Re: [PATCH] arm64: dts: qcom: sdm845: Fix wild reboot during Antutu test

[Amit Pundir]

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
>