From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752008AbdFOKX3 (ORCPT ); Thu, 15 Jun 2017 06:23:29 -0400 Received: from foss.arm.com ([217.140.101.70]:43766 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750830AbdFOKX2 (ORCPT ); Thu, 15 Jun 2017 06:23:28 -0400 Subject: Re: [PATCH 07/12] coresight replicator: Expose replicator management registers To: Mathieu Poirier References: <1497278211-5001-1-git-send-email-suzuki.poulose@arm.com> <1497278211-5001-8-git-send-email-suzuki.poulose@arm.com> <20170614175454.GC22030@xps15> Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org From: Suzuki K Poulose Message-ID: <79fb2dd7-c756-97aa-645f-126206bf8879@arm.com> Date: Thu, 15 Jun 2017 11:23:26 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: <20170614175454.GC22030@xps15> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.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