arch/powerpc/include/asm/book3s/64/pkeys.h

File Facts

System

Linux kernel

Corpus path

arch/powerpc/include/asm/book3s/64/pkeys.h

Extension

.h

Size

519 bytes

Lines

26

Domain

Architecture Layer

Bucket

arch/powerpc

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/book3s/64/hash-pkey.h

Detected Declarations

• function vmflag_to_pte_pkey_bits
• function pte_to_pkey_bits

Annotated Snippet

#ifndef _ASM_POWERPC_BOOK3S_64_PKEYS_H
#define _ASM_POWERPC_BOOK3S_64_PKEYS_H

#include <asm/book3s/64/hash-pkey.h>

static inline u64 vmflag_to_pte_pkey_bits(vm_flags_t vm_flags)
{
	if (!mmu_has_feature(MMU_FTR_PKEY))
		return 0x0UL;

	if (radix_enabled())
		BUG();
	return hash__vmflag_to_pte_pkey_bits(vm_flags);
}

static inline u16 pte_to_pkey_bits(u64 pteflags)
{
	if (radix_enabled())
		BUG();
	return hash__pte_to_pkey_bits(pteflags);
}

#endif /*_ASM_POWERPC_KEYS_H */

Annotation

• Immediate include surface: `asm/book3s/64/hash-pkey.h`.
• Detected declarations: `function vmflag_to_pte_pkey_bits`, `function pte_to_pkey_bits`.
• Atlas domain: Architecture Layer / arch/powerpc.
• 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.