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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | #ifndef _LINUX_SWSUSP_H |
| 2 | #define _LINUX_SWSUSP_H |
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| 3 | |||
| 4 | #ifdef CONFIG_X86 |
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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/config.h> |
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| 10 | #include <linux/init.h> |
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| 11 | #include <linux/pm.h> |
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| 12 | |||
| 13 | #ifdef CONFIG_PM |
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| 14 | /* page backup entry */ |
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| 15 | typedef struct pbe { |
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| 16 | unsigned long address; /* address of the copy */ |
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| 17 | unsigned long orig_address; /* original address of page */ |
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| 18 | swp_entry_t swap_address; |
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| 19 | swp_entry_t dummy; /* we need scratch space at |
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| 20 | * end of page (see link, diskpage) |
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| 21 | */ |
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| 22 | } suspend_pagedir_t; |
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| 23 | |||
| 24 | #define SWAP_FILENAME_MAXLENGTH 32 |
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| 25 | |||
| 26 | struct suspend_header { |
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| 27 | __u32 version_code; |
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| 28 | unsigned long num_physpages; |
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| 29 | char machine[8]; |
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| 30 | char version[20]; |
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| 31 | int num_cpus; |
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| 32 | int page_size; |
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| 33 | suspend_pagedir_t *suspend_pagedir; |
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| 34 | unsigned int num_pbes; |
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| 35 | struct swap_location { |
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| 36 | char filename[SWAP_FILENAME_MAXLENGTH]; |
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| 37 | } swap_location[MAX_SWAPFILES]; |
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| 38 | }; |
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| 39 | |||
| 40 | #define SUSPEND_PD_PAGES(x) (((x)*sizeof(struct pbe))/PAGE_SIZE+1) |
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| 41 | |||
| 42 | /* mm/vmscan.c */ |
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| 43 | extern int shrink_mem(void); |
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| 44 | |||
| 45 | /* mm/page_alloc.c */ |
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| 46 | extern void drain_local_pages(void); |
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| 47 | |||
| 48 | extern unsigned int nr_copy_pages __nosavedata; |
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| 49 | extern suspend_pagedir_t *pagedir_nosave __nosavedata; |
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| 50 | #endif /* CONFIG_PM */ |
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| 51 | |||
| 52 | #ifdef CONFIG_SOFTWARE_SUSPEND |
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| 53 | |||
| 54 | extern unsigned char software_suspend_enabled; |
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| 55 | |||
| 56 | extern void software_suspend(void); |
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| 57 | #else /* CONFIG_SOFTWARE_SUSPEND */ |
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| 58 | static inline void software_suspend(void) |
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| 59 | { |
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| 60 | printk("Warning: fake suspend called\n"); |
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| 61 | } |
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| 62 | #endif /* CONFIG_SOFTWARE_SUSPEND */ |
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| 63 | |||
| 64 | |||
| 65 | #ifdef CONFIG_PM |
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| 66 | extern void refrigerator(unsigned long); |
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| 67 | |||
| 68 | #else |
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| 69 | static inline void refrigerator(unsigned long flag) |
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| 70 | { |
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| 71 | |||
| 72 | } |
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| 73 | #endif /* CONFIG_PM */ |
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| 74 | |||
| 75 | #endif /* _LINUX_SWSUSP_H */ |