pte.h revision 152310
1/*- 2 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 3 * Copyright (C) 1995, 1996 TooLs GmbH. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by TooLs GmbH. 17 * 4. The name of TooLs GmbH may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $NetBSD: pte.h,v 1.2 1998/08/31 14:43:40 tsubai Exp $ 32 * $FreeBSD: head/sys/powerpc/include/pte.h 152310 2005-11-11 12:03:28Z grehan $ 33 */ 34 35#ifndef _MACHINE_PTE_H_ 36#define _MACHINE_PTE_H_ 37 38/* 39 * Page Table Entries 40 */ 41#ifndef LOCORE 42 43/* 32-bit PTE */ 44struct pte { 45 u_int32_t pte_hi; 46 u_int32_t pte_lo; 47}; 48 49struct pteg { 50 struct pte pt[8]; 51}; 52 53/* 64-bit (long) PTE */ 54struct lpte { 55 u_int64_t pte_hi; 56 u_int64_t pte_lo; 57}; 58 59struct lpteg { 60 struct lpte pt[8]; 61}; 62 63#endif /* LOCORE */ 64 65/* 32-bit PTE definitions */ 66 67/* High word: */ 68#define PTE_VALID 0x80000000 69#define PTE_VSID_SHFT 7 70#define PTE_HID 0x00000040 71#define PTE_API 0x0000003f 72/* Low word: */ 73#define PTE_RPGN 0xfffff000 74#define PTE_REF 0x00000100 75#define PTE_CHG 0x00000080 76#define PTE_WIMG 0x00000078 77#define PTE_W 0x00000040 78#define PTE_I 0x00000020 79#define PTE_M 0x00000010 80#define PTE_G 0x00000008 81#define PTE_PP 0x00000003 82#define PTE_SO 0x00000000 /* Super. Only (U: XX, S: RW) */ 83#define PTE_SW 0x00000001 /* Super. Write-Only (U: RO, S: RW) */ 84#define PTE_BW 0x00000002 /* Supervisor (U: RW, S: RW) */ 85#define PTE_BR 0x00000003 /* Both Read Only (U: RO, S: RO) */ 86#define PTE_RW PTE_BW 87#define PTE_RO PTE_BR 88 89#define PTE_EXEC 0x00000200 /* pseudo bit in attrs; page is exec */ 90 91/* 64-bit PTE definitions */ 92 93/* High quadword: */ 94#define LPTE_VSID_SHIFT 12 95#define LPTE_API 0x0000000000000F80ULL 96#define LPTE_BIG 0x0000000000000004ULL /* 4kb/16Mb page */ 97#define LPTE_HID 0x0000000000000002ULL 98#define LPTE_VALID 0x0000000000000001ULL 99 100/* Low quadword: */ 101#define EXTEND_PTE(x) UINT64_C(x) /* make constants 64-bit */ 102#define LPTE_RPGN 0xfffffffffffff000ULL 103#define LPTE_REF EXTEND_PTE( PTE_REF ) 104#define LPTE_CHG EXTEND_PTE( PTE_CHG ) 105#define LPTE_WIMG EXTEND_PTE( PTE_WIMG ) 106#define LPTE_W EXTEND_PTE( PTE_W ) 107#define LPTE_I EXTEND_PTE( PTE_I ) 108#define LPTE_M EXTEND_PTE( PTE_M ) 109#define LPTE_G EXTEND_PTE( PTE_G ) 110#define LPTE_NOEXEC 0x0000000000000004ULL 111#define LPTE_PP EXTEND_PTE( PTE_PP ) 112 113#define LPTE_SO EXTEND_PTE( PTE_SO ) /* Super. Only */ 114#define LPTE_SW EXTEND_PTE( PTE_SW ) /* Super. Write-Only */ 115#define LPTE_BW EXTEND_PTE( PTE_BW ) /* Supervisor */ 116#define LPTE_BR EXTEND_PTE( PTE_BR ) /* Both Read Only */ 117#define LPTE_RW LPTE_BW 118#define LPTE_RO LPTE_BR 119 120#ifndef LOCORE 121typedef struct pte pte_t; 122typedef struct lpte lpte_t; 123#endif /* LOCORE */ 124 125/* 126 * Extract bits from address 127 */ 128#define ADDR_SR_SHFT 28 129#define ADDR_PIDX 0x0ffff000 130#define ADDR_PIDX_SHFT 12 131#define ADDR_API_SHFT 22 132#define ADDR_POFF 0x00000fff 133 134/* 135 * Bits in DSISR: 136 */ 137#define DSISR_DIRECT 0x80000000 138#define DSISR_NOTFOUND 0x40000000 139#define DSISR_PROTECT 0x08000000 140#define DSISR_INVRX 0x04000000 141#define DSISR_STORE 0x02000000 142#define DSISR_DABR 0x00400000 143#define DSISR_SEGMENT 0x00200000 144#define DSISR_EAR 0x00100000 145 146/* 147 * Bits in SRR1 on ISI: 148 */ 149#define ISSRR1_NOTFOUND 0x40000000 150#define ISSRR1_DIRECT 0x10000000 151#define ISSRR1_PROTECT 0x08000000 152#define ISSRR1_SEGMENT 0x00200000 153 154#ifdef _KERNEL 155#ifndef LOCORE 156extern u_int dsisr(void); 157#endif /* _KERNEL */ 158#endif /* LOCORE */ 159#endif /* _MACHINE_PTE_H_ */ 160