linux/include/asm-x86/suspend_64.h
Rafael J. Wysocki 0de80bcc2b x86: Save registers in saved_context during suspend and hibernation
During hibernation and suspend on x86_64 save CPU registers in the saved_context
structure rather than in a handful of separate variables.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-23 22:37:24 +02:00

48 lines
1.1 KiB
C

/*
* Copyright 2001-2003 Pavel Machek <pavel@suse.cz>
* Based on code
* Copyright 2001 Patrick Mochel <mochel@osdl.org>
*/
#ifndef __ASM_X86_64_SUSPEND_H
#define __ASM_X86_64_SUSPEND_H
#include <asm/desc.h>
#include <asm/i387.h>
static inline int
arch_prepare_suspend(void)
{
return 0;
}
/* Image of the saved processor state. If you touch this, fix acpi/wakeup.S. */
struct saved_context {
struct pt_regs regs;
u16 ds, es, fs, gs, ss;
unsigned long gs_base, gs_kernel_base, fs_base;
unsigned long cr0, cr2, cr3, cr4, cr8;
unsigned long efer;
u16 gdt_pad;
u16 gdt_limit;
unsigned long gdt_base;
u16 idt_pad;
u16 idt_limit;
unsigned long idt_base;
u16 ldt;
u16 tss;
unsigned long tr;
unsigned long safety;
unsigned long return_address;
} __attribute__((packed));
#define loaddebug(thread,register) \
set_debugreg((thread)->debugreg##register, register)
extern void fix_processor_context(void);
/* routines for saving/restoring kernel state */
extern int acpi_save_state_mem(void);
extern char core_restore_code;
extern char restore_registers;
#endif /* __ASM_X86_64_SUSPEND_H */