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1 | /* | |
2 | * Copyright (c) 2003-2006 Apple Computer, Inc. All rights reserved. | |
3 | * | |
4 | * @APPLE_LICENSE_HEADER_START@ | |
5 | * | |
6 | * This file contains Original Code and/or Modifications of Original Code | |
7 | * as defined in and that are subject to the Apple Public Source License | |
8 | * Version 2.0 (the 'License'). You may not use this file except in | |
9 | * compliance with the License. Please obtain a copy of the License at | |
10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
11 | * file. | |
12 | * | |
13 | * The Original Code and all software distributed under the License are | |
14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
18 | * Please see the License for the specific language governing rights and | |
19 | * limitations under the License. | |
20 | * | |
21 | * @APPLE_LICENSE_HEADER_END@ | |
22 | */ | |
23 | /* cache control */ | |
24 | ||
25 | #include <stdlib.h> | |
26 | #include <stddef.h> | |
27 | #include <errno.h> | |
28 | #include <sys/types.h> | |
29 | #include <libkern/OSCacheControl.h> | |
30 | ||
31 | ||
32 | int | |
33 | sys_cache_control(int function, void *start, size_t len) | |
34 | { | |
35 | int status = 0; | |
36 | ||
37 | switch( function ) { | |
38 | ||
39 | case kCacheFunctionPrepareForExecution: | |
40 | sys_icache_invalidate(start, len); | |
41 | break; | |
42 | ||
43 | case kCacheFunctionFlushDcache: | |
44 | sys_dcache_flush(start, len); | |
45 | break; | |
46 | ||
47 | default: | |
48 | status = ENOTSUP; | |
49 | } | |
50 | ||
51 | return status; | |
52 | } |