52 строки
1.3 KiB
C
52 строки
1.3 KiB
C
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/*
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* linux/include/asm-arm/page-nommu.h
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*
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* Copyright (C) 2004 Hyok S. Choi
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _ASMARM_PAGE_NOMMU_H
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#define _ASMARM_PAGE_NOMMU_H
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#if !defined(CONFIG_SMALL_TASKS) && PAGE_SHIFT < 13
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#define KTHREAD_SIZE (8192)
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#else
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#define KTHREAD_SIZE PAGE_SIZE
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#endif
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#define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
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#define free_user_page(page, addr) free_page(addr)
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#define clear_page(page) memset((page), 0, PAGE_SIZE)
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#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
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#define clear_user_page(page, vaddr, pg) clear_page(page)
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#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
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/*
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* These are used to make use of C type-checking..
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*/
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typedef unsigned long pte_t;
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typedef unsigned long pmd_t;
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typedef unsigned long pgd_t[2];
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typedef unsigned long pgprot_t;
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#define pte_val(x) (x)
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#define pmd_val(x) (x)
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#define pgd_val(x) ((x)[0])
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#define pgprot_val(x) (x)
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#define __pte(x) (x)
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#define __pmd(x) (x)
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#define __pgprot(x) (x)
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/* to align the pointer to the (next) page boundary */
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#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
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extern unsigned long memory_start;
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extern unsigned long memory_end;
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#endif
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