diff options
Diffstat (limited to 'include/linux/nmi.h')
| -rw-r--r-- | include/linux/nmi.h | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/include/linux/nmi.h b/include/linux/nmi.h index 29af2d5df097..c536f8545f74 100644 --- a/include/linux/nmi.h +++ b/include/linux/nmi.h @@ -14,22 +14,42 @@ * may be used to reset the timeout - for code which intentionally * disables interrupts for a long time. This call is stateless. */ -#ifdef ARCH_HAS_NMI_WATCHDOG +#if defined(ARCH_HAS_NMI_WATCHDOG) || defined(CONFIG_HARDLOCKUP_DETECTOR) #include <asm/nmi.h> extern void touch_nmi_watchdog(void); -extern void acpi_nmi_disable(void); -extern void acpi_nmi_enable(void); #else static inline void touch_nmi_watchdog(void) { touch_softlockup_watchdog(); } -static inline void acpi_nmi_disable(void) { } -static inline void acpi_nmi_enable(void) { } #endif -#ifndef trigger_all_cpu_backtrace -#define trigger_all_cpu_backtrace() do { } while (0) +/* + * Create trigger_all_cpu_backtrace() out of the arch-provided + * base function. Return whether such support was available, + * to allow calling code to fall back to some other mechanism: + */ +#ifdef arch_trigger_all_cpu_backtrace +static inline bool trigger_all_cpu_backtrace(void) +{ + arch_trigger_all_cpu_backtrace(); + + return true; +} +#else +static inline bool trigger_all_cpu_backtrace(void) +{ + return false; +} +#endif + +#ifdef CONFIG_LOCKUP_DETECTOR +int hw_nmi_is_cpu_stuck(struct pt_regs *); +u64 hw_nmi_get_sample_period(void); +extern int watchdog_enabled; +struct ctl_table; +extern int proc_dowatchdog_enabled(struct ctl_table *, int , + void __user *, size_t *, loff_t *); #endif #endif |