linux-kernel - Re: [PATCH v2] arm64: qcom: qcs8300: Add ADSP and CDSP0 fastrpc nodes

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Message-ID: <rzecwzfvywp7rtjtdhtyajmfquvpwwyrcyzegzxb2djuw7ml7i@uldmr35hwnjn>
Date: Mon, 18 Nov 2024 15:33:12 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Ling Xu <quic_lxu5@...cinc.com>
Cc: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org, 
	krzk+dt@...nel.org, conor+dt@...nel.org, quic_kuiw@...cinc.com, 
	quic_ekangupt@...cinc.com, kernel@...cinc.com, linux-arm-msm@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] arm64: qcom: qcs8300: Add ADSP and CDSP0 fastrpc nodes

On Mon, Nov 18, 2024 at 06:33:43PM +0530, Ling Xu wrote:
> Add ADSP and CDSP0 fastrpc nodes for QCS8300 platform.
> 
> Signed-off-by: Ling Xu <quic_lxu5@...cinc.com>
> ---
> This patch depends on patch https://lore.kernel.org/all/20240904-qcs8300_initial_dtsi-v1-0-d0ea9afdc007@quicinc.com/#t
> Changes since v1:
>  - Remove duplicate cdsp fastrpc nodes
>  - Add adsp memory-region and vmids
> ---
>  arch/arm64/boot/dts/qcom/qcs8300.dtsi | 81 +++++++++++++++++++++++++++
>  1 file changed, 81 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs8300.dtsi b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> index 2c35f96c3f28..fdfec15f606e 100644
> --- a/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qcs8300.dtsi
> @@ -5,6 +5,7 @@
>  
>  #include <dt-bindings/clock/qcom,qcs8300-gcc.h>
>  #include <dt-bindings/clock/qcom,rpmh.h>
> +#include <dt-bindings/firmware/qcom,scm.h>
>  #include <dt-bindings/interconnect/qcom,icc.h>
>  #include <dt-bindings/interconnect/qcom,qcs8300-rpmh.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
> @@ -762,6 +763,38 @@ IPCC_MPROC_SIGNAL_GLINK_QMP
>  
>  				label = "lpass";
>  				qcom,remote-pid = <2>;
> +
> +				fastrpc {
> +					compatible = "qcom,fastrpc";
> +					qcom,glink-channels = "fastrpcglink-apps-dsp";
> +					label = "adsp";
> +					memory-region = <&adsp_rpc_remote_heap_mem>;
> +					qcom,vmids = <QCOM_SCM_VMID_LPASS
> +						      QCOM_SCM_VMID_ADSP_HEAP>;
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					compute-cb@3 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <3>;
> +						iommus = <&apps_smmu 0x2003 0x0>;
> +						dma-coherent;
> +					};
> +
> +					compute-cb@4 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <4>;
> +						iommus = <&apps_smmu 0x2004 0x0>;
> +						dma-coherent;
> +					};
> +
> +					compute-cb@5 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <5>;
> +						iommus = <&apps_smmu 0x2005 0x0>;
> +						dma-coherent;
> +					};
> +				};
>  			};
>  		};
>  
> @@ -1361,6 +1394,54 @@ IPCC_MPROC_SIGNAL_GLINK_QMP
>  
>  				label = "cdsp";
>  				qcom,remote-pid = <5>;
> +
> +				fastrpc {
> +					compatible = "qcom,fastrpc";
> +					qcom,glink-channels = "fastrpcglink-apps-dsp";
> +					label = "cdsp";
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					compute-cb@1 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <1>;
> +						iommus = <&apps_smmu 0x19c1 0x0440>,
> +							 <&apps_smmu 0x1dc1 0x0440>,
> +							 <&apps_smmu 0x1961 0x0400>,
> +							 <&apps_smmu 0x1d61 0x0400>;

This still doesn't look correct:

(gdb) print/x 0x19c1 & ~0x440
$1 = 0x1981
(gdb) print/x 0x1dc1 & ~0x440
$2 = 0x1981
(gdb) print/x 0x1961 & ~0x400
$3 = 0x1961
(gdb) print/x 0x1d61 & ~0x400
$4 = 0x1961

> +						dma-coherent;
> +					};
> +
> +					compute-cb@2 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <2>;
> +						iommus = <&apps_smmu 0x19c2 0x0440>,
> +							 <&apps_smmu 0x1dc2 0x0440>,
> +							 <&apps_smmu 0x1962 0x0400>,
> +							 <&apps_smmu 0x1d62 0x0400>;
> +						dma-coherent;
> +					};
> +
> +					compute-cb@3 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <3>;
> +						iommus = <&apps_smmu 0x19c3 0x0440>,
> +							 <&apps_smmu 0x1dc3 0x0440>,
> +							 <&apps_smmu 0x1963 0x0400>,
> +							 <&apps_smmu 0x1d63 0x0400>;
> +						dma-coherent;
> +					};
> +
> +					compute-cb@4 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <4>;
> +						iommus = <&apps_smmu 0x19c4 0x0440>,
> +							 <&apps_smmu 0x1dc4 0x0440>,
> +							 <&apps_smmu 0x1964 0x0400>,
> +							 <&apps_smmu 0x1d64 0x0400>;
> +						dma-coherent;
> +					};
> +				};
>  			};
>  		};
>  	};
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry