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Message-Id: <20240510-topic-gpus_are_cool_now-v1-10-ababc269a438@linaro.org>
Date: Fri, 10 May 2024 14:58:39 +0200
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Johan Hovold <johan+linaro@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Bjorn Andersson <quic_bjorande@...cinc.com>,
Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 10/12] 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@...aro.org>
---
arch/arm64/boot/dts/qcom/sm8450.dtsi | 48 ++++++++++++++----------------------
1 file changed, 18 insertions(+), 30 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index ee60fd257efe..38e8d3e9dd43 100644
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -4928,28 +4928,22 @@ 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";
};
};
};
@@ -4967,28 +4961,22 @@ 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";
};
};
};
--
2.40.1
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