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Annotation of sys/arch/macppc/stand/cache.c, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: cache.c,v 1.2 2003/10/16 04:30:09 drahn Exp $ */
                      2: #define CACHELINESIZE   32                      /* For now              XXX */
                      3:
                      4: void
                      5: syncicache(void *from, int len)
                      6: {
                      7:        int l = len;
                      8:        void *p = from;
                      9:
                     10:        do {
                     11:                asm volatile ("dcbf %1,%0" :: "r"(p), "r"(0));
                     12:                p += CACHELINESIZE;
                     13:        } while ((l -= CACHELINESIZE) > 0);
                     14:        asm volatile ("sync");
                     15:        do {
                     16:                asm volatile ("icbi %1,%0" :: "r"(from), "r"(0));
                     17:                from += CACHELINESIZE;
                     18:        } while ((len -= CACHELINESIZE) > 0);
                     19:        asm volatile ("isync");
                     20: }