]>
Commit | Line | Data |
---|---|---|
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 */ | |
13 | typedef struct pbe { | |
14 | unsigned long address; /* address of the copy */ | |
15 | unsigned long orig_address; /* original address of page */ | |
7088a5c0 | 16 | struct pbe *next; |
1da177e4 LT |
17 | } suspend_pagedir_t; |
18 | ||
19 | #define for_each_pbe(pbe, pblist) \ | |
20 | for (pbe = pblist ; pbe ; pbe = pbe->next) | |
21 | ||
22 | #define PBES_PER_PAGE (PAGE_SIZE/sizeof(struct pbe)) | |
23 | #define PB_PAGE_SKIP (PBES_PER_PAGE-1) | |
24 | ||
25 | #define for_each_pb_page(pbe, pblist) \ | |
26 | for (pbe = pblist ; pbe ; pbe = (pbe+PB_PAGE_SKIP)->next) | |
27 | ||
28 | ||
29 | #define SWAP_FILENAME_MAXLENGTH 32 | |
30 | ||
31 | ||
32 | extern dev_t swsusp_resume_device; | |
33 | ||
34 | /* mm/vmscan.c */ | |
35 | extern int shrink_mem(void); | |
36 | ||
37 | /* mm/page_alloc.c */ | |
38 | extern void drain_local_pages(void); | |
39 | extern void mark_free_pages(struct zone *zone); | |
40 | ||
41 | #ifdef CONFIG_PM | |
42 | /* kernel/power/swsusp.c */ | |
43 | extern int software_suspend(void); | |
46cd2f32 RW |
44 | |
45 | #if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) | |
46 | extern int pm_prepare_console(void); | |
47 | extern void pm_restore_console(void); | |
48 | #else | |
49 | static inline int pm_prepare_console(void) { return 0; } | |
50 | static inline void pm_restore_console(void) {} | |
51 | #endif /* defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) */ | |
1da177e4 LT |
52 | #else |
53 | static inline int software_suspend(void) | |
54 | { | |
55 | printk("Warning: fake suspend called\n"); | |
56 | return -EPERM; | |
57 | } | |
46cd2f32 | 58 | #endif /* CONFIG_PM */ |
1da177e4 | 59 | |
1da177e4 LT |
60 | void save_processor_state(void); |
61 | void restore_processor_state(void); | |
62 | struct saved_context; | |
63 | void __save_processor_state(struct saved_context *ctxt); | |
64 | void __restore_processor_state(struct saved_context *ctxt); | |
2c1b4a5c | 65 | unsigned long get_safe_page(gfp_t gfp_mask); |
1da177e4 | 66 | |
25761b6e RW |
67 | /* |
68 | * XXX: We try to keep some more pages free so that I/O operations succeed | |
69 | * without paging. Might this be more? | |
70 | */ | |
72a97e08 | 71 | #define PAGES_FOR_IO 1024 |
25761b6e | 72 | |
1da177e4 | 73 | #endif /* _LINUX_SWSUSP_H */ |