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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_cache_mm(struct mm_struct *mm);
21#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
22void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
23 unsigned long end);
24void flush_cache_page(struct vm_area_struct *vma, unsigned long addr,
25 unsigned long pfn);
26void flush_dcache_page(struct page *pg);
27
28#define flush_dcache_mmap_lock(mapping) do { } while (0)
29#define flush_dcache_mmap_unlock(mapping) do { } while (0)
30
31void flush_icache_range(unsigned long start, unsigned long end);
32void flush_cache_sigtramp(unsigned long addr);
33void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
34 unsigned long addr, int len);
35
36#define flush_icache_page(vma,pg) do { } while (0)
37
38/* Initialization of P3 area for copy_user_page */
39void p3_cache_init(void);
40
41#define PG_mapped PG_arch_1
42
43#ifdef CONFIG_MMU
44extern int remap_area_pages(unsigned long addr, unsigned long phys_addr,
45 unsigned long size, unsigned long flags);
46#else /* CONFIG_MMU */
47static inline int remap_area_pages(unsigned long addr, unsigned long phys_addr,
48 unsigned long size, unsigned long flags)
49{
50 return 0;
51}
52#endif /* CONFIG_MMU */
53#endif /* __ASM_CPU_SH4_CACHEFLUSH_H */