hl_init_pb_ranges(9)

📦 version 7.3.1, in nixpkgs unstable

💅 hl_init_pb_ranges (9) — Kernel API Manual, bestie edition 🎀

okay so bestie, welcome to the section 9 page for hl_init_pb_ranges, and no cap this one is a whole moment. it lives in the Kernel API Manual and it does exactly one iconic thing: it sets pb in HW according to the given configuration, unsecuring ranges of registers instead of single specific registers. the way that saves you a million calls… we love efficiency 💖

✨ NAME ✨

hl_init_pb_ranges — set pb in HW according to given configuration, unsecurring registers ranges instead of specific registers 🦋

🌸 SYNOPSIS 🌸

int hl_init_pb_ranges (struct hl_device *hdev , u32 num_dcores , u32
dcore_offset , u32 num_instances , u32 instance_offset , const u32
pb_blocks[] , u32 blocks_array_size , const struct range
*user_regs_range_array , u32 user_regs_range_array_size );

lowkey a long signature but she ate, fr fr 💅

🫶 ARGUMENTS 🫶

  • hdev — pointer to hl_device structure. literally the main character of the whole thing 👑
  • num_dcores — number of decores to apply configuration to; set to HL_PB_SHARED if you need to apply only once ⭐
  • dcore_offset — offset between dcores 🌈
  • num_instances — number of instances to apply configuration to ✨
  • instance_offset — offset between instances 🦋
  • pb_blocks — blocks array 🍓
  • blocks_array_size — blocks array size 💜
  • user_regs_range_array — unsecured register range array 🎀
  • user_regs_range_array_size — unsecured register range array size 💫

🔥 SEE ALSO 🔥

the kernel file that holds all the lore:

./drivers/accel/habanalabs/common/security.c

and the whole friend group of related calls, all of them 100% worth a look 👀

bestie reminder: this page is short on warnings and long on vibes, but the options are the options — no invented behaviour here, periodt 💀

and that's the page!! 🧚 from ./drivers/accel/habanalabs/common, dated October 2026, in the Kernel API Manual — mwah, go slay those ranges 💅💖🌟

📦 where this page comes from