ccio_clear_io_tlb(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ccio_clear_io_tlb(9) — like, the whole kernel API manual moment

okay so bestie, buckle up, we're in the kernel API manual and this one is specifically about ccio_clear_io_tlb 🎀

✨ NAME ✨

ccio_clear_io_tlb — literally just removes stale entries from the I/O TLB. that's it. that's the whole job. no cap 💅

🦋 SYNOPSIS 🦋

void ccio_clear_io_tlb (struct ioc *ioc , dma_addr_t iovp , size_t
byte_cnt );

return type is void, so like… she doesn't return anything, she just does, and honestly? main character energy 🔥

🌸 ARGUMENTS 🌸

  • ioc — The I/O Controller. the whole controller, the big one, the icon 👑
  • iovp — The I/O Virtual Page. yes queen, the virtual page herself ✨
  • byte_cnt — The requested number of bytes to be freed from the I/O Pdir. so how many bytes we're freeing, exactly, requested, no guessing 💖

💀 DESCRIPTION 💀

Purge invalid I/O PDIR entries from the I/O TLB. simple, clean, iconic — she's clearing out the invalid ones and keeping the vibe check passing ✨

FIXME: Can we change the byte_cnt to pages_mapped? 👀 like, the kernel devs literally left this note in here, so we're passing it along verbatim, fr fr. we don't know, we're just the messenger 🙈

🌈 SEE ALSO 🌈

Kernel file ./drivers/parisc/ccio-dma.c — go read it, iykyk 🫶

and like, the whole friend group of functions, all of them, present and accounted for:

okay so that's the whole page! 💜 this little gem lives in ./drivers/parisc and is dated October 2026 — slay, mark your calendars, bestie 🎀🦋⭐

📦 where this page comes from