Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 61 | #ifdef CONFIG_SMP |
| 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 */ |