coresight: trbe: Add a helper to determine the minimum buffer size

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For the TRBE to operate, we need a minimum space available to collect
meaningful trace session. This is currently a few bytes, but we may need
to extend this for working around errata. So, abstract this into a helper
function.

Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20211019163153.3692640-12-suzuki.poulose@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>

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Suzuki K Poulose 2021-10-19 17:31:49 +01:00 • committed by Mathieu Poirier

parent 5cb75f1880

commit 7c2cc5e26c

1 changed files with 6 additions and 1 deletions

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drivers/hwtracing/coresight/coresight-trbe.c

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