text: /* SPDX-License-Identifier: GPL-2.0 */
  /*
   * Copyright 2001-2003 Pavel Machek <pavel@suse.cz>
   * Based on code
   * Copyright 2001 Patrick Mochel <mochel@osdl.org>
   */
  #ifndef _ASM_X86_SUSPEND_64_H
  #define _ASM_X86_SUSPEND_64_H
  
  #include <asm/desc.h>
  #include <asm/fpu/api.h>
  
  /*
   * Image of the saved processor state, used by the low level ACPI suspend to
   * RAM code and by the low level hibernation code.
   *
   * If you modify it, fix arch/x86/kernel/acpi/wakeup_64.S and make sure that
   * __save/__restore_processor_state(), defined in arch/x86/kernel/suspend_64.c,
   * still work as required.
   */
  struct saved_context {
  	struct pt_regs regs;
  
  	/*
  	 * User CS and SS are saved in current_pt_regs().  The rest of the
  	 * segment selectors need to be saved and restored here.
  	 */
  	u16 ds, es, fs, gs;
  
  	/*
  	 * Usermode FSBASE and GSBASE may not match the fs and gs selectors,
  	 * so we save them separately.  We save the kernelmode GSBASE to
  	 * restore percpu access after resume.
  	 */
  	unsigned long kernelmode_gs_base, usermode_gs_base, fs_base;
  
  	unsigned long cr0, cr2, cr3, cr4;
  	u64 misc_enable;
  	bool misc_enable_saved;
  	struct saved_msrs saved_msrs;
  	unsigned long efer;
  	u16 gdt_pad; /* Unused */
  	struct desc_ptr gdt_desc;
  	u16 idt_pad;
  	struct desc_ptr idt;
  	u16 ldt;
  	u16 tss;
  	unsigned long tr;
  	unsigned long safety;
  	unsigned long return_address;
  } __attribute__((packed));
  
  #define loaddebug(thread,register) \
  	set_debugreg((thread)->debugreg##register, register)
  
  /* routines for saving/restoring kernel state */
  extern char core_restore_code[];
  extern char restore_registers[];
  
  #endif /* _ASM_X86_SUSPEND_64_H */
  