✗ Fi.CI.BAT: failure for series starting with [01/26] drm/i915/dp: Factor out helpers to compute the link limits

Patchwork patchwork at emeril.freedesktop.org
Wed Sep 6 16:10:59 UTC 2023


== Series Details ==

Series: series starting with [01/26] drm/i915/dp: Factor out helpers to compute the link limits
URL   : https://patchwork.freedesktop.org/series/123335/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_13602 -> Trybot_123335v1
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Trybot_123335v1 absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Trybot_123335v1, please notify your bug team (lgci.bug.filing at intel.com) to allow them
  to document this new failure mode, which will reduce false positives in CI.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/index.html

Participating hosts (37 -> 39)
------------------------------

  Additional (4): fi-kbl-soraka fi-tgl-1115g4 bat-mtlp-6 fi-pnv-d510 
  Missing    (2): bat-dg2-14 fi-snb-2520m 

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in Trybot_123335v1:

### IGT changes ###

#### Possible regressions ####

  * igt at i915_selftest@live at gt_engines:
    - bat-mtlp-6:         NOTRUN -> [FAIL][1]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@i915_selftest@live@gt_engines.html

  
Known issues
------------

  Here are the changes found in Trybot_123335v1 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt at debugfs_test@basic-hwmon:
    - fi-tgl-1115g4:      NOTRUN -> [SKIP][2] ([i915#7456])
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-tgl-1115g4/igt@debugfs_test@basic-hwmon.html
    - bat-mtlp-6:         NOTRUN -> [SKIP][3] ([i915#7456])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@debugfs_test@basic-hwmon.html

  * igt at fbdev@info:
    - bat-mtlp-6:         NOTRUN -> [SKIP][4] ([i915#1849] / [i915#2582])
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@fbdev@info.html

  * igt at fbdev@write:
    - bat-mtlp-6:         NOTRUN -> [SKIP][5] ([i915#2582]) +3 other tests skip
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@fbdev@write.html

  * igt at gem_huc_copy@huc-copy:
    - fi-tgl-1115g4:      NOTRUN -> [SKIP][6] ([i915#2190])
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-tgl-1115g4/igt@gem_huc_copy@huc-copy.html
    - fi-kbl-soraka:      NOTRUN -> [SKIP][7] ([fdo#109271] / [i915#2190])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-kbl-soraka/igt@gem_huc_copy@huc-copy.html

  * igt at gem_lmem_swapping@basic:
    - fi-kbl-soraka:      NOTRUN -> [SKIP][8] ([fdo#109271] / [i915#4613]) +3 other tests skip
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-kbl-soraka/igt@gem_lmem_swapping@basic.html

  * igt at gem_lmem_swapping@parallel-random-engines:
    - fi-tgl-1115g4:      NOTRUN -> [SKIP][9] ([i915#4613]) +3 other tests skip
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-tgl-1115g4/igt@gem_lmem_swapping@parallel-random-engines.html

  * igt at gem_lmem_swapping@verify-random:
    - bat-mtlp-6:         NOTRUN -> [SKIP][10] ([i915#4613]) +3 other tests skip
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@gem_lmem_swapping@verify-random.html

  * igt at gem_mmap@basic:
    - bat-mtlp-6:         NOTRUN -> [SKIP][11] ([i915#4083])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@gem_mmap@basic.html

  * igt at gem_tiled_blits@basic:
    - bat-mtlp-6:         NOTRUN -> [SKIP][12] ([i915#4077]) +2 other tests skip
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@gem_tiled_blits@basic.html

  * igt at gem_tiled_pread_basic:
    - bat-mtlp-6:         NOTRUN -> [SKIP][13] ([i915#4079]) +1 other test skip
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@gem_tiled_pread_basic.html

  * igt at i915_pm_backlight@basic-brightness:
    - fi-tgl-1115g4:      NOTRUN -> [SKIP][14] ([i915#3546] / [i915#7561])
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-tgl-1115g4/igt@i915_pm_backlight@basic-brightness.html
    - bat-mtlp-6:         NOTRUN -> [SKIP][15] ([i915#3546])
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@i915_pm_backlight@basic-brightness.html

  * igt at i915_pm_rps@basic-api:
    - bat-mtlp-6:         NOTRUN -> [SKIP][16] ([i915#6621])
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@i915_pm_rps@basic-api.html

  * igt at i915_selftest@live at gt_heartbeat:
    - fi-kbl-soraka:      NOTRUN -> [DMESG-FAIL][17] ([i915#5334] / [i915#7872])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-kbl-soraka/igt@i915_selftest@live@gt_heartbeat.html

  * igt at i915_selftest@live at gt_pm:
    - bat-mtlp-6:         NOTRUN -> [DMESG-FAIL][18] ([i915#9270])
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@i915_selftest@live@gt_pm.html
    - fi-kbl-soraka:      NOTRUN -> [DMESG-FAIL][19] ([i915#1886] / [i915#7913])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-kbl-soraka/igt@i915_selftest@live@gt_pm.html

  * igt at i915_selftest@live at hangcheck:
    - fi-kbl-soraka:      NOTRUN -> [ABORT][20] ([i915#7913] / [i915#9274])
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-kbl-soraka/igt@i915_selftest@live@hangcheck.html

  * igt at i915_suspend@basic-s3-without-i915:
    - fi-tgl-1115g4:      NOTRUN -> [INCOMPLETE][21] ([i915#7443] / [i915#8102])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-tgl-1115g4/igt@i915_suspend@basic-s3-without-i915.html
    - bat-mtlp-6:         NOTRUN -> [SKIP][22] ([i915#6645])
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@i915_suspend@basic-s3-without-i915.html

  * igt at kms_addfb_basic@addfb25-x-tiled-legacy:
    - bat-mtlp-6:         NOTRUN -> [SKIP][23] ([i915#4212]) +8 other tests skip
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@kms_addfb_basic@addfb25-x-tiled-legacy.html

  * igt at kms_addfb_basic@addfb25-y-tiled-small-legacy:
    - fi-hsw-4770:        NOTRUN -> [SKIP][24] ([fdo#109271]) +12 other tests skip
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-hsw-4770/igt@kms_addfb_basic@addfb25-y-tiled-small-legacy.html
    - bat-mtlp-6:         NOTRUN -> [SKIP][25] ([i915#5190])
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@kms_addfb_basic@addfb25-y-tiled-small-legacy.html

  * igt at kms_cursor_legacy@basic-busy-flip-before-cursor-atomic:
    - fi-kbl-soraka:      NOTRUN -> [SKIP][26] ([fdo#109271]) +8 other tests skip
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-kbl-soraka/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html
    - fi-tgl-1115g4:      NOTRUN -> [SKIP][27] ([i915#4103]) +1 other test skip
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-tgl-1115g4/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-atomic.html

  * igt at kms_cursor_legacy@basic-flip-after-cursor-legacy:
    - bat-mtlp-6:         NOTRUN -> [SKIP][28] ([i915#1845]) +11 other tests skip
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@kms_cursor_legacy@basic-flip-after-cursor-legacy.html

  * igt at kms_flip@basic-flip-vs-dpms:
    - bat-mtlp-6:         NOTRUN -> [SKIP][29] ([i915#3637]) +3 other tests skip
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@kms_flip@basic-flip-vs-dpms.html

  * igt at kms_force_connector_basic@force-load-detect:
    - fi-tgl-1115g4:      NOTRUN -> [SKIP][30] ([fdo#109285])
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-tgl-1115g4/igt@kms_force_connector_basic@force-load-detect.html
    - bat-mtlp-6:         NOTRUN -> [SKIP][31] ([fdo#109285])
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@kms_force_connector_basic@force-load-detect.html

  * igt at kms_force_connector_basic@prune-stale-modes:
    - bat-mtlp-6:         NOTRUN -> [SKIP][32] ([i915#5274])
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@kms_force_connector_basic@prune-stale-modes.html

  * igt at kms_frontbuffer_tracking@basic:
    - bat-mtlp-6:         NOTRUN -> [SKIP][33] ([i915#4342])
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@kms_frontbuffer_tracking@basic.html

  * igt at kms_pipe_crc_basic@read-crc-frame-sequence at pipe-b-dp-6:
    - bat-adlp-11:        [PASS][34] -> [ABORT][35] ([i915#8668])
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13602/bat-adlp-11/igt@kms_pipe_crc_basic@read-crc-frame-sequence@pipe-b-dp-6.html
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-adlp-11/igt@kms_pipe_crc_basic@read-crc-frame-sequence@pipe-b-dp-6.html

  * igt at kms_pipe_crc_basic@suspend-read-crc:
    - bat-mtlp-6:         NOTRUN -> [SKIP][36] ([i915#1845] / [i915#4078]) +4 other tests skip
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@kms_pipe_crc_basic@suspend-read-crc.html

  * igt at kms_pipe_crc_basic@suspend-read-crc at pipe-c-vga-1:
    - fi-hsw-4770:        NOTRUN -> [DMESG-WARN][37] ([i915#8841]) +6 other tests dmesg-warn
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-hsw-4770/igt@kms_pipe_crc_basic@suspend-read-crc@pipe-c-vga-1.html

  * igt at kms_psr@cursor_plane_move:
    - fi-tgl-1115g4:      NOTRUN -> [SKIP][38] ([fdo#110189]) +3 other tests skip
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-tgl-1115g4/igt@kms_psr@cursor_plane_move.html
    - bat-mtlp-6:         NOTRUN -> [SKIP][39] ([i915#1072]) +3 other tests skip
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@kms_psr@cursor_plane_move.html
    - bat-rplp-1:         NOTRUN -> [ABORT][40] ([i915#8469] / [i915#8668] / [i915#9243])
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-rplp-1/igt@kms_psr@cursor_plane_move.html

  * igt at kms_psr@primary_page_flip:
    - fi-pnv-d510:        NOTRUN -> [SKIP][41] ([fdo#109271]) +31 other tests skip
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-pnv-d510/igt@kms_psr@primary_page_flip.html
    - bat-rplp-1:         NOTRUN -> [SKIP][42] ([i915#1072])
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-rplp-1/igt@kms_psr@primary_page_flip.html

  * igt at kms_psr@sprite_plane_onoff:
    - fi-hsw-4770:        NOTRUN -> [SKIP][43] ([fdo#109271] / [i915#1072]) +3 other tests skip
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-hsw-4770/igt@kms_psr@sprite_plane_onoff.html

  * igt at kms_setmode@basic-clone-single-crtc:
    - fi-tgl-1115g4:      NOTRUN -> [SKIP][44] ([i915#3555])
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/fi-tgl-1115g4/igt@kms_setmode@basic-clone-single-crtc.html
    - bat-mtlp-6:         NOTRUN -> [SKIP][45] ([i915#3555] / [i915#8809])
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@kms_setmode@basic-clone-single-crtc.html

  * igt at prime_vgem@basic-fence-flip:
    - bat-mtlp-6:         NOTRUN -> [SKIP][46] ([i915#1845] / [i915#3708])
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@prime_vgem@basic-fence-flip.html

  * igt at prime_vgem@basic-fence-mmap:
    - bat-mtlp-6:         NOTRUN -> [SKIP][47] ([i915#3708] / [i915#4077]) +1 other test skip
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@prime_vgem@basic-fence-mmap.html

  * igt at prime_vgem@basic-write:
    - bat-mtlp-6:         NOTRUN -> [SKIP][48] ([i915#3708]) +2 other tests skip
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-6/igt@prime_vgem@basic-write.html

  
#### Possible fixes ####

  * igt at kms_pipe_crc_basic@read-crc-frame-sequence at pipe-d-dp-5:
    - bat-adlp-11:        [ABORT][49] ([i915#8668]) -> [PASS][50]
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13602/bat-adlp-11/igt@kms_pipe_crc_basic@read-crc-frame-sequence@pipe-d-dp-5.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-adlp-11/igt@kms_pipe_crc_basic@read-crc-frame-sequence@pipe-d-dp-5.html

  * igt at kms_pipe_crc_basic@read-crc-frame-sequence at pipe-d-edp-1:
    - bat-rplp-1:         [ABORT][51] ([i915#8442] / [i915#8668]) -> [PASS][52]
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13602/bat-rplp-1/igt@kms_pipe_crc_basic@read-crc-frame-sequence@pipe-d-edp-1.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-rplp-1/igt@kms_pipe_crc_basic@read-crc-frame-sequence@pipe-d-edp-1.html

  
#### Warnings ####

  * igt at i915_selftest@live at gt_engines:
    - bat-mtlp-8:         [FAIL][53] ([i915#6268]) -> [FAIL][54] ([i915#9278])
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13602/bat-mtlp-8/igt@i915_selftest@live@gt_engines.html
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/bat-mtlp-8/igt@i915_selftest@live@gt_engines.html

  
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109285]: https://bugs.freedesktop.org/show_bug.cgi?id=109285
  [fdo#110189]: https://bugs.freedesktop.org/show_bug.cgi?id=110189
  [i915#1072]: https://gitlab.freedesktop.org/drm/intel/issues/1072
  [i915#1845]: https://gitlab.freedesktop.org/drm/intel/issues/1845
  [i915#1849]: https://gitlab.freedesktop.org/drm/intel/issues/1849
  [i915#1886]: https://gitlab.freedesktop.org/drm/intel/issues/1886
  [i915#2190]: https://gitlab.freedesktop.org/drm/intel/issues/2190
  [i915#2582]: https://gitlab.freedesktop.org/drm/intel/issues/2582
  [i915#3546]: https://gitlab.freedesktop.org/drm/intel/issues/3546
  [i915#3555]: https://gitlab.freedesktop.org/drm/intel/issues/3555
  [i915#3637]: https://gitlab.freedesktop.org/drm/intel/issues/3637
  [i915#3708]: https://gitlab.freedesktop.org/drm/intel/issues/3708
  [i915#4077]: https://gitlab.freedesktop.org/drm/intel/issues/4077
  [i915#4078]: https://gitlab.freedesktop.org/drm/intel/issues/4078
  [i915#4079]: https://gitlab.freedesktop.org/drm/intel/issues/4079
  [i915#4083]: https://gitlab.freedesktop.org/drm/intel/issues/4083
  [i915#4103]: https://gitlab.freedesktop.org/drm/intel/issues/4103
  [i915#4212]: https://gitlab.freedesktop.org/drm/intel/issues/4212
  [i915#4342]: https://gitlab.freedesktop.org/drm/intel/issues/4342
  [i915#4613]: https://gitlab.freedesktop.org/drm/intel/issues/4613
  [i915#5190]: https://gitlab.freedesktop.org/drm/intel/issues/5190
  [i915#5274]: https://gitlab.freedesktop.org/drm/intel/issues/5274
  [i915#5334]: https://gitlab.freedesktop.org/drm/intel/issues/5334
  [i915#6268]: https://gitlab.freedesktop.org/drm/intel/issues/6268
  [i915#6621]: https://gitlab.freedesktop.org/drm/intel/issues/6621
  [i915#6645]: https://gitlab.freedesktop.org/drm/intel/issues/6645
  [i915#7443]: https://gitlab.freedesktop.org/drm/intel/issues/7443
  [i915#7456]: https://gitlab.freedesktop.org/drm/intel/issues/7456
  [i915#7561]: https://gitlab.freedesktop.org/drm/intel/issues/7561
  [i915#7872]: https://gitlab.freedesktop.org/drm/intel/issues/7872
  [i915#7913]: https://gitlab.freedesktop.org/drm/intel/issues/7913
  [i915#8102]: https://gitlab.freedesktop.org/drm/intel/issues/8102
  [i915#8442]: https://gitlab.freedesktop.org/drm/intel/issues/8442
  [i915#8469]: https://gitlab.freedesktop.org/drm/intel/issues/8469
  [i915#8668]: https://gitlab.freedesktop.org/drm/intel/issues/8668
  [i915#8809]: https://gitlab.freedesktop.org/drm/intel/issues/8809
  [i915#8841]: https://gitlab.freedesktop.org/drm/intel/issues/8841
  [i915#9243]: https://gitlab.freedesktop.org/drm/intel/issues/9243
  [i915#9270]: https://gitlab.freedesktop.org/drm/intel/issues/9270
  [i915#9274]: https://gitlab.freedesktop.org/drm/intel/issues/9274
  [i915#9278]: https://gitlab.freedesktop.org/drm/intel/issues/9278


Build changes
-------------

  * Linux: CI_DRM_13602 -> Trybot_123335v1

  CI-20190529: 20190529
  CI_DRM_13602: f095f97b2060f654211f8acf213c3606ef6eb6d1 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_7469: b367c5a34e6198074dfe220437b234441d3b3c5d @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Trybot_123335v1: f095f97b2060f654211f8acf213c3606ef6eb6d1 @ git://anongit.freedesktop.org/gfx-ci/linux


### Linux commits

c2e0de125285 drm/i915: Fix pic_width DSC readout
907e9f8cf784 drm/i915: Fix FEC state dump
41d1da20c5b0 drm/i915/mst: Read out FEC state
7d8cd8483bd7 drm/i915: Query compressed bpp properly using correct DPCD and DP Spec info
d7820ad2ca6f drm/i915/dp_mst: Check BW limitations only after all streams are computed
1e3bd5ea5fec drm/i915/dp_mst: Improve BW sharing between MST streams
fb9e0c9d3cd8 drm/i915/dp_mst: Allow DSC only for sink ports of the first branch device
701f754f0b82 drm/i915/dp_mst: Add missing DSC compression disabling
b3c3f6e84d9f drm/i915/dp_mst: Enable DSC decompression if any stream needs this
c3963933e323 drm/i915/dp: Make sure the DSC PPS SDP is disabled whenever DSC is disabled
55f5bf60c560 drm/i915/dp_mst: Program the DSC PPS SDP for each stream
d1af68fd9e85 drm/i915/dp_mst: Add atomic state for all streams on pre-tgl platforms
bf2cf790be29 drm/i915/dp_mst: Fix PBN calculation with FEC overhead
ed49cbfd0554 drm/dp_mst: Swap the order of checking root vs. non-root port BW limitations
1fa394e75abe drm/dp_mst: Factor out a helper to check the atomic state of a topology manager
a1dfc359c01b drm/dp_mst: Add helper to determine if an MST port is downstream of another port
e0f3d940b2c9 drm/dp_mst: Add a way to calculate PBN values with FEC overhead
192bf857e967 drm/dp_mst: Fix fractional bpp scaling in drm_dp_calc_pbn_mode()
2fabfd61d66a drm/i915/fdi: Improve FDI BW sharing between pipe B and C
39db0cf031f7 drm/i915: Factor out a helper to check/compute all the CRTC states
f0ee1d162340 drm/i915: Add helper to modeset a set of pipes
30742a214dcb drm/i915/dp: Limit the output link bpp in DSC mode
6e7097fb38ec drm/i915/dp: Update the link bpp limits for DSC mode
fe1d4767a363 drm/i915/dp: Skip computing a non-DSC link config if DSC is needed
bb5345d93319 drm/i915/dp: Track the pipe and link bpp limits separately
33db348bda35 drm/i915/dp: Factor out helpers to compute the link limits

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_123335v1/index.html
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