aboutsummaryrefslogtreecommitdiff
path: root/include/asm-i386/nmi.h
blob: 67d99479999938450c2361656f7aeaa7911e3c04 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
/*
 *  linux/include/asm-i386/nmi.h
 */
#ifndef ASM_NMI_H
#define ASM_NMI_H

#include <linux/pm.h>

struct pt_regs;

typedef int (*nmi_callback_t)(struct pt_regs * regs, int cpu);

/**
 * set_nmi_callback
 *
 * Set a handler for an NMI. Only one handler may be
 * set. Return 1 if the NMI was handled.
 */
void set_nmi_callback(nmi_callback_t callback);

/**
 * unset_nmi_callback
 *
 * Remove the handler previously set.
 */
void unset_nmi_callback(void);

extern void setup_apic_nmi_watchdog (void);
extern int reserve_lapic_nmi(void);
extern void release_lapic_nmi(void);
extern void disable_timer_nmi_watchdog(void);
extern void enable_timer_nmi_watchdog(void);
extern void nmi_watchdog_tick (struct pt_regs * regs);

extern unsigned int nmi_watchdog;
#define NMI_DEFAULT     -1
#define NMI_NONE	0
#define NMI_IO_APIC	1
#define NMI_LOCAL_APIC	2
#define NMI_INVALID	3

#endif /* ASM_NMI_H */