[v2,00/16] drm/i915/dp: 128b/132b uncompressed SST

Message

Jani Nikula Dec. 19, 2024, 9:33 p.m. UTC

This is v2 of [1], enabling uncompressed 128b/132b UHBR SST.

The first one was accidentally "RFC v0", and there have been a few
iterations sent to CI trybot since, with various version numbers, so I
expect everyone to get royally confused about the versioning
here. Sorry.

Anyway, unlike with [1], we get a picture on screen with this, so it
must be perfect. Please review. :)


BR,
Jani.


[1] https://lore.kernel.org/r/[e-mail]

Jani Nikula (16):
  drm/mst: remove mgr parameter and debug logging from
    drm_dp_get_vc_payload_bw()
  drm/i915/mst: drop connector parameter from intel_dp_mst_bw_overhead()
  drm/i915/mst: drop connector parameter from intel_dp_mst_compute_m_n()
  drm/i915/mst: change return value of
    mst_stream_find_vcpi_slots_for_bpp()
  drm/i915/mst: remove crtc_state->pbn
  drm/i915/mst: split out a helper for figuring out the TU
  drm/i915/mst: adapt intel_dp_mtp_tu_compute_config() for 128b/132b SST
  drm/i915/ddi: enable 128b/132b TRANS_DDI_FUNC_CTL mode for UHBR SST
  drm/i915/ddi: 128b/132b SST also needs DP_TP_CTL_MODE_MST
  drm/i915/ddi: write payload for 128b/132b SST
  drm/i915/ddi: initialize 128b/132b SST DP2 VFREQ registers
  drm/i915/ddi: enable ACT handling for 128b/132b SST
  drm/i915/ddi: start distinguishing 128b/132b SST and MST at state
    readout
  drm/i915/ddi: handle 128b/132b SST in intel_ddi_read_func_ctl()
  drm/i915/ddi: disable trancoder port select for 128b/132b SST
  drm/i915/dp: compute config for 128b/132b SST w/o DSC

 drivers/gpu/drm/display/drm_dp_mst_topology.c |  10 +-
 drivers/gpu/drm/i915/display/intel_ddi.c      |  97 +++++++-
 .../drm/i915/display/intel_display_types.h    |   2 -
 drivers/gpu/drm/i915/display/intel_dp.c       |  34 ++-
 drivers/gpu/drm/i915/display/intel_dp_mst.c   | 218 +++++++++---------
 drivers/gpu/drm/i915/display/intel_dp_mst.h   |   7 +
 drivers/gpu/drm/nouveau/dispnv50/disp.c       |   3 +-
 .../gpu/drm/tests/drm_dp_mst_helper_test.c    |   4 +-
 include/drm/display/drm_dp_mst_helper.h       |   3 +-
 9 files changed, 235 insertions(+), 143 deletions(-)