drm/amd/display: Test GFX6-8 modifier list generation

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[WHAT]
Add KUnit tests for amdgpu_dm_plane_get_plane_modifiers() and
amdgpu_dm_plane_format_mod_supported() on a GFX6-8 device. The exposed
list holds one macro tiled modifier per distinct bits per pixel plus a
micro tiled and a linear one, and a listed modifier is validated through
the GFX6-8 specific check.

Add dm_test_mods_count() for the list length and use it in the existing
sentinel scans.

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 17:10:37 -06:00 • committed by Alex Deucher

parent 355c919a72

commit 49906ba608

1 changed files with 76 additions and 7 deletions

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

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