coresight: Add helper for inserting synchronization packets

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Right now we open code filling the trace buffer with synchronization
packets when the circular buffer wraps around in different drivers.
Move this to a common place. While at it, clean up the barrier_pkt
array to strip off the trailing '\0'.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Suzuki K Poulose 2018-07-11 13:40:18 -06:00 • committed by Greg Kroah-Hartman

parent ef32df53b7

commit 6f755e85c3

5 changed files with 23 additions and 42 deletions

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12

drivers/hwtracing/coresight/coresight-etb10.c

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10

drivers/hwtracing/coresight/coresight-priv.h

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27

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

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13

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

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3

drivers/hwtracing/coresight/coresight.c

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