sdma_v7_1_ring_test_ring(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sdma_v7_1_ring_test_ring(9) — from the Kernel API Manual, bestie 🎀

okay so picture this: it's a kernel API manual page, the title is sdma_v7_1_ring_test_ring(9), and it is lowkey the vibe check for the AMDGPU SDMA engine. let's get into it ✨

🦋 NAME 🦋

sdma_v7_1_ring_test_ring — literally just a simple async dma engine test, no cap 💫

✨ SYNOPSIS ✨

int sdma_v7_1_ring_test_ring (struct amdgpu_ring *ring );

that's it. that's the whole signature. iconic 🫶

🎀 ARGUMENTS 🎀

  • ring — the amdgpu_ring structure that's holding all the ring information, she's the main character here 👑

🔥 DESCRIPTION 🔥

so what does she do? she tests the DMA engine by, like, actually using it to write a value to memory. real "prove it by doing it" energy fr fr 💅

returns 0 for success, and an error for failure. that's the whole deal. periodt. 🌸

ngl bestie, this is a test function — it's not out here doing your taxes, it's just poking the engine to make sure it's alive 🔍

🌈 SEE ALSO 🌈

the kernel file where all this lives, first of all:

  • ./drivers/gpu/drm/amd/amdgpu/sdma_v7_1.c

and then, the whole friend group 🫶 (yes, all of them, i'm not skipping a single one):

and that's the page!! 💖 this little baddie comes to you from ./drivers/gpu/drm/amd/amdgpu, dated October 2026 — mwah, catch you on the next man page, bestie 😭💜

📦 where this page comes from