arch/arm64/include/asm/pci.h

File Facts

System

Linux kernel

Corpus path

arch/arm64/include/asm/pci.h

Extension

.h

Size

469 bytes

Lines

25

Domain

Architecture Layer

Bucket

arch/arm64

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

• linux/types.h
• linux/slab.h
• linux/dma-mapping.h
• asm/io.h
• asm-generic/pci.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __ASM_PCI_H
#define __ASM_PCI_H

#include <linux/types.h>
#include <linux/slab.h>
#include <linux/dma-mapping.h>

#include <asm/io.h>

#define PCIBIOS_MIN_IO		0x1000

/*
 * Set to 1 if the kernel should re-assign all PCI bus numbers
 */
#define pcibios_assign_all_busses() \
	(pci_has_flag(PCI_REASSIGN_ALL_BUS))

#define arch_can_pci_mmap_wc() 1

/* Generic PCI */
#include <asm-generic/pci.h>

#endif  /* __ASM_PCI_H */

Annotation

• Immediate include surface: `linux/types.h`, `linux/slab.h`, `linux/dma-mapping.h`, `asm/io.h`, `asm-generic/pci.h`.
• Atlas domain: Architecture Layer / arch/arm64.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.