ccio_alloc(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 ccio_alloc(9) — the manual page, but make it a group chat 🌸

okay so bestie, this is ccio_alloc from the Kernel API Manual — yes we're reading kernel docs together, that's the vibe now 💅

✨ NAME ✨

ccio_alloc — bestie, it allocates a consistent DMA mapping. that's the whole personality. iconic behavior, no notes 🎀

🦋 SYNOPSIS 🦋

void * ccio_alloc (struct device *dev , size_t size , dma_addr_t
*dma_handle , gfp_t flag , unsigned long attrs );

like, copy it exactly pls, it's literally right there 🙈

💖 ARGUMENTS 💖

  • dev — the PCI device. the main character of this whole situation 👑
  • size — the length of the DMA region. how much space we're grabbing, fr fr
  • dma_handle — the DMA address that gets handed back to the device. and bestie, listen: it's not the cpu one. the device gets this address, not the cpu 😭 lowkey important
  • flag — allocation flags 🚩
  • attrs — attributes ✨

🌈 DESCRIPTION 🌈

okay so this function implements the pci_alloc_consistent function. that's it, that's the description, and honestly? she ate 💅

🫶 SEE ALSO 🫶

the kernel file lives at ./drivers/parisc/ccio-dma.c and it has so many friends, we love a social butterfly 🦋

go read all of them, i'll wait 💜

ngl none of this is my fault, it's straight from ./drivers/parisc — October 2026 — page ccio_alloc(9). mwah, stan kernel docs, bye bestie 🍓🧚‍♀️✨
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