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/init.h> 10 #include <linux/pm.h> 11 #include <linux/mm.h> 12 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 */ 17 struct pbe { 18 void *address; /* address of the copy */ 19 void *orig_address; /* original address of a page */ 20 struct pbe *next; 21 }; 22 23 /* mm/page_alloc.c */ 24 extern void drain_local_pages(void); 25 extern void mark_free_pages(struct zone *zone); 26 27 #if defined(CONFIG_PM) && defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) 28 extern int pm_prepare_console(void); 29 extern void pm_restore_console(void); 30 #else 31 static inline int pm_prepare_console(void) { return 0; } 32 static inline void pm_restore_console(void) {} 33 #endif 34 35 #if defined(CONFIG_PM) && defined(CONFIG_SOFTWARE_SUSPEND) 36 /* kernel/power/snapshot.c */ 37 extern void __init register_nosave_region(unsigned long, unsigned long); 38 extern int swsusp_page_is_forbidden(struct page *); 39 extern void swsusp_set_page_free(struct page *); 40 extern void swsusp_unset_page_free(struct page *); 41 extern unsigned long get_safe_page(gfp_t gfp_mask); 42 #else 43 static inline void register_nosave_region(unsigned long b, unsigned long e) {} 44 static inline int swsusp_page_is_forbidden(struct page *p) { return 0; } 45 static inline void swsusp_set_page_free(struct page *p) {} 46 static inline void swsusp_unset_page_free(struct page *p) {} 47 #endif /* defined(CONFIG_PM) && defined(CONFIG_SOFTWARE_SUSPEND) */ 48 49 void save_processor_state(void); 50 void restore_processor_state(void); 51 struct saved_context; 52 void __save_processor_state(struct saved_context *ctxt); 53 void __restore_processor_state(struct saved_context *ctxt); 54 55 #endif /* _LINUX_SWSUSP_H */ 56