Kernel-2.6.32-573.12.1.el6_cachefeatures

/*

• 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();