arch/arm64/include/asm/bitops.h

File Facts

System

Linux kernel

Corpus path

arch/arm64/include/asm/bitops.h

Extension

.h

Size

813 bytes

Lines

32

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/compiler.h
• asm-generic/bitops/builtin-__ffs.h
• asm-generic/bitops/builtin-ffs.h
• asm-generic/bitops/builtin-__fls.h
• asm-generic/bitops/builtin-fls.h
• asm-generic/bitops/ffz.h
• asm-generic/bitops/fls64.h
• asm-generic/bitops/sched.h
• asm-generic/bitops/hweight.h
• asm-generic/bitops/atomic.h
• asm-generic/bitops/lock.h
• asm-generic/bitops/non-atomic.h
• asm-generic/bitops/le.h
• asm-generic/bitops/ext2-atomic-setbit.h

Detected Declarations

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

Annotated Snippet

#ifndef __ASM_BITOPS_H
#define __ASM_BITOPS_H

#include <linux/compiler.h>

#ifndef _LINUX_BITOPS_H
#error only <linux/bitops.h> can be included directly
#endif

#include <asm-generic/bitops/builtin-__ffs.h>
#include <asm-generic/bitops/builtin-ffs.h>
#include <asm-generic/bitops/builtin-__fls.h>
#include <asm-generic/bitops/builtin-fls.h>

#include <asm-generic/bitops/ffz.h>
#include <asm-generic/bitops/fls64.h>

#include <asm-generic/bitops/sched.h>
#include <asm-generic/bitops/hweight.h>

#include <asm-generic/bitops/atomic.h>
#include <asm-generic/bitops/lock.h>
#include <asm-generic/bitops/non-atomic.h>
#include <asm-generic/bitops/le.h>
#include <asm-generic/bitops/ext2-atomic-setbit.h>

#endif /* __ASM_BITOPS_H */

Annotation

• Immediate include surface: `linux/compiler.h`, `asm-generic/bitops/builtin-__ffs.h`, `asm-generic/bitops/builtin-ffs.h`, `asm-generic/bitops/builtin-__fls.h`, `asm-generic/bitops/builtin-fls.h`, `asm-generic/bitops/ffz.h`, `asm-generic/bitops/fls64.h`, `asm-generic/bitops/sched.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.