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Documentation: coresight: Fix documentation issue

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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: f71cd93d5e ("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>
This commit is contained in:
Mike Leach 2021-11-17 16:42:20 +00:00 committed by Mathieu Poirier
parent 934a5dc154
commit 66bd1333ab
1 changed files with 5 additions and 11 deletions
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16
Documentation/trace/coresight/coresight-config.rst
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@ -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::