.text
|
#include <linux/linkage.h>
|
#include <asm/segment.h>
|
#include <asm/pgtable_types.h>
|
#include <asm/page_types.h>
|
#include <asm/msr.h>
|
#include <asm/asm-offsets.h>
|
#include <asm/frame.h>
|
|
# Copyright 2003 Pavel Machek <pavel@suse.cz>, distribute under GPLv2
|
|
.code64
|
/*
|
* Hooray, we are in Long 64-bit mode (but still running in low memory)
|
*/
|
ENTRY(wakeup_long64)
|
movq saved_magic, %rax
|
movq $0x123456789abcdef0, %rdx
|
cmpq %rdx, %rax
|
jne bogus_64_magic
|
|
movw $__KERNEL_DS, %ax
|
movw %ax, %ss
|
movw %ax, %ds
|
movw %ax, %es
|
movw %ax, %fs
|
movw %ax, %gs
|
movq saved_rsp, %rsp
|
|
movq saved_rbx, %rbx
|
movq saved_rdi, %rdi
|
movq saved_rsi, %rsi
|
movq saved_rbp, %rbp
|
|
movq saved_rip, %rax
|
jmp *%rax
|
ENDPROC(wakeup_long64)
|
|
bogus_64_magic:
|
jmp bogus_64_magic
|
|
ENTRY(do_suspend_lowlevel)
|
FRAME_BEGIN
|
subq $8, %rsp
|
xorl %eax, %eax
|
call save_processor_state
|
|
movq $saved_context, %rax
|
movq %rsp, pt_regs_sp(%rax)
|
movq %rbp, pt_regs_bp(%rax)
|
movq %rsi, pt_regs_si(%rax)
|
movq %rdi, pt_regs_di(%rax)
|
movq %rbx, pt_regs_bx(%rax)
|
movq %rcx, pt_regs_cx(%rax)
|
movq %rdx, pt_regs_dx(%rax)
|
movq %r8, pt_regs_r8(%rax)
|
movq %r9, pt_regs_r9(%rax)
|
movq %r10, pt_regs_r10(%rax)
|
movq %r11, pt_regs_r11(%rax)
|
movq %r12, pt_regs_r12(%rax)
|
movq %r13, pt_regs_r13(%rax)
|
movq %r14, pt_regs_r14(%rax)
|
movq %r15, pt_regs_r15(%rax)
|
pushfq
|
popq pt_regs_flags(%rax)
|
|
movq $.Lresume_point, saved_rip(%rip)
|
|
movq %rsp, saved_rsp
|
movq %rbp, saved_rbp
|
movq %rbx, saved_rbx
|
movq %rdi, saved_rdi
|
movq %rsi, saved_rsi
|
|
addq $8, %rsp
|
movl $3, %edi
|
xorl %eax, %eax
|
call x86_acpi_enter_sleep_state
|
/* in case something went wrong, restore the machine status and go on */
|
jmp .Lresume_point
|
|
.align 4
|
.Lresume_point:
|
/* We don't restore %rax, it must be 0 anyway */
|
movq $saved_context, %rax
|
movq saved_context_cr4(%rax), %rbx
|
movq %rbx, %cr4
|
movq saved_context_cr3(%rax), %rbx
|
movq %rbx, %cr3
|
movq saved_context_cr2(%rax), %rbx
|
movq %rbx, %cr2
|
movq saved_context_cr0(%rax), %rbx
|
movq %rbx, %cr0
|
pushq pt_regs_flags(%rax)
|
popfq
|
movq pt_regs_sp(%rax), %rsp
|
movq pt_regs_bp(%rax), %rbp
|
movq pt_regs_si(%rax), %rsi
|
movq pt_regs_di(%rax), %rdi
|
movq pt_regs_bx(%rax), %rbx
|
movq pt_regs_cx(%rax), %rcx
|
movq pt_regs_dx(%rax), %rdx
|
movq pt_regs_r8(%rax), %r8
|
movq pt_regs_r9(%rax), %r9
|
movq pt_regs_r10(%rax), %r10
|
movq pt_regs_r11(%rax), %r11
|
movq pt_regs_r12(%rax), %r12
|
movq pt_regs_r13(%rax), %r13
|
movq pt_regs_r14(%rax), %r14
|
movq pt_regs_r15(%rax), %r15
|
|
#ifdef CONFIG_KASAN
|
/*
|
* The suspend path may have poisoned some areas deeper in the stack,
|
* which we now need to unpoison.
|
*/
|
movq %rsp, %rdi
|
call kasan_unpoison_task_stack_below
|
#endif
|
|
xorl %eax, %eax
|
addq $8, %rsp
|
FRAME_END
|
jmp restore_processor_state
|
ENDPROC(do_suspend_lowlevel)
|
|
.data
|
ENTRY(saved_rbp) .quad 0
|
ENTRY(saved_rsi) .quad 0
|
ENTRY(saved_rdi) .quad 0
|
ENTRY(saved_rbx) .quad 0
|
|
ENTRY(saved_rip) .quad 0
|
ENTRY(saved_rsp) .quad 0
|
|
ENTRY(saved_magic) .quad 0
|
