dm_test_fil...lidate_fails(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dm_test_fil...lidate_fails(9) — a whole KUnit baddie 💅

okay bestie, so this is a page from the Kernel API Manual (yes THE Kernel API Manual, main character energy ✨) and it's about one very specific little test function. grab a boba, we're doing this 🧋

🌸 NAME 🌸

dm_test_fill_gfx9_plane_attributes_validate_fails — the one that verifies the GFX9 error path. that's it. that's the whole vibe check 💀

✨ SYNOPSIS ✨

void dm_test_fill_gfx9_plane_attributes_validate_fails (struct kunit *test );

no return value, no drama, void and unbothered 😌

🎀 ARGUMENTS 🎀

  • test — the KUnit test context, aka the little backstage pass every KUnit test gets handed 🫶

🦋 DESCRIPTION 🦋

so what does it actually do, you ask? it verifies whether GFX9 modifier parsing returns validation errors from the shared DCC validation helper. that's literally the whole job. it walks in, pokes the parser, and confirms the validation errors come back like they're supposed to 🔥

it's giving "quality assurance but make it fashion" ngl 💅

👑 SEE ALSO 👑

the whole friend group, fr fr — every single one of these babies is invited to the group chat 🌈

and the source file itself, the origin story 💖 — Kernel file:

./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_plane_test.c
ngl there are like 70+ siblings in that SEE ALSO list and every last one of them is iconic in their own way 🫶 iykyk

and that's the page!! sourced from ./drivers/gpu/drm/amd/display/..., dated October 2026, version whatever-the-kernel-ships-with-that-month 💜 mwah, go read the other 73 test pages bestie, slay, periodt 🎀✨🦋

📦 where this page comes from