dm_test_dmu...ialized_dmub(9)

📦 version 7.3.1, in nixpkgs unstable

🦋 dm_test_dmub_hw_resume_initialized_dmub(9) — from the Kernel API Manual ✨

okay so bestie, this little page lives in the Kernel API Manual, and the star of the show is dm_test_dmub_hw_resume_initialized_dmub — a KUnit test that checks what resume does when the hardware is already initialized. she's niche, she's specific, she's iconic 💅

💖 NAME 💖

dm_test_dmub_hw_resume_initialized_dmub — literally the test that makes sure resume waits for an initialized DMUB, no cap.

🎀 SYNOPSIS 🎀

void dm_test_dmub_hw_resume_initialized_dmub (struct kunit *test );

🌸 ARGUMENTS 🌸

  • test — the KUnit test context. that's her whole personality here 🫶

✨ DESCRIPTION ✨

so here's the vibe: when the fake DMUB service is like "bestie, the hardware is already initialized" 🫡 — resume should only wait for firmware readiness and skip the full reinitialization. that's it, that's the whole test. no extra credit, no dramatic re-init, just the wait and nothing more. periodt 💯

🔥 SEE ALSO 🔥

first up, the kernel file where all this lives (iykyk):

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

and now the whole friend group — every single one of these cuties, in order, no skipping:

that's the whole page, bestie 💜 and for the credits moment: this one ships from ./drivers/gpu/drm/amd/display/..., dated October 2026 🗓️ — go forth and test those DMUB resumes, mwah 🧚‍♀️⭐

📦 where this page comes from