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References: <20190411105720.32357-1-peron.clem@gmail.com> <20190411123223.zyumngnlwhlvk6mf@flea>
 <2219012.spPdo1bsEq@jernej-laptop>
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From:   =?UTF-8?B?Q2zDqW1lbnQgUMOpcm9u?= <peron.clem@gmail.com>
Date:   Thu, 11 Apr 2019 17:09:20 +0200
Message-ID: <CAJiuCcejA16mKVHeKEf-YmzNsS-w=mjrzbG4hR3DoepiZr_J8Q@mail.gmail.com>
Subject: Re: [PATCH v2 0/8] Add Allwinner H6 Mali Midgard GPU
To:     =?UTF-8?Q?Jernej_=C5=A0krabec?= <jernej.skrabec@siol.net>
Cc:     Maxime Ripard <maxime.ripard@bootlin.com>,
        =?UTF-8?B?Q2zDqW1lbnQgUMOpcm9u?= <peron.clem@gmail.com>,
        Rob Herring <robh+dt@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
        Icenowy Zheng <icenowy@aosc.io>,
        Jagan Teki <jagan@amarulasolutions.com>,
        devicetree <devicetree@vger.kernel.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
        dri-devel@lists.freedesktop.org, linux-sunxi@googlegroups.com
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Sender: linux-kernel-owner@vger.kernel.org
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Hi,

On Thu, 11 Apr 2019 at 17:01, Jernej =C5=A0krabec <jernej.skrabec@siol.net>=
 wrote:
>
> Hi!
>
> Dne =C4=8Detrtek, 11. april 2019 ob 14:32:23 CEST je Maxime Ripard napisa=
l(a):
> > On Thu, Apr 11, 2019 at 12:57:12PM +0200, Cl=C3=A9ment P=C3=A9ron wrote=
:
> > > Hi,
> > >
> > > The Allwinner H6 has a Mali-T720 MP2. The drivers are
> > > out-of-tree so this series only introduce the dt-bindings.
> > >
> > > The first patch is from Neil Amstrong and has been already
> > > merged in linux-amlogic. It is required for this series.
> > >
> > > The second patch is from Icenowy Zheng where I changed the
> > > order has required by Rob Herring.
> > > See: https://patchwork.kernel.org/patch/10699829/
> > >
> > > The GPU opp table was taken from Jernej =C5=A0krabec's patch
> > > on LibreELEC.tv.
> >
> > One valuable information here would be which stack did you use,
> > panfrost and mesa or the ARM stack? If so, with which driver and which
> > blob?
All of this work has be done by Jernej so he could answer better than me.

He uses the ARM stack r22p0-01rel0 + patches
https://github.com/LibreELEC/LibreELEC.tv/commit/5273f889964c42e88fe0228929=
0c3c6cb6086770

Blob are also from Jernej too (taken from ???) :
https://github.com/jernejsk/H6-mali-userspace

Regards,
Clement

>
> I'm using similar binding (different clock and interrupt names, but other=
wise
> same) for quiet some time now on LibreELEC with ARM proprietary userspace=
 and
> kernel space driver (32-bit GBM version) and it works well.
>
> It's true that I'm using OPP table, but most (if not all) of the time GPU=
 is
> set to lowest setting as there is not much to do when rendering GUI.
>
> Best regards,
> Jernej
>
>