drm/amd/display: Add KUnit tests for amdgpu_dm_crtc_helper_atomic_check

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why:
Expand CRTC KUnit coverage to the atomic_check helper so its branch
behaviour is exercised and protected against regressions.

how:
Expose amdgpu_dm_crtc_helper_atomic_check for KUnit (STATIC_IFN_KUNIT +
EXPORT_IF_KUNIT + header declaration). Add tests covering the no-stream
(reset) pass, enabled-CRTC-without-primary rejection, async-flip non-fast
rejection, the VRR primary-plane pull path, and DC stream validation
pass/fail using timing_generator and link_service stubs.

Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Bhawanpreet Lakha 2026-07-23 17:43:34 -04:00 • committed by Alex Deucher

parent 604a3017dd

commit 02be6d6827

3 changed files with 349 additions and 1 deletions

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3

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

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2

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

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345

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

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