amdgpu_ih_ring_init(9)

📦 version 7.3.1, in nixpkgs unstable

💖 amdgpu_ih_ring_init(9) — it's giving "Kernel API Manual" energy 💖

okay bestie, so we're in the Kernel API Manual today and the main character is amdgpu_ih_ring_init. yes, that one. she sets up the IH state. let's get into it 🎀

✨ NAME ✨

amdgpu_ih_ring_init — literally just here to initialize the IH state, no cap 🌸

🦋 SYNOPSIS 🦋

int amdgpu_ih_ring_init (struct amdgpu_device *adev , struct
       amdgpu_ih_ring *ih , unsigned ring_size , bool use_bus_addr );

💅 ARGUMENTS 💅

  • adev — an amdgpu_device pointer. she's the device, she's the moment 🫶
  • ih — the ih ring you want to initialize. yes, this one right here, bring her forward 💜
  • ring_size — the ring size you're allocating. pick your size, bestie ✨
  • use_bus_addr — true when we can use dma_alloc_coherent. lowkey the whole vibe check of this flag 😭

🔥 DESCRIPTION 🔥

So what does she actually do? She initializes the IH state and allocates a buffer for the IH ring buffer. iconic behaviour, honestly 👑

Returns 0 for success, errors for failure. that's it, that's the contract — if you get a 0, you slayed; anything else and it's giving "something went wrong" 💀

🌈 SEE ALSO 🌈

Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c — go read her, iykyk 📖

and the whole friend group, fr fr:

ngl that's the whole page — she's short, she's sweet, she allocates a buffer. periodt 💖

okay that's the wrap bestie 🧚 this one came from the source tree at ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and she answers to amdgpu_ih_ring_init(9) — mwah 💋⭐

📦 where this page comes from