hl_mmu_descramble_addr(9)

💅 hl_mmu_descramble_addr(9) 💅

okay so this is a page straight out of the Kernel API Manual bestie, and we're talking about hl_mmu_descramble_addr — the generic mmu address descrambling routine. yes. descrambling. like it's an egg 🥚✨

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🌸 NAME 🌸

hl_mmu_descramble_addr — the generic mmu address descrambling routine. that's it, that's the whole vibe. it takes a scrambled address and un-scrambles it, no cap 🫶

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✨ SYNOPSIS ✨

u64 hl_mmu_descramble_addr (struct hl_device *hdev , u64 addr );

look at her. so clean. so iconic. 👑

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🎀 ARGUMENTS 🎀

• hdev — pointer to device data. it's giving "here's the device, do ur thing" 💖
• addr — the address to descramble. the scrambled one. the one that needs fixing 😭

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🔥 RETURN 🔥

the un-scrambled address. that's the whole payoff bestie, she hands you back a clean address and dips 💅

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🦋 SEE ALSO 🦋

the kernel file it lives in:

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

and the whole friend group 🫶 (yes you have to meet all of them, they're all linked):

• hl_mmu_get_funcs(9)
• hl_mmu_init(9)
• hl_mmu_fini(9)
• hl_mmu_ctx_init(9)
• hl_mmu_scramble_addr(9)
• hl_mmu_get_hop_pte_phys_addr(9)
• hl_mmu_hr_pool_destroy(9)
• hl_mmu_hr_init(9)
• hl_mmu_hr_fini(9)
• hl_mmu_hr_free_hop_remove_pgt(9)
• hl_mmu_hr_pte_phys_to_virt(9)
• hl_mmu_hr_write_pte(9)
• hl_mmu_hr_clear_pte(9)
• hl_mmu_hr_put_pte(9)
• hl_mmu_hr_get_pte(9)
• hl_mmu_hr_get_next_hop_pgt_info(9)
• hl_mmu_hr_alloc_hop(9)
• hl_mmu_hr_get_alloc_next_hop(9)
• hl_mmu_hr_get_tlb_info(9)

ngl hl_mmu_scramble_addr(9) is literally right there in the list — she's the opposite twin, the one who scrambles. this one descrambles. balance. harmony. 🌈

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and that's the page!! source: ./drivers/accel/habanalabs/com..., dated October 2026 — so yeah, shoutout to future us for this one 🫶✨ descramble ur addresses, stay hydrated, mwah 💖🎀💅