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      1  1.7  msaitoh /*	$NetBSD: cpu_counter.h,v 1.7 2020/06/15 09:09:23 msaitoh Exp $	*/
      2  1.1  tsutsui 
      3  1.1  tsutsui /*-
      4  1.3       ad  * Copyright (c) 2000, 2008 The NetBSD Foundation, Inc.
      5  1.1  tsutsui  * All rights reserved.
      6  1.1  tsutsui  *
      7  1.1  tsutsui  * This code is derived from software contributed to The NetBSD Foundation
      8  1.1  tsutsui  * by Bill Sommerfeld.
      9  1.1  tsutsui  *
     10  1.1  tsutsui  * Redistribution and use in source and binary forms, with or without
     11  1.1  tsutsui  * modification, are permitted provided that the following conditions
     12  1.1  tsutsui  * are met:
     13  1.1  tsutsui  * 1. Redistributions of source code must retain the above copyright
     14  1.1  tsutsui  *    notice, this list of conditions and the following disclaimer.
     15  1.1  tsutsui  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.1  tsutsui  *    notice, this list of conditions and the following disclaimer in the
     17  1.1  tsutsui  *    documentation and/or other materials provided with the distribution.
     18  1.1  tsutsui  *
     19  1.1  tsutsui  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.1  tsutsui  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.1  tsutsui  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.1  tsutsui  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.1  tsutsui  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.1  tsutsui  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.1  tsutsui  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.1  tsutsui  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.1  tsutsui  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.1  tsutsui  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.1  tsutsui  * POSSIBILITY OF SUCH DAMAGE.
     30  1.1  tsutsui  */
     31  1.1  tsutsui 
     32  1.1  tsutsui #ifndef _X86_CPU_COUNTER_H_
     33  1.1  tsutsui #define _X86_CPU_COUNTER_H_
     34  1.1  tsutsui 
     35  1.3       ad #ifdef _KERNEL
     36  1.3       ad 
     37  1.7  msaitoh #include <sys/lwp.h>
     38  1.7  msaitoh 
     39  1.7  msaitoh extern uint64_t	cpu_frequency(struct cpu_info *);
     40  1.7  msaitoh extern int	cpu_hascounter(void);
     41  1.7  msaitoh extern uint64_t	(*cpu_counter)(void);
     42  1.7  msaitoh extern uint32_t	(*cpu_counter32)(void);
     43  1.7  msaitoh 
     44  1.7  msaitoh extern uint64_t	cpu_counter_cpuid(void);
     45  1.7  msaitoh extern uint64_t	cpu_counter_lfence(void);
     46  1.7  msaitoh extern uint64_t	cpu_counter_mfence(void);
     47  1.7  msaitoh extern uint32_t	cpu_counter32_cpuid(void);
     48  1.7  msaitoh extern uint32_t	cpu_counter32_lfence(void);
     49  1.7  msaitoh extern uint32_t	cpu_counter32_mfence(void);
     50  1.3       ad 
     51  1.3       ad #endif	/* _KERNEL */
     52  1.3       ad 
     53  1.1  tsutsui #endif /* !_X86_CPU_COUNTER_H_ */
     54