1*1cd76c75SBen Gras /* $NetBSD: cpu_counter.h,v 1.5 2011/02/02 12:26:42 bouyer Exp $ */ 2*1cd76c75SBen Gras 3*1cd76c75SBen Gras /*- 4*1cd76c75SBen Gras * Copyright (c) 2000, 2008 The NetBSD Foundation, Inc. 5*1cd76c75SBen Gras * All rights reserved. 6*1cd76c75SBen Gras * 7*1cd76c75SBen Gras * This code is derived from software contributed to The NetBSD Foundation 8*1cd76c75SBen Gras * by Bill Sommerfeld. 9*1cd76c75SBen Gras * 10*1cd76c75SBen Gras * Redistribution and use in source and binary forms, with or without 11*1cd76c75SBen Gras * modification, are permitted provided that the following conditions 12*1cd76c75SBen Gras * are met: 13*1cd76c75SBen Gras * 1. Redistributions of source code must retain the above copyright 14*1cd76c75SBen Gras * notice, this list of conditions and the following disclaimer. 15*1cd76c75SBen Gras * 2. Redistributions in binary form must reproduce the above copyright 16*1cd76c75SBen Gras * notice, this list of conditions and the following disclaimer in the 17*1cd76c75SBen Gras * documentation and/or other materials provided with the distribution. 18*1cd76c75SBen Gras * 19*1cd76c75SBen Gras * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20*1cd76c75SBen Gras * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21*1cd76c75SBen Gras * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22*1cd76c75SBen Gras * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23*1cd76c75SBen Gras * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24*1cd76c75SBen Gras * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25*1cd76c75SBen Gras * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26*1cd76c75SBen Gras * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27*1cd76c75SBen Gras * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28*1cd76c75SBen Gras * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29*1cd76c75SBen Gras * POSSIBILITY OF SUCH DAMAGE. 30*1cd76c75SBen Gras */ 31*1cd76c75SBen Gras 32*1cd76c75SBen Gras #ifndef _X86_CPU_COUNTER_H_ 33*1cd76c75SBen Gras #define _X86_CPU_COUNTER_H_ 34*1cd76c75SBen Gras 35*1cd76c75SBen Gras #ifdef _KERNEL 36*1cd76c75SBen Gras 37*1cd76c75SBen Gras uint64_t cpu_counter(void); 38*1cd76c75SBen Gras uint64_t cpu_counter_serializing(void); 39*1cd76c75SBen Gras uint32_t cpu_counter32(void); 40*1cd76c75SBen Gras uint64_t cpu_frequency(struct cpu_info *); 41*1cd76c75SBen Gras int cpu_hascounter(void); 42*1cd76c75SBen Gras 43*1cd76c75SBen Gras #endif /* _KERNEL */ 44*1cd76c75SBen Gras 45*1cd76c75SBen Gras #endif /* !_X86_CPU_COUNTER_H_ */ 46