diff options
| author |   Mathieu Poirier <mathieu.poirier@linaro.org> | 2016-02-17 17:52:00 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-20 14:11:01 -0800 |
| commit | 2997aa4063d97fdb39450c6078bd81a7b0504f22 (patch) | |
| tree | fc9b7135f9f7a54d8e3252aebff20d99c7c589ad /include/linux/coresight.h | |
| parent | coresight: etb10: adding operation mode for sink->enable() (diff) | |
| download | linux-dev-2997aa4063d97fdb39450c6078bd81a7b0504f22.tar.xz linux-dev-2997aa4063d97fdb39450c6078bd81a7b0504f22.zip | |
coresight: etb10: implementing AUX API
Adding an ETB10 specific AUX area operations to be used
by the perf framework when events are initialised.
Part of this operation involves modeling the mmap'ed area
based on the specific ways a sink buffer gathers information.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/coresight.h')
| -rw-r--r-- | include/linux/coresight.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/include/linux/coresight.h b/include/linux/coresight.h index 9fa92dcdd2ea..385d62e64abb 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -182,12 +182,29 @@ struct coresight_device { /** * struct coresight_ops_sink - basic operations for a sink * Operations available for sinks - * @enable: enables the sink. - * @disable: disables the sink. + * @enable: enables the sink. + * @disable: disables the sink. + * @alloc_buffer: initialises perf's ring buffer for trace collection. + * @free_buffer: release memory allocated in @get_config. + * @set_buffer: initialises buffer mechanic before a trace session. + * @reset_buffer: finalises buffer mechanic after a trace session. + * @update_buffer: update buffer pointers after a trace session. */ struct coresight_ops_sink { int (*enable)(struct coresight_device *csdev, u32 mode); void (*disable)(struct coresight_device *csdev); + void *(*alloc_buffer)(struct coresight_device *csdev, int cpu, + void **pages, int nr_pages, bool overwrite); + void (*free_buffer)(void *config); + int (*set_buffer)(struct coresight_device *csdev, + struct perf_output_handle *handle, + void *sink_config); + unsigned long (*reset_buffer)(struct coresight_device *csdev, + struct perf_output_handle *handle, + void *sink_config, bool *lost); + void (*update_buffer)(struct coresight_device *csdev, + struct perf_output_handle *handle, + void *sink_config); }; /** |