dm_test_pla...opies_fields(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dm_test_plane_duplicate_state_copies_fields(9) — a Kernel API Manual moment

okay so bestie, welcome to the Kernel API Manual, and today's main character is dm_test_plane_duplicate_state_copies_fields(9). it's giving "tiny test function, huge friend group" because the SEE ALSO list is literally a whole squad 🫶

✨ NAME ✨

dm_test_plane_duplicate_state_copies_fields — verify state duplication, no cap 💅

🌸 SYNOPSIS 🌸

void dm_test_plane_duplicate_state_copies_fields (struct kunit *test );

🎀 ARGUMENTS 🎀

  • test — the KUnit test context. that's it. that's the whole argument. she's low maintenance 👑

🦋 DESCRIPTION 🦋

so here's the vibe: this test verifies that amdgpu_dm_plane_drm_plane_duplicate_state allocates a new state and copies over the transfer-function and HDR-multiplier fields from the current plane state — but only when there's no DC state or color blob attached. literally just checking that the duplication actually duplicates the right stuff 🙈✨

like, no DC state? no color blob? cool, the fields should still ride along. and this test makes sure they do. iconique behavior honestly.

🔥 SEE ALSO 🔥

the friend group is massive, so buckle up bestie. kernel file first:

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

and then the whole extended fam, all on (9):

like… name a more supportive cast, i'll wait 💀💖

okay that's the whole page bestie, go forth and duplicate state responsibly 🌈✨

this cutie came out of ./drivers/gpu/drm/amd/display/... in October 2026, live and direct from the Kernel API Manual. bye diva, see u at the next test run 💅🎀🦋
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