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

[Konrad Dybcio]

On 4/7/26 1:22 PM, Konrad Dybcio wrote:
> 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@xxxxxxxxx>
>> ---
>>  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?

As I hit enter, I noticed this is indeed not hamoa and these numbers
were just coincidental..

The patch is alright

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>

Konrad