Commit 2473bc35 authored by Karolina Drobnik's avatar Karolina Drobnik Committed by Mike Rapoport
Browse files

tools/include: Add mm.h file 



Add a stubbed mm.h file with dummy page-related definitions,
memory alignment and physical to virtual address conversions,
so they can be used in testing.

Signed-off-by: default avatarKarolina Drobnik <karolinadrobnik@gmail.com>
Signed-off-by: default avatarMike Rapoport <rppt@kernel.org>
Link: https://lore.kernel.org/r/e8b83d96fec95f3556e80f001d9d5cbe18b8ad5f.1643796665.git.karolinadrobnik@gmail.com
parent 9c07af20

tools/include/linux/mm.h

0 → 100644
+42 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _TOOLS_LINUX_MM_H

#define _TOOLS_LINUX_MM_H



#include <linux/mmzone.h>

#include <uapi/linux/const.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 __ALIGN_KERNEL(x, a)		__ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)

#define __ALIGN_KERNEL_MASK(x, mask)	(((x) + (mask)) & ~(mask))

#define ALIGN(x, a)			__ALIGN_KERNEL((x), (a))

#define ALIGN_DOWN(x, a)		__ALIGN_KERNEL((x) - ((a) - 1), (a))



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



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

#define __pa(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);

}



void reserve_bootmem_region(phys_addr_t start, phys_addr_t end);



static inline void totalram_pages_inc(void)

{

}



static inline void totalram_pages_add(long count)

{

}



#endif