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 #include <linux/types.h>
  25
  26 struct outer_cache_fns {
  27         void (*inv_range)(unsigned long, unsigned long);
  28         void (*clean_range)(unsigned long, unsigned long);
  29         void (*flush_range)(unsigned long, unsigned long);
  30         void (*flush_all)(void);
  31         void (*inv_all)(void);
  32         void (*disable)(void);
  33 #ifdef CONFIG_OUTER_CACHE_SYNC
  34         void (*sync)(void);
  35 #endif
  36 };
  37
  38 #ifdef CONFIG_OUTER_CACHE
  39
  40 extern struct outer_cache_fns outer_cache;
  41
  42 static inline void outer_inv_range(phys_addr_t start, phys_addr_t end)
  43 {
  44         if (outer_cache.inv_range)
  45                 outer_cache.inv_range(start, end);
  46 }
  47 static inline void outer_clean_range(phys_addr_t start, phys_addr_t end)
  48 {
  49         if (outer_cache.clean_range)
  50                 outer_cache.clean_range(start, end);
  51 }
  52 static inline void outer_flush_range(phys_addr_t start, phys_addr_t end)
  53 {
  54         if (outer_cache.flush_range)
  55                 outer_cache.flush_range(start, end);
  56 }
  57
  58 static inline void outer_flush_all(void)
  59 {
  60         if (outer_cache.flush_all)
  61                 outer_cache.flush_all();
  62 }
  63
  64 static inline void outer_inv_all(void)
  65 {
  66         if (outer_cache.inv_all)
  67                 outer_cache.inv_all();
  68 }
  69
  70 static inline void outer_disable(void)
  71 {
  72         if (outer_cache.disable)
  73                 outer_cache.disable();
  74 }
  75
  76 #else
  77
  78 static inline void outer_inv_range(phys_addr_t start, phys_addr_t end)
  79 { }
  80 static inline void outer_clean_range(phys_addr_t start, phys_addr_t end)
  81 { }
  82 static inline void outer_flush_range(phys_addr_t start, phys_addr_t end)
  83 { }
  84 static inline void outer_flush_all(void) { }
  85 static inline void outer_inv_all(void) { }
  86 static inline void outer_disable(void) { }
  87
  88 #endif
  89
  90 #ifdef CONFIG_OUTER_CACHE_SYNC
  91 static inline void outer_sync(void)
  92 {
  93         if (outer_cache.sync)
  94                 outer_cache.sync();
  95 }
  96 #else
  97 static inline void outer_sync(void)
  98 { }
  99 #endif
 100
 101 #endif  /* __ASM_OUTERCACHE_H */