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SubjectRe: [PATCH v3 3/3] arm64: dts: qcom: sc8280xp: Enable GPU related nodes
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On 31.05.2023 05:09, Bjorn Andersson wrote:
> From: Bjorn Andersson <bjorn.andersson@linaro.org>
>
> Add memory reservation for the zap-shader and enable the Adreno SMMU,
> GPU clock controller, GMU and the GPU nodes for the SC8280XP CRD and the
> Lenovo ThinkPad X13s.
>
> Tested-by: Steev Klimaszewski <steev@kali.org>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
> ---
>
> Changes since v2:
> - None
>
> Changes since v1:
> - None
>
> arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 26 +++++++++++++++++++
> .../qcom/sc8280xp-lenovo-thinkpad-x13s.dts | 26 +++++++++++++++++++
> 2 files changed, 52 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> index cd7e0097d8bc..58b1d920ea9c 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> @@ -210,6 +210,11 @@ vreg_wwan: regulator-wwan {
> };
>
> reserved-memory {
> + gpu_mem: gpu-mem@8bf00000 {
> + reg = <0 0x8bf00000 0 0x2000>;
> + no-map;
> + };
> +
> linux,cma {
> compatible = "shared-dma-pool";
> size = <0x0 0x8000000>;
> @@ -259,6 +264,10 @@ usb1_sbu_mux: endpoint {
> };
> };
>
> +&adreno_smmu {
> + status = "okay";
> +};
> +
> &apps_rsc {
> regulators-0 {
> compatible = "qcom,pm8350-rpmh-regulators";
> @@ -390,6 +399,23 @@ &dispcc0 {
> status = "okay";
> };
>
> +&gmu {
> + status = "okay";
> +};
As I pointed out in v2:

You can keep the GMU enabled by default as well, it won't "probe" on
its own (the GPU's hw_init calls its registration)

same for the other dt

Konrad
> +
> +&gpu {
> + status = "okay";
> +
> + zap-shader {
> + memory-region = <&gpu_mem>;
> + firmware-name = "qcom/sc8280xp/qcdxkmsuc8280.mbn";
> + };
> +};
> +
> +&gpucc {
> + status = "okay";
> +};
> +
> &mdss0 {
> status = "okay";
> };
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> index 5ae057ad6438..382f27946468 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> @@ -264,6 +264,11 @@ vreg_wwan: regulator-wwan {
> };
>
> reserved-memory {
> + gpu_mem: gpu-mem@8bf00000 {
> + reg = <0 0x8bf00000 0 0x2000>;
> + no-map;
> + };
> +
> linux,cma {
> compatible = "shared-dma-pool";
> size = <0x0 0x8000000>;
> @@ -359,6 +364,10 @@ usb1_sbu_mux: endpoint {
> };
> };
>
> +&adreno_smmu {
> + status = "okay";
> +};
> +
> &apps_rsc {
> regulators-0 {
> compatible = "qcom,pm8350-rpmh-regulators";
> @@ -518,6 +527,23 @@ &dispcc0 {
> status = "okay";
> };
>
> +&gmu {
> + status = "okay";
> +};
> +
> +&gpu {
> + status = "okay";
> +
> + zap-shader {
> + memory-region = <&gpu_mem>;
> + firmware-name = "qcom/sc8280xp/LENOVO/21BX/qcdxkmsuc8280.mbn";
> + };
> +};
> +
> +&gpucc {
> + status = "okay";
> +};
> +
> &mdss0 {
> status = "okay";
> };

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