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=-4.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,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 B230CC35273 for ; Thu, 17 Dec 2020 20:30:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9E74B23A53 for ; Thu, 17 Dec 2020 20:30:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731563AbgLQUaA (ORCPT ); Thu, 17 Dec 2020 15:30:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35532 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731562AbgLQU3k (ORCPT ); Thu, 17 Dec 2020 15:29:40 -0500 Received: from mail-lf1-x132.google.com (mail-lf1-x132.google.com [IPv6:2a00:1450:4864:20::132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2F309C0617B0; Thu, 17 Dec 2020 12:29:00 -0800 (PST) Received: by mail-lf1-x132.google.com with SMTP id o13so37812151lfr.3; Thu, 17 Dec 2020 12:29:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=GKljy0FefLQb5prsvrnmqmrfVAtuVTCWN2SoJppsiGI=; b=VYw3hMep39JaWr4RwvGdOrkGOk9i1d6L30sa3pEZc7Jv57OKRk5xzJobClTKgPsGz4 Ux2rqCf61N62ecUxjuf+FhwgZuq6/I5KHRjnZ7diKnsWDfTW/SukvhsBUZlxuHES2tBx KA6mi1x/TTsvr79mP2iIAy6rt5BtlZov6lwj0Q/GroxAz5jbgQjbT6zgJMSIwELBKf2g /n0gYoohxBFjsnmUc/HOVz4oKc+nh6akNPzNKQgP+4u5qyrHWzuQTI0sEJ5e7lGr1KM4 Iv71/evpjH/o4eVLGPr6hFsFvEMIGycEsSNOAE3yZWz2nbBq0cBhHetzYDI877dr1BgC x8Bw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=GKljy0FefLQb5prsvrnmqmrfVAtuVTCWN2SoJppsiGI=; b=bK8dPBLTb8IUT9lE59gABev/dSI8K0ab6YMycEYDMtItFYXtyulsgW38kChZ0tM+yr dpUrB+atiAuncAV+FgSUUIacOupUShfMRMAkDtyQIOyqA6OGStnOeq+aBxi3pJrAVx9q 2oGHDl5aQ0iFWW466oRcSDSwbJa8cAC20wBkws5OM+vJGHRTYLFgNZPKxGHNvsjPic3X VZglFVDmvfqoscAiCGMmKbR7C9GbroR1kFW5ZLBwgxvltXhHqsqivdZ4UqRjsmyXKgxn d7KSoCwAx7C+kgb1EaXnMCgymGtHLLL/bhALeEcBZ7stWlSPy9IG3Sw5bE0BiwtDvvHi TjUg== X-Gm-Message-State: AOAM533dLwv83/AkseijTMyZjQDvZDvYlL8gBy2S47e2BmoYYjtDje/j bzYr2LuNxgbRDd7LKIXVZon2RPHAna0= X-Google-Smtp-Source: ABdhPJyk0uEwMqjubAd1x7PylZGa1gcruRNAfNVBuufl026RTe1WSf8KkEES9wW9uq7xDnyQwzJAbA== X-Received: by 2002:a05:651c:101:: with SMTP id a1mr421137ljb.277.1608236938516; Thu, 17 Dec 2020 12:28:58 -0800 (PST) Received: from [192.168.2.145] (109-252-192-57.dynamic.spd-mgts.ru. [109.252.192.57]) by smtp.googlemail.com with ESMTPSA id z26sm781859ljn.98.2020.12.17.12.28.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 17 Dec 2020 12:28:57 -0800 (PST) Subject: Re: [PATCH v2 47/48] ARM: tegra: ventana: Support CPU voltage scaling and thermal throttling To: Daniel Lezcano , Thierry Reding , Jonathan Hunter , Mark Brown , Liam Girdwood , Ulf Hansson , Mauro Carvalho Chehab , Rob Herring , Peter Geis , Nicolas Chauvet , Krzysztof Kozlowski , "Rafael J. Wysocki" , Kevin Hilman , Peter De Schrijver , Viresh Kumar , Stephen Boyd , Michael Turquette Cc: devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linux-tegra@vger.kernel.org, linux-clk@vger.kernel.org References: <20201217180638.22748-1-digetx@gmail.com> <20201217180638.22748-48-digetx@gmail.com> <91139f8b-0b83-dd8a-ba53-8e7a499e6344@linaro.org> <776e0e84-e395-2bfb-f1ee-c34864b1cf16@linaro.org> From: Dmitry Osipenko Message-ID: Date: Thu, 17 Dec 2020 23:28:56 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.2 MIME-Version: 1.0 In-Reply-To: <776e0e84-e395-2bfb-f1ee-c34864b1cf16@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org 17.12.2020 22:36, Daniel Lezcano пишет: >>>> + type = "critical"; >>>> + }; >>>> + }; >>>> + >>>> + cooling-maps { >>>> + map0 { >>>> + trip = <&trip0>; >>>> + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; >>> You should add all CPUs here. >> >> All CPU cores are coupled on Tegra in regards to CPUFreq, hence I think >> it won't make any difference if secondary CPU cores will be added here, >> isn't it? > The explanation is in the description of commit ef4734500407ce4d I think that really only makes sense if CPU cores have independent clock rate management. IIRC, I actually made some research about this in the past and intentionally removed the secondary cores from the cooling-device since they didn't make any difference for a coupled CPU cores. That commit also says: "But as soon as this CPU ordering changes and any other CPU is used to bring up the cooling device, we will start seeing failures." I don't quite understand to what "failures" that commit referrers. I tried to change the cpu0 to cpu1 in the cooling-device and don't see any failures. Could you please clarify this? In general it should be fine to add all the cores to the cooling-device and I'll do it in v3, but I want to make it clear why this is needed. 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[109.252.192.57]) by smtp.googlemail.com with ESMTPSA id z26sm781859ljn.98.2020.12.17.12.28.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 17 Dec 2020 12:28:57 -0800 (PST) Subject: Re: [PATCH v2 47/48] ARM: tegra: ventana: Support CPU voltage scaling and thermal throttling To: Daniel Lezcano , Thierry Reding , Jonathan Hunter , Mark Brown , Liam Girdwood , Ulf Hansson , Mauro Carvalho Chehab , Rob Herring , Peter Geis , Nicolas Chauvet , Krzysztof Kozlowski , "Rafael J. Wysocki" , Kevin Hilman , Peter De Schrijver , Viresh Kumar , Stephen Boyd , Michael Turquette References: <20201217180638.22748-1-digetx@gmail.com> <20201217180638.22748-48-digetx@gmail.com> <91139f8b-0b83-dd8a-ba53-8e7a499e6344@linaro.org> <776e0e84-e395-2bfb-f1ee-c34864b1cf16@linaro.org> From: Dmitry Osipenko Message-ID: Date: Thu, 17 Dec 2020 23:28:56 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.2 MIME-Version: 1.0 In-Reply-To: <776e0e84-e395-2bfb-f1ee-c34864b1cf16@linaro.org> Content-Language: en-US X-BeenThere: driverdev-devel@linuxdriverproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Driver Project Developer List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devel@driverdev.osuosl.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, linux-clk@vger.kernel.org, linux-media@vger.kernel.org Content-Type: text/plain; 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[109.252.192.57]) by smtp.googlemail.com with ESMTPSA id z26sm781859ljn.98.2020.12.17.12.28.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 17 Dec 2020 12:28:57 -0800 (PST) Subject: Re: [PATCH v2 47/48] ARM: tegra: ventana: Support CPU voltage scaling and thermal throttling To: Daniel Lezcano , Thierry Reding , Jonathan Hunter , Mark Brown , Liam Girdwood , Ulf Hansson , Mauro Carvalho Chehab , Rob Herring , Peter Geis , Nicolas Chauvet , Krzysztof Kozlowski , "Rafael J. Wysocki" , Kevin Hilman , Peter De Schrijver , Viresh Kumar , Stephen Boyd , Michael Turquette References: <20201217180638.22748-1-digetx@gmail.com> <20201217180638.22748-48-digetx@gmail.com> <91139f8b-0b83-dd8a-ba53-8e7a499e6344@linaro.org> <776e0e84-e395-2bfb-f1ee-c34864b1cf16@linaro.org> From: Dmitry Osipenko Message-ID: Date: Thu, 17 Dec 2020 23:28:56 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.2 MIME-Version: 1.0 In-Reply-To: <776e0e84-e395-2bfb-f1ee-c34864b1cf16@linaro.org> Content-Language: en-US X-Mailman-Approved-At: Fri, 18 Dec 2020 08:31:48 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devel@driverdev.osuosl.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, linux-clk@vger.kernel.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" MTcuMTIuMjAyMCAyMjozNiwgRGFuaWVsIExlemNhbm8g0L/QuNGI0LXRgjoKPj4+PiArCQkJCQl0 eXBlID0gImNyaXRpY2FsIjsKPj4+PiArCQkJCX07Cj4+Pj4gKwkJCX07Cj4+Pj4gKwo+Pj4+ICsJ CQljb29saW5nLW1hcHMgewo+Pj4+ICsJCQkJbWFwMCB7Cj4+Pj4gKwkJCQkJdHJpcCA9IDwmdHJp cDA+Owo+Pj4+ICsJCQkJCWNvb2xpbmctZGV2aWNlID0gPCZjcHUwIFRIRVJNQUxfTk9fTElNSVQg VEhFUk1BTF9OT19MSU1JVD47Cj4+PiBZb3Ugc2hvdWxkIGFkZCBhbGwgQ1BVcyBoZXJlLgo+Pgo+ PiBBbGwgQ1BVIGNvcmVzIGFyZSBjb3VwbGVkIG9uIFRlZ3JhIGluIHJlZ2FyZHMgdG8gQ1BVRnJl cSwgaGVuY2UgSSB0aGluawo+PiBpdCB3b24ndCBtYWtlIGFueSBkaWZmZXJlbmNlIGlmIHNlY29u ZGFyeSBDUFUgY29yZXMgd2lsbCBiZSBhZGRlZCBoZXJlLAo+PiBpc24ndCBpdD8KPiBUaGUgZXhw bGFuYXRpb24gaXMgaW4gdGhlIGRlc2NyaXB0aW9uIG9mIGNvbW1pdCBlZjQ3MzQ1MDA0MDdjZTRk CgpJIHRoaW5rIHRoYXQgcmVhbGx5IG9ubHkgbWFrZXMgc2Vuc2UgaWYgQ1BVIGNvcmVzIGhhdmUg aW5kZXBlbmRlbnQgY2xvY2sKcmF0ZSBtYW5hZ2VtZW50LiBJSVJDLCBJIGFjdHVhbGx5IG1hZGUg c29tZSByZXNlYXJjaCBhYm91dCB0aGlzIGluIHRoZQpwYXN0IGFuZCBpbnRlbnRpb25hbGx5IHJl bW92ZWQgdGhlIHNlY29uZGFyeSBjb3JlcyBmcm9tIHRoZQpjb29saW5nLWRldmljZSBzaW5jZSB0 aGV5IGRpZG4ndCBtYWtlIGFueSBkaWZmZXJlbmNlIGZvciBhIGNvdXBsZWQgQ1BVCmNvcmVzLgoK VGhhdCBjb21taXQgYWxzbyBzYXlzOgoKIkJ1dCBhcyBzb29uIGFzIHRoaXMgQ1BVIG9yZGVyaW5n IGNoYW5nZXMgYW5kIGFueSBvdGhlciBDUFUgaXMgdXNlZCB0bwpicmluZyB1cCB0aGUgY29vbGlu ZyBkZXZpY2UsIHdlIHdpbGwgc3RhcnQgc2VlaW5nIGZhaWx1cmVzLiIKCkkgZG9uJ3QgcXVpdGUg dW5kZXJzdGFuZCB0byB3aGF0ICJmYWlsdXJlcyIgdGhhdCBjb21taXQgcmVmZXJyZXJzLiBJCnRy aWVkIHRvIGNoYW5nZSB0aGUgY3B1MCB0byBjcHUxIGluIHRoZSBjb29saW5nLWRldmljZSBhbmQg ZG9uJ3Qgc2VlIGFueQpmYWlsdXJlcy4gQ291bGQgeW91IHBsZWFzZSBjbGFyaWZ5IHRoaXM/CgpJ biBnZW5lcmFsIGl0IHNob3VsZCBiZSBmaW5lIHRvIGFkZCBhbGwgdGhlIGNvcmVzIHRvIHRoZSBj b29saW5nLWRldmljZQphbmQgSSdsbCBkbyBpdCBpbiB2MywgYnV0IEkgd2FudCB0byBtYWtlIGl0 IGNsZWFyIHdoeSB0aGlzIGlzIG5lZWRlZC4KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMu ZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlz dGluZm8vZHJpLWRldmVsCg==