si_dma_ring_emit_vm_flush(9)

📦 version 7.3.1, in nixpkgs unstable

💅 si_dma_ring_emit_vm_flush(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one's a little kernel-side icon and she's here to tell you all about flushing a VM TLB with sDMA. buckle up 🎀

🌸 NAME 🌸

si_dma_ring_emit_vm_flush — cik vm flush using sDMA 🦋

(yes the NAME says cik and the DESCRIPTION says VI, and yes we're keeping both exactly as they are, no cap 💀)

⭐ SYNOPSIS ⭐

void si_dma_ring_emit_vm_flush (struct amdgpu_ring *ring , unsigned vmid
, uint64_t pd_addr );

that's the whole signature, copy it exactly, don't be weird about it 🫶

🎀 ARGUMENTS 🎀

  • ring — an amdgpu_ring pointer, literally the ring you're working with 💫
  • vmid — the vmid number to use, that's it, that's the whole vibe 🔥
  • pd_addr — an address 👑

💖 DESCRIPTION 💖

So what she actually does: Update the page table base and flush the VM TLB using sDMA (VI).

that's the tea ☕ page table base gets updated, VM TLB gets flushed, sDMA does the work, and it's the VI situation. short and iconic, periodt 💅

🌈 SEE ALSO 🌈

the kernel file in question, living its best life at:

  • ./drivers/gpu/drm/amd/amdgpu/si_dma.c 📁

and her whole friend group, all of them, in order, no skipping 🧚:

ngl bestie, this one's short but she ate 💖 go read the source file if you want the full lore, iykyk 🙈

okay that's the whole page, mwah 😭🫶 this cutie came out of ./drivers/gpu/drm/amd/amdgpu and she's dated October 2026 — bestie really said "future icon" and meant it 👑✨

📦 where this page comes from