1214571Sdim/* $NetBSD: cpu_counter.h,v 1.1 2006/09/20 13:33:04 kochi Exp $ */ 2214571Sdim 3214571Sdim/*- 4214571Sdim * Copyright (c) 2006 The NetBSD Foundation, Inc. 5214571Sdim * All rights reserved. 6214571Sdim * 7214571Sdim * This code is derived from software contributed to The NetBSD Foundation 8214571Sdim * by Takayoshi Kochi. 9214571Sdim * 10214571Sdim * Redistribution and use in source and binary forms, with or without 11214571Sdim * modification, are permitted provided that the following conditions 12214571Sdim * are met: 13214571Sdim * 1. Redistributions of source code must retain the above copyright 14214571Sdim * notice, this list of conditions and the following disclaimer. 15214571Sdim * 2. Redistributions in binary form must reproduce the above copyright 16214571Sdim * notice, this list of conditions and the following disclaimer in the 17214571Sdim * documentation and/or other materials provided with the distribution. 18214571Sdim * 19214571Sdim * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20214571Sdim * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21214571Sdim * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22214571Sdim * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23214571Sdim * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24214571Sdim * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25214571Sdim * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26214571Sdim * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27214571Sdim * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28214571Sdim * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29214571Sdim * POSSIBILITY OF SUCH DAMAGE. 30214571Sdim */ 31214571Sdim 32214571Sdim#ifndef _IA64_CPU_COUNTER_H_ 33214571Sdim#define _IA64_CPU_COUNTER_H_ 34214571Sdim 35214571Sdim/* 36214571Sdim * Machine-specific support for CPU counter. 37214571Sdim */ 38214571Sdim 39214571Sdim#ifdef _KERNEL 40214571Sdim 41214571Sdim#include <machine/ia64_cpu.h> 42214571Sdim 43214571Sdimstatic __inline int 44214571Sdimcpu_hascounter(void) 45214571Sdim{ 46214571Sdim return 1; 47214571Sdim} 48214571Sdim 49214571Sdimstatic __inline uint64_t 50214571Sdimcpu_counter(void) 51214571Sdim{ 52214571Sdim return ia64_get_itc(); 53214571Sdim} 54214571Sdim 55214571Sdimstatic __inline uint32_t 56214571Sdimcpu_counter32(void) 57214571Sdim{ 58214571Sdim return (ia64_get_itc() & 0xffffffffUL); 59214571Sdim} 60214571Sdim 61214571Sdimstatic __inline uint64_t 62214571Sdimcpu_frequency(struct cpu_info *ci) 63214571Sdim{ 64214571Sdim extern uint64_t itc_frequency; 65214571Sdim 66214571Sdim return itc_frequency; 67214571Sdim} 68214571Sdim 69214571Sdim#endif /* _KERNEL */ 70214571Sdim 71214571Sdim#endif /* !_IA64_CPU_COUNTER_H_ */ 72214571Sdim