drm/amd/display: Test plane atomic check and hooks

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[WHAT]
Add KUnit tests for amdgpu_dm_plane_atomic_async_check(),
amdgpu_dm_plane_atomic_check(), amdgpu_dm_plane_panic_flush() and the
DRM plane reset, duplicate-state and destroy-state hooks.

Add the dm_test_init_atomic_check_state() helper and plane reset vtable
used by the new tests.

Assisted-by: Copilot:Claude-Opus-4.8 GPT-5.5
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: George Zhang <george.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Alex Hung 2026-06-26 17:35:52 -06:00 • committed by Alex Deucher

parent e0e426f10a

commit 4133f1caf3

3 changed files with 482 additions and 9 deletions

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25

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

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9

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.h

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457

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

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