uba_sbi.c revision 1.24.4.1
1 /* $NetBSD: uba_sbi.c,v 1.24.4.1 2009/05/04 08:12:04 yamt Exp $ */ 2 /* 3 * Copyright (c) 1982, 1986 The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)uba.c 7.10 (Berkeley) 12/16/90 31 * @(#)autoconf.c 7.20 (Berkeley) 5/9/91 32 */ 33 34 /* 35 * Copyright (c) 1996 Jonathan Stone. 36 * Copyright (c) 1994, 1996 Ludd, University of Lule}, Sweden. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. All advertising materials mentioning features or use of this software 47 * must display the following acknowledgement: 48 * This product includes software developed by the University of 49 * California, Berkeley and its contributors. 50 * 4. Neither the name of the University nor the names of its contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 * 66 * @(#)uba.c 7.10 (Berkeley) 12/16/90 67 * @(#)autoconf.c 7.20 (Berkeley) 5/9/91 68 */ 69 70 #include <sys/cdefs.h> 71 __KERNEL_RCSID(0, "$NetBSD: uba_sbi.c,v 1.24.4.1 2009/05/04 08:12:04 yamt Exp $"); 72 73 #include <sys/param.h> 74 #include <sys/device.h> 75 #include <sys/systm.h> 76 #include <sys/kernel.h> 77 78 #define _VAX_BUS_DMA_PRIVATE 79 #include <machine/bus.h> 80 #include <machine/mtpr.h> 81 #include <machine/nexus.h> 82 #include <machine/cpu.h> 83 #include <machine/sgmap.h> 84 #include <machine/scb.h> 85 86 #include <dev/qbus/ubavar.h> 87 88 #include <vax/uba/uba_common.h> 89 90 #include "locators.h" 91 #include "ioconf.h" 92 93 /* Some SBI-specific defines */ 94 #define UBASIZE (UBAPAGES * VAX_NBPG) 95 #define UMEMA8600(i) (0x20100000+(i)*0x40000) 96 #define UMEMB8600(i) (0x22100000+(i)*0x40000) 97 98 /* 99 * Some status registers. 100 */ 101 #define UBACNFGR_UBIC 0x00010000 /* unibus init complete */ 102 #define UBACNFGR_BITS \ 103 "\40\40PARFLT\37WSQFLT\36URDFLT\35ISQFLT\34MXTFLT\33XMTFLT\30ADPDN\27ADPUP\23UBINIT\22UBPDN\21UBIC" 104 105 #define UBACR_IFS 0x00000040 /* interrupt field switch */ 106 #define UBACR_BRIE 0x00000020 /* BR interrupt enable */ 107 #define UBACR_USEFIE 0x00000010 /* UNIBUS to SBI error field IE */ 108 #define UBACR_SUEFIE 0x00000008 /* SBI to UNIBUS error field IE */ 109 #define UBACR_ADINIT 0x00000001 /* adapter init */ 110 111 #define UBADPR_BNE 0x80000000 /* buffer not empty - purge */ 112 113 #define UBABRRVR_DIV 0x0000ffff /* device interrupt vector field */ 114 115 #define UBASR_BITS \ 116 "\20\13RDTO\12RDS\11CRD\10CXTER\7CXTMO\6DPPE\5IVMR\4MRPF\3LEB\2UBSTO\1UBSSYNTO" 117 118 const char ubasr_bits[] = UBASR_BITS; 119 120 /* 121 * The DW780 are directly connected to the SBI on 11/780 and 8600. 122 */ 123 static int dw780_match(device_t, cfdata_t, void *); 124 static void dw780_attach(device_t, device_t, void *); 125 static void dw780_init(struct uba_softc*); 126 static void dw780_beforescan(struct uba_softc *); 127 static void dw780_afterscan(struct uba_softc *); 128 static int dw780_errchk(struct uba_softc *); 129 static inline void uba_dw780int_common(void *, int); 130 static void uba_dw780int_0x14(void *); 131 static void uba_dw780int_0x15(void *); 132 static void uba_dw780int_0x16(void *); 133 static void uba_dw780int_0x17(void *); 134 static void ubaerror(struct uba_softc *, int *, int *); 135 #ifdef notyet 136 static void dw780_purge(struct uba_softc *, int); 137 #endif 138 139 CFATTACH_DECL_NEW(uba_sbi, sizeof(struct uba_vsoftc), 140 dw780_match, dw780_attach, NULL, NULL); 141 142 static struct evcnt strayint = EVCNT_INITIALIZER(EVCNT_TYPE_INTR, NULL, "uba","stray intr"); 143 static int strayinit = 0; 144 145 extern struct vax_bus_space vax_mem_bus_space; 146 147 int 148 dw780_match(device_t parent, cfdata_t cf, void *aux) 149 { 150 struct sbi_attach_args * const sa = aux; 151 152 if (cf->cf_loc[SBICF_TR] != sa->sa_nexnum && 153 cf->cf_loc[SBICF_TR] != SBICF_TR_DEFAULT) 154 return 0; 155 /* 156 * The uba type is actually only telling where the uba 157 * space is in nexus space. 158 */ 159 if ((sa->sa_type & ~3) != NEX_UBA0) 160 return 0; 161 162 return 1; 163 } 164 165 void 166 dw780_attach(device_t parent, device_t self, void *aux) 167 { 168 struct uba_vsoftc * const sc = device_private(self); 169 struct sbi_attach_args * const sa = aux; 170 int ubaddr = sa->sa_type & 3; 171 172 aprint_normal(": DW780\n"); 173 174 /* 175 * Fill in bus specific data. 176 */ 177 sc->uv_sc.uh_dev = self; 178 sc->uv_sc.uh_ubainit = dw780_init; 179 #ifdef notyet 180 sc->uv_sc.uh_ubapurge = dw780_purge; 181 #endif 182 sc->uv_sc.uh_beforescan = dw780_beforescan; 183 sc->uv_sc.uh_afterscan = dw780_afterscan; 184 sc->uv_sc.uh_errchk = dw780_errchk; 185 sc->uv_sc.uh_iot = sa->sa_iot; 186 sc->uv_sc.uh_dmat = &sc->uv_dmat; 187 sc->uv_sc.uh_nr = ubaddr; 188 sc->uv_uba = (void *)sa->sa_ioh; 189 sc->uh_ibase = VAX_NBPG + ubaddr * VAX_NBPG; 190 sc->uv_sc.uh_type = UBA_UBA; 191 192 if (strayinit++ == 0) evcnt_attach_static(&strayint); /* Setup stray 193 interrupt 194 counter. */ 195 196 /* 197 * Set up dispatch vectors for DW780. 198 */ 199 #define SCB_VECALLOC_DW780(br) \ 200 scb_vecalloc(vecnum(0, br, sa->sa_nexnum), uba_dw780int_ ## br, \ 201 sc, SCB_ISTACK, &sc->uv_sc.uh_intrcnt) \ 202 203 SCB_VECALLOC_DW780(0x14); 204 SCB_VECALLOC_DW780(0x15); 205 SCB_VECALLOC_DW780(0x16); 206 SCB_VECALLOC_DW780(0x17); 207 208 evcnt_attach_dynamic(&sc->uv_sc.uh_intrcnt, EVCNT_TYPE_INTR, NULL, 209 device_xname(sc->uv_sc.uh_dev), "intr"); 210 211 /* 212 * Fill in variables used by the sgmap system. 213 */ 214 sc->uv_size = UBASIZE; /* Size in bytes of Unibus space */ 215 216 uba_dma_init(sc); 217 uba_attach(&sc->uv_sc, (sa->sa_sbinum ? UMEMB8600(ubaddr) : 218 UMEMA8600(ubaddr)) + (UBAPAGES * VAX_NBPG)); 219 } 220 221 void 222 dw780_beforescan(struct uba_softc *sc) 223 { 224 struct uba_vsoftc * const vc = (void *)sc; 225 volatile int *hej = &vc->uv_uba->uba_sr; 226 227 *hej = *hej; 228 vc->uv_uba->uba_cr = UBACR_IFS|UBACR_BRIE; 229 } 230 231 void 232 dw780_afterscan(struct uba_softc *sc) 233 { 234 struct uba_vsoftc * const vc = (void *)sc; 235 236 vc->uv_uba->uba_cr = UBACR_IFS | UBACR_BRIE | 237 UBACR_USEFIE | UBACR_SUEFIE | 238 (vc->uv_uba->uba_cr & 0x7c000000); 239 } 240 241 242 int 243 dw780_errchk(struct uba_softc *sc) 244 { 245 struct uba_vsoftc * const vc = (void *)sc; 246 volatile int *hej = &vc->uv_uba->uba_sr; 247 248 if (*hej) { 249 *hej = *hej; 250 return 1; 251 } 252 return 0; 253 } 254 255 static inline void 256 uba_dw780int_common(void *arg, int br) 257 { 258 extern void scb_stray(void *); 259 struct uba_vsoftc *vc = arg; 260 struct uba_regs *ur = vc->uv_uba; 261 struct ivec_dsp *ivec; 262 struct evcnt *uvec; 263 int vec; 264 265 uvec = &vc->uv_sc.uh_intrcnt; 266 vec = ur->uba_brrvr[br - 0x14]; 267 if (vec <= 0) { 268 ubaerror(&vc->uv_sc, &br, &vec); 269 if (vec == 0) 270 return; 271 } 272 273 uvec->ev_count--; /* This interrupt should not be counted against 274 the uba. */ 275 ivec = &scb_vec[(vc->uh_ibase + vec)/4]; 276 if (cold && *ivec->hoppaddr == scb_stray) { 277 scb_fake(vec + vc->uh_ibase, br); 278 } else { 279 if (*ivec->hoppaddr == scb_stray) 280 strayint.ev_count++; /* Count against stray int */ 281 else 282 ivec->ev->ev_count++; /* Count against device */ 283 (*ivec->hoppaddr)(ivec->pushlarg); 284 } 285 } 286 287 #define UBA_DW780INT(br) \ 288 void \ 289 uba_dw780int_ ## br(void *arg) \ 290 { \ 291 uba_dw780int_common(arg, br); \ 292 } \ 293 294 UBA_DW780INT(0x14); 295 UBA_DW780INT(0x15); 296 UBA_DW780INT(0x16); 297 UBA_DW780INT(0x17); 298 299 void 300 dw780_init(struct uba_softc *sc) 301 { 302 struct uba_vsoftc *vc = (void *)sc; 303 304 vc->uv_uba->uba_cr = UBACR_ADINIT; 305 vc->uv_uba->uba_cr = UBACR_IFS|UBACR_BRIE|UBACR_USEFIE|UBACR_SUEFIE; 306 while ((vc->uv_uba->uba_cnfgr & UBACNFGR_UBIC) == 0) 307 ; 308 } 309 310 #ifdef notyet 311 void 312 dw780_purge(struct uba_softc *sc, int bdp) 313 { 314 struct uba_vsoftc *vc = (void *)sc; 315 316 vc->uv_uba->uba_dpr[bdp] |= UBADPR_BNE; 317 } 318 #endif 319 320 int ubawedgecnt = 10; 321 int ubacrazy = 500; 322 int zvcnt_max = 5000; /* in 8 sec */ 323 int ubaerrcnt; 324 /* 325 * This routine is called by the locore code to process a UBA 326 * error on an 11/780 or 8600. The arguments are passed 327 * on the stack, and value-result (through some trickery). 328 * In particular, the uvec argument is used for further 329 * uba processing so the result aspect of it is very important. 330 */ 331 /*ARGSUSED*/ 332 void 333 ubaerror(struct uba_softc *uh, int *ipl, int *uvec) 334 { 335 struct uba_vsoftc *vc = (void *)uh; 336 struct uba_regs *uba = vc->uv_uba; 337 int sr, s; 338 char sbuf[256], sbuf2[256]; 339 340 if (*uvec == 0) { 341 /* 342 * Declare dt as unsigned so that negative values 343 * are handled as >8 below, in case time was set back. 344 */ 345 u_long dt = time_second - vc->uh_zvtime; 346 347 vc->uh_zvtotal++; 348 if (dt > 8) { 349 vc->uh_zvtime = time_second; 350 vc->uh_zvcnt = 0; 351 } 352 if (++vc->uh_zvcnt > zvcnt_max) { 353 aprint_error_dev(vc->uv_sc.uh_dev, 354 "too many zero vectors (%d in <%d sec)\n", 355 vc->uh_zvcnt, (int)dt + 1); 356 357 snprintb(sbuf, sizeof(sbuf), UBACNFGR_BITS, 358 uba->uba_cnfgr & ~0xff); 359 aprint_error( 360 "\tIPL 0x%x\n" 361 "\tcnfgr: %s\tAdapter Code: 0x%x\n", 362 *ipl, sbuf, uba->uba_cnfgr&0xff); 363 364 snprintb(sbuf, sizeof(sbuf), ubasr_bits, uba->uba_sr); 365 aprint_error( 366 "\tsr: %s\n" 367 "\tdcr: %x (MIC %sOK)\n", 368 sbuf, uba->uba_dcr, 369 (uba->uba_dcr&0x8000000)?"":"NOT "); 370 371 ubareset(&vc->uv_sc); 372 } 373 return; 374 } 375 if (uba->uba_cnfgr & NEX_CFGFLT) { 376 snprintb(sbuf, sizeof(sbuf), ubasr_bits, uba->uba_sr); 377 snprintb(sbuf2, sizeof(sbuf2), NEXFLT_BITS, uba->uba_cnfgr); 378 aprint_error_dev(vc->uv_sc.uh_dev, 379 "sbi fault sr=%s cnfgr=%s\n", sbuf, sbuf2); 380 ubareset(&vc->uv_sc); 381 *uvec = 0; 382 return; 383 } 384 sr = uba->uba_sr; 385 s = spluba(); 386 snprintb(sbuf, sizeof(sbuf), ubasr_bits, uba->uba_sr); 387 aprint_error_dev(vc->uv_sc.uh_dev, 388 "uba error sr=%s fmer=%x fubar=%o\n", 389 sbuf, uba->uba_fmer, 4*uba->uba_fubar); 390 splx(s); 391 uba->uba_sr = sr; 392 *uvec &= UBABRRVR_DIV; 393 if (++ubaerrcnt % ubawedgecnt == 0) { 394 if (ubaerrcnt > ubacrazy) 395 panic("uba crazy"); 396 printf("ERROR LIMIT "); 397 ubareset(&vc->uv_sc); 398 *uvec = 0; 399 } 400 } 401
Indexes created Wed Oct 22 06:10:02 GMT 2025