firmware/target/arm/mmu-arm.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006,2007 by Greg White
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 /*  This file MUST be included in your system-target.h file if you want arm
  23  *  cache coherence functions to be called (I.E. during codec load, etc).
  24  */
  25
  26 #ifndef MMU_ARM_H
  27 #define MMU_ARM_H
  28
  29 #define CACHE_ALL   0x0C
  30 #define CACHE_NONE  0
  31 #define BUFFERED    0x04
  32
  33 void memory_init(void);
  34 void ttb_init(void);
  35 void enable_mmu(void);
  36 void map_section(unsigned int pa, unsigned int va, int mb, int flags);
  37
  38 /* Cleans entire DCache */
  39 void clean_dcache(void);
  40
  41 /* Invalidate entire DCache */
  42 /* will do writeback */
  43 void invalidate_dcache(void);
  44
  45 /* Invalidate DCache for this range  */
  46 /* will do writeback */
  47 void invalidate_dcache_range(const void *base, unsigned int size);
  48
  49 /* clean DCache for this range  */
  50 /* forces DCache writeback for the specified range */
  51 void clean_dcache_range(const void *base, unsigned int size);
  52
  53 /* Dump DCache for this range  */
  54 /* Will *NOT* do write back except for buffer ends not on a line boundary */
  55 void dump_dcache_range(const void *base, unsigned int size);
  56
  57 /* Invalidate entire ICache and DCache */
  58 /* will do writeback */
  59 void invalidate_idcache(void);
  60
  61 #define HAVE_CPUCACHE_INVALIDATE
  62 #define HAVE_CPUCACHE_FLUSH
  63
  64 #endif /* MMU_ARM_H */