pci_free_p2pmem(9)

🌸 NAME 🌸

okay so bestie, welcome to the pci_free_p2pmem(9) page from the Kernel API Manual — and it is literally here for one thing: free peer-to-peer DMA memory. That’s the whole assignment. 💖

✨ SYNOPSIS ✨

void pci_free_p2pmem (struct pci_dev *pdev , void *addr , size_t size );

💅 ARGUMENTS 💅

• pdev — the device the memory was allocated from. That’s the one, bestie 🫶
• addr — address of the memory that was allocated. The actual address, no cap ✨
• size — number of bytes that were allocated. Pretty self-explanatory, fr fr 💅

🦋 SEE ALSO 🦋

Kernel file ./drivers/pci/p2pdma.c plus the whole reference friend group:

• pcim_p2pdma_init(9)
• pcim_p2pdma_provider(9)
• pci_p2pdma_add_resource(9)
• pci_p2pdma_distance_many(9)
• pci_has_p2pmem(9)
• pci_p2pmem_find_many(9)
• pci_alloc_p2pmem(9)
• pci_p2pmem_virt_to_bus(9)
• pci_p2pmem_alloc_sgl(9)
• pci_p2pmem_free_sgl(9)
• pci_p2pmem_publish(9)
• pci_p2pdma_map_type(9)
• pci_p2pdma_enable_store(9)
• pci_p2pdma_enable_show(9)

kisses and free-memory vibes from ./drivers/pci, dated October 2026 💖✨