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Documentation: coresight: Fix documentation issue

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commit 66bd1333ab upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mike Leach 2021-11-17 16:42:20 +00:00 • committed by Justin Hammond
parent c4ccfa6c70
commit d88bfa71b7
1 changed files with 5 additions and 11 deletions
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16
Documentation/trace/coresight/coresight-config.rst
View file

@ -211,19 +211,13 @@ also declared in the perf 'cs_etm' event infrastructure so that they can
be selected when running trace under perf:: be selected when running trace under perf::
$ ls /sys/devices/cs_etm $ ls /sys/devices/cs_etm
configurations format perf_event_mux_interval_ms sinks type cpu0 cpu2 events nr_addr_filters power subsystem uevent
events nr_addr_filters power cpu1 cpu3 format perf_event_mux_interval_ms sinks type
Key directories here are 'configurations' - which lists the loaded The key directory here is 'events' - a generic perf directory which allows
configurations, and 'events' - a generic perf directory which allows selection on the perf command line. As with the sinks entries, this provides
selection on the perf command line.:: 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 The entry in the 'events' directory uses perfs built in syntax generator
to substitute the syntax for the name when evaluating the command:: to substitute the syntax for the name when evaluating the command::