From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6B52CC6778D for ; Tue, 11 Sep 2018 10:35:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2F981206B8 for ; Tue, 11 Sep 2018 10:35:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2F981206B8 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726941AbeIKPeD (ORCPT ); Tue, 11 Sep 2018 11:34:03 -0400 Received: from foss.arm.com ([217.140.101.70]:41882 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726548AbeIKPeD (ORCPT ); Tue, 11 Sep 2018 11:34:03 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 8B9B17A9; Tue, 11 Sep 2018 03:35:19 -0700 (PDT) Received: from e107155-lin (e107155-lin.emea.arm.com [10.4.12.116]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 79EA53F557; Tue, 11 Sep 2018 03:35:17 -0700 (PDT) Date: Tue, 11 Sep 2018 11:35:09 +0100 From: Sudeep Holla To: Suzuki K Poulose , linux-arm-kernel@lists.infradead.org Cc: Sudeep Holla , linux-kernel@vger.kernel.org, mathieu.poirier@linaro.org, coresight@lists.linaro.org, robert.walker@arm.com, devicetree@vger.kernel.org, robh@kernel.org, Mike Leach , Liviu Dudau , Lorenzo Pierlisi Subject: Re: [PATCH] dts: juno: Enable coresight tmc scatter gather in ETR Message-ID: <20180911103509.GA770@e107155-lin> References: <1536655641-26192-1-git-send-email-suzuki.poulose@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1536655641-26192-1-git-send-email-suzuki.poulose@arm.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/09/18 09:47, Suzuki K Poulose wrote: > We do not enable scatter-gather mode in the TMC-ETR by default > to prevent malfunctioning of systems where the ETR may not be > properly connected to the memory subsystem to allow for simultaneous > READ/WRITE transactions when used in SG mode. Instead we whitelist > the platforms where we know that it is safe to use the mode. > > All revisions of Juno have a proper ETR connection and hence > white list them. > Applied conditionally, this conflicts with the patch Mathieu has in his branch. He needs to drop that so that I can take both of them via ARM SoC. -- Regards, Sudeep