Commit Graph

8463 Commits

Author SHA1 Message Date
Bhuvanachandra Pinninti
f6510641d2 drm/amd/display: Refactoring DSC enum dsc_bits_per_comp.
[Why]
Previously the 'dsc_bits_per_comp' enumeration was defined in individual
.c files, making it unavailable for other files that may need it.

[How]
The 'dsc_bits_per_comp' enumeration has been relocated to a common header
file.

Reviewed-by: Mounika Adhuri <Mounika.Adhuri@amd.com>
Reviewed-by: Martin Leung <martin.leung@amd.com>
Signed-off-by: Bhuvanachandra Pinninti <bpinnint@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-05-05 12:54:18 -04:00
Ovidiu Bunea
b4db797117 drm/amd/display: Update IPS sequential_ono requirement checks
[why & how]
ASICs that require special RCG/PG programming are determined based
on hw_internal_rev. Update these checks to properly include all such
ASICs.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Ovidiu Bunea <Ovidiu.Bunea@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-05-05 12:54:12 -04:00
Antonio Fernando Silva e Cruz Filho
da072da2c8 drm/amd/display: Rename program_timing function for better debugging
[WHY]
Improve the output when using the ftrace debug feature,
making it easier to identify which function is currently being executed.

[HOW]
Rename the program_timing function to a name that
includes the path to the function's file.

Signed-off-by: Antonio Fernando Silva e Cruz Filho <fernando.cruz.ctt@gmail.com>
Co-developed-by: André Nogueira Ribeiro <r.andrenogueira@gmail.com>
Signed-off-by: André Nogueira Ribeiro <r.andrenogueira@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-30 18:18:59 -04:00
Srinivasan Shanmugam
716ad3c28f drm/amd/display: Fix NULL pointer dereference for program_lut_mode in dcn401_populate_mcm_luts
This commit introduces a NULL pointer check for
mpc->funcs->program_lut_mode in the dcn401_populate_mcm_luts function.
The previous implementation directly called program_lut_mode without
validating its existence, which could lead to a NULL pointer
dereference.

With this change, the function is now only invoked if
mpc->funcs->program_lut_mode is not NULL

Fixes the below:

drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn401/dcn401_hwseq.c:720 dcn401_populate_mcm_luts()
error: we previously assumed 'mpc->funcs->program_lut_mode' could be null (see line 701)

drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn401/dcn401_hwseq.c
    642 void dcn401_populate_mcm_luts(struct dc *dc,
    643                 struct pipe_ctx *pipe_ctx,
    644                 struct dc_cm2_func_luts mcm_luts,
    645                 bool lut_bank_a)
    646 {
	...
    716                 }
    717                 if (m_lut_params.pwl) {
    718                         if (mpc->funcs->mcm.populate_lut)
    719                                 mpc->funcs->mcm.populate_lut(mpc, m_lut_params, lut_bank_a, mpcc_id);
--> 720                         mpc->funcs->program_lut_mode(mpc, MCM_LUT_SHAPER, MCM_LUT_ENABLE, lut_bank_a, mpcc_id);

Cc: Yihan Zhu <yihanzhu@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Cc: Tom Chung <chiahsuan.chung@amd.com>
Cc: Roman Li <roman.li@amd.com>
Cc: Alex Hung <alex.hung@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Yihan Zhu <yihanzhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-30 18:05:52 -04:00
Dr. David Alan Gilbert
d61724056a drm/amd/display: Remove unused *vbios_smu_set_dprefclk
rn_vbios_smu_set_dprefclk() was added in 2019 by
commit 4edb6fc918 ("drm/amd/display: Add Renoir clock manager")
rv1_vbios_smu_set_dprefclk() was also added in 2019 by
commit dc88b4a684 ("drm/amd/display: make clk mgr soc specific")

neither have been used.

Remove them.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-22 08:51:45 -04:00
TungYu Lu
33bc89949b drm/amd/display: Correct prefetch calculation
[Why]
The minimum value of the dst_y_prefetch_equ was not correct
in prefetch calculation whice causes OPTC underflow.

[How]
Add the min operation of dst_y_prefetch_equ in prefetch calculation
for legacy DML.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: TungYu Lu <tungyu.lu@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-22 08:51:45 -04:00
Dillon Varone
19e743f0fb drm/amd/display: Refactor SubVP cursor limiting logic
[WHY]
There are several gaps that can result in SubVP being enabled with
incompatible HW cursor sizes, and unjust restrictions to cursor size due
to wrong predictions on future usage of SubVP

[HOW]
- remove "prediction" logic in favor of tagging based on previous SubVP
  usage
- block SubVP if current HW cursor settings are incompatible
- provide interface for DM to determine if HW cursor should be disabled
  due to an attempt to enable SubVP

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-22 08:51:45 -04:00
Meenakshikumar Somasundaram
8aaeb25327 drm/amd/display: Fix pixel rate divider policy for 1 pixel per cycle config
[Why]
Pixel rate dividor was not programmed correctly for 1 pixel per cycle
configuration for empty tu case.

[How]
Included check for empty tu when pixel rate dividor values were selected.

Reviewed-by: Michael Strauss <michael.strauss@amd.com>
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-22 08:51:44 -04:00
Charlene Liu
8e40dd9320 drm/amd/display: Revert "not disable dtb as dto src at dpms off"
[why]
not all the asic using the same code path.
need to revisit and limit the impact.

This reverts commit 32be4e39f4.

Reviewed-by: Gabe Teeger <gabe.teeger@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-22 08:51:44 -04:00
George Shen
1594b60d74 drm/amd/display: Use 16ms AUX read interval for LTTPR with old sinks
[Why/How]
LTTPR are required to program DPCD 0000Eh to 0x4 (16ms) upon AUX read
reply to this register. Since old Sinks witih DPCD rev 1.1 and earlier
may not support this register, assume the mandatory value is programmed
by the LTTPR to avoid AUX timeout issues.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-22 08:51:44 -04:00
Taimur Hassan
ce2e117bfb drm/amd/display: Promote DC to 3.2.329
Summary:

* Implement HDMI Read request
* RMCM and MCM 3DLUT support
* Enable urgent latency adjustment on DCN35
* Enable phy-ssc reduction by default

Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-22 08:51:35 -04:00
Nicholas Susanto
cd74ce1f0c drm/amd/display: Enable urgent latency adjustment on DCN35
[Why]

Urgent latency adjustment was disabled on DCN35 due to issues with P0
enablement on some platforms. Without urgent latency, underflows occur
when doing certain high timing configurations. After testing, we found
that reenabling urgent latency didn't reintroduce p0 support on multiple
platforms.

[How]

renable urgent latency on DCN35 and setting it to 3000 Mhz.

This reverts commit 3412860cc4.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Nicholas Susanto <nsusanto@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 11:28:09 -04:00
Yihan Zhu
652968d996 drm/amd/display: DCN42 RMCM and MCM 3DLUT support
[WHY & HOW]
Providing hardware programming for the RMCM and MCM IPs for 3DLUT in DCN42.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Yihan Zhu <Yihan.Zhu@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 11:28:05 -04:00
Yihan Zhu
c9646e5a7e drm/amd/display: DCN32 null data check
[WHY & HOW]
Avoid null curve data structure used in the cm block for the potential issue.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Yihan Zhu <Yihan.Zhu@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 11:28:01 -04:00
Austin Zheng
8fc3959cd4 drm/amd/display: Move Mode Support Prefetch Checks To Its Own Function
[Why]
Large stack size observed in DCN4 mode support when compiling with clang.
Additional instrumentation added by compiler adds to stack size.
dml_core_mode_support ends up going over the stack size limit
due to the size of the function.

[How]
Move checks and calculations for prefetch to its own function.

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Austin Zheng <Austin.Zheng@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 11:27:39 -04:00
Jack Chang
6df7175263 drm/amd/display: Move desync error counter operation up.
[Why & How]
Move desync error counter operation up to prevent
it from being skipped by force disable desync
error.

Reviewed-by: Robin Chen <robin.chen@amd.com>
Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Jack Chang <jack.chang@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 11:27:32 -04:00
Mario Limonciello
7e40f64896 drm/amd/display: Avoid divide by zero by initializing dummy pitch to 1
[Why]
If the dummy values in `populate_dummy_dml_surface_cfg()` aren't updated
then they can lead to a divide by zero in downstream callers like
CalculateVMAndRowBytes()

[How]
Initialize dummy value to a value to avoid divide by zero.

Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 11:27:29 -04:00
Chris Park
724a4b400b drm/amd/display: Implement HDMI Read Request
[Why]
Read Request provides alterative method to polling to
the HDMI sinks that support it.

[How]
Implement Read Request where interrupt can be generated
by the sink.

Reviewed-by: Joshua Aberback <joshua.aberback@amd.com>
Signed-off-by: Chris Park <chris.park@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 11:27:25 -04:00
Yiling Chen
f53d0f48a8 drm/amd/display: To apply the adjusted DP ref clock for DP devices
[Why]
For some pixel clock margin sensitive external monitor,
we could not keep original DP ref clock for the ASICs
supported SSC DP ref clock.

[How]
From slicon design team's comment,
we have to apply the adjusted DP ref clock for
DP devices.
DP 128b (DP2) signals uses the DTBCLK not DP ref.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Yiling Chen <yi-ling.chen2@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 11:26:59 -04:00
Alexandre Demers
00ec6732a9 drm/amdgpu: add missing DCE6 to dce_version_to_string()
Missing DCE 6.0 6.1 and 6.4 are identified as UNKNOWN. Fix this.

Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 10:54:41 -04:00
Alexandre Demers
85207abb40 drm/amdgpu: fix typo in bios_parser.c
Probably a cut and paste error from using get_integrated_info_v8's comment.
This has to be get_integrated_info_v9

Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 10:54:36 -04:00
Alexandre Demers
f82e7cf5f5 drm/amdgpu: fix duplicated value setting in dce100_resource_construct()
i2c_speed_in_khz was set twice with the same values. Looking at other DCE
versions, we probably wanted to set the value for i2c_speed_in_khz_hdcp.

Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 10:54:30 -04:00
Alexandre Demers
66f6ea421a drm/amdgpu: add missing parameter name in dce110_clk_src_construct() declaration
While not needed per speaking, all the other parameters have names but
this one.

Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 10:54:22 -04:00
Alexandre Demers
34c86a0f44 drm/amdgpu: rename function to follow naming convention in dce110
The prefix dce110 is used on all functions, but init_pipes() and
init_hw(). Under DCN, these sames functions are prefixed.

Let's keep thing coherent.

Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-21 10:54:18 -04:00
Alex Deucher
20c50a9a79 drm/amd/display/dml2: use vzalloc rather than kzalloc
The structures are large and they do not require contiguous
memory so use vzalloc.

Fixes: 70839da636 ("drm/amd/display: Add new DCN401 sources")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4126
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-11 17:00:02 -04:00
Alexandre Demers
a149f0bd0b drm/amd/display/dc: reclassify DCE6 resources and hw sequencer
Classify DCE6 resource and sequencer as they are for other DCE versions

Put dce60_resource.c and .h under amd/display/dc/resource/dce60
Put and rename dce60_hw_sequencer.c and .h under amd/display/dc/hwss/dce60

v2: fix build when CONFIG_DRM_AMD_DC_SI=n (Alex)

Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-08 16:48:14 -04:00
Alexandre Demers
160e6f5108 drm/amdgpu: fix typos in DCEs
In DCE6, DCE8, DCE10, DCE11, "hdp" is replaced by "hpd" and
replace "type" by "hpd" for a uniform parameter naming usage across DCEs.

In link_factory.c, there is a missing "p" to "types"

Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-08 16:48:13 -04:00
Taimur Hassan
dd035239c9 drm/amd/display: Promote DC to 3.2.328
Summary:

* Optimize custom brightness curve
* Correct SSC enable detection for DCN351
* Turn off eDP lcdvdd and backlight if not required
* Use DMUB Fused IO interface for HDCP
* Extend eDP-on-DP1 quirk list

Reviewed-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 18:01:08 -04:00
Sherry Wang
e3895e8a87 drm/amd/display: rename IPS2 entry/exit message
[Why&How]
Fix the confusing entry/exit message name for IPS2

Reviewed-by: Duncan Ma <duncan.ma@amd.com>
Signed-off-by: Sherry Wang <Yao.Wang1@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 18:01:08 -04:00
Charlene Liu
0d93e82186 drm/amd/display: turn off eDP lcdvdd and backlight if not required
[why]
A+N configuration, eDP on A-APU is off, extended display active.
Resume from s4, eDP's backlight is still on.

[how]
Turn off inactive eDP backlight and lcdvdd.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Jing Zhou <Jing.Zhou@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 18:01:08 -04:00
Ausef Yousof
32be4e39f4 drm/amd/display: dont disable dtb as dto src during dpms off
fix was previously in 25.20 but was reverted out as it was accompanied
by other changes that caused regression.

[why&how]
Disabling dtb as the dto src during dpms off relies on in the same
instance being able to also alter the dto src bit to dpref (or not dtb
in general), but this was recently changed to only take place in
dcn31_program_pix_clk, as that is where we want to perform any dto src
changes because tg is off at that point, it is unsafe to do that
elsewhere. What this means is now instead of disabling dtb as dto src
and modifying source bit, we are left with the configuration for a given
tg that specifies dtb as dto src and dtb dto en simultaneously is unset.
dcn31_program_pix_clk can rectify this but its possible for us to
perform some tg dependant  operation that would simply hang because when
we go to enable say crtc then, the clk we specify as dto src is "off" en
bit is cleared, source bit was never changed, and program_pix_clk hasnt
been called yet (as apart of dpms on)

We cant disable it as dto src during dpms off if we want the luxury of
performing tg dependant operation during dpms off and before dpms on.

Reviewed-by: Yihan Zhu <yihan.zhu@amd.com>
Signed-off-by: Ausef Yousof <Ausef.Yousof@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 18:01:08 -04:00
Ausef Yousof
556db637c2 drm/amd/display: wait for updates to latch before locking
[why&how]
It is possible for an update to acquire otg lock and begin programming
while the previous update has not completed and its values have not
latched. The correct way to go about this is to wait until the vupdate
pulses so we can be sure that previous updates have latched and we can
continue with the current update pipe programming, otherwise during
consecutive full updates we will have corruption flash on the screen.

The corruption flash occurs specifically on configs that require odm
combine, and its local to a specific pipe (will not flash across whole
screen). This ticket is across the otg slave, but it may also appear
across master.

Reviewed-by: Leo Chen <leo.chen@amd.com>
Signed-off-by: Ausef Yousof <Ausef.Yousof@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 18:01:08 -04:00
Mario Limonciello
33056a97ae drm/amd/display: Remove double checks for debug.enable_mem_low_power.bits.cm
[Why]
A variety of the 3DLUT handling functions check
`debug.enable_mem_low_power.bits.cm` both in the caller and function.
This is unnecessary overhead.

[How]
For each of them reduce to just checking just in caller or function.

Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 18:01:07 -04:00
Dominik Kaszewski
ce801e5d6c drm/amd/display: HDCP Locality check using DMUB Fused IO
[Why]
HDCP locality check has strict timing requirements, currently broken
due to reliance on msleep which does not guarantee accuracy.
The PR moves the write-poll-read sequence into DMUB using new generic
Fused IO interface, where the timing accuracy is greatly improved.
New flow is enabled using DCN resource capability bit (none for now),
or using a debug flag.

[How]
* Extended mod_hdcp_config with new function for requesting DMUB
to execute a sequence of fused I2C/AUX commands and synchronously
wait until an outbox reply arrives or a timeout expires.
* If the timeout expires, send an abort to DMUB.
* Update HDCP to use the DMUB for locality check if supported.
* Add DC_HDCP_LC_FORCE_FW_ENABLE and DC_HDCP_LC_ENABLE_SW_FALLBACK.
* Make the first enable new flow regardless of resource capabilities.
* Make the second enable fallback to old SW flow.
* Clean up makefile source file listings for easier updates.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Dominik Kaszewski <dominik.kaszewski@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 18:01:07 -04:00
Kevin Gao
d01a7306e1 drm/amd/display: Correct SSC enable detection for DCN351
[Why]
Due to very small clock register delta between DCN35 and DCN351, clock
spread is being checked on the wrong register for DCN351, causing the
display driver to believe that DPREFCLK downspread to be disabled when
in some stacks it is enabled. This causes the clock values for audio to
be incorrect.

[How]
Both DCN351 and DCN35 use the same clk_mgr, so we modify the DCN35
function that checks for SSC enable to read CLK6 instead of CLK5 when
using DCN351. This allows us to read for DPREFCLK downspread correctly
so the clock can properly compensate when setting values.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Kevin Gao <kevin.gao3@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 18:01:07 -04:00
Andrey Vatoropin
d53a64e9ee drm/amd/display: Remove the redundant NULL check
Static analysis shows that pointer "timing" cannot be NULL because it
points to the object "struct dc_crtc_timing".

Remove the extra NULL check. It is meaningless and harms the readability
of the code.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Andrey Vatoropin <a.vatoropin@crpt.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:59 -04:00
James Flowers
ca690c7e21 drm/amd/display: removed unused function
Removed unused function mpc401_get_3dlut_fast_load_status.

Signed-off-by: James Flowers <bold.zone2373@fastmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:59 -04:00
Aric Cyr
b5af7525ae drm/amd/display: Promote DAL to 3.2.327
Summary:

* Improve vrr for replay and psr
* Rewrite drm debug message
* Fix clock issues for dcn32 and dcn401
* Fix mst dsc mode validation issue

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:58 -04:00
Dillon Varone
e8cc149ed9 drm/amd/display: Fix Vertical Interrupt definitions for dcn32, dcn401
[WHY&HOW]
- VUPDATE_NO_LOCK should be used in place of VUPDATE always
- Add VERTICAL_INTERRUPT1 and VERTICAL_INTERRUPT2 definitions

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:58 -04:00
Dillon Varone
0fc9635a80 Revert "drm/amd/display: Fix VUpdate offset calculations for dcn401"
This reverts commit fe45e2af4a.

Reason for revert: it causes stuttering in some usecases.

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:37 -04:00
Dillon Varone
fe45e2af4a drm/amd/display: Fix VUpdate offset calculations for dcn401
[WHY&HOW]
DCN401 uses a different structure to store the VStartup offset used to
calculate the VUpdate position, so adjust the calculations to use this
value.

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:37 -04:00
Dillon Varone
a3b7dc4a1e drm/amd/display: Add Support for reg inbox0 for host->DMUB CMDs
[WHY]
DCN4+ supports a new register based mailbox for sending messages
from host to DMCUB. This mailbox supports 64 byte commands, which makes
it compatible with the same structure as the frame buffer based mailbox.

[HOW]
The intention for reg_inbox0 is to be slot in replacement for the frame
buffer based mailbox (Inbox1). It supports all of the required features:
- Supports all messages handled by FB Inbox1
- Supports multi command batching

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:37 -04:00
ChunTao Tso
4b884e3f03 drm/amd/display: Add a Panel Replay config option
[Why]
Replay need special policy for the scenario Teams,
add a flag to imply apply special policy or not.

[How]
Add a config option intended for future use for video conferencing applications.

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: ChunTao Tso <ChunTao.Tso@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:36 -04:00
Dillon Varone
3b258b6f52 drm/amd/display: Consider downspread against max clocks in DML2.1
[WHY&HOW]
Core should evaluate support based on the max clocks after considering
downspread.

Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:36 -04:00
Robin Chen
7a2911b7f4 drm/amd/display: Enable Replay Low Hz feature flag
Enable replay low refresh rate support.

Reviewed-by: ChunTao Tso <chuntao.tso@amd.com>
Signed-off-by: Robin Chen <robin.chen@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:36 -04:00
Joshua Aberback
7b9f869879 drm/amd/display: Use meaningful size for block_sequence array
[Why]
This array was initially defined as size 50. There were array overflow
issues so the size was increased to 100. To ensure such issues are
avoided in the future, the size should be set based on the possible
contents instead of an arbitrary value.

[How]
 - upper bound, assume every update occurs on max number of pipes
 - define array sizes for function parameters, for static analysis

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Joshua Aberback <joshua.aberback@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:36 -04:00
Austin Zheng
40b85a9066 drm/amd/display: Set ODM Factor Based On DML Architecture
[Why]
Mapping of ODM enum is different for DML2.0 vs DML2.1.
Configs using DML2.1 will incorrectly trigger an assert meant for DML2.0.

[How]
Use if/else to seperate logic between DML2.0 and DML2.1.

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Austin Zheng <Austin.Zheng@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:36 -04:00
Aric Cyr
eed269da71 drm/amd/display: DC v3.2.326
Summary:

* DML 2.1 resync
* Vblank disable fixes
* Visual confirm debug improvements
* Add command for reading ABM histogram
* Bug fixes & improvements

Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:31 -04:00
JinZe.Xu
a8f83d0c2d drm/amd/display: Use sync version of indirect register access.
[Why]
Access to indirect registers by DC and other components are not synchronized.

[How]
Use sync version of indirect register access.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: JinZe.Xu <JinZe.Xu@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:31 -04:00
Aric Cyr
c82d84d1e4 drm/amd/display: Create a temporary scratch dc_link
Create a temporary scratch dc_link for programming purposes
and fix a copy of pipe_ctx on the stack to a pointer reference.

Reviewed-by: Josip Pavic <josip.pavic@amd.com>
Signed-off-by: Aric Cyr <Aric.Cyr@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-04-07 15:18:31 -04:00