/*
 * Copyright 2001-2002 Pavel Machek <pavel@suse.cz>
 * Based on code
 * Copyright 2001 Patrick Mochel <mochel@osdl.org>
 */
#include <asm/desc.h>
#include <asm/i387.h>

static inline void
arch_prepare_suspend(void)
{
}

/* Image of the saved processor state. If you touch this, fix acpi_wakeup.S. */
struct saved_context {
  	u16 ds, es, fs, gs, ss;
	unsigned long gs_base, gs_kernel_base, fs_base;
	unsigned long cr0, cr2, cr3, cr4;
	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;
	unsigned long eflags;
} __attribute__((packed));

/* We'll access these from assembly, so we'd better have them outside struct */
extern unsigned long saved_context_eax, saved_context_ebx, saved_context_ecx, saved_context_edx;
extern unsigned long saved_context_esp, saved_context_ebp, saved_context_esi, saved_context_edi;
extern unsigned long saved_context_r08, saved_context_r09, saved_context_r10, saved_context_r11;
extern unsigned long saved_context_r12, saved_context_r13, saved_context_r14, saved_context_r15;
extern unsigned long saved_context_eflags;


#define loaddebug(thread,register) \
               __asm__("movq %0,%%db" #register  \
                       : /* no output */ \
                       :"r" ((thread)->debugreg[register]))

extern void fix_processor_context(void);
extern void do_magic(int resume);

#ifdef CONFIG_ACPI_SLEEP
extern unsigned long saved_eip;
extern unsigned long saved_esp;
extern unsigned long saved_ebp;
extern unsigned long saved_ebx;
extern unsigned long saved_esi;
extern unsigned long saved_edi;

static inline void acpi_save_register_state(unsigned long return_point)
{
	/* FIXME: This is probably no longer correct: we need to save all caller-saved registers */
}

#define acpi_restore_register_state()  do {} while (0)

/* routines for saving/restoring kernel state */
extern int acpi_save_state_mem(void);
extern int acpi_save_state_disk(void);
#endif
