radeon_irq_kms_sw_irq_get(9)

📦 version 7.3.1, in nixpkgs unstable

💅 radeon_irq_kms_sw_irq_get — from the Kernel API Manual, bestie

okay so picture this: you're deep in the radeon driver, the Kernel API Manual is open in another tab, and you just need to turn on one little interrupt. That's literally this whole function. Let's get into it 🫶

✨ NAME ✨

radeon_irq_kms_sw_irq_get — it enables a software interrupt. that's it, that's the vibe 💖

🎀 SYNOPSIS 🎀

void radeon_irq_kms_sw_irq_get (struct radeon_device *rdev , int ring );

copy it exactly, no cap — void, two args, semicolon and all ✨

🌸 ARGUMENTS 🌸

  • rdev — the radeon device pointer. your main character struct, the whole device, right there 💅
  • ring — the ring whose interrupt you want to enable. which ring? your ring. the one you're obsessed with 🦋

💜 DESCRIPTION 💜

So this bad boy enables the software interrupt for a specific ring — and yes, that's true for all asics, every single one, no exceptions, periodt 🔥

And like… what's the software interrupt even for? Glad you asked, bestie. It's generally used to signal a fence on a particular ring. that's the whole job. that's the assignment. iconic behavior honestly 👑

it's giving "small function, big responsibility" ngl 😭

🌈 SEE ALSO 🌈

kernel file, right here, in the flesh:

./drivers/gpu/drm/radeon/radeon_irq_kms.c

and the whole friend group — every single one of these deserves a follow:

iykyk 💫

and that's the whole page, bestie — no notes, we ate 🍓

sign-off szn: this one lives in ./drivers/gpu/drm/radeon, dated October 2026, and it's filed under radeon_irq_kms_sw_irq_get(9) ✨ mwah, go enable some interrupts responsibly 💖🧚‍♀️

📦 where this page comes from