LXR linux/arch/arm/include/asm/outercache.h

   1/*
   2 * arch/arm/include/asm/outercache.h
   3 *
   4 * Copyright (C) 2010 ARM Ltd.
   5 * Written by Catalin Marinas <catalin.marinas@arm.com>
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License version 2 as
   9 * published by the Free Software Foundation.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19 */
  20
  21#ifndef __ASM_OUTERCACHE_H
  22#define __ASM_OUTERCACHE_H
  23
  24struct outer_cache_fns {
  25        void (*inv_range)(unsigned long, unsigned long);
  26        void (*clean_range)(unsigned long, unsigned long);
  27        void (*flush_range)(unsigned long, unsigned long);
  28        void (*flush_all)(void);
  29        void (*inv_all)(void);
  30        void (*disable)(void);
  31#ifdef CONFIG_OUTER_CACHE_SYNC
  32        void (*sync)(void);
  33#endif
  34};
  35
  36#ifdef CONFIG_OUTER_CACHE
  37
  38extern struct outer_cache_fns outer_cache;
  39
  40static inline void outer_inv_range(unsigned long start, unsigned long end)
  41{
  42        if (outer_cache.inv_range)
  43                outer_cache.inv_range(start, end);
  44}
  45static inline void outer_clean_range(unsigned long start, unsigned long end)
  46{
  47        if (outer_cache.clean_range)
  48                outer_cache.clean_range(start, end);
  49}
  50static inline void outer_flush_range(unsigned long start, unsigned long end)
  51{
  52        if (outer_cache.flush_range)
  53                outer_cache.flush_range(start, end);
  54}
  55
  56static inline void outer_flush_all(void)
  57{
  58        if (outer_cache.flush_all)
  59                outer_cache.flush_all();
  60}
  61
  62static inline void outer_inv_all(void)
  63{
  64        if (outer_cache.inv_all)
  65                outer_cache.inv_all();
  66}
  67
  68static inline void outer_disable(void)
  69{
  70        if (outer_cache.disable)
  71                outer_cache.disable();
  72}
  73
  74#else
  75
  76static inline void outer_inv_range(unsigned long start, unsigned long end)
  77{ }
  78static inline void outer_clean_range(unsigned long start, unsigned long end)
  79{ }
  80static inline void outer_flush_range(unsigned long start, unsigned long end)
  81{ }
  82static inline void outer_flush_all(void) { }
  83static inline void outer_inv_all(void) { }
  84static inline void outer_disable(void) { }
  85
  86#endif
  87
  88#ifdef CONFIG_OUTER_CACHE_SYNC
  89static inline void outer_sync(void)
  90{
  91        if (outer_cache.sync)
  92                outer_cache.sync();
  93}
  94#else
  95static inline void outer_sync(void)
  96{ }
  97#endif
  98
  99#endif  /* __ASM_OUTERCACHE_H */
 100