cpu_counter.h revision 1.1.2.2
1 1.1.2.2 yamt /* $NetBSD: cpu_counter.h,v 1.1.2.2 2006/10/22 06:04:49 yamt Exp $ */ 2 1.1.2.2 yamt 3 1.1.2.2 yamt /*- 4 1.1.2.2 yamt * Copyright (c) 2006 The NetBSD Foundation, Inc. 5 1.1.2.2 yamt * All rights reserved. 6 1.1.2.2 yamt * 7 1.1.2.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 yamt * by Takayoshi Kochi. 9 1.1.2.2 yamt * 10 1.1.2.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.1.2.2 yamt * modification, are permitted provided that the following conditions 12 1.1.2.2 yamt * are met: 13 1.1.2.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.1.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.2.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.1.2.2 yamt * documentation and/or other materials provided with the distribution. 18 1.1.2.2 yamt * 3. All advertising materials mentioning features or use of this software 19 1.1.2.2 yamt * must display the following acknowledgement: 20 1.1.2.2 yamt * This product includes software developed by the NetBSD 21 1.1.2.2 yamt * Foundation, Inc. and its contributors. 22 1.1.2.2 yamt * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.2.2 yamt * contributors may be used to endorse or promote products derived 24 1.1.2.2 yamt * from this software without specific prior written permission. 25 1.1.2.2 yamt * 26 1.1.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.2.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.2.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.2.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.2.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.2.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.2.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.2.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.2.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.2.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.2.2 yamt * POSSIBILITY OF SUCH DAMAGE. 37 1.1.2.2 yamt */ 38 1.1.2.2 yamt 39 1.1.2.2 yamt #ifndef _IA64_CPU_COUNTER_H_ 40 1.1.2.2 yamt #define _IA64_CPU_COUNTER_H_ 41 1.1.2.2 yamt 42 1.1.2.2 yamt /* 43 1.1.2.2 yamt * Machine-specific support for CPU counter. 44 1.1.2.2 yamt */ 45 1.1.2.2 yamt 46 1.1.2.2 yamt #ifdef _KERNEL 47 1.1.2.2 yamt 48 1.1.2.2 yamt #include <machine/ia64_cpu.h> 49 1.1.2.2 yamt 50 1.1.2.2 yamt static __inline int 51 1.1.2.2 yamt cpu_hascounter(void) 52 1.1.2.2 yamt { 53 1.1.2.2 yamt return 1; 54 1.1.2.2 yamt } 55 1.1.2.2 yamt 56 1.1.2.2 yamt static __inline uint64_t 57 1.1.2.2 yamt cpu_counter(void) 58 1.1.2.2 yamt { 59 1.1.2.2 yamt return ia64_get_itc(); 60 1.1.2.2 yamt } 61 1.1.2.2 yamt 62 1.1.2.2 yamt static __inline uint32_t 63 1.1.2.2 yamt cpu_counter32(void) 64 1.1.2.2 yamt { 65 1.1.2.2 yamt return (ia64_get_itc() & 0xffffffffUL); 66 1.1.2.2 yamt } 67 1.1.2.2 yamt 68 1.1.2.2 yamt static __inline uint64_t 69 1.1.2.2 yamt cpu_frequency(struct cpu_info *ci) 70 1.1.2.2 yamt { 71 1.1.2.2 yamt extern uint64_t itc_frequency; 72 1.1.2.2 yamt 73 1.1.2.2 yamt return itc_frequency; 74 1.1.2.2 yamt } 75 1.1.2.2 yamt 76 1.1.2.2 yamt #endif /* _KERNEL */ 77 1.1.2.2 yamt 78 1.1.2.2 yamt #endif /* !_IA64_CPU_COUNTER_H_ */ 79
Indexes created Fri Oct 17 00:09:41 GMT 2025