dm_test_dmub...ect_callback(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 NAME 🌸

okay so bestie, welcome to the Kernel API Manual page for dm_test_dmub...ect_callback(9) — and the actual star of the show is dm_test_dmub_outbox1_low_irq_direct_callback 💅✨ It's the "Test direct callback dispatch" test, and yes she's iconic for it.

🦋 SYNOPSIS 🦋

void dm_test_dmub_outbox1_low_irq_direct_callback (struct kunit *test );

literally that's the whole signature. copy it exactly, no cap 🫶

🎀 ARGUMENTS 🎀

  • test — the KUnit test context 💖 like, it's the little test-world she's running inside, that's it, that's the whole argument.

⭐ DESCRIPTION ⭐

okay so here's the vibe: notifications are enabled with a registered callback, and thread offload is disabled 🚫 So the callback gets invoked directly from the IRQ handler</> — yes, straight from the IRQ handler, no detour, no offload queue, she goes straight to the callback. main character energy fr fr 👑

lowkey important: the "direct" part is literally the whole point — offload is off, so there's no thread middleman in this test 💀

🌈 SEE ALSO 🌈

bestie, the friend group is HUGE, so buckle up — first the file she lives in, then the entire squad 🫶

  • Kernel file ./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_irq_test.c — that's home base 🏠

and now, in order, the whole crew:

like… that's a whole group chat right there 😭 every single one of them, no skips, no "and others", we list them ALL because we're thorough like that 💅

and that's the page, bestie 🫶 mwah 💋

where she came from: ./drivers/gpu/drm/amd/display/... and she's dated October 2026 — so mark your calendar, dm_test_dmub...ect_callback(9) is out here living her best life 🌟✨

📦 where this page comes from