This is a new version of patches 12-24 in [1], with the following changes/additions: - Fix accounting for FEC/DSC BW overheads (patch 8, 10-12). - Add a workaround for a Synpatics HBLANK expansion vs. DSC quirk (patch 6, 7, 20). - Add support for enabling DSC for each MST stream, required by the above workaround (patch 5, 17-19, 21-26). - Enable FEC early, once it's known DSC will need it (patch 9). - Adding a patch from Stan, which fixes DSC issues and allows enabling it (patch 29). [1] https://lore.kernel.org/all/20230914192659.757475-1-imre.deak@xxxxxxxxx Cc: Stanislav Lisovskiy <stanislav.lisovskiy@xxxxxxxxx> Cc: Lyude Paul <lyude@xxxxxxxxxx> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Imre Deak (27): drm/dp_mst: Add helper to determine if an MST port is downstream of another port drm/dp_mst: Factor out a helper to check the atomic state of a topology manager drm/dp_mst: Swap the order of checking root vs. non-root port BW limitations drm/dp_mst: Allow DSC in any Synaptics last branch device drm/dp: Add DP_HBLANK_EXPANSION_CAPABLE and DSC_PASSTHROUGH_EN DPCD flags drm/dp_mst: Add HBLANK expansion quirk for Synaptics MST hubs drm/dp: Add helpers to calculate the link BW overhead drm/i915/dp_mst: Enable FEC early once it's known DSC is needed drm/i915/dp: Specify the FEC overhead as an increment vs. a remainder drm/i915/dp: Pass actual BW overhead to m_n calculation drm/i915/dp_mst: Account for FEC and DSC overhead during BW allocation drm/i915/dp_mst: Add atomic state for all streams on pre-tgl platforms drm/i915/dp_mst: Program the DSC PPS SDP for each stream drm/i915/dp: Make sure the DSC PPS SDP is disabled whenever DSC is disabled drm/i915/dp_mst: Add missing DSC compression disabling drm/i915/dp: Rename intel_ddi_disable_fec_state() to intel_ddi_disable_fec() drm/i915/dp: Wait for FEC detected status in the sink drm/i915/dp: Disable FEC ready flag in the sink drm/i915/dp_mst: Handle the Synaptics HBlank expansion quirk drm/i915/dp_mst: Enable decompression in the sink from the MST encoder hooks drm/i915/dp: Enable DSC via the connector decompression AUX drm/i915/dp_mst: Enable DSC passthrough drm/i915/dp_mst: Enable MST DSC decompression for all streams drm/i915: Factor out function to clear pipe update flags drm/i915/dp_mst: Force modeset CRTC if DSC toggling requires it drm/i915/dp_mst: Improve BW sharing between MST streams drm/i915/dp_mst: Check BW limitations only after all streams are computed Stanislav Lisovskiy (1): drm/i915: Query compressed bpp properly using correct DPCD and DP Spec info Ville Syrjälä (1): drm/dp_mst: Fix fractional DSC bpp handling .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +- .../display/amdgpu_dm/amdgpu_dm_mst_types.c | 2 +- drivers/gpu/drm/display/drm_dp_helper.c | 115 ++++ drivers/gpu/drm/display/drm_dp_mst_topology.c | 206 +++++-- drivers/gpu/drm/i915/display/intel_ddi.c | 131 ++++- drivers/gpu/drm/i915/display/intel_ddi.h | 3 + drivers/gpu/drm/i915/display/intel_display.c | 101 ++-- drivers/gpu/drm/i915/display/intel_display.h | 4 +- .../drm/i915/display/intel_display_types.h | 3 + drivers/gpu/drm/i915/display/intel_dp.c | 135 ++++- drivers/gpu/drm/i915/display/intel_dp.h | 16 +- drivers/gpu/drm/i915/display/intel_dp_mst.c | 554 +++++++++++++++--- drivers/gpu/drm/i915/display/intel_dp_mst.h | 5 + drivers/gpu/drm/i915/display/intel_fdi.c | 5 +- drivers/gpu/drm/i915/display/intel_link_bw.c | 16 +- drivers/gpu/drm/i915/display/intel_link_bw.h | 1 + drivers/gpu/drm/nouveau/dispnv50/disp.c | 3 +- .../gpu/drm/tests/drm_dp_mst_helper_test.c | 6 +- include/drm/display/drm_dp.h | 2 + include/drm/display/drm_dp_helper.h | 18 + include/drm/display/drm_dp_mst_helper.h | 9 +- 21 files changed, 1108 insertions(+), 229 deletions(-) -- 2.39.2
