sdma_v4_4_2_ring_emit_ib(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

✨ sdma_v4_4_2_ring_emit_ib β€” kernel API manual, bestie edition πŸŽ€

okay so you're deep in the amdgpu SDMA mines and you found sdma_v4_4_2_ring_emit_ib, a section 9 kernel API page. no cap, she's a tiny function with a big job. let's get into it πŸ’…


🌸 NAME 🌸

sdma_v4_4_2_ring_emit_ib β€” schedule an IB on the DMA engine ✨


πŸ¦‹ SYNOPSIS πŸ¦‹

void sdma_v4_4_2_ring_emit_ib (struct amdgpu_ring *ring , struct
amdgpu_job *job , struct amdgpu_ib *ib , uint32_t flags );

literally that's the whole signature, copy it exactly, don't @ me 🫢


πŸ’– ARGUMENTS πŸ’–

  • ring β€” an amdgpu ring pointer πŸ’« the ring in question, bestie
  • job β€” the job to retrieve vmid from πŸ‘‘ yes, the vmid comes from here
  • ib β€” the IB object to schedule 🌟
  • flags β€” unused πŸ™ˆ (she's just there for the vibes, don't pass anything meaningful expecting it to do stuff)

🌈 DESCRIPTION 🌈

Schedule an IB in the DMA ring. that's it, that's the whole description ✨ like, the function's entire personality is "put this IB on the DMA ring." iconic, concise, lowkey slay πŸ”₯


πŸ’œ SEE ALSO πŸ’œ

the kernel file lives at ./drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c β€” go read her for the real tea πŸ“

and here's the whole friend group, all of them section 9, all of them in the same file's orbit:


πŸ’€ quick vibe check: flags is unused. that's not me being shady, that's just what the page says. fr fr.

that's the whole page, bestie πŸ§šπŸ’œ sourced from the kernel file under ./drivers/gpu/drm/amd/amdgpu, October 2026, manual name sdma_v4_4_2_ring_emit_ib(9) β€” stay hydrated, keep your pointers valid, and slay your DMA ring scheduling βœ¨πŸ‘‘πŸŽ€

πŸ“¦ where this page comes from