diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2002-06-08 15:45:33 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2002-06-08 15:45:33 +0000 |
| commit | 21bce0b3873e59c1f9e8e097e28aa4b985e339c3 (patch) | |
| tree | 0af6292bf552c6bd5409934f3ae98c0d76fde45e /sys/arch/powerpc | |
| parent | c724abb001fe7546a8883a4bf611667176e9e64b (diff) | |
Factorize common parts (cache-related stuff).
ok drahn@
Diffstat (limited to 'sys/arch/powerpc')
| -rw-r--r-- | sys/arch/powerpc/include/cpu.h | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/sys/arch/powerpc/include/cpu.h b/sys/arch/powerpc/include/cpu.h index 5fddfb0fc62..826cb409e2e 100644 --- a/sys/arch/powerpc/include/cpu.h +++ b/sys/arch/powerpc/include/cpu.h @@ -1,4 +1,4 @@ -/* $OpenBSD: cpu.h,v 1.10 2002/06/07 21:33:43 nordin Exp $ */ +/* $OpenBSD: cpu.h,v 1.11 2002/06/08 15:45:32 miod Exp $ */ /* $NetBSD: cpu.h,v 1.1 1996/09/30 16:34:21 ws Exp $ */ /* @@ -57,4 +57,47 @@ extern volatile int astpending; extern char *bootpath; +#ifndef CACHELINESIZE +#define CACHELINESIZE 32 /* For now XXX */ +#endif + +static __inline void +syncicache(void *from, int len) +{ + int l; + char *p = from; + + len = len + (((u_int32_t) from) & (CACHELINESIZE - 1)); + l = len; + + do { + __asm__ __volatile__ ("dcbst 0,%0" :: "r"(p)); + p += CACHELINESIZE; + } while ((l -= CACHELINESIZE) > 0); + __asm__ __volatile__ ("sync"); + p = from; + l = len; + do { + __asm__ __volatile__ ("icbi 0,%0" :: "r"(p)); + p += CACHELINESIZE; + } while ((l -= CACHELINESIZE) > 0); + __asm__ __volatile__ ("isync"); +} + +static __inline void +invdcache(void *from, int len) +{ + int l; + char *p = from; + + len = len + (((u_int32_t) from) & (CACHELINESIZE - 1)); + l = len; + + do { + __asm__ __volatile__ ("dcbi 0,%0" :: "r"(p)); + p += CACHELINESIZE; + } while ((l -= CACHELINESIZE) > 0); + __asm__ __volatile__ ("sync"); +} + #endif /* _POWERPC_CPU_H_ */ |