Merge git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / suspend.h
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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
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9#include <linux/init.h>
10#include <linux/pm.h>
7be98234 11#include <linux/mm.h>
1da177e4 12
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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 17struct pbe {
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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 */
24extern void drain_local_pages(void);
25extern void mark_free_pages(struct zone *zone);
26
74dfd666 27#if defined(CONFIG_PM) && defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE)
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28extern int pm_prepare_console(void);
29extern void pm_restore_console(void);
30#else
31static inline int pm_prepare_console(void) { return 0; }
32static inline void pm_restore_console(void) {}
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33#endif
34
35#if defined(CONFIG_PM) && defined(CONFIG_SOFTWARE_SUSPEND)
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36/* kernel/power/snapshot.c */
37extern void __init register_nosave_region(unsigned long, unsigned long);
38extern int swsusp_page_is_forbidden(struct page *);
39extern void swsusp_set_page_free(struct page *);
40extern void swsusp_unset_page_free(struct page *);
41extern unsigned long get_safe_page(gfp_t gfp_mask);
1da177e4 42#else
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43static inline void register_nosave_region(unsigned long b, unsigned long e) {}
44static inline int swsusp_page_is_forbidden(struct page *p) { return 0; }
45static inline void swsusp_set_page_free(struct page *p) {}
46static inline void swsusp_unset_page_free(struct page *p) {}
47#endif /* defined(CONFIG_PM) && defined(CONFIG_SOFTWARE_SUSPEND) */
1da177e4 48
1da177e4
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49void save_processor_state(void);
50void restore_processor_state(void);
51struct saved_context;
52void __save_processor_state(struct saved_context *ctxt);
53void __restore_processor_state(struct saved_context *ctxt);
7be98234 54
1da177e4 55#endif /* _LINUX_SWSUSP_H */