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3099 commits

Author SHA1 Message Date
Roman Li
80797dd6f1 drm/amd/display: fix counter in wait_for_no_pipes_pending
[Why]
Wait counter is not being reset for each pipe.

[How]
Move counter reset into pipe loop scope.

Signed-off-by: Roman Li <roman.li@amd.com>
Reviewed-by: Zhan Liu <Zhan.Liu@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-05 16:13:15 -04:00
Sung Lee
b95e51eb9f drm/amd/display: Update DCN2.1 DV Code Revision
[WHY & HOW]
There is a problem in hscale_pixel_rate, the bug
causes DCN to be more optimistic (more likely to underflow)
in upscale cases during prefetch.
This commit ports the fix from DV code to address these issues.

Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-05 16:07:02 -04:00
Daniel Kolesa
59dfb0c64d drm/amd/display: work around fp code being emitted outside of DC_FP_START/END
The dcn20_validate_bandwidth function would have code touching the
incorrect registers emitted outside of the boundaries of the
DC_FP_START/END macros, at least on ppc64le. Work around the
problem by wrapping the whole function instead.

Signed-off-by: Daniel Kolesa <daniel@octaforge.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.6.x
2020-05-01 09:24:40 -04:00
Michel Dänzer
f33a6dec4e drm/amdgpu/dc: Use WARN_ON_ONCE for ASSERT
Once should generally be enough for diagnosing what lead up to it,
repeating it over and over can be pretty annoying.

Signed-off-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-05-01 09:24:40 -04:00
Aric Cyr
b2a7b0ce07 drm/amd/display: Use cursor locking to prevent flip delays
[Why]
Current locking scheme for cursor can result in a flip missing
its vsync, deferring it for one or more vsyncs.  Result is a
potential for stuttering when cursor is moved.

[How]
Use cursor update lock so that flips are not blocked while cursor
is being programmed.

Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-28 16:45:14 -04:00
Sung Lee
668a6741f8 drm/amd/display: Update downspread percent to match spreadsheet for DCN2.1
[WHY]
The downspread percentage was copied over from a previous version
of the display_mode_lib spreadsheet. This value has been updated,
and the previous value is too high to allow for such modes as
4K120hz. The new value is sufficient for such modes.

[HOW]
Update the value in dcn21_resource to match the spreadsheet.

Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-28 16:44:36 -04:00
Nicholas Kazlauskas
fdfd2a8585 drm/amd/display: Defer cursor update around VUPDATE for all ASIC
[Why]
Fixes the following scenario:

- Flip has been prepared sometime during the frame, update pending
- Cursor update happens right when VUPDATE would happen
- OPTC lock acquired, VUPDATE is blocked until next frame
- Flip is delayed potentially infinitely

With the igt@kms_cursor_legacy cursor-vs-flip-legacy test we can
observe nearly *13* frames of delay for some flips on Navi.

[How]
Apply the Raven workaround generically. When close enough to VUPDATE
block cursor updates from occurring from the dc_stream_set_cursor_*
helpers.

This could perhaps be a little smarter by checking if there were
pending updates or flips earlier in the frame on the HUBP side before
applying the delay, but this should be fine for now.

This fixes the kms_cursor_legacy test.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-28 16:44:13 -04:00
Dmytro Laktyushkin
6eb3f7da3c drm/amd/display: fix rn soc bb update
Currently RN SOC bounding box update assumes we will get at least
2 clock states from SMU. This isn't always true and because of special
casing on first clock state we end up with low disp, dpp, dsc and phy
clocks.

This change removes the special casing allowing the first state to
acquire correct clocks.

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-28 16:43:13 -04:00
Dmytro Laktyushkin
3159d41db3 drm/amd/display: check if REFCLK_CNTL register is present
Check before programming the register since it isn't present on
all IPs using this code.

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-28 16:42:45 -04:00
Xiaodong Yan
718a5569b6 drm/amd/display: blank dp stream before re-train the link
[Why]
When link loss happened, monitor can not light up if only re-train the
link.

[How]
Blank all the DP streams on this link before re-train the link, and then
unblank the stream

Signed-off-by: Xiaodong Yan <Xiaodong.Yan@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-24 09:41:31 -04:00
Aurabindo Pillai
933fe2cbf2 drm/amd/display: DispalyPort: Write OUI only if panel supports it
[why]
Organizational Unit Identifier register is optional, and its
presence is published via Down Stream Port Count register.
Writing this register when not available will result in errors

[how]
Read this register and continue writing OUI only if the panel
has the support advertised.

Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-24 09:41:31 -04:00
Michael Strauss
72f5b5a308 drm/amd/display: Check for null fclk voltage when parsing clock table
[WHY]
In cases where a clock table is malformed such that fclk entries have
frequencies but not voltages listed, we don't catch the error and set
clocks to 0 instead of using hardcoded values as we should.

[HOW]
Add check for clock tables fclk entry's voltage as well

Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2020-04-07 14:22:10 -04:00
Joshua Aberback
6dbebf4da3 drm/amd/display: Acknowledge wm_optimized_required
[Why]
If dc->clk_mgr->funcs->are_clock_states_equal is set, then
wm_optimized_required is never checked. In that case, when going from a
higher mode to a lower mode, wm_optimized_required remains true until
the next mode change.

[How]
 - move from else-if to unconditional or

Signed-off-by: Joshua Aberback <joshua.aberback@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-07 14:21:22 -04:00
Nicholas Kazlauskas
d243b6ffde drm/amd/display: Make cursor source translation adjustment optional
[Why]
In some usecases, like tiled display, the stream and plane configuration
can be setup in a way where the caller expects DAL to perform the
clipping, eg:

P0:
src_rect(0, 0, w, h)
dst_rect(0, 0, w, h)

P1:
src_rect(w, 0, w, h)
dst_rect(0, 0, w, h)

Cursor is enabled on both streams with the same position.

This can result in double cursor on tiled display, even though this
behavior is technically correct from the DC interface point of view.

We need a mechanism to control this dynamically.

[How]
This is something that should live in the DM layer based on detection
of the specified configuration but it's not something that we really
have enough information to deal with today.

Add a flag to the cursor position state that specifies whether we
want DC to do the translation or not and make it opt-in and let
the DM decide when to do it.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-07 14:20:45 -04:00
Nicholas Kazlauskas
3bae20137c drm/amd/display: Calculate scaling ratios on every medium/full update
[Why]
If a plane isn't being actively enabled or disabled then DC won't
always recalculate scaling rects and ratios for the primary plane.

This results in only a partial or corrupted rect being displayed on
the screen instead of scaling to fit the screen.

[How]
Add back the logic to recalculate the scaling rects into
dc_commit_updates_for_stream since this is the expected place to
do it in DC.

This was previously removed a few years ago to fix an underscan issue
but underscan is still functional now with this change - and it should
be, since this is only updating to the latest plane state getting passed
in.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-07 14:20:45 -04:00
Nicholas Kazlauskas
3efcaf77de drm/amd/display: Program viewport when source pos changes for DCN20 hw seq
[Why]
For medium updates that change nothing but the source rect position
the viewport doesn't change on DCN20.

We're missing the check for the position update bit that was there in
the DCN10 hardware sequencer.

[How]
Check the position bit along with the scaling bit like we were doing
with DCN20.

We shouldn't actually hit a case where context != current_state in
our programming/commit model but guard against it anyway since it was
guarded for the other bits.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Zhan Liu <Zhan.Liu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-07 14:20:45 -04:00
Nicholas Kazlauskas
56b922c106 drm/amd/display: Fix incorrect cursor pos on scaled primary plane
[Why]
Cursor pos is correctly adjusted from DC side for source rect offset
on DCN ASIC, but only on the overlay.

This is because DM places offsets the cursor for primary planes only
to workaround missing code in DCE for the adjustment we're now correctly
doing in DC for DCN ASIC.

[How]
Drop the adjustment for source rect from the DM side of things and put
the code where it actually belongs - in DC on the pipe level.

This matches what we do for DCN now.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Zhan Liu <Zhan.Liu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-07 14:20:45 -04:00
Eric Yang
a754d13203 drm/amd/display: change default pipe_split policy for DCN1
[Why]
Changing policy to dynamic will allow 4k multi display configs
to be supported at DPM0

Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-07 14:20:45 -04:00
Nicholas Kazlauskas
e99acf7d1a drm/amd/display: Translate cursor position by source rect
[Why]
Cursor is drawn as part of the framebuffer for a plane on AMD hardware.
The cursor position on the framebuffer does not change even if the
source rect viewport for the cursor does. This causes the cursor to be
clipped.

The following IGT tests fail as a result of this issue:

- kms_plane_cursor@pipe-*-viewport-size-*

[How]
Offset cursor position by plane source rect viewport. If the viewport
is unscaled then the cursor is now correctly positioned on any
plane - primary or overlay.

There is still a hardware limitation for dealing with the cursor size
being incorrectly scaled but that's not something we can address.

Add some documentation explaining some of this in the code while we're
at it.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Zhan Liu <Zhan.Liu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-07 14:20:45 -04:00
Isabel Zhang
346d8a0a3c drm/amd/display: Update stream adjust in dc_stream_adjust_vmin_vmax
[Why]
After v_total_min and max are updated in vrr structure, the changes are
not reflected in stream adjust. When these values are read from stream
adjust it does not reflect the actual state of the system.

[How]
Set stream adjust values equal to vrr adjust values after vrr adjust
values are updated.

Signed-off-by: Isabel Zhang <isabel.zhang@amd.com>
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-07 14:20:45 -04:00
Dmytro Laktyushkin
c42656f8fc drm/amd/display: Fix dcn21 num_states
[Why]
DML expects num_states to exclude the duplicate state.

[How]
Set num_states to correct value to prevent array off-by-one error.  Also
refactor max clock level code for diags.

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-31 12:26:15 -04:00
Stylon Wang
5c41c023f8 drm/amd/display: Support plane level CTM
[Why]
CTM was only supported at CRTC level and we need color space conversion
in linear space at plane level.

[How]
- Add plane-level CTM to dc interface
- Program plane-level CTM in DCN

Signed-off-by: Stylon Wang <stylon.wang@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-31 12:26:14 -04:00
Yongqiang Sun
9941b81290 drm/amd/display: Not doing optimize bandwidth if flip pending.
[Why]
In some scenario like 1366x768 VSR enabled connected with a 4K monitor
and playing 4K video in clone mode, underflow will be observed due to
decrease dppclk when previouse surface scan isn't finished

[How]
In this use case, surface flip is switching between 4K and 1366x768,
1366x768 needs smaller dppclk, and when decrease the clk and previous
surface scan is for 4K and scan isn't done, underflow will happen.  Not
doing optimize bandwidth in case of flip pending.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-31 12:26:14 -04:00
Nicholas Kazlauskas
8f43965f79 drm/amd/display: Use double buffered DRR timing update by default
[Why]
For some monitors extreme flickering can occur while using LFC for if
we're not doing the DRR timing update for V_TOTAL_MIN / V_TOTAL_MAX at
the DP start of frame.

Hardware can default to any time in the frame which isn't the behavior
we want.

[How]
Add a new function for setting the double buffering mode for DRR timing.

Default to DP start of frame double buffering on timing generator init.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-31 12:26:14 -04:00
Stylon Wang
cbec6477ce drm/amd/display: Support P010 pixel format
[Why]
P010 pixel format is not declared as supported in DRM and DM.

[How]
Add P010 format to the support list presented to DRM and checked in DM

Signed-off-by: Stylon Wang <stylon.wang@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-31 12:26:14 -04:00
Eric Bernstein
33eef72f8a drm/amd/display: Update function to get optimal number of taps
[Why]
Diagnostics scaling test failing to set required number of vertical taps
in 4:2:0 surface case

[How]
In dpp3_get_optimal_number_of_taps() need to use LB_MEMORY_CONFIG_3 for
4:2:0 surface case. In resource_build_scaling_params() make sure to also
set plane res alpha enable based on updated surface state

Signed-off-by: Eric Bernstein <eric.bernstein@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-31 12:26:14 -04:00
Dmytro Laktyushkin
7287a67578 drm/amd/display: add on demand pipe merge logic for dcn2+
Adds logic that will determine if pipes need merging during validation.

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Chris Park <Chris.Park@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Yongqiang Sun
eb1b4573c0 drm/amd/display: DPP DTO isn't update properly.
[Why]
before update dpp DTO, we check dppclks in context to determine it is
changed or not, but dppclks in context will be updated anyways after
flip is done, so compare dppclks in context will always get an equal
result.

[How]
Add pipe dpp clks in dccg and compare values between dccg and context.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Nikola Cornij
2f752e914d drm/amd/display: Remove connect DIG FE to its BE during timing programming
[why]
Causes regression with MST DSC displays not lighting up after DPMS

[how]
Revert commit 8cc426d79b ("drm/amd/display: Program DSC during timing programming")

Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Yongqiang Sun
0aa63a333d drm/amd/display: combine watermark change and clock change for update clocks.
[Why]
underflow happened when playing video on 1366x768 + 4K clone mode due to
incorrect handle watermark change flag and lower down clocks to early.

[How]
Check watermark change flag when decide doing optimized, and check
optimized required flag to do clock update.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Charlene Liu
18952c8e5f drm/amd/display: guard DPPHY_Internal_ctrl
[why]
this register not exist in some asic, based on request remove this from
dc.

[how]
add guard for sanization.

Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Martin Tsai
c38cc6770f drm/amd/display: differentiate vsc sdp colorimetry use criteria between MST and SST
[Why]
We should check MST BU support capability on output port before building
vsc info packet.

[How]
Add a new definition for port and sink capability check.

Signed-off-by: Martin Tsai <martin.tsai@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Sung Lee
a19620ea91 drm/amd/display: Program self refresh control register on boot
[WHY]
In headless boot cases, self refresh control registers are not
programmed on boot. In certain hybrid graphics cases this may cause
cstate entering to get blocked causing a hang.

[HOW]
Program self refresh control register on boot.

Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Wyatt Wood
8defa1a3f7 drm/amd/display: Fallback to dmcub for psr when dmcu is disabled
[Why]
We want to be able to enable/disable psr on dmcub and fallback to dmcu
when necessary.

[How]
Use dc config option to do so.

Signed-off-by: Wyatt Wood <wyatt.wood@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Wyatt Wood
f0a574c9df drm/amd/display: Set disable_dmcu flag properly per asic
[Why]
The default value for disable_dmcu is true, even for asics that require
dmcu.

[How]
Set flag properly per asic.

Signed-off-by: Wyatt Wood <wyatt.wood@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Nicholas Kazlauskas
c803bb4eb9 drm/amd/display: Pass triplebuffer surface flip flags down to plane state
[Why]
A "dcn20_program_front_end_for_ctx" warning is observed on Renoir.

Since the resource definition doesn't explicitly disable triplebuffer
flips like Navi10 DC actually attempts to go and setup triplebuffering
even when we pass in false to the plane state.

If we hit a full update after triplebuffering has been setup we see the
assertion since we don't expect full updates while performing
triplebuffer flips.

Normally this would get reset back to false whne we pass in the new
plane state, but since we never actually copy the flag when doing
surface updates this doesn't happen.

[How]
Copy the flag onto the plane update based on the requested surface
update state.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Dmytro Laktyushkin
cd3e05a795 drm/amd/display: fix split threshold w/a to work with mpo
Right now only stream count is used to avoid split.  This change updates
the W/A to check plane count instead.

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Yongqiang Sun
1ef893e274 drm/amd/display: workaround for HDMI hotplug in DPMSOFF state
[Why]
When hotplug a HDMI monitor during entering S0i3 or DPMSOFF state due to
entering infinite loop when calling vbios to program pixel clocks. In
this scenario, pll is enabled but phy is not, and there is not a
programing guide for this case.

[How]
Before we having the proper programing guide, before disable pll, doing
a phy enable and disable to avoid the issue.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Jerry (Fangzhi) Zuo
ef65c702d4 drm/amd/display: Fix test pattern color space inconsistency for Linux
[why]
When reprogram MSA with updated color space, the test color space shows
inconsistency. Linux has separate routine to set up test pattern color
space, but it fails to configure RGB.

[How]
Add RGB to test pattern.

Fixes: 43563bc2e6 ("drm/amd/display: update MSA and VSC SDP on video test pattern request")
Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:04 -04:00
Sung Lee
9819099739 drm/amd/display: Revert "DCN2.x Do not program DPPCLK if same value"
[WHY]
Not programming dto with same values causes test failures in DCN2 diags
DPP tests.

[HOW]
This reverts commit 1b53e73323.

Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-19 00:03:03 -04:00
Mario Kleiner
473e3f7720 drm/amd/display: Add link_rate quirk for Apple 15" MBP 2017
This fixes a problem found on the MacBookPro 2017 Retina panel:

The panel reports 10 bpc color depth in its EDID, and the
firmware chooses link settings at boot which support enough
bandwidth for 10 bpc (324000 kbit/sec aka LINK_RATE_RBR2
aka 0xc), but the DP_MAX_LINK_RATE dpcd register only reports
2.7 Gbps (multiplier value 0xa) as possible, in direct
contradiction of what the firmware successfully set up.

This restricts the panel to 8 bpc, not providing the full
color depth of the panel on Linux <= 5.5. Additionally, commit
'4a8ca46bae8a ("drm/amd/display: Default max bpc to 16 for eDP")'
introduced into Linux 5.6-rc1 will unclamp panel depth to
its full 10 bpc, thereby requiring a eDP bandwidth for all
modes that exceeds the bandwidth available and causes all modes
to fail validation -> No modes for the laptop panel -> failure
to set any mode -> Panel goes dark.

This patch adds a quirk specific to the MBP 2017 15" Retina
panel to override reported max link rate to the correct maximum
of 0xc = LINK_RATE_RBR2 to fix the darkness and reduced display
precision.

Please apply for Linux 5.6+ to avoid regressing Apple MBP panel
support.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-13 11:52:35 -04:00
Dan Carpenter
9543a9c3e2 drm/amd/display: Possible divide by zero in set_speed()
If "speed" is zero then we use it as a divisor to find "prescale".  It's
better to move the check for zero to the very start of the function.

Fixes: 9eeec26a13 ("drm/amd/display: Refine i2c frequency calculating sequence")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-13 11:52:35 -04:00
Dan Carpenter
a5437e0b81 drm/amd/display: clean up a condition in dmub_psr_copy_settings()
We can remove the NULL check for "res_ctx" and
"res_ctx->pipe_ctx[i].stream->link".  Also it's nicer to align the
conditions using spaces so I re-indented a bit.

Longer explanation: The "res_ctx" pointer points to an address in the
middle of a struct so it can't be NULL.  For
"res_ctx->pipe_ctx[i].stream->link" we know that it is equal to "link"
and "link" is non-NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-13 11:52:35 -04:00
Joe Perches
ded33f368c AMD DISPLAY CORE: Use fallthrough;
Convert the various uses of fallthrough comments to fallthrough;

Done via script
Link: https://lore.kernel.org/lkml/b56602fcf79f849e733e7b521bb0e17895d390fa.1582230379.git.joe@perches.com/

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-13 11:52:34 -04:00
Stanley.Yang
c8d6396b00 drm/amd/display: fix typos for dcn20_funcs and dcn21_funcs struct
In dcn20_funcs and dcn21_funcs struct, the member ".dsc_pg_control = NULL"
should be removed due to .dsc_pg_control be assigned to dcn20_dsc_pg_control.

Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-13 11:52:34 -04:00
Aly-Tawfik
6cc47f3f96 drm/amdgpu/display: Fix Pollock Variant Detection
Problem Description:
Currently we are checking internal fused rev id with pci rev id. However, fused
internal rev id is the same on all raven2 parts (in which Dali and Pollock were
based on too), thus Pollock detection fails

Fix:
use the pci rev to preform the detection for bandwidth calculations.

Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Aly-Tawfik <altawfik@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-09 13:51:03 -04:00
Melissa Wen
aec0f262f3 drm/amd/display: dcn20: remove an unused function
The dpp2_get_optimal_number_of_taps function is never used. Removing
just for code cleaning up.

Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-09 13:50:39 -04:00
Aric Cyr
2f11c7c043 drm/amd/display: 3.2.76
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-09 13:50:30 -04:00
Wenjing Liu
e6b11b43cd drm/amd/display: separate FEC capability from fec debug flag
[why]
FEC capability query should not be affected by debugging decision on
whether to disable FEC. We should not determine if display supports FEC
by checking debug option.

Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Ashley Thomas <Ashley.Thomas2@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-09 13:50:23 -04:00
Martin Leung
e592e85f33 drm/amd/display: writing stereo polarity register if swapped
[why]
on some displays that prefer swapped polarity we were seeing L/R images
swapped because OTG_STEREO_SYNC_OUTPUT_POLARITY would always be mapped
to 0

[how]
fix initial dal3 implementation to properly update the polarity field
according to the crtc_stereo_flags (same as
OTG_STEREO_EYE_FLAG_POLARITY)

Signed-off-by: Martin Leung <martin.leung@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-03-09 13:50:15 -04:00