From mboxrd@z Thu Jan 1 00:00:00 1970 From: Suzuki.Poulose@arm.com (Suzuki K Poulose) Date: Thu, 15 Jun 2017 11:23:26 +0100 Subject: [PATCH 07/12] coresight replicator: Expose replicator management registers In-Reply-To: <20170614175454.GC22030@xps15> References: <1497278211-5001-1-git-send-email-suzuki.poulose@arm.com> <1497278211-5001-8-git-send-email-suzuki.poulose@arm.com> <20170614175454.GC22030@xps15> Message-ID: <79fb2dd7-c756-97aa-645f-126206bf8879@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 14/06/17 18:54, Mathieu Poirier wrote: > On Mon, Jun 12, 2017 at 03:36:46PM +0100, Suzuki K Poulose wrote: >> Expose the idfilter* registers of the programmable replicator. > > Is this for SoC600 only? If so we need to make sure these are not visible when > operating an SoC400 replicator. Otherwise simply disregard my statement. No, this is for the existing dynamic replicator, which is also compatible with the one in SoC-600. In the future, we may be able to support multiple trace sessions (i.e, distinct source-sink pairs using a shared dynamic replicator to filter the data based on the trace-id). Right now we simple switch off the other side of the replicator, when we enable the port connected to the sink. I found these useful while debugging trace generation issue on one of the platforms. Suzuki