hl_mmu_v2_hr_ctx_init(9)

📦 version 7.3.1, in nixpkgs unstable

💅 hl_mmu_v2_hr_ctx_init — Kernel API Manual ✨

okay bestie, welcome to hl_mmu_v2_hr_ctx_init(9) — literally the glow-up ritual your MMU context needs before it can slay. this is from the Kernel API Manual, and it's giving "small function, big responsibility" energy, ngl.

🌸 NAME 🌸

hl_mmu_v2_hr_ctx_init — initialize a context for using the MMU module. that's it, that's the whole vibe check 🎀

✨ SYNOPSIS ✨

int hl_mmu_v2_hr_ctx_init (struct hl_ctx *ctx );

one function, one argument, zero drama. copy it exactly bestie, character for character 🫶

🦋 ARGUMENTS 🦋

  • ctx — pointer to the context structure to initialize. yes, it's a pointer. yes, you have to pass something real and valid. this is the main character of the whole operation 💜

👑 DESCRIPTION 👑

so what does this thing actually do? two iconic little setup tasks, and honestly they both ate:

  • it initializes a mutex to protect the concurrent mapping flow. translation: when multiple things are mapping at the same time, this keeps them from stepping on each other. no cap, it's the bodyguard of your mapping flow 🔥
  • it initializes a hash to hold all page tables hops related to this context. that's where the bookkeeping lives — every page-table hop for this context, organized and ready 💅

initialize first, then everything else can function. periodt.

⭐ RETURN ⭐

  • 0 on success 🎉
  • non-zero otherwise 😭 (that's your signal that something went sideways — go investigate, bestie)

🌈 SEE ALSO 🌈

ok quick reminder for the girlies: if you init the context, you're gonna want to know about the fini side too — that's hl_mmu_v2_hr_fini(9) up there. balance. symmetry. self-care 🧚

and that's the page! 💖 this adorable lil doc came from ./drivers/accel/habanalabs/com... (source and version, living their truncated life) and it's dated October 2026 — and the whole thing signs off as hl_mmu_v2_hr_ctx_init(9), obviously. mwah 💋 see you in the next manpage, bestie 🎀✨

📦 where this page comes from