[deliverable/linux.git] / arch / x86 / include / asm / suspend_64.h

/*
 * Copyright 2001-2003 Pavel Machek <pavel@suse.cz>
 * Based on code
 * Copyright 2001 Patrick Mochel <mochel@osdl.org>
 */
#ifndef _ASM_X86_SUSPEND_64_H
#define _ASM_X86_SUSPEND_64_H

#include <asm/desc.h>
#include <asm/i387.h>

static inline int arch_prepare_suspend(void)
{
	return 0;
}

/*
 * Image of the saved processor state, used by the low level ACPI suspend to
 * RAM code and by the low level hibernation code.
 *
 * If you modify it, fix arch/x86/kernel/acpi/wakeup_64.S and make sure that
 * __save/__restore_processor_state(), defined in arch/x86/kernel/suspend_64.c,
 * still work as required.
 */
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)

/* 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_SUSPEND_64_H */
Commit	Line	Data
	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_SUSPEND_64_H
	7	#define _ASM_X86_SUSPEND_64_H
	8
	9	#include <asm/desc.h>
	10	#include <asm/i387.h>
	11
	12	static 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	*/
	25	struct 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 */
	48	extern int acpi_save_state_mem(void);
	49	extern char core_restore_code;
	50	extern char restore_registers;
	51
	52	#endif /* _ASM_X86_SUSPEND_64_H */