linux-stable/arch/x86/include/asm/mach_traps.h
Ingo Molnar 1164dd0099 x86: move mach-default/*.h files to asm/
We are getting rid of subarchitecture support - move the hook files
to asm/. (These are now stale and should be replaced with more explicit
runtime mechanisms - but the transition is simpler this way.)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-29 14:16:51 +01:00

33 lines
694 B
C

/*
* Machine specific NMI handling for generic.
* Split out from traps.c by Osamu Tomita <tomita@cinet.co.jp>
*/
#ifndef _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H
#define _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H
#include <asm/mc146818rtc.h>
static inline unsigned char get_nmi_reason(void)
{
return inb(0x61);
}
static inline void reassert_nmi(void)
{
int old_reg = -1;
if (do_i_have_lock_cmos())
old_reg = current_lock_cmos_reg();
else
lock_cmos(0); /* register doesn't matter here */
outb(0x8f, 0x70);
inb(0x71); /* dummy */
outb(0x0f, 0x70);
inb(0x71); /* dummy */
if (old_reg >= 0)
outb(old_reg, 0x70);
else
unlock_cmos();
}
#endif /* _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H */