diff options
Diffstat (limited to 'sys/arch/mvmeppc/stand/libsa/cache.c')
| -rw-r--r-- | sys/arch/mvmeppc/stand/libsa/cache.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/sys/arch/mvmeppc/stand/libsa/cache.c b/sys/arch/mvmeppc/stand/libsa/cache.c new file mode 100644 index 00000000000..7c6f8b4de97 --- /dev/null +++ b/sys/arch/mvmeppc/stand/libsa/cache.c @@ -0,0 +1,23 @@ +/* $OpenBSD: cache.c,v 1.1 2001/06/26 21:58:07 smurph Exp $ */ +#define CACHELINESIZE 32 /* For now XXX */ + +void +syncicache(from, len) + 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"); +} + |