LXR linux/include/asm-sh/cpu-sh4/cacheflush.h

   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