Edit File: mach_traps.h
/* * 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> #define NMI_REASON_PORT 0x61 #define NMI_REASON_SERR 0x80 #define NMI_REASON_IOCHK 0x40 #define NMI_REASON_MASK (NMI_REASON_SERR | NMI_REASON_IOCHK) #define NMI_REASON_CLEAR_SERR 0x04 #define NMI_REASON_CLEAR_IOCHK 0x08 #define NMI_REASON_CLEAR_MASK 0x0f static inline unsigned char default_get_nmi_reason(void) { return inb(NMI_REASON_PORT); } 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 */