On Tue, 16 Jan 2024 at 17:29, Daniel Lezcano <daniel.lezcano@xxxxxxxxxx> wrote:
>
> Running an Antutu benchmark makes the board to do a hard reboot.
>
> Cause: it appears the gpu-bottom and gpu-top temperature sensors are showing
> too high temperatures, above 115°C.
>
> Out of tree configuratons show the gpu thermal zone is configured to
> be mitigated at 85°C with devfreq.
>
> Add the DT snippet to enable the thermal mitigation on the sdm845
> based board.
Smoke tested on Dragonboard 845c running AOSP with a custom/generic thermal HAL.
Tested-by: Amit Pundir <amit.pundir@xxxxxxxxxx>
PS: Probably good to mention the OS (AOSP) and board (DB845c), on
which the Antutu crash was reported, in the commit message as well .
>
> Fixes: c79800103eb18 ("arm64: dts: sdm845: Add gpu and gmu device nodes")
> Cc: Amit Pundir <amit.pundir@xxxxxxxxxx>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
> ---
> arch/arm64/boot/dts/qcom/sdm845.dtsi | 32 ++++++++++++++++++++++++++--
> 1 file changed, 30 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> index c2244824355a..20fefd6af0f8 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> @@ -4764,6 +4764,8 @@ gpu: gpu@5000000 {
> interconnects = <&mem_noc MASTER_GFX3D 0 &mem_noc SLAVE_EBI1 0>;
> interconnect-names = "gfx-mem";
>
> + #cooling-cells = <2>;
> +
> status = "disabled";
>
> gpu_opp_table: opp-table {
> @@ -5603,12 +5605,25 @@ gpu-top-thermal {
> thermal-sensors = <&tsens0 11>;
>
> trips {
> - gpu1_alert0: trip-point0 {
> + gpu1_alert0: trip-point0 {
> + temperature = <85000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> +
> + gpu1_alert1: trip-point1 {
> temperature = <90000>;
> hysteresis = <2000>;
> type = "hot";
> };
> };
> +
> + cooling-maps {
> + map0 {
> + trip = <&gpu1_alert0>;
> + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> + };
> + };
> };
>
> gpu-bottom-thermal {
> @@ -5618,12 +5633,25 @@ gpu-bottom-thermal {
> thermal-sensors = <&tsens0 12>;
>
> trips {
> - gpu2_alert0: trip-point0 {
> + gpu2_alert0: trip-point0 {
> + temperature = <85000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> +
> + gpu2_alert1: trip-point1 {
> temperature = <90000>;
> hysteresis = <2000>;
> type = "hot";
> };
> };
> +
> + cooling-maps {
> + map0 {
> + trip = <&gpu2_alert0>;
> + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> + };
> + };
> };
>
> aoss1-thermal {
> --
> 2.34.1
>
