends a 'purge tlb' signal to another CPU.
*/
@@ -416,7 +416,7 @@ void smp_ptlb_all(void)
on_each_cpu(smp_ptlb_callback, NULL, 0, 1);
}
EXPORT_SYMBOL(smp_ptlb_all);
-#endif /* ! CONFIG_ARCH_S390X */
+#endif /* ! CONFIG_64BIT */
/*
* this function sends a 'reschedule' IPI to another CPU.
@@ -657,7 +657,7 @@ __cpu_up(unsigned int cpu)
idle = current_set[cpu];
cpu_lowcore = lowcore_ptr[cpu];
cpu_lowcore->kernel_stack = (unsigned long)
- idle->thread_info + (THREAD_SIZE);
+ task_stack_page(idle) + (THREAD_SIZE);
sf = (struct stack_frame *) (cpu_lowcore->kernel_stack
- sizeof(struct pt_regs)
- sizeof(struct stack_frame));
@@ -783,7 +783,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
if (stack == 0ULL)
panic("smp_boot_cpus failed to allocate memory\n");
lowcore_ptr[i]->panic_stack = stack + (PAGE_SIZE);
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
if (MACHINE_HAS_IEEE) {
lowcore_ptr[i]->extended_save_area_addr =
(__u32) __get_free_pages(GFP_KERNEL,0);
@@ -793,7 +793,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
}
#endif
}
-#ifndef __s390x__
+#ifndef CONFIG_64BIT
if (MACHINE_HAS_IEEE)
ctl_set_bit(14, 29); /* enable extended save area */
#endif
diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c
index efe6b83b53f7..6a63553493c5 100644
--- a/arch/s390/kernel/sys_s390.c
+++ b/arch/s390/kernel/sys_s390.c
@@ -26,9 +26,7 @@
#include <linux/mman.h>
#include <linux/file.h>
#include <linux/utsname.h>
-#ifdef CONFIG_ARCH_S390X
#include <linux/personality.h>
-#endif /* CONFIG_ARCH_S390X */
#include <asm/uaccess.h>
#include <asm/ipc.h>
@@ -121,7 +119,7 @@ out:
return error;
}
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
struct sel_arg_struct {
unsigned long n;
fd_set *inp, *outp, *exp;
@@ -138,7 +136,7 @@ asmlinkage long old_select(struct sel_arg_struct __user *arg)
return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
}
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls..
@@ -211,7 +209,7 @@ asmlinkage long sys_ipc(uint call, int first, unsigned long second,
return -EINVAL;
}
-#ifdef CONFIG_ARCH_S390X
+#ifdef CONFIG_64BIT
asmlinkage long s390x_newuname(struct new_utsname __user *name)
{
int ret = sys_newuname(name);
@@ -235,12 +233,12 @@ asmlinkage long s390x_personality(unsigned long personality)
return ret;
}
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
/*
* Wrapper function for sys_fadvise64/fadvise64_64
*/
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
asmlinkage long
s390_fadvise64(int fd, u32 offset_high, u32 offset_low, size_t len, int advice)
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index c36353e8c140..7c0fe152a111 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -214,7 +214,7 @@ void account_ticks(struct pt_regs *regs)
#endif
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
- account_user_vtime(current);
+ account_tick_vtime(current);
#else
while (ticks--)
update_process_times(user_mode(regs));
@@ -282,7 +282,7 @@ static inline void start_hz_timer(void)
{
if (!cpu_isset(smp_processor_id(), nohz_cpu_mask))
return;
- account_ticks(__KSTK_PTREGS(current));
+ account_ticks(task_pt_regs(current));
cpu_clear(smp_processor_id(), nohz_cpu_mask);
}
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index c5bd36fae56b..5d21e9e6e7b4 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -67,13 +67,13 @@ extern pgm_check_handler_t do_monitor_call;
#define stack_pointer ({ void **sp; asm("la %0,0(15)" : "=&d" (sp)); sp; })
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
#define FOURLONG "%08lx %08lx %08lx %08lx\n"
static int kstack_depth_to_print = 12;
-#else /* CONFIG_ARCH_S390X */
+#else /* CONFIG_64BIT */
#define FOURLONG "%016lx %016lx %016lx %016lx\n"
static int kstack_depth_to_print = 20;
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
/*
* For show_trace we have tree different stack to consider:
@@ -136,8 +136,8 @@ void show_trace(struct task_struct *task, unsigned long * stack)
sp = __show_trace(sp, S390_lowcore.async_stack - ASYNC_SIZE,
S390_lowcore.async_stack);
if (task)
- __show_trace(sp, (unsigned long) task->thread_info,
- (unsigned long) task->thread_info + THREAD_SIZE);
+ __show_trace(sp, (unsigned long) task_stack_page(task),
+ (unsigned long) task_stack_page(task) + THREAD_SIZE);
else
__show_trace(sp, S390_lowcore.thread_info,
S390_lowcore.thread_info + THREAD_SIZE);
@@ -240,7 +240,7 @@ char *task_show_regs(struct task_struct *task, char *buffer)
{
struct pt_regs *regs;
- regs = __KSTK_PTREGS(task);
+ regs = task_pt_regs(task);
buffer += sprintf(buffer, "task: %p, ksp: %p\n",
task, (void *)task->thread.ksp);
buffer += sprintf(buffer, "User PSW : %p %p\n",
@@ -702,12 +702,12 @@ void __init trap_init(void)
pgm_check_table[0x11] = &do_dat_exception;
pgm_check_table[0x12] = &translation_exception;
pgm_check_table[0x13] = &special_op_exception;
-#ifdef CONFIG_ARCH_S390X
+#ifdef CONFIG_64BIT
pgm_check_table[0x38] = &do_dat_exception;
pgm_check_table[0x39] = &do_dat_exception;
pgm_check_table[0x3A] = &do_dat_exception;
pgm_check_table[0x3B] = &do_dat_exception;
-#endif /* CONFIG_ARCH_S390X */
+#endif /* CONFIG_64BIT */
pgm_check_table[0x15] = &operand_exception;
pgm_check_table[0x1C] = &space_switch_exception;
pgm_check_table[0x1D] = &hfp_sqrt_exception;
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 89fdb3808bc0..9289face3027 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -5,7 +5,7 @@
#include <asm-generic/vmlinux.lds.h>
#include <linux/config.h>
-#ifndef CONFIG_ARCH_S390X
+#ifndef CONFIG_64BIT
OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
OUTPUT_ARCH(s390)
ENTRY(_start)
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index 22a895ecb7a4..dfe6f0856617 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -32,7 +32,7 @@ DEFINE_PER_CPU(struct vtimer_queue, virt_cpu_timer);
* Update process times based on virtual cpu times stored by entry.S
* to the lowcore fields user_timer, system_timer & steal_clock.
*/
-void account_user_vtime(struct task_struct *tsk)
+void account_tick_vtime(struct task_struct *tsk)
{
cputime_t cputime;
__u64 timer, clock;
@@ -76,6 +76,31 @@ void account_user_vtime(struct task_struct *tsk)
* Update process times based on virtual cpu times stored by entry.S
* to the lowcore fields user_timer, system_timer & steal_clock.
*/
+void account_vtime(struct task_struct *tsk)
+{
+ cputime_t cputime;
+ __u64 timer;
+
+ timer = S390_lowcore.last_update_timer;
+ asm volatile (" STPT %0" /* Store current cpu timer value */
+ : "=m" (S390_lowcore.last_update_timer) );
+ S390_lowcore.system_timer += timer - S390_lowcore.last_update_timer;
+
+ cputime = S390_lowcore.user_timer >> 12;
+ S390_lowcore.user_timer -= cputime << 12;
+ S390_lowcore.steal_clock -= cputime << 12;
+ account_user_time(tsk, cputime);
+
+ cputime = S390_lowcore.system_timer >> 12;
+ S390_lowcore.system_timer -= cputime << 12;
+ S390_lowcore.steal_clock -= cputime << 12;
+ account_system_time(tsk, 0, cputime);
+}
+
+/*
+ * Update process times based on virtual cpu times stored by entry.S
+ * to the lowcore fields user_timer, system_timer & steal_clock.
+ */
void account_system_vtime(struct task_struct *tsk)
{
cputime_t cputime;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.