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