Re: [PATCH] arm64: dts: qcom: sc8280xp: Add ADSP FastRPC node

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 4/3/26 2:07 PM, Pengyu Luo wrote:
> Add the FastRPC node to enable offloading compute tasks to the ADSP
> via the FastRPC framework.
> 
> Signed-off-by: Pengyu Luo <mitltlatltl@gmail.com>
> ---
>  arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 27 ++++++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
> index 761f229e8f47..ee02acd18856 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
> @@ -2966,6 +2966,33 @@ IPCC_MPROC_SIGNAL_GLINK_QMP
>  				label = "lpass";
>  				qcom,remote-pid = <2>;
>  
> +				fastrpc {
> +					compatible = "qcom,fastrpc";
> +					qcom,glink-channels = "fastrpcglink-apps-dsp";
> +					label = "adsp";
> +					qcom,non-secure-domain;
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					compute-cb@3 {
> +						compatible = "qcom,fastrpc-compute-cb";
> +						reg = <3>;
> +						iommus = <&apps_smmu 0x0c03 0x0>;

These are SIDs destined for the CDSP.. (how) have you tested this
patch?

+Srini, Ekansh I can't quite decode which SIDs are "allowed" for FastRPC
on Hamoa's ADSP.. could you please help here?

Konrad