dm_test_crt...e_irq_enable(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dm_test_crtc_set_vupdate_irq_enable(9) — Kernel API Manual energy ✨

okay so bestie, you've stumbled into the Kernel API Manual and honestly? good for you. this one's a KUnit test from the amdgpu display crew and it's literally just here to make sure one tiny little IRQ toggle behaves itself 🎀

✨ NAME ✨

dm_test_crtc_set_vupdate_irq_enable — the test that checks vupdate irq enable/disable actually succeeds 🫶

🌸 SYNOPSIS 🌸

void dm_test_crtc_set_vupdate_irq_enable (struct kunit *test );

like, that's the whole signature. no cap. 💅

🦋 ARGUMENTS 🦋

  • test — the KUnit test context 🧪 that's it, that's the one thing it takes, she's low maintenance

💖 DESCRIPTION 💖

so here's the vibe check 🔥 — you've got an OTG instance assigned and a DC whose IRQ service actually accepts the request. under those conditions, enabling the vupdate IRQ and disabling it must both succeed, meaning both of them return 0.

that's the whole test. iconic. no notes. ⭐

bestie pls note: it's return 0 or bust — the test is checking for success on both the enable and the disable, so if either one throws attitude, this thing is not passing 💀

🎀 SEE ALSO 🎀

first up, the literal source she lives in — Kernel file:

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

and then, the whole entire friend group 💜 (yes i'm listing all of them, they're all main characters):

okay that's the whole page bestie, go forth and test your vupdate irq 💖✨

this gem dropped from the source path ./drivers/gpu/drm/amd/display/... and is dated October 2026 — see you in the next one, mwah 🎀💅

📦 where this page comes from