coresight: Fix disabling of CoreSight TPIU

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The CoreSight TPIU should be disabled when tracing to other sinks to allow
them to operate at full bandwidth.

This patch fixes tpiu_disable_hw() to correctly disable the TPIU by
configuring the TPIU to stop on flush, initiating a manual flush, waiting
for the flush to complete and then waits for the TPIU to indicate it has
stopped.

Signed-off-by: Robert Walker <robert.walker@arm.com>
Tested-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Robert Walker 2017-12-18 11:05:44 -07:00 • committed by Greg Kroah-Hartman

parent 3703221944

commit 11595db8e1

1 changed files with 10 additions and 3 deletions

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drivers/hwtracing/coresight/coresight-tpiu.c

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