LXR linux/arch/x86/include/asm/suspend

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Copyright 2001-2003 Pavel Machek <pavel@suse.cz>
   4 * Based on code
   5 * Copyright 2001 Patrick Mochel <mochel@osdl.org>
   6 */
   7#ifndef _ASM_X86_SUSPEND_64_H
   8#define _ASM_X86_SUSPEND_64_H
   9
  10#include <asm/desc.h>
  11#include <asm/fpu/api.h>
  12
  13/*
  14 * Image of the saved processor state, used by the low level ACPI suspend to
  15 * RAM code and by the low level hibernation code.
  16 *
  17 * If you modify it, fix arch/x86/kernel/acpi/wakeup_64.S and make sure that
  18 * __save/__restore_processor_state(), defined in arch/x86/kernel/suspend_64.c,
  19 * still work as required.
  20 */
  21struct saved_context {
  22        struct pt_regs regs;
  23        u16 ds, es, fs, gs, ss;
  24        unsigned long gs_base, gs_kernel_base, fs_base;
  25        unsigned long cr0, cr2, cr3, cr4, cr8;
  26        u64 misc_enable;
  27        bool misc_enable_saved;
  28        struct saved_msrs saved_msrs;
  29        unsigned long efer;
  30        u16 gdt_pad; /* Unused */
  31        struct desc_ptr gdt_desc;
  32        u16 idt_pad;
  33        u16 idt_limit;
  34        unsigned long idt_base;
  35        u16 ldt;
  36        u16 tss;
  37        unsigned long tr;
  38        unsigned long safety;
  39        unsigned long return_address;
  40} __attribute__((packed));
  41
  42#define loaddebug(thread,register) \
  43        set_debugreg((thread)->debugreg##register, register)
  44
  45/* routines for saving/restoring kernel state */
  46extern char core_restore_code[];
  47extern char restore_registers[];
  48
  49#endif /* _ASM_X86_SUSPEND_64_H */
  50