sdma_v7_1_in...witch_enable(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 sdma_v7_1_inst_ctx_switch_enable(9) 🌸

okay bestie, quick vibe check — this is a page from the Kernel API Manual, and we're about to get into some GPU driver business 💅 no cap, it's giving "low-level AMD graphics" and honestly? iconic.

✨ NAME ✨

sdma_v7_1_inst_ctx_switch_enable — stop the async dma engines context switch 🛑

like, that's the whole thing. that's the assignment. it stops it. periodt.

🦋 SYNOPSIS 🦋

void sdma_v7_1_inst_ctx_switch_enable (struct amdgpu_device *adev , bool
enable , uint32_t inst_mask );

she takes three arguments and returns void — no little gift back, just vibes and side effects 🎀

💖 ARGUMENTS 💖

  • adev — amdgpu_device pointer. it's the device, bestie. the whole context. 🖥️
  • enable — enable/disable the DMA MEs context switch. yes it's a bool, yes the name is doing the heavy lifting for you, we love a self-documenting king 👑
  • inst_mask — mask of dma engine instances to be enabled. it's a uint32_t, it's a mask, it's picking which instances get the treatment 🌈

🔥 DESCRIPTION 🔥

Halt or unhalt the async dma engines context switch. that's it, that's the function. halt = stop, unhalt = un-stop (yes that's a word now, I said what I said) 😭 the async dma engines' context switch is the main character here and you're either freezing her or letting her cook 🔥

🌟 SEE ALSO 🌟

the kernel file this bad girl lives in, fr fr:

  • Kernel file ./drivers/gpu/drm/amd/amdgpu/sdma_v7_1.c

and her whole friend group, all of them, in order, no one left out 🫶:

aaaand that's the page 💜 she's short, she's sweet, she lives in ./drivers/gpu/drm/amd/amdgpu, dated October 2026 — mark your calendars bestie, this one's a whole mood 🎀✨🦋

📦 where this page comes from