From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AF3EF466AE5 for ; Fri, 28 Aug 2026 13:41:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787924489; cv=none; b=HK4moppVO7WznGdd8D9u+U0ce7uCzWC+ORu1B+5Qw2ZTHH+bk3tGNAdetnVosqM68B/ESt13VW+vB3eOwxHwSS+H8NaxWlqNyzei8/tKXJ7+BDb9RmssbXJxMZBZd7KhpohqsZxMngwKVAokWM8HgqijL7qjxZP6vzCZteXe6LU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787924489; c=relaxed/simple; bh=bDNekvoQ6EsvTgWcqctiw/kY1f4VrZJduk9j65q7Peg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=bd65jBNZP+aPs4gyfzO1VW6xvROM6a/6cxBmz5VmhojiKYbEgowHlmjsIuAKVNwVGH+niI4n12QNZTMJ2dzFHxXnpDvaFKh7QmypDeYLrEVdwMaD0OIJ5XxFvOEDzmBwrIDWd4+SJakJXi0DuISOZtB28s+vBvTBHyJtsoLpVHU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=mzbakfeu; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=Lni2AoCm; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="mzbakfeu"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="Lni2AoCm" Received: from pps.filterd (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 67SDSt0p3035319 for ; Fri, 28 Aug 2026 13:41:26 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= mq09nfYXa4hsmaBELAkkYMzQ/RytSt+u7hqsPGWH3WY=; b=mzbakfeu96WnXKyv YmK8A8WrAZ/0VYMsMxp5N91II4PY7XuHwGfHv042Gj7y/76N/BlMet0kzW8E2frj /1sycB+8TB8r+JOPK7PhZmMjVhIEinbouStOD4LG3Z2GKzGRaVUSLsNAa7BbSEQx h/PxNhLPDM5ln9jftCP8PqoOXzr1AgAfOehcQfURcKrWdVlgMu+QWP8QWsJe9cKn QwslOPeg8EvkxgOMXg7DYQf3FhSZKL85vJcczRE+HNHIfk/Mgu/JSe7udhgLzLbY 7wwxOAbiwOZc1l6+C7AnkwGGXq49CQqhUcJ5tXoay9ztjeiXhgFd7+StLD8U+3ZE BX5o2Q== Received: from mail-vk1-f198.google.com (mail-vk1-f198.google.com [209.85.221.198]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4gb1v3aetn-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Fri, 28 Aug 2026 13:41:26 +0000 (GMT) Received: by mail-vk1-f198.google.com with SMTP id 71dfb90a1353d-5c6e562b059so12575e0c.2 for ; Fri, 28 Aug 2026 06:41:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1787924486; x=1788529286; darn=vger.kernel.org; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:from:to:cc:subject:date:message-id:reply-to :content-type; bh=mq09nfYXa4hsmaBELAkkYMzQ/RytSt+u7hqsPGWH3WY=; b=Lni2AoCmkrPCs/UTfqDk96mxjC0DLD16yghqsuVHE4b/KTOvh1Ejjrp19HXJW3hkt1 W5QeLGJYw9Ot10lBZrjpp1w4AMDAGhGNcKFao0nEZgBKlRZsv3osG848rczLIntB/1W0 r6ycbpN3ymiumNbZxdmHO51WVDUQiKlS2/4vHliEyj9g4ZIl8Q+oSCizmrCSKC5JB0iH rOafhL2p7p+hQh5J1oFYmHU63++HLhdszeZCdar9BD9T9Bw3p3oXhw61ExeZKpEUnAgZ 9zmUTKcr7puBp3M/GbA3aSgTPTm7cAyQPe0GN9JEdU7pz0Nujgdv29B9p99LHLJqeo6f d6Eg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787924486; x=1788529286; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=mq09nfYXa4hsmaBELAkkYMzQ/RytSt+u7hqsPGWH3WY=; b=Jybwohnm8vzzKMMZn3anxBx58KLmB6HasmgFw2ieb7zFPAgduM+D63KtkUa2v5nysI D2GZPfhppcH9w3RC2uuPOPh4WChX6sdmDY63sNcCvQyLvkE+nPE2GDKqNKLZvAabClnb 6E24dYOlFGnnjOSopGd8UHdnoqeZsX+biVXVeSUStMsGez3XxaL8Aow0hAUx31okXEyj zFqz+9X1gPlaJLbkEnLAlzrMJFn8WpWBymjELsVL7Pu+a42inn8WfexkQzlJMDu6mBdJ pl4E53vWqr4h9sJeaTQtoa2/c3QXPEayzm7hWb1Cz6HlnzHJRYitnr1g66Cq1e6jEGdV +qyQ== X-Forwarded-Encrypted: i=1; AHgh+RqZpXGDxgDfrfO8YVq7jq4crna1zQTXFK1Fh4a3JIjGPb1lnu66vHlCKsXYyF2Ckh0fGDfAaZfb4TwVxnwTfX4=@vger.kernel.org X-Gm-Message-State: AFuF++mu50xqE8TAsZ3swTRulEj0xhSA6PWqypeaMDCg22mN8fQjnjGl D+vhDiRIpj7Bj/l/cMPf8XUvgHv66zcx0fdq+JnSMHgTQgKlFszPKeyNJd+TTMlLgIFqYLfLHkz vK7uT75KLyFlCZ/cfVHans3e+y8zqH1bW1l3QbaoExsyodGYdFFHnWf1a06ef3TMhGGIDoLU= X-Gm-Gg: AR+sD10CJUrrkhEg+yj1ai7Nc/im8sNTZ09ikPOdazDbKJttVRQFpColdnqf7NjONBV 9mRXKfaGRtwokq1ytf4VZ1plFODO4rSRoduJRhWyS7SpfovIyczDM2TzIIn6+ltIMcDbO6zdm0H d66IZ8wOPPd3/ATkuNfNBQW/l/0NnZWIrQ/CY3raDd+9zZnuMhZP8yJjNBOgN94VSz4pQXM+RYf QlKWMYNAsVgkQSsNX4BHX1rre1mEPaxcEKP8b4IUuRKWp48gPV8ZNIUqBJACKnOHDfhMxCdzlnl 4zWaMc2prOOQsg+UG+XCROC0+Df8IqFxVNtPDiau8F4J7GokMSRTIarbswqe0ABGT+rSNJIvd4k zwdpieOIq8ppNAsyQFCvRbiQ= X-Received: by 2002:ac5:c89a:0:b0:5bd:7446:e3ff with SMTP id 71dfb90a1353d-5c680ea208emr904047e0c.0.1787924485657; Fri, 28 Aug 2026 06:41:25 -0700 (PDT) X-Received: by 2002:ac5:c89a:0:b0:5bd:7446:e3ff with SMTP id 71dfb90a1353d-5c680ea208emr904033e0c.0.1787924485232; Fri, 28 Aug 2026 06:41:25 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-3a30559cfccsm3004681fa.40.2026.08.28.06.41.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Aug 2026 06:41:24 -0700 (PDT) Message-ID: <7b751d60-e8f3-4e22-8495-16dbd5163add@oss.qualcomm.com> Date: Fri, 28 Aug 2026 15:41:15 +0200 Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 7/9] arm64: dts: qcom: talos: Enable CDSP cooling To: Gaurav Kohli , Bjorn Andersson , Mathieu Poirier , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Daniel Lezcano , Amit Kucheria , Konrad Dybcio , "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Manivannan Sadhasivam , Kees Cook , "Gustavo A. R. Silva" , cros-qcom-dts-watchers@chromium.org Cc: linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-hardening@vger.kernel.org, manaf.pallikunhi@oss.qualcomm.com, Dmitry Baryshkov References: <20260809-b4-qmi-tmd-v8-0-b15d47adc379@oss.qualcomm.com> <20260809-b4-qmi-tmd-v8-7-b15d47adc379@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260809-b4-qmi-tmd-v8-7-b15d47adc379@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI4MDExOCBTYWx0ZWRfX/RzCXkH/Tygv c8aZZ9/7eNLeppneXZelx7j7lA9DQA/3FLpK2AgUkR5QgfMzBpQk+HEgdk1RGBkfxgyI8me+/4z /5A7QZmqGWhz4kkfzQ2eyfuPJU8d2xveMFCoPNLqxDuFvW6t/W3zaMT8m3771UdF00VioXlksNO EkHUOjIqEW6S/2ghEVZYsXwfLUIFC+LWcxOrn0+aVkDwZIgGpPfmqQDrhJecBgEpELrVC9Uomq+ NIlKrk5zFnSkMsBEcpimfJS8Bw8qv4VtOOJSWXO8Fy0SFZ+grlXK5VDns//p8NkJAF3DNBLSEEJ mCMs5FFLoeWWBso8jC/ZDMgXcvRQFCc5C95YMLc+uK+vvCKnXhH8iCsj8KybbkT+48uwKx7vnFI V88F5Ti8CMIneCBditDetz1nHnl33A9DmylDkQdEo9oN9ML5MsWNFVBPUMuW09rVnCUAfKNIUdA As1L+ZOHz+oWJbbY9Ng== X-Proofpoint-ORIG-GUID: qsp-45DffnR-00nvAu_EGshD0K8EpfVU X-Proofpoint-Spam-Info: AW1haW4tMjYwODI4MDExOCBTYWx0ZWRfX9dt//6fbh5Do BjwPC9K+UwHjQvsjAVV7nt0HpCP8sQDB1JQmUfYz1eK3VMWf5ZzhtTJk5zzN7Z5iM8b+9N7SlPy wf5x2CvWj4J8WGOHsRjXCoa0JLg8E1Y= X-Authority-Analysis: v=2.4 cv=faedDUQF c=1 sm=1 tr=0 ts=6a919006 cx=c_pps a=1Os3MKEOqt8YzSjcPV0cFA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=EUspDBNiAAAA:8 a=_nN_CDt7C_a4776dohAA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=hhpmQAJR8DioWGSBphRh:22 X-Proofpoint-GUID: qsp-45DffnR-00nvAu_EGshD0K8EpfVU X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-28_04,2026-08-27_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 phishscore=0 spamscore=0 impostorscore=0 lowpriorityscore=0 suspectscore=0 adultscore=0 malwarescore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608280118 On 8/9/26 2:29 PM, Gaurav Kohli wrote: > Unlike the CPU, the CDSP does not throttle its speed automatically > when it reaches high temperatures in talos. > > Set up CDSP cooling by throttling the cdsp, when it reaches 105°C. > > Add polling-delay-passive so the governor periodically evaluates > the zone during passive cooling and steps up cooling levels when > temperature stabilizes below the next trip. > > Reviewed-by: Daniel Lezcano > Reviewed-by: Dmitry Baryshkov > Signed-off-by: Gaurav Kohli > --- Reviewed-by: Konrad Dybcio Konrad