Commit Graph

1396809 Commits

Author SHA1 Message Date
YiPeng Chai
fe2ccc7b7b drm/amdgpu: query block error count of ras module
Query block error count of ras module.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:28:18 -04:00
Ellen Pan
91da591310 drm/amdgpu: Add logic for VF data exchange region to init from dynamic crit_region offsets
1. Added VF logic to init data exchange region using the offsets from dynamic(v2) critical regions;

Signed-off-by: Ellen Pan <yunru.pan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:28:14 -04:00
Ellen Pan
b4a8fcc782 drm/amdgpu: Add logic for VF ipd and VF bios to init from dynamic crit_region offsets
1. Added VF logic in amdgpu_virt to init IP discovery using the offsets from dynamic(v2) critical regions;
2. Added VF logic in amdgpu_virt to init bios image using the offsets from dynamic(v2) critical regions;

Signed-off-by: Ellen Pan <yunru.pan@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:28:11 -04:00
Ellen Pan
13ccaa8443 drm/amdgpu: Reuse fw_vram_usage_* for dynamic critical region in SRIOV
- During guest driver init, asa VFs receive PF msg to
	init dynamic critical region(v2), VFs reuse fw_vram_usage_*
	 from ttm to store critical region tables in a 5MB chunk.

Signed-off-by: Ellen Pan <yunru.pan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:28:08 -04:00
Ellen Pan
07009df649 drm/amdgpu: Introduce SRIOV critical regions v2 during VF init
1. Introduced amdgpu_virt_init_critical_region during VF init.
     - VFs use init_data_header_offset and init_data_header_size_kb
            transmitted via PF2VF mailbox to fetch the offset of
            critical regions' offsets/sizes in VRAM and save to
            adev->virt.crit_region_offsets and adev->virt.crit_region_sizes_kb.

Signed-off-by: Ellen Pan <yunru.pan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:28:05 -04:00
Ellen Pan
6d2191d226 drm/amdgpu: Add SRIOV crit_region_version support
1. Added enum amd_sriov_crit_region_version to support multi versions
2. Added logic in SRIOV mailbox to regonize crit_region version during
   req_gpu_init_data

Signed-off-by: Ellen Pan <yunru.pan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:27:58 -04:00
Ellen Pan
d88c8bec18 drm/amdgpu: Updated naming of SRIOV critical region offsets/sizes with _V1 suffix
- This change prepares the later patches to intro  _v2 suffix to SRIOV critical regions

Signed-off-by: Ellen Pan <yunru.pan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:27:52 -04:00
YiPeng Chai
a6b5a7a033 drm/amdgpu: query bad page info of ras module
Query bad page info of ras module.

V2:
  Update code to reuse bad page output code.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:27:49 -04:00
YiPeng Chai
62902b88ff drm/amdgpu: ras module supports error injection
ras module supports error injection.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:27:45 -04:00
YiPeng Chai
25c1e7414b drm/amd/ras: Update function and remove redundant code
Update function and remove redundant code:
1. Update function to prepare for internal use.
2. Remove unused function code previously prepared
   for ioctl.

V2:
  Update commit message content.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:27:37 -04:00
YiPeng Chai
4c74635afd drm/amd/ras: Update ras command context structure name
According to the actual usage of this structure,
it is more appropriate to call it context, the
structure name with ioctl is easy to cause
misunderstanding.

V2:
  Update commit message content.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:27:33 -04:00
Taimur Hassan
7ce9d9c190 drm/amd/display: Promote DC to 3.2.355
This version brings along following update:

-Fix GFP_ATOMIC abuse
-Fix several checkpatch issues
-Set DCN32 to use update planes and stream version 3
-Write segment pointer with mot enabled for MST
-Control BW allocation in FW side
-Change clean dsc blocks condition in accelerated mode
-Check disable_fec flag before enabling FEC

Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:26:44 -04:00
Meenakshikumar Somasundaram
a1362c4052 drm/amd/display: write segment pointer with mot enabled for mst
[Why]
Some mst branches NAK's segment pointer writes with mot disabled.
So reset of segment pointer to 0 should be performed with mot enabled.

[How]
Write segment pointer of mst branch devices with mot enabled.

Reviewed-by: Cruise Hung <cruise.hung@amd.com>
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:26:36 -04:00
Cruise Hung
1319fb80b3 drm/amd/display: Control BW allocation in FW side
[Why]
The BW allocation feature should be controlled in FW side.

[How]
Pass the control bit to FW boot option.

Reviewed-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Cruise Hung <Cruise.Hung@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:26:33 -04:00
Ilya Bakoulin
d021bd48ee drm/amd/display: Fix misc. checkpatch issues
[Why/How]
Addresses various checkpatch issues related to the HWSS block sequence
function change.

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:26:30 -04:00
Lewis Huang
d8ed14f1dc drm/amd/display: Change clean dsc blocks condition in accelerated mode
[Why]
On system resume from S4 with the lid closed,
DSC was not cleared because DPMS was already off.

[How]
In accelerated mode, to clean up DSC blocks if eDP dpms off is true
to align the DSC and dpms state when we are not in fast boot and
seamless boot.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Lewis Huang <Lewis.Huang@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:26:27 -04:00
Nicholas Carbones
0a013785a2 drm/amd/display: Set DCN32 to use update planes and stream version 3
[Why]
Old minimal transition does not always wait for updates to complete
before proceeding, which can lead to corruption in multi display
scenarios for DCN32.

[How]
Set DCN32 to use update_planes_and_stream_v3 for better pipe transition
handling.

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Nicholas Carbones <Nicholas.Carbones@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:26:19 -04:00
Meenakshikumar Somasundaram
e0550a1e30 drm/amd/display: Check disable_fec flag before enabling fec.
[Why]
dc debug option disable_fec was not working.

[How]
Check dc debug option disable_fec flag before
enabling fec in dp_should_enable_fec().

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:26:13 -04:00
Aurabindo Pillai
919c835027 drm/amd/display: Fix GFP_ATOMIC abuse
There is a lot GFP_ATOMIC allocations which are not in interrupt
context. Change them to use GFP_KERNEL instead.

Reviewed-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:26:08 -04:00
YiPeng Chai
6588766d08 drm/amdgpu: Enable ras module
Enable ras module, disabled by default.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:26:05 -04:00
Tiezhu Yang
46791d147d drm/amd: Fix set but not used warnings
There are many set but not used warnings under drivers/gpu/drm/amd when
compiling with the latest upstream mainline GCC:

  drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c:305:18: warning: variable ‘p’ set but not used [-Wunused-but-set-variable=]
  drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h:103:26: warning: variable ‘internal_reg_offset’ set but not used [-Wunused-but-set-variable=]
  ...
  drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h:164:26: warning: variable ‘internal_reg_offset’ set but not used [-Wunused-but-set-variable=]
  ...
  drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c:445:13: warning: variable ‘pipe_idx’ set but not used [-Wunused-but-set-variable=]
  drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.c:875:21: warning: variable ‘pipe_idx’ set but not used [-Wunused-but-set-variable=]

Remove the variables actually not used or add __maybe_unused attribute for
the variables actually used to fix them, compile tested only.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:25:58 -04:00
YiPeng Chai
7169e706c8 drm/amdgpu: Add ras module ip block to amdgpu discovery
Add ras module ip block to amdgpu discovery.

Signed-off-by: YiPeng Chai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:25:54 -04:00
Tao Zhou
036f18d0a2 drm/amdgpu: check save count before RAS bad page saving
It's possible that unit_num is larger than 0 but save_count is zero,
since we do get bad page address but the address is invalid. Check
unit_num and save_count together.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Candice Li <candice.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:25:49 -04:00
Sunil Khatri
d5a62b7aa9 drm/amdgpu: add the kernel docs for alloc/free/valid range
Add kernel docs for the functions related to hmm_range.

Documents added for functions:
amdgpu_hmm_range_valid
amdgpu_hmm_range_alloc
amdgpu_hmm_range_free

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:25:46 -04:00
Victor Zhao
6169b555db drm/amdgpu: use GPU_HDP_FLUSH for sriov
Currently SRIOV runtime will use kiq to write HDP_MEM_FLUSH_CNTL for
hdp flush. This register need to be write from CPU for nbif to aware,
otherwise it will not work.

Implement amdgpu_kiq_hdp_flush and use kiq to do gpu hdp flush during
sriov runtime.

v2:
- fallback to amdgpu_asic_flush_hdp when amdgpu_kiq_hdp_flush failed
- add function amdgpu_mes_hdp_flush

v3:
- changed returned error

Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Victor Zhao <Victor.Zhao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:25:41 -04:00
Victor Zhao
e71ca1efd3 drm/amdgpu: Add kiq hdp flush callbacks
Add kiq hdp flush callbacks for gfx ips to support gpu hdp flush when no
ring presents

Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Victor Zhao <Victor.Zhao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:25:36 -04:00
Mario Limonciello
152dca4ea7 drm/amd: Add a helper to tell whether an IP block HW is enabled
There is already a helper for telling if a block is valid, but if
IP handling wants to check if it's HW is enabled no such helper
exists.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:25:31 -04:00
Alysa Liu
bd07b3f08a drm/amdgpu: Fix vram_usage underflow
vram_usage was subtracting non-vram memory size,
which caused it to become negative.

Signed-off-by: Alysa Liu <Alysa.Liu@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:25:22 -04:00
Ilya Zlobintsev
cdfdec6f16 drm/amd/pm: Avoid writing nulls into pp_od_clk_voltage
Calling `smu_cmn_get_sysfs_buf` aligns the
offset used by `sysfs_emit_at` to the current page boundary, which was
previously directly returned from the various `print_clk_levels`
implementations to be added to the buffer position.
Instead, only the relative offset showing how much was written
to the buffer should be returned, regardless of how it was changed
for alignment purposes.

Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Ilya Zlobintsev <ilya.zlobintsev@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:25:17 -04:00
Tvrtko Ursulin
8c62f75cb7 drm/amdgpu: Use memset32 for IB padding
Use memset32 instead of open coding it, just because it is
that bit nicer.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:25:10 -04:00
Taimur Hassan
ccdc171b34 drm/amd/display: Promote DC to 3.2.354
Display Core v3.2.354 release highlights:

* DCN35 dispclk, dppclk & other fixes
* DCN401 cursor offload fix
* Add new block seqeunce-building/executing functions
* null ptr fixes
* DPIA hpd fix
* debug improvements
* Fix performance regression from full updates
* Firmware Release 0.1.31.0

Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:25:07 -04:00
Taimur Hassan
0c07085e5c drm/amd/display: [FW Promotion] Release 0.1.31.0
Release highlights:

DCN35/351/36:
	* fix video lag with replay
	* DPP DTO programming sequence fix
	* IPS exit programming sequence fix

DCN 3.1.5:
	* fix video lag with replay

Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:25:00 -04:00
Ilya Bakoulin
f96012baa5 drm/amd/display: add new block sequence-building/executing functions
[Why/How]
Create functions for building/executing HW block programming steps

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Ilya Bakoulin <Ilya.Bakoulin@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:24:57 -04:00
Wenjing Liu
8c6a023473 drm/amd/display: add additional hdcp traces
[why]
Current hdcp trace only tracks hdcp errors. We need to expand the trace
structure for more tracing information.

[how]
Add following traces for hdcp1:
- attempt_count
- downstream_device_count
Add following traces for hdcp2:
- attempt_count
- downstream_device_count
- hdcp1_device_downstream
- hdcp2_legacy_device_downstream

Reviewed-by: Sung Lee <sung.lee@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:24:53 -04:00
Dominik Kaszewski
bf95cf7f7a drm/amd/display: Fix performance regression from full updates
[Why]
full_update_required is too strict at update_planes_and_stream_state,
causing a performance regression due to too many updates being full.

[How]
* Carve out weak version of full_update_required for use inside
update_planes_and_stream_state.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Dominik Kaszewski <dominik.kaszewski@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:24:49 -04:00
Dominik Kaszewski
03a593b1ac drm/amd/display: Remove dc state from check_update
[Why]
dc_check_update_surfaces_for_stream should not have access to entire
DC, especially not a mutable one. Concurrent checks should be able
to run independently of one another, without risk of changing state.

[How]
* Remove access to dc state other than debug and capacity.
* Move some checks from DC to DM caller.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Dominik Kaszewski <dominik.kaszewski@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:24:24 -04:00
Aurabindo Pillai
c04812cbe2 drm/amd/display: use GFP_NOWAIT for allocation in interrupt handler
schedule_dc_vmin_vmax() is called by dm_crtc_high_irq(). Hence, we
cannot have the former sleep. Use GFP_NOWAIT for allocation in this
function.

Fixes: c210b757b4 ("drm/amd/display: fix dmub access race condition")
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Sun peng (Leo) Li <sunpeng.li@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:22:08 -04:00
Aurabindo Pillai
08f68d93fa drm/amd/display: Add sink/link debug logs
Add some extra logs to better help triage blackscreen issues.

* Dump all the links to see if they have sinks associated.
* Print the edid manufacturer & product id associated with a stream that
  was just created.

Reviewed-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:22:04 -04:00
Ovidiu Bunea
e6c0e853f0 drm/amd/display: Move all DCCG RCG into HWSS root_clock_control
[why & how]
Enabling/disabling DCCG RCG should be done as a last-level step when
enabling/disable blocks. This is handled by HWSS root_clock_control
already during optimize_bandwidth.
However, dccg35_dpp_root_clock_control was missing the RCG enable
call on the disable path.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Ovidiu Bunea <ovidiu.bunea@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:21:59 -04:00
Wenjing Liu
d745900b40 drm/amd/display: update perfmon measurement interfaces
[how]
The commit update interfaces for dchubbub perfmon meansurement to better
reflect our requirements.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:21:56 -04:00
Yihan Zhu
3b98fd0efa drm/amd/display: fix dppclk rcg poweron check
[WHY & HOW]
dppclk rcg power down will flip the poweron flag in the cache to cause dppclk rcg will never
run the rcg ungate sequence in some condition. Wait 10us to let dpp dto fully ramp.

Reviewed-by: Ovidiu (Ovi) Bunea <ovidiu.bunea@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Yihan Zhu <Yihan.Zhu@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:21:52 -04:00
Peichen Huang
b466ad5574 drm/amd/display: not skip hpd irq for bw alloc mode
[WHY]
Driver only process hpd irq when a branch device or when
the link is established. It would cause some irq for bw_alloc
mode of dp tunneling are ignored.

[HOW]
Driver should process hpd irq if bw_alloc and dp tunneling
are enabled.

Reviewed-by: Cruise Hung <cruise.hung@amd.com>
Signed-off-by: Peichen Huang <PeiChen.Huang@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:21:45 -04:00
Alvin Lee
b9a21a379a drm/amd/display: Update spacing in struct
Update spacing so that fields with longer name will
still be aligned correctly (new fields to be added).

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:21:39 -04:00
Alvin Lee
11d672db1b drm/amd/display: Update DCN401 path for cursor offload
[Description]
The DCN401 cursor offload path needs to take into account
use_mall_for_cursor, and also need to ensure the dcn32
function assigns the cursor cache fields (DCN401 uses the
dcn32 implementation).

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:21:30 -04:00
Charlene Liu
d7f5a61e1b drm/amd/display: increase max link count and fix link->enc NULL pointer access
[why]
1.) dc->links[MAX_LINKS] array size smaller than actual requested.
max_connector + max_dpia + 4 virtual = 14.
increase from 12 to 14.

2.) hw_init() access null LINK_ENC for dpia non display_endpoint.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Reviewed-by: Chris Park <chris.park@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:20:56 -04:00
Relja Vojvodic
3471b9a31c drm/amd/display: Rework HDMI data channel reads
Fix the HDMI data channel reads to respect scdc_present field
to pass compliance test.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Relja Vojvodic <rvojvodi@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:20:48 -04:00
Adi Gollamudi
f7124dd568 drm/amd/display: fix typo in display_mode_core_structs.h
Fix a typo in a comment, change "enviroment" to "environment" in
drivers/gpu/drm/amd/display/dc/dml2/display_mode_core_structs.h

Signed-off-by: Aditya Gollamudi <adigollamudi@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:20:40 -04:00
Charlene Liu
a1829659b5 drm/amd/display: add dccg dfs mask def
[why]
add some register masks for DCCG

Reviewed-by: Yihan Zhu <yihan.zhu@amd.com>
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:20:35 -04:00
Alvin Lee
cb689a474b drm/amd/display: Remove unused field in DML
Remove unused fields.

Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:20:31 -04:00
Meenakshikumar Somasundaram
dc69b48988 drm/amd/display: Fix NULL pointer dereference
[Why]
On a mst branch with multi display setup, dc context is obselete
after updating the first stream. Referencing the same dc context
for the next stream update to fetch dc pointer leads to NULL
pointer dereference.

[How]
Get the dc pointer from the link rather than context.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-20 18:19:44 -04:00