pci_epc_mem_alloc_addr(9)

🎀 pci_epc_mem_alloc_addr(9) 🎀

okay so bestie, welcome to the Kernel API Manual 💖 this one lives in section 9 and it's literally the glow-up your EPC address space has been waiting for. no cap.

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✨ NAME ✨

pci_epc_mem_alloc_addr — grab a memory address out of the EPC addr space, slay 💅

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🌸 SYNOPSIS 🌸

void __iomem * pci_epc_mem_alloc_addr (struct pci_epc *epc , phys_addr_t
*phys_addr , size_t size );

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🦋 ARGUMENTS 🦋

• epc — the EPC device you're allocating memory on, like obviously, it's the main character here 👑
• phys_addr — you drop the allocated physical address in here, she's an out-param and she's serving 🫶
• size — how much address space you want, in all its size_t glory ✨

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💜 DESCRIPTION 💜

okay so the whole vibe: you invoke this when you need to allocate a memory address from the EPC address space. and like, why would you? the usual reason is to map the remote RC address into the local system — that's it, that's the tea 🍓 ngl it's pretty iconic.

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🌈 SEE ALSO 🌈

Kernel file ./drivers/pci/endpoint/pci-epc-mem.c — go read her, she ate 💀

• pci_epc_mem_get_order(9)
• pci_epc_multi_mem_init(9)
• pci_epc_mem_init(9)
• pci_epc_mem_exit(9)
• pci_epc_mem_free_addr(9)

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and that's the whole page, bestie 💖 this one's from the kernel API manual, lives in ./drivers/pci/endpoint, dated October 2026 — no gatekeeping, go forth and allocate 🧚‍♀️✨ periodt.