dm_test_modifier_has_dcc(9)

📦 version 7.3.1, in nixpkgs unstable

✨ dm_test_modifier_has_dcc(9) ✨

okay so bestie, welcome to the kernel API manual, section 9 — this one's about dm_test_modifier_has_dcc, and it's lowkey a little cutie. tiny page, big "does this actually work" energy 🎀

🦋 SYNOPSIS 🦋

void dm_test_modifier_has_dcc (struct kunit *test );

that's it. that's the whole thing. no return value, no drama 💅

🌸 ARGUMENTS 🌸

  • test — the KUnit test context. literally the little test-scenario object that KUnit hands you so you can, y'know, be a test. that's her whole job 🫶

💖 DESCRIPTION 💖

okay so what does this actually do? it verifies whether the DCC detection actually works — for linear modifiers and for AMD DCC modifiers both. that's the vibe check. that's the mission. no cap 🔥

it's giving "unit test that checks the helper isn't lying to us." iconic behavior honestly 👑

and btw — it's void, so don't come looking for a return value. the test result lives in test, not in your hands. periodt 💀

🌈 SEE ALSO 🌈

🧚 the kernel file

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

⭐ her friends (aka the whole test squad, don't leave anyone out)

and that's the whole page, bestie!! 🍓 no notes, she ate 💅

one last lil sign-off 💜 — this one comes from the kernel source tree at ./drivers/gpu/drm/amd/display/..., dated October 2026, and it's the dm_test_modifier_has_dcc(9) page, obviously 🌸 go forth and verify those modifiers, ily 🫶✨

📦 where this page comes from