coresight: tmc-etr: Introduce the notion of reference counting to ETR devices

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This patch adds reference counting to struct etr_buf so that, in CPU-wide
trace scenarios, shared buffers can be disposed of when no longer used.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Robert Walker <robert.walker@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Mathieu Poirier 2019-04-25 13:53:05 -06:00 • committed by Greg Kroah-Hartman

parent ef848e463a

commit 57549999b9

2 changed files with 8 additions and 0 deletions

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5

drivers/hwtracing/coresight/coresight-tmc-etr.c

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3

drivers/hwtracing/coresight/coresight-tmc.h

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