projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 43866e37 | 1 | /* |
| 6601e61a | 2 | * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. |
| 43866e37 | 3 | * |
| 6601e61a | 4 | * @APPLE_LICENSE_HEADER_START@ |
| 43866e37 | 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@ |
| 43866e37 A |
21 | */ |
| 22 | ||
| 23 | #ifndef _I386_COMMPAGE_H | |
| 24 | #define _I386_COMMPAGE_H | |
| 25 | ||
| 55e303ae A |
26 | #ifndef __ASSEMBLER__ |
| 27 | #include <stdint.h> | |
| 28 | #endif /* __ASSEMBLER__ */ | |
| 29 | ||
| 30 | #ifdef __ASSEMBLER__ | |
| 6601e61a | 31 | #include <machine/asm.h> |
| 55e303ae A |
32 | |
| 33 | #define COMMPAGE_DESCRIPTOR(label,address,must,cant) \ | |
| 34 | L ## label ## _end: ;\ | |
| 35 | .const_data ;\ | |
| 36 | L ## label ## _size = L ## label ## _end - L ## label ;\ | |
| 37 | .private_extern _commpage_ ## label ;\ | |
| 38 | _commpage_ ## label ## : ;\ | |
| 39 | .long L ## label ;\ | |
| 40 | .long L ## label ## _size ;\ | |
| 41 | .long address ;\ | |
| 42 | .long must ;\ | |
| 43 | .long cant ;\ | |
| 44 | .text | |
| 45 | ||
| 46 | #else /* __ASSEMBLER__ */ | |
| 47 | ||
| 48 | /* Each potential commpage routine is described by one of these. | |
| 49 | * Note that the COMMPAGE_DESCRIPTOR macro (above), used in | |
| 50 | * assembly language, must agree with this. | |
| 51 | */ | |
| 52 | ||
| 53 | typedef struct commpage_descriptor { | |
| 54 | void *code_address; // address of code | |
| 55 | long code_length; // length in bytes | |
| 56 | long commpage_address; // put at this address (_COMM_PAGE_BCOPY etc) | |
| 57 | long musthave; // _cpu_capability bits we must have | |
| 58 | long canthave; // _cpu_capability bits we can't have | |
| 59 | } commpage_descriptor; | |
| 60 | ||
| 61 | ||
| 6601e61a | 62 | extern char *commPagePtr; // virt address of commpage in kernel map |
| 55e303ae | 63 | |
| 6601e61a | 64 | extern void commpage_set_timestamp(uint64_t tbr,uint32_t secs,uint32_t usecs,uint32_t ticks_per_sec); |
| 55e303ae | 65 | |
| 6601e61a A |
66 | typedef struct { |
| 67 | uint64_t nt_base_tsc; | |
| 68 | uint64_t nt_base_ns; | |
| 69 | uint32_t nt_scale; | |
| 70 | uint32_t nt_shift; | |
| 71 | uint64_t nt_check_tsc; | |
| 72 | } commpage_nanotime_t; | |
| 73 | extern void commpage_set_nanotime(commpage_nanotime_t *new_nanotime); | |
| 91447636 | 74 | |
| 55e303ae | 75 | #endif /* __ASSEMBLER__ */ |
| 43866e37 A |
76 | |
| 77 | #endif /* _I386_COMMPAGE_H */ |