hl_unset_pb_in_block(9)

📦 version 7.3.1, in nixpkgs unstable

💅 hl_unset_pb_in_block — bestie, we're clearing a protection bit 💅

okay so real talk, this page lives in the Kernel API Manual (section 9, kernel developer vibes only, iykyk) and it's about one single job: clearing a specific protection bit inside a block. that's it. that's the whole personality. and honestly? iconic for that. 🎀

✨ NAME ✨

hl_unset_pb_in_block — clear a specific protection bit in a block 🧚

like, you point at one bit and you go "not today" and it's gone. no cap.

🌸 SYNOPSIS 🌸

int hl_unset_pb_in_block (struct hl_device *hdev , u32 reg_offset ,
       struct hl_block_glbl_sec *sgs_entry );

that's the whole call, bestie. returns an int, takes three things. look at her go 💅

🦋 ARGUMENTS 🦋

  • hdev — pointer to hl_device structure. your device, your main character. 🫶
  • reg_offset — the register offset, which gets converted to a bit offset in the pb block. so you hand it a register offset and it does the little offset-to-bit math for you. she's a convertor, she's a translator, she contains multitudes ✨
  • sgs_entry — pb array. yes bestie, that's the whole description. it's the pb array. go off I guess 💀

🔥 SEE ALSO 🔥

the kernel file herself:

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

and literally the entire habanalabs security friend group, in order, no skips:

ngl that's a whole group chat and they're all in it. every single one. tag yourself, I'm hl_ack_pb_single_dcore(9) 💜

⭐ friendly reminder that hl_secure_block(9) is sitting right there in that list and it's giving opposite-day energy. clearing a bit is a real vibe shift, so know what you're doing, bestie 😭

and that's the page!! stay safe out there in ./drivers/accel/habanalabs/common, this one is from October 2026, and the whole thing is filed under Kernel API Manual → hl_unset_pb_in_block(9). mwah, go clear that bit, slay 🎀💖🌈

📦 where this page comes from