linux-kernel - Re: [PATCH 4/6] arm64: dts: qcom: qcs615: add the GPU SMMU node

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Message-ID: <c58dd9d3-2689-4a73-a854-04cff5b44216@oss.qualcomm.com>
Date: Mon, 3 Nov 2025 12:54:50 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Akhil P Oommen <akhilpo@....qualcomm.com>,
        Rob Clark <robin.clark@....qualcomm.com>, Sean Paul <sean@...rly.run>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jessica.zhang@....qualcomm.com>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Qingqing Zhou <quic_qqzhou@...cinc.com>,
        Jie Zhang <quic_jiezh@...cinc.com>
Subject: Re: [PATCH 4/6] arm64: dts: qcom: qcs615: add the GPU SMMU node

On 10/17/25 7:08 PM, Akhil P Oommen wrote:
> From: Qingqing Zhou <quic_qqzhou@...cinc.com>
> 
> Add the Adreno GPU SMMU node for QCS615 platform.
> 
> Signed-off-by: Qingqing Zhou <quic_qqzhou@...cinc.com>
> Signed-off-by: Jie Zhang <quic_jiezh@...cinc.com>
> Signed-off-by: Akhil P Oommen <akhilpo@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/sm6150.dtsi | 27 +++++++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm6150.dtsi b/arch/arm64/boot/dts/qcom/sm6150.dtsi
> index 3d2a1cb02b628a5db7ca14bea784429be5a020f9..e62b062c543657b6fd8f9aba7ad595855d8134d6 100644
> --- a/arch/arm64/boot/dts/qcom/sm6150.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm6150.dtsi
> @@ -1700,6 +1700,33 @@ gpucc: clock-controller@...0000 {
>  			#power-domain-cells = <1>;
>  		};
>  
> +		adreno_smmu: iommu@...0000 {
> +			compatible = "qcom,qcs615-smmu-500", "qcom,adreno-smmu",
> +				     "qcom,smmu-500", "arm,mmu-500";
> +			reg = <0x0 0x50a0000 0x0 0x10000>;

sz = 0x40000> +			#iommu-cells = <2>;
> +			#global-interrupts = <1>;
> +			dma-coherent;

please adjust the property order to match x1e80100/hamoa.dtsi

the values look OK

Konrad