STRUCT PCI_EPC_MEM_WINDOW(9)

💅 struct pci_epc_mem_window(9)

okay bestie, so this is a page straight outta the Kernel API Manual — it's struct pci_epc_mem_window(9), and it's genuinely one of the more chill structs you'll meet today. no cap.

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✨ NAME ✨

struct pci_epc_mem_window — literally just describes the address window of the endpoint controller 🎀

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🦋 SYNOPSIS 🦋

struct pci_epc_mem_window {
    phys_addr_t phys_base;
    size_t size;
    size_t page_size;
 };

that's the whole thing. three fields. iconic, tbh. 🌸

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👑 Members 👑

🌈 phys_base

the physical base address of the PCI address window — like, where it physically starts, fr fr.

🍓 size

the size of the PCI address window. how much room we're working with, bestie.

🧚 page_size

size of each page ✨ (yes, that's it — one page's worth of page-ness).

lowkey the whole struct is just "where it starts, how big it is, and how it's paged." vibe check passed 💯

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🔥 SEE ALSO 🔥

• Kernel file ./include/linux/pci-epc.h
• struct pci_epc_map(9)
• enum pci_epc_aux_resource_type(9)
• struct pci_epc_aux_resource(9)
• struct pci_epc_ops(9)
• struct pci_epc_mem(9)
• struct pci_epc(9)
• enum pci_epc_bar_type(9)
• enum pci_epc_bar_rsvd_region_type(9)
• struct pci_epc_bar_rsvd_region(9)
• struct pci_epc_bar_desc(9)
• struct pci_epc_features(9)

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like, go read all of those too, iykyk 🫶

mwah 💋 — this cutie lives in ./include/linux, and the version/date stamp on it is October 2026. so it's giving very much future-forward main character energy. mark your calendars bestie 🗓️✨