STRUCT P2PDMA_PROVIDER(9)

💅 struct p2pdma_provider(9)

okay bestie, welcome to the Kernel API Manual ✨ this one's short and sweet ngl, but it's lowkey important so pay attention 🫶

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🌸 NAME 🌸

struct p2pdma_provider — and that's literally it 😭 the original page gives this struct no one-line description at all. A whole NAME section and the description slot is just… empty. Iconic minimalism? A vibe? We may never know 💀

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✨ SYNOPSIS ✨

here's the whole thing, no cap, exactly as it is:

struct p2pdma_provider {
    struct device *owner;
    u64 bus_offset;
};

that's the entire struct. two members. that's her 🎀

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💖 Members 💖

• owner — the Device that this provider belongs to. like, whose address space is this? it's this device's, periodt 🫶
• bus_offset — the bus offset used for p2p communication. u64, bestie, so it's got room 🌈

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🦋 Description 🦋

so what is a p2pdma provider? it's a range of MMIO address space that's available to the CPU. that's the whole description. short, sweet, and it ate 🔥

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🔍 SEE ALSO 🔍

go look at these if you want the actual lore, iykyk:

• the kernel file ./include/linux/pci-p2pdma.h
• pci_p2pdma_state(9)
• pci_p2pdma_bus_addr_map(9)

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and that's the page!! 💜 this little cutie lives in ./include/linux, it's stamped October 2026, and yeah — the page is literally titled struct p2pdma_provider(9). go off, king 👑🌸