linux/arch/x86/include/asm/suspend_32.h
Ondrej Zary 85a0e75397 PM / x86: Save/restore MISC_ENABLE register
Save/restore MISC_ENABLE register on suspend/resume.
This fixes OOPS (invalid opcode) on resume from STR on Asus P4P800-VM,
which wakes up with MWAIT disabled.

Fixes https://bugzilla.kernel.org/show_bug.cgi?id=15385

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Tested-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-06-08 00:32:49 +02:00

30 lines
656 B
C

/*
* 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;
u64 misc_enable;
bool misc_enable_saved;
struct desc_ptr gdt;
struct desc_ptr idt;
u16 ldt;
u16 tss;
unsigned long tr;
unsigned long safety;
unsigned long return_address;
} __attribute__((packed));
#endif /* _ASM_X86_SUSPEND_32_H */