2 * linux/include/linux/nmi.h
7 #include <linux/sched.h>
11 * touch_nmi_watchdog - restart NMI watchdog timeout.
13 * If the architecture supports the NMI watchdog, touch_nmi_watchdog()
14 * may be used to reset the timeout - for code which intentionally
15 * disables interrupts for a long time. This call is stateless.
17 #if defined(CONFIG_HAVE_NMI_WATCHDOG) || defined(CONFIG_HARDLOCKUP_DETECTOR)
19 extern void touch_nmi_watchdog(void);
21 static inline void touch_nmi_watchdog(void)
23 touch_softlockup_watchdog();
27 #if defined(CONFIG_HARDLOCKUP_DETECTOR)
28 extern void watchdog_enable_hardlockup_detector(bool val);
29 extern bool watchdog_hardlockup_detector_is_enabled(void);
31 static inline void watchdog_enable_hardlockup_detector(bool val)
34 static inline bool watchdog_hardlockup_detector_is_enabled(void)
41 * Create trigger_all_cpu_backtrace() out of the arch-provided
42 * base function. Return whether such support was available,
43 * to allow calling code to fall back to some other mechanism:
45 #ifdef arch_trigger_all_cpu_backtrace
46 static inline bool trigger_all_cpu_backtrace(void)
48 arch_trigger_all_cpu_backtrace(true);
52 static inline bool trigger_allbutself_cpu_backtrace(void)
54 arch_trigger_all_cpu_backtrace(false);
58 static inline bool trigger_all_cpu_backtrace(void)
62 static inline bool trigger_allbutself_cpu_backtrace(void)
68 #ifdef CONFIG_LOCKUP_DETECTOR
69 int hw_nmi_is_cpu_stuck(struct pt_regs *);
70 u64 hw_nmi_get_sample_period(int watchdog_thresh);
71 extern int watchdog_user_enabled;
72 extern int watchdog_thresh;
73 extern int sysctl_softlockup_all_cpu_backtrace;
75 extern int proc_dowatchdog(struct ctl_table *, int ,
76 void __user *, size_t *, loff_t *);
79 #ifdef CONFIG_HAVE_ACPI_APEI_NMI