linux-stable.git/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c, branch v6.12

drm/amd/display: temp w/a for DP Link Layer compliance

2024-10-22T22:11:20+00:00

[Why&How]
Disabling P-State support on full updates for DCN401 results in
introducing additional communication with SMU. A UCLK hard min message
to SMU takes 4 seconds to go through, which was due to DCN not allowing
pstate switch, which was caused by incorrect value for TTU watermark
before blanking the HUBP prior to DPG on for servicing the test request.

Fix the issue temporarily by disallowing pstate changes for compliance
test while test request handler is reworked for a proper fix.

Fixes: 67ea53a4bd9d ("drm/amd/display: Disable DCN401 UCLK P-State support on full updates")
Cc: Mario Limonciello 
Cc: Alex Deucher 
Reviewed-by: Dillon Varone 
Signed-off-by: Aurabindo Pillai 
Signed-off-by: Wayne Lin 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher 
(cherry picked from commit 8a79f7cdbb41bb0ddfd4d7662b4428d4a9d5306d)
Cc: stable@vger.kernel.org

drm/amd/display: Add HDR workaround for specific eDP

2024-10-01T22:10:36+00:00

[WHY & HOW]
Some eDP panels suffer from flicking when HDR is enabled in KDE. This
quirk works around it by skipping VSC that is incompatible with eDP
panels.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3151
Cc: Mario Limonciello 
Cc: Alex Deucher 
Reviewed-by: Rodrigo Siqueira 
Signed-off-by: Alex Hung 
Signed-off-by: Aurabindo Pillai 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher 
(cherry picked from commit 4d4257280d7957727998ef90ccc7b69c7cca8376)
Cc: stable@vger.kernel.org

drm/amd/display: Add DSC Debug Log

2024-08-27T21:55:49+00:00

Add DSC log in each critical routines to facilitate debugging.

Reviewed-by: Rodrigo Siqueira 
Signed-off-by: Fangzhi Zuo 
Signed-off-by: Zaeem Mohamed 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: quality improvements for EASF and ISHARP

2024-07-23T21:07:09+00:00

[Why]
Update coefficients and LUT tables for scaler and sharpener
 to improve quality and support different use cases (SDR/HDR)

[How]
Move scaler coefficients to new file dc_spl_scl_easf_filters.c
Remove older coefficients file dc_sp_scl_filters_old.c
Update default taps for EASF support
Update LLS policy for DON'T CARE case
Update cositing offset from 0.5 to 0.25
Add support to adjust sharpness based on level, use case,
 and scaling ratio ( using discrete levels )
Apply sharpness to all RGB surfaces and both NV12 and P010
 video ( in fullscreen only ).  Upscale and 1:1 ratios only
Enable scaler when sharpening 1:1 ratios
Add support for coefficients that are in S1.10 format
 (convert to S1.12 format)

Reviewed-by: Jun Lei 
Signed-off-by: Jerry Zuo 
Signed-off-by: Samson Tam 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: Remove unnecessary error message

2024-07-01T20:06:53+00:00

[Why]
This error message is unnecessary because returning when aconnector is
uninitialized is the desired outcome during initialization. As well, there
is no equivalent error message for read_dpcd.

Reviewed-by: Aurabindo Pillai 
Signed-off-by: Jerry Zuo 
Signed-off-by: Joshua Aberback 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: Use periodic detection for ipx/headless

2024-06-27T21:10:38+00:00

[WHY]
Hotplug is not detected in headless (no eDP) mode on dcn35x.
With no display dcn35x goes to IPS2 powersaving state where HPD interrupt
is not handled.

[HOW]
Use idle worker thread for periodic detection of HPD in headless mode.

Reviewed-by: Aurabindo Pillai 
Cc: Mario Limonciello 
Cc: Alex Deucher 
Cc: stable@vger.kernel.org
Signed-off-by: Alex Hung 
Signed-off-by: Roman Li 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

Merge tag 'amd-drm-next-6.11-2024-06-22' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

2024-06-27T07:18:49+00:00

amd-drm-next-6.11-2024-06-22:

amdgpu:
- HPD fixes
- PSR fixes
- DCC updates
- DCN 4.0.1 fixes
- FAMS fixes
- Misc code cleanups
- SR-IOV fixes
- GPUVM TLB flush cleanups
- Make VCN less verbose
- ACPI backlight fixes
- MES fixes
- Firmware loading cleanups
- Replay fixes
- LTTPR fixes
- Trap handler fixes
- Cursor and overlay fixes
- Primary plane zpos fixes
- DML 2.1 fixes
- RAS updates
- USB4 fixes
- MALL fixes
- Reserved VMID fix
- Silence UBSAN warnings

amdkfd:
- Misc code cleanups

From: Alex Deucher 
Link: https://patchwork.freedesktop.org/patch/msgid/20240622152523.2267072-1-alexander.deucher@amd.com
Signed-off-by: Dave Airlie

drm/amd/display: Remove redundant null checks

2024-06-19T16:46:21+00:00

The null checks for aconnector and aconnector->dc_link and
stream redundant as they were already dereferenced previously
as reported by Coverity; therefore the null checks are removed.

This fixes 4 REVERSE_INULL issues reported by Coverity.

Reviewed-by: Harry Wentland 
Acked-by: Hamza Mahfooz 
Signed-off-by: Alex Hung 
Signed-off-by: Alex Deucher

Merge tag 'amd-drm-next-6.11-2024-06-07' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

2024-06-11T04:01:55+00:00

amd-drm-next-6.11-2024-06-07:

amdgpu:
- DCN 4.0.x support
- DCN 3.5 updates
- GC 12.0 support
- DP MST fixes
- Cursor fixes
- MES11 updates
- MMHUB 4.1 support
- DML2 Updates
- DCN 3.1.5 fixes
- IPS fixes
- Various code cleanups
- GMC 12.0 support
- SDMA 7.0 support
- SMU 13 updates
- SR-IOV fixes
- VCN 5.x fixes
- MES12 support
- SMU 14.x updates
- Devcoredump improvements
- Fixes for HDP flush on platforms with >4k pages
- GC 9.4.3 fixes
- RAS ACA updates
- Silence UBSAN flex array warnings
- MMHUB 3.3 updates

amdkfd:
- Contiguous VRAM allocations
- GC 12.0 support
- SDMA 7.0 support
- SR-IOV fixes

radeon:
- Backlight workaround for iMac
- Silence UBSAN flex array warnings

UAPI:
- GFX12 modifier and DCC support
  Proposed Mesa changes:
  https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29510
- KFD GFX ALU exceptions
  Proposed ROCdebugger changes:
  https://github.com/ROCm/ROCdbgapi/commit/08c760622b6601abf906f75abbc5e21d9fd425df
  https://github.com/ROCm/ROCgdb/commit/944fe1c1414a68700414e86e32273b6bfa62ba6f
- KFD Contiguous VRAM allocation flag
  Proposed ROCr/HIP changes:
  https://github.com/ROCm/ROCT-Thunk-Interface/commit/f7b4a269914a3ab4f1e2453c2879adb97b5cc9e5
  https://github.com/ROCm/ROCR-Runtime/pull/214/commits/26e8530d05a775872cb06dde6693db72be0c454a
  https://github.com/ROCm/clr/commit/1d48f2a1ab38b632919c4b7274899b3faf4279ff

Signed-off-by: Dave Airlie 
From: Alex Deucher 
Link: https://patchwork.freedesktop.org/patch/msgid/20240607195900.902537-1-alexander.deucher@amd.com

drm/amd/display: Enable copying of bounding box data from VBIOS DMUB

2024-05-29T18:40:40+00:00

Allocate some memory, send the address in chunks to dmub, and finally
ask it to copy the bounding box data into the newly allocated memory.

Signed-off-by: Aurabindo Pillai 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher