sdma_v7_0_ring_set_wptr(9)

📦 version 7.3.1, in nixpkgs unstable

✨ sdma_v7_0_ring_set_wptr(9) ✨

okay so this is a page from the Kernel API Manual, bestie, and it's about one very specific little function. let's get into it 💅

🌸 NAME 🌸

sdma_v7_0_ring_set_wptr — the one that commits the write pointer. that's it. that's her whole job. iconic behavior honestly 👑

🦋 SYNOPSIS 🦋

void sdma_v7_0_ring_set_wptr (struct amdgpu_ring *ring );

so it returns nothing (void, she gives nothing back, main character energy) and it takes exactly one thing. slay.

🎀 ARGUMENTS 🎀

  • ring — an amdgpu ring pointer. like, the ring. the one we're talking about. the whole vibe of this function revolves around her fr fr 💖

💫 DESCRIPTION 💫

Write the wptr back to the hardware.

that's the entire tea, no cap. you take that write pointer and you write it back to the hardware. committing it. locking it in. the way that hardware needs to actually know where the write pointer is at? yeah. this is the function that tells it 🫶✨

🌈 SEE ALSO 🌈

like, the whole sdma_v7_0 friend group shows up here, and honestly? obsessed. go check out the kernel file first:

  • ./drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c

and then all her siblings and cousins and mutuals 👇

iykyk 💀🔥

and that's the whole page, bestie! 🎀 this lil gem lives over in ./drivers/gpu/drm/amd/amdgpu, and the version/date vibe stamped on it is October 2026. so like, future-core of it all ⭐🦋 bye bestie, go commit some pointers 💜

📦 where this page comes from