sdma_v7_0_g...ume_instance(9)

📦 version 7.3.1, in nixpkgs unstable

🎀 sdma_v7_0_gfx_resume_instance(9) 🎀

okay so bestie, we're deep in the Kernel API Manual today — like, the kernel API manual — and this one is literally all about waking up a DMA engine. it's giving "rise and grind" but for hardware. let's get into it 💅

✨ NAME ✨

sdma_v7_0_gfx_resume_instance — start/restart a certain sdma engine 🫶

✨ SYNOPSIS ✨

int sdma_v7_0_gfx_resume_instance (struct amdgpu_device *adev , int i ,
bool restore );

lowkey iconic signature tbh. three args, one int coming back atcha 💖

✨ ARGUMENTS ✨

  • adev — an amdgpu_device pointer, aka the whole vibe of the device you're working with 🌸
  • i — the instance. which one? this one 🎀
  • restore — tells us whether we're restoring wptr when we restart. yes, that wptr. the write pointer. no cap ✨

✨ DESCRIPTION ✨

so here's the tea ☕ — this function sets up the gfx DMA ring buffers and enables them. that's the whole job. that's the assignment and she ate 🔥

on restart? we restore wptr and rptr — both pointers, bestie, we're not leaving anyone behind 🫶

and the return value? 0 for success. that's it, that's the good ending 💖

✨ SEE ALSO ✨

the kernel file lives right here, go look:

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

and the whole friend group, in order, no skips 👑:

like, the entire squad showed up for this one 🦋 iykyk

ok that's the whole page, no gatekeeping 💜 go restart that engine, bestie. slay.

🌈 that's a wrap! this lil page came from the source tree at ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and the manual's got her whole name in the corner the entire time: sdma_v7_0_g...ume_instance(9). periodt 💅✨

📦 where this page comes from