66 lines
1.5 KiB
Plaintext
66 lines
1.5 KiB
Plaintext
/*
|
|
* File: Documentation/blackfin/cachefeatures.txt
|
|
* Based on:
|
|
* Author:
|
|
*
|
|
* Created:
|
|
* Description: This file contains the simple DMA Implementation for Blackfin
|
|
*
|
|
* Rev: $Id: cachefeatures.txt 2384 2006-11-01 04:12:43Z magicyang $
|
|
*
|
|
* Modified:
|
|
* Copyright 2004-2006 Analog Devices Inc.
|
|
*
|
|
* Bugs: Enter bugs at http://blackfin.uclinux.org/
|
|
*
|
|
*/
|
|
|
|
- Instruction and Data cache initialization.
|
|
icache_init();
|
|
dcache_init();
|
|
|
|
- Instruction and Data cache Invalidation Routines, when flushing the
|
|
same is not required.
|
|
_icache_invalidate();
|
|
_dcache_invalidate();
|
|
|
|
Also, for invalidating the entire instruction and data cache, the below
|
|
routines are provided (another method for invalidation, refer page no 267 and 287 of
|
|
ADSP-BF533 Hardware Reference manual)
|
|
|
|
invalidate_entire_dcache();
|
|
invalidate_entire_icache();
|
|
|
|
-External Flushing of Instruction and data cache routines.
|
|
|
|
flush_instruction_cache();
|
|
flush_data_cache();
|
|
|
|
- Internal Flushing of Instruction and Data Cache.
|
|
|
|
icplb_flush();
|
|
dcplb_flush();
|
|
|
|
- Locking the cache.
|
|
|
|
cache_grab_lock();
|
|
cache_lock();
|
|
|
|
Please refer linux-2.6.x/Documentation/blackfin/cache-lock.txt for how to
|
|
lock the cache.
|
|
|
|
Locking the cache is optional feature.
|
|
|
|
- Miscellaneous cache functions.
|
|
|
|
flush_cache_all();
|
|
flush_cache_mm();
|
|
invalidate_dcache_range();
|
|
flush_dcache_range();
|
|
flush_dcache_page();
|
|
flush_cache_range();
|
|
flush_cache_page();
|
|
invalidate_dcache_range();
|
|
flush_page_to_ram();
|
|
|