Commit 4be0dd44 authored May 10, 2024 by Konrad Dybcio Committed by Bjorn Andersson Jun 07, 2024

arm64: dts: qcom: sm8450: Throttle the GPU when overheating



Add an 85C passive trip point to ensure the thermal framework takes
sufficient action to prevent reaching junction temperature and a
110C critical point to help avoid hw damage.

Remove the copypasta-from-downstream userspace governor entries while
at it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240510-topic-gpus_are_cool_now-v1-10-ababc269a438@linaro.org


Signed-off-by: Bjorn Andersson <andersson@kernel.org>

parent 10a55552

arch/arm64/boot/dts/qcom/sm8450.dtsi

+18 −30

Original line number	Diff line number	Diff line
		@@ -5031,28 +5031,22 @@ map0 {
		};

		trips {
		thermal-engine-config {
		temperature = <125000>;
		gpu_top_alert0: trip-point0 {
		temperature = <85000>;
		hysteresis = <1000>;
		type = "passive";
		};

		thermal-hal-config {
		temperature = <125000>;
		trip-point1 {
		temperature = <90000>;
		hysteresis = <1000>;
		type = "passive";
		};

		reset-mon-cfg {
		temperature = <115000>;
		hysteresis = <5000>;
		type = "passive";
		type = "hot";
		};

		gpu_top_alert0: trip-point0 {
		temperature = <95000>;
		hysteresis = <5000>;
		type = "passive";
		trip-point2 {
		temperature = <110000>;
		hysteresis = <1000>;
		type = "critical";
		};
		};
		};
		@@ -5070,28 +5064,22 @@ map0 {
		};

		trips {
		thermal-engine-config {
		temperature = <125000>;
		gpu_bottom_alert0: trip-point0 {
		temperature = <85000>;
		hysteresis = <1000>;
		type = "passive";
		};

		thermal-hal-config {
		temperature = <125000>;
		trip-point1 {
		temperature = <90000>;
		hysteresis = <1000>;
		type = "passive";
		};

		reset-mon-cfg {
		temperature = <115000>;
		hysteresis = <5000>;
		type = "passive";
		type = "hot";
		};

		gpu_bottom_alert0: trip-point0 {
		temperature = <95000>;
		hysteresis = <5000>;
		type = "passive";
		trip-point2 {
		temperature = <110000>;
		hysteresis = <1000>;
		type = "critical";
		};
		};
		};