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/*
* RTEMS Cache Aligned Malloc
*
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <stdlib.h>
#include <rtems.h>
#include <cache_.h>
#include <rtems/rtems/cache.h>
/*
* rtems_cache_aligned_malloc
*
* DESCRIPTION:
*
* This function is used to allocate storage that spans an
* integral number of cache blocks.
*/
void *rtems_cache_aligned_malloc (
size_t nbytes
)
{
/*
* Arrange to have the user storage start on the first cache
* block beyond the header.
*/
#if defined(CPU_DATA_CACHE_ALIGNMENT)
return (void *) ((((unsigned long)
malloc( nbytes + CPU_DATA_CACHE_ALIGNMENT - 1 ))
+ CPU_DATA_CACHE_ALIGNMENT - 1 ) &(~(CPU_DATA_CACHE_ALIGNMENT - 1)) );
#else
return malloc( nbytes );
#endif
}
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