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Message-Id: <20250219-x1e80100-thermal-fixes-v1-3-d110e44ac3f9@linaro.org>
Date: Wed, 19 Feb 2025 12:36:20 +0100
From: Stephan Gerhold <stephan.gerhold@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Abel Vesa <abel.vesa@...aro.org>,
Rajendra Nayak <quic_rjendra@...cinc.com>,
Akhil P Oommen <quic_akhilpo@...cinc.com>, Johan Hovold <johan@...nel.org>,
linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH 3/4] arm64: dts: qcom: x1e80100: Add GPU cooling
Unlike the CPU, the GPU does not throttle its speed automatically when it
reaches high temperatures. With certain high GPU loads it is possible to
reach the critical hardware shutdown temperature of 120°C, endangering the
hardware and making it impossible to run certain applications.
Set up GPU cooling similar to the ACPI tables, by throttling the GPU speed
when reaching 95°C and polling every 200ms.
Cc: stable@...r.kernel.org
Fixes: 721e38301b79 ("arm64: dts: qcom: x1e80100: Add gpu support")
Signed-off-by: Stephan Gerhold <stephan.gerhold@...aro.org>
---
arch/arm64/boot/dts/qcom/x1e80100.dtsi | 169 +++++++++++++++++----------------
1 file changed, 89 insertions(+), 80 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
index 9893fa8353f144e0ee723ab5312cd95aadab041d..a0d4be29a489618a152f79d15a847338271f12d4 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
@@ -20,6 +20,7 @@
#include <dt-bindings/soc/qcom,gpr.h>
#include <dt-bindings/soc/qcom,rpmh-rsc.h>
#include <dt-bindings/sound/qcom,q6dsp-lpass-ports.h>
+#include <dt-bindings/thermal/thermal.h>
/ {
interrupt-parent = <&intc>;
@@ -9359,24 +9360,25 @@ nsp3-critical {
};
gpuss-0-thermal {
- polling-delay-passive = <10>;
+ polling-delay-passive = <200>;
thermal-sensors = <&tsens3 5>;
- trips {
- trip-point0 {
- temperature = <85000>;
- hysteresis = <1000>;
- type = "passive";
+ cooling-maps {
+ map0 {
+ trip = <&gpuss0_alert0>;
+ cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
+ };
- trip-point1 {
- temperature = <90000>;
+ trips {
+ gpuss0_alert0: trip-point0 {
+ temperature = <95000>;
hysteresis = <1000>;
- type = "hot";
+ type = "passive";
};
- trip-point2 {
+ gpu-critical {
temperature = <115000>;
hysteresis = <1000>;
type = "critical";
@@ -9385,24 +9387,25 @@ trip-point2 {
};
gpuss-1-thermal {
- polling-delay-passive = <10>;
+ polling-delay-passive = <200>;
thermal-sensors = <&tsens3 6>;
- trips {
- trip-point0 {
- temperature = <85000>;
- hysteresis = <1000>;
- type = "passive";
+ cooling-maps {
+ map0 {
+ trip = <&gpuss1_alert0>;
+ cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
+ };
- trip-point1 {
- temperature = <90000>;
+ trips {
+ gpuss1_alert0: trip-point0 {
+ temperature = <95000>;
hysteresis = <1000>;
- type = "hot";
+ type = "passive";
};
- trip-point2 {
+ gpu-critical {
temperature = <115000>;
hysteresis = <1000>;
type = "critical";
@@ -9411,24 +9414,25 @@ trip-point2 {
};
gpuss-2-thermal {
- polling-delay-passive = <10>;
+ polling-delay-passive = <200>;
thermal-sensors = <&tsens3 7>;
- trips {
- trip-point0 {
- temperature = <85000>;
- hysteresis = <1000>;
- type = "passive";
+ cooling-maps {
+ map0 {
+ trip = <&gpuss2_alert0>;
+ cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
+ };
- trip-point1 {
- temperature = <90000>;
+ trips {
+ gpuss2_alert0: trip-point0 {
+ temperature = <95000>;
hysteresis = <1000>;
- type = "hot";
+ type = "passive";
};
- trip-point2 {
+ gpu-critical {
temperature = <115000>;
hysteresis = <1000>;
type = "critical";
@@ -9437,24 +9441,25 @@ trip-point2 {
};
gpuss-3-thermal {
- polling-delay-passive = <10>;
+ polling-delay-passive = <200>;
thermal-sensors = <&tsens3 8>;
- trips {
- trip-point0 {
- temperature = <85000>;
- hysteresis = <1000>;
- type = "passive";
+ cooling-maps {
+ map0 {
+ trip = <&gpuss3_alert0>;
+ cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
+ };
- trip-point1 {
- temperature = <90000>;
+ trips {
+ gpuss3_alert0: trip-point0 {
+ temperature = <95000>;
hysteresis = <1000>;
- type = "hot";
+ type = "passive";
};
- trip-point2 {
+ gpu-critical {
temperature = <115000>;
hysteresis = <1000>;
type = "critical";
@@ -9463,24 +9468,25 @@ trip-point2 {
};
gpuss-4-thermal {
- polling-delay-passive = <10>;
+ polling-delay-passive = <200>;
thermal-sensors = <&tsens3 9>;
- trips {
- trip-point0 {
- temperature = <85000>;
- hysteresis = <1000>;
- type = "passive";
+ cooling-maps {
+ map0 {
+ trip = <&gpuss4_alert0>;
+ cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
+ };
- trip-point1 {
- temperature = <90000>;
+ trips {
+ gpuss4_alert0: trip-point0 {
+ temperature = <95000>;
hysteresis = <1000>;
- type = "hot";
+ type = "passive";
};
- trip-point2 {
+ gpu-critical {
temperature = <115000>;
hysteresis = <1000>;
type = "critical";
@@ -9489,24 +9495,25 @@ trip-point2 {
};
gpuss-5-thermal {
- polling-delay-passive = <10>;
+ polling-delay-passive = <200>;
thermal-sensors = <&tsens3 10>;
- trips {
- trip-point0 {
- temperature = <85000>;
- hysteresis = <1000>;
- type = "passive";
+ cooling-maps {
+ map0 {
+ trip = <&gpuss5_alert0>;
+ cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
+ };
- trip-point1 {
- temperature = <90000>;
+ trips {
+ gpuss5_alert0: trip-point0 {
+ temperature = <95000>;
hysteresis = <1000>;
- type = "hot";
+ type = "passive";
};
- trip-point2 {
+ gpu-critical {
temperature = <115000>;
hysteresis = <1000>;
type = "critical";
@@ -9515,24 +9522,25 @@ trip-point2 {
};
gpuss-6-thermal {
- polling-delay-passive = <10>;
+ polling-delay-passive = <200>;
thermal-sensors = <&tsens3 11>;
- trips {
- trip-point0 {
- temperature = <85000>;
- hysteresis = <1000>;
- type = "passive";
+ cooling-maps {
+ map0 {
+ trip = <&gpuss6_alert0>;
+ cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
+ };
- trip-point1 {
- temperature = <90000>;
+ trips {
+ gpuss6_alert0: trip-point0 {
+ temperature = <95000>;
hysteresis = <1000>;
- type = "hot";
+ type = "passive";
};
- trip-point2 {
+ gpu-critical {
temperature = <115000>;
hysteresis = <1000>;
type = "critical";
@@ -9541,24 +9549,25 @@ trip-point2 {
};
gpuss-7-thermal {
- polling-delay-passive = <10>;
+ polling-delay-passive = <200>;
thermal-sensors = <&tsens3 12>;
- trips {
- trip-point0 {
- temperature = <85000>;
- hysteresis = <1000>;
- type = "passive";
+ cooling-maps {
+ map0 {
+ trip = <&gpuss7_alert0>;
+ cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
+ };
- trip-point1 {
- temperature = <90000>;
+ trips {
+ gpuss7_alert0: trip-point0 {
+ temperature = <95000>;
hysteresis = <1000>;
- type = "hot";
+ type = "passive";
};
- trip-point2 {
+ gpu-critical {
temperature = <115000>;
hysteresis = <1000>;
type = "critical";
--
2.47.2
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