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File: [local] / sys / arch / macppc / stand / cache.c (download)

Revision 1.1, Tue Mar 4 16:07:17 2008 UTC (16 years, 2 months ago) by nbrk
Branch point for: MAIN 

Initial revision

/*	$OpenBSD: cache.c,v 1.2 2003/10/16 04:30:09 drahn Exp $	*/
#define CACHELINESIZE   32                      /* For now              XXX */

void
syncicache(void *from, int len)
{
	int l = len;
	void *p = from;

	do {
		asm volatile ("dcbf %1,%0" :: "r"(p), "r"(0));
		p += CACHELINESIZE;
	} while ((l -= CACHELINESIZE) > 0);
	asm volatile ("sync");
	do {
		asm volatile ("icbi %1,%0" :: "r"(from), "r"(0));
		from += CACHELINESIZE;
	} while ((len -= CACHELINESIZE) > 0);
	asm volatile ("isync");
}