drm/amd/display: Introduce dc_update_state unified commit interface

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[Why]
dc_update_planes_and_stream() is typed against surface/stream arrays only,
leaving no extensible slot for future object classes. The public entry
point names and signatures need to stay stable as new object classes are
added.

[How]
Introduce dc_update_state() and dc_check_state_update(), both taking a
dc_state_update root object. dc_update_state() routes stream and plane
updates through the existing pipeline. Keep dc_update_planes_and_stream()
and dc_check_update_surfaces_for_stream() as shims that delegate.

Change dc_update_state_init() to take a const dc_state_update* and rename
dc_update_planes_and_stream_{init,prepare,execute,cleanup} ->
dc_update_state_{init,prepare,execute,cleanup}.

Rename surface_update_type -> dc_update_type and
surface_update_descriptor -> dc_update_descriptor.

Reviewed-by: Dominik Kaszewski <dominik.kaszewski@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Wenjing Liu 2026-06-24 16:20:34 -04:00 • committed by Alex Deucher

parent 7ae85e64d9

commit a7e804e427

3 changed files with 155 additions and 73 deletions

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188

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

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19

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

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21

drivers/gpu/drm/amd/display/dc/dc_stream.h

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