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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112/* SPDX-License-Identifier: GPL-2.0 */#ifndef _TOOLS_LINUX_PFN_H_#define _TOOLS_LINUX_PFN_H_
#include <linux/mm.h>
#define PFN_UP(x) (((x) + PAGE_SIZE - 1) >> PAGE_SHIFT)#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)#define PFN_PHYS(x) ((phys_addr_t)(x) << PAGE_SHIFT)#define PHYS_PFN(x) ((unsigned long)((x) >> PAGE_SHIFT))#endif