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