sdma_v7_1_g...ume_instance(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sdma_v7_1_gfx_resume_instance — a whole vibe (from the Kernel API Manual, bestie)

okay so first of all, the page you're literally reading is sdma_v7_1_g...ume_instance(9) from the Kernel API Manual, and no, the title isn't hiding anything dramatic — it's just that long function name getting cut off for aesthetics. we move. 🎀

✨ NAME ✨

sdma_v7_1_gfx_resume_instance — start/restart a certain sdma engine 🌸

like, she boots it up, or she brings it back from the brink. either way she's serving. 💅

🦋 SYNOPSIS 🦋

int sdma_v7_1_gfx_resume_instance (struct amdgpu_device *adev , int i ,
bool restore );

look at her. three little parameters. no cap, she's iconic. ✨

🎀 ARGUMENTS 🎀

  • adev — an amdgpu_device pointer, aka the main character of this whole operation. 🫶
  • i — the instance, bestie. which one are we talking about? this number right here. 🔢
  • restore — this one's for restoring wptr when it's a restart. yes, that's a thing, and yes, she's handling it. 💜

🌈 DESCRIPTION 🌈

So here's the tea: this function sets up the gfx DMA ring buffers and enables them. that's the whole first job. slay. 🔥

And then — plot twist — on a restart, we're gonna restore wptr and rptr. both of them. not just one. the way that this function is thorough?? obsessed. 😭💖

Returns 0 for success. that's it. zero means we ate. 🍓

🧚 SEE ALSO 🧚

the kernel file, obviously — ./drivers/gpu/drm/amd/amdgpu/sdma_v7_1.c — and then a whole friend group of related functions, all of them iconic in their own right:

bestie reminder: this page lives in ./drivers/gpu/drm/amd/amdgpu, it's dated October 2026, and the manual tag is sdma_v7_1_g...ume_instance(9). that's the whole footer. iykyk. 💀✨

anyway ily, go resume that instance. 🫶🌟

📦 where this page comes from