arch/powerpc/include/asm/set_memory.h

File Facts

System

Linux kernel

Corpus path

arch/powerpc/include/asm/set_memory.h

Extension

.h

Size

1446 bytes

Lines

52

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

• No C-style include directives detected by the generator.

Detected Declarations

• function set_memory_ro
• function set_memory_rw
• function set_memory_nx
• function set_memory_x
• function set_memory_np
• function set_memory_p
• function set_memory_rox

Annotated Snippet

#ifndef _ASM_POWERPC_SET_MEMORY_H
#define _ASM_POWERPC_SET_MEMORY_H

#define SET_MEMORY_RO	0
#define SET_MEMORY_RW	1
#define SET_MEMORY_NX	2
#define SET_MEMORY_X	3
#define SET_MEMORY_NP	4	/* Set memory non present */
#define SET_MEMORY_P	5	/* Set memory present */
#define SET_MEMORY_ROX	6

int change_memory_attr(unsigned long addr, int numpages, long action);

static inline int __must_check set_memory_ro(unsigned long addr, int numpages)
{
	return change_memory_attr(addr, numpages, SET_MEMORY_RO);
}

static inline int __must_check set_memory_rw(unsigned long addr, int numpages)
{
	return change_memory_attr(addr, numpages, SET_MEMORY_RW);
}

static inline int __must_check set_memory_nx(unsigned long addr, int numpages)
{
	return change_memory_attr(addr, numpages, SET_MEMORY_NX);
}

static inline int __must_check set_memory_x(unsigned long addr, int numpages)
{
	return change_memory_attr(addr, numpages, SET_MEMORY_X);
}

static inline int __must_check set_memory_np(unsigned long addr, int numpages)
{
	return change_memory_attr(addr, numpages, SET_MEMORY_NP);
}

static inline int __must_check set_memory_p(unsigned long addr, int numpages)
{
	return change_memory_attr(addr, numpages, SET_MEMORY_P);
}

static inline int __must_check set_memory_rox(unsigned long addr, int numpages)
{
	return change_memory_attr(addr, numpages, SET_MEMORY_ROX);
}
#define set_memory_rox set_memory_rox

#endif

Annotation

• Detected declarations: `function set_memory_ro`, `function set_memory_rw`, `function set_memory_nx`, `function set_memory_x`, `function set_memory_np`, `function set_memory_p`, `function set_memory_rox`.
• 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.