dm_test_val...smatch_fails(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dm_test_val...smatch_fails(9) — Kernel API Manual ✨

okay so bestie, welcome to the group chat for dm_test_validate_dcc_independent_64b_mismatch_fails — a real one from the Kernel API Manual, and honestly it's giving "tiny test, huge name" energy but we stan. 🎀

🌸 NAME 🌸

dm_test_validate_dcc_independent_64b_mismatch_fails — Verify the 64B compatibility check. That's it, that's the whole vibe check. 💖

✨ SYNOPSIS ✨

void dm_test_validate_dcc_independent_64b_mismatch_fails (struct kunit
test );

like, she takes one thing and returns absolutely nothing. no cap. 🫶

🦋 ARGUMENTS 🦋

  • test — KUnit test context. that's the whole parameter list, and yes it's just the one. she's lowkey low-maintenance. 💅

🔥 DESCRIPTION 🔥

So here's the tea: this test verifies if validation fails when independent_64b_blks values do not match. 👑

That's literally the entire plot. mismatched independent_64b_blks values walk in → validation should be like "nope, not today" → test passes. it's giving "chaos is the point" and honestly? iconic. ✨

🌈 SEE ALSO 🌈

buckle up bestie, the friend group is large 🫶 — first off, the kernel file itself lives at:

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

and then, in the order they were introduced to us:

like I said. huge friend group. drink some water before you click through all of those 🍓💀

💜 bestie note: this one's a test, so just know that validation is supposed to fail here — mismatched independent_64b_blks = a failed validation = a happy test. don't go "fixing" it. 🙈

and that's the whole page !! this lil' cutie comes from ./drivers/gpu/drm/amd/display/..., dated October 2026, and it's the dm_test_val...smatch_fails(9) page from the Kernel API Manual. go forth and slay your DCC validation, queen 👑🦋💖

📦 where this page comes from