coresight: etm4x: Move ETM to prohibited region for disable

Browse source

If the CPU implements Arm v8.4 Trace filter controls (FEAT_TRF),
move the ETM to trace prohibited region using TRFCR, while disabling.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20210405164307.1720226-9-suzuki.poulose@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

...

This commit is contained in:

Suzuki K Poulose 2021-04-05 17:42:55 +01:00 • committed by Mathieu Poirier

parent a1319260bf

commit 8b4811965f

2 changed files with 21 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

21

drivers/hwtracing/coresight/coresight-etm4x-core.c

View file

2

drivers/hwtracing/coresight/coresight-etm4x.h

View file