1 #include <linux/suspend.h>
2 #include <linux/utsname.h>
3
4 /* With SUSPEND_CONSOLE defined, it suspend looks *really* cool, but
5 we probably do not take enough locks for switching consoles, etc,
6 so bad things might happen.
7 */
8 #if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE)
9 #define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1)
10 #endif
11
12
13 struct swsusp_info {
14 struct new_utsname uts;
15 u32 version_code;
16 unsigned long num_physpages;
17 int cpus;
18 unsigned long image_pages;
19 unsigned long pagedir_pages;
20 suspend_pagedir_t * suspend_pagedir;
21 swp_entry_t pagedir[768];
22 } __attribute__((aligned(PAGE_SIZE)));
23
24
25
26 #ifdef CONFIG_SOFTWARE_SUSPEND
27 extern int pm_suspend_disk(void);
28
29 #else
30 static inline int pm_suspend_disk(void)
31 {
32 return -EPERM;
33 }
34 #endif
35 extern struct semaphore pm_sem;
36 #define power_attr(_name) \
37 static struct subsys_attribute _name##_attr = { \
38 .attr = { \
39 .name = __stringify(_name), \
40 .mode = 0644, \
41 }, \
42 .show = _name##_show, \
43 .store = _name##_store, \
44 }
45
46 extern struct subsystem power_subsys;
47
48 extern int freeze_processes(void);
49 extern void thaw_processes(void);
50
51 extern int pm_prepare_console(void);
52 extern void pm_restore_console(void);
53
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