sdma_v3_0_vm_write_pte(9)

📦 version 7.3.1, in nixpkgs unstable

✨ sdma_v3_0_vm_write_pte ✨

okay so bestie, welcome to the Kernel API Manual entry for sdma_v3_0_vm_write_pte — yes that's a mouthful, yes it's iconic, and yes we're gonna get through it together 💖

🌸 NAME 🌸

sdma_v3_0_vm_write_pte — update PTEs by writing them manually 🫶

🎀 SYNOPSIS 🎀

void sdma_v3_0_vm_write_pte (struct amdgpu_ib *ib , uint64_t pe ,
uint64_t value , unsigned count , uint32_t incr );

literally that's the whole signature, no cap ✨

🦋 ARGUMENTS 🦋

  • ib — the indirect buffer you're filling up with commands. it's giving "the canvas" energy 🎨
  • pe — the addr of the page entry. yes, that kind of pe 💅
  • value — the dst addr that gets written into pe, slay 💖
  • count — how many page entries we're updating. the more the merrier, lowkey 🍓
  • incr — bumps the next addr up by incr bytes. tiny little step, big main character energy 👑

🔥 DESCRIPTION 🔥

Update PTEs by writing them manually using sDMA (CIK). that's it, that's the vibe — you're hand-writing those page table entries with sDMA on CIK, no shortcuts, no auto-magic, just you and the hardware being besties 💀✨

🌈 SEE ALSO 🌈

the kernel file lives right here, go read it iykyk:

  • ./drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c

and the whole friend group, fr fr:

ngl bestie, that's a lot of sdma_v3_0_* functions, but that's the family, and we love them 🧚💜

and that's the page! brought to you by ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and yes the title is still sdma_v3_0_vm_write_pte(9) because she's the main character here 👑💅✨

📦 where this page comes from