kernel-ark/include/asm-i386/mach-default/mach_traps.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

42 lines
795 B
C

/*
* include/asm-i386/mach-default/mach_traps.h
*
* Machine specific NMI handling for generic.
* Split out from traps.c by Osamu Tomita <tomita@cinet.co.jp>
*/
#ifndef _MACH_TRAPS_H
#define _MACH_TRAPS_H
#include <asm/mc146818rtc.h>
static inline void clear_mem_error(unsigned char reason)
{
reason = (reason & 0xf) | 4;
outb(reason, 0x61);
}
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 /* !_MACH_TRAPS_H */