1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _ASM_CLOCK_H 28*0Sstevel@tonic-gate #define _ASM_CLOCK_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #include <sys/types.h> 33*0Sstevel@tonic-gate #include <sys/time.h> 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #ifdef __cplusplus 36*0Sstevel@tonic-gate extern "C" { 37*0Sstevel@tonic-gate #endif 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #if !defined(__lint) && defined(__GNUC__) 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate #include <sys/machlock.h> 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate extern __inline__ void unlock_hres_lock(void) 44*0Sstevel@tonic-gate { 45*0Sstevel@tonic-gate __asm__ __volatile__( 46*0Sstevel@tonic-gate "lock; incl %0" 47*0Sstevel@tonic-gate : /* no output */ 48*0Sstevel@tonic-gate : "m" (hres_lock) 49*0Sstevel@tonic-gate : "cc"); 50*0Sstevel@tonic-gate } 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate extern __inline__ hrtime_t tsc_read(void) 53*0Sstevel@tonic-gate { 54*0Sstevel@tonic-gate #if defined(__amd64) 55*0Sstevel@tonic-gate uint32_t lobits, hibits; 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate __asm__ __volatile__( 58*0Sstevel@tonic-gate "rdtsc" 59*0Sstevel@tonic-gate : "=a" (lobits), "=d" (hibits)); 60*0Sstevel@tonic-gate return (lobits | ((hrtime_t)hibits << 32)); 61*0Sstevel@tonic-gate #elif defined(__i386) 62*0Sstevel@tonic-gate hrtime_t __value; 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate __asm__ __volatile__( 65*0Sstevel@tonic-gate "rdtsc" 66*0Sstevel@tonic-gate : "=A" (__value)); 67*0Sstevel@tonic-gate return (__value); 68*0Sstevel@tonic-gate #else 69*0Sstevel@tonic-gate #error "port me" 70*0Sstevel@tonic-gate #endif 71*0Sstevel@tonic-gate } 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate #endif /* !__lint && __GNUC__ */ 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate #ifdef __cplusplus 76*0Sstevel@tonic-gate } 77*0Sstevel@tonic-gate #endif 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate #endif /* _ASM_CLOCK_H */ 80