xe_exec_queu...st_fence_get(9)

📦 version 7.3.1, in nixpkgs unstable

💅 xe_exec_queue_tlb_inval_last_fence_get — the Kernel API Manual tea 🫖

okay bestie, so this is a page out of the Kernel API Manual (yes, that manual, the <italic>9</italic> one) and it's all about one little function with a very long name. stick with me 💖

✨ NAME ✨

xe_exec_queue_tlb_inval_last_fence_get — literally just "get the last fence for TLB invalidation." that's the whole vibe. no cap 🎀

🌸 SYNOPSIS 🌸

struct dma_fence * xe_exec_queue_tlb_inval_last_fence_get (struct
xe_exec_queue *q , struct xe_vm *vm , unsigned int type );

three args, one struct dma_fence * coming back at you. slay 💅

🦋 ARGUMENTS 🦋

  • q — the exec queue. the main character, honestly 👑
  • vm — the VM that the engine does a bind for. she's doing bind things, don't worry about it 🌈
  • type — either the primary or the media GT. pick your fighter 🥊

💜 DESCRIPTION 💜

so what does it actually do? it gets the last fence. and — important detail, bestie — it takes a ref 🔥 that's it, that's the whole description, and honestly? iconic. short and confident. periodt.

⭐ RETURN ⭐

what you get back depends on the vibe check:

  • last fence if it's not signaled 💖
  • dma fence stub if it is signaled 😭

🧚 SEE ALSO 🧚

okay so this is the part where the man page goes absolutely feral and links like every sibling this function has. buckle up, we're going down the whole family tree 🌳

the kernel file it lives in is ./drivers/gpu/drm/xe/xe_exec_queue.c — that's home base, iykyk 🏠

and then, in order, no skipping (i would never):

like i said. the whole family. ate and left no crumbs 🍓

fr fr bestie, this page comes straight out of ./drivers/gpu/drm/xe and it's dated October 2026 — so yes, we're reading docs from the future, that's just how we roll around here ⏰✨

k byeee, go take that ref responsibly 💅🫶

📦 where this page comes from