mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
940d67f6b9
This patch introduces a new register_nosave_region_late function that can be called from initcalls when register_nosave_region can no longer be used because it uses bootmem. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Paul Mackerras <paulus@samba.org>
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
#ifndef _LINUX_SWSUSP_H
|
|
#define _LINUX_SWSUSP_H
|
|
|
|
#if defined(CONFIG_X86) || defined(CONFIG_FRV) || defined(CONFIG_PPC32) || defined(CONFIG_PPC64)
|
|
#include <asm/suspend.h>
|
|
#endif
|
|
#include <linux/swap.h>
|
|
#include <linux/notifier.h>
|
|
#include <linux/init.h>
|
|
#include <linux/pm.h>
|
|
#include <linux/mm.h>
|
|
|
|
/* struct pbe is used for creating lists of pages that should be restored
|
|
* atomically during the resume from disk, because the page frames they have
|
|
* occupied before the suspend are in use.
|
|
*/
|
|
struct pbe {
|
|
void *address; /* address of the copy */
|
|
void *orig_address; /* original address of a page */
|
|
struct pbe *next;
|
|
};
|
|
|
|
/* mm/page_alloc.c */
|
|
extern void drain_local_pages(void);
|
|
extern void mark_free_pages(struct zone *zone);
|
|
|
|
#if defined(CONFIG_PM) && defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE)
|
|
extern int pm_prepare_console(void);
|
|
extern void pm_restore_console(void);
|
|
#else
|
|
static inline int pm_prepare_console(void) { return 0; }
|
|
static inline void pm_restore_console(void) {}
|
|
#endif
|
|
|
|
#if defined(CONFIG_PM) && defined(CONFIG_SOFTWARE_SUSPEND)
|
|
/* kernel/power/snapshot.c */
|
|
extern void __register_nosave_region(unsigned long b, unsigned long e, int km);
|
|
static inline void register_nosave_region(unsigned long b, unsigned long e)
|
|
{
|
|
__register_nosave_region(b, e, 0);
|
|
}
|
|
static inline void register_nosave_region_late(unsigned long b, unsigned long e)
|
|
{
|
|
__register_nosave_region(b, e, 1);
|
|
}
|
|
extern int swsusp_page_is_forbidden(struct page *);
|
|
extern void swsusp_set_page_free(struct page *);
|
|
extern void swsusp_unset_page_free(struct page *);
|
|
extern unsigned long get_safe_page(gfp_t gfp_mask);
|
|
#else
|
|
static inline void register_nosave_region(unsigned long b, unsigned long e) {}
|
|
static inline void register_nosave_region_late(unsigned long b, unsigned long e) {}
|
|
static inline int swsusp_page_is_forbidden(struct page *p) { return 0; }
|
|
static inline void swsusp_set_page_free(struct page *p) {}
|
|
static inline void swsusp_unset_page_free(struct page *p) {}
|
|
#endif /* defined(CONFIG_PM) && defined(CONFIG_SOFTWARE_SUSPEND) */
|
|
|
|
void save_processor_state(void);
|
|
void restore_processor_state(void);
|
|
struct saved_context;
|
|
void __save_processor_state(struct saved_context *ctxt);
|
|
void __restore_processor_state(struct saved_context *ctxt);
|
|
|
|
#endif /* _LINUX_SWSUSP_H */
|