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Linux/arch/arm/include/asm/page-nommu.h

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  1 /*
  2  *  arch/arm/include/asm/page-nommu.h
  3  *
  4  *  Copyright (C) 2004 Hyok S. Choi
  5  *
  6  * This program is free software; you can redistribute it and/or modify
  7  * it under the terms of the GNU General Public License version 2 as
  8  * published by the Free Software Foundation.
  9  */
 10 
 11 #ifndef _ASMARM_PAGE_NOMMU_H
 12 #define _ASMARM_PAGE_NOMMU_H
 13 
 14 #if !defined(CONFIG_SMALL_TASKS) && PAGE_SHIFT < 13
 15 #define KTHREAD_SIZE (8192)
 16 #else
 17 #define KTHREAD_SIZE PAGE_SIZE
 18 #endif
 19  
 20 #define clear_page(page)        memset((page), 0, PAGE_SIZE)
 21 #define copy_page(to,from)      memcpy((to), (from), PAGE_SIZE)
 22 
 23 #define clear_user_page(page, vaddr, pg)        clear_page(page)
 24 #define copy_user_page(to, from, vaddr, pg)     copy_page(to, from)
 25 
 26 /*
 27  * These are used to make use of C type-checking..
 28  */
 29 typedef unsigned long pte_t;
 30 typedef unsigned long pmd_t;
 31 typedef unsigned long pgd_t[2];
 32 typedef unsigned long pgprot_t;
 33 
 34 #define pte_val(x)      (x)
 35 #define pmd_val(x)      (x)
 36 #define pgd_val(x)      ((x)[0])
 37 #define pgprot_val(x)   (x)
 38 
 39 #define __pte(x)        (x)
 40 #define __pmd(x)        (x)
 41 #define __pgprot(x)     (x)
 42 
 43 #endif
 44 

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