This is v2 of [1], with the following changes: - Add helpers to convert between fractional and integer bpp values instead of open coding these. (Jani) - Increase back pipe B's link bpp after it was reduced due to a BW limit on FDI wrt. pipe C and then pipe C gets disabled. (Patch 8) - Fix various MST DSC issues. (Patch 16-20) - Add missing DocBook descriptions. Tested on IVB, TGL, ADLP. [1] https://lore.kernel.org/intel-gfx/20230817161456.3857111-1-imre.deak@xxxxxxxxx Imre Deak (22): drm/i915/dp: Factor out helpers to compute the link limits drm/i915/dp: Track the pipe and link bpp limits separately drm/i915/dp: Skip computing a non-DSC link config if DSC is needed drm/i915/dp: Update the link bpp limits for DSC mode drm/i915/dp: Limit the output link bpp in DSC mode drm/i915: Add helper to modeset a set of pipes drm/i915: Factor out a helper to check/compute all the CRTC states drm/i915/fdi: Improve FDI BW sharing between pipe B and C drm/dp_mst: Fix fractional bpp scaling in drm_dp_calc_pbn_mode() drm/dp_mst: Add a way to calculate PBN values with FEC overhead 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/i915/dp_mst: Fix PBN calculation with FEC overhead 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: Enable DSC decompression if any stream needs this drm/i915/dp_mst: Add missing DSC compression disabling drm/i915/dp_mst: Allow DSC only for sink ports of the first branch device drm/i915/dp_mst: Improve BW sharing between MST streams drm/i915/dp_mst: Check BW limitations only after all streams are computed .../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_mst_topology.c | 171 +++++++++-- drivers/gpu/drm/i915/display/g4x_hdmi.c | 5 +- drivers/gpu/drm/i915/display/intel_atomic.c | 217 ++++++++++++++ drivers/gpu/drm/i915/display/intel_atomic.h | 8 + drivers/gpu/drm/i915/display/intel_crt.c | 7 + drivers/gpu/drm/i915/display/intel_crtc.c | 1 + drivers/gpu/drm/i915/display/intel_ddi.c | 12 +- drivers/gpu/drm/i915/display/intel_display.c | 164 +++++++---- drivers/gpu/drm/i915/display/intel_display.h | 7 + .../drm/i915/display/intel_display_types.h | 30 +- drivers/gpu/drm/i915/display/intel_dp.c | 185 +++++++++--- drivers/gpu/drm/i915/display/intel_dp.h | 17 +- drivers/gpu/drm/i915/display/intel_dp_mst.c | 278 +++++++++++++++--- drivers/gpu/drm/i915/display/intel_dp_mst.h | 3 + drivers/gpu/drm/i915/display/intel_fdi.c | 137 +++++++-- drivers/gpu/drm/i915/display/intel_fdi.h | 5 + drivers/gpu/drm/i915/display/intel_lvds.c | 9 +- drivers/gpu/drm/i915/display/intel_sdvo.c | 9 +- drivers/gpu/drm/i915/display/intel_vdsc.c | 6 + drivers/gpu/drm/nouveau/dispnv50/disp.c | 2 +- .../gpu/drm/tests/drm_dp_mst_helper_test.c | 31 +- include/drm/display/drm_dp_mst_helper.h | 9 +- 24 files changed, 1107 insertions(+), 210 deletions(-) -- 2.37.2
