From 497624ed550604b3f713f53bc506e49ce5046e5f Mon Sep 17 00:00:00 2001 From: Konrad Dybcio Date: Fri, 10 May 2024 14:58:41 +0200 Subject: [PATCH] arm64: dts: qcom: sm8650: 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. Also, register the GPU as a cooling device and hook it up to the right thermal zones. Signed-off-by: Konrad Dybcio Link: https://lore.kernel.org/r/20240510-topic-gpus_are_cool_now-v1-12-ababc269a438@linaro.org Signed-off-by: Bjorn Andersson --- arch/arm64/boot/dts/qcom/sm8650.dtsi | 169 ++++++++++++++++++++++----- 1 file changed, 137 insertions(+), 32 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi index 9841d5cba4e0..5b8b1d581a13 100644 --- a/arch/arm64/boot/dts/qcom/sm8650.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi @@ -2632,6 +2632,7 @@ operating-points-v2 = <&gpu_opp_table>; qcom,gmu = <&gmu>; + #cooling-cells = <2>; status = "disabled"; @@ -6028,16 +6029,29 @@ thermal-sensors = <&tsens2 1>; + cooling-maps { + map0 { + trip = <&gpu0_alert0>; + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + trips { - trip-point0 { + gpu0_alert0: trip-point0 { + temperature = <85000>; + hysteresis = <1000>; + type = "passive"; + }; + + trip-point1 { temperature = <90000>; - hysteresis = <2000>; + hysteresis = <1000>; type = "hot"; }; - gpuss0-critical { + trip-point2 { temperature = <110000>; - hysteresis = <0>; + hysteresis = <1000>; type = "critical"; }; }; @@ -6048,16 +6062,29 @@ thermal-sensors = <&tsens2 2>; + cooling-maps { + map0 { + trip = <&gpu1_alert0>; + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + trips { - trip-point0 { + gpu1_alert0: trip-point0 { + temperature = <85000>; + hysteresis = <1000>; + type = "passive"; + }; + + trip-point1 { temperature = <90000>; - hysteresis = <2000>; + hysteresis = <1000>; type = "hot"; }; - gpuss1-critical { + trip-point2 { temperature = <110000>; - hysteresis = <0>; + hysteresis = <1000>; type = "critical"; }; }; @@ -6068,16 +6095,29 @@ thermal-sensors = <&tsens2 3>; + cooling-maps { + map0 { + trip = <&gpu2_alert0>; + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + trips { - trip-point0 { + gpu2_alert0: trip-point0 { + temperature = <85000>; + hysteresis = <1000>; + type = "passive"; + }; + + trip-point1 { temperature = <90000>; - hysteresis = <2000>; + hysteresis = <1000>; type = "hot"; }; - gpuss2-critical { + trip-point2 { temperature = <110000>; - hysteresis = <0>; + hysteresis = <1000>; type = "critical"; }; }; @@ -6088,16 +6128,29 @@ thermal-sensors = <&tsens2 4>; + cooling-maps { + map0 { + trip = <&gpu3_alert0>; + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + trips { - trip-point0 { + gpu3_alert0: trip-point0 { + temperature = <85000>; + hysteresis = <1000>; + type = "passive"; + }; + + trip-point1 { temperature = <90000>; - hysteresis = <2000>; + hysteresis = <1000>; type = "hot"; }; - gpuss3-critical { + trip-point2 { temperature = <110000>; - hysteresis = <0>; + hysteresis = <1000>; type = "critical"; }; }; @@ -6108,16 +6161,29 @@ thermal-sensors = <&tsens2 5>; + cooling-maps { + map0 { + trip = <&gpu4_alert0>; + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + trips { - trip-point0 { + gpu4_alert0: trip-point0 { + temperature = <85000>; + hysteresis = <1000>; + type = "passive"; + }; + + trip-point1 { temperature = <90000>; - hysteresis = <2000>; + hysteresis = <1000>; type = "hot"; }; - gpuss4-critical { + trip-point2 { temperature = <110000>; - hysteresis = <0>; + hysteresis = <1000>; type = "critical"; }; }; @@ -6128,16 +6194,29 @@ thermal-sensors = <&tsens2 6>; + cooling-maps { + map0 { + trip = <&gpu5_alert0>; + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + trips { - trip-point0 { + gpu5_alert0: trip-point0 { + temperature = <85000>; + hysteresis = <1000>; + type = "passive"; + }; + + trip-point1 { temperature = <90000>; - hysteresis = <2000>; + hysteresis = <1000>; type = "hot"; }; - gpuss5-critical { + trip-point2 { temperature = <110000>; - hysteresis = <0>; + hysteresis = <1000>; type = "critical"; }; }; @@ -6148,16 +6227,29 @@ thermal-sensors = <&tsens2 7>; + cooling-maps { + map0 { + trip = <&gpu6_alert0>; + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + trips { - trip-point0 { + gpu6_alert0: trip-point0 { + temperature = <85000>; + hysteresis = <1000>; + type = "passive"; + }; + + trip-point1 { temperature = <90000>; - hysteresis = <2000>; + hysteresis = <1000>; type = "hot"; }; - gpuss6-critical { + trip-point2 { temperature = <110000>; - hysteresis = <0>; + hysteresis = <1000>; type = "critical"; }; }; @@ -6168,16 +6260,29 @@ thermal-sensors = <&tsens2 8>; + cooling-maps { + map0 { + trip = <&gpu7_alert0>; + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + trips { - trip-point0 { + gpu7_alert0: trip-point0 { + temperature = <85000>; + hysteresis = <1000>; + type = "passive"; + }; + + trip-point1 { temperature = <90000>; - hysteresis = <2000>; + hysteresis = <1000>; type = "hot"; }; - gpuss7-critical { + trip-point2 { temperature = <110000>; - hysteresis = <0>; + hysteresis = <1000>; type = "critical"; }; };