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 *);
22 extern void die_nmi(char *str, struct pt_regs *regs, int do_panic);
23 extern void nmi_watchdog_default(void);
24 extern int check_nmi_watchdog(void);
25 extern int nmi_watchdog_enabled;
26 extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
27 extern int avail_to_resrv_perfctr_nmi(unsigned int);
28 extern int reserve_perfctr_nmi(unsigned int);
29 extern void release_perfctr_nmi(unsigned int);
30 extern int reserve_evntsel_nmi(unsigned int);
31 extern void release_evntsel_nmi(unsigned int);
33 extern void setup_apic_nmi_watchdog(void *);
34 extern void stop_apic_nmi_watchdog(void *);
35 extern void disable_timer_nmi_watchdog(void);
36 extern void enable_timer_nmi_watchdog(void);
37 extern int nmi_watchdog_tick(struct pt_regs *regs, unsigned reason);
39 extern atomic_t nmi_active;
40 extern unsigned int nmi_watchdog;
41 #define NMI_DISABLED -1
44 #define NMI_LOCAL_APIC 2
46 #define NMI_DEFAULT NMI_DISABLED
50 extern int proc_nmi_enabled(struct ctl_table *, int , struct file *,
51 void __user *, size_t *, loff_t *);
52 extern int unknown_nmi_panic;
54 void __trigger_all_cpu_backtrace(void);
55 #define trigger_all_cpu_backtrace() __trigger_all_cpu_backtrace()
57 static inline void localise_nmi_watchdog(void)
59 if (nmi_watchdog == NMI_IO_APIC)
60 nmi_watchdog = NMI_LOCAL_APIC;
64 void lapic_watchdog_stop(void);
65 int lapic_watchdog_init(unsigned nmi_hz);
66 int lapic_wd_event(unsigned nmi_hz);
67 unsigned lapic_adjust_nmi_hz(unsigned hz);
68 int lapic_watchdog_ok(void);
69 void disable_lapic_nmi_watchdog(void);
70 void enable_lapic_nmi_watchdog(void);
72 void restart_nmi(void);