| 1 |
/* GXemul: $Id: ppc_pte.h,v 1.1 2005/11/22 16:26:39 debug Exp $ */ |
| 2 |
/* $NetBSD: pte.h,v 1.5 2003/11/21 22:57:14 matt Exp $ */ |
| 3 |
|
| 4 |
#ifndef _POWERPC_OEA_PTE_H_ |
| 5 |
#define _POWERPC_OEA_PTE_H_ |
| 6 |
|
| 7 |
/*- |
| 8 |
* Copyright (C) 2003 Matt Thomas |
| 9 |
* Copyright (C) 1995, 1996 Wolfgang Solfrank. |
| 10 |
* Copyright (C) 1995, 1996 TooLs GmbH. |
| 11 |
* All rights reserved. |
| 12 |
* |
| 13 |
* Redistribution and use in source and binary forms, with or without |
| 14 |
* modification, are permitted provided that the following conditions |
| 15 |
* are met: |
| 16 |
* 1. Redistributions of source code must retain the above copyright |
| 17 |
* notice, this list of conditions and the following disclaimer. |
| 18 |
* 2. Redistributions in binary form must reproduce the above copyright |
| 19 |
* notice, this list of conditions and the following disclaimer in the |
| 20 |
* documentation and/or other materials provided with the distribution. |
| 21 |
* 3. All advertising materials mentioning features or use of this software |
| 22 |
* must display the following acknowledgement: |
| 23 |
* This product includes software developed by TooLs GmbH. |
| 24 |
* 4. The name of TooLs GmbH may not be used to endorse or promote products |
| 25 |
* derived from this software without specific prior written permission. |
| 26 |
* |
| 27 |
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR |
| 28 |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 29 |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 30 |
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 31 |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 32 |
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 33 |
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 34 |
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 35 |
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 36 |
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 37 |
*/ |
| 38 |
|
| 39 |
#if 0 |
| 40 |
#include <sys/queue.h> |
| 41 |
|
| 42 |
/* |
| 43 |
* Page Table Entries |
| 44 |
*/ |
| 45 |
#ifndef _LOCORE |
| 46 |
struct pte { |
| 47 |
register_t pte_hi; |
| 48 |
register_t pte_lo; |
| 49 |
}; |
| 50 |
|
| 51 |
struct pteg { |
| 52 |
struct pte pt[8]; |
| 53 |
}; |
| 54 |
#endif /* _LOCORE */ |
| 55 |
#endif |
| 56 |
|
| 57 |
/* High word: */ |
| 58 |
#ifdef PPC_OEA64 |
| 59 |
#define PTE_VALID 0x00000001 |
| 60 |
#define PTE_HID 0x00000002 |
| 61 |
#define PTE_API 0x00000f80 |
| 62 |
#define PTE_API_SHFT 7 |
| 63 |
#define PTE_VSID_SHFT 12 |
| 64 |
#define PTE_VSID (~0xfffL) |
| 65 |
#else |
| 66 |
#define PTE_VALID 0x80000000 |
| 67 |
#define PTE_VSID 0x7fffff80 |
| 68 |
#define PTE_VSID_SHFT 7 |
| 69 |
#define PTE_VSID_LEN 24 |
| 70 |
#define PTE_HID 0x00000040 |
| 71 |
#define PTE_API 0x0000003f |
| 72 |
#define PTE_API_SHFT 0 |
| 73 |
#endif /* PPC_OEA64 */ |
| 74 |
|
| 75 |
|
| 76 |
/* Low word: */ |
| 77 |
#define PTE_RPGN (~0xfffL) |
| 78 |
#define PTE_RPGN_SHFT 12 |
| 79 |
#define PTE_REF 0x00000100 |
| 80 |
#define PTE_CHG 0x00000080 |
| 81 |
#define PTE_W 0x00000040 /* 1 = write-through, 0 = write-back */ |
| 82 |
#define PTE_I 0x00000020 /* cache inhibit */ |
| 83 |
#define PTE_M 0x00000010 /* memory coherency enable */ |
| 84 |
#define PTE_G 0x00000008 /* guarded region (not on 601) */ |
| 85 |
#define PTE_WIMG (PTE_W|PTE_I|PTE_M|PTE_G) |
| 86 |
#define PTE_IG (PTE_I|PTE_G) |
| 87 |
#define PTE_PP 0x00000003 |
| 88 |
#define PTE_SO 0x00000000 /* Super. Only (U: XX, S: RW) */ |
| 89 |
#define PTE_SW 0x00000001 /* Super. Write-Only (U: RO, S: RW) */ |
| 90 |
#define PTE_BW 0x00000002 /* Supervisor (U: RW, S: RW) */ |
| 91 |
#define PTE_BR 0x00000003 /* Both Read Only (U: RO, S: RO) */ |
| 92 |
#define PTE_RW PTE_BW |
| 93 |
#define PTE_RO PTE_BR |
| 94 |
|
| 95 |
#define PTE_EXEC 0x00000200 /* pseudo bit; page is exec */ |
| 96 |
|
| 97 |
/* |
| 98 |
* Extract bits from address |
| 99 |
*/ |
| 100 |
#define ADDR_SR (~0x0fffffffL) |
| 101 |
#define ADDR_SR_SHFT 28 |
| 102 |
#define ADDR_PIDX 0x0ffff000 |
| 103 |
#define ADDR_PIDX_SHFT 12 |
| 104 |
#ifdef PPC_OEA64 |
| 105 |
#define ADDR_API_SHFT 23 /* API is 5 bits */ |
| 106 |
#else |
| 107 |
#define ADDR_API_SHFT 22 /* API is 6 bits */ |
| 108 |
#endif /* PPC_OEA64 */ |
| 109 |
#define ADDR_POFF 0x00000fff |
| 110 |
|
| 111 |
#ifdef PPC_OEA64 |
| 112 |
/* |
| 113 |
* Segment Table Element |
| 114 |
*/ |
| 115 |
#if 0 |
| 116 |
#ifndef _LOCORE |
| 117 |
struct ste { |
| 118 |
register_t ste_hi; |
| 119 |
register_t ste_lo; |
| 120 |
}; |
| 121 |
|
| 122 |
struct steg { |
| 123 |
struct ste st[8]; |
| 124 |
}; |
| 125 |
#endif /* _LOCORE */ |
| 126 |
#endif |
| 127 |
|
| 128 |
/* High Word */ |
| 129 |
#define STE_VALID 0x00000080 |
| 130 |
#define STE_TYPE 0x00000040 |
| 131 |
#define STE_SUKEY 0x00000020 /* Super-state protection */ |
| 132 |
#define STE_PRKEY 0x00000010 /* User-state protection */ |
| 133 |
#define STE_NOEXEC 0x00000008 /* No-execute protection bit */ |
| 134 |
#define STE_ESID (~0x0fffffffL) /* Effective Segment ID */ |
| 135 |
#define STE_ESID_SHFT 28 |
| 136 |
#define STE_ESID_MASK 0x0000001f /* low 5 bits of the ESID */ |
| 137 |
|
| 138 |
/* Low Word */ |
| 139 |
#define STE_VSID (~0xfffL) /* Virtual Segment ID */ |
| 140 |
#define STE_VSID_SHFT 12 |
| 141 |
#defien STE_VSID_WIDTH 52 |
| 142 |
|
| 143 |
#define SR_VSID_SHFT STE_VSID_SHFT /* compatibility with PPC_OEA */ |
| 144 |
#define SR_VSID_WIDTH STE_VSID_WIDTH /* compatibility with PPC_OEA */ |
| 145 |
|
| 146 |
#define SR_KEY_LEN 9 /* 64 groups of 8 segment entries */ |
| 147 |
#else /* !defined(PPC_OEA64) */ |
| 148 |
|
| 149 |
/* |
| 150 |
* Segment registers |
| 151 |
*/ |
| 152 |
#define SR_KEY_LEN 4 /* 16 segment registers */ |
| 153 |
#define SR_TYPE 0x80000000 /* T=0 selects memory format */ |
| 154 |
#define SR_SUKEY 0x40000000 /* Supervisor protection key */ |
| 155 |
#define SR_PRKEY 0x20000000 /* User protection key */ |
| 156 |
#define SR_NOEXEC 0x10000000 /* No-execute protection bit */ |
| 157 |
#define SR_VSID_SHFT 0 /* Starts at LSB */ |
| 158 |
#define SR_VSID_WIDTH 24 /* Goes for 24 bits */ |
| 159 |
|
| 160 |
#endif /* PPC_OEA64 */ |
| 161 |
|
| 162 |
/* Virtual segment ID */ |
| 163 |
#define SR_VSID (((1L << SR_VSID_WIDTH) - 1) << SR_VSID_SHFT) |
| 164 |
|
| 165 |
#endif /* _POWERPC_OEA_PTE_H_ */ |
Parent Directory
| 
Revision Log