3448097fcc
This reverts commits3e3318dee0[PATCH] swsusp: x86_64 mark special saveable/unsaveable pagesb6370d96e0[PATCH] swsusp: i386 mark special saveable/unsaveable pagesce4ab0012b[PATCH] swsusp: add architecture special saveable pages support because not only do they apparently cause page faults on x86, the infrastructure doesn't compile on powerpc. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
#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/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 */
|
|
struct pbe *next;
|
|
} 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);
|
|
|
|
#if 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) */
|
|
#else
|
|
static inline int software_suspend(void)
|
|
{
|
|
printk("Warning: fake suspend called\n");
|
|
return -EPERM;
|
|
}
|
|
#endif /* CONFIG_PM */
|
|
|
|
#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);
|
|
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 */
|