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 (*clean_all)(void);
  32         void (*inv_all)(void);
  33         void (*disable)(void);
  34 #ifdef CONFIG_OUTER_CACHE_SYNC
  35         void (*sync)(void);
  36 #endif
  37         void (*set_debug)(unsigned long);
  38         void (*resume)(void);
  39 };
  40
  41 extern struct outer_cache_fns outer_cache;
  42
  43 #ifdef CONFIG_OUTER_CACHE
  44
  45 static inline void outer_inv_range(phys_addr_t start, phys_addr_t end)
  46 {
  47         if (outer_cache.inv_range)
  48                 outer_cache.inv_range(start, end);
  49 }
  50 static inline void outer_clean_range(phys_addr_t start, phys_addr_t end)
  51 {
  52         if (outer_cache.clean_range)
  53                 outer_cache.clean_range(start, end);
  54 }
  55 static inline void outer_flush_range(phys_addr_t start, phys_addr_t end)
  56 {
  57         if (outer_cache.flush_range)
  58                 outer_cache.flush_range(start, end);
  59 }
  60 static inline void outer_clean_all(void)
  61 {
  62         if (outer_cache.clean_all)
  63                 outer_cache.clean_all();
  64 }
  65 static inline void outer_flush_all(void)
  66 {
  67         if (outer_cache.flush_all)
  68                 outer_cache.flush_all();
  69 }
  70
  71 static inline void outer_inv_all(void)
  72 {
  73         if (outer_cache.inv_all)
  74                 outer_cache.inv_all();
  75 }
  76
  77 static inline void outer_disable(void)
  78 {
  79         if (outer_cache.disable)
  80                 outer_cache.disable();
  81 }
  82
  83 static inline void outer_resume(void)
  84 {
  85         if (outer_cache.resume)
  86                 outer_cache.resume();
  87 }
  88
  89 #else
  90
  91 static inline void outer_inv_range(phys_addr_t start, phys_addr_t end)
  92 { }
  93 static inline void outer_clean_range(phys_addr_t start, phys_addr_t end)
  94 { }
  95 static inline void outer_flush_range(phys_addr_t start, phys_addr_t end)
  96 { }
  97 static inline void outer_clean_all(void)
  98 { }
  99 static inline void outer_flush_all(void) { }
 100 static inline void outer_inv_all(void) { }
 101 static inline void outer_disable(void) { }
 102 static inline void outer_resume(void) { }
 103
 104 #endif
 105
 106 #ifdef CONFIG_OUTER_CACHE_SYNC
 107 static inline void outer_sync(void)
 108 {
 109         if (outer_cache.sync)
 110                 outer_cache.sync();
 111 }
 112 #else
 113 static inline void outer_sync(void)
 114 { }
 115 #endif
 116
 117 #endif  /* __ASM_OUTERCACHE_H */