diff options
Diffstat (limited to 'sys/arch/hppa/stand/libsa/cache_c.c')
| -rw-r--r-- | sys/arch/hppa/stand/libsa/cache_c.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/sys/arch/hppa/stand/libsa/cache_c.c b/sys/arch/hppa/stand/libsa/cache_c.c new file mode 100644 index 00000000000..8867755af21 --- /dev/null +++ b/sys/arch/hppa/stand/libsa/cache_c.c @@ -0,0 +1,128 @@ +/* $OpenBSD: cache_c.c,v 1.1 1998/06/23 18:46:41 mickey Exp $ */ +/* $NOWHERE: cache_c.c,v 2.1 1998/06/22 19:34:46 mickey Exp $ */ + +/* + * Copyright 1996 1995 by Open Software Foundation, Inc. + * All Rights Reserved + * + * Permission to use, copy, modify, and distribute this software and + * its documentation for any purpose and without fee is hereby granted, + * provided that the above copyright notice appears in all copies and + * that both the copyright notice and this permission notice appear in + * supporting documentation. + * + * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, + * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION + * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + */ +/* + * pmk1.1 + */ +/* + * (c) Copyright 1988 HEWLETT-PACKARD COMPANY + * + * To anyone who acknowledges that this file is provided "AS IS" + * without any express or implied warranty: + * permission to use, copy, modify, and distribute this file + * for any purpose is hereby granted without fee, provided that + * the above copyright notice and this notice appears in all + * copies, and that the name of Hewlett-Packard Company not be + * used in advertising or publicity pertaining to distribution + * of the software without specific, written prior permission. + * Hewlett-Packard Company makes no representations about the + * suitability of this software for any purpose. + */ +/* + * HISTORY + * $Log: cache_c.c,v $ + * Revision 1.1 1998/06/23 18:46:41 mickey + * Initial revision + * + * Revision 2.1 1998/06/22 19:34:46 mickey + * add cache manipulating routines + * + * Revision 1.1.2.1 1996/08/19 07:46:48 bruel + * First revision + * [1996/08/02 09:17:19 bruel] + * + * Revision 1.1.1.2 1996/08/02 09:17:19 bruel + * First revision + * + * Revision 1.1.2.2 91/11/20 16:21:21 sharpe + * Initial version from DSEE + * [91/11/20 16:08:06 sharpe] + * + */ + +/* + * Stolen - Lock, stock, and barrel from tmm's pmap* . + */ + +#include "libsa.h" +#include <machine/pdc.h> + +void +fall(c_base, c_count, c_loop, c_stride, rot) + int c_base, c_count, c_loop, c_stride; + void (*rot)(); +{ + int addr, count, loop; /* Internal vars */ + + addr = c_base; + for (count = 0; count < c_count; count++) { + for (loop = 0; loop < c_loop; loop++) { + (*rot)(0, addr); + } + addr += c_stride; + } + +} + +/* + * fcacheall - Flush all caches. + * + * This routine is just a wrapper around the real cache flush routine. + * + * Parameters: + * None. + * + * Returns: + * Hopefully. + */ +extern int (*pdc)(); +struct pdc_cache pdc_cacheinfo __attribute__ ((aligned(8))); + +void +fcacheall() +{ + extern int fice(); + extern int fdce(); + int err; + + err = (*pdc)(PDC_CACHE, PDC_CACHE_DFLT, &pdc_cacheinfo); + if (err) { +#ifdef DEBUG + if (debug) + printf("fcacheall: PDC_CACHE failed (%d).\n", err); +#endif + return; + } + + /* + * Flush the instruction, then data cache. + */ + fall(pdc_cacheinfo.ic_base, pdc_cacheinfo.ic_count, pdc_cacheinfo.ic_loop, + pdc_cacheinfo.ic_stride, fice); + sync_caches(); + fall(pdc_cacheinfo.dc_base, pdc_cacheinfo.dc_count, pdc_cacheinfo.dc_loop, + pdc_cacheinfo.dc_stride, fdce); + sync_caches(); +} + |