[PATCH v5 00/12] drm/msm/dpu: support virtual wide planes

[Dmitry Baryshkov]

As promised in the basic wide planes support ([1]) here comes a series
supporting 2*max_linewidth for all the planes.

Note: Unlike v1 and v2 this series finally includes support for
additional planes - having more planes than the number of SSPP blocks.

Note: this iteration features handling of rotation and reflection of the
wide plane. However rot90 is still not tested: it is enabled on sc7280
and it only supports UBWC (tiled) framebuffers, it was quite low on my
priority list.

[1] https://patchwork.freedesktop.org/series/99909/

To: Rob Clark <robdclark at gmail.com>
To: Abhinav Kumar <quic_abhinavk at quicinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
To: Sean Paul <sean at poorly.run>
To: Marijn Suijten <marijn.suijten at somainline.org>
To: David Airlie <airlied at gmail.com>
To: Daniel Vetter <daniel at ffwll.ch>
Cc: linux-arm-msm at vger.kernel.org
Cc: dri-devel at lists.freedesktop.org
Cc: freedreno at lists.freedesktop.org
Cc: linux-kernel at vger.kernel.org

Changes in v5:
- Dropped extra dpu_kms instance from dpu_plane_atomic_check() (Abhinav)
- Use DRM_PLANE_NO_SCALING instead of (1 << 16) (Abhinav)
- Dropped excess returns documentation for dpu_rm_reserve_sspp() (Sui
  Jingfeng, Abhinav)
- best_weght -> best_weight (Abhinav)
- Moved drm_rect_width() call back to the the patch "split
  dpu_plane_atomic_check()" (Abhinav)
- Got rid of saved_fmt / saved dimensions (Abhinav)
- Expanded the commit message to describe SSPP allocation per CRTC id
  (Abhinav)
- Added comment on why the size change also causes resource reallocation
  (Abhinav)
- Dropeed several last "feature" patches, leaving only SSPP reallocation
  and using 2 SSPPs per plane for now. The rest will be submitted
  separately.

Changes since v3:
- Dropped the drm_atomic_helper_check_plane_noscale (Ville)
- Reworked the scaling factor according to global value and then check
  if SSPP has scaler_blk later on.
- Split drm_rect_fp_to_int from the rotation-related fix (Abhinav)

Changes since v2:
- Dropped the encoder-related parts, leave all resource allocation as is
  (Abhinav)
- Significantly reworked the SSPP allocation code
- Added debugging code to dump RM state in dri/N/state

Changes since v1:
- Fixed build error due to me missing one of fixups, it was left
  uncommitted.
- Implementated proper handling of wide plane rotation & reflection.

---
Dmitry Baryshkov (12):
      drm/msm/dpu: limit QCM2290 to RGB formats only
      drm/msm/dpu: relax YUV requirements
      drm/msm/dpu: take plane rotation into account for wide planes
      drm/msm/dpu: use drm_rect_fp_to_int()
      drm/msm/dpu: move pstate->pipe initialization to dpu_plane_atomic_check
      drm/msm/dpu: drop virt_formats from SSPP subblock configuration
      drm/msm/dpu: move scaling limitations out of the hw_catalog
      drm/msm/dpu: split dpu_plane_atomic_check()
      drm/msm/dpu: move rot90 checking to dpu_plane_atomic_check_pipe()
      drm/msm/dpu: add support for virtual planes
      drm/msm/dpu: allow using two SSPP blocks for a single plane
      drm/msm/dpu: include SSPP allocation state into the dumped state

 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c       |  50 +++
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c |  24 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h |   8 -
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h    |   2 +
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c        |  10 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h        |   4 +
 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c      | 539 ++++++++++++++++++++-----
 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.h      |  18 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c         |  84 ++++
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h         |  27 ++
 10 files changed, 621 insertions(+), 145 deletions(-)
---
base-commit: 0fc4bfab2cd45f9acb86c4f04b5191e114e901ed
change-id: 20240626-dpu-virtual-wide-beefb746a900

Best regards,
-- 
Dmitry Baryshkov <dmitry.baryshkov at linaro.org>