linux-kernel - Re: [PATCH 3/6] arm64: dts: qcom: qcs615: Add mproc node for SEMP2P

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Message-ID: <58ea4571-da8e-4c95-9f3b-2fb620b93955@quicinc.com>
Date: Wed, 7 May 2025 14:24:41 +0800
From: Lijuan Gao <quic_lijuang@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Bjorn Andersson
	<andersson@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        "Rob
 Herring" <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        "Conor
 Dooley" <conor+dt@...nel.org>,
        Manivannan Sadhasivam
	<manivannan.sadhasivam@...aro.org>,
        Konrad Dybcio <konradybcio@...nel.org>
CC: <kernel@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <linux-remoteproc@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Kyle Deng <quic_chunkaid@...cinc.com>
Subject: Re: [PATCH 3/6] arm64: dts: qcom: qcs615: Add mproc node for SEMP2P



在 4/23/2025 5:29 PM, Konrad Dybcio 写道:
> On 4/23/25 11:17 AM, Lijuan Gao wrote:
>> From: Kyle Deng <quic_chunkaid@...cinc.com>
>>
>> The Shared Memory Point to Point (SMP2P) protocol facilitates
>> communication of a single 32-bit value between two processors.
>> Add these two nodes for remoteproc enablement on QCS615 SoC.
>>
>> Signed-off-by: Kyle Deng <quic_chunkaid@...cinc.com>
>> Signed-off-by: Lijuan Gao <quic_lijuang@...cinc.com>
>> ---
>>   arch/arm64/boot/dts/qcom/qcs615.dtsi | 79 ++++++++++++++++++++++++++++++++++++
>>   1 file changed, 79 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/qcs615.dtsi b/arch/arm64/boot/dts/qcom/qcs615.dtsi
>> index edfb796d8dd3..ab3c6ba5842b 100644
>> --- a/arch/arm64/boot/dts/qcom/qcs615.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/qcs615.dtsi
>> @@ -332,6 +332,80 @@ mc_virt: interconnect-2 {
>>   		qcom,bcm-voters = <&apps_bcm_voter>;
>>   	};
>>   
>> +	qcom,smp2p-adsp {
> 
> Remove the qcom prefix

Understood, it will be updated in the next patch.
> 
>> +		compatible = "qcom,smp2p";
>> +		qcom,smem = <443>, <429>;
>> +		interrupts = <GIC_SPI 172 IRQ_TYPE_EDGE_RISING>;
>> +		mboxes = <&apss_shared 26>;
>> +		qcom,ipc = <&apcs 0 26>;
>> +		qcom,local-pid = <0>;
>> +		qcom,remote-pid = <2>;
>> +
>> +		adsp_smp2p_out: master-kernel {
>> +			qcom,entry-name = "master-kernel";
>> +			#qcom,smem-state-cells = <1>;
>> +		};
>> +
>> +		adsp_smp2p_in: slave-kernel {
>> +			qcom,entry-name = "slave-kernel";
>> +			interrupt-controller;
>> +			#interrupt-cells = <2>;
>> +		};
>> +
>> +		sleepstate_smp2p_out: sleepstate-out {
>> +			qcom,entry-name = "sleepstate";
>> +			#qcom,smem-state-cells = <1>;
>> +		};
>> +
>> +		sleepstate_smp2p_in: qcom,sleepstate-in {
>> +			qcom,entry-name = "sleepstate_see";
>> +			interrupt-controller;
>> +			#interrupt-cells = <2>;
>> +		};
>> +		smp2p_rdbg2_out: qcom,smp2p-rdbg2-out {
>> +			qcom,entry-name = "rdbg";
>> +			#qcom,smem-state-cells = <1>;
>> +		};
>> +
>> +		smp2p_rdbg2_in: qcom,smp2p-rdbg2-in {
>> +			qcom,entry-name = "rdbg";
>> +			interrupt-controller;
>> +			#interrupt-cells = <2>;
>> +		};
>> +	};
>> +
>> +	qcom,smp2p-cdsp {
>> +		compatible = "qcom,smp2p";
>> +		qcom,smem = <94>, <432>;
>> +		interrupts = <GIC_SPI 576 IRQ_TYPE_EDGE_RISING>;
>> +		mboxes = <&apss_shared 6>;
>> +		qcom,ipc = <&apcs 0 6>;
>> +		qcom,local-pid = <0>;
>> +		qcom,remote-pid = <5>;
>> +
>> +		cdsp_smp2p_out: master-kernel {
>> +			qcom,entry-name = "master-kernel";
>> +			#qcom,smem-state-cells = <1>;
>> +		};
>> +
>> +		cdsp_smp2p_in: slave-kernel {
>> +			qcom,entry-name = "slave-kernel";
>> +			interrupt-controller;
>> +			#interrupt-cells = <2>;
>> +		};
>> +
>> +		smp2p_rdbg5_out: qcom,smp2p-rdbg5-out {
>> +			qcom,entry-name = "rdbg";
>> +			#qcom,smem-state-cells = <1>;
>> +		};
>> +
>> +		smp2p_rdbg5_in: qcom,smp2p-rdbg5-in {
>> +			qcom,entry-name = "rdbg";
>> +			interrupt-controller;
>> +			#interrupt-cells = <2>;
>> +		};
>> +	};
>> +
>>   	qup_opp_table: opp-table-qup {
>>   		compatible = "operating-points-v2";
>>   		opp-shared;
>> @@ -3337,6 +3411,11 @@ apss_shared: mailbox@...00000 {
>>   			#mbox-cells = <1>;
>>   		};
>>   
>> +		apcs: syscon@...0000c {
>> +			compatible = "syscon";
> 
> There is already a description for this block above what you added
> 
> qcom,ipc under smp2p is mutually exclusive with `mboxes`, so adding
> the above isn't necessary at all
> 
> Konrad

Understood, I will remove the qcom,ipc in next patch.

-- 
Thx and BRs
Lijuan Gao