include/asm/page-nommu.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  *  arch/arm/include/asm/page-nommu.h
0004  *
0005  *  Copyright (C) 2004 Hyok S. Choi
0006  */
0007
0008 #ifndef _ASMARM_PAGE_NOMMU_H
0009 #define _ASMARM_PAGE_NOMMU_H
0010
0011 #define clear_page(page)    memset((page), 0, PAGE_SIZE)
0012 #define copy_page(to,from)  memcpy((to), (from), PAGE_SIZE)
0013
0014 #define clear_user_page(page, vaddr, pg)    clear_page(page)
0015 #define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
0016
0017 /*
0018  * These are used to make use of C type-checking..
0019  */
0020 typedef unsigned long pte_t;
0021 typedef unsigned long pmd_t;
0022 typedef unsigned long pgd_t[2];
0023 typedef unsigned long pgprot_t;
0024
0025 #define pte_val(x)      (x)
0026 #define pmd_val(x)      (x)
0027 #define pgd_val(x)  ((x)[0])
0028 #define pgprot_val(x)   (x)
0029
0030 #define __pte(x)        (x)
0031 #define __pmd(x)        (x)
0032 #define __pgprot(x)     (x)
0033
0034 #endif