1/*
2 * include/asm-sh/cpu-sh4/cacheflush.h
3 *
4 * Copyright (C) 1999 Niibe Yutaka
5 * Copyright (C) 2003 Paul Mundt
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License.  See the file "COPYING" in the main directory of this archive
9 * for more details.
10 */
11#ifndef __ASM_CPU_SH4_CACHEFLUSH_H
12#define __ASM_CPU_SH4_CACHEFLUSH_H
13
14/*
15 *  Caches are broken on SH-4 (unless we use write-through
16 *  caching; in which case they're only semi-broken),
17 *  so we need them.
18 */
19void flush_cache_all(void);
20void flush_dcache_all(void);
21void flush_cache_mm(struct mm_struct *mm);
22#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
23void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
24		       unsigned long end);
25void flush_cache_page(struct vm_area_struct *vma, unsigned long addr,
26		      unsigned long pfn);
27void flush_dcache_page(struct page *pg);
28
29#define flush_dcache_mmap_lock(mapping)		do { } while (0)
30#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
31
32void flush_icache_range(unsigned long start, unsigned long end);
33void flush_cache_sigtramp(unsigned long addr);
34void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
35			     unsigned long addr, int len);
36
37#define flush_icache_page(vma,pg)		do { } while (0)
38
39/* Initialization of P3 area for copy_user_page */
40void p3_cache_init(void);
41
42#define PG_mapped	PG_arch_1
43
44#endif /* __ASM_CPU_SH4_CACHEFLUSH_H */
45