linux-kernel - Re: [PATCH v4 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

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Message-ID: <5883038.MhkbZ0Pkbq@steina-w>
Date:   Tue, 24 Oct 2023 07:37:47 +0200
From:   Alexander Stein <alexander.stein@...tq-group.com>
To:     "Iuliana Prodan (OSS)" <iuliana.prodan@....nxp.com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:     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-imx <linux-imx@....com>, linux-remoteproc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        LnxRevLi <LnxRevLi@....com>
Subject: Re: [PATCH v4 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

Hi Mathieu,

Am Montag, 23. Oktober 2023, 19:24:28 CEST schrieb Mathieu Poirier:
> Hey guys,
> 
> On Fri, Oct 13, 2023 at 06:27:31PM +0300, Iuliana Prodan (OSS) wrote:
> > From: Iuliana Prodan <iuliana.prodan@....com>
> > 
> > Add the reserve-memory nodes used by DSP when the rpmsg
> > feature is enabled.
> > 
> > Signed-off-by: Iuliana Prodan <iuliana.prodan@....com>
> > ---
> > 
> >  arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 22 ++++++++++++++++++++
> >  1 file changed, 22 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> > b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts index
> > fa37ce89f8d3..b677ad8ef042 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> > +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> > @@ -125,6 +125,28 @@
> > 
> >  		};
> >  	
> >  	};
> > 
> > +
> > +	reserved-memory {
> > +		#address-cells = <2>;
> > +		#size-cells = <2>;
> > +		ranges;
> > +
> > +		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;
> > +		};
> > +	};
> 
> Alexander: Are you good with the refactoring?

Yes, adding this to EVK is good for me.
Acked-by: Alexander Stein <alexander.stein@...tq-group.com>

> Rob and Krzysztof: I'm not sure if you want to ack this patch but giving you
> the benefit of the doubt.
> 
> Shawn and Sascha: Did you plan on picking up this patch or shoud I?
> 
> Thanks,
> Mathieu
> 
> >  };
> >  
> >  &flexspi {


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