[PATCH 0/5] drm/uapi: Intoduce DRM_MODE_DUMB_CURSOR

[Ville Syrjala <ville.syrjala@linux.intel.com>]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Currently DRM_IOCTL_MODE_CREATE_DUMB isn't really suitable for
allocating buffers for cursor planes (at least on Intel GPUs).

Introduce a new DRM_MODE_DUMB_CURSOR flag for
DRM_IOCTL_MODE_CREATE_DUMB so that userspace can tell us that
it wants a dumb buffer for a cursor plane. And implement support
fot the new flag in i915.

This is more of an RFC at this point to see what people think.
I haven't done any userspace changes yet. Figured I'd gauge
the general interest first...

Cc: Daniel Stone <daniels@collabora.com>

Ville Syrjälä (5):
  drm/uapi: Validate DRM_IOCTL_MODE_CREATE_DUMB flags
  drm/uapi: Introduce the DRM_MODE_DUMB_CURSOR flag
  drm/i915/dumb: Move the display dumb buffer stuff into the display
    code
  drm/i915/dumb: Reject dumb buffer that exceed max fb dimensions
  drm/i915/dumb: Handle DRM_MODE_DUMB_CURSOR

 drivers/gpu/drm/drm_dumb_buffers.c           |  2 +
 drivers/gpu/drm/i915/display/intel_cursor.c  | 38 ++++++++++++++
 drivers/gpu/drm/i915/display/intel_cursor.h  |  3 ++
 drivers/gpu/drm/i915/display/intel_display.c | 11 ++++
 drivers/gpu/drm/i915/display/intel_display.h |  3 ++
 drivers/gpu/drm/i915/display/intel_plane.c   | 39 ++++++++++++++
 drivers/gpu/drm/i915/display/intel_plane.h   |  4 ++
 drivers/gpu/drm/i915/gem/i915_gem_create.c   | 55 ++++++++++----------
 include/uapi/drm/drm_mode.h                  |  4 +-
 9 files changed, 130 insertions(+), 29 deletions(-)

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2.49.1