projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| d7e50217 | 6 | * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. |
| 1c79356b | 7 | * |
| d7e50217 A |
8 | * This file contains Original Code and/or Modifications of Original Code |
| 9 | * as defined in and that are subject to the Apple Public Source License | |
| 10 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 11 | * compliance with the License. Please obtain a copy of the License at | |
| 12 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 13 | * file. | |
| 14 | * | |
| 15 | * The Original Code and all software distributed under the License are | |
| 16 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 1c79356b A |
17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| d7e50217 A |
19 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 20 | * Please see the License for the specific language governing rights and | |
| 21 | * limitations under the License. | |
| 1c79356b A |
22 | * |
| 23 | * @APPLE_LICENSE_HEADER_END@ | |
| 24 | */ | |
| 25 | /* | |
| 26 | * @OSF_COPYRIGHT@ | |
| 27 | */ | |
| 28 | /* | |
| 29 | * HISTORY | |
| 30 | * | |
| 31 | * Revision 1.1.1.1 1998/09/22 21:05:36 wsanchez | |
| 32 | * Import of Mac OS X kernel (~semeria) | |
| 33 | * | |
| 34 | * Revision 1.1.1.1 1998/03/07 02:25:37 wsanchez | |
| 35 | * Import of OSF Mach kernel (~mburg) | |
| 36 | * | |
| 37 | * Revision 1.1.7.1 1994/09/23 01:54:44 ezf | |
| 38 | * change marker to not FREE | |
| 39 | * [1994/09/22 21:23:10 ezf] | |
| 40 | * | |
| 41 | * Revision 1.1.2.2 1993/08/24 09:39:55 rod | |
| 42 | * Created for iX86 common high resolution clock common code. CR #9400. | |
| 43 | * [1993/08/17 11:26:08 rod] | |
| 44 | * | |
| 45 | * $EndLog$ | |
| 46 | */ | |
| 47 | ||
| 48 | #include <vm/pmap.h> | |
| 49 | #include <i386/hi_res_clock.h> | |
| 50 | ||
| 51 | extern int *high_res_clock; | |
| 52 | ||
| 53 | vm_offset_t | |
| 54 | hi_res_clk_mmap( | |
| 55 | dev_t dev, | |
| 56 | vm_offset_t off, | |
| 57 | int prot) | |
| 58 | { | |
| 59 | if (prot & VM_PROT_WRITE) return (-1); | |
| 60 | return (i386_btop(pmap_extract(pmap_kernel(), | |
| 61 | (vm_offset_t) high_res_clock))); | |
| 62 | } |