linux-kernel - Re: [PATCH v10 2/5] arm64: dts: qcom: lemans: add GDSP fastrpc-compute-cb nodes

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Message-ID: <a0420827-cdd3-4442-83aa-d7f5072a28d4@oss.qualcomm.com>
Date: Wed, 13 Aug 2025 09:08:55 +0530
From: Ekansh Gupta <ekansh.gupta@....qualcomm.com>
To: Ling Xu <quic_lxu5@...cinc.com>, srini@...nel.org,
        amahesh@....qualcomm.com, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, andersson@...nel.org, konradybcio@...nel.org,
        arnd@...db.de, gregkh@...uxfoundation.org
Cc: quic_kuiw@...cinc.com, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: Re: [PATCH v10 2/5] arm64: dts: qcom: lemans: add GDSP
 fastrpc-compute-cb nodes



On 8/13/2025 8:36 AM, Ling Xu wrote:
> Add GDSP0 and GDSP1 fastrpc compute-cb nodes for lemans SoC.
>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
> Signed-off-by: Ling Xu <quic_lxu5@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/lemans.dtsi | 58 ++++++++++++++++++++++++++++
>  1 file changed, 58 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/lemans.dtsi b/arch/arm64/boot/dts/qcom/lemans.dtsi
> index 322abd0294be..a4c79194cee9 100644
> --- a/arch/arm64/boot/dts/qcom/lemans.dtsi
> +++ b/arch/arm64/boot/dts/qcom/lemans.dtsi
> @@ -6092,6 +6092,35 @@ IPCC_MPROC_SIGNAL_GLINK_QMP
>  
>  				label = "gpdsp0";
>  				qcom,remote-pid = <17>;
> +
> +				fastrpc {
> +					compatible = "qcom,fastrpc";
> +					qcom,glink-channels = "fastrpcglink-apps-dsp";
> +					label = "gdsp0";
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					compute-cb@1 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <1>;
> +						iommus = <&apps_smmu 0x38a1 0x0>;
> +						dma-coherent;
> +					};
> +
> +					compute-cb@2 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <2>;
> +						iommus = <&apps_smmu 0x38a2 0x0>;
> +						dma-coherent;
> +					};
> +
> +					compute-cb@3 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <3>;
> +						iommus = <&apps_smmu 0x38a3 0x0>;
> +						dma-coherent;
> +					};
> +				};
>  			};
>  		};
>  
> @@ -6135,6 +6164,35 @@ IPCC_MPROC_SIGNAL_GLINK_QMP
>  
>  				label = "gpdsp1";
>  				qcom,remote-pid = <18>;
> +
> +				fastrpc {
> +					compatible = "qcom,fastrpc";
> +					qcom,glink-channels = "fastrpcglink-apps-dsp";
> +					label = "gdsp1";
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					compute-cb@1 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <1>;
> +						iommus = <&apps_smmu 0x38c1 0x0>;
> +						dma-coherent;
> +					};
> +
> +					compute-cb@2 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <2>;
> +						iommus = <&apps_smmu 0x38c2 0x0>;
> +						dma-coherent;
> +					};
> +
> +					compute-cb@3 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <3>;
> +						iommus = <&apps_smmu 0x38c3 0x0>;
> +						dma-coherent;
> +					};
> +				};
>  			};
>  		};

Reviewed-by: Ekansh Gupta <ekansh.gupta@....qualcomm.com>

>