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Message-Id: <20240510-topic-gpus_are_cool_now-v1-11-ababc269a438@linaro.org>
Date: Fri, 10 May 2024 14:58:40 +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 11/12] arm64: dts: qcom: sm8550: 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/sm8550.dtsi | 208 ++++++++++++++---------------------
1 file changed, 80 insertions(+), 128 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index 51c547872438..23f769a5b1d4 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -5367,34 +5367,28 @@ gpuss-0-thermal {
cooling-maps {
map0 {
- trip = <&gpu0_junction_config>;
+ trip = <&gpu0_alert0>;
cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
trips {
- thermal-engine-config {
- temperature = <125000>;
+ gpu0_alert0: trip-point0 {
+ temperature = <85000>;
hysteresis = <1000>;
type = "passive";
};
- thermal-hal-config {
- temperature = <125000>;
+ trip-point1 {
+ temperature = <90000>;
hysteresis = <1000>;
- type = "passive";
- };
-
- reset-mon-config {
- temperature = <115000>;
- hysteresis = <5000>;
- type = "passive";
+ type = "hot";
};
- gpu0_junction_config: junction-config {
- temperature = <95000>;
- hysteresis = <5000>;
- type = "passive";
+ trip-point2 {
+ temperature = <110000>;
+ hysteresis = <1000>;
+ type = "critical";
};
};
};
@@ -5406,34 +5400,28 @@ gpuss-1-thermal {
cooling-maps {
map0 {
- trip = <&gpu1_junction_config>;
+ trip = <&gpu1_alert0>;
cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
trips {
- thermal-engine-config {
- temperature = <125000>;
+ gpu1_alert0: trip-point0 {
+ temperature = <85000>;
hysteresis = <1000>;
type = "passive";
};
- thermal-hal-config {
- temperature = <125000>;
+ trip-point1 {
+ temperature = <90000>;
hysteresis = <1000>;
- type = "passive";
- };
-
- reset-mon-config {
- temperature = <115000>;
- hysteresis = <5000>;
- type = "passive";
+ type = "hot";
};
- gpu1_junction_config: junction-config {
- temperature = <95000>;
- hysteresis = <5000>;
- type = "passive";
+ trip-point2 {
+ temperature = <110000>;
+ hysteresis = <1000>;
+ type = "critical";
};
};
};
@@ -5445,34 +5433,28 @@ gpuss-2-thermal {
cooling-maps {
map0 {
- trip = <&gpu2_junction_config>;
+ trip = <&gpu2_alert0>;
cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
trips {
- thermal-engine-config {
- temperature = <125000>;
+ gpu2_alert0: trip-point0 {
+ temperature = <85000>;
hysteresis = <1000>;
type = "passive";
};
- thermal-hal-config {
- temperature = <125000>;
+ trip-point1 {
+ temperature = <90000>;
hysteresis = <1000>;
- type = "passive";
- };
-
- reset-mon-config {
- temperature = <115000>;
- hysteresis = <5000>;
- type = "passive";
+ type = "hot";
};
- gpu2_junction_config: junction-config {
- temperature = <95000>;
- hysteresis = <5000>;
- type = "passive";
+ trip-point2 {
+ temperature = <110000>;
+ hysteresis = <1000>;
+ type = "critical";
};
};
};
@@ -5484,34 +5466,28 @@ gpuss-3-thermal {
cooling-maps {
map0 {
- trip = <&gpu3_junction_config>;
+ trip = <&gpu3_alert0>;
cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
trips {
- thermal-engine-config {
- temperature = <125000>;
+ gpu3_alert0: trip-point0 {
+ temperature = <85000>;
hysteresis = <1000>;
type = "passive";
};
- thermal-hal-config {
- temperature = <125000>;
+ trip-point1 {
+ temperature = <90000>;
hysteresis = <1000>;
- type = "passive";
- };
-
- reset-mon-config {
- temperature = <115000>;
- hysteresis = <5000>;
- type = "passive";
+ type = "hot";
};
- gpu3_junction_config: junction-config {
- temperature = <95000>;
- hysteresis = <5000>;
- type = "passive";
+ trip-point2 {
+ temperature = <110000>;
+ hysteresis = <1000>;
+ type = "critical";
};
};
};
@@ -5523,34 +5499,28 @@ gpuss-4-thermal {
cooling-maps {
map0 {
- trip = <&gpu4_junction_config>;
+ trip = <&gpu4_alert0>;
cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
trips {
- thermal-engine-config {
- temperature = <125000>;
+ gpu4_alert0: trip-point0 {
+ temperature = <85000>;
hysteresis = <1000>;
type = "passive";
};
- thermal-hal-config {
- temperature = <125000>;
+ trip-point1 {
+ temperature = <90000>;
hysteresis = <1000>;
- type = "passive";
- };
-
- reset-mon-config {
- temperature = <115000>;
- hysteresis = <5000>;
- type = "passive";
+ type = "hot";
};
- gpu4_junction_config: junction-config {
- temperature = <95000>;
- hysteresis = <5000>;
- type = "passive";
+ trip-point2 {
+ temperature = <110000>;
+ hysteresis = <1000>;
+ type = "critical";
};
};
};
@@ -5562,34 +5532,28 @@ gpuss-5-thermal {
cooling-maps {
map0 {
- trip = <&gpu5_junction_config>;
+ trip = <&gpu5_alert0>;
cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
trips {
- thermal-engine-config {
- temperature = <125000>;
+ gpu5_alert0: trip-point0 {
+ temperature = <85000>;
hysteresis = <1000>;
type = "passive";
};
- thermal-hal-config {
- temperature = <125000>;
+ trip-point1 {
+ temperature = <90000>;
hysteresis = <1000>;
- type = "passive";
- };
-
- reset-mon-config {
- temperature = <115000>;
- hysteresis = <5000>;
- type = "passive";
+ type = "hot";
};
- gpu5_junction_config: junction-config {
- temperature = <95000>;
- hysteresis = <5000>;
- type = "passive";
+ trip-point2 {
+ temperature = <110000>;
+ hysteresis = <1000>;
+ type = "critical";
};
};
};
@@ -5601,34 +5565,28 @@ gpuss-6-thermal {
cooling-maps {
map0 {
- trip = <&gpu6_junction_config>;
+ trip = <&gpu6_alert0>;
cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
trips {
- thermal-engine-config {
- temperature = <125000>;
+ gpu6_alert0: trip-point0 {
+ temperature = <85000>;
hysteresis = <1000>;
type = "passive";
};
- thermal-hal-config {
- temperature = <125000>;
+ trip-point1 {
+ temperature = <90000>;
hysteresis = <1000>;
- type = "passive";
- };
-
- reset-mon-config {
- temperature = <115000>;
- hysteresis = <5000>;
- type = "passive";
+ type = "hot";
};
- gpu6_junction_config: junction-config {
- temperature = <95000>;
- hysteresis = <5000>;
- type = "passive";
+ trip-point2 {
+ temperature = <110000>;
+ hysteresis = <1000>;
+ type = "critical";
};
};
};
@@ -5640,34 +5598,28 @@ gpuss-7-thermal {
cooling-maps {
map0 {
- trip = <&gpu7_junction_config>;
+ trip = <&gpu7_alert0>;
cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
trips {
- thermal-engine-config {
- temperature = <125000>;
+ gpu7_alert0: trip-point0 {
+ temperature = <85000>;
hysteresis = <1000>;
type = "passive";
};
- thermal-hal-config {
- temperature = <125000>;
+ trip-point1 {
+ temperature = <90000>;
hysteresis = <1000>;
- type = "passive";
- };
-
- reset-mon-config {
- temperature = <115000>;
- hysteresis = <5000>;
- type = "passive";
+ type = "hot";
};
- gpu7_junction_config: junction-config {
- temperature = <95000>;
- hysteresis = <5000>;
- type = "passive";
+ trip-point2 {
+ temperature = <110000>;
+ hysteresis = <1000>;
+ type = "critical";
};
};
};
--
2.40.1
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