diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 11:14:37 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 11:14:37 +0200 |
| commit | ba733ec4725df406a6ff5c5c1e6c447f42bbf39d (patch) | |
| tree | 1a1c87f6a332472145f8543bd60c7a2ac31386ae /arch/x86_64/kernel/suspend_asm.S | |
| parent | e86a989de27d4c0226928d6132f284f6156f30f7 (diff) | |
x86_64: prepare shared kernel/suspend_asm.S
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86_64/kernel/suspend_asm.S')
| -rw-r--r-- | arch/x86_64/kernel/suspend_asm.S | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/arch/x86_64/kernel/suspend_asm.S b/arch/x86_64/kernel/suspend_asm.S deleted file mode 100644 index 16d183f67bc..00000000000 --- a/arch/x86_64/kernel/suspend_asm.S +++ /dev/null @@ -1,110 +0,0 @@ -/* Copyright 2004,2005 Pavel Machek <pavel@suse.cz>, Andi Kleen <ak@suse.de>, Rafael J. Wysocki <rjw@sisk.pl> - * - * Distribute under GPLv2. - * - * swsusp_arch_resume may not use any stack, nor any variable that is - * not "NoSave" during copying pages: - * - * Its rewriting one kernel image with another. What is stack in "old" - * image could very well be data page in "new" image, and overwriting - * your own stack under you is bad idea. - */ - - .text -#include <linux/linkage.h> -#include <asm/segment.h> -#include <asm/page.h> -#include <asm/asm-offsets.h> - -ENTRY(swsusp_arch_suspend) - - movq %rsp, saved_context_esp(%rip) - movq %rax, saved_context_eax(%rip) - movq %rbx, saved_context_ebx(%rip) - movq %rcx, saved_context_ecx(%rip) - movq %rdx, saved_context_edx(%rip) - movq %rbp, saved_context_ebp(%rip) - movq %rsi, saved_context_esi(%rip) - movq %rdi, saved_context_edi(%rip) - movq %r8, saved_context_r08(%rip) - movq %r9, saved_context_r09(%rip) - movq %r10, saved_context_r10(%rip) - movq %r11, saved_context_r11(%rip) - movq %r12, saved_context_r12(%rip) - movq %r13, saved_context_r13(%rip) - movq %r14, saved_context_r14(%rip) - movq %r15, saved_context_r15(%rip) - pushfq ; popq saved_context_eflags(%rip) - - call swsusp_save - ret - -ENTRY(restore_image) - /* switch to temporary page tables */ - movq $__PAGE_OFFSET, %rdx - movq temp_level4_pgt(%rip), %rax - subq %rdx, %rax - movq %rax, %cr3 - /* Flush TLB */ - movq mmu_cr4_features(%rip), %rax - movq %rax, %rdx - andq $~(1<<7), %rdx # PGE - movq %rdx, %cr4; # turn off PGE - movq %cr3, %rcx; # flush TLB - movq %rcx, %cr3; - movq %rax, %cr4; # turn PGE back on - - movq restore_pblist(%rip), %rdx -loop: - testq %rdx, %rdx - jz done - - /* get addresses from the pbe and copy the page */ - movq pbe_address(%rdx), %rsi - movq pbe_orig_address(%rdx), %rdi - movq $512, %rcx - rep - movsq - - /* progress to the next pbe */ - movq pbe_next(%rdx), %rdx - jmp loop -done: - /* go back to the original page tables */ - movq $(init_level4_pgt - __START_KERNEL_map), %rax - addq phys_base(%rip), %rax - movq %rax, %cr3 - - /* Flush TLB, including "global" things (vmalloc) */ - movq mmu_cr4_features(%rip), %rax - movq %rax, %rdx - andq $~(1<<7), %rdx; # PGE - movq %rdx, %cr4; # turn off PGE - movq %cr3, %rcx; # flush TLB - movq %rcx, %cr3 - movq %rax, %cr4; # turn PGE back on - - movl $24, %eax - movl %eax, %ds - - movq saved_context_esp(%rip), %rsp - movq saved_context_ebp(%rip), %rbp - /* Don't restore %rax, it must be 0 anyway */ - movq saved_context_ebx(%rip), %rbx - movq saved_context_ecx(%rip), %rcx - movq saved_context_edx(%rip), %rdx - movq saved_context_esi(%rip), %rsi - movq saved_context_edi(%rip), %rdi - movq saved_context_r08(%rip), %r8 - movq saved_context_r09(%rip), %r9 - movq saved_context_r10(%rip), %r10 - movq saved_context_r11(%rip), %r11 - movq saved_context_r12(%rip), %r12 - movq saved_context_r13(%rip), %r13 - movq saved_context_r14(%rip), %r14 - movq saved_context_r15(%rip), %r15 - pushq saved_context_eflags(%rip) ; popfq - - xorq %rax, %rax - - ret |