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/* cache flushing for the HP-PA architecture
Copyright (C) 1995,1996,1997,1998,2003,2007 Free Software Foundation, Inc.
This file is part of Gforth.
Gforth is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation, either version 3
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see http://www.gnu.org/licenses/.
*/
#include <stddef.h>
void cacheflush(void * address, size_t size, size_t linewidth)
{
void *p=(void *)((size_t)address & (-linewidth));
for(; p<address+size;)
asm volatile("fdc (%0)\n\t"
"sync\n\t"
"fic,m %1(%0)\n\t"
"sync" : "+r"(p) : "r"(linewidth) : "memory" );
}
#if 0
void cacheflush(void * address, int size, int linewidth)
{
int i;
address=(void *)((int)address & (-linewidth));
for(i=1-linewidth; i<size; i+=linewidth)
asm volatile("fdc (%0)\n\t"
"sync\n\t"
"fic,m %1(%0)\n\t"
"sync" : : "r" (address), "r" (linewidth) : "memory" );
}
#endif
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