diff options
| author | German Gomez <[email protected]> | 2022-08-23 17:06:49 +0100 |
|---|---|---|
| committer | Mathieu Poirier <[email protected]> | 2022-08-26 13:37:52 -0600 |
| commit | 0f00b223ea22f9e32a82a6ffb5a4de0753c99b55 (patch) | |
| tree | e04898d087c6ea6b17b6fa2d62aab49f09ca8ba9 /tools/perf/scripts/python/netdev-times.py | |
| parent | 84fa8f159022aab8e93667b56672238b10cdbb9b (diff) | |
coresight: etm4x: Expose default timestamp source in sysfs
Add a new sysfs interface in /sys/bus/coresight/devices/etm<N>/ts_source
indicating the configured timestamp source when the ETM device driver
was probed.
The perf tool will use this information to detect if the trace data
timestamp matches the kernel time, enabling correlation of CoreSight
trace with perf events.
Suggested-by: Suzuki K Poulose <[email protected]>
Signed-off-by: German Gomez <[email protected]>
Reviewed-by: Leo Yan <[email protected]>
Signed-off-by: James Clark <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mathieu Poirier <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions