/* * Copyright (c) 2004-2006 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the * License may not be used to create, or enable the creation or * redistribution of, unlawful or unlicensed copies of an Apple operating * system, or to circumvent, violate, or enable the circumvention or * violation of, any terms of an Apple operating system software license * agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * @APPLE_FREE_COPYRIGHT@ */ /* * File: tsc.h * Purpose: Contains the TSC initialization and conversion * factors. */ #ifdef KERNEL_PRIVATE #ifndef _I386_TSC_H_ #define _I386_TSC_H_ #define BusRatioShift 40 #define BusRatioMask 0x1F #define IA32_PERF_STS 0x198 extern uint64_t busFCvtt2n; extern uint64_t busFCvtn2t; extern uint64_t tscFreq; extern uint64_t tscFCvtt2n; extern uint64_t tscFCvtn2t; extern uint64_t tscGranularity; extern uint64_t bus2tsc; struct tscInfo { uint64_t busFCvtt2n; uint64_t busFCvtn2t; uint64_t tscFreq; uint64_t tscFCvtt2n; uint64_t tscFCvtn2t; uint64_t tscGranularity; uint64_t bus2tsc; }; typedef struct tscInfo tscInfo_t; extern void tsc_get_info(tscInfo_t *info); extern void tsc_init(void); #endif /* _I386_TSC_H_ */ #endif /* KERNEL_PRIVATE */