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1da177e4 LT |
1 | /* |
2 | * Copyright 2001-2003 Pavel Machek <pavel@suse.cz> | |
3 | * Based on code | |
4 | * Copyright 2001 Patrick Mochel <mochel@osdl.org> | |
5 | */ | |
6 | #include <asm/desc.h> | |
7 | #include <asm/i387.h> | |
8 | ||
9 | static inline int | |
10 | arch_prepare_suspend(void) | |
11 | { | |
12 | return 0; | |
13 | } | |
14 | ||
15 | /* Image of the saved processor state. If you touch this, fix acpi_wakeup.S. */ | |
16 | struct saved_context { | |
17 | u16 ds, es, fs, gs, ss; | |
18 | unsigned long gs_base, gs_kernel_base, fs_base; | |
8d783b3e | 19 | unsigned long cr0, cr2, cr3, cr4, cr8; |
1da177e4 LT |
20 | u16 gdt_pad; |
21 | u16 gdt_limit; | |
22 | unsigned long gdt_base; | |
23 | u16 idt_pad; | |
24 | u16 idt_limit; | |
25 | unsigned long idt_base; | |
26 | u16 ldt; | |
27 | u16 tss; | |
28 | unsigned long tr; | |
29 | unsigned long safety; | |
30 | unsigned long return_address; | |
31 | unsigned long eflags; | |
32 | } __attribute__((packed)); | |
33 | ||
34 | /* We'll access these from assembly, so we'd better have them outside struct */ | |
35 | extern unsigned long saved_context_eax, saved_context_ebx, saved_context_ecx, saved_context_edx; | |
36 | extern unsigned long saved_context_esp, saved_context_ebp, saved_context_esi, saved_context_edi; | |
37 | extern unsigned long saved_context_r08, saved_context_r09, saved_context_r10, saved_context_r11; | |
38 | extern unsigned long saved_context_r12, saved_context_r13, saved_context_r14, saved_context_r15; | |
39 | extern unsigned long saved_context_eflags; | |
40 | ||
41 | #define loaddebug(thread,register) \ | |
42 | __asm__("movq %0,%%db" #register \ | |
43 | : /* no output */ \ | |
44 | :"r" ((thread)->debugreg##register)) | |
45 | ||
46 | extern void fix_processor_context(void); | |
47 | ||
48 | #ifdef CONFIG_ACPI_SLEEP | |
49 | extern unsigned long saved_eip; | |
50 | extern unsigned long saved_esp; | |
51 | extern unsigned long saved_ebp; | |
52 | extern unsigned long saved_ebx; | |
53 | extern unsigned long saved_esi; | |
54 | extern unsigned long saved_edi; | |
55 | ||
56 | /* routines for saving/restoring kernel state */ | |
57 | extern int acpi_save_state_mem(void); | |
58 | #endif |