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/* 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