linux-kernel - Re: [PATCH v4 2/4] arm64: dts: qcom: sm8650: setup gpu thermal with higher temperatures

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <e1f066f2-d8ff-457d-8d10-c08b525013c1@oss.qualcomm.com>
Date: Mon, 3 Feb 2025 14:31:34 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Neil Armstrong <neil.armstrong@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/4] arm64: dts: qcom: sm8650: setup gpu thermal with
 higher temperatures

On 3.02.2025 2:23 PM, Neil Armstrong wrote:
> On the SM8650, the dynamic clock and voltage scaling (DCVS) for the GPU
> is done from the HLOS, but the GPU can achieve a much higher temperature
> before failing according the reference downstream implementation.
> 
> Set higher temperatures in the GPU trip points corresponding to
> the temperatures provided by Qualcomm in the dowstream source, much
> closer to the junction temperature and with a higher critical
> temperature trip in the case the HLOS DCVS cannot handle the
> temperature surge.
> 
> The tsens MAX_THRESHOLD is set to 120C on those platforms, so set
> the hot to 110C to leave a chance to HLOS to react and critical to
> 115C to avoid the monitor thermal shutdown.
> 
> Fixes: 497624ed5506 ("arm64: dts: qcom: sm8650: Throttle the GPU when overheating")
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad