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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <c8e36d23-3325-4ad8-91da-94f9f31c3c15@oss.qualcomm.com>
Date: Wed, 23 Apr 2025 11:29:37 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Lijuan Gao <quic_lijuang@...cinc.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

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

> +		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