ccio_free_range(9)

💖 NAME 💖

okay so bestie, welcome to ccio_free_range(9) in the Kernel API Manual — manual name folded in near the top, cute, we move. This one is ccio_free_range — free pages from the ioc's resource map. literally the whole assignment, no cap. 💅

✨ SYNOPSIS ✨

the signature is the main character, so here it is exactly, bestie — do not freestyle it:

       void ccio_free_range (struct ioc *ioc , dma_addr_t iova , unsigned long
       pages_mapped );

lowkey a vibe check: that's void, and those args are stayin' exactly as written. 🫶

🎀 ARGUMENTS 🎀

• ioc — the I/O Controller. that's the big boss object.
• iova — the I/O Virtual Address. the address in question, periodt.
• pages_mapped — the requested number of pages to be freed from the I/O Pdir. yes, exactly that many.

🌸 DESCRIPTION 🌸

This function frees the resources allocated for the iova. that's it, that's the tea — it's giving cleanup era, and the resource map gets its pages back. ✨

🦋 SEE ALSO 🦋

Kernel file: ./drivers/parisc/ccio-dma.c — the source file, iykyk.

the whole bestie crew:

• ccio_alloc_range(9)
• ccio_io_pdir_entry(9)
• ccio_clear_io_tlb(9)
• ccio_mark_invalid(9)
• ccio_dma_supported(9)
• ccio_map_single(9)
• ccio_unmap_phys(9)
• ccio_alloc(9)
• ccio_free(9)
• ccio_map_sg(9)
• ccio_unmap_sg(9)
• ccio_find_ioc(9)
• ccio_get_iommu(9)
• ccio_ioc_init(9)
• ccio_probe(9)
• ccio_init(9)

signed off from ./drivers/parisc, dated October 2026, for ccio_free_range(9) — mwah 💋