cik_sdma_ring_test_ring(9)

📦 version 7.3.1, in nixpkgs unstable

✨ cik_sdma_ring_test_ring ✨

okay so bestie, welcome to the Kernel API Manual 💖 — this one's called cik_sdma_ring_test_ring, and it is literally the sweetest little vibe-check function in the whole AMD GPU driver. it's a simple async dma engine test, no cap 🎀

🌸 SYNOPSIS 🌸

int cik_sdma_ring_test_ring (struct amdgpu_ring *ring );

🦋 ARGUMENTS 🦋

  • ring — the amdgpu_ring structure holding ring information 🫶 that's it, that's the whole argument list, she's low-maintenance.

👑 DESCRIPTION 👑

so what does she actually do? she tests the DMA engine by writing using it to write an value to memory — yes bestie, the engine writes, the engine is the whole point, we're putting her to work 💅 (specifically this is the CIK flavour of things).

Returns 0 for success, error for failure. that's the vibe check: 0 = slay, error = not slay 😭 fr fr.

💜 SEE ALSO 💜

the kernel file herself lives at ./drivers/gpu/drm/amd/amdgpu/cik_sdma.c — go say hi 🧚

and here's the whole squad, all of them, in order, no one left behind:

bestie this one lives under ./drivers/gpu/drm/amd/amdgpu 🌈

that's the whole page!! 💖 sign-off time: this cutie is dated October 2026, brought to you by the manual squad as cik_sdma_ring_test_ring(9) — mwah, go test some rings, iykyk 💅✨🍓

📦 where this page comes from