include/asm-x86_64/suspend.h

   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
   9 static inline int
  10 arch_prepare_suspend(void)
  11 {
  12         return 0;
  13 }
  14
  15 /* Image of the saved processor state. If you touch this, fix acpi_wakeup.S. */
  16 struct 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         u16 gdt_pad;
  21         u16 gdt_limit;
  22         unsigned long gdt_base;
  23         u16 idt_pad;
  24         u16 idt_limit;
  25         unsigned long idt_base;
  26         u16 ldt;
  27         u16 tss;
  28         unsigned long tr;
  29         unsigned long safety;
  30         unsigned long return_address;
  31         unsigned long eflags;
  32 } __attribute__((packed));
  33
  34 /* We'll access these from assembly, so we'd better have them outside struct */
  35 extern unsigned long saved_context_eax, saved_context_ebx, saved_context_ecx, saved_context_edx;
  36 extern unsigned long saved_context_esp, saved_context_ebp, saved_context_esi, saved_context_edi;
  37 extern unsigned long saved_context_r08, saved_context_r09, saved_context_r10, saved_context_r11;
  38 extern unsigned long saved_context_r12, saved_context_r13, saved_context_r14, saved_context_r15;
  39 extern unsigned long saved_context_eflags;
  40
  41 #define loaddebug(thread,register) \
  42                __asm__("movq %0,%%db" #register  \
  43                        : /* no output */ \
  44                        :"r" ((thread)->debugreg##register))
  45
  46 extern void fix_processor_context(void);
  47
  48 #ifdef CONFIG_ACPI_SLEEP
  49 extern unsigned long saved_eip;
  50 extern unsigned long saved_esp;
  51 extern unsigned long saved_ebp;
  52 extern unsigned long saved_ebx;
  53 extern unsigned long saved_esi;
  54 extern unsigned long saved_edi;
  55
  56 /* routines for saving/restoring kernel state */
  57 extern int acpi_save_state_mem(void);
  58 #endif