Commit Graph

24 Commits

Author SHA1 Message Date
Yihan Zhu
26ad78fffc drm/amd/display: MPC basic allocation logic and TMZ
[WHY & HOW]
Adding basic logic to allocate unused RMCM block and TMZ support.

Reviewed-by: Krunoslav Kovac <krunoslav.kovac@amd.com>
Signed-off-by: Yihan Zhu <Yihan.Zhu@amd.com>
Signed-off-by: Ivan Lipski <ivan.lipski@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-07-15 14:07:51 -04:00
Yihan Zhu
0ae0b67012 drm/amd/display: Add RMCM debug logging
[WHY & HOW]
Add new FL feature debug logging into the existing DTN logging.

Reviewed-by: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Yihan Zhu <Yihan.Zhu@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-06-18 12:19:17 -04:00
Nevenko Stupar
5dd63a0bfc drm/amd/display: Fix the typo in dcn401 Hubp block
[Why & How]
Fix the typo for hubp_clear_tiling, currently calls hubp2_clear_tiling
for dcn401 instead of intended hubp401_clear_tiling.

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Nevenko Stupar <Nevenko.Stupar@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>
2025-05-16 13:38:47 -04:00
Dmytro
2739bd1237 drm/amd/display: Allow reuse of of DCN4x code
Remove the static qualifier to make it available for code sharing
with other components.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Dmytro <dmytro.laktyushkin@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-02-12 21:03:01 -05:00
Zhikai Zhai
4a4077b4b6 drm/amd/display: Update Cursor request mode to the beginning prefetch always
[Why]
The double buffer cursor registers is updated by the cursor
vupdate event. There is a gap between vupdate and cursor data
fetch if cursor fetch data reletive to cursor position.
Cursor corruption will happen if we update the cursor surface
in this gap.

[How]
Modify the cursor request mode to the beginning prefetch always
and avoid wraparound calculation issues.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Zhikai Zhai <zhikai.zhai@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-02-12 21:02:59 -05:00
Lo-an Chen
e01f07cb92 drm/amd/display: Fix seamless boot sequence
[WHY]
When the system powers up eDP with external monitors in seamless boot
sequence, stutter get enabled before TTU and HUBP registers being
programmed, which resulting in underflow.

[HOW]
Enable TTU in hubp_init.
Change the sequence that do not perpare_bandwidth and optimize_bandwidth
while having seamless boot streams.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Lo-an Chen <lo-an.chen@amd.com>
Signed-off-by: Paul Hsieh <paul.hsieh@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-02-03 12:13:38 -05:00
Aric Cyr
024771f3fb drm/amd/display: Optimize cursor position updates
[why]
Updating the cursor enablement register can be a slow operation and accumulates
when high polling rate cursors cause frequent updates asynchronously to the
cursor position.

[how]
Since the cursor enable bit is cached there is no need to update the
enablement register if there is no change to it.  This removes the
read-modify-write from the cursor position programming path in HUBP and
DPP, leaving only the register writes.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Sung Lee <sung.lee@amd.com>
Signed-off-by: Aric Cyr <Aric.Cyr@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-01-24 09:56:28 -05:00
Aric Cyr
01130f5260 drm/amd/display: Add hubp cache reset when powergating
[Why]
When HUBP is power gated, the SW state can get out of sync with the
hardware state causing cursor to not be programmed correctly.

[How]
Similar to DPP, add a HUBP reset function which is called wherever
HUBP is initialized or powergated.  This function will clear the cursor
position and attribute cache allowing for proper programming when the
HUBP is brought back up.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Sung Lee <sung.lee@amd.com>
Signed-off-by: Aric Cyr <Aric.Cyr@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-01-24 09:56:22 -05:00
Rafal Ostrowski
63ab80d9ac drm/amd/display: DML2.1 Post-Si Cleanup
[Why]
There are a few cleanup and refactoring tasks that need to be done
with the DML2.1 wrapper and DC interface to remove dependencies on
legacy structures and N-1 prototypes.

[How]
Implemented pipe_ctx->global_sync.
Implemented new functions to use pipe_ctx->hubp_regs and
pipe_ctx->global_sync:
- hubp_setup2
- hubp_setup_interdependent2
- Several other new functions for DCN 4.01 to support newer structures

Removed dml21_update_pipe_ctx_dchub_regs
Removed dml21_extract_legacy_watermark_set
Removed dml21_populate_pipe_ctx_dlg_param
Removed outdated dcn references in DML2.1 wrapper.

Reviewed-by: Austin Zheng <austin.zheng@amd.com>
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Rafal Ostrowski <rostrows@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>
2025-01-10 12:00:34 -05:00
Aurabindo Pillai
a5d258a00b Revert "drm/amd/display: Optimize cursor position updates"
This reverts commit 88c7c56d07c108ed4de319c8dba44aa4b8a38dd1.

SW and HW state are not always matching in some cases causing cursor to
be disabled.

Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-01-06 14:44:28 -05:00
Aric Cyr
787e7be0c9 drm/amd/display: Optimize cursor position updates
[why]
Updating the cursor enablement register can be a slow operation and accumulates
when high polling rate cursors cause frequent updates asynchronously to the
cursor position.

[how]
Since the cursor enable bit is cached there is no need to update the
enablement register if there is no change to it.  This removes the
read-modify-write from the cursor position programming path in HUBP and
DPP, leaving only the register writes.

Reviewed-by: Josip Pavic <josip.pavic@amd.com>
Signed-off-by: Aric Cyr <Aric.Cyr@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>
2025-01-06 14:44:27 -05:00
Karthi Kandasamy
080950cbdd drm/amd/display: Update dc_tiling_info union to structure
[WHY]
The `dc_tiling_info` union previously did not have a field to
specify the active GFX format, assuming only one format would
be used per DCN version. from DCN4+, support for switching
between different GFX formats is introduced, requiring a way
to track which format is currently in use.

[HOW]
Updated the `dc_tiling_info` union to include a new field that
explicitly indicates the currently used GFX format.
This allows the system to determine the active GFX format
and take the correct programming path accordingly.

[Description]
The union `dc_tiling_info` has been updated to support multiple
GFX formats by adding a new field for identifying the active format.
This update ensures that the correct programming path is followed
based on the selected format. All references to `dc_tiling_info`
in the codebase have been updated to reflect the new structure.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Karthi Kandasamy <karthi.kandasamy@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>
2025-01-06 14:44:27 -05:00
Alex Deucher
1fa5c5a317 drm/amd/display: add clear_tiling hubp callbacks
This adds clear_tiling callbacks to the hubp structure that
will be used for drm panic support to clear the tiling on
a display.  hubp3 support from Jocelyn's original patch
and the rest from me.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Lu Yao <yaolu@kylinos.cn>
Cc: Jocelyn Falempe <jfalempe@redhat.com>
Cc: Harry Wentland <harry.wentland@amd.com>
2024-12-18 12:14:00 -05:00
Karthi Kandasamy
ea0553b41b drm/amd/display: expose DCN401 HUBP functions
[Why]
Expose DCN401 HUBP functions for use across other platforms.

[Description]
This change aims to make the DCN401 HUBP functions accessible for
enabling their use in future platform developments.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Karthi Kandasamy <karthi.kandasamy@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>
2024-12-10 10:31:14 -05:00
Jinjie Ruan
570867ef90 drm/amd/display: Make dcn35_hubp_funcs static
The sparse tool complains as follows:

drivers/gpu/drm/amd/amdgpu/../display/dc/hubp/dcn35/dcn35_hubp.c:191:19: warning:
	symbol 'dcn35_hubp_funcs' was not declared. Should it be static?

This symbol is not used outside of dcn35_hubp.c, so marks it static.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-08-23 10:53:39 -04:00
Alvin Lee
ab799c16c9 drm/amd/display: For FAMS2 don't program P-State force from driver
P-State force programming is handled entirely by FW in FAMS2.  Remove
any programming from driver side to prevent incorrect programming from
driver side (which may override FW programming)

Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-08-06 10:37:18 -04:00
Sung Lee
c7b3569b3e drm/amd/display: Fix Cursor Offset in Scaled Scenarios
[WHY]
Cursor position code had improper offsets in scaled modes.

[HOW]
Adjust cursor scaling to account for cursor offsets properly.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Sung Lee <sunglee@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-08-06 10:37:13 -04:00
Alex Hung
be1fb44389 drm/amd/display: Check null pointers before used
[WHAT & HOW]
Poniters, such as dc->clk_mgr, are null checked previously in the same
function, so Coverity warns "implies that "dc->clk_mgr" might be null".
As a result, these pointers need to be checked when used again.

This fixes 10 FORWARD_NULL issues reported by Coverity.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-23 17:07:12 -04:00
George Shen
ac01f6ad71 drm/amd/display: Fix divide by zero in CURSOR_DST_X_OFFSET calculation
[Why]
Certain situations cause pipes to have a recout of 0, such as when the
dst_rect lies completely outside of a given ODM slice.

[How]
Skip calculation that transforms cursor coordinates to viewport space.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-07-01 16:06:53 -04:00
Aurabindo Pillai
78f608d7af drm/amd/display: Enable DCC on DCN401
[WHAT]
Add registers and entry points to enable DCC on DCN4x

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Alex Hung <alex.hung@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>
2024-06-27 17:10:39 -04:00
Alvin Lee
e1e75cf733 drm/amd/display: Program CURSOR_DST_X_OFFSET in viewport space
[WHAT & HOW]
According to register specifications, the CURSOR_DST_X_OFFSET
is relative to the start of the data viewport, not RECOUT space.
In this case we must transform the cursor coordinates passed to
hubp401_cursor_set_position into viewport space to program this
register. This fixes an underflow issue that occurs in scaled
mode with low refresh rate.

Reviewed-by: Nevenko Stupar <nevenko.stupar@amd.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Hung <alex.hung@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>
2024-06-27 17:10:37 -04:00
Nevenko Stupar
ee8287e068 drm/amd/display: Fix cursor issues with ODMs and HW rotations
[WHY & HOW]
Current code for cursor positions does not work properly
with different ODM options and HW rotations like ODM
2to1, 3to1 and 4to1, and has different issues depending on
angle of HW rotations.

[HOW]
Fixed these issues so to work properly when ODM is used with HW rotations.

Reviewed-by: Sridevi Arvindekar <sridevi.arvindekar@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Nevenko Stupar <nevenko.stupar@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-06-27 17:10:36 -04:00
Pinninti
91b586cc05 drm/amd/display: Refactor HUBP into component folder.
[why]
cleaning up the code refactor requires hubp to be in its own component.

[how]
move all files under newly created hubp folder and fixing the makefiles.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Pinninti <bpinnint@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-29 14:39:33 -04:00
Bhuvana Chandra Pinninti
0cfdfebedc drm/amd/display: Refactor HUBP into component folder.
[why]
cleaning up the code refactor requires hubp to be in its own component.

[how]
move all files under newly created hubp folder and fixing the makefiles.

Reviewed-by: Martin Leung <martin.leung@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Bhuvana Chandra Pinninti <bhuvanachandra.pinninti@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-05-08 15:17:03 -04:00