[mirror_edk2.git] / StdLib / Include / Ipf / machine / cpu_counter.h

/*	$NetBSD: cpu_counter.h,v 1.1 2006/09/20 13:33:04 kochi Exp $	*/\r
\r
/*-\r
 * Copyright (c) 2006 The NetBSD Foundation, Inc.\r
 * All rights reserved.\r
 *\r
 * This code is derived from software contributed to The NetBSD Foundation\r
 * by Takayoshi Kochi.\r
 *\r
 * Redistribution and use in source and binary forms, with or without\r
 * modification, are permitted provided that the following conditions\r
 * are met:\r
 * 1. Redistributions of source code must retain the above copyright\r
 *    notice, this list of conditions and the following disclaimer.\r
 * 2. Redistributions in binary form must reproduce the above copyright\r
 *    notice, this list of conditions and the following disclaimer in the\r
 *    documentation and/or other materials provided with the distribution.\r
 * 3. All advertising materials mentioning features or use of this software\r
 *    must display the following acknowledgement:\r
 *        This product includes software developed by the NetBSD\r
 *        Foundation, Inc. and its contributors.\r
 * 4. Neither the name of The NetBSD Foundation nor the names of its\r
 *    contributors may be used to endorse or promote products derived\r
 *    from this software without specific prior written permission.\r
 *\r
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS\r
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED\r
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR\r
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS\r
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
 * POSSIBILITY OF SUCH DAMAGE.\r
 */\r
\r
#ifndef _IA64_CPU_COUNTER_H_\r
#define _IA64_CPU_COUNTER_H_\r
\r
/*\r
 * Machine-specific support for CPU counter.\r
 */\r
\r
#ifdef _KERNEL\r
\r
#include <machine/ia64_cpu.h>\r
\r
static __inline int\r
cpu_hascounter(void)\r
{\r
	return 1;\r
}\r
\r
static __inline uint64_t\r
cpu_counter(void)\r
{\r
	return ia64_get_itc();\r
}\r
\r
static __inline uint32_t\r
cpu_counter32(void)\r
{\r
	return (ia64_get_itc() & 0xffffffffUL);\r
}\r
\r
static __inline uint64_t\r
cpu_frequency(struct cpu_info *ci)\r
{\r
	extern uint64_t itc_frequency;\r
\r
	return itc_frequency;\r
}\r
\r
#endif /* _KERNEL */\r
\r
#endif /* !_IA64_CPU_COUNTER_H_ */\r
Commit	Line	Data
2aa62f2b	1	/* $NetBSD: cpu_counter.h,v 1.1 2006/09/20 13:33:04 kochi Exp $ */\r
	2	\r
	3	/*-\r
	4	* Copyright (c) 2006 The NetBSD Foundation, Inc.\r
	5	* All rights reserved.\r
	6	*\r
	7	* This code is derived from software contributed to The NetBSD Foundation\r
	8	* by Takayoshi Kochi.\r
	9	*\r
	10	* Redistribution and use in source and binary forms, with or without\r
	11	* modification, are permitted provided that the following conditions\r
	12	* are met:\r
	13	* 1. Redistributions of source code must retain the above copyright\r
	14	* notice, this list of conditions and the following disclaimer.\r
	15	* 2. Redistributions in binary form must reproduce the above copyright\r
	16	* notice, this list of conditions and the following disclaimer in the\r
	17	* documentation and/or other materials provided with the distribution.\r
	18	* 3. All advertising materials mentioning features or use of this software\r
	19	* must display the following acknowledgement:\r
	20	* This product includes software developed by the NetBSD\r
	21	* Foundation, Inc. and its contributors.\r
	22	* 4. Neither the name of The NetBSD Foundation nor the names of its\r
	23	* contributors may be used to endorse or promote products derived\r
	24	* from this software without specific prior written permission.\r
	25	*\r
	26	* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS\r
	27	* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED\r
	28	* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR\r
	29	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS\r
	30	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r
	31	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r
	32	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r
	33	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r
	34	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r
	35	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
	36	* POSSIBILITY OF SUCH DAMAGE.\r
	37	*/\r
	38	\r
	39	#ifndef _IA64_CPU_COUNTER_H_\r
	40	#define _IA64_CPU_COUNTER_H_\r
	41	\r
	42	/*\r
	43	* Machine-specific support for CPU counter.\r
	44	*/\r
	45	\r
	46	#ifdef _KERNEL\r
	47	\r
	48	#include <machine/ia64_cpu.h>\r
	49	\r
	50	static __inline int\r
	51	cpu_hascounter(void)\r
	52	{\r
	53	return 1;\r
	54	}\r
	55	\r
	56	static __inline uint64_t\r
	57	cpu_counter(void)\r
	58	{\r
	59	return ia64_get_itc();\r
	60	}\r
	61	\r
	62	static __inline uint32_t\r
	63	cpu_counter32(void)\r
	64	{\r
65	return (ia64_get_itc() & 0xffffffffUL);\r
66	}\r
67	\r
68	static __inline uint64_t\r
69	cpu_frequency(struct cpu_info *ci)\r
70	{\r
71	extern uint64_t itc_frequency;\r
72	\r
73	return itc_frequency;\r
74	}\r
75	\r
76	#endif /* _KERNEL */\r
77	\r
78	#endif /* !_IA64_CPU_COUNTER_H_ */\r