projects / apple / xnu.git / blame
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|---|---|---|
| 43866e37 A |
1 | /* |
| 2 | * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 6601e61a | 4 | * @APPLE_LICENSE_HEADER_START@ |
| 43866e37 | 5 | * |
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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 | * |
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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, | |
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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 _PPC_COMMPAGE_H | |
| 24 | #define _PPC_COMMPAGE_H | |
| 25 | ||
| 26 | #ifndef __ASSEMBLER__ | |
| 27 | #include <stdint.h> | |
| 28 | #endif /* __ASSEMBLER__ */ | |
| 29 | ||
| 30 | ||
| 31 | /* Special check bits for the compage_descriptor "special" field. */ | |
| 32 | ||
| 33 | #define kCommPageDCBA 0x0001 // this routine uses DCBA, map to NOP if not appropriate | |
| 91447636 A |
34 | #define kCommPageSYNC 0x0002 // this routine uses SYNC, LWSYNC, or EIEIO, map to NOP if UP |
| 35 | #define kCommPageISYNC 0x0004 // this routine uses ISYNC, map to NOP if UP | |
| 36 | #define kCommPageMTCRF 0x0008 // set bit 11 in MTCRF if only 1 cr specified | |
| 37 | ||
| 38 | #define kPort32to64 0x1000 // written for 32-bit, must port to 64-bit | |
| 39 | #define kCommPage64 0x2000 // this routine is useable in 64-bit mode | |
| 40 | #define kCommPage32 0x4000 // this routine is useable in 32-bit mode | |
| 41 | #define kCommPageBoth (kCommPage32+kCommPage64) | |
| 43866e37 A |
42 | |
| 43 | ||
| 44 | #ifdef __ASSEMBLER__ | |
| 45 | ||
| 46 | #define COMMPAGE_DESCRIPTOR(label,address,must,cant,special) \ | |
| 91447636 | 47 | .globl EXT(label) @\ |
| 43866e37 A |
48 | LEXT(label) @\ |
| 49 | .short label-. @\ | |
| 50 | .short .-label-2 @\ | |
| 51 | .short address @\ | |
| 52 | .short special @\ | |
| 91447636 | 53 | .long must @\ |
| 43866e37 A |
54 | .long cant |
| 55 | ||
| 56 | ||
| 57 | #else /* __ASSEMBLER__ */ | |
| 58 | ||
| 59 | /* Each potential commpage routine is described by one of these. | |
| 60 | * Note that the COMMPAGE_DESCRIPTOR macro (above), used in | |
| 61 | * assembly language, must agree with this. | |
| 62 | */ | |
| 63 | ||
| 64 | typedef struct commpage_descriptor { | |
| 65 | short code_offset; // offset to code from this descriptor | |
| 66 | short code_length; // length in bytes | |
| 67 | short commpage_address; // put at this address (_COMM_PAGE_BCOPY etc) | |
| 68 | short special; // special handling bits for DCBA and SYNC etc | |
| 69 | long musthave; // _cpu_capability bits we must have | |
| 70 | long canthave; // _cpu_capability bits we can't have | |
| 71 | } commpage_descriptor; | |
| 72 | ||
| 73 | ||
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74 | extern char *commPagePtr32; // virt address of 32-bit commpage in kernel map |
| 75 | extern char *commPagePtr64; // virt address of 64-bit commpage in kernel map | |
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76 | |
| 77 | ||
| 6601e61a | 78 | extern void commpage_set_timestamp(uint64_t tbr,uint32_t secs,uint32_t usecs,uint32_t ticks_per_sec); |
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79 | extern int commpage_time_dcba( void ); |
| 80 | ||
| 81 | #endif /* __ASSEMBLER__ */ | |
| 82 | ||
| 83 | #endif /* _PPC_COMMPAGE_H */ |