1 files changed, 66 insertions, 0 deletions

diff --git a/include/asm-i386/suspend.h b/include/asm-i386/suspend.h
new file mode 100644
index 000000000000..dfc1114c1b6f
--- /dev/null
+++ b/include/asm-i386/suspend.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2001-2002 Pavel Machek <pavel@suse.cz>
+ * Based on code
+ * Copyright 2001 Patrick Mochel <mochel@osdl.org>
+ */
+#include <asm/desc.h>
+#include <asm/i387.h>
+
+static inline int
+arch_prepare_suspend(void)
+{
+        /* If you want to make non-PSE machine work, turn off paging
+           in swsusp_arch_suspend. swsusp_pg_dir should have identity mapping, so
+           it could work...  */
+        if (!cpu_has_pse) {
+                printk(KERN_ERR "PSE is required for swsusp.\n");
+                return -EPERM;
+        }
+        return 0;
+}
+
+/* image of the saved processor state */
+struct saved_context {
+        u16 es, fs, gs, ss;
+        unsigned long cr0, cr2, cr3, cr4;
+        u16 gdt_pad;
+        u16 gdt_limit;
+        unsigned long gdt_base;
+        u16 idt_pad;
+        u16 idt_limit;
+        unsigned long idt_base;
+        u16 ldt;
+        u16 tss;
+        unsigned long tr;
+        unsigned long safety;
+        unsigned long return_address;
+} __attribute__((packed));
+
+#define loaddebug(thread,register) \
+               __asm__("movl %0,%%db" #register  \
+                       : /* no output */ \
+                       :"r" ((thread)->debugreg[register]))
+
+#ifdef CONFIG_ACPI_SLEEP
+extern unsigned long saved_eip;
+extern unsigned long saved_esp;
+extern unsigned long saved_ebp;
+extern unsigned long saved_ebx;
+extern unsigned long saved_esi;
+extern unsigned long saved_edi;
+
+static inline void acpi_save_register_state(unsigned long return_point)
+{
+        saved_eip = return_point;
+        asm volatile ("movl %%esp,%0" : "=m" (saved_esp));
+        asm volatile ("movl %%ebp,%0" : "=m" (saved_ebp));
+        asm volatile ("movl %%ebx,%0" : "=m" (saved_ebx));
+        asm volatile ("movl %%edi,%0" : "=m" (saved_edi));
+        asm volatile ("movl %%esi,%0" : "=m" (saved_esi));
+}
+
+#define acpi_restore_register_state()  do {} while (0)
+
+/* routines for saving/restoring kernel state */
+extern int acpi_save_state_mem(void);
+#endif