arch/sparc/include/asm/spinlock_types.h

File Facts

System

Linux kernel

Corpus path

arch/sparc/include/asm/spinlock_types.h

Extension

.h

Size

549 bytes

Lines

26

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

• asm-generic/qspinlock_types.h
• asm-generic/qrwlock_types.h

Detected Declarations

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

Annotated Snippet

#ifndef __SPARC_SPINLOCK_TYPES_H
#define __SPARC_SPINLOCK_TYPES_H

#ifdef CONFIG_QUEUED_SPINLOCKS
#include <asm-generic/qspinlock_types.h>
#else

typedef struct {
	volatile unsigned char lock;
} arch_spinlock_t;

#define __ARCH_SPIN_LOCK_UNLOCKED	{ 0 }
#endif /* CONFIG_QUEUED_SPINLOCKS */

#ifdef CONFIG_QUEUED_RWLOCKS
#include <asm-generic/qrwlock_types.h>
#else
typedef struct {
	volatile unsigned int lock;
} arch_rwlock_t;

#define __ARCH_RW_LOCK_UNLOCKED		{ 0 }
#endif /* CONFIG_QUEUED_RWLOCKS */
#endif

Annotation

• Immediate include surface: `asm-generic/qspinlock_types.h`, `asm-generic/qrwlock_types.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.