1 /* $OpenBSD: pte.h,v 1.3 2001/09/01 15:49:05 drahn Exp $ */ 2 /* $NetBSD: pte.h,v 1.1 1996/09/30 16:34:32 ws Exp $ */ 3 4 /*- 5 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 6 * Copyright (C) 1995, 1996 TooLs GmbH. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by TooLs GmbH. 20 * 4. The name of TooLs GmbH may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 27 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 28 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 29 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 31 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 32 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #ifndef _POWERPC_PTE_H_ 36 #define _POWERPC_PTE_H_ 37 38 #include <sys/queue.h> 39 40 /* 41 * Page Table Entries 42 */ 43 #ifndef _LOCORE 44 struct pte { 45 u_int pte_hi; 46 u_int pte_lo; 47 }; 48 #endif /* _LOCORE */ 49 /* High word: */ 50 #define PTE_VALID 0x80000000 51 #define PTE_VSID_SHFT 7 52 #define PTE_HID 0x00000040 53 #define PTE_API 0x0000003f 54 /* Low word: */ 55 #define PTE_RPGN 0xfffff000 56 #define PTE_REF 0x00000100 57 #define PTE_CHG 0x00000080 58 #define PTE_WIMG 0x00000078 59 #define PTE_W 0x00000040 60 #define PTE_I 0x00000020 61 #define PTE_M 0x00000010 62 #define PTE_G 0x00000008 63 #define PTE_PP 0x00000003 64 #define PTE_RO 0x00000003 65 #define PTE_RW 0x00000002 66 67 #ifndef _LOCORE 68 typedef struct pte pte_t; 69 #endif /* _LOCORE */ 70 71 /* 72 * Extract bits from address 73 */ 74 #define ADDR_SR_SHFT 28 75 #define ADDR_PIDX 0x0ffff000 76 #define ADDR_PIDX_SHFT 12 77 #define ADDR_API_SHFT 22 78 #define ADDR_POFF 0x00000fff 79 80 #ifndef _LOCORE 81 #ifdef _KERNEL 82 extern pte_t *ptable; 83 extern int ptab_cnt; 84 #endif /* _KERNEL */ 85 #endif /* _LOCORE */ 86 87 /* 88 * Bits in DSISR: 89 */ 90 #define DSISR_DIRECT 0x80000000 91 #define DSISR_NOTFOUND 0x40000000 92 #define DSISR_PROTECT 0x08000000 93 #define DSISR_INVRX 0x04000000 94 #define DSISR_STORE 0x02000000 95 #define DSISR_DABR 0x00400000 96 #define DSISR_SEGMENT 0x00200000 97 #define DSISR_EAR 0x00100000 98 99 /* 100 * Bits in SRR1 on ISI: 101 */ 102 #define ISSRR1_NOTFOUND 0x40000000 103 #define ISSRR1_DIRECT 0x10000000 104 #define ISSRR1_PROTECT 0x08000000 105 #define ISSRR1_SEGMENT 0x00200000 106 107 #ifdef _KERNEL 108 #ifndef _LOCORE 109 extern u_int dsisr __P((void)); 110 extern vm_offset_t dar __P((void)); 111 #endif /* _KERNEL */ 112 #endif /* _LOCORE */ 113 #endif /* _POWERPC_PTE_H_ */ 114