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 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26#ifndef _ASM_CLOCK_H 27#define _ASM_CLOCK_H 28 29#pragma ident "%Z%%M% %I% %E% SMI" 30 31#include <sys/types.h> 32#include <sys/time.h> 33 34#ifdef __cplusplus 35extern "C" { 36#endif 37 38#if !defined(__lint) && defined(__GNUC__) 39 40#include <sys/machlock.h> 41 42extern __inline__ void unlock_hres_lock(void) 43{ 44 __asm__ __volatile__( 45 "lock; incl %0" 46 : /* no output */ 47 : "m" (hres_lock) 48 : "cc"); 49} 50 51#if defined(__xpv) 52 53extern __inline__ hrtime_t __rdtsc_insn(void) 54{ 55#if defined(__amd64) 56 uint32_t lobits, hibits; 57 58 __asm__ __volatile__( 59 "rdtsc" 60 : "=a" (lobits), "=d" (hibits)); 61 return (lobits | ((hrtime_t)hibits << 32)); 62#elif defined(__i386) 63 hrtime_t __value; 64 65 __asm__ __volatile__( 66 "rdtsc" 67 : "=A" (__value)); 68 return (__value); 69#else 70#error "port me" 71#endif 72} 73 74#endif /* __xpv */ 75 76#endif /* !__lint && __GNUC__ */ 77 78#ifdef __cplusplus 79} 80#endif 81 82#endif /* _ASM_CLOCK_H */ 83