2 * include/asm-sh/cpu-sh4/cacheflush.h
4 * Copyright (C) 1999 Niibe Yutaka
5 * Copyright (C) 2003 Paul Mundt
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
11 #ifndef __ASM_CPU_SH4_CACHEFLUSH_H
12 #define __ASM_CPU_SH4_CACHEFLUSH_H
15 * Caches are broken on SH-4 (unless we use write-through
16 * caching; in which case they're only semi-broken),
19 void flush_cache_all(void);
20 void flush_cache_mm(struct mm_struct *mm);
21 void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
23 void flush_cache_page(struct vm_area_struct *vma, unsigned long addr,
25 void flush_dcache_page(struct page *pg);
27 #define flush_dcache_mmap_lock(mapping) do { } while (0)
28 #define flush_dcache_mmap_unlock(mapping) do { } while (0)
30 void flush_icache_range(unsigned long start, unsigned long end);
31 void flush_cache_sigtramp(unsigned long addr);
32 void flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
33 unsigned long addr, int len);
35 #define flush_icache_page(vma,pg) do { } while (0)
37 /* Initialization of P3 area for copy_user_page */
38 void p3_cache_init(void);
40 #define PG_mapped PG_arch_1
43 extern int remap_area_pages(unsigned long addr, unsigned long phys_addr,
44 unsigned long size, unsigned long flags);
45 #else /* CONFIG_MMU */
46 static inline int remap_area_pages(unsigned long addr, unsigned long phys_addr,
47 unsigned long size, unsigned long flags)
51 #endif /* CONFIG_MMU */
52 #endif /* __ASM_CPU_SH4_CACHEFLUSH_H */