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Source at commit 1270 created 12 years 11 months ago. By meklort, Add arm headers. update makefiles | |
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1 | /*␊ |
2 | * Copyright (c) 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 | ␊ |
24 | #ifndef _OS_CACHE_CONTROL_H_␊ |
25 | #define _OS_CACHE_CONTROL_H_␊ |
26 | ␊ |
27 | #include <stddef.h>␊ |
28 | #include <sys/cdefs.h>␊ |
29 | #include <stdint.h>␊ |
30 | ␊ |
31 | __BEGIN_DECLS␊ |
32 | ␊ |
33 | ␊ |
34 | /* Functions performed by sys_cache_control(): */␊ |
35 | ␊ |
36 | /* Prepare memory for execution. This should be called␊ |
37 | * after writing machine instructions to memory, before␊ |
38 | * executing them. It syncs the dcache and icache.␊ |
39 | * On IA32 processors this function is a NOP, because␊ |
40 | * no synchronization is required.␊ |
41 | */␊ |
42 | #define␉kCacheFunctionPrepareForExecution␉1␊ |
43 | ␊ |
44 | /* Flush data cache(s). This ensures that cached data ␊ |
45 | * makes it all the way out to DRAM, and then removes␊ |
46 | * copies of the data from all processor caches.␊ |
47 | * It can be useful when dealing with cache incoherent␊ |
48 | * devices or DMA.␊ |
49 | */␊ |
50 | #define␉kCacheFunctionFlushDcache␉2␊ |
51 | ␊ |
52 | ␊ |
53 | /* perform one of the above cache functions: */␊ |
54 | int␉sys_cache_control( int function, void *start, size_t len);␊ |
55 | ␊ |
56 | /* equivalent to sys_cache_control(kCacheFunctionPrepareForExecution): */␊ |
57 | void␉sys_icache_invalidate( void *start, size_t len);␊ |
58 | ␊ |
59 | /* equivalent to sys_cache_control(kCacheFunctionFlushDcache): */␊ |
60 | void␉sys_dcache_flush( void *start, size_t len);␊ |
61 | ␊ |
62 | ␊ |
63 | __END_DECLS␊ |
64 | ␊ |
65 | #endif /* _OS_CACHE_CONTROL_H_ */␊ |
66 |