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#ifndef _LINUX_SWSUSP_H
#define _LINUX_SWSUSP_H

#ifdef CONFIG_X86
#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>

#ifdef CONFIG_PM
/* 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;      
        swp_entry_t dummy;              /* we need scratch space at
                                         * end of page (see link, diskpage)
                                         */
} suspend_pagedir_t;

#define SWAP_FILENAME_MAXLENGTH 32

struct suspend_header {
        __u32 version_code;
        unsigned long num_physpages;
        char machine[8];
        char version[20];
        int num_cpus;
        int page_size;
        suspend_pagedir_t *suspend_pagedir;
        unsigned int num_pbes;
        struct swap_location {
                char filename[SWAP_FILENAME_MAXLENGTH];
        } swap_location[MAX_SWAPFILES];
};

#define SUSPEND_PD_PAGES(x)     (((x)*sizeof(struct pbe))/PAGE_SIZE+1)
   
/* mm/vmscan.c */
extern int shrink_mem(void);

/* mm/page_alloc.c */
extern void drain_local_pages(void);

extern unsigned int nr_copy_pages __nosavedata;
extern suspend_pagedir_t *pagedir_nosave __nosavedata;
#endif /* CONFIG_PM */

#ifdef CONFIG_SOFTWARE_SUSPEND

extern unsigned char software_suspend_enabled;

extern void software_suspend(void);
#else   /* CONFIG_SOFTWARE_SUSPEND */
static inline void software_suspend(void)
{
        printk("Warning: fake suspend called\n");
}
#endif  /* CONFIG_SOFTWARE_SUSPEND */


#ifdef CONFIG_PM
extern void refrigerator(unsigned long);

#else
static inline void refrigerator(unsigned long flag)
{

}
#endif  /* CONFIG_PM */

#endif /* _LINUX_SWSUSP_H */