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| author | Dave Martin <dave.martin@linaro.org> | 2013-02-11 14:39:19 +0000 |
|---|---|---|
| committer | Nicolas Pitre <nicolas.pitre@linaro.org> | 2013-06-20 00:45:29 -0400 |
| commit | 21ba6d493d0aa19b1932880ebbab057a99a9a9a1 (patch) | |
| tree | 09b67e6951ab47949c8645b36e0fecc7c895d776 /arch/arm/include | |
| parent | b87db1b9e394f0d6c25bb9a4d2c85144fc571b5d (diff) | |
| download | vexpress-lsk-21ba6d493d0aa19b1932880ebbab057a99a9a9a1.tar.gz | |
ARM: bL_switcher/trace: Add kernel trace trigger interface
This patch exports a bL_switcher_trace_trigger() function to
provide a means for drivers using the trace events to get the
current status when starting a trace session.
Calling this function is equivalent to pinging the trace_trigger
file in sysfs.
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/bL_switcher.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/include/asm/bL_switcher.h b/arch/arm/include/asm/bL_switcher.h index 71d1b6a986b..31df916c40a 100644 --- a/arch/arm/include/asm/bL_switcher.h +++ b/arch/arm/include/asm/bL_switcher.h @@ -57,6 +57,8 @@ int bL_switcher_unregister_notifier(struct notifier_block *nb); bool bL_switcher_get_enabled(void); void bL_switcher_put_enabled(void); +int bL_switcher_trace_trigger(void); + #else static void bL_switch_request_detach(unsigned int cpu, bL_switch_completion_handler completer) { } @@ -73,6 +75,7 @@ static inline int bL_switcher_unregister_notifier(struct notifier_block *nb) static inline bool bL_switcher_get_enabled(void) { return false; } static inline void bL_switcher_put_enabled(void) { } +static inline int bL_switcher_trace_trigger(void) { return 0; } #endif /* CONFIG_BL_SWITCHER */ #endif |