linux-kernel - Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20230912113056.iyckw2j4sbg2brwr@pengutronix.de>
Date:   Tue, 12 Sep 2023 13:30:56 +0200
From:   Marco Felsch <m.felsch@...gutronix.de>
To:     "Iuliana Prodan (OSS)" <iuliana.prodan@....nxp.com>
Cc:     Mathieu Poirier <mathieu.poirier@...aro.org>, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        Shawn Guo <shawnguo@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        "S.J. Wang" <shengjiu.wang@....com>,
        Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
        Daniel Baluta <daniel.baluta@....com>,
        Mpuaudiosw <Mpuaudiosw@....com>,
        Iuliana Prodan <iuliana.prodan@....com>,
        linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org,
        LnxRevLi <LnxRevLi@....com>, linux-imx <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

Hi Iuliana,

On 23-09-12, Iuliana Prodan (OSS) wrote:
> From: Iuliana Prodan <iuliana.prodan@....com>
> 
> Add the reserve-memory nodes used by DSP when the rpmsg
> feature is enabled.
> These can be later used in a dsp node, like:
> dsp: dsp@...e8000 {
> 	compatible = "fsl,imx8mp-dsp";
> 	reg = <0x3b6e8000 0x88000>;
> 	mbox-names = "tx0", "rx0", "rxdb0";
> 	mboxes = <&mu2 2 0>, <&mu2 2 1>,
> 		<&mu2 3 0>, <&mu2 3 1>;
> 	memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
> 		<&dsp_vdev0vring1>, <&dsp_reserved>;
> 	status = "okay";
> };
> 
> Signed-off-by: Iuliana Prodan <iuliana.prodan@....com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> index cc406bb338fe..eedc1921af62 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -210,6 +210,18 @@
>  		dsp_reserved: dsp@...00000 {
>  			reg = <0 0x92400000 0 0x2000000>;
>  			no-map;

This seems broken.

Regards,
  Marco

> +		dsp_vdev0vring0: vdev0vring0@...f0000 {
> +			reg = <0 0x942f0000 0 0x8000>;
> +			no-map;
> +		};
> +		dsp_vdev0vring1: vdev0vring1@...f8000 {
> +			reg = <0 0x942f8000 0 0x8000>;
> +			no-map;
> +		};
> +		dsp_vdev0buffer: vdev0buffer@...00000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0 0x94300000 0 0x100000>;
> +			no-map;
>  		};
>  	};
>  
> -- 
> 2.17.1
> 
> 
>