1 #include <linux/suspend.h> 2 #include <linux/utsname.h> 3 4 /* With SUSPEND_CONSOLE defined suspend looks *really* cool, but 5 we probably do not take enough locks for switching consoles, etc, 6 so bad things might happen. 7 */ 8 #if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) 9 #define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1) 10 #endif 11 12 struct swsusp_info { 13 struct new_utsname uts; 14 u32 version_code; 15 unsigned long num_physpages; 16 int cpus; 17 unsigned long image_pages; 18 unsigned long pages; 19 } __attribute__((aligned(PAGE_SIZE))); 20 21 22 23 #ifdef CONFIG_SOFTWARE_SUSPEND 24 extern int pm_suspend_disk(void); 25 26 #else 27 static inline int pm_suspend_disk(void) 28 { 29 return -EPERM; 30 } 31 #endif 32 extern struct semaphore pm_sem; 33 #define power_attr(_name) \ 34 static struct subsys_attribute _name##_attr = { \ 35 .attr = { \ 36 .name = __stringify(_name), \ 37 .mode = 0644, \ 38 }, \ 39 .show = _name##_show, \ 40 .store = _name##_store, \ 41 } 42 43 extern struct subsystem power_subsys; 44 45 extern int pm_prepare_console(void); 46 extern void pm_restore_console(void); 47 48 /* References to section boundaries */ 49 extern const void __nosave_begin, __nosave_end; 50 51 extern unsigned int nr_copy_pages; 52 extern struct pbe *pagedir_nosave; 53 54 /* Preferred image size in MB (default 500) */ 55 extern unsigned int image_size; 56 57 extern asmlinkage int swsusp_arch_suspend(void); 58 extern asmlinkage int swsusp_arch_resume(void); 59 60 extern unsigned int count_data_pages(void); 61 extern void free_pagedir(struct pbe *pblist); 62 extern void release_eaten_pages(void); 63 extern struct pbe *alloc_pagedir(unsigned nr_pages, gfp_t gfp_mask, int safe_needed); 64 extern void swsusp_free(void); 65 extern int alloc_data_pages(struct pbe *pblist, gfp_t gfp_mask, int safe_needed); 66 extern unsigned int snapshot_nr_pages(void); 67 extern struct pbe *snapshot_pblist(void); 68 extern void snapshot_pblist_set(struct pbe *pblist); 69