[PATCH 0/2] AuxCCS handling and render compression modifiers

[Tvrtko Ursulin]

A two patch series to fix and add xe support for AuxCSS framebuffers via DPT.

Currently the auxiliary buffer data isn't mapped into the page tables at all so
cf48bddd31de ("drm/i915/display: Disable AuxCCS framebuffers if built for Xe")
had to disable the support.

First patch fixes that and second effectively reverts cf48bddd31de.

Tested with KDE Wayland, on Lenovo Carbon X1 ADL-P:

  [PLANE:32:plane 1A]: type=PRI
          uapi: [FB:242] AR30 little-endian (0x30335241),0x100000000000008,2880x1800, visible=visible, src=2880.000000x1800.000000+0.000000+0.000000, dst=2880x1800+0+0, rotation=0 (0x00000001)
          hw: [FB:242] AR30 little-endian (0x30335241),0x100000000000008,2880x1800, visible=yes, src=2880.000000x1800.000000+0.000000+0.000000, dst=2880x1800+0+0, rotation=0 (0x00000001)

Display working fine - no artefacts, no DMAR/PIPE faults.

Cc: José Roberto de Souza <jose.souza at intel.com>
Cc: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>
Cc: Michael J. Ruhl <michael.j.ruhl at intel.com>

Tvrtko Ursulin (2):
  drm/xe/display: Add support for AuxCCS
  drm/xe/display: Expose AuxCCS frame buffer modifiers

 .../drm/i915/display/skl_universal_plane.c    |   6 -
 drivers/gpu/drm/xe/display/xe_fb_pin.c        | 107 +++++++++++++-----
 2 files changed, 80 insertions(+), 33 deletions(-)

-- 
2.48.0