navi10_ih_irq_init(9)

📦 version 7.3.1, in nixpkgs unstable

okay so real talk: this is a page from the Kernel API Manual, and the star of the show is navi10_ih_irq_init — she's the one who gets the interrupt ring born and switched on. two jobs, one function, main character energy fr fr 👑

✨ SYNOPSIS ✨

int navi10_ih_irq_init (struct amdgpu_device *adev );

like, that's it. that's the whole vibe. she takes one pointer and hands you back an int 💖

🫶 ARGUMENTS 🫶

  • adev — an amdgpu_device pointer, aka the whole GPU device's little passport. that's the only thing you're passing her 🦋

🌸 DESCRIPTION 🌸

so here's what she actually does, and ngl it's a lot:

  • allocates a ring buffer for the interrupt controller 🎀
  • enables the RLC
  • disables interrupts
  • enables the IH ring buffer, and then enables it (this is the NAVI flavor of the whole thing) ✨

she gets called at device load and reume (yes, the docs really said "reume" — that's resume, bestie, we don't gatekeep typos around here 😭💀).

returns 0 for success, and errors for failure. periodt. if you get a nonzero back, something did NOT slay and you should go look 👀

🔥 SEE ALSO 🔥

the kernel file herself lives at:

./drivers/gpu/drm/amd/amdgpu/navi10_ih.c

and honestly the whole friend group is here, go say hi 💜:

that's the whole page, you ate that 💅✨

sign-off tea ☕: this little number comes from ./drivers/gpu/drm/amd/amdgpu, dated October 2026 🌸 go forth and initialize some interrupt rings, bestie 🦋💖

📦 where this page comes from