Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef _LINUX_SWSUSP_H
2#define _LINUX_SWSUSP_H
3
4#if defined(CONFIG_X86) || defined(CONFIG_FRV) || defined(CONFIG_PPC32)
5#include <asm/suspend.h>
6#endif
7#include <linux/swap.h>
8#include <linux/notifier.h>
9#include <linux/config.h>
10#include <linux/init.h>
11#include <linux/pm.h>
12
13/* page backup entry */
14typedef struct pbe {
15 unsigned long address; /* address of the copy */
16 unsigned long orig_address; /* original address of page */
17 swp_entry_t swap_address;
18
19 struct pbe *next; /* also used as scratch space at
20 * end of page (see link, diskpage)
21 */
22} suspend_pagedir_t;
23
24#define for_each_pbe(pbe, pblist) \
25 for (pbe = pblist ; pbe ; pbe = pbe->next)
26
27#define PBES_PER_PAGE (PAGE_SIZE/sizeof(struct pbe))
28#define PB_PAGE_SKIP (PBES_PER_PAGE-1)
29
30#define for_each_pb_page(pbe, pblist) \
31 for (pbe = pblist ; pbe ; pbe = (pbe+PB_PAGE_SKIP)->next)
32
33
34#define SWAP_FILENAME_MAXLENGTH 32
35
36
37extern dev_t swsusp_resume_device;
38
39/* mm/vmscan.c */
40extern int shrink_mem(void);
41
42/* mm/page_alloc.c */
43extern void drain_local_pages(void);
44extern void mark_free_pages(struct zone *zone);
45
46#ifdef CONFIG_PM
47/* kernel/power/swsusp.c */
48extern int software_suspend(void);
49
50extern int pm_prepare_console(void);
51extern void pm_restore_console(void);
52
53#else
54static inline int software_suspend(void)
55{
56 printk("Warning: fake suspend called\n");
57 return -EPERM;
58}
59#endif
60
61#ifdef CONFIG_SUSPEND_SMP
62extern void disable_nonboot_cpus(void);
63extern void enable_nonboot_cpus(void);
64#else
65static inline void disable_nonboot_cpus(void) {}
66static inline void enable_nonboot_cpus(void) {}
67#endif
68
69void save_processor_state(void);
70void restore_processor_state(void);
71struct saved_context;
72void __save_processor_state(struct saved_context *ctxt);
73void __restore_processor_state(struct saved_context *ctxt);
74
75#endif /* _LINUX_SWSUSP_H */