From aaa225e0aa96691964a5f0518c3c16b954d400cb Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Wed, 14 Oct 2009 13:43:53 +0000 Subject: [PATCH] Blackfin: punt cache lock documentation The cache lock code was unused and punted, so punt the documentation too. Signed-off-by: Michael Hennerich Signed-off-by: Mike Frysinger --- Documentation/blackfin/00-INDEX | 3 -- Documentation/blackfin/cache-lock.txt | 48 -------------------------------- Documentation/blackfin/cachefeatures.txt | 10 ------- 3 files changed, 61 deletions(-) delete mode 100644 Documentation/blackfin/cache-lock.txt diff --git a/Documentation/blackfin/00-INDEX b/Documentation/blackfin/00-INDEX index d6840a9..c34e124 100644 --- a/Documentation/blackfin/00-INDEX +++ b/Documentation/blackfin/00-INDEX @@ -1,9 +1,6 @@ 00-INDEX - This file -cache-lock.txt - - HOWTO for blackfin cache locking. - cachefeatures.txt - Supported cache features. diff --git a/Documentation/blackfin/cache-lock.txt b/Documentation/blackfin/cache-lock.txt deleted file mode 100644 index 88ba1e6..0000000 --- a/Documentation/blackfin/cache-lock.txt +++ /dev/null @@ -1,48 +0,0 @@ -/* - * File: Documentation/blackfin/cache-lock.txt - * Based on: - * Author: - * - * Created: - * Description: This file contains the simple DMA Implementation for Blackfin - * - * Rev: $Id: cache-lock.txt 2384 2006-11-01 04:12:43Z magicyang $ - * - * Modified: - * Copyright 2004-2006 Analog Devices Inc. - * - * Bugs: Enter bugs at http://blackfin.uclinux.org/ - * - */ - -How to lock your code in cache in uClinux/blackfin --------------------------------------------------- - -There are only a few steps required to lock your code into the cache. -Currently you can lock the code by Way. - -Below are the interface provided for locking the cache. - - -1. cache_grab_lock(int Ways); - -This function grab the lock for locking your code into the cache specified -by Ways. - - -2. cache_lock(int Ways); - -This function should be called after your critical code has been executed. -Once the critical code exits, the code is now loaded into the cache. This -function locks the code into the cache. - - -So, the example sequence will be: - - cache_grab_lock(WAY0_L); /* Grab the lock */ - - critical_code(); /* Execute the code of interest */ - - cache_lock(WAY0_L); /* Lock the cache */ - -Where WAY0_L signifies WAY0 locking. diff --git a/Documentation/blackfin/cachefeatures.txt b/Documentation/blackfin/cachefeatures.txt index 0fbec23..75de51f 100644 --- a/Documentation/blackfin/cachefeatures.txt +++ b/Documentation/blackfin/cachefeatures.txt @@ -41,16 +41,6 @@ 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(); -- 2.7.4