commit 0c3fc4d5fa26092853278145aca9b21fa52a3e93
author Mathieu Poirier <mathieu.poirier@linaro.org> Wed Aug 02 10:21:57 2017 -0600
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Mon Aug 28 16:05:47 2017 +0200
tree 22445053dce96dc4922d04deb5f029a3aaec8c56
parent 4f871a9f0f6fbb8ab023cca1f0099bf152a5d618

coresight: Add barrier packet for synchronisation

When a buffer overflow happens the synchronisation patckets usually
present at the beginning of the buffer are lost, a situation that
prevents the decoder from knowing the context of the traces being
decoded.

This patch adds a barrier packet to be used by sink IPs when a buffer
overflow condition is detected.  These barrier packets are then used
by the decoding library as markers to force re-synchronisation.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>