Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1410276

Re: [PATCH 4/5] add cursor hotspot to drm_framebuffer

From Gerd Hoffmann <kraxel@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH 4/5] add cursor hotspot to drm_framebuffer
Date 2016-05-31 15:10 +0200
Message-ID <rERAJ-38J-5@gated-at.bofh.it> (permalink)
References <rEPyV-1EG-9@gated-at.bofh.it> <rEPyW-1EG-53@gated-at.bofh.it> <rER7H-2H1-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Di, 2016-05-31 at 15:36 +0300, Ville Syrjälä wrote:

> Why store it in the fb and not eg. the plane state?

Well, drm_plane_state is allocated by drm_atomic_helper_update_plane.

When sticking the hotspot into the the plane state we have to add hot_x
and hot_y parameters to drm_plane_funcs->update_plane() and cause quite
some churn all over the drm tree.

Or create a separate code path for cursor updates which uses a special
drm_atomic_helper_update_plane version, which doesn't look very
attractive too due to code duplication.

Sticking it into the drm_framebuffer instead looks like a reasonable
alternative.

I'm open to better suggestions.

cheers,
  Gerd

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH 4/5] add cursor hotspot to drm_framebuffer Gerd Hoffmann <kraxel@redhat.com> - 2016-05-31 13:00 +0200
  Re: [PATCH 4/5] add cursor hotspot to drm_framebuffer Daniel Vetter <daniel@ffwll.ch> - 2016-05-31 13:00 +0200
  Re: [PATCH 4/5] add cursor hotspot to drm_framebuffer Ville Syrjälä <ville.syrjala@linux.intel.com> - 2016-05-31 14:40 +0200
    Re: [PATCH 4/5] add cursor hotspot to drm_framebuffer Gerd Hoffmann <kraxel@redhat.com> - 2016-05-31 15:10 +0200
      Re: [PATCH 4/5] add cursor hotspot to drm_framebuffer Ville Syrjälä <ville.syrjala@linux.intel.com> - 2016-05-31 16:00 +0200

csiph-web