cayman_dma_vm_write_pages(9)

📦 version 7.3.1, in nixpkgs unstable

💅 cayman_dma_vm_write_pages(9) — from the Kernel API Manual, bestie 🎀

okay so picture this: it's a (9) page, it lives in the Kernel API Manual, and its whole personality is manually writing page table entries. iconic behavior honestly.

✨ NAME ✨

cayman_dma_vm_write_pages — update PTEs by writing them manually 💖 (yes, by hand, like a craft project)

🌸 SYNOPSIS 🌸

void cayman_dma_vm_write_pages (struct radeon_device *rdev , struct
radeon_ib *ib , uint64_t pe , uint64_t addr , unsigned count , uint32_t
incr , uint32_t flags );

that's the whole squad right there, no cap 🫶

🦋 ARGUMENTS 🦋

  • rdev — a radeon_device pointer, obvi. it's the device bestie 💫
  • ib — the indirect buffer you're gonna fill with commands 🎀
  • pe — addr of the page entry. the spot. the location. 📍
  • addr — the dst addr you're writing into pe ✍️
  • count — how many page entries we're updating, like a headcount but for PTEs 👑
  • incr — increase next addr by incr bytes. little step-by-step moment 🐾
  • flags — hw access flags, lowkey important 🔥

💜 DESCRIPTION 💜

so the whole vibe: update PTEs by writing them manually using the DMA. that's on cayman/TN, iykyk. no magic auto-fill, you're literally doing it yourself 💅✨

🌈 SEE ALSO 🌈

kernel file ./drivers/gpu/drm/radeon/ni_dma.c — go read it, it's giving main character energy 📖💫

and then the whole friend group:

🫶 friendly reminder from me to you: pe is the page entry address and addr is what you write into it. don't mix them up bestie, I'm begging 🙈

and that's the whole page!! 🌟 brought to you by source/version ./drivers/gpu/drm/radeon, dated October 2026 — mwah, slay, see you in the next manpage 🍓💅✨

📦 where this page comes from