tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright 2001-2003 Pavel Machek <pavel@suse.cz>
3 * Based on code
4 * Copyright 2001 Patrick Mochel <mochel@osdl.org>
5 */
6#ifndef __ASM_X86_64_SUSPEND_H
7#define __ASM_X86_64_SUSPEND_H
8
9#include <asm/desc.h>
10#include <asm/i387.h>
11
12static inline int arch_prepare_suspend(void)
13{
14 return 0;
15}
16
17/*
18 * Image of the saved processor state, used by the low level ACPI suspend to
19 * RAM code and by the low level hibernation code.
20 *
21 * If you modify it, fix arch/x86/kernel/acpi/wakeup_64.S and make sure that
22 * __save/__restore_processor_state(), defined in arch/x86/kernel/suspend_64.c,
23 * still work as required.
24 */
25struct saved_context {
26 struct pt_regs regs;
27 u16 ds, es, fs, gs, ss;
28 unsigned long gs_base, gs_kernel_base, fs_base;
29 unsigned long cr0, cr2, cr3, cr4, cr8;
30 unsigned long efer;
31 u16 gdt_pad;
32 u16 gdt_limit;
33 unsigned long gdt_base;
34 u16 idt_pad;
35 u16 idt_limit;
36 unsigned long idt_base;
37 u16 ldt;
38 u16 tss;
39 unsigned long tr;
40 unsigned long safety;
41 unsigned long return_address;
42} __attribute__((packed));
43
44#define loaddebug(thread,register) \
45 set_debugreg((thread)->debugreg##register, register)
46
47/* routines for saving/restoring kernel state */
48extern int acpi_save_state_mem(void);
49extern char core_restore_code;
50extern char restore_registers;
51
52#endif /* __ASM_X86_64_SUSPEND_H */