arch/x86/pci/bus_numa.h

File Facts

System

Linux kernel

Corpus path

arch/x86/pci/bus_numa.h

Extension

.h

Size

704 bytes

Lines

28

Domain

Architecture Layer

Bucket

arch/x86

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct pci_root_res
• struct pci_root_info

Annotated Snippet

struct pci_root_res {
	struct list_head list;
	struct resource res;
};

struct pci_root_info {
	struct list_head list;
	char name[12];
	struct list_head resources;
	struct resource busn;
	int node;
	int link;
};

extern struct list_head pci_root_infos;
struct pci_root_info *alloc_pci_root_info(int bus_min, int bus_max,
						int node, int link);
extern void update_res(struct pci_root_info *info, resource_size_t start,
		      resource_size_t end, unsigned long flags, int merge);
#endif

Annotation

• Detected declarations: `struct pci_root_res`, `struct pci_root_info`.
• Atlas domain: Architecture Layer / arch/x86.
• 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.