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-rw-r--r--arch/sh/Kconfig4
-rw-r--r--arch/sh/kernel/process.c66
-rw-r--r--arch/sh/kernel/ptrace.c14
-rw-r--r--arch/sh/kernel/sh_ksyms.c2
-rw-r--r--arch/sh/kernel/smp.c2
5 files changed, 11 insertions, 77 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 64f5ae0ff96..8cf6d437a63 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -14,10 +14,6 @@ config SUPERH
gaming console. The SuperH port has a home page at
<http://www.linux-sh.org/>.
-config UID16
- bool
- default y
-
config RWSEM_GENERIC_SPINLOCK
bool
default y
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index fd4f240b833..aac15e42d03 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -191,13 +191,8 @@ void flush_thread(void)
{
#if defined(CONFIG_SH_FPU)
struct task_struct *tsk = current;
- struct pt_regs *regs = (struct pt_regs *)
- ((unsigned long)tsk->thread_info
- + THREAD_SIZE - sizeof(struct pt_regs)
- - sizeof(unsigned long));
-
/* Forget lazy FPU state */
- clear_fpu(tsk, regs);
+ clear_fpu(tsk, task_pt_regs(tsk));
clear_used_math();
#endif
}
@@ -232,13 +227,7 @@ int dump_task_regs(struct task_struct *tsk, elf_gregset_t *regs)
{
struct pt_regs ptregs;
- ptregs = *(struct pt_regs *)
- ((unsigned long)tsk->thread_info + THREAD_SIZE
- - sizeof(struct pt_regs)
-#ifdef CONFIG_SH_DSP
- - sizeof(struct pt_dspregs)
-#endif
- - sizeof(unsigned long));
+ ptregs = *task_pt_regs(tsk);
elf_core_copy_regs(regs, &ptregs);
return 1;
@@ -252,11 +241,7 @@ dump_task_fpu (struct task_struct *tsk, elf_fpregset_t *fpu)
#if defined(CONFIG_SH_FPU)
fpvalid = !!tsk_used_math(tsk);
if (fpvalid) {
- struct pt_regs *regs = (struct pt_regs *)
- ((unsigned long)tsk->thread_info
- + THREAD_SIZE - sizeof(struct pt_regs)
- - sizeof(unsigned long));
- unlazy_fpu(tsk, regs);
+ unlazy_fpu(tsk, task_pt_regs(tsk));
memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
}
#endif
@@ -279,18 +264,13 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
copy_to_stopped_child_used_math(p);
#endif
- childregs = ((struct pt_regs *)
- (THREAD_SIZE + (unsigned long) p->thread_info)
-#ifdef CONFIG_SH_DSP
- - sizeof(struct pt_dspregs)
-#endif
- - sizeof(unsigned long)) - 1;
+ childregs = task_pt_regs(p);
*childregs = *regs;
if (user_mode(regs)) {
childregs->regs[15] = usp;
} else {
- childregs->regs[15] = (unsigned long)p->thread_info + THREAD_SIZE;
+ childregs->regs[15] = (unsigned long)task_stack_page(p) + THREAD_SIZE;
}
if (clone_flags & CLONE_SETTLS) {
childregs->gbr = childregs->regs[0];
@@ -305,26 +285,6 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
return 0;
}
-/*
- * fill in the user structure for a core dump..
- */
-void dump_thread(struct pt_regs * regs, struct user * dump)
-{
- dump->magic = CMAGIC;
- dump->start_code = current->mm->start_code;
- dump->start_data = current->mm->start_data;
- dump->start_stack = regs->regs[15] & ~(PAGE_SIZE - 1);
- dump->u_tsize = (current->mm->end_code - dump->start_code) >> PAGE_SHIFT;
- dump->u_dsize = (current->mm->brk + (PAGE_SIZE-1) - dump->start_data) >> PAGE_SHIFT;
- dump->u_ssize = (current->mm->start_stack - dump->start_stack +
- PAGE_SIZE - 1) >> PAGE_SHIFT;
- /* Debug registers will come here. */
-
- dump->regs = *regs;
-
- dump->u_fpvalid = dump_fpu(regs, &dump->fpu);
-}
-
/* Tracing by user break controller. */
static void
ubc_set_tracing(int asid, unsigned long pc)
@@ -353,11 +313,7 @@ ubc_set_tracing(int asid, unsigned long pc)
struct task_struct *__switch_to(struct task_struct *prev, struct task_struct *next)
{
#if defined(CONFIG_SH_FPU)
- struct pt_regs *regs = (struct pt_regs *)
- ((unsigned long)prev->thread_info
- + THREAD_SIZE - sizeof(struct pt_regs)
- - sizeof(unsigned long));
- unlazy_fpu(prev, regs);
+ unlazy_fpu(prev, task_pt_regs(prev));
#endif
#ifdef CONFIG_PREEMPT
@@ -366,13 +322,7 @@ struct task_struct *__switch_to(struct task_struct *prev, struct task_struct *ne
struct pt_regs *regs;
local_irq_save(flags);
- regs = (struct pt_regs *)
- ((unsigned long)prev->thread_info
- + THREAD_SIZE - sizeof(struct pt_regs)
-#ifdef CONFIG_SH_DSP
- - sizeof(struct pt_dspregs)
-#endif
- - sizeof(unsigned long));
+ regs = task_pt_regs(prev);
if (user_mode(regs) && regs->regs[15] >= 0xc0000000) {
int offset = (int)regs->regs[15];
@@ -392,7 +342,7 @@ struct task_struct *__switch_to(struct task_struct *prev, struct task_struct *ne
*/
asm volatile("ldc %0, r7_bank"
: /* no output */
- : "r" (next->thread_info));
+ : "r" (task_thread_info(next)));
#ifdef CONFIG_MMU
/* If no tasks are using the UBC, we're done */
diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c
index 1a8be06519e..3887b4f6feb 100644
--- a/arch/sh/kernel/ptrace.c
+++ b/arch/sh/kernel/ptrace.c
@@ -41,12 +41,7 @@ static inline int get_stack_long(struct task_struct *task, int offset)
{
unsigned char *stack;
- stack = (unsigned char *)
- task->thread_info + THREAD_SIZE - sizeof(struct pt_regs)
-#ifdef CONFIG_SH_DSP
- - sizeof(struct pt_dspregs)
-#endif
- - sizeof(unsigned long);
+ stack = (unsigned char *)task_pt_regs(task);
stack += offset;
return (*((int *)stack));
}
@@ -59,12 +54,7 @@ static inline int put_stack_long(struct task_struct *task, int offset,
{
unsigned char *stack;
- stack = (unsigned char *)
- task->thread_info + THREAD_SIZE - sizeof(struct pt_regs)
-#ifdef CONFIG_SH_DSP
- - sizeof(struct pt_dspregs)
-#endif
- - sizeof(unsigned long);
+ stack = (unsigned char *)task_pt_regs(task);
stack += offset;
*(unsigned long *) stack = data;
return 0;
diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c
index 6954fd62470..1cf94a618be 100644
--- a/arch/sh/kernel/sh_ksyms.c
+++ b/arch/sh/kernel/sh_ksyms.c
@@ -21,14 +21,12 @@
#include <asm/cacheflush.h>
#include <asm/checksum.h>
-extern void dump_thread(struct pt_regs *, struct user *);
extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
extern struct hw_interrupt_type no_irq_type;
EXPORT_SYMBOL(sh_mv);
/* platform dependent support */
-EXPORT_SYMBOL(dump_thread);
EXPORT_SYMBOL(dump_fpu);
EXPORT_SYMBOL(iounmap);
EXPORT_SYMBOL(enable_irq);
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 59e49b18252..62c7d1c0ad7 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -103,7 +103,7 @@ int __cpu_up(unsigned int cpu)
if (IS_ERR(tsk))
panic("Failed forking idle task for cpu %d\n", cpu);
- tsk->thread_info->cpu = cpu;
+ task_thread_info(tsk)->cpu = cpu;
cpu_set(cpu, cpu_online_map);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-03-09 01:01:34 +0000