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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> | |
9 | #include <linux/config.h> | |
10 | #include <linux/init.h> | |
11 | #include <linux/pm.h> | |
12 | ||
13 | /* page backup entry */ | |
14 | typedef struct pbe { | |
15 | unsigned long address; /* address of the copy */ | |
16 | unsigned long orig_address; /* original address of page */ | |
17 | swp_entry_t swap_address; | |
18 | ||
19 | struct pbe *next; /* also used as scratch space at | |
20 | * end of page (see link, diskpage) | |
21 | */ | |
22 | } suspend_pagedir_t; | |
23 | ||
24 | #define for_each_pbe(pbe, pblist) \ | |
25 | for (pbe = pblist ; pbe ; pbe = pbe->next) | |
26 | ||
27 | #define PBES_PER_PAGE (PAGE_SIZE/sizeof(struct pbe)) | |
28 | #define PB_PAGE_SKIP (PBES_PER_PAGE-1) | |
29 | ||
30 | #define for_each_pb_page(pbe, pblist) \ | |
31 | for (pbe = pblist ; pbe ; pbe = (pbe+PB_PAGE_SKIP)->next) | |
32 | ||
33 | ||
34 | #define SWAP_FILENAME_MAXLENGTH 32 | |
35 | ||
36 | ||
37 | extern dev_t swsusp_resume_device; | |
38 | ||
39 | /* mm/vmscan.c */ | |
40 | extern int shrink_mem(void); | |
41 | ||
42 | /* mm/page_alloc.c */ | |
43 | extern void drain_local_pages(void); | |
44 | extern void mark_free_pages(struct zone *zone); | |
45 | ||
46 | #ifdef CONFIG_PM | |
47 | /* kernel/power/swsusp.c */ | |
48 | extern int software_suspend(void); | |
49 | ||
50 | extern int pm_prepare_console(void); | |
51 | extern void pm_restore_console(void); | |
52 | ||
53 | #else | |
54 | static inline int software_suspend(void) | |
55 | { | |
56 | printk("Warning: fake suspend called\n"); | |
57 | return -EPERM; | |
58 | } | |
59 | #endif | |
60 | ||
5a72e04d | 61 | #ifdef CONFIG_SUSPEND_SMP |
1da177e4 LT |
62 | extern void disable_nonboot_cpus(void); |
63 | extern void enable_nonboot_cpus(void); | |
64 | #else | |
65 | static inline void disable_nonboot_cpus(void) {} | |
66 | static inline void enable_nonboot_cpus(void) {} | |
67 | #endif | |
68 | ||
69 | void save_processor_state(void); | |
70 | void restore_processor_state(void); | |
71 | struct saved_context; | |
72 | void __save_processor_state(struct saved_context *ctxt); | |
73 | void __restore_processor_state(struct saved_context *ctxt); | |
74 | ||
75 | #endif /* _LINUX_SWSUSP_H */ |