hl_mmu_hr_write_pte(9)

📦 version 7.3.1, in nixpkgs unstable

💅 hl_mmu_hr_write_pte — a whole section 9 moment

Okay bestie, welcome to the hl_mmu_hr_write_pte page from the Kernel API Manual — this is the one that literally just writes an HR PTE. That's it. That's the whole gig. No cap. 🎀

✨ NAME ✨

hl_mmu_hr_write_pte — write HR PTE 🖊️✨

🌸 SYNOPSIS 🌸

void hl_mmu_hr_write_pte (struct hl_ctx *ctx , struct pgt_info *pgt_info
, u64 phys_pte_addr , u64 val , u32 hop_table_size );

Notice it returns void — she gives nothing back, she's just here to do the thing. Main character energy fr fr. 💅

🦋 ARGUMENTS 🦋

The way this function has five arguments and every single one matters, iykyk:

  • ctx — pointer to the context structure 🫶 your whole vibe/state, basically.
  • pgt_info — HOP's page table info structure 📋 the receipts for the page table.
  • phys_pte_addr — phys PTE address 📍 the physical spot where the PTE lives. Not virtual. Phys. Do not come for her with a virtual address, she will not know her.
  • val — raw PTE data 🧃 the actual bytes getting written, unprocessed, straight-up raw.
  • hop_table_size — HOP table size 📏 how big the HOP table is. She needs to know.

👑 SEE ALSO 👑

The kernel file this lives in, for when you wanna go read the source like the little researcher you are:

./drivers/accel/habanalabs/common/mmu/mmu.c

And the whole friend group — the MMU/HOP squad 🧚✨:

Okay that's the whole page bestie, go write your PTE 💖

Sign-off szn: this iconic lil page comes from ./drivers/accel/habanalabs/com... (the path got a lil truncated, she's mysterious like that 🌈), dated October 2026, and yes — it's hl_mmu_hr_write_pte(9) all the way at the bottom too. Periodt. 💅⭐

📦 where this page comes from