watchdog/perf: add a weak function for an arch to detect if perf can use NMIs

[linux-2.6-microblaze.git] / include / linux / nmi.h

diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index 1cdadc6..28e65fd 100644 (file)
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -208,6 +208,7 @@ static inline bool trigger_single_cpu_backtrace(int cpu)
 
 #ifdef CONFIG_HARDLOCKUP_DETECTOR_PERF
 u64 hw_nmi_get_sample_period(int watchdog_thresh);
+bool arch_perf_nmi_is_available(void);
 #endif
 
 #if defined(CONFIG_HARDLOCKUP_CHECK_TIMESTAMP) && \