1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * arch/arm/include/asm/page-nommu.h 4 * 5 * Copyright (C) 2004 Hyok S. Choi 6 */ 7 8 #ifndef _ASMARM_PAGE_NOMMU_H 9 #define _ASMARM_PAGE_NOMMU_H 10 11 #define clear_page(page) memset((page), 0, PAGE_SIZE) 12 #define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) 13 14 #define clear_user_page(page, vaddr, pg) clear_page(page) 15 #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) 16 17 /* 18 * These are used to make use of C type-checking.. 19 */ 20 typedef unsigned long pte_t; 21 typedef unsigned long pmd_t; 22 typedef unsigned long pgd_t[2]; 23 typedef unsigned long pgprot_t; 24 25 #define pte_val(x) (x) 26 #define pmd_val(x) (x) 27 #define pgd_val(x) ((x)[0]) 28 #define pgprot_val(x) (x) 29 30 #define __pte(x) (x) 31 #define __pmd(x) (x) 32 #define __pgprot(x) (x) 33 34 #endif 35