cayman_get_a...nfo_register(9)

💅 cayman_get_a...nfo_register(9) — like, the Kernel API Manual bestie

okay so welcome to the Kernel API Manual entry for cayman_get_a...nfo_register(9) — yes the title is long, yes it's giving abbreviation, we're moving on 💖

✨ NAME ✨

cayman_get_allowed_info_register — fetch the register for the info ioctl 🎀

🌸 SYNOPSIS 🌸

int cayman_get_allowed_info_register (struct radeon_device *rdev , u32
reg , u32 *val );

🦋 ARGUMENTS 🦋

• rdev — a radeon_device pointer. literally just the device, bestie 🫶
• reg — register offset in bytes. bytes, not vibes. keep that in mind 💅
• val — register value. this is where the good stuff lands ✨

🔥 DESCRIPTION 🔥

Returns 0 for success or -EINVAL for an invalid register. that's it, that's the whole function, and honestly? iconic. no cap, sometimes a function just does one thing and does it well 👑

lowkey important: -EINVAL means you handed it a register it doesn't allow. not a crash, just a polite no 🙈

💜 SEE ALSO 💜

• Kernel file ./drivers/gpu/drm/radeon/ni.c
• cayman_gfx_is_lockup(9)
• cayman_vm_decode_fault(9)

go read those too, they're part of the same little radeon friend group 🌈

kay that's the whole page, mwah 💋 — brought to you by the ./drivers/gpu/drm/radeon girlies, October 2026 edition, fr fr 🎀✨🦋