LXR linux/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
  26struct 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
  41extern struct outer_cache_fns outer_cache;
  42
  43static 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}
  48static 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}
  53static 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
  59static inline void outer_flush_all(void)
  60{
  61        if (outer_cache.flush_all)
  62                outer_cache.flush_all();
  63}
  64
  65static inline void outer_inv_all(void)
  66{
  67        if (outer_cache.inv_all)
  68                outer_cache.inv_all();
  69}
  70
  71static inline void outer_disable(void)
  72{
  73        if (outer_cache.disable)
  74                outer_cache.disable();
  75}
  76
  77#else
  78
  79static inline void outer_inv_range(phys_addr_t start, phys_addr_t end)
  80{ }
  81static inline void outer_clean_range(phys_addr_t start, phys_addr_t end)
  82{ }
  83static inline void outer_flush_range(phys_addr_t start, phys_addr_t end)
  84{ }
  85static inline void outer_flush_all(void) { }
  86static inline void outer_inv_all(void) { }
  87static inline void outer_disable(void) { }
  88
  89#endif
  90
  91#ifdef CONFIG_OUTER_CACHE_SYNC
  92static inline void outer_sync(void)
  93{
  94        if (outer_cache.sync)
  95                outer_cache.sync();
  96}
  97#else
  98static inline void outer_sync(void)
  99{ }
 100#endif
 101
 102#endif  /* __ASM_OUTERCACHE_H */
 103