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| author | Mike Leach <mike.leach@linaro.org> | 2021-11-17 16:42:20 +0000 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2021-11-18 09:40:41 -0700 |
| commit | 66bd1333abd7fa191f13b929c9119d6cd3df27b0 (patch) | |
| tree | 1ff8d1fee41f9419a402e9b9f6e536b295412b04 /Documentation/trace | |
| parent | 934a5dc1546b1c637999bfcebcdd1598eaab4818 (diff) | |
| download | lwn-66bd1333abd7fa191f13b929c9119d6cd3df27b0.tar.gz lwn-66bd1333abd7fa191f13b929c9119d6cd3df27b0.zip | |
Documentation: coresight: Fix documentation issue
Fix the description of the directories and attributes used
in cs_etm as used by perf.
Drop the references to the 'configurations' sub-directory which
had been removed in an earlier version of the patchset.
Fixes: f71cd93d5ea4 ("Documentation: coresight: Add documentation for CoreSight config")
Reported-by: German Gomex <german.gomez@arm.com>
Signed-off-by: Mike Leach <mike.leach@linaro.org>
Link: https://lore.kernel.org/r/20211117164220.14883-1-mike.leach@linaro.org
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'Documentation/trace')
| -rw-r--r-- | Documentation/trace/coresight/coresight-config.rst | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/Documentation/trace/coresight/coresight-config.rst b/Documentation/trace/coresight/coresight-config.rst index a4e3ef295240..6ed13398ca2c 100644 --- a/Documentation/trace/coresight/coresight-config.rst +++ b/Documentation/trace/coresight/coresight-config.rst @@ -211,19 +211,13 @@ also declared in the perf 'cs_etm' event infrastructure so that they can be selected when running trace under perf:: $ ls /sys/devices/cs_etm - configurations format perf_event_mux_interval_ms sinks type - events nr_addr_filters power + cpu0 cpu2 events nr_addr_filters power subsystem uevent + cpu1 cpu3 format perf_event_mux_interval_ms sinks type -Key directories here are 'configurations' - which lists the loaded -configurations, and 'events' - a generic perf directory which allows -selection on the perf command line.:: +The key directory here is 'events' - a generic perf directory which allows +selection on the perf command line. As with the sinks entries, this provides +a hash of the configuration name. - $ ls configurations/ - autofdo - $ cat configurations/autofdo - 0xa7c3dddd - -As with the sinks entries, this provides a hash of the configuration name. The entry in the 'events' directory uses perfs built in syntax generator to substitute the syntax for the name when evaluating the command:: |