Re: [PATCH] drm/amd/display: add basic atomic check for cursor plane

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On Monday, March 30, 2020 5:18 PM, Kazlauskas, Nicholas <nicholas.kazlauskas@xxxxxxx> wrote:

> On 2020-03-30 9:13 a.m., Simon Ser wrote:
>
> > On Monday, March 30, 2020 3:11 PM, Kazlauskas, Nicholas nicholas.kazlauskas@xxxxxxx wrote:
> >
> > > On 2020-03-30 9:02 a.m., Simon Ser wrote:
> > >
> > > > On Monday, March 30, 2020 2:59 PM, Kazlauskas, Nicholas nicholas.kazlauskas@xxxxxxx wrote:
> > > >
> > > > > We've been doing these checks for position before but I don't think we
> > > > > really need them. DC should be disabling the cursor when we ask for a
> > > > > position completely off the screen.
> > > > > I think that's better than rejecting the commit entirely at least.
> > > >
> > > > I agree DC should be disabling the cursor in this case, however that's
> > > > not yet implemented right? I think implementing this feature is
> > > > orthogonal and should be done in a separate patch.
> > > > This patch simply copies over the cursor checks in the atomic check
> > > > function.
> > >
> > > It's implemented on DCN but I don't remember if we're doing it on DCE.
> > > I guess the drop can be in a separate patch.
> > > Reviewed-by: Nicholas Kazlauskas nicholas.kazlauskas@xxxxxxx
> >
> > Thanks for the review. I'll try to figure out whether we can drop this
> > check (from both the atomic check and the other existing check).
>
> Oh, this was actually the checks for crtc_w/crtc_h. Not the x/y, my bad.
>
> We probably can't drop this from here, but we can drop it from
> get_cursor_position after this patch - since it's now in the atomic check.

Hmm, sorry I think I missed something. This patch does copy over the
x/y checks. We need to keep the w/h checks right?

Yeah, we can probably drop get_cursor_position checks indeed.
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