dm_test_dmub...me_full_init(9)

📦 version 7.3.1, in nixpkgs unstable

✨ dm_test_dmub...me_full_init(9) ✨

okay bestie, welcome to the Kernel API Manual 💖 this one's a KUnit test page and it's honestly so niche but so important, stay with me 🫶

🌸 NAME 🌸

dm_test_dmub_hw_resume_full_init — the test that checks resume does a full init when nobody's initialized anything yet. no cap.

⭐ SYNOPSIS ⭐

void dm_test_dmub_hw_resume_full_init (struct kunit *test );

that's it. that's the whole signature. iconique 💅

🎀 ARGUMENTS 🎀

  • test — the KUnit test context, fr fr. it's the little suitcase of test state that gets passed around everywhere.

🦋 DESCRIPTION 🦋

okay so picture this: the fake DMUB service is out here reporting that the hardware is not yet initialized 😭 and the vibes are very "we just got here."

so when resume runs, it should not just shrug and move on — it needs to keep going all the way into a full dm_dmub_hw_init and actually create the DC DMUB server ✨

basically: uninitialized hardware on resume = go build the whole thing. main character behavior honestly 👑

the way that this test is literally just vibes-checking that the init path doesn't get skipped 💀

🌈 SEE ALSO 🌈

first up, the actual kernel file, at exactly this path:

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

and now the whole friend group of sibling tests, in order, because we do not leave anyone out 🫶:

like, the entire roster. obsessed 🍓

and that's the page!! signing off with the source path ./drivers/gpu/drm/amd/display/... and the date October 2026, all filed under the manual name dm_test_dmub...me_full_init(9) 💜 go forth and test your DMUB resume paths, bestie, you got this 🧚✨

📦 where this page comes from