/* $NetBSD: cpu_counter.h,v 1.1 2006/09/20 13:33:04 kochi Exp $ */ | |
/*- | |
* Copyright (c) 2006 The NetBSD Foundation, Inc. | |
* All rights reserved. | |
* | |
* This code is derived from software contributed to The NetBSD Foundation | |
* by Takayoshi Kochi. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* 3. All advertising materials mentioning features or use of this software | |
* must display the following acknowledgement: | |
* This product includes software developed by the NetBSD | |
* Foundation, Inc. and its contributors. | |
* 4. Neither the name of The NetBSD Foundation nor the names of its | |
* contributors may be used to endorse or promote products derived | |
* from this software without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS | |
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS | |
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
* POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#ifndef _IA64_CPU_COUNTER_H_ | |
#define _IA64_CPU_COUNTER_H_ | |
/* | |
* Machine-specific support for CPU counter. | |
*/ | |
#ifdef _KERNEL | |
#include <machine/ia64_cpu.h> | |
static __inline int | |
cpu_hascounter(void) | |
{ | |
return 1; | |
} | |
static __inline uint64_t | |
cpu_counter(void) | |
{ | |
return ia64_get_itc(); | |
} | |
static __inline uint32_t | |
cpu_counter32(void) | |
{ | |
return (ia64_get_itc() & 0xffffffffUL); | |
} | |
static __inline uint64_t | |
cpu_frequency(struct cpu_info *ci) | |
{ | |
extern uint64_t itc_frequency; | |
return itc_frequency; | |
} | |
#endif /* _KERNEL */ | |
#endif /* !_IA64_CPU_COUNTER_H_ */ |