pte.h revision 1.1
1 /* $NetBSD: pte.h,v 1.1 1998/05/15 10:15:55 tsubai Exp $ */ 2 3 /*- 4 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 5 * Copyright (C) 1995, 1996 TooLs GmbH. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by TooLs GmbH. 19 * 4. The name of TooLs GmbH may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #ifndef _MACHINE_PTE_H_ 35 #define _MACHINE_PTE_H_ 36 37 #include <sys/queue.h> 38 39 /* 40 * Page Table Entries 41 */ 42 #ifndef _LOCORE 43 struct pte { 44 u_int pte_hi; 45 u_int pte_lo; 46 }; 47 #endif /* _LOCORE */ 48 /* High word: */ 49 #define PTE_VALID 0x80000000 50 #define PTE_VSID_SHFT 7 51 #define PTE_HID 0x00000040 52 #define PTE_API 0x0000003f 53 /* Low word: */ 54 #define PTE_RPGN 0xfffff000 55 #define PTE_REF 0x00000100 56 #define PTE_CHG 0x00000080 57 #define PTE_WIMG 0x00000078 58 #define PTE_W 0x00000040 59 #define PTE_I 0x00000020 60 #define PTE_M 0x00000010 61 #define PTE_G 0x00000008 62 #define PTE_PP 0x00000003 63 #define PTE_RO 0x00000003 64 #define PTE_RW 0x00000002 65 66 #ifndef _LOCORE 67 typedef struct pte pte_t; 68 #endif /* _LOCORE */ 69 70 /* 71 * Extract bits from address 72 */ 73 #define ADDR_SR_SHFT 28 74 #define ADDR_PIDX 0x0ffff000 75 #define ADDR_PIDX_SHFT 12 76 #define ADDR_API_SHFT 22 77 #define ADDR_POFF 0x00000fff 78 79 #ifndef _LOCORE 80 #ifdef _KERNEL 81 extern pte_t *ptable; 82 extern int ptab_cnt; 83 #endif /* _KERNEL */ 84 #endif /* _LOCORE */ 85 86 /* 87 * Bits in DSISR: 88 */ 89 #define DSISR_DIRECT 0x80000000 90 #define DSISR_NOTFOUND 0x40000000 91 #define DSISR_PROTECT 0x08000000 92 #define DSISR_INVRX 0x04000000 93 #define DSISR_STORE 0x02000000 94 #define DSISR_DABR 0x00400000 95 #define DSISR_SEGMENT 0x00200000 96 #define DSISR_EAR 0x00100000 97 98 /* 99 * Bits in SRR1 on ISI: 100 */ 101 #define ISSRR1_NOTFOUND 0x40000000 102 #define ISSRR1_DIRECT 0x10000000 103 #define ISSRR1_PROTECT 0x08000000 104 #define ISSRR1_SEGMENT 0x00200000 105 106 #ifdef _KERNEL 107 #ifndef _LOCORE 108 extern u_int dsisr __P((void)); 109 extern vm_offset_t dar __P((void)); 110 #endif /* _KERNEL */ 111 #endif /* _LOCORE */ 112 #endif /* _MACHINE_PTE_H_ */ 113
Indexes created Tue Sep 30 11:09:46 GMT 2025