1 #ifndef _ASM_X86_NMI_H_
2 #define _ASM_X86_NMI_H_
8 #ifdef ARCH_HAS_NMI_WATCHDOG
13 * Check to see if a callback exists and execute it. Return 1
14 * if the handler exists and was handled successfully.
16 int do_nmi_callback(struct pt_regs
*regs
, int cpu
);
19 extern void default_do_nmi(struct pt_regs
*);
20 extern void die_nmi(char *str
, struct pt_regs
*regs
, int do_panic
);
21 extern void nmi_watchdog_default(void);
23 #define nmi_watchdog_default() do {} while (0)
26 extern int check_nmi_watchdog(void);
27 extern int nmi_watchdog_enabled
;
28 extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
29 extern int avail_to_resrv_perfctr_nmi(unsigned int);
30 extern int reserve_perfctr_nmi(unsigned int);
31 extern void release_perfctr_nmi(unsigned int);
32 extern int reserve_evntsel_nmi(unsigned int);
33 extern void release_evntsel_nmi(unsigned int);
35 extern void setup_apic_nmi_watchdog(void *);
36 extern void stop_apic_nmi_watchdog(void *);
37 extern void disable_timer_nmi_watchdog(void);
38 extern void enable_timer_nmi_watchdog(void);
39 extern int nmi_watchdog_tick(struct pt_regs
*regs
, unsigned reason
);
41 extern atomic_t nmi_active
;
42 extern unsigned int nmi_watchdog
;
43 #define NMI_DISABLED -1
46 #define NMI_LOCAL_APIC 2
48 #define NMI_DEFAULT NMI_DISABLED
52 extern int proc_nmi_enabled(struct ctl_table
*, int , struct file
*,
53 void __user
*, size_t *, loff_t
*);
54 extern int unknown_nmi_panic
;
56 void __trigger_all_cpu_backtrace(void);
57 #define trigger_all_cpu_backtrace() __trigger_all_cpu_backtrace()
59 static inline void localise_nmi_watchdog(void)
61 if (nmi_watchdog
== NMI_IO_APIC
)
62 nmi_watchdog
= NMI_LOCAL_APIC
;
66 void lapic_watchdog_stop(void);
67 int lapic_watchdog_init(unsigned nmi_hz
);
68 int lapic_wd_event(unsigned nmi_hz
);
69 unsigned lapic_adjust_nmi_hz(unsigned hz
);
70 int lapic_watchdog_ok(void);
71 void disable_lapic_nmi_watchdog(void);
72 void enable_lapic_nmi_watchdog(void);
74 void restart_nmi(void);
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