drm/amd/display: Test GFX11/GFX12 plane modifiers

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[WHAT]
Add KUnit tests for amdgpu_dm_plane_get_plane_modifiers() on GFX11
(64K-first and 256K-first) and GFX12 devices.

Add a register-read mock (dm_test_gfx11_reg_ctx and friends) and
device-setup helpers so the GFX11 DCC modifier ordering can be checked
without real hardware.

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>

...

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

parent 05b3588830

commit f160af13dc

1 changed files with 179 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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