linux/linux-5.4.31/arch/arm/include/asm/page-nommu.h

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2024-01-30 10:43:28 +00:00
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/include/asm/page-nommu.h
*
* Copyright (C) 2004 Hyok S. Choi
*/
#ifndef _ASMARM_PAGE_NOMMU_H
#define _ASMARM_PAGE_NOMMU_H
#define clear_page(page) memset((page), 0, PAGE_SIZE)
#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
#define clear_user_page(page, vaddr, pg) clear_page(page)
#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
/*
* These are used to make use of C type-checking..
*/
typedef unsigned long pte_t;
typedef unsigned long pmd_t;
typedef unsigned long pgd_t[2];
typedef unsigned long pgprot_t;
#define pte_val(x) (x)
#define pmd_val(x) (x)
#define pgd_val(x) ((x)[0])
#define pgprot_val(x) (x)
#define __pte(x) (x)
#define __pmd(x) (x)
#define __pgprot(x) (x)
#endif