From bb8985586b7a906e116db835c64773b7a7d51663 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 17 Aug 2008 21:05:42 -0400 Subject: x86, um: ... and asm-x86 move Signed-off-by: Al Viro Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/suspend_64.h | 52 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 arch/x86/include/asm/suspend_64.h (limited to 'arch/x86/include/asm/suspend_64.h') diff --git a/arch/x86/include/asm/suspend_64.h b/arch/x86/include/asm/suspend_64.h new file mode 100644 index 000000000000..cf821dd310e8 --- /dev/null +++ b/arch/x86/include/asm/suspend_64.h @@ -0,0 +1,52 @@ +/* + * Copyright 2001-2003 Pavel Machek + * Based on code + * Copyright 2001 Patrick Mochel + */ +#ifndef ASM_X86__SUSPEND_64_H +#define ASM_X86__SUSPEND_64_H + +#include +#include + +static inline int arch_prepare_suspend(void) +{ + return 0; +} + +/* + * Image of the saved processor state, used by the low level ACPI suspend to + * RAM code and by the low level hibernation code. + * + * If you modify it, fix arch/x86/kernel/acpi/wakeup_64.S and make sure that + * __save/__restore_processor_state(), defined in arch/x86/kernel/suspend_64.c, + * still work as required. + */ +struct saved_context { + struct pt_regs regs; + u16 ds, es, fs, gs, ss; + unsigned long gs_base, gs_kernel_base, fs_base; + unsigned long cr0, cr2, cr3, cr4, cr8; + unsigned long efer; + 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) \ + set_debugreg((thread)->debugreg##register, register) + +/* routines for saving/restoring kernel state */ +extern int acpi_save_state_mem(void); +extern char core_restore_code; +extern char restore_registers; + +#endif /* ASM_X86__SUSPEND_64_H */ -- cgit v1.2.3