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-rw-r--r--include/linux/suspend.h37
1 files changed, 17 insertions, 20 deletions
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index bf99bd49f8e..9d2aa1a12aa 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -1,13 +1,14 @@
#ifndef _LINUX_SWSUSP_H
#define _LINUX_SWSUSP_H
-#if defined(CONFIG_X86) || defined(CONFIG_FRV) || defined(CONFIG_PPC32)
+#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
@@ -23,36 +24,32 @@ struct pbe {
extern void drain_local_pages(void);
extern void mark_free_pages(struct zone *zone);
-#ifdef CONFIG_PM
-/* kernel/power/swsusp.c */
-extern int software_suspend(void);
-
-#if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE)
+#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 /* defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) */
+#endif
+
+#if defined(CONFIG_PM) && defined(CONFIG_SOFTWARE_SUSPEND)
+/* kernel/power/snapshot.c */
+extern void __init register_nosave_region(unsigned long, unsigned long);
+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 int software_suspend(void)
-{
- printk("Warning: fake suspend called\n");
- return -ENOSYS;
-}
-#endif /* CONFIG_PM */
+static inline void register_nosave_region(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);
-unsigned long get_safe_page(gfp_t gfp_mask);
-
-/*
- * XXX: We try to keep some more pages free so that I/O operations succeed
- * without paging. Might this be more?
- */
-#define PAGES_FOR_IO 1024
#endif /* _LINUX_SWSUSP_H */