1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX_FTRACE_IRQ_H 3 #define _LINUX_FTRACE_IRQ_H 4 5 #ifdef CONFIG_HWLAT_TRACER 6 extern bool trace_hwlat_callback_enabled; 7 extern void trace_hwlat_callback(bool enter); 8 #endif 9 10 static inline void ftrace_nmi_enter(void) 11 { 12 #ifdef CONFIG_HWLAT_TRACER 13 if (trace_hwlat_callback_enabled) 14 trace_hwlat_callback(true); 15 #endif 16 } 17 18 static inline void ftrace_nmi_exit(void) 19 { 20 #ifdef CONFIG_HWLAT_TRACER 21 if (trace_hwlat_callback_enabled) 22 trace_hwlat_callback(false); 23 #endif 24 } 25 26 #endif /* _LINUX_FTRACE_IRQ_H */ 27