dd5dd8cfd9
The old cache coherency function names where wrong and misleading. The new names are (purposely different from vendor manuals) * commit_* (write-back only) * discard_* (removing lines from cache only) * commit_discard_* (write-back and removing lines from cache) It's suspected the old names have led to wrong uses. The old names still exist (as aliases) so every call via the old names need to be double checked and changed to the new name. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28045 a1c6a512-1295-4272-9138-f99709370657
94 lines
3.1 KiB
C
94 lines
3.1 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2006,2007 by Greg White
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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/* This file MUST be included in your system-target.h file if you want arm
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* cache coherence functions to be called (I.E. during codec load, etc).
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*/
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#ifndef MMU_ARM_H
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#define MMU_ARM_H
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#define CACHE_ALL 0x0C
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#define CACHE_NONE 0
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#define BUFFERED 0x04
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void memory_init(void);
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void ttb_init(void);
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void enable_mmu(void);
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void map_section(unsigned int pa, unsigned int va, int mb, int flags);
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/* Note for the function names
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*
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* ARM refers to the cache coherency functions as (in the CPU manuals):
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* clean (write-back)
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* clean and invalidate (write-back and removing the line from cache)
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* invalidate (removing from cache without write-back)
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*
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* The deprecated functions below don't follow the above (which is why
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* they're deprecated).
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*
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* This names have been proven to cause confusion, therefore we use:
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* commit
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* commit and discard
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* discard
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*/
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/* Commits entire DCache */
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void commit_dcache(void);
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/* deprecated alias */
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void clean_dcache(void);
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/* Commit and discard entire DCache, will do writeback */
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void commit_discard_dcache(void);
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/* deprecated alias */
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void invalidate_dcache(void);
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/* Write DCache back to RAM for the given range and remove cache lines
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* from DCache afterwards */
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void commit_discard_dcache_range(const void *base, unsigned int size);
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/* deprecated alias */
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void invalidate_dcache_range(const void *base, unsigned int size);
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/* Write DCache back to RAM for the given range */
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void commit_dcache_range(const void *base, unsigned int size);
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/* deprecated alias */
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void clean_dcache_range(const void *base, unsigned int size);
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/*
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* Remove cache lines for the given range from DCache
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* will *NOT* do write back except for buffer edges not on a line boundary
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*/
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void discard_dcache_range(const void *base, unsigned int size);
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/* deprecated alias */
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void dump_dcache_range(const void *base, unsigned int size);
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/* Discards the entire ICache, and commit+discards the entire DCache */
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void commit_discard_idcache(void);
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/* deprecated alias */
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void invalidate_idcache(void);
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#define HAVE_CPUCACHE_COMMIT_DISCARD
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#define HAVE_CPUCACHE_COMMIT
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/* deprecated alias */
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#define HAVE_CPUCACHE_INVALIDATE
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#define HAVE_CPUCACHE_FLUSH
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#endif /* MMU_ARM_H */
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