linux-kernel - Re: [PATCH v6 08/16] drm/rockchip: vop2: Support 32x8 superblock afbc

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Message-ID: <CAPj87rOjqZdyht2y8MK7gVyk_eqEzk1Sy0DcxFtQRuhrHQ_oxA@mail.gmail.com>
Date: Mon, 16 Dec 2024 13:06:07 +0000
From: Daniel Stone <daniel@...ishbar.org>
To: Andy Yan <andyshrk@....com>
Cc: heiko@...ech.de, hjc@...k-chips.com, krzk+dt@...nel.org, 
	s.hauer@...gutronix.de, devicetree@...r.kernel.org, 
	dri-devel@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org, 
	derek.foreman@...labora.com, detlev.casanova@...labora.com, 
	Andy Yan <andy.yan@...k-chips.com>, Michael Riesch <michael.riesch@...fvision.net>
Subject: Re: [PATCH v6 08/16] drm/rockchip: vop2: Support 32x8 superblock afbc

Hi Andy,

On Sat, 14 Dec 2024 at 08:18, Andy Yan <andyshrk@....com> wrote:
> This is the only afbc format supported by the upcoming
> VOP for rk3576.
>
> Add support for it.

Out of interest, how was this tested? There is no 32x8 modifier in the
format list in format_modifiers_afbc[], so it seems like it shouldn't
be possible to get a 32x8 buffer on a plane at all.

You can use the drm_info utility from
https://gitlab.freedesktop.org/emersion/drm_info to validate that the
list of supported formats/modifiers for each plane matches your
expectation.

Cheers,
Daniel