[PATCH 00/13] DC Patches June 16, 2025

Wheeler, Daniel Daniel.Wheeler at amd.com
Mon Jun 23 13:11:40 UTC 2025 

[Public]

Hi all,

This week this patchset was tested on 4 systems, two dGPU and two APU based, and tested across multiple display and connection types.

APU
        * Single Display eDP -> 1080p 60hz, 1920x1200 165hz
        * Single Display DP (SST DSC) -> 4k144hz, 4k240hz
        * Multi display -> eDP + DP/HDMI/USB-C -> 1080p 60hz eDP + 4k 144hz, 4k 240hz (Includes USB-C to DP/HDMI adapters)
        * Thunderbolt -> LG Ultrafine 5k
        * MST DSC -> Cable Matters 101075 (DP to 3x DP) with 3x 4k60hz displays, HP Hook G2 with 2x 4k60hz displays
        * USB 4 -> HP Hook G4, Lenovo Thunderbolt Dock, both with 2x 4k60hz DP and 1x 4k60hz HDMI displays
        * SST PCON -> Club3D CAC-1085 + 1x 4k 144hz, FRL3, at a max resolution supported by the dongle of 4k 120hz YUV420 12bpc.
        * MST PCON -> 1x 4k 144hz, FRL3, at a max resolution supported by the adapter of 4k 120hz RGB 8bpc.

DGPU
        * Single Display DP (SST DSC) -> 4k144hz, 4k240hz
        * Multiple Display DP -> 4k240hz + 4k144hz
        * MST (Startech MST14DP123DP [DP to 3x DP] and 2x 4k 60hz displays)
        * MST DSC (with Cable Matters 101075 [DP to 3x DP] with 3x 4k60hz displays)

The testing is a mix of automated and manual tests. Manual testing includes (but is not limited to)
        * Changing display configurations and settings
        * Video/Audio playback
        * Benchmark testing
        * Suspend/Resume testing
        * Feature testing (Freesync, HDCP, etc.)

Automated testing includes (but is not limited to)
        * Script testing (scripts to automate some of the manual checks)
        * IGT testing

The testing is mainly tested on the following displays, but occasionally there are tests with other displays
        * Samsung G8 Neo 4k240hz
        * Samsung QN55QN95B 4k 120hz
        * Acer XV322QKKV 4k144hz
        * HP U27 4k Wireless 4k60hz
        * LG 27UD58B 4k60hz
        * LG 32UN650WA 4k60hz
        * LG Ultrafine 5k 5k60hz
        * AU Optronics B140HAN01.1 1080p 60hz eDP
        * AU Optronics B160UAN01.J 1920x1200 165hz eDP

The patchset consists of the amd-staging-drm-next branch (Head commit - 77fce53066ba8b9e4c5d3b93349068a4ab109ca9 -> drm/amd/display: Promote DC to 3.2.338) with new patches added on top of it.

Tested on Ubuntu 24.04.3, on Wayland and X11, using KDE Plasma and Gnome.

Tested-by: Daniel Wheeler <daniel.wheeler at amd.com>

Thank you,

Dan Wheeler
Sr. Technologist  |  AMD
SW Display
------------------------------------------------------------------------------------------------------------------
1 Commerce Valley Dr E, Thornhill, ON L3T 7X6
Facebook |  Twitter |  amd.com


-----Original Message-----
From: Fangzhi Zuo <Jerry.Zuo at amd.com>
Sent: Wednesday, June 18, 2025 11:34 AM
To: amd-gfx at lists.freedesktop.org
Cc: Wentland, Harry <Harry.Wentland at amd.com>; Li, Sun peng (Leo) <Sunpeng.Li at amd.com>; Pillai, Aurabindo <Aurabindo.Pillai at amd.com>; Li, Roman <Roman.Li at amd.com>; Lin, Wayne <Wayne.Lin at amd.com>; Chung, ChiaHsuan (Tom) <ChiaHsuan.Chung at amd.com>; Zuo, Jerry <Jerry.Zuo at amd.com>; Wheeler, Daniel <Daniel.Wheeler at amd.com>; Wu, Ray <Ray.Wu at amd.com>; Hung, Alex <Alex.Hung at amd.com>; Zuo, Jerry <Jerry.Zuo at amd.com>
Subject: [PATCH 00/13] DC Patches June 16, 2025

This DC patchset brings improvements in multiple areas.
In summary, we highlight:

* Improve USB4 bandwidth validation
* dml clock calcuation with EQU Prefetch included
* Tweaking udelay time to fix "failed to blank crtc!" error
* Add LSDMA support to DMUB
* Fix Coverity issue

Cc: Daniel Wheeler <daniel.wheeler at amd.com>

Alex Hung (1):
  drm/amd/display: Initialize mode_select to 0

Alvin Lee (1):
  drm/amd/display: Removed unnecessary comment

Austin Zheng (2):
  drm/amd/display: Include EQU Prefetch Bandwidth For Bandwidth
    Calculations
  drm/amd/display: DML21 Reintegration

Cruise Hung (1):
  drm/amd/display: Add new DP tunnel bandwidth validation

Fangzhi Zuo (1):
  drm/amd/display: Rewording Mode Validation Result

Ilya Bakoulin (1):
  drm/amd/display: Add num_slices_h to set_dto_dscclk signature

Ostrowski, Rafal (1):
  drm/amd/display: LSDMA support

Ovidiu Bunea (1):
  drm/amd/display: Add DMUB IPS command support for IPS residency tools

Taimur Hassan (2):
  drm/amd/display: [FW Promotion] Release 0.1.16.0
  drm/amd/display: Promote DAL to 3.2.339

Wen Chen (1):
  drm/amd/display: Fix 'failed to blank crtc!'

Weiguang Li (1):
  drm/amd/display: Remove redundant macro of refresh rate

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |   2 +-
 .../gpu/drm/amd/display/dc/core/dc_debug.c    |   2 +
 .../drm/amd/display/dc/core/dc_link_exports.c |   6 +
 drivers/gpu/drm/amd/display/dc/dc.h           |  16 +-
 drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c  | 297 ++++++++++++++----  drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h  |  77 ++++-  drivers/gpu/drm/amd/display/dc/dc_dp_types.h  |  15 +
 drivers/gpu/drm/amd/display/dc/dc_types.h     |   7 +
 .../amd/display/dc/dccg/dcn401/dcn401_dccg.c  |   2 +-
 .../amd/display/dc/dccg/dcn401/dcn401_dccg.h  |   3 +-
 .../dc/dml2/dml21/dml21_translation_helper.c  |   1 -
 .../dml2/dml21/inc/dml_top_dchub_registers.h  |   1 +
 .../dml21/inc/dml_top_display_cfg_types.h     |   2 +
 .../dml21/inc/dml_top_soc_parameter_types.h   |   1 +
 .../display/dc/dml2/dml21/inc/dml_top_types.h |   4 +-
 .../src/dml2_core/dml2_core_dcn4_calcs.c      |  46 +--
 .../src/dml2_core/dml2_core_shared_types.h    |  99 +++++-
 .../dc/dml2/dml21/src/inc/dml2_debug.h        | 149 ++++++++-
 .../amd/display/dc/hwss/dcn20/dcn20_hwseq.c   |   2 +-
 .../amd/display/dc/hwss/dcn32/dcn32_hwseq.c   |   6 +-
 .../gpu/drm/amd/display/dc/inc/core_status.h  |   1 +
 drivers/gpu/drm/amd/display/dc/inc/hw/dccg.h  |   2 +-
 drivers/gpu/drm/amd/display/dc/inc/link.h     |   3 +
 .../gpu/drm/amd/display/dc/link/link_dpms.c   |  10 +-
 .../drm/amd/display/dc/link/link_factory.c    |   1 +
 .../drm/amd/display/dc/link/link_validation.c |  85 ++++-
 .../drm/amd/display/dc/link/link_validation.h |   3 +
 .../display/dc/link/protocols/link_dp_dpia.c  |  15 +-
 .../dc/link/protocols/link_dp_dpia_bw.c       | 169 +++++++---
 .../dc/link/protocols/link_dp_dpia_bw.h       |  27 +-
 .../amd/display/dc/mpc/dcn401/dcn401_mpc.c    |   2 +-
 drivers/gpu/drm/amd/display/dmub/dmub_srv.h   |  10 +-
 .../gpu/drm/amd/display/dmub/inc/dmub_cmd.h   | 101 +++++-
 .../gpu/drm/amd/display/dmub/src/dmub_srv.c   |   4 +
 .../amd/display/modules/freesync/freesync.c   |   2 +-
 35 files changed, 970 insertions(+), 203 deletions(-)

--
2.43.0

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