Merge branch 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...

[linux-2.6-omap-h63xx.git] / arch / alpha / kernel / process.c

diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index a8682612abc0d8ce46c1979a48b4b6d78f31b7b0..9924fd07743abfd5bb4cda9e78ac3e58ca72a9d7 100644 (file)
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -43,6 +43,11 @@
 #include "proto.h"
 #include "pci_impl.h"
 
+/*
+ * Power off function, if any
+ */
+void (*pm_power_off)(void) = machine_power_off;
+
 void
 cpu_idle(void)
 {
@@ -271,7 +276,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 {
        extern void ret_from_fork(void);
 
-       struct thread_info *childti = p->thread_info;
+       struct thread_info *childti = task_thread_info(p);
        struct pt_regs * childregs;
        struct switch_stack * childstack, *stack;
        unsigned long stack_offset, settls;
@@ -280,7 +285,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
        if (!(regs->ps & 8))
                stack_offset = (PAGE_SIZE-1) & (unsigned long) regs;
        childregs = (struct pt_regs *)
-         (stack_offset + PAGE_SIZE + (long) childti);
+         (stack_offset + PAGE_SIZE + task_stack_page(p));
                
        *childregs = *regs;
        settls = regs->r20;
@@ -423,30 +428,15 @@ dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt, struct thread_info *ti)
 int
 dump_elf_task(elf_greg_t *dest, struct task_struct *task)
 {
-       struct thread_info *ti;
-       struct pt_regs *pt;
-
-       ti = task->thread_info;
-       pt = (struct pt_regs *)((unsigned long)ti + 2*PAGE_SIZE) - 1;
-
-       dump_elf_thread(dest, pt, ti);
-
+       dump_elf_thread(dest, task_pt_regs(task), task_thread_info(task));
        return 1;
 }
 
 int
 dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task)
 {
-       struct thread_info *ti;
-       struct pt_regs *pt;
-       struct switch_stack *sw;
-
-       ti = task->thread_info;
-       pt = (struct pt_regs *)((unsigned long)ti + 2*PAGE_SIZE) - 1;
-       sw = (struct switch_stack *)pt - 1;
-
+       struct switch_stack *sw = (struct switch_stack *)task_pt_regs(task) - 1;
        memcpy(dest, sw->fp, 32 * 8);
-
        return 1;
 }
 
@@ -487,8 +477,8 @@ out:
 unsigned long
 thread_saved_pc(task_t *t)
 {
-       unsigned long base = (unsigned long)t->thread_info;
-       unsigned long fp, sp = t->thread_info->pcb.ksp;
+       unsigned long base = (unsigned long)task_stack_page(t);
+       unsigned long fp, sp = task_thread_info(t)->pcb.ksp;
 
        if (sp > base && sp+6*8 < base + 16*1024) {
                fp = ((unsigned long*)sp)[6];
@@ -518,7 +508,7 @@ get_wchan(struct task_struct *p)
 
        pc = thread_saved_pc(p);
        if (in_sched_functions(pc)) {
-               schedule_frame = ((unsigned long *)p->thread_info->pcb.ksp)[6];
+               schedule_frame = ((unsigned long *)task_thread_info(p)->pcb.ksp)[6];
                return ((unsigned long *)schedule_frame)[12];
        }
        return pc;