1 #ifndef _LINUX_SWSUSP_H
2 #define _LINUX_SWSUSP_H
4 #if defined(CONFIG_X86) || defined(CONFIG_FRV) || defined(CONFIG_PPC32)
5 #include <asm/suspend.h>
7 #include <linux/swap.h>
8 #include <linux/notifier.h>
9 #include <linux/config.h>
10 #include <linux/init.h>
13 /* page backup entry */
15 unsigned long address; /* address of the copy */
16 unsigned long orig_address; /* original address of page */
17 swp_entry_t swap_address;
19 struct pbe *next; /* also used as scratch space at
20 * end of page (see link, diskpage)
24 #define for_each_pbe(pbe, pblist) \
25 for (pbe = pblist ; pbe ; pbe = pbe->next)
27 #define PBES_PER_PAGE (PAGE_SIZE/sizeof(struct pbe))
28 #define PB_PAGE_SKIP (PBES_PER_PAGE-1)
30 #define for_each_pb_page(pbe, pblist) \
31 for (pbe = pblist ; pbe ; pbe = (pbe+PB_PAGE_SKIP)->next)
34 #define SWAP_FILENAME_MAXLENGTH 32
37 extern dev_t swsusp_resume_device;
40 extern int shrink_mem(void);
43 extern void drain_local_pages(void);
44 extern void mark_free_pages(struct zone *zone);
47 /* kernel/power/swsusp.c */
48 extern int software_suspend(void);
50 extern int pm_prepare_console(void);
51 extern void pm_restore_console(void);
54 static inline int software_suspend(void)
56 printk("Warning: fake suspend called\n");
61 #ifdef CONFIG_SUSPEND_SMP
62 extern void disable_nonboot_cpus(void);
63 extern void enable_nonboot_cpus(void);
65 static inline void disable_nonboot_cpus(void) {}
66 static inline void enable_nonboot_cpus(void) {}
69 void save_processor_state(void);
70 void restore_processor_state(void);
72 void __save_processor_state(struct saved_context *ctxt);
73 void __restore_processor_state(struct saved_context *ctxt);
74 extern unsigned long get_usable_page(gfp_t gfp_mask);
75 extern void free_eaten_memory(void);
77 #endif /* _LINUX_SWSUSP_H */