cpc_hwreg.s revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1999-2001,2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Routines for manipulating the UltraSPARC performance
* counter registers (%pcr and %pic)
*/
#include <sys/asm_linkage.h>
#include <sys/cpc_ultra.h>
/*ARGSUSED*/
void
{}
/*ARGSUSED*/
ultra_getpcr(void)
{ return (0); }
/*ARGSUSED*/
void
{}
ultra_getpic(void)
{ return (0); }
ultra_gettick(void)
{ return (0); }
#else /* lint || __lint */
#if defined(BB_ERRATA_1) /* Writes to %pic may fail */
ba 1f
.align 16
#else
#endif /* BB_ERRATA_1 */
/*
* This isn't the routine you're looking for.
*
* The routine simply returns the value of %tick on the *current* processor.
* Most of the time, gettick() [which in turn maps to %stick on platforms
* that have different CPU %tick rates] is what you want.
*/
#endif /* lint || __lint */