dm_test_atom..._no_dc_state(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dm_test_atomic_check_no_dc_state — Kernel API Manual ✨

okay so bestie, welcome to the <pink>Kernel API Manual</pink> 💖 and specifically to dm_test_atomic_check_no_dc_state(9). yes the name is a mouthful, no we're not shortening it, it's iconic actually.

🎀 NAME 🎀

dm_test_atomic_check_no_dc_state — literally just verifying that when the DC plane state is missing, things still succeed. no drama, no crash, just vibes ✅

✨ SYNOPSIS ✨

void dm_test_atomic_check_no_dc_state (struct kunit *test );

that's it. that's the whole signature. she's lowkey tiny 🦋

🌸 ARGUMENTS 🌸

  • test — the KUnit test context, aka the little gossip group chat where the test results get reported 💬

💜 DESCRIPTION 💜

so the whole point here: we're checking that when the DM plane state has no DC plane state attached to it, atomic_check bails out early — before it goes any deeper into validation. that's the vibe check. early exit, no deeper validation, success. periodt 🙌

🔥 SEE ALSO 🔥

📁 Kernel file

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

🫶 the whole friend group (yes, all of them, I'm not dropping a single one)

💀 and yes, before you ask — that list is genuinely that long. every single one of those tests is a real one. no cap. read them, love them, they're all doing their part in amdgpu_dm_plane_test.c. 😭

./drivers/gpu/drm/amd/display/... · October 2026 · dm_test_atom..._no_dc_state(9) — that's the source, the version and the date bestie, we stan a documented footer 🫶✨ slay, go forth and test your plane states 💅👑

📦 where this page comes from