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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E2895C77B76 for ; Mon, 17 Apr 2023 09:15:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229540AbjDQJPL (ORCPT ); Mon, 17 Apr 2023 05:15:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43772 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230005AbjDQJPI (ORCPT ); Mon, 17 Apr 2023 05:15:08 -0400 Received: from mail-ej1-x635.google.com (mail-ej1-x635.google.com [IPv6:2a00:1450:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 156013594 for ; Mon, 17 Apr 2023 02:15:05 -0700 (PDT) Received: by mail-ej1-x635.google.com with SMTP id vc20so7341096ejc.10 for ; Mon, 17 Apr 2023 02:15:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1681722903; x=1684314903; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=SMv8PZ53O5KYo73k6iASy7jKT1DCbFAwjh9Wp7pGud0=; b=qCghISR1WsxRWdzM4V7UFdyw05zhrCZCu/TOLETzb7KU+h0S/7Rithm7b6X502e50K AWfZbhA5OAcuTSqLqUnu1DUDPpsD7TpG5YOJ+b0UCcjoqGgvgXY5hZxqXIya5xSkxyZt d27Ln8HduB+/5Ir7kKWrmLzTmt74HoVGb9F7lbWs82I8FFUJ/RhXMP/Z/+r0k2ZNiCSB q9nz6/p7ze23Ig9lSjXC4sZJMDhaXSzKwFpAVtHVOPXbyk+12NNTQni/aAL6C/WpL9lR TJv9jcwxOVzWwHPeM+o/7W+I616JCv14F+fTk177aBzI7c1VPOHh9jlfdvDYKq0irTQg mq0w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681722903; x=1684314903; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=SMv8PZ53O5KYo73k6iASy7jKT1DCbFAwjh9Wp7pGud0=; b=b/rounNgTVhCQWfFpFsEAKa1uVi3Y08lXmFsV+YYf7lxjw9hDiWn6lBhEqVQJcFEIp Av/4WEy1eXMZXpMiMC5LjerrNNFCc/e1Ug/1yk31BwMipiw2pQp40vWfw1RZwDi0LR3L Z0BEXh9dSOUZRKD/nBkNV+ECFYkh1w1K+PLvdo5+dqiwg4enkUe6cJ8SANayHERAfI7u vlLrttfN8l6ycoWJ7p/9AhsBq3rEvabVkQOfnV/tkJeifmecYzq2mX5GTkD6A1WgF8jB myudWwKOygR5j3aC1kKKn0kfbTgiNqVqwHOHGLrDnaeaDtl/UGtYnEpBrD+Cgl/lYWoC eLKQ== X-Gm-Message-State: AAQBX9ew3m2pIgdxMuuh+lUidYrcVKe8SjuqwNsZxi0jwcdq9A0ofjD/ 82tRsPT3fVjleAJjjaW1ikjRkyUZhS5Ni6+KfF7oEEWT X-Google-Smtp-Source: AKy350ZVql9TKGl1Q96l3jyXZ3oiegO0Q+ngbdENs6m1PoiIW4VZnQ94fowjzCtJ8ymJESG2YPJDjw== X-Received: by 2002:a17:906:6c9:b0:94a:959f:6d58 with SMTP id v9-20020a17090606c900b0094a959f6d58mr7283041ejb.18.1681722903429; Mon, 17 Apr 2023 02:15:03 -0700 (PDT) Received: from [192.168.2.1] (146725694.box.freepro.com. [130.180.211.218]) by smtp.googlemail.com with ESMTPSA id hu20-20020a170907a09400b0094f432f2429sm2336871ejc.109.2023.04.17.02.15.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 17 Apr 2023 02:15:02 -0700 (PDT) Message-ID: <915723aa-14e7-efc7-859b-ceab0eaeadec@linaro.org> Date: Mon, 17 Apr 2023 11:15:00 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.2 Subject: Re: [PATCH 09/10] arm64: tegra: Rework SOCTHERM on Tegra132 and Tegra210 Content-Language: en-US To: Thierry Reding Cc: "Rafael J . Wysocki" , Rob Herring , Krzysztof Kozlowski , Amit Kucheria , Zhang Rui , Jon Hunter , linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org References: <20230414125721.1043589-1-thierry.reding@gmail.com> <20230414125721.1043589-10-thierry.reding@gmail.com> From: Daniel Lezcano In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org On 17/04/2023 11:06, Thierry Reding wrote: [ ... ] >> >> If the hardware mitigation is 'heavy', don't you want to have DVFS acting >> before hardware throttling ? > > The throttling here is in fact some form of DVFS, but yes, generally we > would likely want to have additional forms of DVFS before we reach this > state. We could add CPU cooling devices and there's also a mechanism to > throttle the DRAM frequency on certain boards. > > But those are mostly orthogonal to this series. The goal here is to get > rid of the throttling mechanism as a cooling device. Right, thanks -- Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog