r600_dma_set_wptr(9)

📦 version 7.3.1, in nixpkgs unstable

💅 r600_dma_set_wptr(9) — the kernel API manual, but make it cute

okay so bestie, welcome to the glow-up of r600_dma_set_wptr(9), straight out of the Kernel API Manual ✨ this one's a tiny little function but it's got big main character energy, so let's get into it 🫶

🎀 NAME 🎀

r600_dma_set_wptr — the one that commits the write pointer. that's it. that's the whole job. and honestly? she ate 💅

✨ SYNOPSIS ✨

void r600_dma_set_wptr (struct radeon_device *rdev , struct radeon_ring
*ring );

literally just a void function, no return value, no drama — it takes an rdev and a ring and goes about its business 🌸

🦋 ARGUMENTS 🦋

  • rdev — a radeon_device pointer. that's your radeon device, the whole vibe, the main character of the story 👑
  • ring — a radeon_ring pointer. the ring in question, the actual ring we're messing with 🎀

💖 DESCRIPTION 💖

so here's the tea: this function writes the wptr back to the hardware (r6xx+). no cap, that's the entire description. she commits the write pointer to the hardware, and the hardware in question is r6xx and newer, periodt 💅✨

🔥 SEE ALSO 🔥

bestie you are NOT ready for this friend group — like, this is the whole radeon DMA squad and they all live in the kernel file ./drivers/gpu/drm/radeon/r600_dma.c ngl:

like, they all said "we support each other" and they MEANT it 🫶💜

🧚 sign-off 🧚

and that's the whole page, bestie!! this iconic little number lives at ./drivers/gpu/drm/radeon and it's dated October 2026 — go forth and commit that write pointer, you absolute legend 🌈⭐💖

📦 where this page comes from