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/*
* Copyright (C) 2003 Microtronix Datacom Ltd.
* Copyright (C) 2000-2002 Greg Ungerer <gerg@snapgear.com>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#ifndef _ASM_NIOS2_CACHEFLUSH_H
#define _ASM_NIOS2_CACHEFLUSH_H
#include <linux/mm_types.h>
/*
* This flag is used to indicate that the page pointed to by a pte is clean
* and does not require cleaning before returning it to the user.
*/
#define PG_dcache_clean PG_arch_1
struct mm_struct;
extern void flush_cache_all(void);
extern void flush_cache_mm(struct mm_struct *mm);
extern void flush_cache_dup_mm(struct mm_struct *mm);
extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end);
extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
unsigned long pfn);
#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
extern void flush_dcache_page(struct page *page);
extern void flush_icache_range(unsigned long start, unsigned long end);
extern void flush_icache_page(struct vm_area_struct *vma, struct page *page);
#define flush_cache_vmap(start, end) flush_dcache_range(start, end)
#define flush_cache_vunmap(start, end) flush_dcache_range(start, end)
extern void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long user_vaddr,
void *dst, void *src, int len);
extern void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long user_vaddr,
void *dst, void *src, int len);
extern void flush_dcache_range(unsigned long start, unsigned long end);
extern void invalidate_dcache_range(unsigned long start, unsigned long end);
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
#endif /* _ASM_NIOS2_CACHEFLUSH_H */