tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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kernel / include / linux / ftrace_irq.h
at v5.1-rc4 37 lines 823 B view raw
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _LINUX_FTRACE_IRQ_H 3#define _LINUX_FTRACE_IRQ_H 4 5 6#ifdef CONFIG_FTRACE_NMI_ENTER 7extern void arch_ftrace_nmi_enter(void); 8extern void arch_ftrace_nmi_exit(void); 9#else 10static inline void arch_ftrace_nmi_enter(void) { } 11static inline void arch_ftrace_nmi_exit(void) { } 12#endif 13 14#ifdef CONFIG_HWLAT_TRACER 15extern bool trace_hwlat_callback_enabled; 16extern void trace_hwlat_callback(bool enter); 17#endif 18 19static inline void ftrace_nmi_enter(void) 20{ 21#ifdef CONFIG_HWLAT_TRACER 22 if (trace_hwlat_callback_enabled) 23 trace_hwlat_callback(true); 24#endif 25 arch_ftrace_nmi_enter(); 26} 27 28static inline void ftrace_nmi_exit(void) 29{ 30 arch_ftrace_nmi_exit(); 31#ifdef CONFIG_HWLAT_TRACER 32 if (trace_hwlat_callback_enabled) 33 trace_hwlat_callback(false); 34#endif 35} 36 37#endif /* _LINUX_FTRACE_IRQ_H */