sdma_v3_0_start(9)

📦 version 7.3.1, in nixpkgs unstable

💖 sdma_v3_0_start — like, the whole kernel API manual energy, but make it make sense 💖

okay bestie, so this page lives in the Kernel API Manual (not a command you type, no cap, it's a kernel function 💅) and it's literally called sdma_v3_0_start. let's get into it 🫶

✨ NAME ✨

sdma_v3_0_start — the glow-up moment where we setup and start the async dma engines ⚡🎀

🌸 SYNOPSIS 🌸

int sdma_v3_0_start (struct amdgpu_device *adev );

that's it, that's the whole signature. one arg, one int back. main character energy honestly 👑

🦋 ARGUMENTS 🦋

  • adev — an amdgpu_device pointer. yes. that's the entire description. girlies in drivers/gpu/drm/amd/amdgpu were not feeling chatty that day 🙈💀

🎀 DESCRIPTION 🎀

so what does it do? it sets up the DMA engines and enables them, specifically for VI 🧚✨

and the return vibe check:

  • returns 0 for success — slay 💅
  • returns error for failure — not slay, but at least you know 😭
ngl this is the short one. the description is literally two sentences. but every word of it is here, periodt 🔥

🌈 SEE ALSO 🌈

the kernel file, in all its glory:

./drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c

and the whole squad of sibling functions (yes all of them, i'm not skipping a single one 🫶):

💜 tiny sign-off from the ./drivers/gpu/drm/amd/amdgpu corner of the universe, dated October 2026 — that's where this page comes from and when it was stamped, okay? iconic. bye bestie, go start those async dma engines 💜✨
📦 where this page comes from