arch/x86/include/asm/mman.h

File Facts

System

Linux kernel

Corpus path

arch/x86/include/asm/mman.h

Extension

.h

Size

412 bytes

Lines

16

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

• uapi/asm/mman.h

Detected Declarations

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

Annotated Snippet

#ifndef __ASM_MMAN_H__
#define __ASM_MMAN_H__

#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
#define arch_calc_vm_prot_bits(prot, key) (		\
		((key) & 0x1 ? VM_PKEY_BIT0 : 0) |      \
		((key) & 0x2 ? VM_PKEY_BIT1 : 0) |      \
		((key) & 0x4 ? VM_PKEY_BIT2 : 0) |      \
		((key) & 0x8 ? VM_PKEY_BIT3 : 0))
#endif

#include <uapi/asm/mman.h>

#endif /* __ASM_MMAN_H__ */

Annotation

• Immediate include surface: `uapi/asm/mman.h`.
• 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.