vcn_v4_0_uni...ing_get_wptr(9)

📦 version 7.3.1, in nixpkgs unstable

💅 vcn_v4_0_unified_ring_get_wptr — get unified write pointer ✨

okay so bestie, welcome to the Kernel API Manual 🎀 — yes, that's the manual name, we're in the kernel docs now, very main character of us. This one's a tiny little function but she's iconic, let's get into it 🦋

🌸 NAME 🌸

vcn_v4_0_unified_ring_get_wptr — get unified write pointer, periodt 💖

✨ SYNOPSIS ✨

uint64_t vcn_v4_0_unified_ring_get_wptr (struct amdgpu_ring *ring );

that's literally the whole vibe — one argument, one uint64_t coming back at you 🔥

🫶 ARGUMENTS 🫶

  • ring — an amdgpu_ring pointer, that's it, that's the whole thing 💫

👑 DESCRIPTION 👑

Returns the current hardware unified write pointer. no cap, that's the whole description, she's short and sweet and serves exactly what she needs to serve 😌

🌈 SEE ALSO 🌈

okay so this is the part where the whole friend group shows up 🎀 first off, the kernel file where she lives:

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

and then the full squad, all of them, no one left out 💜:

like, get_rptr and set_wptr are literally right there in the list with her, they're a trio, iykyk 💅

lowkey a reminder for the girlies: this is kernel-level stuff, so treat her with respect — she lives in ./drivers/gpu/drm/amd/amdgpu and she's not here for games 🧚

and that's the page 🍓 sign-off time, bestie: this one's straight out of the ./drivers/gpu/drm/amd/amdgpu source, dated October 2026 in the Kernel API Manual — slay, go read some more kernel docs, you're doing amazing 💖✨🎀

📦 where this page comes from