1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Based on arch/arm/include/asm/page.h 4 * 5 * Copyright (C) 1995-2003 Russell King 6 * Copyright (C) 2017 ARM Ltd. 7 */ 8 #ifndef __ASM_PAGE_DEF_H 9 #define __ASM_PAGE_DEF_H 10 11 #include <linux/const.h> 12 13 /* PAGE_SHIFT determines the page size */ 14 /* CONT_SHIFT determines the number of pages which can be tracked together */ 15 #define PAGE_SHIFT CONFIG_ARM64_PAGE_SHIFT 16 #define CONT_SHIFT CONFIG_ARM64_CONT_SHIFT 17 #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) 18 #define PAGE_MASK (~(PAGE_SIZE-1)) 19 20 #define CONT_SIZE (_AC(1, UL) << (CONT_SHIFT + PAGE_SHIFT)) 21 #define CONT_MASK (~(CONT_SIZE-1)) 22 23 #endif /* __ASM_PAGE_DEF_H */ 24