amdgpu_fence_wait_polling(9)

📦 version 7.3.1, in nixpkgs unstable

💅 amdgpu_fence_wait_polling — from the Kernel API Manual bestie 🎀

okay so real talk, this is a page straight out of the Kernel API Manual, and it's all about amdgpu_fence_wait_polling — the little function that just sits there and spins until your fence behaves. busy-waiting queen behavior, honestly. ✨

🌸 NAME 🌸

amdgpu_fence_wait_polling — busy wait for givn sequence number

(and yes, "givn" is literally what it says, we're keeping it, it's giving handwritten notes energy 💀)

🦋 SYNOPSIS 🦋

signed long amdgpu_fence_wait_polling (struct amdgpu_ring *ring ,
uint32_t wait_seq , signed long timeout );

✨ ARGUMENTS ✨

  • ring — the ring index that the fence is associated with 🌀 like, which ring's fence are we talking about, bestie
  • wait_seq — the sequence number to wait on 🔢 the one we're stanning until it shows up
  • timeout — the timeout for waiting, measured in usecs ⏳ yes, microseconds, so don't blink

💖 DESCRIPTION 💖

So the whole vibe: wait for all the fences on the requested ring to signal — and that's on all asics, no cap, every single one. 🫶

Then the return value does its little thing:

  • returns the left time if there was no timeout ⭐
  • returns 0 or minus if it timed out 💀

that's it, that's the function, short and iconic, main character energy fr fr 🌈

👑 SEE ALSO 👑

Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c — go read the source, it's right there 🍓

like, the whole fence friend group, we love a linked list of besties 💜

and that's the page!! 🧚 this cutie lives in ./drivers/gpu/drm/amd/amdgpu, dated October 2026 — mwah, go poll some fences responsibly 💅🔥

📦 where this page comes from