sdma_v4_0_gfx_resume(9)

📦 version 7.3.1, in nixpkgs unstable

💖 sdma_v4_0_gfx_resume 💖

okay so bestie, welcome to the Kernel API Manual — yes that's the manual name, we're in the kernel docs now, put your seatbelt on 🎀. This one is a page about sdma_v4_0_gfx_resume, and honestly? it's giving "underrated little workhorse". let's get into it ✨

✨ NAME ✨

sdma_v4_0_gfx_resume — setup and start the async dma engines

no cap, that's literally the whole vibe. setup. start. engines. slay 💅

🌸 SYNOPSIS 🌸

void sdma_v4_0_gfx_resume (struct amdgpu_device *adev , unsigned int i
);

yes the wrap is real, that's just how the page came out, don't come for me 🙈

🦋 ARGUMENTS 🦋

  • adev — an amdgpu_device pointer. that's your device bestie, the whole entire GPU situation 🫶
  • i — the instance to resume. not "an instance", the instance. you gotta tell it which one 🔥

💜 DESCRIPTION 💜

So what does it actually do? it sets up the gfx DMA ring buffers and enables them — and the page is very clear that this is the (VEGA10) behaviour, iykyk 👑

Then there's the return situation: <pink>Returns 0 for success, error for failure.</pink> that's it, that's the contract. 0 = we ate. error = we did not eat. 😭

tiny little aside from me to you: the synopsis says void and the description says it returns 0 or an error — I'm just reading the page back to you, I'm not the one who wrote it, don't shoot the messenger 🙈💀

⭐ SEE ALSO ⭐

the kernel file lives right here, main character location energy:

  • Kernel file ./drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c

and the whole friend group, all of them, every single one, I'm not skipping a single bestie:

and that's the page!! 🎀 one last lil sign-off so you have the receipts: this came from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and it's the sdma_v4_0_gfx_resume(9) page — that's (9) as in kernel API manual, we stay documented 💅✨ ily, go resume some engines 🦋💖

📦 where this page comes from