radeon_ring_init(9)

📦 version 7.3.1, in nixpkgs unstable

🎀 radeon_ring_init(9) 🎀

okay bestie, welcome to the Kernel API Manual, page radeon_ring_init(9) — yes it's a kernel API page and yes I'm gonna make it cute. it's giving "driver internals but make it fashion" 💅

✨ NAME ✨

radeon_ring_init — literally just init driver ring struct. that's the whole vibe. get the ring struct set up. slay.

🦋 SYNOPSIS 🦋

int radeon_ring_init (struct radeon_device *rdev , struct radeon_ring
*ring , unsigned ring_size , unsigned rptr_offs , u32 nop );

five arguments, one int coming back at you. nothing scary, i promise 🫶

💖 ARGUMENTS 💖

  • rdev — a radeon_device pointer. the device. the main character, honestly 👑
  • ring — the radeon_ring structure, aka the thing that's holding all the ring info. it's the holder. the keeper. the container of the situation 🌸
  • ring_size — the size of the ring. how big it is. that's it. that's the fact 📏
  • rptr_offs — the offset of the rptr writeback location inside the WB buffer. very specific, very demure ✨
  • nop — the nop packet for this ring. every ring gets its own little nop packet, as a treat 🎀

🌈 DESCRIPTION 🌈

so what does it actually do? it initializes the driver information for the selected ring — and that's for all asics, no cap, every single one 💯

returns 0 on success. returns an error on failure. that's the whole contract, periodt.

lowkey important: 0 = good, error = not good. iykyk 😭

🔥 SEE ALSO 🔥

the kernel file lives right here:

Kernel file ./drivers/gpu/drm/radeon/radeon_ring.c

and here's the whole friend group, all of them, in order, not skipping a single one because i love you:

look at that ring family tree. iconic. no notes 💜

okay that's the page!! one last thing — this whole thing lives under ./drivers/gpu/drm/radeon, and the version/date stamp on it is October 2026. so yeah, future-coded. love that for us 🦋✨

📦 where this page comes from