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Author SHA1 Message Date
Saaem Rizvi
3e8d74cb12 drm/amd/display: Trigger DIO FIFO resync on commit streams
[WHY]
Currently, there is an intermittent issue where a screen can either go
blank or be corrupted.

[HOW]
To resolve the issue we trigger the ramping logic for DIO FIFO so that
it goes back up to the correct speed.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Saaem Rizvi <syedsaaem.rizvi@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-06-09 10:42:58 -04:00
Hamza Mahfooz
fd73c85076 drm/amd/display: drop unused function set_abm_event()
set_abm_event() is never actually used. So, drop it.

Fixes: b8fe56375f ("drm/amd/display: Refactor ABM feature")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Tom Rix <trix@redhat.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-06-09 10:38:52 -04:00
Sung Lee
738b3469f8 drm/amd/display: Add additional pstate registers to HW state query
[WHY]
These registers would be useful to know when debugging pstate issues.

[HOW]
Add additional registers to hw state query.

Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Sung Lee <sunglee@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-06-09 09:33:55 -04:00
Sung Lee
9c25ab167d drm/amd/display: Add p-state debugging
[WHY]
P-State related issues are fairly common but currently
there is no way to debug these issues after the fact.

[HOW]
Add helpful registers to HW state queries

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Sung Lee <sunglee@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-04-24 18:36:46 -04:00
Leon Huang
b8fe56375f drm/amd/display: Refactor ABM feature
[Why]
Refactor ABM feature and implement inbox command for DMUB.

[How]
Implement the ioctl to send inbox command to DMUB.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Leon Huang <Leon.Huang1@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-04-18 16:28:51 -04:00
Alvin Lee
d170e938f0 drm/amd/display: On clock init, maintain DISPCLK freq
[Description]
- On init if a display is connected, we need to maintain the DISPCLK
  frequency
- Even though DPG_EN=1, the display still requires the correct
  timing or it could cause audio corruption (if DISPCLK freq
  is reduced)
- Read the current DISPCLK freq and request the same value to ensure
  the timing is valid and unchanged
- However, add option to do a full pipe power down (including link)
  which will also avoid audio related issues
	- Disabled for the time being on dcn32

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-04-11 18:03:35 -04:00
Alvin Lee
4ed793083a drm/amd/display: Use per pipe P-State force for FPO
[Description]
*  Pass in pipe index for FPO cmd to DMCUB
- This change will pass in the pipe index for each stream
  that is using FPO
- This change is in preparation to enable FPO + VActive

*  Use per pipe P-State force for FPO
- For FPO, instead of using max watermarks value for P-State disallow,
  use per pipe p-state force instead
- This is in preparation to enable FPO + VActive

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-31 11:18:54 -04:00
Nicholas Kazlauskas
bf224e00a9 drm/amd/display: Fix 4to1 MPC black screen with DPP RCO
[Why]
DPP Root clock optimization when combined with 4to1 MPC combine results
in the screen turning black.

This is because the DPPCLK is stopped during the middle of an
optimize_bandwidth sequence during commit_minimal_transition without
going through plane power down/power up.

[How]
The intent of a 0Hz DPP clock through update_clocks is to disable the
DTO. This differs from the behavior of stopping the DPPCLK entirely
(utilizing a 0Hz clock on some ASIC) so it's better to move this logic
to reside next to plane power up/power down where we gate the HUBP/DPP
DOMAIN.

The new  sequence should be:
Power down: PG enabled -> RCO on
Power up: RCO off -> PG disabled

Rename power_on_plane to power_on_plane_resources to reflect the
actual operation that's occurring.

Cc: stable@vger.kernel.org
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-31 11:18:54 -04:00
Harry Wentland
4652ae7a51 drm/amd/display: Rename DCN config to FP
[Why & How]
The only reason we have the DCN config is for
floating point support. Rename it to make that
clear and (hopefully) avoid misuse of the config
in the future.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:40 -05:00
Harry Wentland
c186c13e65 drm/amd/display: Drop unnecessary DCN guards
[Why & How]
DC is littered with many DCN guards that are not needed.
Drop them.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:40 -05:00
Wenjing Liu
7ae1dbe654 drm/amd/display: merge dc_link.h into dc.h and dc_types.h
[why]
Remove the need to include dc_link.h separately. dc.h should contain
everything needed on DM side.

[How]
Merge dc_link.h into dc.h and dc_types.h so DM only needs to include
dc.h to use all link public functions.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-28 14:30:00 -05:00
Harry Wentland
283947bbd5 drm/amd/display: Format input and output CSC matrix
Format the input and output CSC matrix so they
look like 3x4 matrixes. This will make parsing them
much easier and allows us to quickly spot potential
mistakes.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-28 14:28:50 -05:00
Wesley Chalmers
8f0d304d21 drm/amd/display: Do not commit pipe when updating DRR
[WHY]
DRR and Pipe cannot be updated on
the same frame, or else underflow will
occur.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-08 17:15:21 -05:00
Sung Joon Kim
e95afc1cf7 drm/amd/display: Enable AdaptiveSync in DC interface
[why]
Start enabling AdaptiveSync feature on Linux environment.

[how]
Adding AdaptiveSync support in DC layer
- building AdaptiveSync info_packets
- adjusting the v_startup parameter

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Sung Joon Kim <sungjoon.kim@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-01-24 13:26:25 -05:00
Charlene Liu
dbc2309cac drm/amd/display: add hubbub_init related
Required by display init, also update get_dig_mode

Tested-by: Daniel Wheeler <Daniel.Wheeler@amd.com>
Reviewed-by: Hansen Dsouza <hansen.dsouza@amd.com>
Reviewed-by: Duncan Ma <duncan.ma@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-01-13 14:59:48 -05:00
Wenjing Liu
a98cdd8c48 drm/amd/display: refactor ddc logic from dc_link_ddc to link_ddc
[why]
1. Move dd_link_ddc functions to link_ddc.
2. Move link ddc functions declaration exposed in dc to link.h
3. Move link ddc functions declaration exposed in dm to dc_link.h
4. Remove i2caux_interface.h file

Tested-by: Daniel Wheeler <Daniel.Wheeler@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-01-13 14:57:40 -05:00
Colin Ian King
2165359b7e drm/amd/display: Fix spelling mistake: "dram_clk_chanage" -> "dram_clk_change"
There is a spelling mistake in the struct field dram_clk_chanage. Fix it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-12-09 16:50:30 -05:00
Rodrigo Siqueira
7ce24a3606 drm/amd/display: Add YCBCR2020 coefficients to CSC matrix
When some of the IGT tests are executed in DCN31, it is possible to see
multiple occurrences of this warning:

 WARNING: CPU: 9 PID: 3482 at
 drivers/gpu/drm/amd/amdgpu/../dal-dev/dc/dcn30/dcn30_dpp.c:154
 dpp3_program_post_csc+0x196/0x220 [amdgpu]
 [..]
 PU: 9 PID: 3482 Comm: amd_hdr Tainted: G       W        5.18.0+ #3
 IP: 0010:dpp3_program_post_csc+0x196/0x220 [amdgpu]
 [..]
 all Trace:
 <TASK>
 dpp3_cnv_setup+0x5d9/0x5f0 [amdgpu]
 ? dcn20_blank_pixel_data+0x30a/0x330 [amdgpu]
 dcn20_program_pipe+0x259/0xb40 [amdgpu]
 ? offset_to_id+0x1b0/0x1c0 [amdgpu]
 dcn20_program_front_end_for_ctx+0x36a/0x450 [amdgpu]
 commit_planes_for_stream+0x8eb/0x13e0 [amdgpu]

This commit fix the above issue by adding YCBCR2020 coefficients to the
DPP Color Space Converter (CSC) matrix.

Reviewed-by: Nawwar Ali <nawwar.ali@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-23 09:47:14 -05:00
Alex Deucher
5ca9b33ece drm/amd/display: fix the build when DRM_AMD_DC_DCN is not set
Move the new callback outside of the guard.

Fixes: dc55b106ad ("drm/amd/display: Disable phantom OTG after enable for plane disable")
CC: Alvin Lee <Alvin.Lee2@amd.com>
CC: Alan Liu <HaoPing.Liu@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-17 00:17:43 -05:00
Jun Lei
d97fd7a07b drm/amd/display: enable dchub request limit for DCN 3.2.x
[why]
HW recommend we enable this for better DF QoS for DCN 3.2.x

[how]
Add interfaces to hubbub to program register
Add initialization as part of init_hw
Add default settings for DCN 3.2.x
Add registry override for debug/tuning

Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Jun Lei <jun.lei@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-15 13:34:42 -05:00
Alvin Lee
dc55b106ad drm/amd/display: Disable phantom OTG after enable for plane disable
[Description]
- Need to disable phantom OTG after it's enabled
  in order to restore it to it's original state.
- If it's enabled and then an MCLK switch comes in
  we may not prefetch the correct data since the phantom
  OTG could already be in the middle of the frame.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-09 17:25:45 -05:00
Rodrigo Siqueira
a6126e14cf drm/amd/display: Add basic ODM description
Add kernel-doc to some of the ODM-related functions.

Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Reviewed-by: Aurabindo Pillai <Aurabindo.Pillai@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-10-27 14:45:45 -04:00
Rodrigo Siqueira
61708a47e8 drm/amd/display: Add DEC/CRB basic doc
Add a kernel-doc to the DE-Tile function hook.

Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Reviewed-by: Aurabindo Pillai <Aurabindo.Pillai@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-10-27 14:45:39 -04:00
Rodrigo Siqueira
1682bd1a6b drm/amd/display: Expand kernel doc for DC
This commit adds extra documentation for elements related to FAMs.

Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Reviewed-by: Aurabindo Pillai <Aurabindo.Pillai@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-10-27 14:45:29 -04:00
Alan Liu
62fa035b56 drm/amd/display: Drop struct crc_region and reuse struct rect
[Why]
reuse struct rect rather than adding a new struct.

[How]
- Userspace keeps inputting x_start, y_start, x_end, y_end
- We translate data to x, y, width, height in code flow to store
- translate back to x_start, y_start, x_end, y_end before programming HW

Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Reviewed-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-10-27 14:42:40 -04:00
Alan Liu
c0459bddd1 drm/amd/display: Implement secure display on DCN21
[Why]
Porting secure display feature from DCN10 to DCN21. Support single
display for now and will extend to multiple displays.

[How]
- use workqueue to offload works for dmub or dmcu firmware
- after receiving ROI update from userspace, set skip_frame_cnt to 1
- refactor amdgpu_dm_crtc_handle_crc_window_irq()
- disable PSR before activating secure_display on a crtc
- check if secure_display is activated before enabling psr
- only work for single display for now.

Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Reviewed-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-10-27 14:42:32 -04:00
Wenjing Liu
0094f042f2 drm/amd/display: remove audio mute control in hpo dp
VPG doesn't have the ability to mute audio output by sending all 0s in
audio SDP. The existing implemention is disabling audio SDP instead.
This is same as what dp_audio_enable does. Since it is no longer
referenced by any callers, we decided to remove this interface for
simplicity.

Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-10-24 14:35:40 -04:00
Alex Deucher
f00844daa5 drm/amd/display: add a license to cursor_reg_cache.h
It's MIT.

Fixes: b73353f7f3 ("drm/amd/display: Use the same cursor info across features")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-10-11 11:33:16 -04:00
Max Tseng
b73353f7f3 drm/amd/display: Use the same cursor info across features
Since different features would need to update cursor registers, However,
they would use different approaches.

To unify varied methods, this refactor is implemented the same update
cursor info method for current varied features.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Max Tseng <Max.Tseng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-10-10 17:32:55 -04:00
Dillon Varone
d6170e418d drm/amd/display: Acquire FCLK DPM levels on DCN32
[Why & How]
Acquire FCLK DPM levels to properly construct DML clock limits. Further
add new logic to keep number of indices for each clock in clk_mgr.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-10-10 17:32:55 -04:00
Rodrigo Siqueira
b33cd65df1 drm/amd/display: Remove OPTC lock check
At some point, we decided to blank HUBP during pixel data blank, and to
handle that, we added some OPTC lock checks. Later, we realized that
this change caused multiple regression, and we removed it. Nevertheless,
we still have some leftovers that might affect some ASIC behavior, and
this commit drops those changes to keep the code consistent.

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-10-06 12:02:04 -04:00
Samson Tam
3141d6cb64 drm/amd/display: fill in clock values when DPM is not enabled
[Why]
For individual feature testing, PMFW may not report all clock
values back. Driver will default them to 0 but this will
cause the BB table to be skipped and default to one state
with max clocks.

[How]
Add helper function to scan through initial clock values and
populate them with default clock limits so that BB table
can be built.
Add dpm_enabled flag to check when DPM is not enabled and
to trigger helper function.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Samson Tam <samson.tam@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-09-29 09:41:45 -04:00
Wenjing Liu
9c75891fee drm/amd/display: rework recent update PHY state commit
[why]
Original change 594b237b9a ("drm/amd/display: Add
interface to track PHY state") was implemented by assuming stream's
dpms off is equivalent to PHY power off.
This assumption doesn't hold in following situations:
1. MST multiple stream scenario, where multiple streams are sharing the
same PHY output. Toggle dpms off for one of the stream doesn't power
off the PHY due to the presence of other streams.
2. enable stream failure scenario, where enable stream fails due to
failure of link training. This will cause DPMS off is set to false, while
the actual PHY power state is off in certain cases.
Due to the problematic assumption, the logic will skip disabling
other streams for MST multiple stream scenario, therefore PHY is
not actually powered off.

[how]
1. Rework this refactor by moving PHY state update down to hardware
level, where we update PHY state in place when hardware sequencer
is actually changing the power state of the PHY hardware.
2. Reimplement symclk on TX off workaround in place when we are actually
calling transmitter control to power off PHY in dcn32. Note the workaround is
added due to the lack of proper software interface to set TX while keeping
symclk on. We plan to address this interface problem so we can set TX off
only without affecting symclk in future dcn versions.

Fixes: 594b237b9a ("drm/amd/display: Add interface to track PHY state")
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-09-19 15:10:24 -04:00
Duncan Ma
247a94a627 drm/amd/display: Correct dram channel width for dcn314
[Why]
The interpretation of the number of memory channels
differ by memory type, and this affects channel width
for the DML input.

[How]
Set dram channel width according to memory type for
dcn314.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Signed-off-by: Duncan Ma <duncan.ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-09-13 14:33:00 -04:00
Alvin Lee
594b237b9a drm/amd/display: Add interface to track PHY state
[Why]
Sometimes pixel clock needs to remain active after transmitter disable.

[How]
Use update_phy_state to track PHY state after stream
enable/disable and program pixel clock as needed.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-08-25 13:34:41 -04:00
Melissa Wen
43d61f6d8f drm/amd/display: add doc entries for MPC blending configuration
Describe structs and enums used to set blend mode properties to MPC
blocks. Some pieces of information are already available as code
comments, and were just formatted. Others were collected and summarised
from discussions on AMD issue tracker[1][2].

[1] https://gitlab.freedesktop.org/drm/amd/-/issues/1734
[2] https://gitlab.freedesktop.org/drm/amd/-/issues/1769

v2:
- fix typos (Tales)
- add MPCC to MPC entry in the glossary

Signed-off-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Tales Aparecida <tales.aparecida@gmail.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-08-16 18:14:32 -04:00
Rodrigo Siqueira
fdf17f1084 drm/amd/display: Add basic kernel doc to CRC code under DC
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-08-16 18:14:31 -04:00
Rodrigo Siqueira
64f991590f drm/amd/display: Fix a compilation failure on PowerPC caused by FPU code
We got a report from Stephen/Michael that the PowerPC build was failing
with the following error:

ld: drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.o uses hard float, drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.o uses soft float
ld: failed to merge target specific data of file drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.o

This error happened because of the function optc3_set_vrr_m_const. This
function expects a double as a parameter in a code that is not allowed
to have FPU operations. After further investigation, it became clear
that optc3_set_vrr_m_const was never invoked, so we can safely drop this
function and fix the ld issue.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Melissa Wen <mwen@igalia.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Tested-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-29 15:24:38 -04:00
Chris Park
4074f96d0f drm/amd/display: Cache cursor when cursor exceeds 64x64
[Why]
When Static screen from MALL, the cursor needs to be
cached if cursor exceeds 64x64 size.

[How]
Program the bit that cache cursor in MALL when size
of the cursor exceeds 64x64.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Chris Park <chris.park@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-25 17:17:21 -04:00
Michael Strauss
1f5dcb7365 drm/amd/display: Fix dpstreamclk programming
[WHY]
Currently programming incorrect hpo inst as well as selecting incorrect source

[HOW]
Use hpo inst instead of otg inst to select dpstreamclk inst

Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-25 17:17:10 -04:00
Nicholas Kazlauskas
44584b417a drm/amd/display: Add enable/disable FIFO callbacks to stream setup
[Why]
We don't write out attributes after disabling and re-enabling the link
on some monitors, causing some, but not all, HDMI displays to fail to
lightup on DCN314.

[How]
Firmware used to do this after DIG link setup.

Since firmware is no longer doing this to support USB4 and dynamic link
remapping we'll need to add this to driver in the equivalent paths.

New optional callbacks were created in the stream encoder interface and
implementations were added for DCN314.

Reviewed-by: Michael Strauss <Michael.Strauss@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-25 17:14:50 -04:00
Alan Liu
7c50a3e99a drm/amd/display: Program ACP related register
- Setup the shift and mask of HDMI_ACP_SEND register
- Program the register in hdmi stream encoder
- Also update ACP register in azalia configuration

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alan Liu <HaoPing.Liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-07-05 16:13:18 -04:00
Rodrigo Siqueira
071ebbb0d4 drm/amd/display: Fix __floatunsidf undefined for 32 bit compilation
When we tried to compile DCN32/321 for 32-bit architecture, we got this
error message:

ERROR: modpost: "__floatunsidf" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!

This was caused because we were trying to assign an unsigned int to a
double value which causes issues for 32-bit architecture. This issue can
be fixed by changing the value type.

Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Fixes: 265280b998 ("drm/amd/display: add CLKMGR changes for DCN32/321")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-30 19:34:59 -04:00
Rodrigo Siqueira
3e838f7ccf drm/amd/display: Get VCO frequency from registers
Add support to get VCO frequency from registers.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Aurabindo Jayamohanan Pillai <Aurabindo.Pillai@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-21 18:17:24 -04:00
Ahmad Othman
9a4c9de483 drm/amd/display: Adding VTEM to dc
[Why]
Video Timing Extended Metadata packet (VTEM) is required for features
like VRR and FVA

[How]
Adding support for VTEM transmission to stream encoders in DCN20 and DCN30
as part of FVA support

Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Ahmad Othman <ahmad.othman@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-14 21:38:41 -04:00
Oliver Logush
85ee819fd0 drm/amd/display: Drop unused privacy_mask setters and getters
[Why and How]
dwbc_funcs.set/get_privacy_mask isn't being used anymore, drop it

Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Oliver Logush <oliver.logush@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-14 21:38:40 -04:00
David Zhang
6651875ad7 drm/amd/display: Add PSR-SU-RC support in DC
[Why]

PSR-SU Rate Control - or PSR-SU-RC - enables PSR-SU panels to work with
variable refresh rate to allow for more power savings. Lowering the
refresh rate can increase PSR residency by expanding the eDP main link
shut down duration. It can also lower panel power consumption.

There is a complication with PSR, since the eDP main link can be shut
down. Therefore, the timing controller (TCON) on the eDP sink nees to be
able to scan out its remote buffer independent of the main link. To
allow the eDP source to specify the sink's refresh rate while the link
is off, vendor-specific DPCD registers are used. This allows the eDP
source to then "Rate Control" the panel during PSR active.

[How]

Add DC support to communicate with PSR-SU-RC supported eDP sinks. The
sink will need to know the desired VTotal during PSR active.

This change only adds support to DC, support in amdgpu_dm is still
pending to enable this fully.

Signed-off-by: David Zhang <dingchen.zhang@amd.com>
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-07 16:09:57 -04:00
Chris Park
9d001360b4 drm/amd/display: Add HDMI member to DTO
[Why]
For Pixel Rate control, when on HDMI, HDMI DTO
should be selected instead of DP DTO.

[How]
Add HDMI member to dtbclk_dto_params, so it can be used tell apart HDMI
and DP DTO in the future.

Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Chris Park <chris.park@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-07 16:09:57 -04:00
David Zhang
1b0da5a3e9 drm/amd/display: update cursor position to DMUB FW
[why]
To involve the cursor position into dirty rectangle calculation.

[how]
- separate plane and cursor update by different DMUB command
- send the cursor information while cursor updating, when updating
  cursor position/attribute, store cursor pos/attr to hubp, and
  notify dmub FW to exit psr before program cursor registers

Signed-off-by: David Zhang <dingchen.zhang@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-06 14:42:53 -04:00
David Zhang
6d1044a070 drm/amd/display: program PSR2 DPCD Configuration
[Why]
To support PSR2 Source DPCD configuration

[How]
Update the PSR2 Source DPCD settings while the PSR2 enabled

Signed-off-by: David Zhang <dingchen.zhang@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-06-06 14:41:05 -04:00