drm/amd/display: Test plane state duplicate and destroy

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[WHAT]
Add KUnit tests for amdgpu_dm_plane_drm_plane_duplicate_state() and
amdgpu_dm_plane_drm_plane_destroy_state() covering the resource paths.
Duplicating a state shares every color blob and takes an extra reference
on the DC plane state, and destroying one drops a reference on each.

Assisted-by: Copilot:Claude-Opus-5
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ivan Lipski <ivan.lipski@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Alex Hung 2026-08-11 17:08:06 -06:00 • committed by Alex Deucher

parent ba495959a5

commit 3dcd57191e

1 changed files with 113 additions and 0 deletions

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

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