diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-i386/suspend.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-i386/suspend.h')
-rw-r--r-- | include/asm-i386/suspend.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/include/asm-i386/suspend.h b/include/asm-i386/suspend.h new file mode 100644 index 000000000000..dfc1114c1b6f --- /dev/null +++ b/include/asm-i386/suspend.h | |||
@@ -0,0 +1,66 @@ | |||
1 | /* | ||
2 | * Copyright 2001-2002 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 | /* If you want to make non-PSE machine work, turn off paging | ||
13 | in swsusp_arch_suspend. swsusp_pg_dir should have identity mapping, so | ||
14 | it could work... */ | ||
15 | if (!cpu_has_pse) { | ||
16 | printk(KERN_ERR "PSE is required for swsusp.\n"); | ||
17 | return -EPERM; | ||
18 | } | ||
19 | return 0; | ||
20 | } | ||
21 | |||
22 | /* image of the saved processor state */ | ||
23 | struct saved_context { | ||
24 | u16 es, fs, gs, ss; | ||
25 | unsigned long cr0, cr2, cr3, cr4; | ||
26 | u16 gdt_pad; | ||
27 | u16 gdt_limit; | ||
28 | unsigned long gdt_base; | ||
29 | u16 idt_pad; | ||
30 | u16 idt_limit; | ||
31 | unsigned long idt_base; | ||
32 | u16 ldt; | ||
33 | u16 tss; | ||
34 | unsigned long tr; | ||
35 | unsigned long safety; | ||
36 | unsigned long return_address; | ||
37 | } __attribute__((packed)); | ||
38 | |||
39 | #define loaddebug(thread,register) \ | ||
40 | __asm__("movl %0,%%db" #register \ | ||
41 | : /* no output */ \ | ||
42 | :"r" ((thread)->debugreg[register])) | ||
43 | |||
44 | #ifdef CONFIG_ACPI_SLEEP | ||
45 | extern unsigned long saved_eip; | ||
46 | extern unsigned long saved_esp; | ||
47 | extern unsigned long saved_ebp; | ||
48 | extern unsigned long saved_ebx; | ||
49 | extern unsigned long saved_esi; | ||
50 | extern unsigned long saved_edi; | ||
51 | |||
52 | static inline void acpi_save_register_state(unsigned long return_point) | ||
53 | { | ||
54 | saved_eip = return_point; | ||
55 | asm volatile ("movl %%esp,%0" : "=m" (saved_esp)); | ||
56 | asm volatile ("movl %%ebp,%0" : "=m" (saved_ebp)); | ||
57 | asm volatile ("movl %%ebx,%0" : "=m" (saved_ebx)); | ||
58 | asm volatile ("movl %%edi,%0" : "=m" (saved_edi)); | ||
59 | asm volatile ("movl %%esi,%0" : "=m" (saved_esi)); | ||
60 | } | ||
61 | |||
62 | #define acpi_restore_register_state() do {} while (0) | ||
63 | |||
64 | /* routines for saving/restoring kernel state */ | ||
65 | extern int acpi_save_state_mem(void); | ||
66 | #endif | ||