[PATCH 00/18] drm/amd/display: Enable writeback for amdgpu

[Alex Hung]

This patchset adds drm_writeback connector supports and enables display
writeback block (DWB) in AMD hardware.

The function can be tested by IGT's kms_writeback test which also
requires a number of patches to enable 10bit (DRM_FORMAT_XRGB2101010).
Patches are available @ https://patchwork.freedesktop.org/series/122536/

Alex Hung (10):
  drm/amd/display: Initialize writeback connector
  drm/amd/display: Hande writeback request from userspace
  drm/amd/display: Add writeback enable/disable in dc
  drm/amd/display: Fix writeback_info never got updated
  drm/amd/display: Validate hw_points_num before using it
  drm/amd/display: Fix writeback_info is not removed
  drm/amd/display: Add writeback enable field (wb_enabled)
  drm/amd/display: Setup for mmhubbub3_warmup_mcif with big buffer
  drm/amd/display: Add new set_fc_enable to struct dwbc_funcs
  drm/amd/display: Disable DWB frame capture to emulate oneshot

Harry Wentland (8):
  drm/amd/display: Skip entire amdgpu_dm build if !CONFIG_DRM_AMD_DC
  drm/amd/display: Create one virtual connector in DC
  drm/amd/display: Skip writeback connector when we get
    amdgpu_dm_connector
  drm/amd/display: Return drm_connector from
    find_first_crtc_matching_connector
  drm/amd/display: Use drm_connector in create_stream_for_sink
  drm/amd/display: Use drm_connector in create_validate_stream_for_sink
  drm/amd/display: Create amdgpu_dm_wb_connector
  drm/amd/display: Create fake sink and stream for writeback connector

 drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h      |   4 +
 .../gpu/drm/amd/display/amdgpu_dm/Makefile    |  14 +-
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 375 ++++++++++++++++--
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h |  12 +-
 .../drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c |   3 +
 .../drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c |  22 +-
 .../display/amdgpu_dm/amdgpu_dm_mst_types.c   |   8 +-
 .../drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c  | 215 ++++++++++
 .../drm/amd/display/amdgpu_dm/amdgpu_dm_wb.h  |  36 ++
 .../gpu/drm/amd/display/dc/core/dc_stream.c   |  80 +++-
 drivers/gpu/drm/amd/display/dc/dc_stream.h    |   4 +
 .../gpu/drm/amd/display/dc/dcn30/dcn30_dwb.c  |  23 ++
 .../gpu/drm/amd/display/dc/dcn30/dcn30_dwb.h  |   2 +
 .../drm/amd/display/dc/dcn30/dcn30_dwb_cm.c   |   3 +
 .../drm/amd/display/dc/dcn30/dcn30_hwseq.c    |   4 +
 .../drm/amd/display/dc/dcn31/dcn31_hwseq.c    |   3 +-
 drivers/gpu/drm/amd/display/dc/inc/hw/dwb.h   |   4 +
 17 files changed, 742 insertions(+), 70 deletions(-)
 create mode 100644 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c
 create mode 100644 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.h

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2.41.0