arch/x86/include/asm/suspend_64.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 #ifndef _ASM_X86_SUSPEND_64_H
   7 #define _ASM_X86_SUSPEND_64_H
   8
   9 #include <asm/desc.h>
  10 #include <asm/fpu/api.h>
  11
  12 /*
  13  * Image of the saved processor state, used by the low level ACPI suspend to
  14  * RAM code and by the low level hibernation code.
  15  *
  16  * If you modify it, fix arch/x86/kernel/acpi/wakeup_64.S and make sure that
  17  * __save/__restore_processor_state(), defined in arch/x86/kernel/suspend_64.c,
  18  * still work as required.
  19  */
  20 struct saved_context {
  21         struct pt_regs regs;
  22         u16 ds, es, fs, gs, ss;
  23         unsigned long gs_base, gs_kernel_base, fs_base;
  24         unsigned long cr0, cr2, cr3, cr4, cr8;
  25         u64 misc_enable;
  26         bool misc_enable_saved;
  27         struct saved_msrs saved_msrs;
  28         unsigned long efer;
  29         u16 gdt_pad; /* Unused */
  30         struct desc_ptr gdt_desc;
  31         u16 idt_pad;
  32         u16 idt_limit;
  33         unsigned long idt_base;
  34         u16 ldt;
  35         u16 tss;
  36         unsigned long tr;
  37         unsigned long safety;
  38         unsigned long return_address;
  39 } __attribute__((packed));
  40
  41 #define loaddebug(thread,register) \
  42         set_debugreg((thread)->debugreg##register, register)
  43
  44 /* routines for saving/restoring kernel state */
  45 extern char core_restore_code[];
  46 extern char restore_registers[];
  47
  48 #endif /* _ASM_X86_SUSPEND_64_H */