pci_pri_supported(9)

💅 pci_pri_supported — the kernel API manual, bestie edition

okay so this one's from the Kernel API Manual, and honestly? it's a little one-function wonder. short, sweet, and it eats. let's get into it ✨

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🌸 NAME

pci_pri_supported — check if PRI is supported. that's it. that's the whole job. she's got one task and she slays it 💅

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🦋 SYNOPSIS

bool pci_pri_supported (struct pci_dev *pdev );

literally one argument, one bool. no drama, no cap.

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🎀 ARGUMENTS

• pdev — the PCI device structure. this is your girl right here, the struct pci_dev you're asking about 🫶

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✨ DESCRIPTION

returns true if the PRI capability is present, and false otherwise. that's the entire vibe check 💖

no side quests, no hidden behaviour, no little surprises — she looks, she tells you yes or no, she moves on. iconic behaviour honestly 👑

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🌈 SEE ALSO

okay this is where it gets good, because there is a whole friend group of these in the kernel file ./drivers/pci/ats.c and you should absolutely know them all:

• pci_ats_supported(9)
• pci_prepare_ats(9)
• pci_enable_ats(9)
• pci_disable_ats(9)
• pci_ats_queue_depth(9)
• pci_ats_page_aligned(9)
• pci_ats_required(9)
• pci_enable_pri(9)
• pci_disable_pri(9)
• pci_restore_pri_state(9)
• pci_reset_pri(9)
• pci_prg_resp_pasid_required(9)
• pci_enable_pasid(9)
• pci_disable_pasid(9)
• pci_restore_pasid_state(9)
• pci_pasid_features(9)
• pci_max_pasids(9)
• pci_pasid_status(9)

that's the whole squad fr fr — ATS girlies, PRI girlies, and PASID girlies all living in the same file 🧚‍♀️

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quick heads up bestie: this page lives under ./drivers/pci, it's dated October 2026, and it's part of the Kernel API Manual. go off, read the source, stan a PCI capability 💜⭐

stay hydrated, read your kernel docs, and remember — true means PRI is present 😭💖

mwah 💋