arch/arm64/include/asm/mmu.h

File Facts

System

Linux kernel

Corpus path

arch/arm64/include/asm/mmu.h

Extension

.h

Size

3520 bytes

Lines

111

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• asm/cputype.h
• linux/refcount.h
• asm/cpufeature.h

Detected Declarations

• function atomic64_read
• function kaslr_requires_kpti
• function kpti_install_ng_mappings

Annotated Snippet

static inline void kpti_install_ng_mappings(void) {}
#endif

extern bool page_alloc_available;

#endif	/* !__ASSEMBLER__ */
#endif

Annotation

• Immediate include surface: `asm/cputype.h`, `linux/refcount.h`, `asm/cpufeature.h`.
• Detected declarations: `function atomic64_read`, `function kaslr_requires_kpti`, `function kpti_install_ng_mappings`.
• Atlas domain: Architecture Layer / arch/arm64.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.