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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-02-28 23:55:20 -0800 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-02-28 23:55:20 -0800 |
commit | 35858adbfca13678af99fb31618ef4428d6dedb0 (patch) | |
tree | 3336feaa61324486945816cb52c347733e7c0821 /Documentation/blackfin/cache-lock.txt | |
parent | 197d4db752e67160d79fed09968c2140376a80a3 (diff) | |
parent | 4b70858ba8d4537daf782defebe5f2ff80ccef2b (diff) |
Merge branch 'next' into for-linus
Diffstat (limited to 'Documentation/blackfin/cache-lock.txt')
-rw-r--r-- | Documentation/blackfin/cache-lock.txt | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/Documentation/blackfin/cache-lock.txt b/Documentation/blackfin/cache-lock.txt deleted file mode 100644 index 88ba1e6c31c3..000000000000 --- 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. |