summaryrefslogtreecommitdiffstats
path: root/include/linux/suspend.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/suspend.h')
-rw-r--r--include/linux/suspend.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
new file mode 100644
index 0000000..2bf0d5f
--- /dev/null
+++ b/include/linux/suspend.h
@@ -0,0 +1,75 @@
+#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_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 */
OpenPOWER on IntegriCloud