linux.git/drivers/gpu/drm/amd/display/dc/dml, branch v6.6

drm/amd/display: limit the v_startup workaround to ASICs older than DCN3.1

2023-09-07T02:08:26+00:00

Since, calling dcn20_adjust_freesync_v_startup() on DCN3.1+ ASICs
can cause the display to flicker and underflow to occur, we shouldn't
call it for them. So, ensure that the DCN version is less than
DCN_VERSION_3_1 before calling dcn20_adjust_freesync_v_startup().

Cc: stable@vger.kernel.org
Reviewed-by: Fangzhi Zuo 
Signed-off-by: Hamza Mahfooz 
Signed-off-by: Alex Deucher

Revert "drm/amd/display: Remove v_startup workaround for dcn3+"

2023-09-07T02:08:10+00:00

This reverts commit 3a31e8b89b7240d9a17ace8a1ed050bdcb560f9e.

We still need to call dcn20_adjust_freesync_v_startup() for older DCN3+
ASICs. Otherwise, it can cause DP to HDMI 2.1 PCONs to fail to light up.

Cc: stable@vger.kernel.org
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2809
Reviewed-by: Fangzhi Zuo 
Reviewed-by: Harry Wentland 
Signed-off-by: Hamza Mahfooz 
Signed-off-by: Alex Deucher

drm/amd/display: set minimum of VBlank_nom

2023-08-31T21:56:54+00:00

[Why]
If VBlank_nom is too small, it will cause
VStartUP_Start smaller than VBackPorch + VSync width which is an
invalid case for VStartUP_Start and where to send AS-SDP.

[How]
Setup a minimum value to VBlank_nom

Reviewed-by: Reza Amini 
Acked-by: Wayne Lin 
Signed-off-by: ChunTao Tso 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: Correct unit conversion for vstartup

2023-08-31T21:56:30+00:00

[why]
vstartup is calculated to be a large number. it works because
it is within vertical blank, but it reduces region of blank that
can be used for power gating.

[how]
Calculation needs to convert micro seconds to number of
vertical lines.

Reviewed-by: Kazlauskas Nicholas 
Acked-by: Wayne Lin 
Signed-off-by: Reza Amini 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: Roll back unit correction

2023-08-31T21:56:12+00:00

[why]
This Unit correction exposes a Replay corruption.

[how]
This reverts commit:
commit dbd29029c7b5 ("drm/amd/display: Correct unit conversion for vstartup")

Roll back unit conversion until Replay can fix their corruption.

Fixes: dbd29029c7b5 ("drm/amd/display: Correct unit conversion for vstartup")
Reviewed-by: Reza Amini 
Acked-by: Wayne Lin 
Signed-off-by: Ovidiu Bunea 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: implement pipe type definition and adding accessors

2023-08-15T22:08:28+00:00

[why]
There is a lack of encapsulation of pipe connection representation in pipe context.
This has caused many challenging bugs and coding errors with repeated
logic to identify the same pipe type.

[how]
Formally define pipe types and provide getters to identify a pipe type and
find a pipe based on specific requirements. Update existing logic in non dcn
specific files and dcn32 and future versions to use the new accessors.

Reviewed-by: Jun Lei 
Acked-by: Stylon Wang 
Signed-off-by: Wenjing Liu 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: Enable subvp high refresh up to 175hz

2023-08-15T22:08:28+00:00

[Description]
Expand the SubVP policy to include up to 175hz displays
for better power saving on more display configs.

Reviewed-by: Chaitanya Dhere 
Acked-by: Stylon Wang 
Signed-off-by: Alvin Lee 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: Clean up errors in display_mode_vba_30.c

2023-08-09T13:43:09+00:00

Fix the following errors reported by checkpatch:

ERROR: else should follow close brace '}'

Signed-off-by: Ran Sun 
Signed-off-by: Alex Deucher

drm/amd/display: rename acquire_idle_pipe_for_layer to acquire_free_pipe_as_sec_dpp_pipe

2023-08-07T21:14:09+00:00

[why]
Secondary DPP pipes are used for rendering secondary layers of planes.
The name "for layer" doesn't make it obvious. The function is acquiring
a free pipe as secondary dpp pipe only. We rename it so it is more obvious.
In a future follow up change, we want to add functions to acquire free pipe as
opp head pipe or otg master pipe as well. They will have their separate
allocation priority.

Reviewed-by: Jun Lei 
Acked-by: Tom Chung 
Signed-off-by: Wenjing Liu 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: Blocking invalid 420 modes on HDMI TMDS for DCN314

2023-08-07T21:14:09+00:00

[Why & How]
HDMI TMDS does not have ODM support. Filtering 420 modes that
exceed the 4096 FMT limitation on DCN314 will resolve
intermittent corruptions issues.

Reviewed-by: Nicholas Kazlauskas 
Acked-by: Tom Chung 
Signed-off-by: Leo Chen 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher