sdma_v6_0_enable(9)

📦 version 7.3.1, in nixpkgs unstable

💅 sdma_v6_0_enable(9) — a Kernel API Manual moment

okay so bestie, welcome to the Kernel API Manual, and today's main character is sdma_v6_0_enable 💖 this one lives way down in the amdgpu mines and honestly? it's giving "small function, big responsibility" energy.

✨ NAME ✨

sdma_v6_0_enable — stop the async dma engines 🛑

(yes, the NAME says stop but the DESCRIPTION says halt or unhalt — we love a dual-threat icon, more on that below 👀)

🌸 SYNOPSIS 🌸

void sdma_v6_0_enable (struct amdgpu_device *adev , bool enable );

no return value, no drama, just vibes and a void 🫶

🎀 ARGUMENTS 🎀

  • adev — amdgpu_device pointer 💫 like, the whole GPU device situation, handed to you as a pointer
  • enable — enable/disable the DMA MEs 🧚 this little bool is literally the whole switch: flip it and the DMA MEs go one way or the other

🦋 DESCRIPTION 🦋

Halt or unhalt the async dma engines. ✨ that's it, that's the function. it's a pause/unpause button for the async dma engines — press it and they stop, press it the other way and they un-stop. no cap.

fr fr the enable flag is doing all the emotional labour here, so mind what you pass 💅

👑 SEE ALSO 👑

the kernel file it lives in:

  • ./drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c

and the whole friend group (ngl this squad is stacked):

like I said. stacked. 🌈

before you go — the source/version line on this page is ./drivers/gpu/drm/amd/amdgpu and it's dated October 2026, so if you're reading this from the future: hi bestie, hope the DMA MEs are behaving 💜

okay bye, go halt something (or unhalt it), ily 🎀🔥

📦 where this page comes from