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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | /* |
3 | * Copyright 2001-2003 Pavel Machek <pavel@suse.cz> | |
4 | * Based on code | |
5 | * Copyright 2001 Patrick Mochel <mochel@osdl.org> | |
6 | */ | |
1965aae3 PA |
7 | #ifndef _ASM_X86_SUSPEND_64_H |
8 | #define _ASM_X86_SUSPEND_64_H | |
0de80bcc | 9 | |
1da177e4 | 10 | #include <asm/desc.h> |
df6b35f4 | 11 | #include <asm/fpu/api.h> |
1da177e4 | 12 | |
5c9c9bec RW |
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 | */ | |
1da177e4 | 21 | struct saved_context { |
0de80bcc | 22 | struct pt_regs regs; |
7ee18d67 AL |
23 | |
24 | /* | |
25 | * User CS and SS are saved in current_pt_regs(). The rest of the | |
26 | * segment selectors need to be saved and restored here. | |
27 | */ | |
28 | u16 ds, es, fs, gs; | |
29 | ||
30 | /* | |
31 | * Usermode FSBASE and GSBASE may not match the fs and gs selectors, | |
32 | * so we save them separately. We save the kernelmode GSBASE to | |
33 | * restore percpu access after resume. | |
34 | */ | |
35 | unsigned long kernelmode_gs_base, usermode_gs_base, fs_base; | |
36 | ||
8d783b3e | 37 | unsigned long cr0, cr2, cr3, cr4, cr8; |
85a0e753 OZ |
38 | u64 misc_enable; |
39 | bool misc_enable_saved; | |
7a9c2dd0 | 40 | struct saved_msrs saved_msrs; |
3c321bce | 41 | unsigned long efer; |
cc456c4e KRW |
42 | u16 gdt_pad; /* Unused */ |
43 | struct desc_ptr gdt_desc; | |
1da177e4 | 44 | u16 idt_pad; |
090edbe2 | 45 | struct desc_ptr idt; |
1da177e4 LT |
46 | u16 ldt; |
47 | u16 tss; | |
48 | unsigned long tr; | |
49 | unsigned long safety; | |
50 | unsigned long return_address; | |
1da177e4 LT |
51 | } __attribute__((packed)); |
52 | ||
1da177e4 | 53 | #define loaddebug(thread,register) \ |
2b514e74 | 54 | set_debugreg((thread)->debugreg##register, register) |
1da177e4 | 55 | |
1da177e4 | 56 | /* routines for saving/restoring kernel state */ |
c0944883 KC |
57 | extern char core_restore_code[]; |
58 | extern char restore_registers[]; | |
0de80bcc | 59 | |
1965aae3 | 60 | #endif /* _ASM_X86_SUSPEND_64_H */ |