sba_check_pdir(9)

💅 sba_check_pdir(9) — debugging only, consistency checker ✨

🌸 NAME 🌸

sba_check_pdir — debugging only - consistency checker

✨ SYNOPSIS ✨

int sba_check_pdir (struct ioc *ioc , char *msg );

🎀 ARGUMENTS 🎀

• ioc — the IO MMU structure which owns the pdir we are interested in.
• msg — text to print ont the output line (yes, “ont” is what the source says, and we respect the iconique typo 💅).

🦋 DESCRIPTION 🦋

Okay so the whole job is: verify the resource map and pdir state is consistent. That’s it. It’s a consistency checker, bestie — literally here to check that those two things line up. No cap. 💖

Debugging only! This one is a consistency checker, so treat it as such, okay? 🫶

🌈 SEE ALSO 🌈

Kernel file ./drivers/parisc/sba_iommu.c — and the whole friend group:

• sba_dump_ranges(9)
• sba_dump_tlb(9)
• sba_dump_pdir_entry(9)
• sba_dump_sg(9)
• sba_search_bitmap(9)
• sba_alloc_range(9)
• sba_free_range(9)
• sba_io_pdir_entry(9)
• sba_mark_invalid(9)
• sba_dma_supported(9)
• sba_map_single(9)
• sba_unmap_phys(9)
• sba_alloc(9)
• sba_free(9)
• sba_map_sg(9)
• sba_unmap_sg(9)
• sba_get_iommu(9)
• sba_directed_lmmio(9)
• sba_distributed_lmmio(9)

xoxo, from the source at ./drivers/parisc, dated October 2026 — sba_check_pdir(9) out 💅✨