amdgpu_vm_pte_fragment(9)

📦 version 7.3.1, in nixpkgs unstable

💅 amdgpu_vm_pte_fragment(9) — like, the Kernel API Manual era 🎀

okay bestie, so this one lives in the Kernel API Manual and it's literally called amdgpu_vm_pte_fragment — get fragment for PTEs. that's the whole vibe. let's go ✨

✨ SYNOPSIS ✨

void amdgpu_vm_pte_fragment (struct amdgpu_vm_update_params *params ,
uint64_t start , uint64_t end , uint64_t flags , unsigned int *frag ,
uint64_t *frag_end );

no cap, that's the whole signature. it's a void, she returns nothing, she just tells you things through pointers. main character energy 💅

🌸 ARGUMENTS 🌸

  • params — the struct amdgpu_vm_update_params situation. the manpage is like "see amdgpu_vm_update_params definition" and honestly? valid. go read it, iykyk 🫶
  • start — the first PTE to handle. like, where the party starts 🎉
  • end — the last PTE to handle. where the party ends 😭
  • flags — hardware mapping flags, fr fr. the hw ones specifically 🔥
  • frag — the resulting fragment size gets written here. it's an unsigned int *, so she's pointing at your answer 👑
  • frag_end — end of this fragment, handed back to you as a uint64_t *. two outputs, one call, we love a multitasker ⭐

🦋 DESCRIPTION 🦋

so what does she actually do? she returns the first possible fragment for the start and end address. that's it. that's the whole description. short, sweet, iconic — she ate and left no crumbs 🍓

like, no notes. the manpage said what it said and dipped 💀

ngl bestie, this is one of those tiny helper functions that just knows things about fragments so the bigger update machinery doesn't have to. respect.

💖 SEE ALSO 💖

okay this is the part where the group chat gets LONG. buckle up 🌈 the kernel file itself lives at:

./drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c

and then the whole extended friend group shows up, in this exact order:

twenty-four besties and not a single one skipped, periodt 👑

and that's the page, bestie 💜 this little gem ships out of ./drivers/gpu/drm/amd/amdgpu and it's stamped October 2026 — so like, mark your calendar, she's from the future 🧚✨ byeee 🎀

📦 where this page comes from