6.12-stable review patch. If anyone has any objections, please let me know.
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From: Neil Armstrong neil.armstrong@linaro.org
[ Upstream commit 2250f65b32565eb8b757e89248c75977f370f498 ]
On the SM8650, the dynamic clock and voltage scaling (DCVS) for the GPU is done from the HLOS, but the GPU can achieve a much higher temperature before failing according the reference downstream implementation.
Set higher temperatures in the GPU trip points corresponding to the temperatures provided by Qualcomm in the dowstream source, much closer to the junction temperature and with a higher critical temperature trip in the case the HLOS DCVS cannot handle the temperature surge.
The tsens MAX_THRESHOLD is set to 120C on those platforms, so set the hot to 110C to leave a chance to HLOS to react and critical to 115C to avoid the monitor thermal shutdown.
Fixes: 497624ed5506 ("arm64: dts: qcom: sm8650: Throttle the GPU when overheating") Signed-off-by: Neil Armstrong neil.armstrong@linaro.org Reviewed-by: Konrad Dybcio konrad.dybcio@oss.qualcomm.com Link: https://lore.kernel.org/r/20250203-topic-sm8650-thermal-cpu-idle-v4-2-65e35f... Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/qcom/sm8650.dtsi | 64 ++++++++++++++-------------- 1 file changed, 32 insertions(+), 32 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi index fddf979de38d1..0c54a89bb3322 100644 --- a/arch/arm64/boot/dts/qcom/sm8650.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi @@ -6354,20 +6354,20 @@
trips { gpu0_alert0: trip-point0 { - temperature = <85000>; + temperature = <95000>; hysteresis = <1000>; type = "passive"; };
trip-point1 { - temperature = <90000>; + temperature = <110000>; hysteresis = <1000>; type = "hot"; };
trip-point2 { - temperature = <110000>; - hysteresis = <1000>; + temperature = <115000>; + hysteresis = <0>; type = "critical"; }; }; @@ -6387,20 +6387,20 @@
trips { gpu1_alert0: trip-point0 { - temperature = <85000>; + temperature = <95000>; hysteresis = <1000>; type = "passive"; };
trip-point1 { - temperature = <90000>; + temperature = <110000>; hysteresis = <1000>; type = "hot"; };
trip-point2 { - temperature = <110000>; - hysteresis = <1000>; + temperature = <115000>; + hysteresis = <0>; type = "critical"; }; }; @@ -6420,20 +6420,20 @@
trips { gpu2_alert0: trip-point0 { - temperature = <85000>; + temperature = <95000>; hysteresis = <1000>; type = "passive"; };
trip-point1 { - temperature = <90000>; + temperature = <110000>; hysteresis = <1000>; type = "hot"; };
trip-point2 { - temperature = <110000>; - hysteresis = <1000>; + temperature = <115000>; + hysteresis = <0>; type = "critical"; }; }; @@ -6453,20 +6453,20 @@
trips { gpu3_alert0: trip-point0 { - temperature = <85000>; + temperature = <95000>; hysteresis = <1000>; type = "passive"; };
trip-point1 { - temperature = <90000>; + temperature = <110000>; hysteresis = <1000>; type = "hot"; };
trip-point2 { - temperature = <110000>; - hysteresis = <1000>; + temperature = <115000>; + hysteresis = <0>; type = "critical"; }; }; @@ -6486,20 +6486,20 @@
trips { gpu4_alert0: trip-point0 { - temperature = <85000>; + temperature = <95000>; hysteresis = <1000>; type = "passive"; };
trip-point1 { - temperature = <90000>; + temperature = <110000>; hysteresis = <1000>; type = "hot"; };
trip-point2 { - temperature = <110000>; - hysteresis = <1000>; + temperature = <115000>; + hysteresis = <0>; type = "critical"; }; }; @@ -6519,20 +6519,20 @@
trips { gpu5_alert0: trip-point0 { - temperature = <85000>; + temperature = <95000>; hysteresis = <1000>; type = "passive"; };
trip-point1 { - temperature = <90000>; + temperature = <110000>; hysteresis = <1000>; type = "hot"; };
trip-point2 { - temperature = <110000>; - hysteresis = <1000>; + temperature = <115000>; + hysteresis = <0>; type = "critical"; }; }; @@ -6552,20 +6552,20 @@
trips { gpu6_alert0: trip-point0 { - temperature = <85000>; + temperature = <95000>; hysteresis = <1000>; type = "passive"; };
trip-point1 { - temperature = <90000>; + temperature = <110000>; hysteresis = <1000>; type = "hot"; };
trip-point2 { - temperature = <110000>; - hysteresis = <1000>; + temperature = <115000>; + hysteresis = <0>; type = "critical"; }; }; @@ -6585,20 +6585,20 @@
trips { gpu7_alert0: trip-point0 { - temperature = <85000>; + temperature = <95000>; hysteresis = <1000>; type = "passive"; };
trip-point1 { - temperature = <90000>; + temperature = <110000>; hysteresis = <1000>; type = "hot"; };
trip-point2 { - temperature = <110000>; - hysteresis = <1000>; + temperature = <115000>; + hysteresis = <0>; type = "critical"; }; };