1 /* $NetBSD: nexus.h,v 1.2 1994/10/26 08:02:17 cgd Exp $ */ 2 3 /*- 4 * Copyright (c) 1982, 1986 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)nexus.h 7.3 (Berkeley) 5/9/91 36 */ 37 38 /* 39 * Information about nexus's. 40 * 41 * Each machine has an address of backplane slots (nexi). 42 * Each nexus is some type of adapter, whose code is the low 43 * byte of the first word of the adapter address space. 44 * At boot time the system looks through the array of available 45 * slots and finds the interconnects for the machine. 46 */ 47 #define IO_CMI750 2 48 #define MAXNMCR 1 49 50 #define NNEXSBI 16 51 #if VAX8600 52 #define NNEX8600 NNEXSBI 53 #define NEXA8600 ((struct nexus *)(0x20000000)) 54 #define NEXB8600 ((struct nexus *)(0x22000000)) 55 #endif 56 #if VAX780 57 #define NNEX780 NNEXSBI 58 #define NEX780 ((struct nexus *)0x20000000) 59 #endif 60 #if VAX750 61 #define NNEX750 NNEXSBI 62 #ifndef ASSEMBLER 63 #define NEX750 ((struct nexus*)0xf20000) 64 #else 65 #define NEX750 (0xF20000) 66 #endif 67 #endif 68 #if VAX730 69 #define NNEX730 NNEXSBI 70 #define NEX730 ((struct nexus *)0xf20000) 71 #endif 72 #define NEXSIZE 0x2000 73 74 #if VAX8600 75 #define MAXNNEXUS (2 * NNEXSBI) 76 #else 77 #define MAXNNEXUS NNEXSBI 78 #endif 79 80 #ifndef ASSEMBLER 81 82 #include "sys/types.h" 83 84 struct nexus { 85 union nexcsr { 86 long nex_csr; 87 u_char nex_type; 88 } nexcsr; 89 long nex_pad[NEXSIZE / sizeof (long) - 1]; 90 }; 91 92 struct iobus { 93 int io_type; 94 int io_addr; 95 int io_size; 96 int io_details; 97 }; 98 99 struct nexusconnect { 100 int psb_nnexus; 101 struct nexus *psb_nexbase; 102 int psb_ubatype; 103 int psb_nubabdp; 104 caddr_t *psb_umaddr; 105 int *psb_nextype; 106 }; 107 108 extern caddr_t *nex_vec; 109 #define nex_vec_num(ipl, nexnum) nex_vec[(ipl-14)*16+nexnum] 110 111 /* XXX 112 #ifdef KERNEL 113 struct nexus nexus[MAXNNEXUS]; 114 #endif 115 */ 116 #endif 117 118 /* 119 * Bits in high word of nexus's. 120 */ 121 #define SBI_PARFLT (1<<31) /* sbi parity fault */ 122 #define SBI_WSQFLT (1<<30) /* write sequence fault */ 123 #define SBI_URDFLT (1<<29) /* unexpected read data fault */ 124 #define SBI_ISQFLT (1<<28) /* interlock sequence fault */ 125 #define SBI_MXTFLT (1<<27) /* multiple transmitter fault */ 126 #define SBI_XMTFLT (1<<26) /* transmit fault */ 127 128 #define NEX_CFGFLT (0xfc000000) 129 130 #ifndef LOCORE 131 #if defined(VAX780) || defined(VAX8600) 132 #define NEXFLT_BITS \ 133 "\20\40PARFLT\37WSQFLT\36URDFLT\35ISQFLT\34MXTFLT\33XMTFLT" 134 #endif 135 #endif 136 137 #define NEX_APD (1<<23) /* adaptor power down */ 138 #define NEX_APU (1<<22) /* adaptor power up */ 139 140 #define MBA_OT (1<<21) /* overtemperature */ 141 142 #define UBA_UBINIT (1<<18) /* unibus init */ 143 #define UBA_UBPDN (1<<17) /* unibus power down */ 144 #define UBA_UBIC (1<<16) /* unibus initialization complete */ 145 146 /* 147 * Types for nex_type. 148 */ 149 #define NEX_ANY 0 /* pseudo for handling 11/750 */ 150 #define NEX_MEM4 0x08 /* 4K chips, non-interleaved mem */ 151 #define NEX_MEM4I 0x09 /* 4K chips, interleaved mem */ 152 #define NEX_MEM16 0x10 /* 16K chips, non-interleaved mem */ 153 #define NEX_MEM16I 0x11 /* 16K chips, interleaved mem */ 154 #define NEX_MBA 0x20 /* Massbus adaptor */ 155 #define NEX_UBA0 0x28 /* Unibus adaptor */ 156 #define NEX_UBA1 0x29 /* 4 flavours for 4 addr spaces */ 157 #define NEX_UBA2 0x2a 158 #define NEX_UBA3 0x2b 159 #define NEX_DR32 0x30 /* DR32 user i'face to SBI */ 160 #define NEX_CI 0x38 /* CI adaptor */ 161 #define NEX_MPM0 0x40 /* Multi-port mem */ 162 #define NEX_MPM1 0x41 /* Who knows why 4 different ones ? */ 163 #define NEX_MPM2 0x42 164 #define NEX_MPM3 0x43 165 #define NEX_MEM64L 0x68 /* 64K chips, non-interleaved, lower */ 166 #define NEX_MEM64LI 0x69 /* 64K chips, ext-interleaved, lower */ 167 #define NEX_MEM64U 0x6a /* 64K chips, non-interleaved, upper */ 168 #define NEX_MEM64UI 0x6b /* 64K chips, ext-interleaved, upper */ 169 #define NEX_MEM64I 0x6c /* 64K chips, interleaved */ 170 #define NEX_MEM256L 0x70 /* 256K chips, non-interleaved, lower */ 171 #define NEX_MEM256LI 0x71 /* 256K chips, ext-interleaved, lower */ 172 #define NEX_MEM256U 0x72 /* 256K chips, non-interleaved, upper */ 173 #define NEX_MEM256UI 0x73 /* 256K chips, ext-interleaved, upper */ 174 #define NEX_MEM256I 0x74 /* 256K chips, interleaved */ 175