linux-kernel - Re: [PATCH v9 1/6] drm/fourcc: Add modifier definitions for describing Amlogic Video Framebuffer Compression

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Message-ID: <2f948215-3a90-d0fa-061f-20690b20c441@baylibre.com>
Date:   Mon, 6 Jul 2020 10:51:59 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Simon Ser <contact@...rsion.fr>
Cc:     "daniel@...ll.ch" <daniel@...ll.ch>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "jianxin.pan@...ogic.com" <jianxin.pan@...ogic.com>,
        Kevin Hilman <khilman@...libre.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        "linux-amlogic@...ts.infradead.org" 
        <linux-amlogic@...ts.infradead.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v9 1/6] drm/fourcc: Add modifier definitions for
 describing Amlogic Video Framebuffer Compression

Hi,

On 03/07/2020 11:08, Simon Ser wrote:
> Thanks for the update!
> 
> The driver should also disallow importing a AMLOGIC_FBC_LAYOUT_SCATTER
> DMA-BUF from another device, but I guess this is clear enough ("not
> transferrable between Amlogic SoCs").

Good idea, I'll experiment disabling import of DRM allocated DUMB buffers,
but not sure I can disable import of other allocaters like ION.

Neil

> 
> From a user-space PoV:
> 
> Acked-by: Simon Ser <contact@...rsion.fr>
>