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Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1ho1mb-0003R7-Q0; Thu, 18 Jul 2019 08:28:57 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1ho1mY-0003Q2-Vt for linux-arm-kernel@lists.infradead.org; Thu, 18 Jul 2019 08:28:56 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3805F28; Thu, 18 Jul 2019 01:28:52 -0700 (PDT) Received: from dawn-kernel.cambridge.arm.com (unknown [10.1.197.116]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 147763F71F; Thu, 18 Jul 2019 01:28:49 -0700 (PDT) Subject: Re: [PATCHv8 2/5] arm64: dts: qcom: msm8998: Add Coresight support To: saiprakash.ranjan@codeaurora.org, gregkh@linuxfoundation.org, mathieu.poirier@linaro.org, leo.yan@linaro.org, alexander.shishkin@linux.intel.com, mike.leach@linaro.org, robh+dt@kernel.org, bjorn.andersson@linaro.org, devicetree@vger.kernel.org, david.brown@linaro.org, mark.rutland@arm.com References: From: Suzuki K Poulose Message-ID: <3b192063-f31f-b861-d913-61d737cecc57@arm.com> Date: Thu, 18 Jul 2019 09:28:48 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190718_012855_074653_6E1CA4E5 X-CRM114-Status: GOOD ( 15.61 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: rnayak@codeaurora.org, marc.w.gonzalez@free.fr, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, sibis@codeaurora.org, vivek.gautam@codeaurora.org, linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Sai, On 12/07/2019 15:16, Sai Prakash Ranjan wrote: > Enable coresight support by adding device nodes for the > available source, sinks and channel blocks on MSM8998. > > Signed-off-by: Sai Prakash Ranjan > Reviewed-by: Mathieu Poirier > Acked-by: Suzuki K Poulose > --- > arch/arm64/boot/dts/qcom/msm8998.dtsi | 435 ++++++++++++++++++++++++++ > 1 file changed, 435 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi > index c13ed7aeb1e0..ad9cb5e8675d 100644 > --- a/arch/arm64/boot/dts/qcom/msm8998.dtsi > +++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi > @@ -822,6 +822,441 @@ etr@6048000 { > + compatible = "arm,coresight-tmc", "arm,primecell"; > + reg = <0x06048000 0x1000>; > + > + clocks = <&rpmcc RPM_SMD_QDSS_CLK>, <&rpmcc RPM_SMD_QDSS_A_CLK>; > + clock-names = "apb_pclk", "atclk"; > + arm,scatter-gather; Please could you confirm that you have tested the scatter-gather mode with ETR ? Either via perf/sysfs. Please could you share your results ? Unless verified this is going to be fatal for the system. Similarly for other platforms. Kind regards Suzuki _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel