xe_exec_queu...st_fence_set(9)

📦 version 7.3.1, in nixpkgs unstable

💅 xe_exec_queue_last_fence_set

okay so bestie, this is a page straight outta the Kernel API Manual — we're deep in kernel-doc territory, (9) section and all, and it's literally called xe_exec_queue_last_fence_set. Yes, the manpage title got truncated by whatever tool generated it (xe_exec_queu...st_fence_set), and no, we are not fixing it, it's part of the vibe now. 🎀

✨ NAME ✨

xe_exec_queue_last_fence_set — set last fence. That's it, that's the whole job. Short king of a name, does exactly what it says on the tin. 👑

🦋 SYNOPSIS 🦋

void xe_exec_queue_last_fence_set (struct xe_exec_queue *q , struct
     xe_vm *vm , struct dma_fence *fence );

look at her. three args, returns nothing, absolutely zero thoughts behind those eyes. void return, so no comeback era, she just does the thing and leaves. 💅

🌸 ARGUMENTS 🌸

  • q — the exec queue. the main character of this whole operation, ngl.
  • vm — the VM that the engine does a bind or exec for. she's the context, the setting, the world-building. 🫶
  • fence — the fence. that's it, that's the description. iconic minimalism, no notes. ✨

💖 DESCRIPTION 💖

So what's actually happening? You're setting the last fence for the engine. simple. clean. slay.

But here's the part you cannot skip, bestie, because this is the ⚠️ important ⚠️ bit:

this call increases the reference count for fence. so when you're closing the engine, you must call xe_exec_queue_last_fence_put — otherwise that refcount is just sitting there, un-decremented, living rent free. 😭 don't do that to her. clean up after yourself. periodt.

🌈 SEE ALSO 🌈

okay this list is long — like, genuinely a whole group chat of exec queue functions — but they all matter, so here's the entire squad, no cap. every single one, in order: 🧚

like I said. whole squad. 🔥

🍓 sign-off 🍓

this lil masterpiece lives in ./drivers/gpu/drm/xe (yes, the October 2026 edition, she's fresh 💜), and it's filed under the section-9 name xe_exec_queu...st_fence_set(9) — truncated title and all, we stan a consistent filename. go set some fences, bestie. bye!! 🌸🦋💖

📦 where this page comes from