suspend.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:2k
- #ifndef _LINUX_SWSUSP_H
- #define _LINUX_SWSUSP_H
- #if defined(CONFIG_X86) || defined(CONFIG_FRV) || defined(CONFIG_PPC32)
- #include <asm/suspend.h>
- #endif
- #include <linux/swap.h>
- #include <linux/notifier.h>
- #include <linux/config.h>
- #include <linux/init.h>
- #include <linux/pm.h>
- /* page backup entry */
- typedef struct pbe {
- unsigned long address; /* address of the copy */
- unsigned long orig_address; /* original address of page */
- swp_entry_t swap_address;
- struct pbe *next; /* also used as scratch space at
- * end of page (see link, diskpage)
- */
- } suspend_pagedir_t;
- #define for_each_pbe(pbe, pblist)
- for (pbe = pblist ; pbe ; pbe = pbe->next)
- #define PBES_PER_PAGE (PAGE_SIZE/sizeof(struct pbe))
- #define PB_PAGE_SKIP (PBES_PER_PAGE-1)
- #define for_each_pb_page(pbe, pblist)
- for (pbe = pblist ; pbe ; pbe = (pbe+PB_PAGE_SKIP)->next)
- #define SWAP_FILENAME_MAXLENGTH 32
- extern dev_t swsusp_resume_device;
-
- /* mm/vmscan.c */
- extern int shrink_mem(void);
- /* mm/page_alloc.c */
- 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);
- extern int pm_prepare_console(void);
- extern void pm_restore_console(void);
- #else
- static inline int software_suspend(void)
- {
- printk("Warning: fake suspend calledn");
- return -EPERM;
- }
- #endif
- #ifdef CONFIG_SUSPEND_SMP
- extern void disable_nonboot_cpus(void);
- extern void enable_nonboot_cpus(void);
- #else
- static inline void disable_nonboot_cpus(void) {}
- static inline void enable_nonboot_cpus(void) {}
- #endif
- 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);
- extern unsigned long get_usable_page(unsigned gfp_mask);
- extern void free_eaten_memory(void);
- #endif /* _LINUX_SWSUSP_H */