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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: Karolina Drobnik <karolinadrobnik@gmail.com>
Signed-off-by: Mike Rapoport <rppt@kernel.org>
Link: https://lore.kernel.org/r/e8b83d96fec95f3556e80f001d9d5cbe18b8ad5f.1643796665.git.karolinadrobnik@gmail.com
This commit is contained in:
Karolina Drobnik 2022-02-02 12:03:04 +01:00 committed by Mike Rapoport
parent 9c07af207c
commit 2473bc35ba
1 changed files with 42 additions and 0 deletions
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42
tools/include/linux/mm.h Normal file
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/* 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