diff options
Diffstat (limited to 'lib/libc/powerpc/gen/syncicache.c')
| -rw-r--r-- | lib/libc/powerpc/gen/syncicache.c | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/lib/libc/powerpc/gen/syncicache.c b/lib/libc/powerpc/gen/syncicache.c deleted file mode 100644 index 434dcec..0000000 --- a/lib/libc/powerpc/gen/syncicache.c +++ /dev/null @@ -1,103 +0,0 @@ -/*- - * Copyright (C) 1995-1997, 1999 Wolfgang Solfrank. - * Copyright (C) 1995-1997, 1999 TooLs GmbH. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by TooLs GmbH. - * 4. The name of TooLs GmbH may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * $NetBSD: syncicache.c,v 1.2 1999/05/05 12:36:40 tsubai Exp $ - */ - -#ifndef lint -static const char rcsid[] = - "$FreeBSD$"; -#endif /* not lint */ - -#include <sys/param.h> -#if defined(_KERNEL) || defined(_STANDALONE) -#include <sys/time.h> -#include <sys/proc.h> -#include <vm/vm.h> -#endif -#include <sys/sysctl.h> - -#include <machine/cpu.h> -#include <machine/md_var.h> - -#ifdef _STANDALONE -int cacheline_size = 32; -#endif - -#if !defined(_KERNEL) && !defined(_STANDALONE) -#include <stdlib.h> - -int cacheline_size = 0; - -static void getcachelinesize(void); - -static void -getcachelinesize() -{ - static int cachemib[] = { CTL_MACHDEP, CPU_CACHELINE }; - int clen; - - clen = sizeof(cacheline_size); - - if (sysctl(cachemib, sizeof(cachemib) / sizeof(cachemib[0]), - &cacheline_size, &clen, NULL, 0) < 0 || !cacheline_size) { - abort(); - } -} -#endif - -void -__syncicache(void *from, int len) -{ - int l, off; - char *p; - -#if !defined(_KERNEL) && !defined(_STANDALONE) - if (!cacheline_size) - getcachelinesize(); -#endif - - off = (u_int)from & (cacheline_size - 1); - l = len += off; - p = (char *)from - off; - - do { - __asm __volatile ("dcbst 0,%0" :: "r"(p)); - p += cacheline_size; - } while ((l -= cacheline_size) > 0); - __asm __volatile ("sync"); - p = (char *)from - off; - do { - __asm __volatile ("icbi 0,%0" :: "r"(p)); - p += cacheline_size; - } while ((len -= cacheline_size) > 0); - __asm __volatile ("sync; isync"); -} - |
