arch/x86/include/asm/numa.h

File Facts

System

Linux kernel

Corpus path

arch/x86/include/asm/numa.h

Extension

.h

Size

1854 bytes

Lines

71

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.

Dependency Surface

• linux/nodemask.h
• linux/errno.h
• asm/topology.h
• asm/apicdef.h

Detected Declarations

• function set_apicid_to_node
• function set_apicid_to_node
• function numa_set_node

Annotated Snippet

static inline void numa_set_node(int cpu, int node)	{ }
static inline void numa_clear_node(int cpu)		{ }
static inline void init_cpu_to_node(void)		{ }
static inline void numa_add_cpu(unsigned int cpu)	{ }
static inline void numa_remove_cpu(unsigned int cpu)	{ }
static inline void init_gi_nodes(void)			{ }
static inline int num_phys_nodes(void)
{
	return 1;
}
#endif	/* CONFIG_NUMA */

#ifdef CONFIG_DEBUG_PER_CPU_MAPS
void debug_cpumask_set_cpu(unsigned int cpu, int node, bool enable);
#endif

#endif	/* _ASM_X86_NUMA_H */

Annotation

• Immediate include surface: `linux/nodemask.h`, `linux/errno.h`, `asm/topology.h`, `asm/apicdef.h`.
• Detected declarations: `function set_apicid_to_node`, `function set_apicid_to_node`, `function numa_set_node`.
• 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.