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From: Pekka Paalanen <ppaalanen@gmail.com>
To: Paul Cercueil <paul@crapouillou.net>
Cc: Simon Ser <contact@emersion.fr>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	David Airlie <airlied@linux.ie>,
	linux-kernel@vger.kernel.org, od@zcrc.me,
	dri-devel@lists.freedesktop.org, stable@vger.kernel.org
Subject: Re: [PATCH] drm: DON'T require each CRTC to have a unique primary plane
Date: Mon, 29 Mar 2021 11:15:33 +0300	[thread overview]
Message-ID: <20210329111533.47e44f72@eldfell> (raw)
In-Reply-To: <24LMQQ.CRNKYEI6GB2T1@crapouillou.net>

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On Sat, 27 Mar 2021 11:26:26 +0000
Paul Cercueil <paul@crapouillou.net> wrote:

> It has two mutually exclusive background planes (same Z level) + one 
> overlay plane.

What's the difference between the two background planes?

How will generic userspace know to pick the "right" one?


Thanks,
pq

> Le sam. 27 mars 2021 à 11:24, Simon Ser <contact@emersion.fr> a écrit 
> :
> > On Saturday, March 27th, 2021 at 12:22 PM, Paul Cercueil 
> > <paul@crapouillou.net> wrote:
> >   
> >>  The ingenic-drm driver has two mutually exclusive primary planes
> >>  already; so the fact that a CRTC must have one and only one primary
> >>  plane is an invalid assumption.  
> > 
> > Why does this driver expose two primary planes, if it only has a 
> > single
> > CRTC?  
> 
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel


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  reply	other threads:[~2021-03-29  8:24 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-27 11:22 [PATCH] drm: DON'T require each CRTC to have a unique primary plane Paul Cercueil
2021-03-27 11:24 ` Simon Ser
2021-03-27 11:26   ` Paul Cercueil
2021-03-29  8:15     ` Pekka Paalanen [this message]
2021-03-29 11:41       ` Paul Cercueil
2021-03-29 14:35         ` Pekka Paalanen
2021-03-29 15:21           ` Paul Cercueil
2021-03-29 14:07 ` Maxime Ripard
2021-03-29 14:11   ` Simon Ser
2021-03-29 15:32     ` Paul Cercueil
2021-03-29 15:36       ` Simon Ser
2021-03-30  6:55         ` Pekka Paalanen
2021-03-29 15:15   ` Paul Cercueil
2021-03-29 15:35     ` Maxime Ripard
2021-03-29 15:39       ` Paul Cercueil
2021-03-29 15:42         ` Simon Ser
2021-03-29 16:15           ` Paul Cercueil

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