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[50.116.44.211]) by smtp.gmail.com with ESMTPSA id d58sm775782qtb.11.2019.05.23.18.38.46 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 23 May 2019 18:38:48 -0700 (PDT) Date: Fri, 24 May 2019 09:38:42 +0800 From: Leo Yan To: Suzuki K Poulose Cc: linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 00/30] coresight: Support for ACPI bindings Message-ID: <20190524013842.GA5971@leoy-ThinkPad-X240s> References: <1558521304-27469-1-git-send-email-suzuki.poulose@arm.com> <20190523143227.GC31751@leoy-ThinkPad-X240s> <23a50436-4bcf-3439-c189-093e1a58438d@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <23a50436-4bcf-3439-c189-093e1a58438d@arm.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Suzuki, On Thu, May 23, 2019 at 04:31:54PM +0100, Suzuki K Poulose wrote: [...] > > When you send out the new patch for exposing device connection, please > > loop me so that I can base on it for perf testing related works. > > Sure, will do. Thanks a lot! > As such, the perf testing should not be affected by that > series. It is just a helper to demonstrate the connections. But yes, it > will definitely help you to choose an ETF for a cluster, if you had multiple > ETFs on the system. Otherwise, you should be OK. Yeah, the perf testing approach is heavily based on sysfs out/in nodes to find the trace pathes. > Please be aware that the power management support is missing on ACPI platform. > So you must make sure, by other means, that the debug domain is powered up. Thanks for reminding; for the first step, I will not add any power management enabling steps in the testing script, we can add the related operations if later we have clear idea for this. Thanks, Leo Yan