/* * Copyright (c) 2004-2006 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This 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 OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_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 */