Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef _LINUX_SWSUSP_H |
2 | #define _LINUX_SWSUSP_H | |
3 | ||
4 | #if defined(CONFIG_X86) || defined(CONFIG_FRV) || defined(CONFIG_PPC32) | |
5 | #include <asm/suspend.h> | |
6 | #endif | |
7 | #include <linux/swap.h> | |
8 | #include <linux/notifier.h> | |
1da177e4 LT |
9 | #include <linux/init.h> |
10 | #include <linux/pm.h> | |
11 | ||
12 | /* page backup entry */ | |
dcbb5a54 | 13 | struct pbe { |
1da177e4 LT |
14 | unsigned long address; /* address of the copy */ |
15 | unsigned long orig_address; /* original address of page */ | |
7088a5c0 | 16 | struct pbe *next; |
dcbb5a54 | 17 | }; |
1da177e4 | 18 | |
1da177e4 LT |
19 | /* mm/page_alloc.c */ |
20 | extern void drain_local_pages(void); | |
21 | extern void mark_free_pages(struct zone *zone); | |
22 | ||
23 | #ifdef CONFIG_PM | |
24 | /* kernel/power/swsusp.c */ | |
25 | extern int software_suspend(void); | |
46cd2f32 RW |
26 | |
27 | #if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) | |
28 | extern int pm_prepare_console(void); | |
29 | extern void pm_restore_console(void); | |
30 | #else | |
31 | static inline int pm_prepare_console(void) { return 0; } | |
32 | static inline void pm_restore_console(void) {} | |
33 | #endif /* defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) */ | |
1da177e4 LT |
34 | #else |
35 | static inline int software_suspend(void) | |
36 | { | |
37 | printk("Warning: fake suspend called\n"); | |
dcbb5a54 | 38 | return -ENOSYS; |
1da177e4 | 39 | } |
46cd2f32 | 40 | #endif /* CONFIG_PM */ |
1da177e4 | 41 | |
1da177e4 LT |
42 | void save_processor_state(void); |
43 | void restore_processor_state(void); | |
44 | struct saved_context; | |
45 | void __save_processor_state(struct saved_context *ctxt); | |
46 | void __restore_processor_state(struct saved_context *ctxt); | |
2c1b4a5c | 47 | unsigned long get_safe_page(gfp_t gfp_mask); |
1da177e4 | 48 | |
25761b6e RW |
49 | /* |
50 | * XXX: We try to keep some more pages free so that I/O operations succeed | |
51 | * without paging. Might this be more? | |
52 | */ | |
72a97e08 | 53 | #define PAGES_FOR_IO 1024 |
25761b6e | 54 | |
1da177e4 | 55 | #endif /* _LINUX_SWSUSP_H */ |