47 строки
1.2 KiB
C
47 строки
1.2 KiB
C
/*
|
|
* arch/arm/include/asm/page-nommu.h
|
|
*
|
|
* Copyright (C) 2004 Hyok S. Choi
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef _ASMARM_PAGE_NOMMU_H
|
|
#define _ASMARM_PAGE_NOMMU_H
|
|
|
|
#if !defined(CONFIG_SMALL_TASKS) && PAGE_SHIFT < 13
|
|
#define KTHREAD_SIZE (8192)
|
|
#else
|
|
#define KTHREAD_SIZE PAGE_SIZE
|
|
#endif
|
|
|
|
#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
|
|
#define free_user_page(page, addr) free_page(addr)
|
|
|
|
#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
|