x86, um: ... and asm-x86 move

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/arch/x86/include/asm/suspend_32.h b/arch/x86/include/asm/suspend_32.h
new file mode 100644
index 00000000000..acb6d4d491f
--- /dev/null
+++ b/arch/x86/include/asm/suspend_32.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2001-2002 Pavel Machek <pavel@suse.cz>
+ * Based on code
+ * Copyright 2001 Patrick Mochel <mochel@osdl.org>
+ */
+#ifndef ASM_X86__SUSPEND_32_H
+#define ASM_X86__SUSPEND_32_H
+
+#include <asm/desc.h>
+#include <asm/i387.h>
+
+static inline int arch_prepare_suspend(void) { return 0; }
+
+/* image of the saved processor state */
+struct saved_context {
+        u16 es, fs, gs, ss;
+        unsigned long cr0, cr2, cr3, cr4;
+        struct desc_ptr gdt;
+        struct desc_ptr idt;
+        u16 ldt;
+        u16 tss;
+        unsigned long tr;
+        unsigned long safety;
+        unsigned long return_address;
+} __attribute__((packed));
+
+#ifdef CONFIG_ACPI
+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
+
+#endif /* ASM_X86__SUSPEND_32_H */