5a72e04df5
Using CPU hotplug to support suspend/resume SMP. Both S3 and S4 use disable/enable_nonboot_cpus API. The S4 part is based on Pavel's original S4 SMP patch. Signed-off-by: Li Shaohua<shaohua.li@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
75 lines
1.8 KiB
C
75 lines
1.8 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/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 called\n");
|
|
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);
|
|
|
|
#endif /* _LINUX_SWSUSP_H */
|