suspend_64.h 1.3 KB

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  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. u64 misc_enable;
  28. bool misc_enable_saved;
  29. unsigned long efer;
  30. u16 gdt_pad;
  31. u16 gdt_limit;
  32. unsigned long gdt_base;
  33. u16 idt_pad;
  34. u16 idt_limit;
  35. unsigned long idt_base;
  36. u16 ldt;
  37. u16 tss;
  38. unsigned long tr;
  39. unsigned long safety;
  40. unsigned long return_address;
  41. } __attribute__((packed));
  42. #define loaddebug(thread,register) \
  43. set_debugreg((thread)->debugreg##register, register)
  44. /* routines for saving/restoring kernel state */
  45. extern int acpi_save_state_mem(void);
  46. extern char core_restore_code;
  47. extern char restore_registers;
  48. #endif /* _ASM_X86_SUSPEND_64_H */