coresight: tmc-etr: Add barrier packets when moving offset forward

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This patch adds barrier packets in the trace stream when the offset in the
data buffer needs to be moved forward.  Otherwise the decoder isn't aware
of the break in the stream and can't synchronise itself with the trace
data.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: Yabin Cui <yabinc@google.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20190829202842.580-18-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Mathieu Poirier 2019-08-29 14:28:42 -06:00 • committed by Greg Kroah-Hartman

parent 3507d231a4

commit ec13c78d7b

1 changed files with 24 additions and 5 deletions

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

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