projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 6601e61a | 1 | /* |
| 0c530ab8 | 2 | * Copyright (c) 2004-2006 Apple Computer, Inc. All rights reserved. |
| 6601e61a A |
3 | * |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * The contents of this file constitute Original Code as defined in and | |
| 7 | * are subject to the Apple Public Source License Version 1.1 (the | |
| 8 | * "License"). You may not use this file except in compliance with the | |
| 9 | * License. Please obtain a copy of the License at | |
| 10 | * http://www.apple.com/publicsource and read it before using this file. | |
| 11 | * | |
| 12 | * This Original Code and all software distributed under the License are | |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the | |
| 17 | * License for the specific language governing rights and limitations | |
| 18 | * under the License. | |
| 19 | * | |
| 20 | * @APPLE_LICENSE_HEADER_END@ | |
| 21 | */ | |
| 22 | /* | |
| 23 | * @OSF_COPYRIGHT@ | |
| 24 | */ | |
| 0c530ab8 A |
25 | /* |
| 26 | * @APPLE_FREE_COPYRIGHT@ | |
| 27 | */ | |
| 28 | /* | |
| 29 | * File: tsc.h | |
| 30 | * Purpose: Contains the TSC initialization and conversion | |
| 31 | * factors. | |
| 32 | */ | |
| 33 | #ifdef KERNEL_PRIVATE | |
| 34 | #ifndef _I386_TSC_H_ | |
| 35 | #define _I386_TSC_H_ | |
| 36 | ||
| 37 | #define BusRatioShift 40 | |
| 38 | #define BusRatioMask 0x1F | |
| 39 | #define IA32_PERF_STS 0x198 | |
| 40 | ||
| 41 | extern uint64_t busFCvtt2n; | |
| 42 | extern uint64_t busFCvtn2t; | |
| 43 | extern uint64_t tscFreq; | |
| 44 | extern uint64_t tscFCvtt2n; | |
| 45 | extern uint64_t tscFCvtn2t; | |
| 46 | extern uint64_t tscGranularity; | |
| 47 | extern uint64_t bus2tsc; | |
| 48 | ||
| 49 | struct tscInfo | |
| 50 | { | |
| 51 | uint64_t busFCvtt2n; | |
| 52 | uint64_t busFCvtn2t; | |
| 53 | uint64_t tscFreq; | |
| 54 | uint64_t tscFCvtt2n; | |
| 55 | uint64_t tscFCvtn2t; | |
| 56 | uint64_t tscGranularity; | |
| 57 | uint64_t bus2tsc; | |
| 58 | }; | |
| 59 | typedef struct tscInfo tscInfo_t; | |
| 60 | ||
| 61 | extern void tsc_get_info(tscInfo_t *info); | |
| 6601e61a | 62 | |
| 0c530ab8 | 63 | extern void tsc_init(void); |
| 6601e61a | 64 | |
| 0c530ab8 A |
65 | #endif /* _I386_TSC_H_ */ |
| 66 | #endif /* KERNEL_PRIVATE */ |