| | 1 | /* |
| | 2 | * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. |
| | 7 | * |
| | 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 |
| | 17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 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. |
| | 22 | * |
| | 23 | * @APPLE_LICENSE_HEADER_END@ |
| | 24 | */ |
| | 25 | |
| | 26 | #ifndef _I386_COMMPAGE_H |
| | 27 | #define _I386_COMMPAGE_H |
| | 28 | |
| | 29 | #ifndef __ASSEMBLER__ |
| | 30 | #include <stdint.h> |
| | 31 | #endif /* __ASSEMBLER__ */ |
| | 32 | |
| | 33 | #ifdef __ASSEMBLER__ |
| | 34 | #include <machine/asm.h> |
| | 35 | |
| | 36 | #define COMMPAGE_DESCRIPTOR(label,address,must,cant) \ |
| | 37 | L ## label ## _end: ;\ |
| | 38 | .const_data ;\ |
| | 39 | L ## label ## _size = L ## label ## _end - L ## label ;\ |
| | 40 | .private_extern _commpage_ ## label ;\ |
| | 41 | _commpage_ ## label ## : ;\ |
| | 42 | .long L ## label ;\ |
| | 43 | .long L ## label ## _size ;\ |
| | 44 | .long address ;\ |
| | 45 | .long must ;\ |
| | 46 | .long cant ;\ |
| | 47 | .text |
| | 48 | |
| | 49 | #else /* __ASSEMBLER__ */ |
| | 50 | |
| | 51 | /* Each potential commpage routine is described by one of these. |
| | 52 | * Note that the COMMPAGE_DESCRIPTOR macro (above), used in |
| | 53 | * assembly language, must agree with this. |
| | 54 | */ |
| | 55 | |
| | 56 | typedef struct commpage_descriptor { |
| | 57 | void *code_address; // address of code |
| | 58 | long code_length; // length in bytes |
| | 59 | long commpage_address; // put at this address (_COMM_PAGE_BCOPY etc) |
| | 60 | long musthave; // _cpu_capability bits we must have |
| | 61 | long canthave; // _cpu_capability bits we can't have |
| | 62 | } commpage_descriptor; |
| | 63 | |
| | 64 | |
| | 65 | extern char *commPagePtr; // virt address of commpage in kernel map |
| | 66 | |
| | 67 | extern void commpage_set_timestamp(uint64_t tbr,uint32_t secs,uint32_t usecs,uint32_t ticks_per_sec); |
| | 68 | |
| | 69 | #endif /* __ASSEMBLER__ */ |
| | 70 | |
| | 71 | #endif /* _I386_COMMPAGE_H */ |
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