linux-kernel - Re: [RFC PATCH 4/4] arm64: dts: imx8mm: Add GPU nodes for 2D and 3D core using Etnaviv

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Date:   Sun, 3 May 2020 09:49:50 -0500
From:   Adam Ford <aford173@...il.com>
To:     Schrempf Frieder <frieder.schrempf@...tron.de>
Cc:     Anson Huang <Anson.Huang@....com>,
        Christian Gmeiner <christian.gmeiner@...il.com>,
        Daniel Baluta <daniel.baluta@....com>,
        Fabio Estevam <festevam@...il.com>,
        Leonard Crestez <leonard.crestez@....com>,
        Li Jun <jun.li@....com>, Lucas Stach <l.stach@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        Peng Fan <peng.fan@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Russell King <linux+etnaviv@...linux.org.uk>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>,
        "S.j. Wang" <shengjiu.wang@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "etnaviv@...ts.freedesktop.org" <etnaviv@...ts.freedesktop.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 4/4] arm64: dts: imx8mm: Add GPU nodes for 2D and 3D
 core using Etnaviv

On Thu, Apr 30, 2020 at 7:46 AM Schrempf Frieder
<frieder.schrempf@...tron.de> wrote:
>
> From: Frieder Schrempf <frieder.schrempf@...tron.de>
>
> According to the documents, the i.MX8M-Mini features a GC320 and a
> GCNanoUltra GPU core. Etnaviv detects them as:
>
>         etnaviv-gpu 38000000.gpu: model: GC600, revision: 4653
>         etnaviv-gpu 38008000.gpu: model: GC520, revision: 5341
>
> This seems to work fine more or less without any changes to the HWDB,
> which still might be needed in the future to correct some features,
> etc.
>
> Signed-off-by: Frieder Schrempf <frieder.schrempf@...tron.de>
> ---
Since not everyone uses the 3D or 2D, would it make sense to mark them
as disabled by default and let people who need the 3D and 2D enable
them at their respective board files?

adam

> 2.17.1