1/* 2 * Copyright 2001-2003 Pavel Machek <pavel@suse.cz> 3 * Based on code 4 * Copyright 2001 Patrick Mochel <mochel@osdl.org> 5 */ 6#include <asm/desc.h> 7#include <asm/i387.h> 8 9static inline int 10arch_prepare_suspend(void) 11{ 12 return 0; 13} 14 15/* Image of the saved processor state. If you touch this, fix acpi_wakeup.S. */ 16struct saved_context { 17 u16 ds, es, fs, gs, ss; 18 unsigned long gs_base, gs_kernel_base, fs_base; 19 unsigned long cr0, cr2, cr3, cr4, cr8; 20 unsigned long efer; 21 u16 gdt_pad; 22 u16 gdt_limit; 23 unsigned long gdt_base; 24 u16 idt_pad; 25 u16 idt_limit; 26 unsigned long idt_base; 27 u16 ldt; 28 u16 tss; 29 unsigned long tr; 30 unsigned long safety; 31 unsigned long return_address; 32 unsigned long eflags; 33} __attribute__((packed)); 34 35/* We'll access these from assembly, so we'd better have them outside struct */ 36extern unsigned long saved_context_eax, saved_context_ebx, saved_context_ecx, saved_context_edx; 37extern unsigned long saved_context_esp, saved_context_ebp, saved_context_esi, saved_context_edi; 38extern unsigned long saved_context_r08, saved_context_r09, saved_context_r10, saved_context_r11; 39extern unsigned long saved_context_r12, saved_context_r13, saved_context_r14, saved_context_r15; 40extern unsigned long saved_context_eflags; 41 42#define loaddebug(thread,register) \ 43 set_debugreg((thread)->debugreg##register, register) 44 45extern void fix_processor_context(void); 46 47#ifdef CONFIG_ACPI_SLEEP 48extern unsigned long saved_rip; 49extern unsigned long saved_rsp; 50extern unsigned long saved_rbp; 51extern unsigned long saved_rbx; 52extern unsigned long saved_rsi; 53extern unsigned long saved_rdi; 54 55/* routines for saving/restoring kernel state */ 56extern int acpi_save_state_mem(void); 57#endif 58