linux-kernel - Re: [PATCH v3 04/12] dt-bindings: misc: add property to support non-secure DSP

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Message-ID: <YgGEs1iigfMvxtT8@robh.at.kernel.org>
Date:   Mon, 7 Feb 2022 14:44:35 -0600
From:   Rob Herring <robh@...nel.org>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc:     srini@...nel.org, linux-kernel@...r.kernel.org,
        ekangupt@....qualcomm.com, Jeya R <jeyr@...eaurora.org>,
        bjorn.andersson@...aro.org, bkumar@....qualcomm.com,
        robh+dt@...nel.org, gregkh@...uxfoundation.org,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v3 04/12] dt-bindings: misc: add property to support
 non-secure DSP

On Wed, 26 Jan 2022 13:52:56 +0000, Srinivas Kandagatla wrote:
> From: Jeya R <jeyr@...eaurora.org>
> 
> Add property to set DSP domain as non-secure.
> 
> ADSP/MDSP/SDSP are by default secured, where as CDSP can be either be
> secured/unsecured.
> non-secured Compute DSP would allow users to load unsigned process
> and run hexagon instructions, but limiting access to secured hardware
> within the DSP.
> 
> Based on this flag device nodes for secured and unsecured are created.
> 
> Signed-off-by: Jeya R <jeyr@...eaurora.org>
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> ---
>  Documentation/devicetree/bindings/misc/qcom,fastrpc.txt | 5 +++++
>  1 file changed, 5 insertions(+)
> 

Acked-by: Rob Herring <robh@...nel.org>