dm_test_crtc...source_valid(9)

📦 version 7.3.1, in nixpkgs unstable

✨ dm_test_crtc_verify_crc_source_valid — from the Kernel API Manual (9) section, bestie ✨

Okay so this is a page straight out of the Kernel API Manual, section 9 — yes the test/API one — and the star of the show is dm_test_crtc_verify_crc_source_valid. She's a KUnit test function, she's in the AMD display driver's corner of the kernel, and she has one very specific job. Let's get into it 💅

🌸 NAME 🌸

dm_test_crtc_verify_crc_source_valid — literally just testing that valid CRC source verification works the way it's supposed to 🎀

🦋 SYNOPSIS 🦋

void dm_test_crtc_verify_crc_source_valid (struct kunit *test );

💖 ARGUMENTS 💖

  • test — the KUnit test context, aka the little bubble this test runs inside 🫶

🧚 DESCRIPTION 🧚

So here's the vibe: this test verifies that valid source strings come back as success, and that they request three CRC values. That's it, that's the whole assignment. Three CRC values, success, no drama ✨

No cap, it's a small test but she's doing her part. Valid sources get the green checkmark, and the count lands on three. Periodt 💅

👑 SEE ALSO 👑

The kernel file this lives in, for when you want to go read the source yourself (iconic behaviour, honestly):

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

And the whole friend group of related tests — she does not exist in isolation, bestie, look at this roster 🔥

And that's the whole page, babes 🌈 Quick sign-off so you have the receipts: this one comes from ./drivers/gpu/drm/amd/display/..., dated October 2026, and it's filed under dm_test_crtc...source_valid(9). Go forth and test those CRC sources 💜🍓

📦 where this page comes from