[PATCH 0/6] drm: Add mouse cursor hotspot support to atomic KMS

[Zack Rusin]

On Wed, 2023-06-21 at 09:10 +0200, Javier Martinez Canillas wrote:
> !! External Email
> 
> [adding Zack Rusin again who seems to have fallen from the Cc list]
> 
> Albert Esteve <aesteve at redhat.com> writes:
> > On 6/10/22 10:59, Daniel Vetter wrote:
> > > On Fri, Jun 10, 2022 at 10:41:05AM +0200, Daniel Vetter wrote:
> 
> [...]
> 
> > > > - third issue: These special virtual display properties arent documented.
> > > >    Aside from hotspot there's also suggested X/Y and maybe other stuff. I
> > > >    have no idea what suggested X/Y does and what userspace should do with
> > > >    it. I think we need a new section for virtualized drivers which:
> > > >    - documents all the properties involved
> > > >    - documents the new cap for enabling virtual cursor planes
> > > >    - documents some of the key flows that compositors should implement for
> > > >      best experience
> > > >    - documents how exactly the user experience will degrade if compositors
> > > >      pretend it's just a normal kms driver (maybe put that into each of the
> > > >      special flows that a compositor ideally supports)
> > > >    - whatever other comments and gaps I've missed, I'm sure
> > > >      Simon/Pekka/others will chime in once the patch exists.
> 
> What is missing for these patches to land? If I understood correctly is
> just these properties documentation that Sima asked above ?
> 
> > > Great bonus would be an igt which demonstrates these flows. With the
> > > interactive debug breakpoints to wait for resizing or whatever this should
> > > be all neatly possible.
> > > -Daniel
> > 
> > Hi all,
> > 
> > We have been testing the v2 of this patch and it works correctly for us.
> > 
> > First we tested with a patched Mutter, the mouse clicks were correct,
> > and behavior was as expected.
> > 
> > But I've also added an IGT test as suggested above:
> > https://gitlab.freedesktop.org/aesteve/igt-gpu-tools/-/compare/master...modeset-cursor-hotspot-test?from_project_id=1274
> > 
> > I could post the IGT patch upstream once Zack's patches land.
> > 
> 
> Zack, are you planning to re-spin the series soon? Otherwise Albert could
> continue working on that if you prefer.

Besides mutter I wanted to patch kwin as well, but I haven't been able to find the
time to patch it as well. I can respin with discussed changes over the weekend if
we're ok with getting this in without kde support from the start.

z