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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 86A42C76191 for ; Thu, 18 Jul 2019 09:14:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5B95F2173B for ; Thu, 18 Jul 2019 09:14:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="OVL3O3jI"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="AQVPQaTi" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727624AbfGRJOP (ORCPT ); Thu, 18 Jul 2019 05:14:15 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:56714 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727474AbfGRJOO (ORCPT ); Thu, 18 Jul 2019 05:14:14 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 6528B611DC; Thu, 18 Jul 2019 09:14:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1563441253; bh=VhDyfrl5HF7LGKh1nzpDD9O11fTQif36TkBw/IKiH5Q=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=OVL3O3jIY5WcsCb/ZP/hpi5L6lTZWXe7BdNfgZalajMwCXDNyBeKYQiDM1uq5pI6K iear6cz7SIpDlGprULiWjQXaHVEf9H8/g3eOCYj1UqMxuLA6tA+kv9DghqfxMUrPGx sNjjEdbYJ7FyxZiu86XBqs4P1D8lgppftVz1g0ow= Received: from [192.168.43.47] (unknown [157.49.202.231]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: saiprakash.ranjan@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 7CC8260E3F; Thu, 18 Jul 2019 09:14:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1563441252; bh=VhDyfrl5HF7LGKh1nzpDD9O11fTQif36TkBw/IKiH5Q=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=AQVPQaTiOnZUezDn0KluvVO5TaRPiYrHEJ9e7Y+Tb+9Wod7o7Gsy6ivk8Af2gZN8x 4fFxU233qf5HYgKxRlsqZTAHNyBUXL9GIOG/DCV8oxn7gACXq2TkWFEntxLMat/5B+ ZSBTJTvitkcHsFJquUNqv6mmpH4hfX1HqD/uIiII= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 7CC8260E3F Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=saiprakash.ranjan@codeaurora.org Subject: Re: [PATCHv8 2/5] arm64: dts: qcom: msm8998: Add Coresight support To: Suzuki K Poulose , 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 Cc: rnayak@codeaurora.org, vivek.gautam@codeaurora.org, sibis@codeaurora.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, marc.w.gonzalez@free.fr References: <3b192063-f31f-b861-d913-61d737cecc57@arm.com> From: Sai Prakash Ranjan Message-ID: <4854b0f7-6a81-bc87-3e63-d2b7c68a44f6@codeaurora.org> Date: Thu, 18 Jul 2019 14:44:01 +0530 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <3b192063-f31f-b861-d913-61d737cecc57@arm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Hi Suzuki, On 7/18/2019 1:58 PM, Suzuki K Poulose wrote: > Hi Sai, > > >         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. > Yes I have tested with scatter-gather mode with ETR on all platforms which I have posted via sysfs(not perf) before on previous versions of this patch series and no issues were found. And I suppose this was discussed in v2 of this patch series [1]. As said in one of the series initially [1], QCOM msm downstream kernels have been using scatter gather mode and we haven't seen any fatal issues. [1] https://patchwork.kernel.org/patch/10769535/ Thanks, Sai -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation 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=-2.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 861D9C76191 for ; Thu, 18 Jul 2019 09:14:36 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 516AB2173B for ; Thu, 18 Jul 2019 09:14:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="nzzC0HIM"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="OVL3O3jI"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="AQVPQaTi" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 516AB2173B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=8mD1I4pj+3tZ3yMS1eCWOiORBhI9X7gmLgIYl5asI6g=; b=nzzC0HIMVTPWeu4eqvlpI1E9e 7oGONe0yFIA9wnyPpbp9Bh2RrKG5g/W1qrnRV6qNWOEYS4YO0iGEBbDvDhB14WyUkCCcjnW5EqiOt +uLXr4dq8Nm6SneI3Pz41ft09f93Uh+1zIrI7fuEG+yosb+Pb3AH+GKQu320W23g4h2klgwju3wXc Msn8JeROCKFuLfDUJ3JPppcw5u2iJSeHXacrqzCpQPaFiczl/FH8vvBP4Gaf4Hf7cOTbib7vzkSyv pe7X8EM0q5+2sw6ZAU345Y1airsnmC4n0j+PnUClJ2wNGYSxmCJ6nRHn8OH65dk69X29MeWNjMy28 6X1CzZsew==; 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 1ho2UW-00042W-Ui; Thu, 18 Jul 2019 09:14:20 +0000 Received: from smtp.codeaurora.org ([198.145.29.96]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1ho2US-00041H-Se for linux-arm-kernel@lists.infradead.org; Thu, 18 Jul 2019 09:14:18 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 84451616B8; Thu, 18 Jul 2019 09:14:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1563441253; bh=VhDyfrl5HF7LGKh1nzpDD9O11fTQif36TkBw/IKiH5Q=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=OVL3O3jIY5WcsCb/ZP/hpi5L6lTZWXe7BdNfgZalajMwCXDNyBeKYQiDM1uq5pI6K iear6cz7SIpDlGprULiWjQXaHVEf9H8/g3eOCYj1UqMxuLA6tA+kv9DghqfxMUrPGx sNjjEdbYJ7FyxZiu86XBqs4P1D8lgppftVz1g0ow= Received: from [192.168.43.47] (unknown [157.49.202.231]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: saiprakash.ranjan@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 7CC8260E3F; Thu, 18 Jul 2019 09:14:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1563441252; bh=VhDyfrl5HF7LGKh1nzpDD9O11fTQif36TkBw/IKiH5Q=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=AQVPQaTiOnZUezDn0KluvVO5TaRPiYrHEJ9e7Y+Tb+9Wod7o7Gsy6ivk8Af2gZN8x 4fFxU233qf5HYgKxRlsqZTAHNyBUXL9GIOG/DCV8oxn7gACXq2TkWFEntxLMat/5B+ ZSBTJTvitkcHsFJquUNqv6mmpH4hfX1HqD/uIiII= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 7CC8260E3F Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=saiprakash.ranjan@codeaurora.org Subject: Re: [PATCHv8 2/5] arm64: dts: qcom: msm8998: Add Coresight support To: Suzuki K Poulose , 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: <3b192063-f31f-b861-d913-61d737cecc57@arm.com> From: Sai Prakash Ranjan Message-ID: <4854b0f7-6a81-bc87-3e63-d2b7c68a44f6@codeaurora.org> Date: Thu, 18 Jul 2019 14:44:01 +0530 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <3b192063-f31f-b861-d913-61d737cecc57@arm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190718_021416_963236_1C365436 X-CRM114-Status: GOOD ( 16.45 ) 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: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org SGkgU3V6dWtpLAoKT24gNy8xOC8yMDE5IDE6NTggUE0sIFN1enVraSBLIFBvdWxvc2Ugd3JvdGU6 Cj4gSGkgU2FpLAo+IAo+IAo+ICDCoMKgwqDCoMKgwqDCoCBldHJANjA0ODAwMCB7Cj4+ICvCoMKg wqDCoMKgwqDCoMKgwqDCoMKgIGNvbXBhdGlibGUgPSAiYXJtLGNvcmVzaWdodC10bWMiLCAiYXJt LHByaW1lY2VsbCI7Cj4+ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIHJlZyA9IDwweDA2MDQ4MDAw IDB4MTAwMD47Cj4+ICsKPj4gK8KgwqDCoMKgwqDCoMKgwqDCoMKgwqAgY2xvY2tzID0gPCZycG1j YyBSUE1fU01EX1FEU1NfQ0xLPiwgPCZycG1jYyAKPj4gUlBNX1NNRF9RRFNTX0FfQ0xLPjsKPj4g K8KgwqDCoMKgwqDCoMKgwqDCoMKgwqAgY2xvY2stbmFtZXMgPSAiYXBiX3BjbGsiLCAiYXRjbGsi Owo+PiArwqDCoMKgwqDCoMKgwqDCoMKgwqDCoCBhcm0sc2NhdHRlci1nYXRoZXI7Cj4gCj4gUGxl YXNlIGNvdWxkIHlvdSBjb25maXJtIHRoYXQgeW91IGhhdmUgdGVzdGVkIHRoZSBzY2F0dGVyLWdh dGhlciBtb2RlIAo+IHdpdGggRVRSID8gRWl0aGVyIHZpYSBwZXJmL3N5c2ZzLiBQbGVhc2UgY291 bGQgeW91IHNoYXJlIHlvdXIgcmVzdWx0cyA/IAo+IFVubGVzcyB2ZXJpZmllZAo+IHRoaXMgaXMg Z29pbmcgdG8gYmUgZmF0YWwgZm9yIHRoZSBzeXN0ZW0uCj4gCj4gU2ltaWxhcmx5IGZvciBvdGhl ciBwbGF0Zm9ybXMuCj4gCgpZZXMgSSBoYXZlIHRlc3RlZCB3aXRoIHNjYXR0ZXItZ2F0aGVyIG1v ZGUgd2l0aCBFVFIgb24gYWxsIHBsYXRmb3Jtcwp3aGljaCBJIGhhdmUgcG9zdGVkIHZpYSBzeXNm cyhub3QgcGVyZikgYmVmb3JlIG9uIHByZXZpb3VzIHZlcnNpb25zIG9mIAp0aGlzIHBhdGNoIHNl cmllcyBhbmQgbm8gaXNzdWVzIHdlcmUgZm91bmQuIEFuZCBJIHN1cHBvc2UgdGhpcyB3YXMKZGlz Y3Vzc2VkIGluIHYyIG9mIHRoaXMgcGF0Y2ggc2VyaWVzIFsxXS4KCkFzIHNhaWQgaW4gb25lIG9m IHRoZSBzZXJpZXMgaW5pdGlhbGx5IFsxXSwgUUNPTSBtc20gZG93bnN0cmVhbSBrZXJuZWxzIApo YXZlIGJlZW4gdXNpbmcgc2NhdHRlciBnYXRoZXIgbW9kZSBhbmQgd2UgaGF2ZW4ndCBzZWVuIGFu eSBmYXRhbCBpc3N1ZXMuCgpbMV0gaHR0cHM6Ly9wYXRjaHdvcmsua2VybmVsLm9yZy9wYXRjaC8x MDc2OTUzNS8KClRoYW5rcywKU2FpCgotLSAKUVVBTENPTU0gSU5ESUEsIG9uIGJlaGFsZiBvZiBR dWFsY29tbSBJbm5vdmF0aW9uIENlbnRlciwgSW5jLiBpcyBhIG1lbWJlcgpvZiBDb2RlIEF1cm9y YSBGb3J1bSwgaG9zdGVkIGJ5IFRoZSBMaW51eCBGb3VuZGF0aW9uCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcg bGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmlu ZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==