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Commit | Line | Data |
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1da177e4 LT |
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 | ||
12 | static inline void clear_mem_error(unsigned char reason) | |
13 | { | |
14 | reason = (reason & 0xf) | 4; | |
15 | outb(reason, 0x61); | |
16 | } | |
17 | ||
18 | static inline unsigned char get_nmi_reason(void) | |
19 | { | |
20 | return inb(0x61); | |
21 | } | |
22 | ||
23 | static 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 */ |