Dirty rect support for FBC in xe3 onwards based on the comments after the
initial RFC series.
v2: Dirty rect related compute and storage moved to fbc state (Ville)
V3: Dont call fbc activate if FBC is already active
v4: Dirty rect compute and programming moved within DSB scope
New changes are added as separate patches to make it easy for review
But could be squashed if the reviews as ok.
v5: add HAS_FBC_DIRTY_RECT()
FBC Damage area updates in 3 steps.
1. As part of plane_atomic_check() get, adjust coordinates and store
the merged damage area in plane_state
2. Atomic_commit, update merged damage are to fbc_state and prepare the
damage area satifying all conditions
3 update the FBC dirty rect registers as part of DSB commit.
v6: Use dmage_merged helper earlier to handle bigjoiner cases (Ville)
Place the damage_merged handling code under HAS_FBC_DIRTY_RECT()
Added a variable to check if the damage_merged received from
the helper is valid. And if it is not valid, the FBC dirty rect
is updated with full plane reqion.
Vinod Govindapillai (7):
drm/i915/xe3: add register definitions for fbc dirty rect support
drm/i915/xe3: introduce HAS_FBC_DIRTY_RECT() for FBC dirty rect
support
drm/damage-helper: add const qualifier in
drm_atomic_helper_damage_merged()
drm/i915/xe3: update and store the plane damage clips
drm/i915/xe3: dirty rect support for FBC
drm/i915/xe3: avoid calling fbc activate if fbc is active
drm/i915/xe3: disable FBC if PSR2 selective fetch is enabled
drivers/gpu/drm/drm_damage_helper.c | 2 +-
.../gpu/drm/i915/display/intel_atomic_plane.c | 28 ++++
drivers/gpu/drm/i915/display/intel_display.c | 7 +
.../drm/i915/display/intel_display_device.h | 1 +
.../drm/i915/display/intel_display_types.h | 2 +
drivers/gpu/drm/i915/display/intel_fbc.c | 152 +++++++++++++++++-
drivers/gpu/drm/i915/display/intel_fbc.h | 6 +
drivers/gpu/drm/i915/display/intel_fbc_regs.h | 9 ++
.../drm/i915/display/skl_universal_plane.c | 45 +++++-
include/drm/drm_damage_helper.h | 2 +-
10 files changed, 246 insertions(+), 8 deletions(-)
--
2.43.0
