1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21/* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26/* 27 * Routines for manipulating the UltraSPARC performance 28 * counter registers (%pcr and %pic) 29 */ 30 31#include <sys/asm_linkage.h> 32 33#if defined(lint) || defined(__lint) 34 35#include <sys/cpc_ultra.h> 36 37/*ARGSUSED*/ 38void 39ultra_setpcr(uint64_t pcr) 40{} 41 42/*ARGSUSED*/ 43uint64_t 44ultra_getpcr(void) 45{ return (0); } 46 47/*ARGSUSED*/ 48void 49ultra_setpic(uint64_t pic) 50{} 51 52uint64_t 53ultra_getpic(void) 54{ return (0); } 55 56#else /* lint || __lint */ 57 58 ENTRY(ultra_setpcr) 59 retl 60 wr %o0, %pcr 61 SET_SIZE(ultra_setpcr) 62 63 ENTRY(ultra_getpcr) 64 retl 65 rd %pcr, %o0 66 SET_SIZE(ultra_getpcr) 67 68 ENTRY(ultra_setpic) 69#if defined(BB_ERRATA_1) /* Writes to %pic may fail */ 70 ba 1f 71 nop 72 .align 16 731: wr %o0, %pic 74 rd %pic, %g0 75 retl 76 nop 77#else 78 retl 79 wr %o0, %pic 80#endif /* BB_ERRATA_1 */ 81 SET_SIZE(ultra_setpic) 82 83 ENTRY(ultra_getpic) 84 retl 85 rd %pic, %o0 86 SET_SIZE(ultra_getpic) 87 88#endif /* lint || __lint */ 89