1/* 2 * include/asm-i386/mach-default/mach_traps.h 3 * 4 * Machine specific NMI handling for generic. 5 * Split out from traps.c by Osamu Tomita <tomita@cinet.co.jp> 6 */ 7#ifndef _MACH_TRAPS_H 8#define _MACH_TRAPS_H 9 10#include <asm/mc146818rtc.h> 11 12static inline void clear_mem_error(unsigned char reason) 13{ 14 reason = (reason & 0xf) | 4; 15 outb(reason, 0x61); 16} 17 18static inline unsigned char get_nmi_reason(void) 19{ 20 return inb(0x61); 21} 22 23static inline void reassert_nmi(void) 24{ 25 int old_reg = -1; 26 27 if (do_i_have_lock_cmos()) 28 old_reg = current_lock_cmos_reg(); 29 else 30 lock_cmos(0); /* register doesn't matter here */ 31 outb(0x8f, 0x70); 32 inb(0x71); /* dummy */ 33 outb(0x0f, 0x70); 34 inb(0x71); /* dummy */ 35 if (old_reg >= 0) 36 outb(old_reg, 0x70); 37 else 38 unlock_cmos(); 39} 40 41#endif /* !_MACH_TRAPS_H */ 42