drm/amd/display: Add cursor offload abort to the new HWSS path

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[HOW]
If cursor attributes or position are passed into DC via a stream update
and we take the newer HWSS paths then it's possible that the update
races with cursor offloading if it's enabled.

This can cause the cursor to remain on the screen if no further updates
come in if it results in HW cursor support being disabled.

[HOW]
Add the abort into the HWSS path so that cursor offloading doesn't
attempt to reprogram the cursor with outdated params.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Nicholas Kazlauskas 2025-11-11 13:39:52 -05:00 • committed by Alex Deucher

parent a76d6f2c76

commit f7352d10f8

3 changed files with 39 additions and 0 deletions

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24

drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c

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2

drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c

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13

drivers/gpu/drm/amd/display/dc/hwss/hw_sequencer.h

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