34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
/*
|
|
* C library support files for the Blackfin processor
|
|
*
|
|
* Copyright (C) 2010 Analog Devices, Inc.
|
|
*
|
|
* The authors hereby grant permission to use, copy, modify, distribute,
|
|
* and license this software and its documentation for any purpose, provided
|
|
* that existing copyright notices are retained in all copies and that this
|
|
* notice is included verbatim in any distributions. No written agreement,
|
|
* license, or royalty fee is required for any of the authorized uses.
|
|
* Modifications to this software may be copyrighted by their authors
|
|
* and need not follow the licensing terms described here, provided that
|
|
* the new terms are clearly indicated on the first page of each file where
|
|
* they apply.
|
|
*/
|
|
|
|
/* This is a callback which gcc itself wants to flush jump tables.
|
|
|
|
Map it into L1 Text because of anomalies 05-00-0312 and 05-00-0419. */
|
|
|
|
__attribute__ ((l1_text))
|
|
void __clear_cache_range (char *beg, char *end)
|
|
{
|
|
char *ptr = beg;
|
|
do {
|
|
__asm__ __volatile__ ("FLUSH [%0++];" : "+a" (ptr) : : "memory");
|
|
} while (ptr <= end);
|
|
ptr = beg;
|
|
__asm__ __volatile__ ("SSYNC;");
|
|
do {
|
|
__asm__ __volatile__ ("IFLUSH [%0++];" : "+a" (ptr) : : "memory");
|
|
} while (ptr <= end);
|
|
}
|