arch/sparc/include/asm/cpudata_32.h

File Facts

System

Linux kernel

Corpus path

arch/sparc/include/asm/cpudata_32.h

Extension

.h

Size

729 bytes

Lines

33

Domain

Architecture Layer

Bucket

arch/sparc

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/percpu.h

Detected Declarations

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

Annotated Snippet

#ifndef _SPARC_CPUDATA_H
#define _SPARC_CPUDATA_H

#include <linux/percpu.h>

typedef struct {
	unsigned long udelay_val;
	unsigned long clock_tick;
	unsigned int counter;
#ifdef CONFIG_SMP
	unsigned int irq_resched_count;
	unsigned int irq_call_count;
#endif
	int prom_node;
	int mid;
	int next;
} cpuinfo_sparc;

DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data);
#define cpu_data(__cpu) per_cpu(__cpu_data, (__cpu))
#define local_cpu_data() (*this_cpu_ptr(&__cpu_data))

#endif /* _SPARC_CPUDATA_H */

Annotation

• Immediate include surface: `linux/percpu.h`.
• Atlas domain: Architecture Layer / arch/sparc.
• 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.