drm/amd/display: Refactor DC update checks

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[WHY&HOW]
DC currently has fragmented definitions of update types.  This changes
consolidates them into a single interface, and adds expanded
functionality to accommodate all use cases.
- adds `dc_check_update_state_and_surfaces_for_stream` to determine
  update type including state, surface, and stream changes.
- adds missing surface/stream update checks to
  `dc_check_update_surfaces_for_stream`
- adds new update type `UPDATE_TYPE_ADDR_ONLY` to accomodate flows where
further distinction from `UPDATE_TYPE_FAST` was needed
- removes caller reliance on `enable_legacy_fast_update` to determine
  which commit function to use, instead embedding it in the update type

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Signed-off-by: Chuanyu Tseng <chuanyu.tseng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Dillon Varone 2026-03-05 16:42:29 -05:00 • committed by Alex Deucher

parent 52024a94e7

commit c24bb00cc6

4 changed files with 201 additions and 299 deletions

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6

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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2

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c

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472

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

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20

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

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