| 1 | #ifndef _LINUX_SWSUSP_H |
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| 2 | #define _LINUX_SWSUSP_H |
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| 3 | |
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| 4 | #if defined(CONFIG_X86) || defined(CONFIG_FRV) || defined(CONFIG_PPC32) |
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| 5 | #include <asm/suspend.h> |
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| 6 | #endif |
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| 7 | #include <linux/swap.h> |
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| 8 | #include <linux/notifier.h> |
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| 9 | #include <linux/init.h> |
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| 10 | #include <linux/pm.h> |
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| 11 | |
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| 12 | /* page backup entry */ |
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| 13 | typedef struct pbe { |
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| 14 | unsigned long address; /* address of the copy */ |
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| 15 | unsigned long orig_address; /* original address of page */ |
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| 16 | swp_entry_t swap_address; |
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| 17 | |
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| 18 | struct pbe *next; /* also used as scratch space at |
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| 19 | * end of page (see link, diskpage) |
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| 20 | */ |
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| 21 | } suspend_pagedir_t; |
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| 22 | |
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| 23 | #define for_each_pbe(pbe, pblist) \ |
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| 24 | for (pbe = pblist ; pbe ; pbe = pbe->next) |
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| 25 | |
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| 26 | #define PBES_PER_PAGE (PAGE_SIZE/sizeof(struct pbe)) |
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| 27 | #define PB_PAGE_SKIP (PBES_PER_PAGE-1) |
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| 28 | |
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| 29 | #define for_each_pb_page(pbe, pblist) \ |
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| 30 | for (pbe = pblist ; pbe ; pbe = (pbe+PB_PAGE_SKIP)->next) |
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| 31 | |
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| 32 | |
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| 33 | #define SWAP_FILENAME_MAXLENGTH 32 |
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| 34 | |
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| 35 | |
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| 36 | extern dev_t swsusp_resume_device; |
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| 37 | |
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| 38 | /* mm/vmscan.c */ |
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| 39 | extern int shrink_mem(void); |
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| 40 | |
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| 41 | /* mm/page_alloc.c */ |
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| 42 | extern void drain_local_pages(void); |
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| 43 | extern void mark_free_pages(struct zone *zone); |
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| 44 | |
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| 45 | #ifdef CONFIG_PM |
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| 46 | /* kernel/power/swsusp.c */ |
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| 47 | extern int software_suspend(void); |
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| 48 | |
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| 49 | extern int pm_prepare_console(void); |
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| 50 | extern void pm_restore_console(void); |
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| 51 | |
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| 52 | #else |
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| 53 | static inline int software_suspend(void) |
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| 54 | { |
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| 55 | printk("Warning: fake suspend called\n"); |
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| 56 | return -EPERM; |
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| 57 | } |
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| 58 | #endif |
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| 59 | |
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| 60 | #ifdef CONFIG_SMP |
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| 61 | extern void disable_nonboot_cpus(void); |
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| 62 | extern void enable_nonboot_cpus(void); |
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| 63 | #else |
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| 64 | static inline void disable_nonboot_cpus(void) {} |
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| 65 | static inline void enable_nonboot_cpus(void) {} |
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| 66 | #endif |
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| 67 | |
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| 68 | void save_processor_state(void); |
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| 69 | void restore_processor_state(void); |
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| 70 | struct saved_context; |
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| 71 | void __save_processor_state(struct saved_context *ctxt); |
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| 72 | void __restore_processor_state(struct saved_context *ctxt); |
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| 73 | |
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| 74 | #endif /* _LINUX_SWSUSP_H */ |
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