projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 8ad349bb | 1 | /* |
| 5d5c5d0d | 2 | * Copyright (c) 2004-2006 Apple Computer, Inc. All rights reserved. |
| 8ad349bb A |
3 | * |
| 4 | * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ | |
| 5 | * | |
| 6 | * This file contains Original Code and/or Modifications of Original Code | |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. The rights granted to you under the | |
| 10 | * License may not be used to create, or enable the creation or | |
| 11 | * redistribution of, unlawful or unlicensed copies of an Apple operating | |
| 12 | * system, or to circumvent, violate, or enable the circumvention or | |
| 13 | * violation of, any terms of an Apple operating system software license | |
| 14 | * agreement. | |
| 15 | * | |
| 16 | * Please obtain a copy of the License at | |
| 17 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 18 | * file. | |
| 19 | * | |
| 20 | * The Original Code and all software distributed under the License are | |
| 21 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 22 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 23 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 24 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 25 | * Please see the License for the specific language governing rights and | |
| 26 | * limitations under the License. | |
| 27 | * | |
| 28 | * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ | |
| 29 | */ | |
| 30 | /* | |
| 31 | * @OSF_COPYRIGHT@ | |
| 32 | */ | |
| 5d5c5d0d A |
33 | /* |
| 34 | * @APPLE_FREE_COPYRIGHT@ | |
| 35 | */ | |
| 36 | /* | |
| 37 | * File: tsc.h | |
| 38 | * Purpose: Contains the TSC initialization and conversion | |
| 39 | * factors. | |
| 40 | */ | |
| 41 | #ifdef KERNEL_PRIVATE | |
| 42 | #ifndef _I386_TSC_H_ | |
| 43 | #define _I386_TSC_H_ | |
| 44 | ||
| 45 | #define BusRatioShift 40 | |
| 46 | #define BusRatioMask 0x1F | |
| 47 | #define IA32_PERF_STS 0x198 | |
| 48 | ||
| 49 | extern uint64_t busFCvtt2n; | |
| 50 | extern uint64_t busFCvtn2t; | |
| 51 | extern uint64_t tscFreq; | |
| 52 | extern uint64_t tscFCvtt2n; | |
| 53 | extern uint64_t tscFCvtn2t; | |
| 54 | extern uint64_t tscGranularity; | |
| 55 | extern uint64_t bus2tsc; | |
| 56 | ||
| 57 | struct tscInfo | |
| 58 | { | |
| 59 | uint64_t busFCvtt2n; | |
| 60 | uint64_t busFCvtn2t; | |
| 61 | uint64_t tscFreq; | |
| 62 | uint64_t tscFCvtt2n; | |
| 63 | uint64_t tscFCvtn2t; | |
| 64 | uint64_t tscGranularity; | |
| 65 | uint64_t bus2tsc; | |
| 66 | }; | |
| 67 | typedef struct tscInfo tscInfo_t; | |
| 68 | ||
| 69 | extern void tsc_get_info(tscInfo_t *info); | |
| 8ad349bb | 70 | |
| 5d5c5d0d | 71 | extern void tsc_init(void); |
| 8ad349bb | 72 | |
| 5d5c5d0d A |
73 | #endif /* _I386_TSC_H_ */ |
| 74 | #endif /* KERNEL_PRIVATE */ |