Linux 2.6.26-rc5
[linux-2.6/openmoko-kernel/knife-kernel.git] / include / asm-x86 / mach-default / mach_traps.h
blob2fe7705c0484ed074a5d0b2f9e2bf7acc88cd7cf
1 /*
2 * Machine specific NMI handling for generic.
3 * Split out from traps.c by Osamu Tomita <tomita@cinet.co.jp>
4 */
5 #ifndef _MACH_TRAPS_H
6 #define _MACH_TRAPS_H
8 #include <asm/mc146818rtc.h>
10 static inline void clear_mem_error(unsigned char reason)
12 reason = (reason & 0xf) | 4;
13 outb(reason, 0x61);
16 static inline unsigned char get_nmi_reason(void)
18 return inb(0x61);
21 static inline void reassert_nmi(void)
23 int old_reg = -1;
25 if (do_i_have_lock_cmos())
26 old_reg = current_lock_cmos_reg();
27 else
28 lock_cmos(0); /* register doesn't matter here */
29 outb(0x8f, 0x70);
30 inb(0x71); /* dummy */
31 outb(0x0f, 0x70);
32 inb(0x71); /* dummy */
33 if (old_reg >= 0)
34 outb(old_reg, 0x70);
35 else
36 unlock_cmos();
39 #endif /* !_MACH_TRAPS_H */