[linux-2.6-block.git] / Documentation / blackfin / cachefeatures.txt

/*
 * 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();
Commit	Line	Data
1394f032 BW	1	/*
	2	* File: Documentation/blackfin/cachefeatures.txt
	3	* Based on:
	4	* Author:
	5	*
	6	* Created:
	7	* Description: This file contains the simple DMA Implementation for Blackfin
	8	*
	9	* Rev: $Id: cachefeatures.txt 2384 2006-11-01 04:12:43Z magicyang $
	10	*
	11	* Modified:
	12	* Copyright 2004-2006 Analog Devices Inc.
	13	*
	14	* Bugs: Enter bugs at http://blackfin.uclinux.org/
	15	*
	16	*/
	17
	18	- Instruction and Data cache initialization.
	19	icache_init();
	20	dcache_init();
	21
	22	- Instruction and Data cache Invalidation Routines, when flushing the
	23	same is not required.
	24	_icache_invalidate();
	25	_dcache_invalidate();
	26
	27	Also, for invalidating the entire instruction and data cache, the below
	28	routines are provided (another method for invalidation, refer page no 267 and 287 of
	29	ADSP-BF533 Hardware Reference manual)
	30
	31	invalidate_entire_dcache();
	32	invalidate_entire_icache();
	33
	34	-External Flushing of Instruction and data cache routines.
	35
	36	flush_instruction_cache();
	37	flush_data_cache();
	38
	39	- Internal Flushing of Instruction and Data Cache.
	40
	41	icplb_flush();
	42	dcplb_flush();
	43
	44	- Locking the cache.
	45
	46	cache_grab_lock();
	47	cache_lock();
	48
	49	Please refer linux-2.6.x/Documentation/blackfin/cache-lock.txt for how to
	50	lock the cache.
	51
	52	Locking the cache is optional feature.
	53
	54	- Miscellaneous cache functions.
	55
	56	flush_cache_all();
	57	flush_cache_mm();
	58	invalidate_dcache_range();
	59	flush_dcache_range();
	60	flush_dcache_page();
	61	flush_cache_range();
	62	flush_cache_page();
	63	invalidate_dcache_range();
	64	flush_page_to_ram();
65