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Cider Isn't Darwin Emulation, Really
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667/* * Copyright (c) 2006 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */
#ifndef _OS_CACHE_CONTROL_H_#define _OS_CACHE_CONTROL_H_
#include <stddef.h>#include <sys/cdefs.h>#include <stdint.h>#include <Availability.h>
__BEGIN_DECLS
/* Functions performed by sys_cache_control(): */
/* Prepare memory for execution. This should be called * after writing machine instructions to memory, before * executing them. It syncs the dcache and icache. * On IA32 processors this function is a NOP, because * no synchronization is required. */#define kCacheFunctionPrepareForExecution 1
/* Flush data cache(s). This ensures that cached data * makes it all the way out to DRAM, and then removes * copies of the data from all processor caches. * It can be useful when dealing with cache incoherent * devices or DMA. */#define kCacheFunctionFlushDcache 2
/* perform one of the above cache functions: */int sys_cache_control( int function, void *start, size_t len); /* equivalent to sys_cache_control(kCacheFunctionPrepareForExecution): */void sys_icache_invalidate( void *start, size_t len);
/* equivalent to sys_cache_control(kCacheFunctionFlushDcache): */void sys_dcache_flush( void *start, size_t len) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
__END_DECLS
#endif /* _OS_CACHE_CONTROL_H_ */