navi10_ih_get_wptr(9)

📦 version 7.3.1, in nixpkgs unstable

okay bestie, welcome to the Kernel API Manual entry for navi10_ih_get_wptr(9) — yes that's the manual name, yes it's a mouthful, and yes we're gonna get through it together 🫶

🌸 NAME 🌸

navi10_ih_get_wptr — get the IH ring buffer wptr 💫

🎀 SYNOPSIS 🎀

u32 navi10_ih_get_wptr (struct amdgpu_device *adev , struct
       amdgpu_ih_ring *ih );

like, that's the whole signature. returns a u32. no notes. 👑

🦋 ARGUMENTS 🦋

  • adev — amdgpu_device pointer. it's giving "the device, bestie" 💖
  • ih — the IH ring buffer to fetch wptr from, slay 🌈

✨ DESCRIPTION ✨

so here's the vibe check on what this actually does 🧚

Get the IH ring buffer wptr from either the register or the writeback memory buffer (NAVI10) — like, two sources, one wptr, iconic. 💅

It also checks for ring buffer overflow and deals with it. no cap, that's a real part of the job, not just a cute bonus. 😭

Returns the value of the wptr. periodt. 🎀

💜 SEE ALSO 💜

Kernel file ./drivers/gpu/drm/amd/amdgpu/navi10_ih.c — the main character source file fr fr 📁

and the whole friend group, in order 💫

ngl that's the whole page bestie, go read the source file next and hydrate 💧

okay and before I go — this whole thing lives under ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and it's <rainbow>navi10_ih_get_wptr(9)</rainbow> in case you forgot already 🙈 mwah, bye! 💖🎀🦋

📦 where this page comes from