[PATCH v2 0/2] drm/i915/fbc: Dirty rectangle bounding and CFB nuke handling

[Austin Hu <austin.hu@intel.com>]

This series fixes two issue areas in Intel FBC (Framebuffer Compression)
dirty rectangle handling:

1. Clamps FBC dirty rectangle bounds to valid surface limits [y_offset, y_end]
   and adds logging for out-of-bounds coordinates, including handling for 
   180-degree plane rotation.
2. Tracks plane state attribute changes during atomic commits. When FBC Dirty
   Rectangle mode is active, partial updates only apply to surface address
   changes (PLANE_SURF). Modifications to any other plane state parameters
   require fetching full-plane pixel data from memory to re-compress and
   update the entire CFB in stolen memory. Once fully re-compressed,
   subsequent atomic commits can resume selective dirty rectangle updates.

v1 -> v2 changes:
  - Reused intel_fbc_can_flip_nuke() for plane update state checks as suggested.
  - Added plane Y-coordinate plane view checking (color_plane[0].y) alongside X.

Austin Hu (1):
  drm/i915/fbc: nuke CFB if Plane setting (except for surf addr) changes

Charlton Lin (1):
  drm/i915/fbc: fbc_dirty_rect restrictions and logging

 drivers/gpu/drm/i915/display/intel_fbc.c | 192 +++++++++++++++++------
 1 file changed, 141 insertions(+), 51 deletions(-)

-- 
2.34.1