On Mon, 29 Mar 2021 15:36:27 +
Simon Ser wrote:
> On Monday, March 29th, 2021 at 5:32 PM, Paul Cercueil
> wrote:
>
> > Making the second plane an overlay would break the ABI, which is never
> > something I'm happy to do; but I'd prefer to do it now than later.
>
> Yeah, I wonder if some
Le lun. 29 mars 2021 à 15:42, Simon Ser a écrit
:
On Monday, March 29th, 2021 at 5:39 PM, Paul Cercueil
wrote:
Ok, I read that as "all drivers should provide AT LEAST one primary
plane per CRTC", and not as "all drivers should provide ONE AND ONLY
ONE primary plane per CRTC". My bad.
On Monday, March 29th, 2021 at 5:39 PM, Paul Cercueil
wrote:
> Ok, I read that as "all drivers should provide AT LEAST one primary
> plane per CRTC", and not as "all drivers should provide ONE AND ONLY
> ONE primary plane per CRTC". My bad.
Yeah, it's a little complicated to document, because i
Le lun. 29 mars 2021 à 17:35, Maxime Ripard a
écrit :
On Mon, Mar 29, 2021 at 04:15:28PM +0100, Paul Cercueil wrote:
Hi Maxime,
Le lun. 29 mars 2021 à 16:07, Maxime Ripard a
écrit :
> On Sat, Mar 27, 2021 at 11:22:14AM +, Paul Cercueil wrote:
> > The ingenic-drm driver has two
On Monday, March 29th, 2021 at 5:32 PM, Paul Cercueil
wrote:
> Making the second plane an overlay would break the ABI, which is never
> something I'm happy to do; but I'd prefer to do it now than later.
Yeah, I wonder if some user-space depends on this behavior somehow?
> I still have concerns
On Mon, Mar 29, 2021 at 04:15:28PM +0100, Paul Cercueil wrote:
> Hi Maxime,
>
> Le lun. 29 mars 2021 à 16:07, Maxime Ripard a écrit :
> > On Sat, Mar 27, 2021 at 11:22:14AM +, Paul Cercueil wrote:
> > > The ingenic-drm driver has two mutually exclusive primary planes
> > > already; so the f
Hi Simon,
Le lun. 29 mars 2021 à 14:11, Simon Ser a écrit
:
On Monday, March 29th, 2021 at 4:07 PM, Maxime Ripard
wrote:
Since it looks like you have two mutually exclusive planes, just
expose
one and be done with it?
You can expose the other as an overlay. Clever user-space will be a
Le lun. 29 mars 2021 à 17:35, Pekka Paalanen a
écrit :
On Mon, 29 Mar 2021 12:41:00 +0100
Paul Cercueil wrote:
Hi,
Le lun. 29 mars 2021 à 11:15, Pekka Paalanen
a
écrit :
> On Sat, 27 Mar 2021 11:26:26 +
> Paul Cercueil wrote:
>
>> It has two mutually exclusive background
Hi Maxime,
Le lun. 29 mars 2021 à 16:07, Maxime Ripard a
écrit :
On Sat, Mar 27, 2021 at 11:22:14AM +, Paul Cercueil 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 assumptio
On Mon, 29 Mar 2021 12:41:00 +0100
Paul Cercueil wrote:
> Hi,
>
> Le lun. 29 mars 2021 à 11:15, Pekka Paalanen a
> écrit :
> > On Sat, 27 Mar 2021 11:26:26 +
> > Paul Cercueil wrote:
> >
> >> It has two mutually exclusive background planes (same Z level) + one
> >> overlay plane.
>
On Monday, March 29th, 2021 at 4:07 PM, Maxime Ripard wrote:
> Since it looks like you have two mutually exclusive planes, just expose
> one and be done with it?
You can expose the other as an overlay. Clever user-space will be able
to figure out that the more advanced plane can be used if the p
On Sat, Mar 27, 2021 at 11:22:14AM +, Paul Cercueil 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.
I mean, no? It's been documented for a while that a CRTC should
Hi,
Le lun. 29 mars 2021 à 11:15, Pekka Paalanen a
écrit :
On Sat, 27 Mar 2021 11:26:26 +
Paul Cercueil 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 kno
On Sat, 27 Mar 2021 11:26:26 +
Paul Cercueil 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
It has two mutually exclusive background planes (same Z level) + one
overlay plane.
-Paul
Le sam. 27 mars 2021 à 11:24, Simon Ser a écrit
:
On Saturday, March 27th, 2021 at 12:22 PM, Paul Cercueil
wrote:
The ingenic-drm driver has two mutually exclusive primary planes
already; so the
On Saturday, March 27th, 2021 at 12:22 PM, Paul Cercueil
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 h
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.
Fixes: 96962e3de725 ("drm: require each CRTC to have a unique primary plane")
Cc: # 5.11
Signed-off-by: Paul Cercueil
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drivers/
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