drm/amd/display: Add 3DLUT DMA broadcast support

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[WHY&HOW]
A single HUBP can be used to fetch 3DLUT and broadcast to a
single HUBP.  Add logic to select the top pipe for a given
plane and use it's HUBP as the broadcast source for multiple
MPC's.

Reviewed-by: Ilya Bakoulin <ilya.bakoulin@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>

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This commit is contained in:

Dillon Varone 2026-03-07 05:53:03 +00:00 • committed by Alex Deucher

parent 60e8ffaf96

commit 7d59465de3

4 changed files with 67 additions and 48 deletions

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2

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

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106

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

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3

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

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2

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

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