Linux 4.6-rc6
[linux/fpc-iii.git] / arch / nios2 / include / asm / cacheflush.h
blob52abba973dc2adab1b56d70fd06486dacba0f336
1 /*
2 * Copyright (C) 2003 Microtronix Datacom Ltd.
3 * Copyright (C) 2000-2002 Greg Ungerer <gerg@snapgear.com>
5 * This file is subject to the terms and conditions of the GNU General Public
6 * License. See the file "COPYING" in the main directory of this archive
7 * for more details.
8 */
10 #ifndef _ASM_NIOS2_CACHEFLUSH_H
11 #define _ASM_NIOS2_CACHEFLUSH_H
13 #include <linux/mm_types.h>
16 * This flag is used to indicate that the page pointed to by a pte is clean
17 * and does not require cleaning before returning it to the user.
19 #define PG_dcache_clean PG_arch_1
21 struct mm_struct;
23 extern void flush_cache_all(void);
24 extern void flush_cache_mm(struct mm_struct *mm);
25 extern void flush_cache_dup_mm(struct mm_struct *mm);
26 extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
27 unsigned long end);
28 extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,
29 unsigned long pfn);
30 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
31 extern void flush_dcache_page(struct page *page);
33 extern void flush_icache_range(unsigned long start, unsigned long end);
34 extern void flush_icache_page(struct vm_area_struct *vma, struct page *page);
36 #define flush_cache_vmap(start, end) flush_dcache_range(start, end)
37 #define flush_cache_vunmap(start, end) flush_dcache_range(start, end)
39 extern void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
40 unsigned long user_vaddr,
41 void *dst, void *src, int len);
42 extern void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
43 unsigned long user_vaddr,
44 void *dst, void *src, int len);
46 extern void flush_dcache_range(unsigned long start, unsigned long end);
47 extern void invalidate_dcache_range(unsigned long start, unsigned long end);
49 #define flush_dcache_mmap_lock(mapping) do { } while (0)
50 #define flush_dcache_mmap_unlock(mapping) do { } while (0)
52 #endif /* _ASM_NIOS2_CACHEFLUSH_H */