kernel_optimize_test/kernel/power/power.h

53 lines
1.2 KiB
C
Raw Normal View History

#include <linux/suspend.h>
#include <linux/utsname.h>
/* With SUSPEND_CONSOLE defined, it suspend looks *really* cool, but
we probably do not take enough locks for switching consoles, etc,
so bad things might happen.
*/
#if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE)
#define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1)
#endif
struct swsusp_info {
struct new_utsname uts;
u32 version_code;
unsigned long num_physpages;
int cpus;
unsigned long image_pages;
unsigned long pagedir_pages;
suspend_pagedir_t * suspend_pagedir;
swp_entry_t pagedir[768];
} __attribute__((aligned(PAGE_SIZE)));
#ifdef CONFIG_SOFTWARE_SUSPEND
extern int pm_suspend_disk(void);
#else
static inline int pm_suspend_disk(void)
{
return -EPERM;
}
#endif
extern struct semaphore pm_sem;
#define power_attr(_name) \
static struct subsys_attribute _name##_attr = { \
.attr = { \
.name = __stringify(_name), \
.mode = 0644, \
}, \
.show = _name##_show, \
.store = _name##_store, \
}
extern struct subsystem power_subsys;
extern int freeze_processes(void);
extern void thaw_processes(void);
extern int pm_prepare_console(void);
extern void pm_restore_console(void);