1 /* 2 * Copyright (c) 1982, 1986 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 * 6 * @(#)ubareg.h 7.6 (Berkeley) 08/27/88 7 */ 8 9 /* 10 * VAX UNIBUS adapter registers 11 */ 12 13 /* 14 * "UNIBUS" adaptor types. 15 * This code is used for both UNIBUSes and Q-buses 16 * with different types of adaptors. 17 * Definition of a type includes support code for that type. 18 */ 19 #if VAX780 || VAX8600 20 #define DW780 1 /* has adaptor regs, sr: 780/785/8600 */ 21 #endif 22 23 #if VAX750 24 #define DW750 2 /* has adaptor regs, no sr: 750, 730 */ 25 #endif 26 27 #if VAX730 28 #define DW730 3 /* has adaptor regs, no sr: 750, 730 */ 29 #endif 30 31 #if VAX630 || VAX650 32 #define QBA 4 /* 22-bit Q-bus, no adaptor regs: uVAX II */ 33 #endif 34 35 #if VAX8200 || VAX8500 || VAX8800 36 #define DWBUA 5 /* BI UNIBUS adaptor: 8200/8500/8800 */ 37 #endif 38 39 /* 40 * Size of unibus memory address space in pages 41 * (also number of map registers). 42 * QBAPAGES should be 8192, but we don't need nearly 43 * that much address space; choose pragmatically. 44 */ 45 #define UBAPAGES 496 46 #define NUBMREG 496 47 #ifdef GATEWAY 48 #define QBAPAGES 1024 /* tunable: min UBAPAGES, max 8192 */ 49 #else 50 #define QBAPAGES UBAPAGES /* tunable: min UBAPAGES, max 8192 */ 51 #endif 52 #define UBAIOADDR 0760000 /* start of I/O page */ 53 #define UBAIOPAGES 16 54 55 #ifndef LOCORE 56 /* 57 * DWBUA hardware registers. 58 */ 59 struct dwbua_regs { 60 int pad1[456]; /* actually bii regs + pad */ 61 int bua_csr; /* control and status register */ 62 int bua_offset; /* vector offset register */ 63 int bua_fubar; /* failed UNIBUS address register */ 64 int bua_bifar; /* BI failed address register */ 65 int bua_udiag[5]; /* micro diagnostics (R/O) */ 66 int pad2[3]; 67 /* dpr[0] is for DDP; dpr's 1 through 5 are for BPD's 1 through 5 */ 68 int bua_dpr[6]; /* data path registers */ 69 int pad3[10]; 70 int bua_bdps[20]; /* buffered data path space *//*???*/ 71 int pad4[8]; 72 struct pte bua_map[UBAPAGES]; /* unibus map registers */ 73 int pad5[UBAIOPAGES]; /* no maps for device address space */ 74 }; 75 76 #ifdef DWBUA 77 /* bua_csr */ 78 #define BUACSR_ERR 0x80000000 /* composite error */ 79 #define BUACSR_BIF 0x10000000 /* BI failure */ 80 #define BUACSR_SSYNTO 0x08000000 /* slave sync timeout */ 81 #define BUACSR_UIE 0x04000000 /* unibus interlock error */ 82 #define BUACSR_IVMR 0x02000000 /* invalid map register */ 83 #define BUACSR_BADBDP 0x01000000 /* bad BDP select */ 84 #define BUACSR_BUAEIE 0x00100000 /* bua error interrupt enable (?) */ 85 #define BUACSR_UPI 0x00020000 /* unibus power init */ 86 #define BUACSR_UREGDUMP 0x00010000 /* microdiag register dump */ 87 #define BUACSR_IERRNO 0x000000ff /* mask for internal errror number */ 88 89 /* bua_offset */ 90 #define BUAOFFSET_MASK 0x00003e00 /* hence max offset = 15872 */ 91 92 /* bua_dpr */ 93 #define BUADPR_DPSEL 0x00e00000 /* data path select (?) */ 94 #define BUADPR_PURGE 0x00000001 /* purge bdp */ 95 96 /* bua_map -- in particular, those bits that are not in DW780s & DW750s */ 97 #define BUAMR_IOADR 0x40000000 /* I/O address space */ 98 #define BUAMR_LAE 0x04000000 /* longword access enable */ 99 /* I see no reason to use either one, though ... act 6 Aug 1987 */ 100 101 #define UBA_PURGEBUA(uba, bdp) \ 102 (((struct dwbua_regs *)(uba))->bua_dpr[bdp] |= BUADPR_PURGE) 103 #else 104 #define UBA_PURGEBUA(uba, bdp) 105 #endif 106 107 /* 108 * DW780/DW750 hardware registers 109 */ 110 struct uba_regs { 111 int uba_cnfgr; /* configuration register */ 112 int uba_cr; /* control register */ 113 int uba_sr; /* status register */ 114 int uba_dcr; /* diagnostic control register */ 115 int uba_fmer; /* failed map entry register */ 116 int uba_fubar; /* failed UNIBUS address register */ 117 int pad1[2]; 118 int uba_brsvr[4]; 119 int uba_brrvr[4]; /* receive vector registers */ 120 int uba_dpr[16]; /* buffered data path register */ 121 int pad2[480]; 122 struct pte uba_map[UBAPAGES]; /* unibus map register */ 123 int pad3[UBAIOPAGES]; /* no maps for device address space */ 124 }; 125 #endif 126 127 #ifdef DW780 128 /* uba_cnfgr */ 129 #define UBACNFGR_UBINIT 0x00040000 /* unibus init asserted */ 130 #define UBACNFGR_UBPDN 0x00020000 /* unibus power down */ 131 #define UBACNFGR_UBIC 0x00010000 /* unibus init complete */ 132 133 #define UBACNFGR_BITS \ 134 "\40\40PARFLT\37WSQFLT\36URDFLT\35ISQFLT\34MXTFLT\33XMTFLT\30ADPDN\27ADPUP\23UBINIT\22UBPDN\21UBIC" 135 136 /* uba_cr */ 137 #define UBACR_MRD16 0x40000000 /* map reg disable bit 4 */ 138 #define UBACR_MRD8 0x20000000 /* map reg disable bit 3 */ 139 #define UBACR_MRD4 0x10000000 /* map reg disable bit 2 */ 140 #define UBACR_MRD2 0x08000000 /* map reg disable bit 1 */ 141 #define UBACR_MRD1 0x04000000 /* map reg disable bit 0 */ 142 #define UBACR_IFS 0x00000040 /* interrupt field switch */ 143 #define UBACR_BRIE 0x00000020 /* BR interrupt enable */ 144 #define UBACR_USEFIE 0x00000010 /* UNIBUS to SBI error field IE */ 145 #define UBACR_SUEFIE 0x00000008 /* SBI to UNIBUS error field IE */ 146 #define UBACR_CNFIE 0x00000004 /* configuration IE */ 147 #define UBACR_UPF 0x00000002 /* UNIBUS power fail */ 148 #define UBACR_ADINIT 0x00000001 /* adapter init */ 149 150 /* uba_sr */ 151 #define UBASR_BR7FULL 0x08000000 /* BR7 receive vector reg full */ 152 #define UBASR_BR6FULL 0x04000000 /* BR6 receive vector reg full */ 153 #define UBASR_BR5FULL 0x02000000 /* BR5 receive vector reg full */ 154 #define UBASR_BR4FULL 0x01000000 /* BR4 receive vector reg full */ 155 #define UBASR_RDTO 0x00000400 /* UNIBUS to SBI read data timeout */ 156 #define UBASR_RDS 0x00000200 /* read data substitute */ 157 #define UBASR_CRD 0x00000100 /* corrected read data */ 158 #define UBASR_CXTER 0x00000080 /* command transmit error */ 159 #define UBASR_CXTMO 0x00000040 /* command transmit timeout */ 160 #define UBASR_DPPE 0x00000020 /* data path parity error */ 161 #define UBASR_IVMR 0x00000010 /* invalid map register */ 162 #define UBASR_MRPF 0x00000008 /* map register parity failure */ 163 #define UBASR_LEB 0x00000004 /* lost error */ 164 #define UBASR_UBSTO 0x00000002 /* UNIBUS select timeout */ 165 #define UBASR_UBSSYNTO 0x00000001 /* UNIBUS slave sync timeout */ 166 167 #define UBASR_BITS \ 168 "\20\13RDTO\12RDS\11CRD\10CXTER\7CXTMO\6DPPE\5IVMR\4MRPF\3LEB\2UBSTO\1UBSSYNTO" 169 170 /* uba_brrvr[] */ 171 #define UBABRRVR_AIRI 0x80000000 /* adapter interrupt request */ 172 #define UBABRRVR_DIV 0x0000ffff /* device interrupt vector field */ 173 #endif 174 175 /* uba_dpr */ 176 #ifdef DW780 177 #define UBADPR_BNE 0x80000000 /* buffer not empty - purge */ 178 #define UBADPR_BTE 0x40000000 /* buffer transfer error */ 179 #define UBADPR_DPF 0x20000000 /* DP function (RO) */ 180 #define UBADPR_BS 0x007f0000 /* buffer state field */ 181 #define UBADPR_BUBA 0x0000ffff /* buffered UNIBUS address */ 182 #define UBA_PURGE780(uba, bdp) \ 183 ((uba)->uba_dpr[bdp] |= UBADPR_BNE) 184 #else 185 #define UBA_PURGE780(uba, bdp) 186 #endif 187 #ifdef DW750 188 #define UBADPR_ERROR 0x80000000 /* error occurred */ 189 #define UBADPR_NXM 0x40000000 /* nxm from memory */ 190 #define UBADPR_UCE 0x20000000 /* uncorrectable error */ 191 #define UBADPR_PURGE 0x00000001 /* purge bdp */ 192 /* the DELAY is for a hardware problem */ 193 #define UBA_PURGE750(uba, bdp) { \ 194 ((uba)->uba_dpr[bdp] |= (UBADPR_PURGE|UBADPR_NXM|UBADPR_UCE)); \ 195 DELAY(8); \ 196 } 197 #else 198 #define UBA_PURGE750(uba, bdp) 199 #endif 200 201 /* 202 * Macros for fast buffered data path purging in time-critical routines. 203 * 204 * Too bad C pre-processor doesn't have the power of LISP in macro 205 * expansion... 206 */ 207 208 /* THIS IS WRONG, should use pointer to uba_hd */ 209 #if DWBUA || DW780 || DW750 210 #define UBAPURGE(uba, bdp) { \ 211 switch (cpu) { \ 212 case VAX_8200: UBA_PURGEBUA(uba, bdp); break; \ 213 case VAX_8600: case VAX_780: UBA_PURGE780((uba), (bdp)); break; \ 214 case VAX_750: UBA_PURGE750((uba), (bdp)); break; \ 215 } \ 216 } 217 #else 218 #define UBAPURGE(uba, bdp) 219 #endif 220 221 222 223 /* uba_mr[] */ 224 #define UBAMR_MRV 0x80000000 /* map register valid */ 225 #define UBAMR_BO 0x02000000 /* byte offset bit */ 226 #define UBAMR_DPDB 0x01e00000 /* data path designator field */ 227 #define UBAMR_SBIPFN 0x001fffff /* SBI page address field */ 228 229 #define UBAMR_DPSHIFT 21 /* shift to data path designator */ 230 231 /* 232 * Number of unibus buffered data paths and possible uba's per cpu type. 233 */ 234 #define NBDP8600 15 235 #define NBDP780 15 236 #define NBDPBUA 5 237 #define NBDP750 3 238 #define NBDP730 0 239 #define MAXNBDP 15 240 241 /* 242 * Symbolic BUS addresses for UBAs. 243 */ 244 245 #if VAX630 || VAX650 246 #define QBAMAP630 ((struct pte *)0x20088000) 247 #define QMEM630 0x30000000 248 #define QIOPAGE630 0x20000000 249 /* 250 * Q-bus control registers 251 */ 252 #define QIPCR 0x1f40 /* from start of iopage */ 253 /* bits in QIPCR */ 254 #define Q_DBIRQ 0x0001 /* doorbell interrupt request */ 255 #define Q_LMEAE 0x0020 /* local mem external access enable */ 256 #define Q_DBIIE 0x0040 /* doorbell interrupt enable */ 257 #define Q_AUXHLT 0x0100 /* auxiliary processor halt */ 258 #define Q_DMAQPE 0x8000 /* Q22 bus address space parity error */ 259 #endif 260 261 #if VAX730 262 #define UMEM730 0xfc0000 263 #endif 264 265 #if VAX750 266 #define UMEM750(i) (0xfc0000-(i)*0x40000) 267 #endif 268 269 #if VAX780 270 #define UMEM780(i) (0x20100000+(i)*0x40000) 271 #endif 272 273 #if VAX8200 /* BEWARE, argument is node, not ubanum */ 274 #define UMEM8200(i) (0x20400000+(i)*0x40000) 275 #endif 276 277 #if VAX8600 278 #define UMEMA8600(i) (0x20100000+(i)*0x40000) 279 #define UMEMB8600(i) (0x22100000+(i)*0x40000) 280 #endif 281 282 /* 283 * Macro to offset a UNIBUS device address, often expressed as 284 * something like 0172520, by forcing it into the last 8K 285 * of UNIBUS memory space. 286 */ 287 #define ubdevreg(addr) ((addr) & 017777) 288