[Intel-gfx] [PATCH 1/3] drm/i915: Don't set mode_config's cursor size

[Sagar Arun Kamble]

On Tue, 2014-03-25 at 14:59 +0000, Damien Lespiau wrote:
> On Tue, Mar 25, 2014 at 02:54:56PM +0000, Chris Wilson wrote:
> > On Tue, Mar 25, 2014 at 02:49:30PM +0000, Damien Lespiau wrote:
> > > Those fields are supposed to be a good default value for the cursor
> > > size, intended for the case where the hardware doesn't support 64x64
> > > cursors, for use with a hw agnostic DDX driver for instance.
> > > 
> > > We're fine with 64x64 cursors though and don't need to set those fields
> > > (DRM core will return 64 is we don't). If we declare 256x256, that
> > > generic driver will use a big buffer for the cursor, without any good
> > > reason.
> > 
> > How does userspace now know that 256x256 cursors are support for HiDPI?
> 
> It doesn't currently? a property on the cursor plane with the list of
> supported formats in the brave new full drm_plane world seems like a
> good option to me.
How do we handle cursor size cap that was added with
http://lists.freedesktop.org/archives/dri-devel/2014-February/053770.html.
Will change i-g-t kms_cursor_crc accordingly as well since it depends on
this cap.
>