suspend_64.h 1.3 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152
  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. #include <asm/desc.h>
  9. #include <asm/i387.h>
  10. static inline int arch_prepare_suspend(void)
  11. {
  12. return 0;
  13. }
  14. /*
  15. * Image of the saved processor state, used by the low level ACPI suspend to
  16. * RAM code and by the low level hibernation code.
  17. *
  18. * If you modify it, fix arch/x86/kernel/acpi/wakeup_64.S and make sure that
  19. * __save/__restore_processor_state(), defined in arch/x86/kernel/suspend_64.c,
  20. * still work as required.
  21. */
  22. struct saved_context {
  23. struct pt_regs regs;
  24. u16 ds, es, fs, gs, ss;
  25. unsigned long gs_base, gs_kernel_base, fs_base;
  26. unsigned long cr0, cr2, cr3, cr4, cr8;
  27. unsigned long efer;
  28. u16 gdt_pad;
  29. u16 gdt_limit;
  30. unsigned long gdt_base;
  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. #define loaddebug(thread,register) \
  41. set_debugreg((thread)->debugreg##register, register)
  42. /* routines for saving/restoring kernel state */
  43. extern int acpi_save_state_mem(void);
  44. extern char core_restore_code;
  45. extern char restore_registers;
  46. #endif /* _ASM_X86_SUSPEND_64_H */