tools/include/linux/mm.h

Source file repositories/reference/linux-study-clean/tools/include/linux/mm.h

File Facts

System
Linux kernel
Corpus path
tools/include/linux/mm.h
Extension
.h
Size
1041 bytes
Lines
50
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _TOOLS_LINUX_MM_H
#define _TOOLS_LINUX_MM_H

#include <linux/align.h>
#include <linux/mmzone.h>
#include <linux/sizes.h>

#define PAGE_SHIFT		12
#define PAGE_SIZE		(_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK		(~(PAGE_SIZE - 1))

#define PHYS_ADDR_MAX	(~(phys_addr_t)0)

#define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE)
#define PAGE_ALIGN_DOWN(addr) ALIGN_DOWN(addr, PAGE_SIZE)

#define __va(x) ((void *)((unsigned long)(x)))
#define __pa(x) ((unsigned long)(x))
#define __pa_symbol(x) ((unsigned long)(x))

#define pfn_to_page(pfn) ((void *)((pfn) * PAGE_SIZE))

#define phys_to_virt phys_to_virt
static inline void *phys_to_virt(unsigned long address)
{
	return __va(address);
}

#define virt_to_phys virt_to_phys
static inline phys_addr_t virt_to_phys(volatile void *address)
{
	return (phys_addr_t)address;
}

static inline void totalram_pages_inc(void)
{
}

static inline void totalram_pages_add(long count)
{
}

static inline int early_pfn_to_nid(unsigned long pfn)
{
	return 0;
}

#endif

Annotation

Implementation Notes