blob: 139d4c1a33a7c85a2989a8ab02ee1f6cee52d601 (
plain) (
blame)
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
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
#ifndef _ASM_X86_NMI_H
#define _ASM_X86_NMI_H
#include <linux/pm.h>
#include <asm/irq.h>
#include <asm/io.h>
#ifdef ARCH_HAS_NMI_WATCHDOG
/**
* do_nmi_callback
*
* Check to see if a callback exists and execute it. Return 1
* if the handler exists and was handled successfully.
*/
int do_nmi_callback(struct pt_regs *regs, int cpu);
extern void die_nmi(char *str, struct pt_regs *regs, int do_panic);
extern int check_nmi_watchdog(void);
extern int nmi_watchdog_enabled;
extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
extern int avail_to_resrv_perfctr_nmi(unsigned int);
extern int reserve_perfctr_nmi(unsigned int);
extern void release_perfctr_nmi(unsigned int);
extern int reserve_evntsel_nmi(unsigned int);
extern void release_evntsel_nmi(unsigned int);
extern void setup_apic_nmi_watchdog(void *);
extern void stop_apic_nmi_watchdog(void *);
extern void disable_timer_nmi_watchdog(void);
extern void enable_timer_nmi_watchdog(void);
extern int nmi_watchdog_tick(struct pt_regs *regs, unsigned reason);
extern void cpu_nmi_set_wd_enabled(void);
extern atomic_t nmi_active;
extern unsigned int nmi_watchdog;
#define NMI_NONE 0
#define NMI_IO_APIC 1
#define NMI_LOCAL_APIC 2
#define NMI_INVALID 3
struct ctl_table;
extern int proc_nmi_enabled(struct ctl_table *, int ,
void __user *, size_t *, loff_t *);
extern int unknown_nmi_panic;
void arch_trigger_all_cpu_backtrace(void);
#define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace
static inline void localise_nmi_watchdog(void)
{
if (nmi_watchdog == NMI_IO_APIC)
nmi_watchdog = NMI_LOCAL_APIC;
}
/* check if nmi_watchdog is active (ie was specified at boot) */
static inline int nmi_watchdog_active(void)
{
/*
* actually it should be:
* return (nmi_watchdog == NMI_LOCAL_APIC ||
* nmi_watchdog == NMI_IO_APIC)
* but since they are power of two we could use a
* cheaper way --cvg
*/
return nmi_watchdog & (NMI_LOCAL_APIC | NMI_IO_APIC);
}
#endif
void lapic_watchdog_stop(void);
int lapic_watchdog_init(unsigned nmi_hz);
int lapic_wd_event(unsigned nmi_hz);
unsigned lapic_adjust_nmi_hz(unsigned hz);
void disable_lapic_nmi_watchdog(void);
void enable_lapic_nmi_watchdog(void);
void stop_nmi(void);
void restart_nmi(void);
#endif /* _ASM_X86_NMI_H */
|
