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Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef _LINUX_SWSUSP_H |
2 | #define _LINUX_SWSUSP_H | |
3 | ||
543b9fd3 | 4 | #if defined(CONFIG_X86) || defined(CONFIG_FRV) || defined(CONFIG_PPC32) || defined(CONFIG_PPC64) |
1da177e4 LT |
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> | |
7be98234 | 11 | #include <linux/mm.h> |
1da177e4 | 12 | |
8357376d RW |
13 | /* struct pbe is used for creating lists of pages that should be restored |
14 | * atomically during the resume from disk, because the page frames they have | |
15 | * occupied before the suspend are in use. | |
16 | */ | |
dcbb5a54 | 17 | struct pbe { |
8357376d RW |
18 | void *address; /* address of the copy */ |
19 | void *orig_address; /* original address of a page */ | |
7088a5c0 | 20 | struct pbe *next; |
dcbb5a54 | 21 | }; |
1da177e4 | 22 | |
1da177e4 LT |
23 | /* mm/page_alloc.c */ |
24 | extern void drain_local_pages(void); | |
25 | extern void mark_free_pages(struct zone *zone); | |
26 | ||
74dfd666 | 27 | #if defined(CONFIG_PM) && defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) |
46cd2f32 RW |
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) {} | |
74dfd666 RW |
33 | #endif |
34 | ||
a3d25c27 RW |
35 | /** |
36 | * struct hibernation_ops - hibernation platform support | |
37 | * | |
38 | * The methods in this structure allow a platform to override the default | |
39 | * mechanism of shutting down the machine during a hibernation transition. | |
40 | * | |
41 | * All three methods must be assigned. | |
42 | * | |
43 | * @prepare: prepare system for hibernation | |
44 | * @enter: shut down system after state has been saved to disk | |
45 | * @finish: finish/clean up after state has been reloaded | |
46 | */ | |
47 | struct hibernation_ops { | |
48 | int (*prepare)(void); | |
49 | int (*enter)(void); | |
50 | void (*finish)(void); | |
51 | }; | |
52 | ||
74dfd666 | 53 | #if defined(CONFIG_PM) && defined(CONFIG_SOFTWARE_SUSPEND) |
74dfd666 | 54 | /* kernel/power/snapshot.c */ |
940d67f6 JB |
55 | extern void __register_nosave_region(unsigned long b, unsigned long e, int km); |
56 | static inline void register_nosave_region(unsigned long b, unsigned long e) | |
57 | { | |
58 | __register_nosave_region(b, e, 0); | |
59 | } | |
60 | static inline void register_nosave_region_late(unsigned long b, unsigned long e) | |
61 | { | |
62 | __register_nosave_region(b, e, 1); | |
63 | } | |
74dfd666 RW |
64 | extern int swsusp_page_is_forbidden(struct page *); |
65 | extern void swsusp_set_page_free(struct page *); | |
66 | extern void swsusp_unset_page_free(struct page *); | |
67 | extern unsigned long get_safe_page(gfp_t gfp_mask); | |
a3d25c27 RW |
68 | |
69 | extern void hibernation_set_ops(struct hibernation_ops *ops); | |
70 | extern int hibernate(void); | |
1da177e4 | 71 | #else |
74dfd666 | 72 | static inline void register_nosave_region(unsigned long b, unsigned long e) {} |
940d67f6 | 73 | static inline void register_nosave_region_late(unsigned long b, unsigned long e) {} |
74dfd666 RW |
74 | static inline int swsusp_page_is_forbidden(struct page *p) { return 0; } |
75 | static inline void swsusp_set_page_free(struct page *p) {} | |
76 | static inline void swsusp_unset_page_free(struct page *p) {} | |
a3d25c27 RW |
77 | |
78 | static inline void hibernation_set_ops(struct hibernation_ops *ops) {} | |
79 | static inline int hibernate(void) { return -ENOSYS; } | |
74dfd666 | 80 | #endif /* defined(CONFIG_PM) && defined(CONFIG_SOFTWARE_SUSPEND) */ |
1da177e4 | 81 | |
1da177e4 LT |
82 | void save_processor_state(void); |
83 | void restore_processor_state(void); | |
84 | struct saved_context; | |
85 | void __save_processor_state(struct saved_context *ctxt); | |
86 | void __restore_processor_state(struct saved_context *ctxt); | |
25761b6e | 87 | |
1da177e4 | 88 | #endif /* _LINUX_SWSUSP_H */ |