Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _TOOLS_LINUX_PFN_H_
3#define _TOOLS_LINUX_PFN_H_
4
5#include <linux/mm.h>
6
7#define PFN_UP(x) (((x) + PAGE_SIZE - 1) >> PAGE_SHIFT)
8#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
9#define PFN_PHYS(x) ((phys_addr_t)(x) << PAGE_SHIFT)
10#define PHYS_PFN(x) ((unsigned long)((x) >> PAGE_SHIFT))
11#endif