linux-kernel - Re: [PATCH v1] arm64: dts: qcom: sc7280: Make ADSP a secure fastrpc domain

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Message-ID: <5oqzxppquoeppt6xnjfm2rdwm23hbui5k3caz5v5ffqzizepob@dz5ikvzgbd4x>
Date: Wed, 13 Nov 2024 07:43:20 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Ekansh Gupta <quic_ekangupt@...cinc.com>
Cc: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org, 
	krzk+dt@...nel.org, conor+dt@...nel.org, cros-qcom-dts-watchers@...omium.org, 
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	srinivas.kandagatla@...aro.org, quic_bkumar@...cinc.com, quic_chennak@...cinc.com
Subject: Re: [PATCH v1] arm64: dts: qcom: sc7280: Make ADSP a secure fastrpc
 domain

On Wed, Nov 13, 2024 at 10:30:42AM +0530, Ekansh Gupta wrote:
> FastRPC framework treats ADSP as a secure domain on sc7280 SoC
> which means that only secure fastrpc device node should be
> created for ADSP remoteproc. Remove the non-secure-domain
> property from ADSP fastrpc node.

If this prevents the non-secure devices from being created, isn't that a
regression from the userspace point of view?

> 
> Signed-off-by: Ekansh Gupta <quic_ekangupt@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sc7280.dtsi | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index 3d8410683402..c633926c0f33 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> @@ -3852,7 +3852,6 @@ fastrpc {
>  					compatible = "qcom,fastrpc";
>  					qcom,glink-channels = "fastrpcglink-apps-dsp";
>  					label = "adsp";
> -					qcom,non-secure-domain;
>  					#address-cells = <1>;
>  					#size-cells = <0>;
>  
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry