arch/arm64/include/uapi/asm/mman.h

File Facts

System

Linux kernel

Corpus path

arch/arm64/include/uapi/asm/mman.h

Extension

.h

Size

552 bytes

Lines

20

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

• asm-generic/mman.h

Detected Declarations

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

Annotated Snippet

#ifndef _UAPI__ASM_MMAN_H
#define _UAPI__ASM_MMAN_H

#include <asm-generic/mman.h>

#define PROT_BTI	0x10		/* BTI guarded page */
#define PROT_MTE	0x20		/* Normal Tagged mapping */

/* Override any generic PKEY permission defines */
#define PKEY_DISABLE_EXECUTE	0x4
#define PKEY_DISABLE_READ	0x8
#undef PKEY_ACCESS_MASK
#define PKEY_ACCESS_MASK       (PKEY_DISABLE_ACCESS |\
				PKEY_DISABLE_WRITE  |\
				PKEY_DISABLE_READ   |\
				PKEY_DISABLE_EXECUTE)

#endif /* ! _UAPI__ASM_MMAN_H */

Annotation

• Immediate include surface: `asm-generic/mman.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.