amdgpu_irq_create_mapping(9)

📦 version 7.3.1, in nixpkgs unstable

💅 amdgpu_irq_create_mapping(9)

okay so bestie, this is a page straight out of the Kernel API Manual — yes, the Kernel API Manual, we're in the big leagues now 🎀 — and it's about amdgpu_irq_create_mapping, which is lowkey one of those tiny functions that makes the whole GPU interrupt situation work. summer job energy.

✨ NAME ✨

amdgpu_irq_create_mapping — the function that creates a mapping between domain Linux IRQs 🦋

🌸 SYNOPSIS 🌸

unsigned int amdgpu_irq_create_mapping (struct amdgpu_device *adev ,
   unsigned int src_id );

like, it takes two things and gives you back a unsigned int. that's the whole vibe.

🫶 ARGUMENTS 🫶

  • adev — your amdgpu device pointer, the main character of literally every function in this file 👑
  • src_id — the IH source id. IH as in Interrupt Handler, iykyk 🌈

💖 DESCRIPTION 💖

so what it does: it creates a mapping between a domain IRQ — which is the GPU IH src_id — and a Linux IRQ. that's it. that's the function.

and the way you use it is specifically for components that generate a GPU interrupt but are driven by a different driver. the example the manpage gives is ACP, and honestly very demure, very mindful of them to mention it 💅

⭐ RETURN ⭐

returns a Linux IRQ. that's the whole return value. slay.

🦋 SEE ALSO 🦋

the source file lives at ./drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c 📁 — go read it, it's giving lore.

and here's the whole friend group, no cap, every single one:

that's twenty entries plus the Interrupt Handling one, and yes I counted so you don't have to 😭

ngl the whole page is short but it ate. it's from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and it's a amdgpu_irq_create_mapping(9) moment fr fr. go map some IRQs bestie, ily 💜🌷
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