1 /* $NetBSD: cpu_counter.h,v 1.8 2009/05/16 19:15:34 nakayama Exp $ */ 2 3 /*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Martin Husemann. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _SPARC64_CPU_COUNTER_H_ 33 #define _SPARC64_CPU_COUNTER_H_ 34 35 /* 36 * Machine-specific support for CPU counter. 37 */ 38 39 #ifdef _KERNEL 40 41 #include <machine/cpu.h> 42 43 #define cpu_hascounter() (1) 44 45 static __inline uint64_t 46 cpu_counter(void) 47 { 48 49 return (gettick()); 50 } 51 52 static __inline uint32_t 53 cpu_counter32(void) 54 { 55 56 return (gettick() & 0xffffffffUL); 57 } 58 59 static __inline uint64_t 60 cpu_frequency(struct cpu_info *ci) 61 { 62 63 return (ci->ci_cpu_clockrate[0]); 64 } 65 66 #endif /* _KERNEL */ 67 68 #endif /* !_SPARC64_CPU_COUNTER_H_ */ 69