projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b | 1 | /* |
| 91447636 | 2 | * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved. |
| 1c79356b | 3 | * |
| 6601e61a | 4 | * @APPLE_LICENSE_HEADER_START@ |
| 1c79356b | 5 | * |
| 6601e61a A |
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. | |
| 8f6c56a5 | 11 | * |
| 6601e61a A |
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 | |
| 8f6c56a5 A |
14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 6601e61a A |
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. | |
| 8f6c56a5 | 19 | * |
| 6601e61a | 20 | * @APPLE_LICENSE_HEADER_END@ |
| 1c79356b | 21 | */ |
| 91447636 A |
22 | |
| 23 | #ifndef _I386_MTRR_H_ | |
| 24 | #define _I386_MTRR_H_ | |
| 25 | ||
| 1c79356b | 26 | /* |
| 91447636 | 27 | * Memory type range register (MTRR) support. |
| 1c79356b | 28 | */ |
| 1c79356b | 29 | |
| 91447636 | 30 | #include <mach/std_types.h> |
| 9bccf70c | 31 | #include <sys/appleapiopts.h> |
| 91447636 A |
32 | #include <sys/cdefs.h> |
| 33 | ||
| 34 | #ifdef __APPLE_API_PRIVATE | |
| 35 | ||
| 36 | enum { | |
| 37 | MTRR_TYPE_UNCACHEABLE = 0, | |
| 38 | MTRR_TYPE_WRITECOMBINE = 1, | |
| 39 | MTRR_TYPE_WRITETHROUGH = 4, | |
| 40 | MTRR_TYPE_WRITEPROTECT = 5, | |
| 41 | MTRR_TYPE_WRITEBACK = 6 | |
| 42 | }; | |
| 43 | ||
| 44 | __BEGIN_DECLS | |
| 45 | ||
| 46 | extern void mtrr_init(void); | |
| 47 | extern kern_return_t mtrr_update_cpu(void); | |
| 48 | extern kern_return_t mtrr_update_all_cpus(void); | |
| 49 | ||
| 50 | extern kern_return_t mtrr_range_add( addr64_t phys_addr, | |
| 51 | uint64_t length, | |
| 52 | uint32_t mem_type); | |
| 9bccf70c | 53 | |
| 91447636 A |
54 | extern kern_return_t mtrr_range_remove( addr64_t phys_addr, |
| 55 | uint64_t length, | |
| 56 | uint32_t mem_type); | |
| 9bccf70c | 57 | |
| 91447636 | 58 | extern void pat_init(void); |
| 1c79356b | 59 | |
| 91447636 | 60 | __END_DECLS |
| 9bccf70c | 61 | |
| 91447636 | 62 | #endif /* __APPLE_API_PRIVATE */ |
| 9bccf70c | 63 | |
| 91447636 | 64 | #endif /* !_I386_MTRR_H_ */ |