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
);
20 /** Replace the PM callback routine for NMI. */
21 struct pm_dev
*set_nmi_pm_callback(pm_callback callback
);
23 /** Unset the PM callback routine back to the default. */
24 void unset_nmi_pm_callback(struct pm_dev
*dev
);
28 static inline struct pm_dev
*set_nmi_pm_callback(pm_callback callback
)
33 static inline void unset_nmi_pm_callback(struct pm_dev
*dev
)
37 #endif /* CONFIG_PM */
40 extern void default_do_nmi(struct pt_regs
*);
41 extern void die_nmi(char *str
, struct pt_regs
*regs
, int do_panic
);
44 extern int check_nmi_watchdog(void);
45 extern int nmi_watchdog_enabled
;
46 extern int unknown_nmi_panic
;
47 extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
48 extern int avail_to_resrv_perfctr_nmi(unsigned int);
49 extern int reserve_perfctr_nmi(unsigned int);
50 extern void release_perfctr_nmi(unsigned int);
51 extern int reserve_evntsel_nmi(unsigned int);
52 extern void release_evntsel_nmi(unsigned int);
53 extern void nmi_watchdog_default(void);
55 extern void setup_apic_nmi_watchdog(void *);
56 extern void stop_apic_nmi_watchdog(void *);
57 extern void disable_timer_nmi_watchdog(void);
58 extern void enable_timer_nmi_watchdog(void);
59 extern int nmi_watchdog_tick(struct pt_regs
*regs
, unsigned reason
);
61 extern atomic_t nmi_active
;
62 extern unsigned int nmi_watchdog
;
63 #define NMI_DISABLED -1
66 #define NMI_LOCAL_APIC 2
68 #define NMI_DEFAULT NMI_DISABLED
72 extern int proc_nmi_enabled(struct ctl_table
*, int , struct file
*,
73 void __user
*, size_t *, loff_t
*);
74 extern int unknown_nmi_panic
;
76 void __trigger_all_cpu_backtrace(void);
77 #define trigger_all_cpu_backtrace() __trigger_all_cpu_backtrace()
81 void lapic_watchdog_stop(void);
82 int lapic_watchdog_init(unsigned nmi_hz
);
83 int lapic_wd_event(unsigned nmi_hz
);
84 unsigned lapic_adjust_nmi_hz(unsigned hz
);
85 int lapic_watchdog_ok(void);
86 void disable_lapic_nmi_watchdog(void);
87 void enable_lapic_nmi_watchdog(void);
89 void restart_nmi(void);