Release 4.14 arch/x86/include/asm/mach_traps.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 *  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);
}

Contributors
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CommitProp
Alan Cox
14
87.50%
1
33.33%
Jacob jun Pan
1
6.25%
1
33.33%
Huang Ying
1
6.25%
1
33.33%
Total
16
100.00%
3
100.00%



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();
}

Contributors
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Corey Minyard
40
53.33%
1
50.00%
Alan Cox
35
46.67%
1
50.00%
Total
75
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2
100.00%

#endif /* _ASM_X86_MACH_DEFAULT_MACH_TRAPS_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Alan Cox
55
41.35%
1
14.29%
Corey Minyard
43
32.33%
1
14.29%
Huang Ying
29
21.80%
1
14.29%
H. Peter Anvin
3
2.26%
1
14.29%
Greg Kroah-Hartman
1
0.75%
1
14.29%
Jacob jun Pan
1
0.75%
1
14.29%
Dave Jones
1
0.75%
1
14.29%
Total
133
100.00%
7
100.00%
Directory: arch/x86/include/asm

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