jpeg_v1_0_de...g_emit_fence(9)

📦 version 7.3.1, in nixpkgs unstable

✨ jpeg_v1_0_decode_ring_emit_fence ✨

okay so bestie, welcome to the Kernel API Manual page for jpeg_v1_0_de...g_emit_fence(9) — yes the title got truncated in the header, that's just how it is, we don't make the rules 💅. This is amdgpu JPEG ring lore and honestly it's short but it eats.

🌸 NAME 🌸

jpeg_v1_0_decode_ring_emit_fence — emit a fence & trap command 🎀

(no cap, that's literally the whole job description. it emits an fence & trap command. "an fence" — iconic grammar, we're keeping it, it's part of the vibe now 💀)

🦋 SYNOPSIS 🦋

void jpeg_v1_0_decode_ring_emit_fence (struct amdgpu_ring *ring , u64
addr , u64 seq , unsigned flags );

look at her. returns void — she gives nothing back, she just does things. main character energy fr fr 👑

🌈 ARGUMENTS 🌈

  • ring — an amdgpu_ring pointer 🫶. the ring in question. the venue. the stage.
  • addr — address ✨. that's the whole description. address. love that for us.
  • seq — sequence number 🔢. the order things go in, bestie.
  • flags — fence related flags 🚩. flags, but specifically the fence-related kind. iykyk.

💖 DESCRIPTION 💖

so what does she actually do? Write a fence and a trap command to the ring. that's it. that's the whole paragraph. write a fence and a trap command to the ring. two commands, one ring, zero notes 🌸

not me expecting more detail and getting exactly one sentence 😭 — but honestly? efficiency queen. she said what she said.

🔥 SEE ALSO 🔥

the source lives at kernel file ./drivers/gpu/drm/amd/amdgpu/jpeg_v1_0.c — go read it if you want the real tea 🍓

and the whole friend group, in order, no skips:

(and yes, that last one is jpeg_v1_ + dec_ring_parse_cs — not decode. not a typo on my end, that's genuinely how it's spelled. character for character, always 💜)

🫶 a little note before you go: everything above is verbatim from the original — same flags, same types, same paths, same cross-references. i changed the vibe, not the facts. periodt.

anyway that's the page!! ty for coming to my TED talk, go forth and emit your fences responsibly 🧚💅

— signed off from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and still answering to jpeg_v1_0_de...g_emit_fence(9) ⭐

📦 where this page comes from