diff options
Diffstat (limited to 'kernel/power/power.h')
| -rw-r--r-- | kernel/power/power.h | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/kernel/power/power.h b/kernel/power/power.h index cd6a3493cc0..6c042b5ee14 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -1,7 +1,7 @@ #include <linux/suspend.h> #include <linux/utsname.h> -/* With SUSPEND_CONSOLE defined, it suspend looks *really* cool, but +/* With SUSPEND_CONSOLE defined suspend looks *really* cool, but we probably do not take enough locks for switching consoles, etc, so bad things might happen. */ @@ -9,6 +9,9 @@ #define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1) #endif +#define MAX_PBES ((PAGE_SIZE - sizeof(struct new_utsname) \ + - 4 - 3*sizeof(unsigned long) - sizeof(int) \ + - sizeof(void *)) / sizeof(swp_entry_t)) struct swsusp_info { struct new_utsname uts; @@ -18,7 +21,7 @@ struct swsusp_info { unsigned long image_pages; unsigned long pagedir_pages; suspend_pagedir_t * suspend_pagedir; - swp_entry_t pagedir[768]; + swp_entry_t pagedir[MAX_PBES]; } __attribute__((aligned(PAGE_SIZE))); @@ -50,3 +53,20 @@ extern void thaw_processes(void); extern int pm_prepare_console(void); extern void pm_restore_console(void); + + +/* References to section boundaries */ +extern const void __nosave_begin, __nosave_end; + +extern unsigned int nr_copy_pages; +extern suspend_pagedir_t *pagedir_nosave; +extern suspend_pagedir_t *pagedir_save; + +extern asmlinkage int swsusp_arch_suspend(void); +extern asmlinkage int swsusp_arch_resume(void); + +extern void free_pagedir(struct pbe *pblist); +extern struct pbe *alloc_pagedir(unsigned nr_pages, gfp_t gfp_mask, int safe_needed); +extern void create_pbe_list(struct pbe *pblist, unsigned nr_pages); +extern void swsusp_free(void); +extern int alloc_data_pages(struct pbe *pblist, gfp_t gfp_mask, int safe_needed); |