vcn_v4_0_uni...ing_get_rptr(9)

📦 version 7.3.1, in nixpkgs unstable

💜 vcn_v4_0_unified_ring_get_rptr — like, the whole page, bestie

okay so real talk: this is a page straight out of the Kernel API Manual, and it's about exactly one tiny little function that does exactly one tiny little thing. but we're gonna read it together and it's gonna be adorable and also correct, no cap. ✨

🌸 NAME 🌸

vcn_v4_0_unified_ring_get_rptr — get unified read pointer

that's it. that's the whole name section. she's concise, she's iconic, she knows what she is. 💅

🦋 SYNOPSIS 🦋

uint64_t vcn_v4_0_unified_ring_get_rptr (struct amdgpu_ring *ring );

so she takes one thing and she gives you back a uint64_t. simple queen behavior. 🎀

🍓 ARGUMENTS 🍓

  • ring — an amdgpu_ring pointer. that's your ring, bestie. hand it over.

one argument. one. the way she doesn't overcomplicate things?? obsessed. 🙈

✨ DESCRIPTION ✨

Returns the current hardware unified read pointer.

that's the entire description and honestly? she said what she said. it goes and it gets the current hardware unified read pointer and it brings it back to you like a little gift. 🎁 no side quests, no drama, just the read pointer, fresh from the hardware. 💖

👑 SEE ALSO 👑

alright buckle up buttercup because the see-also list is LONG and we are NOT skipping a single one of these, i don't care how tired you are. every single one. here we go, main character style. 🌈

first off, the kernel file itself, because she lives there:

  • Kernel file ./drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c

and now the whole friend group, in order, exactly as they appear:

see? all of them. not one dropped. we ate that list UP. 🔥 and yeah, vcn_v4_0_unified_ring_get_wptr(9) and vcn_v4_0_unified_ring_set_wptr(9) are literally right there next to her — the read pointer's siblings, the whole wptr/rptr family reunion, iykyk. 🫶

and that's the page!! tiny function, huge main character energy, zero notes. 💀

lowkey a reminder: all of this lives in the kernel docs, so if you're poking at amdgpu internals, be normal about it. ok love you bye. 💜

signed off with love — from the source dir ./drivers/gpu/drm/amd/amdgpu, dated October 2026, belonging to the vcn_v4_0_uni...ing_get_rptr(9) manual page. 🧚‍♀️✨

📦 where this page comes from