iceland_ih_decode_iv(9)

📦 version 7.3.1, in nixpkgs unstable

💅 iceland_ih_decode_iv(9) 💅

okay so bestie, welcome to the Kernel API Manual — this is the page for iceland_ih_decode_iv, and honestly it's a whole little main character moment in the AMDGPU interrupt-handling cinematic universe ✨

🌸 NAME 🌸

iceland_ih_decode_iv — decode an interrupt vector 🎀

like, it takes the interrupt vector and figures out what it's actually saying. no cap.

✨ SYNOPSIS ✨

void iceland_ih_decode_iv (struct amdgpu_device *adev , struct
amdgpu_ih_ring *ih , struct amdgpu_iv_entry *entry );

three args, returns nothing (void — it's giving strong silent type 💅), and it's literally spelled exactly like that, so don't come for me about the spacing.

🦋 ARGUMENTS 🦋

  • adev — amdgpu_device pointer. it's the device context, the vibe-setter, the main character of the whole amdgpu situation 👑
  • ih — the IH ring buffer to decode. this is the ring you're pulling the interrupt vector out of, iykyk 🌈
  • entry — the IV entry where the decoded info gets placed. it's the lil container that holds the results after decoding, and it gets filled in for you 🫶

💖 DESCRIPTION 💖

so here's the tea: this function decodes the interrupt vector sitting at the current rptr position — and then it advances that position too. two-for-one. iconic. 🎀

that's the whole thing, fr fr. no extra lore, no secret behaviour, just decode + advance, periodt. ✨

lowkey important detail: it doesn't just read at the current rptr — it also moves the position forward. don't forget the advance part, bestie 😭

🔥 SEE ALSO 🔥

the kernel file itself lives at ./drivers/gpu/drm/amd/amdgpu/iceland_ih.c — go read the source if you want the director's cut 💀

and these sibling functions are all part of the same friend group:

🦋 go off, queen.

and that's the page!! this lil slice of kernel-api-manual heaven comes to you from ./drivers/gpu/drm/amd/amdgpu, dated October 2026 — mwah, love that for us 💜✨🎀

📦 where this page comes from