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