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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006,2007 by Greg White
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
/* This file MUST be included in your system-target.h file if you want arm
* cache coherence functions to be called (I.E. during codec load, etc).
*/
#ifndef MMU_ARM_H
#define MMU_ARM_H
#define CACHE_ALL 0x0C
#define CACHE_NONE 0
#define BUFFERED 0x04
void memory_init(void);
void ttb_init(void);
void enable_mmu(void);
void map_section(unsigned int pa, unsigned int va, int mb, int flags);
/* Note for the function names
*
* ARM refers to the cache coherency functions as (in the CPU manuals):
* clean (write-back)
* clean and invalidate (write-back and removing the line from cache)
* invalidate (removing from cache without write-back)
*
* The deprecated functions below don't follow the above (which is why
* they're deprecated).
*
* This names have been proven to cause confusion, therefore we use:
* commit
* commit and discard
* discard
*/
/* Commits entire DCache */
void commit_dcache(void);
/* Commit and discard entire DCache, will do writeback */
void commit_discard_dcache(void);
/* Write DCache back to RAM for the given range and remove cache lines
* from DCache afterwards */
void commit_discard_dcache_range(const void *base, unsigned int size);
/* Write DCache back to RAM for the given range */
void commit_dcache_range(const void *base, unsigned int size);
/*
* Remove cache lines for the given range from DCache
* will *NOT* do write back except for buffer edges not on a line boundary
*/
void discard_dcache_range(const void *base, unsigned int size);
/* Discards the entire ICache, and commit+discards the entire DCache */
void commit_discard_idcache(void);
#endif /* MMU_ARM_H */
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