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
  24 struct 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         void (*set_debug)(unsigned long);
  35 };
  36
  37 #ifdef CONFIG_OUTER_CACHE
  38
  39 extern struct outer_cache_fns outer_cache;
  40
  41 static inline void outer_inv_range(unsigned long start, unsigned long end)
  42 {
  43         if (outer_cache.inv_range)
  44                 outer_cache.inv_range(start, end);
  45 }
  46 static inline void outer_clean_range(unsigned long start, unsigned long end)
  47 {
  48         if (outer_cache.clean_range)
  49                 outer_cache.clean_range(start, end);
  50 }
  51 static inline void outer_flush_range(unsigned long start, unsigned long end)
  52 {
  53         if (outer_cache.flush_range)
  54                 outer_cache.flush_range(start, end);
  55 }
  56
  57 static inline void outer_flush_all(void)
  58 {
  59         if (outer_cache.flush_all)
  60                 outer_cache.flush_all();
  61 }
  62
  63 static inline void outer_inv_all(void)
  64 {
  65         if (outer_cache.inv_all)
  66                 outer_cache.inv_all();
  67 }
  68
  69 static inline void outer_disable(void)
  70 {
  71         if (outer_cache.disable)
  72                 outer_cache.disable();
  73 }
  74
  75 #else
  76
  77 static inline void outer_inv_range(unsigned long start, unsigned long end)
  78 { }
  79 static inline void outer_clean_range(unsigned long start, unsigned long end)
  80 { }
  81 static inline void outer_flush_range(unsigned long start, unsigned long end)
  82 { }
  83 static inline void outer_flush_all(void) { }
  84 static inline void outer_inv_all(void) { }
  85 static inline void outer_disable(void) { }
  86
  87 #endif
  88
  89 #ifdef CONFIG_OUTER_CACHE_SYNC
  90 static inline void outer_sync(void)
  91 {
  92         if (outer_cache.sync)
  93                 outer_cache.sync();
  94 }
  95 #else
  96 static inline void outer_sync(void)
  97 { }
  98 #endif
  99
 100 #endif  /* __ASM_OUTERCACHE_H */