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, 3840x2400 60hz
* 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
* Samsung ATNA60YV02-0 3840x2400 60Hz OLED eDP
The patchset consists of the amd-staging-drm-next branch (Head commit ->
c9c3b6a85b346a8aba4b4009c2cd66a37e6bc0b9 -> drm/amdgpu/sdma: Fix executing
duplicate commands after recovery on SDMA v4.4.2) with new patches added on top
of it.
Tested on Ubuntu 26.04, on Gnome Wayland.
Tested-by: Dan Wheeler <[email protected]>
Thank you,
Dan Wheeler
Sr. Technologist | AMD
SW Display
------------------------------------------------------------------------------------------------------------------
1 Commerce Valley Dr E, Thornhill, ON L3T 7X6
amd.com
-----Original Message-----
From: Zhang, George <[email protected]>
Sent: Wednesday, September 16, 2026 1:51 PM
To: [email protected]
Cc: Wentland, Harry <[email protected]>; Li, Sun peng (Leo)
<[email protected]>; Pillai, Aurabindo <[email protected]>; Li, Roman
<[email protected]>; Lin, Wayne <[email protected]>; Chung, ChiaHsuan (Tom)
<[email protected]>; Zuo, Jerry <[email protected]>; Wheeler, Daniel
<[email protected]>; Wu, Ray <[email protected]>; LIPSKI, IVAN
<[email protected]>; Hung, Alex <[email protected]>; Lin, Ping Lei
<[email protected]>; Chen, Chen-Yu <[email protected]>; Zhang, George
<[email protected]>
Subject: [PATCH 00/64] DC Patches for September 16, 2026
This DC patchset brings improvements in multiple areas. In summary, we have:
- Increased KUnit coverage
- Reverts a patch causing regression on DCN42
- Fixes for cursor
- Imporvements for ABM
Alex Hung (33):
drm/amd/display: Select KUnit helpers
drm/amd/display: Fold blending tests into two cases
drm/amd/display: Fold universal overlay format test
drm/amd/display: Fold plane modifier list tests
drm/amd/display: Fold modifier append tests
drm/amd/display: Fold GFX9 tiling info tests
drm/amd/display: Fold GFX6-8 tiling and modifier tests
drm/amd/display: Fold DCC validation tests
drm/amd/display: Fold DCC block mode tests
drm/amd/display: Fold plane scaling and cursor tests
drm/amd/display: Fold plane state check tests
drm/amd/display: Fix amdgpu_dm's kernel-doc warnings
drm/amd/display: Test EDID helper paths
drm/amd/display: Test AUX transfer paths
drm/amd/display: Test MST topology start
drm/amd/display: Test unassigned OTG CRTC lookup
drm/amd/display: Test VRR pageflip completion
drm/amd/display: Test HPD RX offload work branches
drm/amd/display: Test HDMI HPD debounce re-detect
drm/amd/display: Test HPD handler HDCP and detect
drm/amd/display: Test HPD RX downstream handling
drm/amd/display: Drop redundant amdgpu_dm_irq tests
drm/amd/display: Fix KUnit connector warnings
drm/amd/display: Fix KUnit CRTC warnings
drm/amd/display: Fix KUnit cursor warning
drm/amd/display: Fix KUnit VRR warnings
drm/amd/display: Fix KUnit helper warnings
drm/amd/display: Fix KUnit IRQ warnings
drm/amd/display: Fix KUnit MST warnings
drm/amd/display: Fix KUnit DM warnings
drm/amd/display: Fix KUnit writeback warnings
drm/amd/display: Fix KUnit checkpatch warnings
drm/amd/display: Fix LSDMA divide by zero
Alvin Lee (3):
drm/amd/display: Enable double buffering for DSCCLK updates
drm/amd/display: Wait response should be based on fw_based_mclk_switch
drm/amd/display: Re-enable P-State message to SMU
Austin Zheng (1):
drm/amd/display: Add Back Unified CalculateFlipSchedule
Dillon Varone (1):
drm/amd/display: Add more diagnostic logs for DMU
Fangzhi Zuo (1):
drm/amd/display: Restore FreeSync VCP code check for HDMI/PCON sinks
Huang, Leon (1):
drm/amd/display: Forward periodic ABM keep-alive scenario to DMU
Ivan Lipski (3):
drm/amd/display: Expose 3 overlay planes on DCN6
drm/amd/display: Remove DCN6 DCFCLK num assert
drm/amd/display: Resync cursor cache after offload abort on DCN60
Matthew Stewart (1):
drm/amd/display: Fix DCN42B plane alpha
Nicholas Kazlauskas (1):
drm/amd/display: Fix missing gaps for link lock with inbox0
Piotr Maziarz (5):
drm/amd/display: Refactor DPP_PROGRAM_UPSP to drop pipe_ctx
drm/amd/display: Remove phantom SW state ops from block sequence
drm/amd/display: fix cursor refactor fallout and sync UT headers
drm/amd/display: clamp cursor hotspot at the register write
drm/amd/display: Rename build_cursor_position to
dcn10_build_cursor_pos_update_params
Rafal Ostrowski (2):
drm/amd/display: Drop pipe_ctx from hwss block sequence operations
drm/amd/display: refactor hwss SET_CURSOR_POSITION block sequence
Taimur Hassan (2):
drm/amd/display: [FW Promotion] Release 0.1.76.0
drm/amd/display: Promote DC to 3.2.399
Tony Cheng (9):
drm/amd/display: add SPDX-License-Identifier
drm/amd/display: Add inst field to struct hubbub
drm/amd/display: Add inst field to struct clk_mgr
drm/amd/display: Add inst field to struct abm
drm/amd/display: Add inst field to struct dmub_psr
drm/amd/display: Add inst field to struct dmub_replay
drm/amd/display: Add inst field to struct pg_cntl
drm/amd/display: Add inst field to encoder structs
drm/amd/display: Add inst field to clock_source and dio
Tony Qi (1):
drm/amd/display: Revert "request DMUB HW cursor offload"
drivers/gpu/drm/amd/display/Kconfig | 3 +-
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 10 -
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 7 +-
.../display/amdgpu_dm/amdgpu_dm_connector.c | 6 +
.../drm/amd/display/amdgpu_dm/amdgpu_dm_irq.h | 9 +
.../display/amdgpu_dm/amdgpu_dm_mst_types.h | 2 +-
.../amd/display/amdgpu_dm/amdgpu_dm_plane.c | 1 +
.../amd/display/amdgpu_dm/tests/.kunitconfig | 1 -
.../tests/amdgpu_dm_connector_test.c | 64 +-
.../amdgpu_dm/tests/amdgpu_dm_crtc_test.c | 50 +-
.../amdgpu_dm/tests/amdgpu_dm_cursor_test.c | 4 +
.../amdgpu_dm/tests/amdgpu_dm_freesync_test.c | 22 +
.../amdgpu_dm/tests/amdgpu_dm_helpers_test.c | 250 ++
.../amdgpu_dm/tests/amdgpu_dm_irq_test.c | 1066 +++++----
.../tests/amdgpu_dm_mst_types_test.c | 9 +
.../amdgpu_dm/tests/amdgpu_dm_plane_test.c | 2036 +++++------------
.../amdgpu_dm/tests/amdgpu_dm_services_test.c | 2 +-
.../display/amdgpu_dm/tests/amdgpu_dm_test.c | 43 +-
.../amdgpu_dm/tests/amdgpu_dm_wb_test.c | 4 +
.../dc/clk_mgr/dcn401/dcn401_clk_mgr.c | 1 +
.../display/dc/clk_mgr/dcn42/dcn42_clk_mgr.c | 7 +-
.../dc/clk_mgr/dcn42b/dcn42b_clk_mgr.c | 3 +-
.../drm/amd/display/dc/clk_mgr/dcn60/dalsmc.h | 3 +-
.../display/dc/clk_mgr/dcn60/dcn60_clk_mgr.c | 4 +-
.../dc/clk_mgr/dcn60/dcn60_clk_mgr_smu_msg.c | 36 +-
drivers/gpu/drm/amd/display/dc/core/dc.c | 4 +-
.../drm/amd/display/dc/core/dc_hw_sequencer.c | 301 +--
.../gpu/drm/amd/display/dc/core/dc_resource.c | 6 +-
.../gpu/drm/amd/display/dc/core/dc_stream.c | 23 +-
drivers/gpu/drm/amd/display/dc/dc.h | 2 +-
drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 134 +-
drivers/gpu/drm/amd/display/dc/dc_hw_types.h | 3 +
drivers/gpu/drm/amd/display/dc/dc_types.h | 2 +
.../amd/display/dc/dccg/dcn20/dcn20_dccg.h | 4 +
.../amd/display/dc/dccg/dcn60/dcn60_dccg.c | 4 +
.../amd/display/dc/dccg/dcn60/dcn60_dccg.h | 4 +
drivers/gpu/drm/amd/display/dc/dce/dce_abm.c | 2 +
.../drm/amd/display/dc/dce/dce_clock_source.c | 5 +-
drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c | 1 +
.../drm/amd/display/dc/dce/dmub_hw_lock_mgr.c | 10 +-
drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c | 1 +
drivers/gpu/drm/amd/display/dc/dce/dmub_psr.h | 1 +
.../gpu/drm/amd/display/dc/dce/dmub_replay.c | 3 +-
.../gpu/drm/amd/display/dc/dce/dmub_replay.h | 1 +
.../amd/display/dc/dcn301/dcn301_panel_cntl.c | 1 +
.../amd/display/dc/dcn31/dcn31_panel_cntl.c | 1 +
.../drm/amd/display/dc/dio/dcn10/dcn10_dio.c | 1 +
.../display/dc/dio/dcn10/dcn10_link_encoder.c | 2 +
.../dc/dio/dcn10/dcn10_stream_encoder.c | 2 +
.../display/dc/dio/dcn20/dcn20_link_encoder.c | 2 +
.../dc/dio/dcn20/dcn20_stream_encoder.c | 2 +
.../dc/dio/dcn30/dcn30_dio_link_encoder.c | 2 +
.../dc/dio/dcn30/dcn30_dio_stream_encoder.c | 2 +
.../dc/dio/dcn301/dcn301_dio_link_encoder.c | 2 +
.../dc/dio/dcn31/dcn31_dio_link_encoder.c | 2 +
.../dc/dio/dcn314/dcn314_dio_stream_encoder.c | 2 +
.../dc/dio/dcn32/dcn32_dio_link_encoder.c | 2 +
.../dc/dio/dcn32/dcn32_dio_stream_encoder.c | 2 +
.../dc/dio/dcn321/dcn321_dio_link_encoder.c | 2 +
.../dc/dio/dcn35/dcn35_dio_link_encoder.c | 2 +
.../dc/dio/dcn35/dcn35_dio_stream_encoder.c | 2 +
.../dc/dio/dcn401/dcn401_dio_link_encoder.c | 2 +
.../dc/dio/dcn401/dcn401_dio_stream_encoder.c | 1 +
.../dc/dio/dcn42/dcn42_dio_link_encoder.c | 2 +
.../dc/dio/dcn42/dcn42_dio_stream_encoder.c | 2 +
.../dc/dio/dcn60/dcn60_dio_link_encoder.c | 2 +
.../dc/dio/dcn60/dcn60_dio_stream_encoder.c | 2 +
.../dc/dio/virtual/virtual_link_encoder.c | 3 +
.../dc/dio/virtual/virtual_stream_encoder.c | 1 +
.../dml21/inc/bounding_boxes/dcn4_soc_bb.h | 2 +-
.../src/dml2_core/dml2_core_dcn4_calcs.c | 164 +-
.../src/dml2_core/dml2_core_shared_types.h | 3 +
.../alternate_pstate_shared_lib.c | 22 +-
.../dml2_utm_soc_bb/dml2_utm_soc_bb_dcn6.c | 2 -
.../amd/display/dc/dpp/dcn401/dcn401_dpp.h | 2 +
.../amd/display/dc/dpp/dcn401/dcn401_dpp_cm.c | 19 +
.../drm/amd/display/dc/dpp/dcn60/dcn60_dpp.c | 1 +
.../hpo/dcn30/dcn30_hpo_frl_stream_encoder.c | 2 +
.../dcn401/dcn401_hpo_frl_stream_encoder.c | 2 +
.../hpo/dcn42/dcn42_hpo_frl_stream_encoder.c | 2 +
.../hpo/dcn60/dcn60_hpo_frl_stream_encoder.c | 2 +
.../display/dc/hubbub/dcn10/dcn10_hubbub.c | 2 +
.../display/dc/hubbub/dcn20/dcn20_hubbub.c | 2 +
.../display/dc/hubbub/dcn201/dcn201_hubbub.c | 2 +
.../display/dc/hubbub/dcn21/dcn21_hubbub.c | 2 +
.../display/dc/hubbub/dcn30/dcn30_hubbub.c | 2 +
.../display/dc/hubbub/dcn301/dcn301_hubbub.c | 2 +
.../display/dc/hubbub/dcn31/dcn31_hubbub.c | 1 +
.../display/dc/hubbub/dcn32/dcn32_hubbub.c | 2 +
.../display/dc/hubbub/dcn35/dcn35_hubbub.c | 2 +
.../display/dc/hubbub/dcn401/dcn401_hubbub.c | 2 +
.../display/dc/hubbub/dcn42/dcn42_hubbub.c | 2 +
.../display/dc/hubbub/dcn60/dcn60_hubbub.c | 2 +
.../amd/display/dc/hubp/dcn31/dcn31_hubp.c | 1 +
.../amd/display/dc/hubp/dcn401/dcn401_hubp.c | 105 +-
.../amd/display/dc/hubp/dcn401/dcn401_hubp.h | 2 +
.../amd/display/dc/hubp/dcn60/dcn60_hubp.c | 1 +
.../amd/display/dc/hwss/dce110/dce110_hwseq.c | 2 +-
.../amd/display/dc/hwss/dcn10/dcn10_hwseq.c | 20 +-
.../amd/display/dc/hwss/dcn10/dcn10_hwseq.h | 7 +-
.../amd/display/dc/hwss/dcn10/dcn10_init.c | 1 +
.../amd/display/dc/hwss/dcn20/dcn20_hwseq.c | 14 +-
.../amd/display/dc/hwss/dcn20/dcn20_hwseq.h | 3 +-
.../amd/display/dc/hwss/dcn20/dcn20_init.c | 1 +
.../amd/display/dc/hwss/dcn201/dcn201_init.c | 1 +
.../amd/display/dc/hwss/dcn21/dcn21_init.c | 1 +
.../amd/display/dc/hwss/dcn30/dcn30_init.c | 1 +
.../amd/display/dc/hwss/dcn301/dcn301_init.c | 1 +
.../amd/display/dc/hwss/dcn31/dcn31_init.c | 1 +
.../amd/display/dc/hwss/dcn314/dcn314_init.c | 1 +
.../amd/display/dc/hwss/dcn32/dcn32_init.c | 1 +
.../amd/display/dc/hwss/dcn35/dcn35_hwseq.c | 11 +
.../amd/display/dc/hwss/dcn35/dcn35_init.c | 1 +
.../amd/display/dc/hwss/dcn351/dcn351_init.c | 1 +
.../amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 71 +-
.../amd/display/dc/hwss/dcn401/dcn401_hwseq.h | 7 +-
.../amd/display/dc/hwss/dcn401/dcn401_init.c | 1 +
.../amd/display/dc/hwss/dcn42/dcn42_init.c | 1 +
.../amd/display/dc/hwss/dcn50/dcn50_hwseq.c | 6 +-
.../amd/display/dc/hwss/dcn60/dcn60_init.c | 1 +
.../drm/amd/display/dc/hwss/hw_sequencer.h | 75 +-
.../display/dc/hwss/hw_sequencer_private.h | 3 +
.../gpu/drm/amd/display/dc/inc/clock_source.h | 2 +
drivers/gpu/drm/amd/display/dc/inc/hw/abm.h | 1 +
.../gpu/drm/amd/display/dc/inc/hw/clk_mgr.h | 1 +
.../gpu/drm/amd/display/dc/inc/hw/dchubbub.h | 1 +
drivers/gpu/drm/amd/display/dc/inc/hw/dio.h | 1 +
drivers/gpu/drm/amd/display/dc/inc/hw/dpp.h | 2 +
drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h | 2 +
.../drm/amd/display/dc/inc/hw/link_encoder.h | 1 +
.../gpu/drm/amd/display/dc/inc/hw/pg_cntl.h | 1 +
.../amd/display/dc/inc/hw/stream_encoder.h | 2 +
drivers/gpu/drm/amd/display/dc/inc/resource.h | 2 +-
.../amd/display/dc/pg/dcn35/dcn35_pg_cntl.c | 1 +
.../amd/display/dc/pg/dcn42/dcn42_pg_cntl.c | 1 +
.../dc/resource/dcn60/dcn60_resource.c | 6 +-
drivers/gpu/drm/amd/display/dmub/dmub_srv.h | 58 +-
.../gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 53 +-
.../gpu/drm/amd/display/dmub/src/dmub_dcn20.c | 84 +-
.../gpu/drm/amd/display/dmub/src/dmub_dcn20.h | 2 +-
.../gpu/drm/amd/display/dmub/src/dmub_dcn31.c | 94 +-
.../gpu/drm/amd/display/dmub/src/dmub_dcn31.h | 2 +-
.../gpu/drm/amd/display/dmub/src/dmub_dcn32.c | 94 +-
.../gpu/drm/amd/display/dmub/src/dmub_dcn32.h | 2 +-
.../gpu/drm/amd/display/dmub/src/dmub_dcn35.c | 94 +-
.../gpu/drm/amd/display/dmub/src/dmub_dcn35.h | 2 +-
.../drm/amd/display/dmub/src/dmub_dcn401.c | 98 +-
.../drm/amd/display/dmub/src/dmub_dcn401.h | 2 +-
.../gpu/drm/amd/display/dmub/src/dmub_dcn42.c | 98 +-
.../gpu/drm/amd/display/dmub/src/dmub_dcn42.h | 2 +-
.../gpu/drm/amd/display/dmub/src/dmub_dcn60.c | 98 +-
.../gpu/drm/amd/display/dmub/src/dmub_dcn60.h | 2 +-
.../gpu/drm/amd/display/dmub/src/dmub_srv.c | 54 +-
153 files changed, 2963 insertions(+), 2688 deletions(-)
--
2.55.0
