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 */
20 #define for_each_pbe(pbe, pblist) \
21 for (pbe = pblist ; pbe ; pbe = pbe->next)
23 #define PBES_PER_PAGE (PAGE_SIZE/sizeof(struct pbe))
24 #define PB_PAGE_SKIP (PBES_PER_PAGE-1)
26 #define for_each_pb_page(pbe, pblist) \
27 for (pbe = pblist ; pbe ; pbe = (pbe+PB_PAGE_SKIP)->next)
30 #define SWAP_FILENAME_MAXLENGTH 32
33 extern dev_t swsusp_resume_device;
36 extern int shrink_mem(void);
39 extern void drain_local_pages(void);
40 extern void mark_free_pages(struct zone *zone);
43 /* kernel/power/swsusp.c */
44 extern int software_suspend(void);
46 extern int pm_prepare_console(void);
47 extern void pm_restore_console(void);
50 static inline int software_suspend(void)
52 printk("Warning: fake suspend called\n");
57 #ifdef CONFIG_SUSPEND_SMP
58 extern void disable_nonboot_cpus(void);
59 extern void enable_nonboot_cpus(void);
61 static inline void disable_nonboot_cpus(void) {}
62 static inline void enable_nonboot_cpus(void) {}
65 void save_processor_state(void);
66 void restore_processor_state(void);
68 void __save_processor_state(struct saved_context *ctxt);
69 void __restore_processor_state(struct saved_context *ctxt);
70 unsigned long get_safe_page(gfp_t gfp_mask);
73 * XXX: We try to keep some more pages free so that I/O operations succeed
74 * without paging. Might this be more?
76 #define PAGES_FOR_IO 1024
78 #endif /* _LINUX_SWSUSP_H */