1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "@(#)pcisch.c 1.93 07/03/27 SMI" 27 28 /* 29 * Schizo specifics implementation: 30 * interrupt mapping register 31 * PBM configuration 32 * ECC and PBM error handling 33 * Iommu mapping handling 34 * Streaming Cache flushing 35 */ 36 37 #include <sys/types.h> 38 #include <sys/kmem.h> 39 #include <sys/sysmacros.h> 40 #include <sys/async.h> 41 #include <sys/systm.h> 42 #include <sys/ivintr.h> 43 #include <sys/machsystm.h> /* lddphys() */ 44 #include <sys/machsystm.h> /* lddphys, intr_dist_add */ 45 #include <sys/iommutsb.h> 46 #include <sys/promif.h> /* prom_printf */ 47 #include <sys/map.h> 48 #include <sys/ddi.h> 49 #include <sys/sunddi.h> 50 #include <sys/sunndi.h> 51 #include <sys/spl.h> 52 #include <sys/fm/util.h> 53 #include <sys/ddi_impldefs.h> 54 #include <sys/fm/protocol.h> 55 #include <sys/fm/io/sun4upci.h> 56 #include <sys/fm/io/ddi.h> 57 #include <sys/fm/io/pci.h> 58 #include <sys/pci/pci_obj.h> 59 #include <sys/pci/pcisch.h> 60 #include <sys/pci/pcisch_asm.h> 61 #include <sys/x_call.h> /* XCALL_PIL */ 62 63 /*LINTLIBRARY*/ 64 65 extern uint8_t ldstub(uint8_t *); 66 67 #define IOMMU_CTX_BITMAP_SIZE (1 << (12 - 3)) 68 static void iommu_ctx_free(iommu_t *); 69 static int iommu_tlb_scrub(iommu_t *, int); 70 static uint32_t pci_identity_init(pci_t *); 71 72 static void pci_cb_clear_error(cb_t *, cb_errstate_t *); 73 static void pci_clear_error(pci_t *, pbm_errstate_t *); 74 static uint32_t pci_identity_init(pci_t *pci_p); 75 static int pci_intr_setup(pci_t *pci_p); 76 static void iommu_ereport_post(dev_info_t *, uint64_t, pbm_errstate_t *); 77 static void cb_ereport_post(dev_info_t *, uint64_t, cb_errstate_t *); 78 static void pcix_ereport_post(dev_info_t *, uint64_t, pbm_errstate_t *); 79 static void pci_format_ecc_addr(dev_info_t *dip, uint64_t *afar, 80 ecc_region_t region); 81 static void pci_pbm_errstate_get(pci_t *pci_p, pbm_errstate_t *pbm_err_p); 82 static void tm_vmem_free(ddi_dma_impl_t *mp, iommu_t *iommu_p, 83 dvma_addr_t dvma_pg, int npages); 84 85 static int pcix_ma_behind_bridge(pbm_errstate_t *pbm_err_p); 86 87 static pci_ksinfo_t *pci_name_kstat; 88 static pci_ksinfo_t *saf_name_kstat; 89 90 extern void pcix_set_cmd_reg(dev_info_t *child, uint16_t value); 91 92 /* called by pci_attach() DDI_ATTACH to initialize pci objects */ 93 int 94 pci_obj_setup(pci_t *pci_p) 95 { 96 pci_common_t *cmn_p; 97 uint32_t chip_id = pci_identity_init(pci_p); 98 uint32_t cmn_id = PCI_CMN_ID(ID_CHIP_TYPE(chip_id), pci_p->pci_id); 99 int ret; 100 101 /* Perform allocations first to avoid delicate unwinding. */ 102 if (pci_alloc_tsb(pci_p) != DDI_SUCCESS) 103 return (DDI_FAILURE); 104 105 mutex_enter(&pci_global_mutex); 106 cmn_p = get_pci_common_soft_state(cmn_id); 107 if (cmn_p == NULL) { 108 if (alloc_pci_common_soft_state(cmn_id) != DDI_SUCCESS) { 109 mutex_exit(&pci_global_mutex); 110 pci_free_tsb(pci_p); 111 return (DDI_FAILURE); 112 } 113 cmn_p = get_pci_common_soft_state(cmn_id); 114 cmn_p->pci_common_id = cmn_id; 115 cmn_p->pci_common_tsb_cookie = IOMMU_TSB_COOKIE_NONE; 116 } 117 118 ASSERT((pci_p->pci_side == 0) || (pci_p->pci_side == 1)); 119 if (cmn_p->pci_p[pci_p->pci_side]) { 120 /* second side attach */ 121 pci_p->pci_side = PCI_OTHER_SIDE(pci_p->pci_side); 122 ASSERT(cmn_p->pci_p[pci_p->pci_side] == NULL); 123 } 124 125 cmn_p->pci_p[pci_p->pci_side] = pci_p; 126 pci_p->pci_common_p = cmn_p; 127 128 if (cmn_p->pci_common_refcnt == 0) 129 cmn_p->pci_chip_id = chip_id; 130 131 ib_create(pci_p); 132 133 /* 134 * The initialization of cb internal interrupts depends on ib 135 */ 136 if (cmn_p->pci_common_refcnt == 0) { 137 cb_create(pci_p); 138 cmn_p->pci_common_cb_p = pci_p->pci_cb_p; 139 } else 140 pci_p->pci_cb_p = cmn_p->pci_common_cb_p; 141 142 iommu_create(pci_p); 143 144 if (cmn_p->pci_common_refcnt == 0) { 145 ecc_create(pci_p); 146 cmn_p->pci_common_ecc_p = pci_p->pci_ecc_p; 147 } else 148 pci_p->pci_ecc_p = cmn_p->pci_common_ecc_p; 149 150 pbm_create(pci_p); 151 sc_create(pci_p); 152 153 pci_fm_create(pci_p); 154 155 if ((ret = pci_intr_setup(pci_p)) != DDI_SUCCESS) 156 goto done; 157 158 pci_kstat_create(pci_p); 159 160 cmn_p->pci_common_attachcnt++; 161 cmn_p->pci_common_refcnt++; 162 done: 163 mutex_exit(&pci_global_mutex); 164 if (ret != DDI_SUCCESS) 165 cmn_err(CE_WARN, "pci_obj_setup failed %x", ret); 166 return (ret); 167 } 168 169 /* called by pci_detach() DDI_DETACH to destroy pci objects */ 170 void 171 pci_obj_destroy(pci_t *pci_p) 172 { 173 pci_common_t *cmn_p; 174 mutex_enter(&pci_global_mutex); 175 176 cmn_p = pci_p->pci_common_p; 177 cmn_p->pci_common_refcnt--; 178 cmn_p->pci_common_attachcnt--; 179 180 pci_kstat_destroy(pci_p); 181 182 /* schizo non-shared objects */ 183 pci_fm_destroy(pci_p); 184 185 sc_destroy(pci_p); 186 pbm_destroy(pci_p); 187 iommu_destroy(pci_p); 188 ib_destroy(pci_p); 189 190 if (cmn_p->pci_common_refcnt != 0) { 191 pci_intr_teardown(pci_p); 192 cmn_p->pci_p[pci_p->pci_side] = NULL; 193 mutex_exit(&pci_global_mutex); 194 return; 195 } 196 197 /* schizo shared objects - uses cmn_p, must be destroyed before cmn */ 198 ecc_destroy(pci_p); 199 cb_destroy(pci_p); 200 201 free_pci_common_soft_state(cmn_p->pci_common_id); 202 pci_intr_teardown(pci_p); 203 mutex_exit(&pci_global_mutex); 204 } 205 206 /* called by pci_attach() DDI_RESUME to (re)initialize pci objects */ 207 void 208 pci_obj_resume(pci_t *pci_p) 209 { 210 pci_common_t *cmn_p = pci_p->pci_common_p; 211 212 mutex_enter(&pci_global_mutex); 213 214 ib_configure(pci_p->pci_ib_p); 215 iommu_configure(pci_p->pci_iommu_p); 216 217 if (cmn_p->pci_common_attachcnt == 0) 218 ecc_configure(pci_p); 219 220 ib_resume(pci_p->pci_ib_p); 221 222 pbm_configure(pci_p->pci_pbm_p); 223 sc_configure(pci_p->pci_sc_p); 224 225 if (cmn_p->pci_common_attachcnt == 0) 226 cb_resume(pci_p->pci_cb_p); 227 228 pbm_resume(pci_p->pci_pbm_p); 229 230 cmn_p->pci_common_attachcnt++; 231 mutex_exit(&pci_global_mutex); 232 } 233 234 /* called by pci_detach() DDI_SUSPEND to suspend pci objects */ 235 void 236 pci_obj_suspend(pci_t *pci_p) 237 { 238 mutex_enter(&pci_global_mutex); 239 240 pbm_suspend(pci_p->pci_pbm_p); 241 ib_suspend(pci_p->pci_ib_p); 242 243 if (!--pci_p->pci_common_p->pci_common_attachcnt) 244 cb_suspend(pci_p->pci_cb_p); 245 246 mutex_exit(&pci_global_mutex); 247 } 248 249 /* 250 * add an additional 0x35 or 0x36 ino interrupt on platforms don't have them 251 * This routine has multiple places that assumes interrupt takes one cell 252 * each and cell size is same as integer size. 253 */ 254 static int 255 pci_intr_setup(pci_t *pci_p) 256 { 257 dev_info_t *dip = pci_p->pci_dip; 258 pbm_t *pbm_p = pci_p->pci_pbm_p; 259 cb_t *cb_p = pci_p->pci_cb_p; 260 uint32_t *intr_buf, *new_intr_buf; 261 int intr_len, intr_cnt, ret; 262 263 if (ddi_getlongprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, 264 "interrupts", (caddr_t)&intr_buf, &intr_len) != DDI_SUCCESS) 265 cmn_err(CE_PANIC, "%s%d: no interrupts property\n", 266 ddi_driver_name(dip), ddi_get_instance(dip)); 267 268 intr_cnt = BYTES_TO_1275_CELLS(intr_len); 269 if (intr_cnt < CBNINTR_CDMA) /* CBNINTR_CDMA is 0 based */ 270 cmn_err(CE_PANIC, "%s%d: <%d interrupts", ddi_driver_name(dip), 271 ddi_get_instance(dip), CBNINTR_CDMA); 272 273 if (intr_cnt == CBNINTR_CDMA) 274 intr_cnt++; 275 276 new_intr_buf = kmem_alloc(CELLS_1275_TO_BYTES(intr_cnt), KM_SLEEP); 277 bcopy(intr_buf, new_intr_buf, intr_len); 278 kmem_free(intr_buf, intr_len); 279 280 new_intr_buf[CBNINTR_CDMA] = PBM_CDMA_INO_BASE + pci_p->pci_side; 281 pci_p->pci_inos = new_intr_buf; 282 pci_p->pci_inos_len = CELLS_1275_TO_BYTES(intr_cnt); 283 284 if (ndi_prop_update_int_array(DDI_DEV_T_NONE, dip, "interrupts", 285 (int *)new_intr_buf, intr_cnt)) 286 cmn_err(CE_PANIC, "%s%d: cannot update interrupts property\n", 287 ddi_driver_name(dip), ddi_get_instance(dip)); 288 289 if (pci_p->pci_common_p->pci_common_refcnt == 0) { 290 cb_p->cb_no_of_inos = intr_cnt; 291 if (ret = cb_register_intr(pci_p)) 292 goto teardown; 293 if (ret = ecc_register_intr(pci_p)) 294 goto teardown; 295 296 intr_dist_add(cb_intr_dist, cb_p); 297 cb_enable_intr(pci_p); 298 ecc_enable_intr(pci_p); 299 } 300 301 if (CHIP_TYPE(pci_p) != PCI_CHIP_SCHIZO) 302 pbm_p->pbm_sync_ino = pci_p->pci_inos[CBNINTR_PBM]; 303 if (ret = pbm_register_intr(pbm_p)) { 304 if (pci_p->pci_common_p->pci_common_refcnt == 0) 305 intr_dist_rem(cb_intr_dist, cb_p); 306 goto teardown; 307 } 308 intr_dist_add(pbm_intr_dist, pbm_p); 309 ib_intr_enable(pci_p, pci_p->pci_inos[CBNINTR_PBM]); 310 ib_intr_enable(pci_p, pci_p->pci_inos[CBNINTR_CDMA]); 311 312 intr_dist_add_weighted(ib_intr_dist_all, pci_p->pci_ib_p); 313 return (DDI_SUCCESS); 314 teardown: 315 pci_intr_teardown(pci_p); 316 return (ret); 317 } 318 319 uint64_t 320 pci_sc_configure(pci_t *pci_p) 321 { 322 int instance; 323 dev_info_t *dip = pci_p->pci_dip; 324 325 instance = ddi_get_instance(dip); 326 if ((pci_xmits_sc_max_prf & (1 << instance)) && 327 (CHIP_TYPE(pci_p) == PCI_CHIP_XMITS)) 328 return (XMITS_SC_MAX_PRF); 329 else 330 return (0); 331 } 332 333 static void 334 pci_schizo_cdma_sync(pbm_t *pbm_p) 335 { 336 pci_t *pci_p = pbm_p->pbm_pci_p; 337 hrtime_t start_time; 338 volatile uint64_t *clr_p = ib_clear_intr_reg_addr(pci_p->pci_ib_p, 339 pci_p->pci_inos[CBNINTR_CDMA]); 340 uint32_t fail_cnt = pci_cdma_intr_count; 341 342 mutex_enter(&pbm_p->pbm_sync_mutex); 343 #ifdef PBM_CDMA_DEBUG 344 pbm_p->pbm_cdma_req_cnt++; 345 #endif /* PBM_CDMA_DEBUG */ 346 pbm_p->pbm_cdma_flag = PBM_CDMA_PEND; 347 IB_INO_INTR_TRIG(clr_p); 348 wait: 349 start_time = gethrtime(); 350 while (pbm_p->pbm_cdma_flag != PBM_CDMA_DONE) { 351 if (gethrtime() - start_time <= pci_cdma_intr_timeout) 352 continue; 353 if (--fail_cnt > 0) 354 goto wait; 355 if (pbm_p->pbm_cdma_flag == PBM_CDMA_DONE) 356 break; 357 cmn_err(CE_PANIC, "%s (%s): consistent dma sync timeout", 358 pbm_p->pbm_nameinst_str, pbm_p->pbm_nameaddr_str); 359 } 360 #ifdef PBM_CDMA_DEBUG 361 if (pbm_p->pbm_cdma_flag != PBM_CDMA_DONE) 362 pbm_p->pbm_cdma_to_cnt++; 363 else { 364 start_time = gethrtime() - start_time; 365 pbm_p->pbm_cdma_success_cnt++; 366 pbm_p->pbm_cdma_latency_sum += start_time; 367 if (start_time > pbm_p->pbm_cdma_latency_max) 368 pbm_p->pbm_cdma_latency_max = start_time; 369 } 370 #endif /* PBM_CDMA_DEBUG */ 371 mutex_exit(&pbm_p->pbm_sync_mutex); 372 } 373 374 #if !defined(lint) 375 #include <sys/cpuvar.h> 376 #endif 377 378 #define SYNC_HW_BUSY(pa, mask) (lddphysio(pa) & (mask)) 379 380 /* 381 * Consistent DMA Sync/Flush 382 * 383 * XMITS and Tomatillo use multi-threaded sync/flush register. 384 * Called from interrupt wrapper: the associated ino is used to index 385 * the distinctive register bit. 386 * Called from pci_dma_sync(): the bit belongs to PBM is shared 387 * for all calls from pci_dma_sync(). Xmits requires serialization 388 * while Tomatillo does not. 389 */ 390 void 391 pci_pbm_dma_sync(pbm_t *pbm_p, ib_ino_t ino) 392 { 393 pci_t *pci_p = pbm_p->pbm_pci_p; 394 hrtime_t start_time; 395 uint64_t ino_mask, sync_reg_pa; 396 volatile uint64_t flag_val; 397 uint32_t locked, chip_type = CHIP_TYPE(pci_p); 398 int i; 399 400 if (chip_type == PCI_CHIP_SCHIZO) { 401 pci_schizo_cdma_sync(pbm_p); 402 return; 403 } 404 405 sync_reg_pa = pbm_p->pbm_sync_reg_pa; 406 407 locked = 0; 408 if (((chip_type == PCI_CHIP_XMITS) && (ino == pbm_p->pbm_sync_ino)) || 409 pci_sync_lock) { 410 locked = 1; 411 mutex_enter(&pbm_p->pbm_sync_mutex); 412 } 413 ino_mask = 1ull << ino; 414 stdphysio(sync_reg_pa, ino_mask); 415 416 for (i = 0; i < 5; i++) { 417 if ((flag_val = SYNC_HW_BUSY(sync_reg_pa, ino_mask)) == 0) 418 goto done; 419 } 420 421 start_time = gethrtime(); 422 for (; (flag_val = SYNC_HW_BUSY(sync_reg_pa, ino_mask)) != 0; i++) { 423 if (gethrtime() - start_time > pci_sync_buf_timeout) 424 break; 425 } 426 427 if (flag_val && SYNC_HW_BUSY(sync_reg_pa, ino_mask) && !panicstr) 428 cmn_err(CE_PANIC, "%s: pbm dma sync %lx,%lx timeout!", 429 pbm_p->pbm_nameaddr_str, sync_reg_pa, flag_val); 430 done: 431 /* optional: stdphysio(sync_reg_pa - 8, ino_mask); */ 432 if (locked) 433 mutex_exit(&pbm_p->pbm_sync_mutex); 434 435 if (tomatillo_store_store_wrka) { 436 #if !defined(lint) 437 kpreempt_disable(); 438 #endif 439 tomatillo_store_store_order(); 440 #if !defined(lint) 441 kpreempt_enable(); 442 #endif 443 } 444 445 } 446 447 /*ARGSUSED*/ 448 void 449 pci_fix_ranges(pci_ranges_t *rng_p, int rng_entries) 450 { 451 } 452 453 /* 454 * map_pci_registers 455 * 456 * This function is called from the attach routine to map the registers 457 * accessed by this driver. 458 * 459 * used by: pci_attach() 460 * 461 * return value: DDI_FAILURE on failure 462 */ 463 int 464 map_pci_registers(pci_t *pci_p, dev_info_t *dip) 465 { 466 ddi_device_acc_attr_t attr; 467 int len; 468 469 attr.devacc_attr_version = DDI_DEVICE_ATTR_V0; 470 attr.devacc_attr_dataorder = DDI_STRICTORDER_ACC; 471 472 attr.devacc_attr_endian_flags = DDI_NEVERSWAP_ACC; 473 474 /* 475 * Register set 0 is PCI CSR Base 476 */ 477 if (ddi_regs_map_setup(dip, 0, &pci_p->pci_address[0], 0, 0, 478 &attr, &pci_p->pci_ac[0]) != DDI_SUCCESS) { 479 len = 0; 480 goto fail; 481 } 482 /* 483 * Register set 1 is Schizo CSR Base 484 */ 485 if (ddi_regs_map_setup(dip, 1, &pci_p->pci_address[1], 0, 0, 486 &attr, &pci_p->pci_ac[1]) != DDI_SUCCESS) { 487 len = 1; 488 goto fail; 489 } 490 491 /* 492 * The third register set contains the bridge's configuration 493 * header. This header is at the very beginning of the bridge's 494 * configuration space. This space has litte-endian byte order. 495 */ 496 attr.devacc_attr_endian_flags = DDI_STRUCTURE_LE_ACC; 497 if (ddi_regs_map_setup(dip, 2, &pci_p->pci_address[2], 0, 498 PCI_CONF_HDR_SIZE, &attr, &pci_p->pci_ac[2]) != DDI_SUCCESS) { 499 len = 2; 500 goto fail; 501 } 502 503 if (ddi_getproplen(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, 504 "reg", &len) || (len / sizeof (pci_nexus_regspec_t) < 4)) 505 goto done; 506 507 /* 508 * The optional fourth register bank points to the 509 * interrupt concentrator registers. 510 */ 511 attr.devacc_attr_endian_flags = DDI_NEVERSWAP_ACC; 512 if (ddi_regs_map_setup(dip, 3, &pci_p->pci_address[3], 0, 513 0, &attr, &pci_p->pci_ac[3]) != DDI_SUCCESS) { 514 len = 3; 515 goto fail; 516 } 517 518 done: 519 DEBUG4(DBG_ATTACH, dip, "address (%p,%p,%p,%p)\n", 520 pci_p->pci_address[0], pci_p->pci_address[1], 521 pci_p->pci_address[2], pci_p->pci_address[3]); 522 523 return (DDI_SUCCESS); 524 525 526 fail: 527 cmn_err(CE_WARN, "%s%d: unable to map reg entry %d\n", 528 ddi_driver_name(dip), ddi_get_instance(dip), len); 529 for (; len--; ddi_regs_map_free(&pci_p->pci_ac[len])); 530 return (DDI_FAILURE); 531 } 532 533 /* 534 * unmap_pci_registers: 535 * 536 * This routine unmap the registers mapped by map_pci_registers. 537 * 538 * used by: pci_detach() 539 * 540 * return value: none 541 */ 542 void 543 unmap_pci_registers(pci_t *pci_p) 544 { 545 int i; 546 547 for (i = 0; i < 4; i++) { 548 if (pci_p->pci_ac[i]) 549 ddi_regs_map_free(&pci_p->pci_ac[i]); 550 } 551 } 552 553 uint64_t 554 ib_get_map_reg(ib_mondo_t mondo, uint32_t cpu_id) 555 { 556 uint32_t agent_id; 557 uint32_t node_id; 558 559 /* ensure that cpu_id is only 10 bits. */ 560 ASSERT((cpu_id & ~0x3ff) == 0); 561 562 agent_id = cpu_id & 0x1f; 563 node_id = (cpu_id >> 5) & 0x1f; 564 565 return ((mondo) | (agent_id << COMMON_INTR_MAP_REG_TID_SHIFT) | 566 (node_id << SCHIZO_INTR_MAP_REG_NID_SHIFT) | 567 COMMON_INTR_MAP_REG_VALID); 568 } 569 570 uint32_t 571 ib_map_reg_get_cpu(volatile uint64_t reg) 572 { 573 return (((reg & COMMON_INTR_MAP_REG_TID) >> 574 COMMON_INTR_MAP_REG_TID_SHIFT) | 575 ((reg & SCHIZO_INTR_MAP_REG_NID) >> 576 (SCHIZO_INTR_MAP_REG_NID_SHIFT-5))); 577 } 578 579 uint64_t * 580 ib_intr_map_reg_addr(ib_t *ib_p, ib_ino_t ino) 581 { 582 /* 583 * Schizo maps all interrupts in one contiguous area. 584 * (PCI_CSRBase + 0x00.1000 + INO * 8). 585 */ 586 return ((uint64_t *)(ib_p->ib_intr_map_regs) + (ino & 0x3f)); 587 } 588 589 uint64_t * 590 ib_clear_intr_reg_addr(ib_t *ib_p, ib_ino_t ino) /* XXX - needs work */ 591 { 592 /* 593 * Schizo maps clear intr. registers in contiguous area. 594 * (PCI_CSRBase + 0x00.1400 + INO * 8). 595 */ 596 return ((uint64_t *)(ib_p->ib_slot_clear_intr_regs) + (ino & 0x3f)); 597 } 598 599 /* 600 * schizo does not have mapping register per slot, so no sharing 601 * is done. 602 */ 603 /*ARGSUSED*/ 604 void 605 ib_ino_map_reg_share(ib_t *ib_p, ib_ino_t ino, ib_ino_info_t *ino_p) 606 { 607 } 608 609 /* 610 * return true if there are interrupts using this mapping register 611 */ 612 /*ARGSUSED*/ 613 int 614 ib_ino_map_reg_unshare(ib_t *ib_p, ib_ino_t ino, ib_ino_info_t *ino_p) 615 { 616 return (ino_p->ino_ipil_size); 617 } 618 619 void 620 pci_pbm_intr_dist(pbm_t *pbm_p) 621 { 622 pci_t *pci_p = pbm_p->pbm_pci_p; 623 ib_t *ib_p = pci_p->pci_ib_p; 624 ib_ino_t ino = IB_MONDO_TO_INO(pci_p->pci_inos[CBNINTR_CDMA]); 625 626 mutex_enter(&pbm_p->pbm_sync_mutex); 627 ib_intr_dist_nintr(ib_p, ino, ib_intr_map_reg_addr(ib_p, ino)); 628 mutex_exit(&pbm_p->pbm_sync_mutex); 629 } 630 631 uint32_t 632 pci_xlate_intr(dev_info_t *dip, dev_info_t *rdip, ib_t *ib_p, uint32_t intr) 633 { 634 return (IB_INO_TO_MONDO(ib_p, intr)); 635 } 636 637 638 /* 639 * Return the cpuid to to be used for an ino. We have no special cpu 640 * assignment constraints for this nexus, so just call intr_dist_cpuid(). 641 */ 642 /* ARGSUSED */ 643 uint32_t 644 pci_intr_dist_cpuid(ib_t *ib_p, ib_ino_info_t *ino_p) 645 { 646 return (intr_dist_cpuid()); 647 } 648 649 void 650 pci_cb_teardown(pci_t *pci_p) 651 { 652 cb_t *cb_p = pci_p->pci_cb_p; 653 uint32_t mondo; 654 655 if (!pci_buserr_interrupt) 656 return; 657 658 mondo = ((pci_p->pci_cb_p->cb_ign << PCI_INO_BITS) | 659 pci_p->pci_inos[CBNINTR_BUS_ERROR]); 660 mondo = CB_MONDO_TO_XMONDO(pci_p->pci_cb_p, mondo); 661 662 cb_disable_nintr(cb_p, CBNINTR_BUS_ERROR, IB_INTR_WAIT); 663 VERIFY(rem_ivintr(mondo, pci_pil[CBNINTR_BUS_ERROR]) == 0); 664 } 665 666 int 667 cb_register_intr(pci_t *pci_p) 668 { 669 uint32_t mondo; 670 671 if (!pci_buserr_interrupt) 672 return (DDI_SUCCESS); 673 674 mondo = ((pci_p->pci_cb_p->cb_ign << PCI_INO_BITS) | 675 pci_p->pci_inos[CBNINTR_BUS_ERROR]); 676 mondo = CB_MONDO_TO_XMONDO(pci_p->pci_cb_p, mondo); 677 678 VERIFY(add_ivintr(mondo, pci_pil[CBNINTR_BUS_ERROR], 679 (intrfunc)cb_buserr_intr, (caddr_t)pci_p->pci_cb_p, 680 NULL, NULL) == 0); 681 682 return (PCI_ATTACH_RETCODE(PCI_CB_OBJ, PCI_OBJ_INTR_ADD, DDI_SUCCESS)); 683 } 684 685 void 686 cb_enable_intr(pci_t *pci_p) 687 { 688 if (pci_buserr_interrupt) 689 cb_enable_nintr(pci_p, CBNINTR_BUS_ERROR); 690 } 691 692 uint64_t 693 cb_ino_to_map_pa(cb_t *cb_p, ib_ino_t ino) 694 { 695 return (cb_p->cb_map_pa + (ino << 3)); 696 } 697 698 uint64_t 699 cb_ino_to_clr_pa(cb_t *cb_p, ib_ino_t ino) 700 { 701 return (cb_p->cb_clr_pa + (ino << 3)); 702 } 703 704 /* 705 * Useful on psycho only. 706 */ 707 int 708 cb_remove_xintr(pci_t *pci_p, dev_info_t *dip, dev_info_t *rdip, ib_ino_t ino, 709 ib_mondo_t mondo) 710 { 711 return (DDI_FAILURE); 712 } 713 714 void 715 pbm_configure(pbm_t *pbm_p) 716 { 717 pci_t *pci_p = pbm_p->pbm_pci_p; 718 dev_info_t *dip = pbm_p->pbm_pci_p->pci_dip; 719 int instance = ddi_get_instance(dip); 720 uint64_t l; 721 uint64_t mask = 1ll << instance; 722 ushort_t s = 0; 723 724 l = *pbm_p->pbm_ctrl_reg; /* save control register state */ 725 DEBUG1(DBG_ATTACH, dip, "pbm_configure: ctrl reg=%llx\n", l); 726 727 /* 728 * See if any SERR# signals are asserted. We'll clear them later. 729 */ 730 if (l & COMMON_PCI_CTRL_SERR) 731 cmn_err(CE_WARN, "%s%d: SERR asserted on pci bus\n", 732 ddi_driver_name(dip), instance); 733 734 /* 735 * Determine if PCI bus is running at 33 or 66 mhz. 736 */ 737 if (l & COMMON_PCI_CTRL_SPEED) 738 pbm_p->pbm_speed = PBM_SPEED_66MHZ; 739 else 740 pbm_p->pbm_speed = PBM_SPEED_33MHZ; 741 DEBUG1(DBG_ATTACH, dip, "pbm_configure: %d mhz\n", 742 pbm_p->pbm_speed == PBM_SPEED_66MHZ ? 66 : 33); 743 744 if (pci_set_dto_value & mask) { 745 l &= ~(3ull << SCHIZO_PCI_CTRL_PTO_SHIFT); 746 l |= pci_dto_value << SCHIZO_PCI_CTRL_PTO_SHIFT; 747 } else if (PCI_CHIP_ID(pci_p) >= TOMATILLO_VER_21) { 748 l |= (3ull << SCHIZO_PCI_CTRL_PTO_SHIFT); 749 } 750 751 /* 752 * Enable error interrupts. 753 */ 754 if (pci_error_intr_enable & mask) 755 l |= SCHIZO_PCI_CTRL_ERR_INT_EN; 756 else 757 l &= ~SCHIZO_PCI_CTRL_ERR_INT_EN; 758 759 /* 760 * Enable pci streaming byte errors and error interrupts. 761 */ 762 if (pci_sbh_error_intr_enable & mask) 763 l |= SCHIZO_PCI_CTRL_SBH_INT_EN; 764 else 765 l &= ~SCHIZO_PCI_CTRL_SBH_INT_EN; 766 767 /* 768 * Enable pci discard timeout error interrupt. 769 */ 770 if (pci_mmu_error_intr_enable & mask) 771 l |= SCHIZO_PCI_CTRL_MMU_INT_EN; 772 else 773 l &= ~SCHIZO_PCI_CTRL_MMU_INT_EN; 774 775 /* 776 * Enable PCI-X error interrupts. 777 */ 778 if (CHIP_TYPE(pci_p) == PCI_CHIP_XMITS) { 779 780 if (xmits_error_intr_enable & mask) 781 l |= XMITS_PCI_CTRL_X_ERRINT_EN; 782 else 783 l &= ~XMITS_PCI_CTRL_X_ERRINT_EN; 784 /* 785 * Panic if older XMITS hardware is found. 786 */ 787 if (*pbm_p->pbm_ctrl_reg & XMITS_PCI_CTRL_X_MODE) 788 if (PCI_CHIP_ID(pci_p) <= XMITS_VER_10) 789 cmn_err(CE_PANIC, "%s (%s): PCIX mode " 790 "unsupported on XMITS version %d\n", 791 pbm_p->pbm_nameinst_str, 792 pbm_p->pbm_nameaddr_str, CHIP_VER(pci_p)); 793 794 if (xmits_perr_recov_int_enable) { 795 if (PCI_CHIP_ID(pci_p) >= XMITS_VER_30) { 796 uint64_t pcix_err; 797 /* 798 * Enable interrupt on PERR 799 */ 800 pcix_err = *pbm_p->pbm_pcix_err_stat_reg; 801 pcix_err |= XMITS_PCIX_STAT_PERR_RECOV_INT_EN; 802 pcix_err &= ~XMITS_PCIX_STAT_SERR_ON_PERR; 803 *pbm_p->pbm_pcix_err_stat_reg = pcix_err; 804 } 805 } 806 807 /* 808 * Enable parity error detection on internal memories 809 */ 810 *pbm_p->pbm_pci_ped_ctrl = 0x3fff; 811 } 812 813 /* 814 * Enable/disable bus parking. 815 */ 816 if ((pci_bus_parking_enable & mask) && 817 !ddi_prop_exists(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, 818 "no-bus-parking")) 819 l |= SCHIZO_PCI_CTRL_ARB_PARK; 820 else 821 l &= ~SCHIZO_PCI_CTRL_ARB_PARK; 822 823 /* 824 * Enable arbitration. 825 */ 826 l |= PCI_CHIP_ID(pci_p) == XMITS_VER_10 ? XMITS10_PCI_CTRL_ARB_EN_MASK : 827 SCHIZO_PCI_CTRL_ARB_EN_MASK; 828 829 /* 830 * Make sure SERR is clear 831 */ 832 l |= COMMON_PCI_CTRL_SERR; 833 834 835 /* 836 * Enable DTO interrupt, if desired. 837 */ 838 839 if (PCI_CHIP_ID(pci_p) <= TOMATILLO_VER_20 || (pci_dto_intr_enable & 840 mask)) 841 l |= (TOMATILLO_PCI_CTRL_DTO_INT_EN); 842 else 843 l &= ~(TOMATILLO_PCI_CTRL_DTO_INT_EN); 844 845 l |= TOMATILLO_PCI_CTRL_PEN_RD_MLTPL | 846 TOMATILLO_PCI_CTRL_PEN_RD_ONE | 847 TOMATILLO_PCI_CTRL_PEN_RD_LINE; 848 849 /* 850 * Now finally write the control register with the appropriate value. 851 */ 852 DEBUG1(DBG_ATTACH, dip, "pbm_configure: ctrl reg=%llx\n", l); 853 *pbm_p->pbm_ctrl_reg = l; 854 855 /* 856 * Enable IO Prefetch on Tomatillo 857 */ 858 if (CHIP_TYPE(pci_p) == PCI_CHIP_TOMATILLO) { 859 volatile uint64_t *ioc_csr_p = pbm_p->pbm_ctrl_reg + 860 ((TOMATILLO_IOC_CSR_OFF - 861 SCHIZO_PCI_CTRL_REG_OFFSET) >> 3); 862 *ioc_csr_p = TOMATILLO_WRT_PEN | 863 (1 << TOMATILLO_POFFSET_SHIFT) | 864 TOMATILLO_C_PEN_RD_MLTPL | 865 TOMATILLO_C_PEN_RD_ONE | 866 TOMATILLO_C_PEN_RD_LINE; 867 } 868 869 /* 870 * Allow DMA write parity errors to generate an interrupt. 871 * This is implemented on Schizo 2.5 and greater and XMITS 3.0 872 * and greater. Setting this on earlier versions of XMITS 3.0 873 * has no affect. 874 */ 875 if (((CHIP_TYPE(pci_p) == PCI_CHIP_SCHIZO) && 876 PCI_CHIP_ID(pci_p) >= SCHIZO_VER_25) || 877 (CHIP_TYPE(pci_p) == PCI_CHIP_XMITS)) { 878 volatile uint64_t *pbm_icd = pbm_p->pbm_ctrl_reg + 879 ((SCHIZO_PERF_PCI_ICD_OFFSET - 880 SCHIZO_PCI_CTRL_REG_OFFSET) >> 3); 881 882 *pbm_icd |= SCHIZO_PERF_PCI_ICD_DMAW_PARITY_INT_ENABLE; 883 } 884 885 /* 886 * Clear any PBM errors. 887 */ 888 l = (SCHIZO_PCI_AFSR_E_MASK << SCHIZO_PCI_AFSR_PE_SHIFT) | 889 (SCHIZO_PCI_AFSR_E_MASK << SCHIZO_PCI_AFSR_SE_SHIFT); 890 *pbm_p->pbm_async_flt_status_reg = l; 891 892 /* 893 * Allow the diag register to be set based upon variable that 894 * can be configured via /etc/system. 895 */ 896 l = *pbm_p->pbm_diag_reg; 897 DEBUG1(DBG_ATTACH, dip, "pbm_configure: PCI diag reg=%llx\n", l); 898 899 /* 900 * Enable/disable retry limit. 901 */ 902 if (pci_retry_disable & mask) 903 l |= COMMON_PCI_DIAG_DIS_RETRY; 904 else 905 l &= ~COMMON_PCI_DIAG_DIS_RETRY; 906 907 /* 908 * Enable/disable DMA write/interrupt synchronization. 909 */ 910 if (pci_intsync_disable & mask) 911 l |= COMMON_PCI_DIAG_DIS_INTSYNC; 912 else 913 l &= ~COMMON_PCI_DIAG_DIS_INTSYNC; 914 915 /* 916 * Enable/disable retry arbitration priority. 917 */ 918 if (pci_enable_retry_arb & mask) 919 l &= ~SCHIZO_PCI_DIAG_DIS_RTRY_ARB; 920 else 921 l |= SCHIZO_PCI_DIAG_DIS_RTRY_ARB; 922 923 DEBUG1(DBG_ATTACH, dip, "pbm_configure: PCI diag reg=%llx\n", l); 924 *pbm_p->pbm_diag_reg = l; 925 926 /* 927 * Enable SERR# and parity reporting via command register. 928 */ 929 s = pci_perr_enable & mask ? PCI_COMM_PARITY_DETECT : 0; 930 s |= pci_serr_enable & mask ? PCI_COMM_SERR_ENABLE : 0; 931 932 DEBUG1(DBG_ATTACH, dip, "pbm_configure: conf command reg=%x\n", s); 933 pbm_p->pbm_config_header->ch_command_reg = s; 934 935 /* 936 * Clear error bits in configuration status register. 937 */ 938 s = PCI_STAT_PERROR | PCI_STAT_S_PERROR | 939 PCI_STAT_R_MAST_AB | PCI_STAT_R_TARG_AB | 940 PCI_STAT_S_TARG_AB | PCI_STAT_S_PERROR; 941 DEBUG1(DBG_ATTACH, dip, "pbm_configure: conf status reg=%x\n", s); 942 pbm_p->pbm_config_header->ch_status_reg = s; 943 944 /* 945 * The current versions of the obp are suppose to set the latency 946 * timer register but do not. Bug 1234181 is open against this 947 * problem. Until this bug is fixed we check to see if the obp 948 * has attempted to set the latency timer register by checking 949 * for the existence of a "latency-timer" property. 950 */ 951 if (pci_set_latency_timer_register) { 952 DEBUG1(DBG_ATTACH, dip, 953 "pbm_configure: set schizo latency timer to %x\n", 954 pci_latency_timer); 955 pbm_p->pbm_config_header->ch_latency_timer_reg = 956 pci_latency_timer; 957 } 958 959 (void) ndi_prop_update_int(DDI_DEV_T_ANY, dip, "latency-timer", 960 (int)pbm_p->pbm_config_header->ch_latency_timer_reg); 961 962 /* 963 * Adjust xmits_upper_retry_counter if set in /etc/system 964 * 965 * NOTE: current implementation resets UPPR_RTRY counter for 966 * _all_ XMITS' PBMs and does not support tuning per PBM. 967 */ 968 if (CHIP_TYPE(pci_p) == PCI_CHIP_XMITS) { 969 uint_t xurc = xmits_upper_retry_counter & 970 XMITS_UPPER_RETRY_MASK; 971 972 if (xurc) { 973 *pbm_p->pbm_upper_retry_counter_reg = (uint64_t)xurc; 974 DEBUG1(DBG_ATTACH, dip, "pbm_configure: Setting XMITS" 975 " uppr_rtry counter = 0x%lx\n", 976 *pbm_p->pbm_upper_retry_counter_reg); 977 } 978 } 979 } 980 981 uint_t 982 pbm_disable_pci_errors(pbm_t *pbm_p) 983 { 984 pci_t *pci_p = pbm_p->pbm_pci_p; 985 ib_t *ib_p = pci_p->pci_ib_p; 986 987 /* 988 * Disable error and streaming byte hole interrupts via the 989 * PBM control register. 990 */ 991 *pbm_p->pbm_ctrl_reg &= 992 ~(SCHIZO_PCI_CTRL_ERR_INT_EN | SCHIZO_PCI_CTRL_SBH_INT_EN | 993 SCHIZO_PCI_CTRL_MMU_INT_EN); 994 995 /* 996 * Disable error interrupts via the interrupt mapping register. 997 */ 998 ib_intr_disable(ib_p, pci_p->pci_inos[CBNINTR_PBM], IB_INTR_NOWAIT); 999 return (BF_NONE); 1000 } 1001 1002 /* 1003 * Layout of the dvma context bucket bitmap entry: 1004 * 1005 * 63 - 56 55 - 0 1006 * 8-bit lock 56-bit, each represent one context 1007 * DCB_LOCK_BITS DCB_BMAP_BITS 1008 */ 1009 #define DCB_LOCK_BITS 8 1010 #define DCB_BMAP_BITS (64 - DCB_LOCK_BITS) 1011 1012 dvma_context_t 1013 pci_iommu_get_dvma_context(iommu_t *iommu_p, dvma_addr_t dvma_pg_index) 1014 { 1015 dvma_context_t ctx; 1016 int i = (dvma_pg_index >> 6) & 0x1f; /* 5 bit index within bucket */ 1017 uint64_t ctx_mask, test = 1ull << i; 1018 uint32_t bucket_no = dvma_pg_index & 0x3f; 1019 uint64_t *bucket_ptr = iommu_p->iommu_ctx_bitmap + bucket_no; 1020 1021 uint32_t spl = ddi_enter_critical(); /* block interrupts */ 1022 if (ldstub((uint8_t *)bucket_ptr)) { /* try lock */ 1023 ddi_exit_critical(spl); /* unblock interrupt */ 1024 pci_iommu_ctx_lock_failure++; 1025 return (0); 1026 } 1027 1028 /* clear lock bits */ 1029 ctx_mask = (*bucket_ptr << DCB_LOCK_BITS) >> DCB_LOCK_BITS; 1030 ASSERT(*bucket_ptr >> DCB_BMAP_BITS == 0xff); 1031 ASSERT(ctx_mask >> DCB_BMAP_BITS == 0); 1032 1033 if (ctx_mask & test) /* quick check i bit */ 1034 for (i = 0, test = 1ull; test & ctx_mask; test <<= 1, i++); 1035 if (i < DCB_BMAP_BITS) 1036 ctx_mask |= test; 1037 *bucket_ptr = ctx_mask; /* unlock */ 1038 ddi_exit_critical(spl); /* unblock interrupts */ 1039 1040 ctx = i < DCB_BMAP_BITS ? (bucket_no << 6) | i : 0; 1041 DEBUG3(DBG_DMA_MAP, iommu_p->iommu_pci_p->pci_dip, 1042 "get_dvma_context: ctx_mask=0x%x.%x ctx=0x%x\n", 1043 (uint32_t)(ctx_mask >> 32), (uint32_t)ctx_mask, ctx); 1044 return (ctx); 1045 } 1046 1047 void 1048 pci_iommu_free_dvma_context(iommu_t *iommu_p, dvma_context_t ctx) 1049 { 1050 uint64_t ctx_mask; 1051 uint32_t spl, bucket_no = ctx >> 6; 1052 int bit_no = ctx & 0x3f; 1053 uint64_t *bucket_ptr = iommu_p->iommu_ctx_bitmap + bucket_no; 1054 1055 DEBUG1(DBG_DMA_MAP, iommu_p->iommu_pci_p->pci_dip, 1056 "free_dvma_context: ctx=0x%x\n", ctx); 1057 1058 spl = ddi_enter_critical(); /* block interrupts */ 1059 while (ldstub((uint8_t *)bucket_ptr)); /* spin lock */ 1060 ctx_mask = (*bucket_ptr << DCB_LOCK_BITS) >> DCB_LOCK_BITS; 1061 /* clear lock bits */ 1062 ASSERT(ctx_mask & (1ull << bit_no)); 1063 *bucket_ptr = ctx_mask ^ (1ull << bit_no); /* clear & unlock */ 1064 ddi_exit_critical(spl); /* unblock interrupt */ 1065 } 1066 1067 int 1068 pci_sc_ctx_inv(dev_info_t *dip, sc_t *sc_p, ddi_dma_impl_t *mp) 1069 { 1070 dvma_context_t ctx = MP2CTX(mp); 1071 volatile uint64_t *reg_addr = sc_p->sc_ctx_match_reg + ctx; 1072 uint64_t matchreg; 1073 1074 if (!*reg_addr) { 1075 DEBUG1(DBG_SC, dip, "ctx=%x no match\n", ctx); 1076 return (DDI_SUCCESS); 1077 } 1078 1079 *sc_p->sc_ctx_invl_reg = ctx; /* 1st flush write */ 1080 matchreg = *reg_addr; /* re-fetch after 1st flush */ 1081 if (!matchreg) 1082 return (DDI_SUCCESS); 1083 1084 matchreg = (matchreg << SC_ENT_SHIFT) >> SC_ENT_SHIFT; /* low 16-bit */ 1085 do { 1086 if (matchreg & 1) 1087 *sc_p->sc_ctx_invl_reg = ctx; 1088 matchreg >>= 1; 1089 } while (matchreg); 1090 1091 if (pci_ctx_no_compat || !*reg_addr) /* compat: active ctx flush */ 1092 return (DDI_SUCCESS); 1093 1094 pci_ctx_unsuccess_count++; 1095 if (pci_ctx_flush_warn) 1096 cmn_err(pci_ctx_flush_warn, "%s%d: ctx flush unsuccessful\n", 1097 NAMEINST(dip)); 1098 return (DDI_FAILURE); 1099 } 1100 1101 void 1102 pci_cb_setup(pci_t *pci_p) 1103 { 1104 dev_info_t *dip = pci_p->pci_dip; 1105 cb_t *cb_p = pci_p->pci_cb_p; 1106 uint64_t pa; 1107 uint32_t chip_id = PCI_CHIP_ID(pci_p); 1108 DEBUG1(DBG_ATTACH, dip, "cb_create: chip id %d\n", chip_id); 1109 1110 if (CHIP_TYPE(pci_p) == PCI_CHIP_TOMATILLO) { 1111 if ((!tm_mtlb_gc_manual) && 1112 (PCI_CHIP_ID(pci_p) <= TOMATILLO_VER_24)) 1113 tm_mtlb_gc = 1; 1114 1115 if (PCI_CHIP_ID(pci_p) <= TOMATILLO_VER_23) { 1116 tomatillo_store_store_wrka = 1; 1117 tomatillo_disallow_bypass = 1; 1118 if (pci_spurintr_msgs == PCI_SPURINTR_MSG_DEFAULT) 1119 pci_spurintr_msgs = 0; 1120 } 1121 } 1122 1123 if (chip_id == TOMATILLO_VER_20 || chip_id == TOMATILLO_VER_21) 1124 cmn_err(CE_WARN, "Unsupported Tomatillo rev (%x)", chip_id); 1125 1126 if (chip_id < SCHIZO_VER_23) 1127 pci_ctx_no_active_flush = 1; 1128 1129 cb_p->cb_node_id = PCI_ID_TO_NODEID(pci_p->pci_id); 1130 cb_p->cb_ign = PCI_ID_TO_IGN(pci_p->pci_id); 1131 1132 /* 1133 * schizo control status reg bank is on the 2nd "reg" property entry 1134 * interrupt mapping/clear/state regs are on the 1st "reg" entry. 1135 * 1136 * ALL internal interrupts except pbm interrupts are shared by both 1137 * sides, 1st-side-attached is used as *the* owner. 1138 */ 1139 pa = (uint64_t)hat_getpfnum(kas.a_hat, pci_p->pci_address[1]); 1140 cb_p->cb_base_pa = pa << MMU_PAGESHIFT; 1141 1142 pa = pci_p->pci_address[3] ? 1143 (uint64_t)hat_getpfnum(kas.a_hat, pci_p->pci_address[3]) : 0; 1144 cb_p->cb_icbase_pa = (pa == PFN_INVALID) ? 0 : pa << MMU_PAGESHIFT; 1145 1146 pa = (uint64_t)hat_getpfnum(kas.a_hat, pci_p->pci_address[0]) 1147 << MMU_PAGESHIFT; 1148 cb_p->cb_map_pa = pa + SCHIZO_IB_INTR_MAP_REG_OFFSET; 1149 cb_p->cb_clr_pa = pa + SCHIZO_IB_CLEAR_INTR_REG_OFFSET; 1150 cb_p->cb_obsta_pa = pa + COMMON_IB_OBIO_INTR_STATE_DIAG_REG; 1151 } 1152 1153 void 1154 pci_ecc_setup(ecc_t *ecc_p) 1155 { 1156 ecc_p->ecc_ue.ecc_errpndg_mask = SCHIZO_ECC_UE_AFSR_ERRPNDG; 1157 ecc_p->ecc_ue.ecc_offset_mask = SCHIZO_ECC_UE_AFSR_QW_OFFSET; 1158 ecc_p->ecc_ue.ecc_offset_shift = SCHIZO_ECC_UE_AFSR_QW_OFFSET_SHIFT; 1159 ecc_p->ecc_ue.ecc_size_log2 = 4; 1160 1161 ecc_p->ecc_ce.ecc_errpndg_mask = SCHIZO_ECC_CE_AFSR_ERRPNDG; 1162 ecc_p->ecc_ce.ecc_offset_mask = SCHIZO_ECC_CE_AFSR_QW_OFFSET; 1163 ecc_p->ecc_ce.ecc_offset_shift = SCHIZO_ECC_CE_AFSR_QW_OFFSET_SHIFT; 1164 ecc_p->ecc_ce.ecc_size_log2 = 4; 1165 } 1166 1167 ushort_t 1168 pci_ecc_get_synd(uint64_t afsr) 1169 { 1170 return ((ushort_t)((afsr & SCHIZO_ECC_CE_AFSR_SYND) >> 1171 SCHIZO_ECC_CE_AFSR_SYND_SHIFT)); 1172 } 1173 1174 /* 1175 * overwrite dvma end address (only on virtual-dma systems) 1176 * initialize tsb size 1177 * reset context bits 1178 * return: IOMMU CSR bank base address (VA) 1179 */ 1180 1181 uintptr_t 1182 pci_iommu_setup(iommu_t *iommu_p) 1183 { 1184 pci_dvma_range_prop_t *dvma_prop; 1185 int dvma_prop_len; 1186 1187 uintptr_t a; 1188 pci_t *pci_p = iommu_p->iommu_pci_p; 1189 dev_info_t *dip = pci_p->pci_dip; 1190 uint_t tsb_size = iommu_tsb_cookie_to_size(pci_p->pci_tsb_cookie); 1191 uint_t tsb_size_prop; 1192 1193 /* 1194 * Initializations for Tomatillo's micro TLB bug. errata #82 1195 */ 1196 if (tm_mtlb_gc) { 1197 iommu_p->iommu_mtlb_nreq = 0; 1198 iommu_p->iommu_mtlb_npgs = 0; 1199 iommu_p->iommu_mtlb_maxpgs = tm_mtlb_maxpgs; 1200 iommu_p->iommu_mtlb_req_p = (dvma_unbind_req_t *) 1201 kmem_zalloc(sizeof (dvma_unbind_req_t) * 1202 (tm_mtlb_maxpgs + 1), KM_SLEEP); 1203 mutex_init(&iommu_p->iommu_mtlb_lock, NULL, MUTEX_DRIVER, NULL); 1204 } 1205 1206 if (ddi_getlongprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, 1207 "virtual-dma", (caddr_t)&dvma_prop, &dvma_prop_len) != 1208 DDI_PROP_SUCCESS) 1209 goto tsb_done; 1210 1211 if (dvma_prop_len != sizeof (pci_dvma_range_prop_t)) { 1212 cmn_err(CE_WARN, "%s%d: invalid virtual-dma property", 1213 ddi_driver_name(dip), ddi_get_instance(dip)); 1214 goto tsb_end; 1215 } 1216 iommu_p->iommu_dvma_end = dvma_prop->dvma_base + 1217 (dvma_prop->dvma_len - 1); 1218 tsb_size_prop = IOMMU_BTOP(dvma_prop->dvma_len) * sizeof (uint64_t); 1219 tsb_size = MIN(tsb_size_prop, tsb_size); 1220 tsb_end: 1221 kmem_free(dvma_prop, dvma_prop_len); 1222 tsb_done: 1223 iommu_p->iommu_tsb_size = iommu_tsb_size_encode(tsb_size); 1224 iommu_p->iommu_ctx_bitmap = 1225 kmem_zalloc(IOMMU_CTX_BITMAP_SIZE, KM_SLEEP); 1226 *iommu_p->iommu_ctx_bitmap = 1ull; /* reserve context 0 */ 1227 1228 /* 1229 * Determine the virtual address of the register block 1230 * containing the iommu control registers and determine 1231 * the virtual address of schizo specific iommu registers. 1232 */ 1233 a = (uintptr_t)pci_p->pci_address[0]; 1234 iommu_p->iommu_flush_ctx_reg = 1235 (uint64_t *)(a + SCHIZO_IOMMU_FLUSH_CTX_REG_OFFSET); 1236 if (CHIP_TYPE(pci_p) == PCI_CHIP_TOMATILLO) 1237 iommu_p->iommu_tfar_reg = 1238 (uint64_t *)(a + TOMATILLO_IOMMU_ERR_TFAR_OFFSET); 1239 return (a); /* PCICSRBase */ 1240 } 1241 1242 void 1243 pci_iommu_teardown(iommu_t *iommu_p) 1244 { 1245 if (pci_use_contexts) 1246 iommu_ctx_free(iommu_p); 1247 if (iommu_p->iommu_mtlb_req_p) { 1248 kmem_free(iommu_p->iommu_mtlb_req_p, 1249 sizeof (dvma_unbind_req_t) * (tm_mtlb_maxpgs + 1)); 1250 mutex_destroy(&iommu_p->iommu_mtlb_lock); 1251 iommu_p->iommu_mtlb_req_p = NULL; 1252 iommu_p->iommu_mtlb_nreq = 0; 1253 iommu_p->iommu_mtlb_npgs = iommu_p->iommu_mtlb_maxpgs = 0; 1254 } 1255 } 1256 1257 uintptr_t 1258 get_pbm_reg_base(pci_t *pci_p) 1259 { 1260 return ((uintptr_t) 1261 (pci_p->pci_address[0] + SCHIZO_PCI_CTRL_REG_OFFSET)); 1262 } 1263 1264 /* ARGSUSED */ 1265 static boolean_t 1266 pci_pbm_panic_callb(void *arg, int code) 1267 { 1268 pbm_t *pbm_p = (pbm_t *)arg; 1269 volatile uint64_t *ctrl_reg_p; 1270 1271 if (pbm_p->pbm_quiesce_count > 0) { 1272 ctrl_reg_p = pbm_p->pbm_ctrl_reg; 1273 *ctrl_reg_p = pbm_p->pbm_saved_ctrl_reg; 1274 } 1275 1276 return (B_TRUE); 1277 } 1278 1279 static boolean_t 1280 pci_pbm_debug_callb(void *arg, int code) 1281 { 1282 pbm_t *pbm_p = (pbm_t *)arg; 1283 volatile uint64_t *ctrl_reg_p; 1284 uint64_t ctrl_reg; 1285 1286 if (pbm_p->pbm_quiesce_count > 0) { 1287 ctrl_reg_p = pbm_p->pbm_ctrl_reg; 1288 if (code == 0) { 1289 *ctrl_reg_p = pbm_p->pbm_saved_ctrl_reg; 1290 } else { 1291 ctrl_reg = pbm_p->pbm_saved_ctrl_reg; 1292 ctrl_reg &= ~(SCHIZO_PCI_CTRL_ARB_EN_MASK | 1293 SCHIZO_PCI_CTRL_ARB_PARK); 1294 *ctrl_reg_p = ctrl_reg; 1295 } 1296 } 1297 1298 return (B_TRUE); 1299 } 1300 1301 void 1302 pci_pbm_setup(pbm_t *pbm_p) 1303 { 1304 pci_t *pci_p = pbm_p->pbm_pci_p; 1305 caddr_t a = pci_p->pci_address[0]; /* PBM block base VA */ 1306 uint64_t pa = va_to_pa(a); 1307 extern int segkmem_reloc; 1308 1309 mutex_init(&pbm_p->pbm_sync_mutex, NULL, MUTEX_DRIVER, 1310 (void *)ipltospl(XCALL_PIL)); 1311 1312 pbm_p->pbm_config_header = (config_header_t *)pci_p->pci_address[2]; 1313 pbm_p->pbm_ctrl_reg = (uint64_t *)(a + SCHIZO_PCI_CTRL_REG_OFFSET); 1314 pbm_p->pbm_diag_reg = (uint64_t *)(a + SCHIZO_PCI_DIAG_REG_OFFSET); 1315 pbm_p->pbm_async_flt_status_reg = 1316 (uint64_t *)(a + SCHIZO_PCI_ASYNC_FLT_STATUS_REG_OFFSET); 1317 pbm_p->pbm_async_flt_addr_reg = 1318 (uint64_t *)(a + SCHIZO_PCI_ASYNC_FLT_ADDR_REG_OFFSET); 1319 pbm_p->pbm_estar_reg = (uint64_t *)(a + SCHIZO_PCI_ESTAR_REG_OFFSET); 1320 pbm_p->pbm_pcix_err_stat_reg = (uint64_t *)(a + 1321 XMITS_PCI_X_ERROR_STATUS_REG_OFFSET); 1322 pbm_p->pbm_pci_ped_ctrl = (uint64_t *)(a + 1323 XMITS_PARITY_DETECT_REG_OFFSET); 1324 1325 /* 1326 * Create a property to indicate that this node supports DVMA 1327 * page relocation. 1328 */ 1329 if (CHIP_TYPE(pci_p) != PCI_CHIP_TOMATILLO && segkmem_reloc != 0) { 1330 pci_dvma_remap_enabled = 1; 1331 (void) ndi_prop_create_boolean(DDI_DEV_T_NONE, 1332 pci_p->pci_dip, "dvma-remap-supported"); 1333 } 1334 1335 /* 1336 * Register a panic callback so we can unquiesce this bus 1337 * if it has been placed in the quiesced state. 1338 */ 1339 pbm_p->pbm_panic_cb_id = callb_add(pci_pbm_panic_callb, 1340 (void *)pbm_p, CB_CL_PANIC, "pci_panic"); 1341 pbm_p->pbm_debug_cb_id = callb_add(pci_pbm_panic_callb, 1342 (void *)pbm_p, CB_CL_ENTER_DEBUGGER, "pci_debug_enter"); 1343 1344 if (CHIP_TYPE(pci_p) != PCI_CHIP_SCHIZO) 1345 goto non_schizo; 1346 1347 if (PCI_CHIP_ID(pci_p) >= SCHIZO_VER_23) { 1348 1349 pbm_p->pbm_sync_reg_pa = pa + SCHIZO_PBM_DMA_SYNC_REG_OFFSET; 1350 1351 /* 1352 * This is a software workaround to fix schizo hardware bug. 1353 * Create a boolean property and its existence means consistent 1354 * dma sync should not be done while in prom. The usb polled 1355 * code (OHCI,EHCI) will check for this property and will not 1356 * do dma sync if this property exist. 1357 */ 1358 (void) ndi_prop_create_boolean(DDI_DEV_T_NONE, 1359 pci_p->pci_dip, "no-prom-cdma-sync"); 1360 } 1361 return; 1362 non_schizo: 1363 if (CHIP_TYPE(pci_p) == PCI_CHIP_TOMATILLO) { 1364 pci_dvma_sync_before_unmap = 1; 1365 pa = pci_p->pci_cb_p->cb_icbase_pa; 1366 } 1367 if (CHIP_TYPE(pci_p) == PCI_CHIP_XMITS) 1368 pbm_p->pbm_upper_retry_counter_reg = 1369 (uint64_t *)(a + XMITS_UPPER_RETRY_COUNTER_REG_OFFSET); 1370 1371 pbm_p->pbm_sync_reg_pa = pa + PBM_DMA_SYNC_PEND_REG_OFFSET; 1372 } 1373 1374 void 1375 pci_pbm_teardown(pbm_t *pbm_p) 1376 { 1377 (void) callb_delete(pbm_p->pbm_panic_cb_id); 1378 (void) callb_delete(pbm_p->pbm_debug_cb_id); 1379 } 1380 1381 uintptr_t 1382 pci_ib_setup(ib_t *ib_p) 1383 { 1384 /* 1385 * Determine virtual addresses of bridge specific registers, 1386 */ 1387 pci_t *pci_p = ib_p->ib_pci_p; 1388 uintptr_t a = (uintptr_t)pci_p->pci_address[0]; 1389 1390 ib_p->ib_ign = PCI_ID_TO_IGN(pci_p->pci_id); 1391 ib_p->ib_max_ino = SCHIZO_MAX_INO; 1392 ib_p->ib_slot_intr_map_regs = a + SCHIZO_IB_SLOT_INTR_MAP_REG_OFFSET; 1393 ib_p->ib_intr_map_regs = a + SCHIZO_IB_INTR_MAP_REG_OFFSET; 1394 ib_p->ib_slot_clear_intr_regs = 1395 a + SCHIZO_IB_CLEAR_INTR_REG_OFFSET; 1396 return (a); 1397 } 1398 1399 void 1400 pci_sc_setup(sc_t *sc_p) 1401 { 1402 pci_t *pci_p = sc_p->sc_pci_p; 1403 uintptr_t a; 1404 1405 /* 1406 * Determine the virtual addresses of the stream cache 1407 * control/status and flush registers. 1408 */ 1409 a = (uintptr_t)pci_p->pci_address[0]; /* PCICSRBase */ 1410 sc_p->sc_ctrl_reg = (uint64_t *)(a + SCHIZO_SC_CTRL_REG_OFFSET); 1411 sc_p->sc_invl_reg = (uint64_t *)(a + SCHIZO_SC_INVL_REG_OFFSET); 1412 sc_p->sc_sync_reg = (uint64_t *)(a + SCHIZO_SC_SYNC_REG_OFFSET); 1413 sc_p->sc_ctx_invl_reg = (uint64_t *)(a + SCHIZO_SC_CTX_INVL_REG_OFFSET); 1414 sc_p->sc_ctx_match_reg = 1415 (uint64_t *)(a + SCHIZO_SC_CTX_MATCH_REG_OFFSET); 1416 1417 /* 1418 * Determine the virtual addresses of the streaming cache 1419 * diagnostic access registers. 1420 */ 1421 sc_p->sc_data_diag_acc = (uint64_t *)(a + SCHIZO_SC_DATA_DIAG_OFFSET); 1422 sc_p->sc_tag_diag_acc = (uint64_t *)(a + SCHIZO_SC_TAG_DIAG_OFFSET); 1423 sc_p->sc_ltag_diag_acc = (uint64_t *)(a + SCHIZO_SC_LTAG_DIAG_OFFSET); 1424 } 1425 1426 /*ARGSUSED*/ 1427 int 1428 pci_get_numproxy(dev_info_t *dip) 1429 { 1430 /* 1431 * Schizo does not support interrupt proxies. 1432 */ 1433 return (0); 1434 } 1435 1436 /* 1437 * pcisch error handling 101: 1438 * 1439 * The various functions below are responsible for error handling. Given 1440 * a particular error, they must gather the appropriate state, report all 1441 * errors with correct payload, and attempt recovery where ever possible. 1442 * 1443 * Recovery in the context of this driver is being able notify a leaf device 1444 * of the failed transaction. This leaf device may either be the master or 1445 * target for this transaction and may have already received an error 1446 * notification via a PCI interrupt. Notification is done via DMA and access 1447 * handles. If we capture an address for the transaction then we can map it 1448 * to a handle(if the leaf device is fma-compliant) and fault the handle as 1449 * well as call the device driver registered callback. 1450 * 1451 * The hardware can either interrupt or trap upon detection of an error, in 1452 * some rare cases it also causes a fatal reset. 1453 * 1454 * cb_buserr_intr() is responsible for handling control block 1455 * errors(errors which stem from the host bus side of the bridge). Since 1456 * we support multiple chips and host bus standards, cb_buserr_intr will 1457 * call a bus specific error handler to report and handle the detected 1458 * error. Since this error can either affect or orginate from either of the 1459 * two PCI busses which are connected to the bridge, we need to call 1460 * pci_pbm_err_handler() for each bus as well to report their errors. We 1461 * also need to gather possible errors which have been detected by their 1462 * compliant children(via ndi_fm_handler_dispatch()). 1463 * 1464 * pbm_error_intr() and ecc_intr() are responsible for PCI Block Module 1465 * errors(generic PCI + bridge specific) and ECC errors, respectively. They 1466 * are common between pcisch and pcipsy and therefore exist in pci_pbm.c and 1467 * pci_ecc.c. To support error handling certain chip specific handlers 1468 * must exist and they are defined below. 1469 * 1470 * cpu_deferred_error() and cpu_async_error(), handle the traps that may 1471 * have originated from IO space. They call into the registered IO callbacks 1472 * to report and handle errors that may have caused the trap. 1473 * 1474 * pci_pbm_err_handler() is called by pbm_error_intr() or pci_err_callback() 1475 * (generic fma callback for pcipsy/pcisch, pci_fm.c). pci_err_callback() is 1476 * called when the CPU has trapped because of a possible IO error(TO/BERR/UE). 1477 * It will call pci_pbm_err_handler() to report and handle all PCI/PBM/IOMMU 1478 * related errors which are detected by the chip. 1479 * 1480 * pci_pbm_err_handler() calls a generic interface pbm_afsr_report()(pci_pbm.c) 1481 * to report the pbm specific errors and attempt to map the failed address 1482 * (if captured) to a device instance. pbm_afsr_report() calls a chip specific 1483 * interface to interpret the afsr bits pci_pbm_classify()(pcisch.c/pcipsy.c). 1484 * pci_pbm_err_handler() also calls iommu_err_handler() to handle IOMMU related 1485 * errors. 1486 * 1487 * iommu_err_handler() can recover from most errors, as long as the requesting 1488 * device is notified and the iommu can be flushed. If an IOMMU error occurs 1489 * due to a UE then it will be passed on to the ecc_err_handler() for 1490 * subsequent handling. 1491 * 1492 * ecc_err_handler()(pci_ecc.c) also calls a chip specific interface to 1493 * interpret the afsr, pci_ecc_classify(). ecc_err_handler() also calls 1494 * pci_pbm_err_handler() to report any pbm errors detected. 1495 * 1496 * To make sure that the trap code and the interrupt code are not going 1497 * to step on each others toes we have a per chip pci_fm_mutex. This also 1498 * makes it necessary for us to be caution while we are at a high PIL, so 1499 * that we do not cause a subsequent trap that causes us to hang. 1500 * 1501 * The attempt to commonize code was meant to keep in line with the current 1502 * pci driver implementation and it was not meant to confuse. If you are 1503 * confused then don't worry, I was too. 1504 * 1505 */ 1506 static void 1507 pci_cb_errstate_get(cb_t *cb_p, cb_errstate_t *cb_err_p) 1508 { 1509 uint64_t pa = cb_p->cb_base_pa; 1510 int i; 1511 1512 bzero(cb_err_p, sizeof (cb_errstate_t)); 1513 1514 ASSERT(MUTEX_HELD(&cb_p->cb_pci_cmn_p->pci_fm_mutex)); 1515 1516 cb_err_p->cb_bridge_type = PCI_BRIDGE_TYPE(cb_p->cb_pci_cmn_p); 1517 1518 cb_err_p->cb_csr = lddphysio(pa + SCHIZO_CB_CSR_OFFSET); 1519 cb_err_p->cb_err = lddphysio(pa + SCHIZO_CB_ERRCTRL_OFFSET); 1520 cb_err_p->cb_intr = lddphysio(pa + SCHIZO_CB_INTCTRL_OFFSET); 1521 cb_err_p->cb_elog = lddphysio(pa + SCHIZO_CB_ERRLOG_OFFSET); 1522 cb_err_p->cb_ecc = lddphysio(pa + SCHIZO_CB_ECCCTRL_OFFSET); 1523 cb_err_p->cb_ue_afsr = lddphysio(pa + SCHIZO_CB_UEAFSR_OFFSET); 1524 cb_err_p->cb_ue_afar = lddphysio(pa + SCHIZO_CB_UEAFAR_OFFSET); 1525 cb_err_p->cb_ce_afsr = lddphysio(pa + SCHIZO_CB_CEAFSR_OFFSET); 1526 cb_err_p->cb_ce_afar = lddphysio(pa + SCHIZO_CB_CEAFAR_OFFSET); 1527 1528 if ((CB_CHIP_TYPE((cb_t *)cb_p)) == PCI_CHIP_XMITS) { 1529 cb_err_p->cb_first_elog = lddphysio(pa + 1530 XMITS_CB_FIRST_ERROR_LOG); 1531 cb_err_p->cb_first_eaddr = lddphysio(pa + 1532 XMITS_CB_FIRST_ERROR_ADDR); 1533 cb_err_p->cb_leaf_status = lddphysio(pa + 1534 XMITS_CB_FIRST_ERROR_ADDR); 1535 } 1536 1537 /* Gather PBM state information for both sides of this chip */ 1538 for (i = 0; i < 2; i++) { 1539 if (cb_p->cb_pci_cmn_p->pci_p[i] == NULL) 1540 continue; 1541 pci_pbm_errstate_get(((cb_t *)cb_p)->cb_pci_cmn_p-> 1542 pci_p[i], &cb_err_p->cb_pbm[i]); 1543 } 1544 } 1545 1546 static void 1547 pci_cb_clear_error(cb_t *cb_p, cb_errstate_t *cb_err_p) 1548 { 1549 uint64_t pa = ((cb_t *)cb_p)->cb_base_pa; 1550 1551 stdphysio(pa + SCHIZO_CB_ERRLOG_OFFSET, cb_err_p->cb_elog); 1552 } 1553 1554 static cb_fm_err_t safari_err_tbl[] = { 1555 SAFARI_BAD_CMD, SCHIZO_CB_ELOG_BAD_CMD, CB_FATAL, 1556 SAFARI_SSM_DIS, SCHIZO_CB_ELOG_SSM_DIS, CB_FATAL, 1557 SAFARI_BAD_CMD_PCIA, SCHIZO_CB_ELOG_BAD_CMD_PCIA, CB_FATAL, 1558 SAFARI_BAD_CMD_PCIB, SCHIZO_CB_ELOG_BAD_CMD_PCIB, CB_FATAL, 1559 SAFARI_PAR_ERR_INT_PCIB, XMITS_CB_ELOG_PAR_ERR_INT_PCIB, CB_FATAL, 1560 SAFARI_PAR_ERR_INT_PCIA, XMITS_CB_ELOG_PAR_ERR_INT_PCIA, CB_FATAL, 1561 SAFARI_PAR_ERR_INT_SAF, XMITS_CB_ELOG_PAR_ERR_INT_SAF, CB_FATAL, 1562 SAFARI_PLL_ERR_PCIB, XMITS_CB_ELOG_PLL_ERR_PCIB, CB_FATAL, 1563 SAFARI_PLL_ERR_PCIA, XMITS_CB_ELOG_PLL_ERR_PCIA, CB_FATAL, 1564 SAFARI_PLL_ERR_SAF, XMITS_CB_ELOG_PLL_ERR_SAF, CB_FATAL, 1565 SAFARI_SAF_CIQ_TO, SCHIZO_CB_ELOG_SAF_CIQ_TO, CB_FATAL, 1566 SAFARI_SAF_LPQ_TO, SCHIZO_CB_ELOG_SAF_LPQ_TO, CB_FATAL, 1567 SAFARI_SAF_SFPQ_TO, SCHIZO_CB_ELOG_SAF_SFPQ_TO, CB_FATAL, 1568 SAFARI_APERR, SCHIZO_CB_ELOG_ADDR_PAR_ERR, CB_FATAL, 1569 SAFARI_UNMAP_ERR, SCHIZO_CB_ELOG_UNMAP_ERR, CB_FATAL, 1570 SAFARI_BUS_ERR, SCHIZO_CB_ELOG_BUS_ERR, CB_FATAL, 1571 SAFARI_TO_ERR, SCHIZO_CB_ELOG_TO_ERR, CB_FATAL, 1572 SAFARI_DSTAT_ERR, SCHIZO_CB_ELOG_DSTAT_ERR, CB_FATAL, 1573 SAFARI_SAF_UFPQ_TO, SCHIZO_CB_ELOG_SAF_UFPQ_TO, CB_FATAL, 1574 SAFARI_CPU0_PAR_SINGLE, SCHIZO_CB_ELOG_CPU0_PAR_SINGLE, CB_FATAL, 1575 SAFARI_CPU0_PAR_BIDI, SCHIZO_CB_ELOG_CPU0_PAR_BIDI, CB_FATAL, 1576 SAFARI_CPU1_PAR_SINGLE, SCHIZO_CB_ELOG_CPU1_PAR_SINGLE, CB_FATAL, 1577 SAFARI_CPU1_PAR_BIDI, SCHIZO_CB_ELOG_CPU1_PAR_BIDI, CB_FATAL, 1578 NULL, NULL, NULL, 1579 }; 1580 1581 /* 1582 * Function used to handle and log Safari bus errors. 1583 */ 1584 static int 1585 safari_err_handler(dev_info_t *dip, uint64_t fme_ena, 1586 cb_errstate_t *cb_err_p) 1587 { 1588 int i; 1589 int fatal = 0; 1590 pci_t *pci_p = get_pci_soft_state(ddi_get_instance(dip)); 1591 pci_common_t *cmn_p = pci_p->pci_common_p; 1592 1593 ASSERT(MUTEX_HELD(&cmn_p->pci_fm_mutex)); 1594 1595 for (i = 0; safari_err_tbl[i].cb_err_class != NULL; i++) { 1596 if (cb_err_p->cb_elog & safari_err_tbl[i].cb_reg_bit) { 1597 cb_err_p->cb_err_class = safari_err_tbl[i].cb_err_class; 1598 cb_ereport_post(dip, fme_ena, cb_err_p); 1599 fatal += safari_err_tbl[i].cb_fatal; 1600 } 1601 } 1602 1603 if (fatal) 1604 return (DDI_FM_FATAL); 1605 return (DDI_FM_OK); 1606 1607 } 1608 1609 /* 1610 * Check pbm va log register for captured errant address, and fail handle 1611 * if in per device cache. 1612 * Called from jbus_err_handler. 1613 */ 1614 static int 1615 jbus_check_va_log(cb_t *cb_p, uint64_t fme_ena, 1616 cb_errstate_t *cb_err_p) 1617 { 1618 int i; 1619 int ret = DDI_FM_FATAL; 1620 pci_common_t *cmn_p = cb_p->cb_pci_cmn_p; 1621 1622 ASSERT(MUTEX_HELD(&cmn_p->pci_fm_mutex)); 1623 /* 1624 * Check VA log register for address associated with error, 1625 * if no address is registered then return failure 1626 */ 1627 for (i = 0; i < 2; i++) { 1628 1629 if (cb_p->cb_pci_cmn_p->pci_p[i] == NULL) 1630 continue; 1631 /* 1632 * Look up and fault handle associated with 1633 * logged DMA address 1634 */ 1635 if (cb_err_p->cb_pbm[i].pbm_va_log) { 1636 void *addr = (void *)&cb_err_p->cb_pbm[i].pbm_va_log; 1637 ret = ndi_fmc_error(cb_p->cb_pci_cmn_p->pci_p[i]-> 1638 pci_dip, NULL, DMA_HANDLE, fme_ena, 1639 (void *)addr); 1640 if (ret == DDI_FM_NONFATAL) 1641 break; 1642 } 1643 } 1644 return (ret); 1645 } 1646 1647 static cb_fm_err_t jbus_err_tbl[] = { 1648 JBUS_APERR, SCHIZO_CB_ELOG_ADDR_PAR_ERR, CB_FATAL, 1649 JBUS_PWR_DATA_PERR, TOMATILLO_CB_ELOG_WR_DATA_PAR_ERR, CB_FATAL, 1650 JBUS_DRD_DATA_PERR, TOMATILLO_CB_ELOG_RD_DATA_PAR_ERR, CB_NONFATAL, 1651 JBUS_CTL_PERR, TOMATILLO_CB_ELOG_CTL_PAR_ERR, CB_FATAL, 1652 JBUS_ILL_BYTE_EN, TOMATILLO_CB_ELOG_ILL_BYTE_EN, CB_FATAL, 1653 JBUS_ILL_COH_IN, TOMATILLO_CB_ELOG_ILL_COH_IN, CB_FATAL, 1654 JBUS_SNOOP_ERR_RD, TOMATILLO_CB_ELOG_SNOOP_ERR_RD, CB_FATAL, 1655 JBUS_SNOOP_ERR_RDS, TOMATILLO_CB_ELOG_SNOOP_ERR_RDS, CB_FATAL, 1656 JBUS_SNOOP_ERR_RDSA, TOMATILLO_CB_ELOG_SNOOP_ERR_RDSA, CB_FATAL, 1657 JBUS_SNOOP_ERR_OWN, TOMATILLO_CB_ELOG_SNOOP_ERR_OWN, CB_FATAL, 1658 JBUS_SNOOP_ERR_RDO, TOMATILLO_CB_ELOG_SNOOP_ERR_RDO, CB_FATAL, 1659 JBUS_SNOOP_ERR_PCI, TOMATILLO_CB_ELOG_SNOOP_ERR_PCI, CB_FATAL, 1660 JBUS_SNOOP_ERR_GR, TOMATILLO_CB_ELOG_SNOOP_ERR_GR, CB_FATAL, 1661 JBUS_SNOOP_ERR, TOMATILLO_CB_ELOG_SNOOP_ERR, CB_FATAL, 1662 JBUS_BAD_CMD, SCHIZO_CB_ELOG_BAD_CMD, CB_FATAL, 1663 JBUS_UNMAP_ERR, SCHIZO_CB_ELOG_UNMAP_ERR, CB_NONFATAL, 1664 JBUS_TO_EXP_ERR, TOMATILLO_CB_ELOG_TO_EXP_ERR, CB_NONFATAL, 1665 JBUS_TO_ERR, SCHIZO_CB_ELOG_TO_ERR, CB_NONFATAL, 1666 JBUS_BUS_ERR, SCHIZO_CB_ELOG_BUS_ERR, CB_NONFATAL, 1667 NULL, NULL, NULL, 1668 }; 1669 1670 /* 1671 * Function used to handle and log Jbus errors. 1672 */ 1673 static int 1674 jbus_err_handler(dev_info_t *dip, uint64_t fme_ena, 1675 cb_errstate_t *cb_err_p) 1676 { 1677 int fatal = 0; 1678 int nonfatal = 0; 1679 int i; 1680 pci_t *pci_p = get_pci_soft_state(ddi_get_instance(dip)); 1681 cb_t *cb_p = pci_p->pci_cb_p; 1682 1683 ASSERT(MUTEX_HELD(&pci_p->pci_common_p->pci_fm_mutex)); 1684 1685 for (i = 0; jbus_err_tbl[i].cb_err_class != NULL; i++) { 1686 if (!(cb_err_p->cb_elog & jbus_err_tbl[i].cb_reg_bit)) 1687 continue; 1688 cb_err_p->cb_err_class = jbus_err_tbl[i].cb_err_class; 1689 if (jbus_err_tbl[i].cb_fatal) { 1690 fatal += jbus_err_tbl[i].cb_fatal; 1691 continue; 1692 } 1693 if (jbus_check_va_log(cb_p, fme_ena, cb_err_p) 1694 != DDI_FM_NONFATAL) { 1695 fatal++; 1696 } 1697 cb_ereport_post(dip, fme_ena, cb_err_p); 1698 } 1699 1700 return (fatal ? DDI_FM_FATAL : (nonfatal ? DDI_FM_NONFATAL : 1701 DDI_FM_OK)); 1702 } 1703 1704 /* 1705 * Control Block error interrupt handler. 1706 */ 1707 uint_t 1708 cb_buserr_intr(caddr_t a) 1709 { 1710 cb_t *cb_p = (cb_t *)a; 1711 pci_common_t *cmn_p = cb_p->cb_pci_cmn_p; 1712 pci_t *pci_p = cmn_p->pci_p[0]; 1713 cb_errstate_t cb_err; 1714 ddi_fm_error_t derr; 1715 int ret = DDI_FM_FATAL; 1716 int i; 1717 1718 if (pci_p == NULL) 1719 pci_p = cmn_p->pci_p[1]; 1720 1721 bzero(&derr, sizeof (ddi_fm_error_t)); 1722 derr.fme_version = DDI_FME_VERSION; 1723 derr.fme_ena = fm_ena_generate(0, FM_ENA_FMT1); 1724 1725 mutex_enter(&cmn_p->pci_fm_mutex); 1726 1727 pci_cb_errstate_get(cb_p, &cb_err); 1728 1729 if (CB_CHIP_TYPE(cb_p) == PCI_CHIP_TOMATILLO) 1730 ret = jbus_err_handler(pci_p->pci_dip, derr.fme_ena, &cb_err); 1731 else if ((CB_CHIP_TYPE(cb_p) == PCI_CHIP_SCHIZO) || 1732 (CB_CHIP_TYPE(cb_p) == PCI_CHIP_XMITS)) 1733 ret = safari_err_handler(pci_p->pci_dip, derr.fme_ena, 1734 &cb_err); 1735 1736 /* 1737 * Check for related errors in PBM and IOMMU. The IOMMU could cause 1738 * a timeout on the jbus due to an IOMMU miss, so we need to check and 1739 * log the IOMMU error registers. 1740 */ 1741 for (i = 0; i < 2; i++) { 1742 if (cmn_p->pci_p[i] == NULL) 1743 continue; 1744 if (pci_pbm_err_handler(cmn_p->pci_p[i]->pci_dip, &derr, 1745 (void *)cmn_p->pci_p[i], PCI_CB_CALL) == DDI_FM_FATAL) 1746 ret = DDI_FM_FATAL; 1747 } 1748 1749 /* Cleanup and reset error bits */ 1750 (void) pci_cb_clear_error(cb_p, &cb_err); 1751 mutex_exit(&cmn_p->pci_fm_mutex); 1752 1753 if (ret == DDI_FM_FATAL) { 1754 fm_panic("Fatal System Bus Error has occurred\n"); 1755 } 1756 1757 return (DDI_INTR_CLAIMED); 1758 } 1759 1760 static ecc_fm_err_t ecc_err_tbl[] = { 1761 PCI_ECC_PIO_UE, COMMON_ECC_AFSR_E_PIO, CBNINTR_UE, 1762 PBM_PRIMARY, SCHIZO_ECC_AFAR_PIOW_UPA64S, SCH_REG_UPA, 1763 ACC_HANDLE, 1764 1765 PCI_ECC_PIO_UE, COMMON_ECC_AFSR_E_PIO, CBNINTR_UE, 1766 PBM_PRIMARY, SCHIZO_ECC_AFAR_PIOW_PCIA_REG, SCH_REG_PCIA_REG, 1767 ACC_HANDLE, 1768 1769 PCI_ECC_PIO_UE, COMMON_ECC_AFSR_E_PIO, CBNINTR_UE, 1770 PBM_PRIMARY, SCHIZO_ECC_AFAR_PIOW_PCIA_MEM, SCH_REG_PCIA_MEM, 1771 ACC_HANDLE, 1772 1773 PCI_ECC_PIO_UE, COMMON_ECC_AFSR_E_PIO, CBNINTR_UE, 1774 PBM_PRIMARY, SCHIZO_ECC_AFAR_PIOW_PCIA_CFGIO, SCH_REG_PCIA_CFGIO, 1775 ACC_HANDLE, 1776 1777 PCI_ECC_PIO_UE, COMMON_ECC_AFSR_E_PIO, CBNINTR_UE, 1778 PBM_PRIMARY, SCHIZO_ECC_AFAR_PIOW_PCIB_REG, SCH_REG_PCIB_REG, 1779 ACC_HANDLE, 1780 1781 PCI_ECC_PIO_UE, COMMON_ECC_AFSR_E_PIO, CBNINTR_UE, 1782 PBM_PRIMARY, SCHIZO_ECC_AFAR_PIOW_PCIB_MEM, SCH_REG_PCIB_MEM, 1783 ACC_HANDLE, 1784 1785 PCI_ECC_PIO_UE, COMMON_ECC_AFSR_E_PIO, CBNINTR_UE, 1786 PBM_PRIMARY, SCHIZO_ECC_AFAR_PIOW_PCIB_CFGIO, SCH_REG_PCIB_CFGIO, 1787 ACC_HANDLE, 1788 1789 PCI_ECC_PIO_UE, COMMON_ECC_AFSR_E_PIO, CBNINTR_UE, 1790 PBM_PRIMARY, SCHIZO_ECC_AFAR_PIOW_SAFARI_REGS, SCH_REG_SAFARI_REGS, 1791 ACC_HANDLE, 1792 1793 PCI_ECC_SEC_PIO_UE, COMMON_ECC_AFSR_E_PIO, CBNINTR_UE, 1794 PBM_SECONDARY, NULL, NULL, ACC_HANDLE, 1795 1796 PCI_ECC_PIO_CE, COMMON_ECC_AFSR_E_PIO, CBNINTR_CE, 1797 PBM_PRIMARY, NULL, NULL, ACC_HANDLE, 1798 1799 PCI_ECC_SEC_PIO_CE, COMMON_ECC_AFSR_E_PIO, CBNINTR_CE, 1800 PBM_SECONDARY, NULL, NULL, ACC_HANDLE, 1801 1802 PCI_ECC_DRD_UE, COMMON_ECC_AFSR_E_DRD, CBNINTR_UE, 1803 PBM_PRIMARY, NULL, NULL, DMA_HANDLE, 1804 1805 PCI_ECC_SEC_DRD_UE, COMMON_ECC_AFSR_E_DRD, CBNINTR_UE, 1806 PBM_SECONDARY, NULL, NULL, DMA_HANDLE, 1807 1808 PCI_ECC_DRD_CE, COMMON_ECC_AFSR_E_DRD, CBNINTR_CE, 1809 PBM_PRIMARY, NULL, NULL, DMA_HANDLE, 1810 1811 PCI_ECC_SEC_DRD_CE, COMMON_ECC_AFSR_E_DRD, CBNINTR_CE, 1812 PBM_SECONDARY, NULL, NULL, DMA_HANDLE, 1813 1814 PCI_ECC_DWR_UE, COMMON_ECC_AFSR_E_DWR, CBNINTR_UE, 1815 PBM_PRIMARY, NULL, NULL, DMA_HANDLE, 1816 1817 PCI_ECC_SEC_DWR_UE, COMMON_ECC_AFSR_E_DWR, CBNINTR_UE, 1818 PBM_SECONDARY, NULL, NULL, DMA_HANDLE, 1819 1820 PCI_ECC_DWR_CE, COMMON_ECC_AFSR_E_DWR, CBNINTR_CE, 1821 PBM_PRIMARY, NULL, NULL, DMA_HANDLE, 1822 1823 PCI_ECC_SEC_DWR_CE, COMMON_ECC_AFSR_E_DWR, CBNINTR_CE, 1824 PBM_SECONDARY, NULL, NULL, DMA_HANDLE, 1825 1826 NULL, NULL, NULL, NULL, NULL, NULL, 1827 }; 1828 1829 /* 1830 * pci_ecc_classify, called by ecc_handler to classify ecc errors 1831 * and determine if we should panic or not. 1832 */ 1833 void 1834 pci_ecc_classify(uint64_t err, ecc_errstate_t *ecc_err_p) 1835 { 1836 struct async_flt *ecc_p = &ecc_err_p->ecc_aflt; 1837 uint64_t region, afar = ecc_p->flt_addr; 1838 int i, j, ret = 0; 1839 int flag, fatal = 0; 1840 pci_common_t *cmn_p = ecc_err_p->ecc_ii_p.ecc_p->ecc_pci_cmn_p; 1841 pci_t *pci_p = cmn_p->pci_p[0]; 1842 1843 ASSERT(MUTEX_HELD(&cmn_p->pci_fm_mutex)); 1844 1845 ecc_err_p->ecc_bridge_type = PCI_BRIDGE_TYPE(cmn_p); 1846 1847 if (pci_p == NULL) 1848 pci_p = cmn_p->pci_p[1]; 1849 1850 ecc_err_p->ecc_ctrl = lddphysio(ecc_err_p->ecc_ii_p.ecc_p->ecc_csr_pa); 1851 ecc_err_p->ecc_err_addr = afar; 1852 region = afar & SCHIZO_ECC_AFAR_PIOW_MASK; 1853 1854 for (i = 0; ecc_err_tbl[i].ecc_err_class != NULL; i++) { 1855 if (!(err & ecc_err_tbl[i].ecc_reg_bit) || 1856 (ecc_err_p->ecc_ii_p.ecc_type != 1857 ecc_err_tbl[i].ecc_type) || 1858 (ecc_err_p->ecc_pri != ecc_err_tbl[i].ecc_pri)) 1859 continue; 1860 1861 ecc_p->flt_erpt_class = ecc_err_tbl[i].ecc_err_class; 1862 flag = ecc_err_tbl[i].ecc_flag; 1863 1864 if (!ecc_err_tbl[i].ecc_pri || 1865 (ecc_err_tbl[i].ecc_type == CBNINTR_CE)) { 1866 fatal += (ecc_err_tbl[i].ecc_type == CBNINTR_UE) ? 1867 1 : 0; 1868 break; 1869 } 1870 1871 if (flag == ACC_HANDLE && 1872 (region & ecc_err_tbl[i].ecc_region_bits)) { 1873 ecc_err_p->ecc_region = ecc_err_tbl[i].ecc_region; 1874 pci_format_ecc_addr(pci_p->pci_dip, 1875 &ecc_err_p->ecc_err_addr, 1876 ecc_err_p->ecc_region); 1877 } 1878 1879 /* 1880 * Lookup and fault errant handle 1881 */ 1882 for (j = 0; j < 2; ++j) { 1883 ret = DDI_FM_UNKNOWN; 1884 if (cmn_p->pci_p[j] == NULL) 1885 continue; 1886 ret = ndi_fmc_error(cmn_p->pci_p[j]->pci_dip, NULL, 1887 flag, ecc_err_p->ecc_ena, 1888 (void *)&ecc_err_p->ecc_err_addr); 1889 if (ret == DDI_FM_NONFATAL) { 1890 fatal = 0; 1891 break; 1892 } else 1893 fatal++; 1894 } 1895 break; 1896 } 1897 1898 if (fatal) 1899 ecc_p->flt_panic = 1; 1900 else if (flag != ACC_HANDLE) 1901 ecc_err_p->ecc_pg_ret = 1; 1902 } 1903 1904 /* 1905 * Tables to define PCI-X Split Completion errors 1906 */ 1907 1908 pcix_err_msg_rec_t pcix_completer_errs[] = { 1909 {PCIX_CPLT_OUT_OF_RANGE, "pcix", "oor" }, 1910 }; 1911 1912 pcix_err_tbl_t pcix_split_errs_tbl[] = { 1913 {PCIX_CLASS_CPLT, 1914 sizeof (pcix_completer_errs)/sizeof (pcix_err_msg_rec_t), 1915 pcix_completer_errs }, 1916 }; 1917 1918 /* 1919 * Tables for the PCI-X error status messages 1920 */ 1921 pcix_err_msg_rec_t pcix_stat_errs[] = { 1922 {XMITS_PCIX_STAT_SC_DSCRD, "pcix", "discard" }, 1923 {XMITS_PCIX_STAT_SC_TTO, "xmits.pbmx", "tato" }, 1924 {XMITS_PCIX_STAT_SMMU, "xmits.pbmx", "stmmu" }, 1925 {XMITS_PCIX_STAT_SDSTAT, "xmits.pbmx", "stdst" }, 1926 {XMITS_PCIX_STAT_CMMU, "xmits.pbmx", "cnmmu" }, 1927 {XMITS_PCIX_STAT_CDSTAT, "xmits.pbmx", "cndst" } 1928 }; 1929 1930 pcix_err_tbl_t pcix_stat_errs_tbl = 1931 {PCIX_NO_CLASS, 1932 sizeof (pcix_stat_errs)/sizeof (pcix_err_msg_rec_t), 1933 pcix_stat_errs }; 1934 1935 1936 /* 1937 * walk thru a table of error messages, printing as appropriate 1938 * 1939 * t - the table of messages to parse 1940 * err - the error to match against 1941 * multi - flag, sometimes multiple error bits may be set/desired 1942 */ 1943 static int 1944 pcix_lookup_err_msgs(dev_info_t *dip, uint64_t ena, pcix_err_tbl_t t, 1945 pbm_errstate_t *pbm_err_p) 1946 { 1947 uint32_t err_bits = pbm_err_p->pbm_err & XMITS_PCIX_MSG_INDEX_MASK; 1948 int nerr = 0; 1949 int j; 1950 char buf[FM_MAX_CLASS]; 1951 1952 for (j = 0; j < t.err_rec_num; j++) { 1953 uint32_t msg_key = t.err_msg_tbl[j].msg_key; 1954 if (pbm_err_p->pbm_multi ? !(err_bits & msg_key) : err_bits 1955 != msg_key) 1956 continue; 1957 1958 (void) snprintf(buf, FM_MAX_CLASS, "%s.%s%s", 1959 t.err_msg_tbl[j].msg_class, 1960 pbm_err_p->pbm_pri ? "" : PCIX_SECONDARY, 1961 t.err_msg_tbl[j].msg_str); 1962 1963 pbm_err_p->pbm_err_class = buf; 1964 pcix_ereport_post(dip, ena, pbm_err_p); 1965 nerr++; 1966 } 1967 return (nerr ? DDI_FM_FATAL : DDI_FM_OK); 1968 } 1969 1970 /* 1971 * Decodes primary(bit 27-24) or secondary(bit 15-12) PCI-X split 1972 * completion error message class and index in PBM AFSR. 1973 */ 1974 static void 1975 pcix_log_split_err(dev_info_t *dip, uint64_t ena, pbm_errstate_t *pbm_err_p) 1976 { 1977 uint32_t class = pbm_err_p->pbm_err & XMITS_PCIX_MSG_CLASS_MASK; 1978 uint32_t num_classes = sizeof (pcix_split_errs_tbl) / 1979 sizeof (struct pcix_err_tbl); 1980 int i; 1981 1982 for (i = 0; i < num_classes; i++) { 1983 if (class == pcix_split_errs_tbl[i].err_class) { 1984 pbm_err_p->pbm_multi = PCIX_SINGLE_ERR; 1985 (void) pcix_lookup_err_msgs(dip, ena, 1986 pcix_split_errs_tbl[i], pbm_err_p); 1987 break; 1988 } 1989 } 1990 } 1991 1992 /* 1993 * Report PBM PCI-X Error Status Register if in PCI-X mode 1994 * 1995 * Once a PCI-X fault tree is constructed, the code below may need to 1996 * change. 1997 */ 1998 static int 1999 pcix_log_pbm(pci_t *pci_p, uint64_t ena, pbm_errstate_t *pbm_err_p) 2000 { 2001 int fatal = 0; 2002 int nonfatal = 0; 2003 uint32_t e; 2004 2005 ASSERT(MUTEX_HELD(&pci_p->pci_common_p->pci_fm_mutex)); 2006 2007 DEBUG3(DBG_ERR_INTR, pci_p->pci_dip, "pcix_log_pbm: chip_type=%d " 2008 "ctr_stat=%lx afsr = 0x%lx", CHIP_TYPE(pci_p), 2009 pbm_err_p->pbm_ctl_stat, pbm_err_p->pbm_afsr); 2010 2011 if (!(CHIP_TYPE(pci_p) == PCI_CHIP_XMITS) || 2012 !(pbm_err_p->pbm_ctl_stat & XMITS_PCI_CTRL_X_MODE)) 2013 return (DDI_FM_OK); 2014 2015 if (pbm_err_p->pbm_afsr & XMITS_PCI_X_AFSR_P_SC_ERR) { 2016 pbm_err_p->pbm_err = PBM_AFSR_TO_PRISPLIT(pbm_err_p->pbm_afsr); 2017 pbm_err_p->pbm_pri = PBM_PRIMARY; 2018 pcix_log_split_err(pci_p->pci_dip, ena, pbm_err_p); 2019 nonfatal++; 2020 } 2021 if (pbm_err_p->pbm_afsr & XMITS_PCI_X_AFSR_S_SC_ERR) { 2022 pbm_err_p->pbm_err = PBM_AFSR_TO_PRISPLIT(pbm_err_p->pbm_afsr); 2023 pbm_err_p->pbm_pri = PBM_PRIMARY; 2024 pcix_log_split_err(pci_p->pci_dip, ena, pbm_err_p); 2025 nonfatal++; 2026 } 2027 2028 e = PBM_PCIX_TO_PRIERR(pbm_err_p->pbm_pcix_stat); 2029 if (e) { 2030 pbm_err_p->pbm_pri = PBM_PRIMARY; 2031 pbm_err_p->pbm_err = e; 2032 pbm_err_p->pbm_multi = PCIX_MULTI_ERR; 2033 if (pcix_lookup_err_msgs(pci_p->pci_dip, ena, 2034 pcix_stat_errs_tbl, pbm_err_p) == DDI_FM_FATAL) 2035 fatal++; 2036 else 2037 nonfatal++; 2038 } 2039 2040 e = PBM_PCIX_TO_SECERR(pbm_err_p->pbm_pcix_stat); 2041 if (e) { 2042 pbm_err_p->pbm_pri = PBM_SECONDARY; 2043 pbm_err_p->pbm_err = e; 2044 pbm_err_p->pbm_multi = PCIX_MULTI_ERR; 2045 if (pcix_lookup_err_msgs(pci_p->pci_dip, ena, 2046 pcix_stat_errs_tbl, pbm_err_p) == DDI_FM_FATAL) 2047 fatal++; 2048 else 2049 nonfatal++; 2050 } 2051 2052 if (!fatal && !nonfatal) 2053 return (DDI_FM_OK); 2054 else if (fatal) 2055 return (DDI_FM_FATAL); 2056 return (DDI_FM_NONFATAL); 2057 } 2058 2059 static pbm_fm_err_t pbm_err_tbl[] = { 2060 PCI_MA, SCHIZO_PCI_AFSR_E_MA, PBM_PRIMARY, 2061 FM_LOG_PCI, PCI_TARG_MA, 2062 2063 PCI_SEC_MA, SCHIZO_PCI_AFSR_E_MA, PBM_SECONDARY, 2064 FM_LOG_PBM, NULL, 2065 2066 PCI_REC_TA, SCHIZO_PCI_AFSR_E_TA, PBM_PRIMARY, 2067 FM_LOG_PCI, PCI_TARG_REC_TA, 2068 2069 PCI_SEC_REC_TA, SCHIZO_PCI_AFSR_E_TA, PBM_SECONDARY, 2070 FM_LOG_PBM, NULL, 2071 2072 PCI_PBM_RETRY, SCHIZO_PCI_AFSR_E_RTRY, PBM_PRIMARY, 2073 FM_LOG_PBM, PCI_PBM_TARG_RETRY, 2074 2075 PCI_SEC_PBM_RETRY, SCHIZO_PCI_AFSR_E_RTRY, PBM_SECONDARY, 2076 FM_LOG_PBM, NULL, 2077 2078 PCI_MDPE, SCHIZO_PCI_AFSR_E_PERR, PBM_PRIMARY, 2079 FM_LOG_PCI, PCI_TARG_MDPE, 2080 2081 PCI_SEC_MDPE, SCHIZO_PCI_AFSR_E_PERR, PBM_SECONDARY, 2082 FM_LOG_PBM, NULL, 2083 2084 PCI_PBM_TTO, SCHIZO_PCI_AFSR_E_TTO, PBM_PRIMARY, 2085 FM_LOG_PBM, PCI_PBM_TARG_TTO, 2086 2087 PCI_SEC_PBM_TTO, SCHIZO_PCI_AFSR_E_TTO, PBM_SECONDARY, 2088 FM_LOG_PBM, NULL, 2089 2090 PCI_SCH_BUS_UNUSABLE_ERR, SCHIZO_PCI_AFSR_E_UNUSABLE, PBM_PRIMARY, 2091 FM_LOG_PBM, NULL, 2092 2093 PCI_SEC_SCH_BUS_UNUSABLE_ERR, SCHIZO_PCI_AFSR_E_UNUSABLE, PBM_SECONDARY, 2094 FM_LOG_PBM, NULL, 2095 2096 NULL, NULL, NULL, 2097 NULL, NULL, 2098 }; 2099 2100 2101 /* 2102 * pci_pbm_classify, called by pbm_afsr_report to classify piow afsr. 2103 */ 2104 int 2105 pci_pbm_classify(pbm_errstate_t *pbm_err_p) 2106 { 2107 uint32_t err; 2108 int nerr = 0; 2109 int i; 2110 2111 err = pbm_err_p->pbm_pri ? PBM_AFSR_TO_PRIERR(pbm_err_p->pbm_afsr): 2112 PBM_AFSR_TO_SECERR(pbm_err_p->pbm_afsr); 2113 2114 for (i = 0; pbm_err_tbl[i].pbm_err_class != NULL; i++) { 2115 if ((err & pbm_err_tbl[i].pbm_reg_bit) && 2116 (pbm_err_p->pbm_pri == pbm_err_tbl[i].pbm_pri)) { 2117 if (pbm_err_tbl[i].pbm_flag == FM_LOG_PCI) 2118 pbm_err_p->pbm_pci.pci_err_class = 2119 pbm_err_tbl[i].pbm_err_class; 2120 else 2121 pbm_err_p->pbm_err_class = 2122 pbm_err_tbl[i].pbm_err_class; 2123 2124 pbm_err_p->pbm_terr_class = 2125 pbm_err_tbl[i].pbm_terr_class; 2126 pbm_err_p->pbm_log = pbm_err_tbl[i].pbm_flag; 2127 nerr++; 2128 break; 2129 } 2130 } 2131 2132 return (nerr); 2133 } 2134 2135 /* 2136 * Function used to handle and log IOMMU errors. Called by pci_pbm_err_handler, 2137 * with pci_fm_mutex held. 2138 */ 2139 static int 2140 iommu_err_handler(dev_info_t *dip, uint64_t ena, pbm_errstate_t *pbm_err_p) 2141 { 2142 pci_t *pci_p = get_pci_soft_state(ddi_get_instance(dip)); 2143 iommu_t *iommu_p = pci_p->pci_iommu_p; 2144 ecc_t *ecc_p = pci_p->pci_ecc_p; 2145 uint64_t stat; 2146 ushort_t ta_signalled; 2147 int err = 0; 2148 int fatal = 0; 2149 int nonfatal = 0; 2150 int ret; 2151 2152 ASSERT(MUTEX_HELD(&ecc_p->ecc_pci_cmn_p->pci_fm_mutex)); 2153 if (!((stat = *iommu_p->iommu_ctrl_reg) & TOMATILLO_IOMMU_ERR)) { 2154 pbm_err_p->pbm_err_class = PCI_SCH_MMU_ERR; 2155 iommu_ereport_post(dip, ena, pbm_err_p); 2156 return (DDI_FM_NONFATAL); 2157 } 2158 2159 /* 2160 * Need to make sure a Target Abort was signalled to the device if 2161 * we have any hope of recovering. Tomatillo does not send a TA for 2162 * DMA Writes that result in a Translation Error, thus fooling the 2163 * device into believing everything is as it expects. Ignorance 2164 * is bliss, but knowledge is power. 2165 */ 2166 ta_signalled = pbm_err_p->pbm_pci.pci_cfg_stat & 2167 PCI_STAT_S_TARG_AB; 2168 2169 if (stat & TOMATILLO_IOMMU_ERR_ILLTSBTBW) { 2170 pbm_err_p->pbm_err_class = PCI_TOM_MMU_BAD_TSBTBW; 2171 err = 1; 2172 iommu_ereport_post(dip, ena, pbm_err_p); 2173 if (!ta_signalled) 2174 fatal++; 2175 else 2176 nonfatal++; 2177 } 2178 2179 if (stat & TOMATILLO_IOMMU_ERR_BAD_VA) { 2180 pbm_err_p->pbm_err_class = PCI_TOM_MMU_BAD_VA; 2181 err = 1; 2182 iommu_ereport_post(dip, ena, pbm_err_p); 2183 if (!ta_signalled) 2184 fatal++; 2185 else 2186 nonfatal++; 2187 } 2188 2189 if (!err) { 2190 stat = ((stat & TOMATILLO_IOMMU_ERRSTS) >> 2191 TOMATILLO_IOMMU_ERRSTS_SHIFT); 2192 switch (stat) { 2193 case TOMATILLO_IOMMU_PROTECTION_ERR: 2194 pbm_err_p->pbm_err_class = PCI_TOM_MMU_PROT_ERR; 2195 iommu_ereport_post(dip, ena, pbm_err_p); 2196 fatal++; 2197 break; 2198 case TOMATILLO_IOMMU_INVALID_ERR: 2199 pbm_err_p->pbm_err_class = PCI_TOM_MMU_INVAL_ERR; 2200 /* 2201 * Fault the address in iommu_tfar 2202 * register to inform target driver of error 2203 */ 2204 ret = ndi_fmc_error(pci_p->pci_dip, NULL, DMA_HANDLE, 2205 ena, (void *)&pbm_err_p->pbm_iommu.iommu_tfar); 2206 2207 if (ret != DDI_FM_NONFATAL) 2208 if (ta_signalled) 2209 nonfatal++; 2210 else 2211 fatal++; 2212 else 2213 nonfatal++; 2214 2215 iommu_ereport_post(dip, ena, pbm_err_p); 2216 break; 2217 case TOMATILLO_IOMMU_TIMEOUT_ERR: 2218 pbm_err_p->pbm_err_class = PCI_TOM_MMU_TO_ERR; 2219 fatal++; 2220 iommu_ereport_post(dip, ena, pbm_err_p); 2221 break; 2222 case TOMATILLO_IOMMU_ECC_ERR: 2223 pbm_err_p->pbm_err_class = PCI_TOM_MMU_UE; 2224 iommu_ereport_post(dip, ena, pbm_err_p); 2225 break; 2226 } 2227 } 2228 2229 if (fatal) 2230 return (DDI_FM_FATAL); 2231 else if (nonfatal) 2232 return (DDI_FM_NONFATAL); 2233 2234 return (DDI_FM_OK); 2235 } 2236 2237 int 2238 pci_check_error(pci_t *pci_p) 2239 { 2240 pbm_t *pbm_p = pci_p->pci_pbm_p; 2241 uint16_t pci_cfg_stat; 2242 uint64_t pbm_ctl_stat, pbm_afsr, pbm_pcix_stat; 2243 caddr_t a = pci_p->pci_address[0]; 2244 uint64_t *pbm_pcix_stat_reg; 2245 2246 ASSERT(MUTEX_HELD(&pci_p->pci_common_p->pci_fm_mutex)); 2247 2248 pci_cfg_stat = pbm_p->pbm_config_header->ch_status_reg; 2249 pbm_ctl_stat = *pbm_p->pbm_ctrl_reg; 2250 pbm_afsr = *pbm_p->pbm_async_flt_status_reg; 2251 2252 if ((pci_cfg_stat & (PCI_STAT_S_PERROR | PCI_STAT_S_TARG_AB | 2253 PCI_STAT_R_TARG_AB | PCI_STAT_R_MAST_AB | 2254 PCI_STAT_S_SYSERR | PCI_STAT_PERROR)) || 2255 (pbm_ctl_stat & (SCHIZO_PCI_CTRL_BUS_UNUSABLE | 2256 TOMATILLO_PCI_CTRL_PCI_DTO_ERR | 2257 SCHIZO_PCI_CTRL_PCI_TTO_ERR | 2258 SCHIZO_PCI_CTRL_PCI_RTRY_ERR | 2259 SCHIZO_PCI_CTRL_PCI_MMU_ERR | 2260 COMMON_PCI_CTRL_SBH_ERR | 2261 COMMON_PCI_CTRL_SERR)) || 2262 (PBM_AFSR_TO_PRIERR(pbm_afsr))) 2263 return (1); 2264 2265 if ((CHIP_TYPE(pci_p) == PCI_CHIP_XMITS) && 2266 (pbm_ctl_stat & XMITS_PCI_CTRL_X_MODE)) { 2267 2268 pbm_pcix_stat_reg = (uint64_t *)(a + 2269 XMITS_PCI_X_ERROR_STATUS_REG_OFFSET); 2270 2271 pbm_pcix_stat = *pbm_pcix_stat_reg; 2272 2273 if (PBM_PCIX_TO_PRIERR(pbm_pcix_stat)) 2274 return (1); 2275 2276 if (pbm_pcix_stat & XMITS_PCIX_STAT_PERR_RECOV_INT) 2277 return (1); 2278 } 2279 2280 return (0); 2281 2282 } 2283 2284 static pbm_fm_err_t pci_pbm_err_tbl[] = { 2285 PCI_PBM_RETRY, SCHIZO_PCI_CTRL_PCI_RTRY_ERR, 2286 NULL, PBM_NONFATAL, PCI_PBM_TARG_RETRY, 2287 2288 PCI_PBM_TTO, SCHIZO_PCI_CTRL_PCI_TTO_ERR, 2289 NULL, PBM_NONFATAL, PCI_PBM_TARG_TTO, 2290 2291 PCI_SCH_BUS_UNUSABLE_ERR, SCHIZO_PCI_CTRL_BUS_UNUSABLE, 2292 NULL, PBM_NONFATAL, NULL, 2293 2294 NULL, NULL, 2295 NULL, NULL, NULL 2296 }; 2297 2298 /* 2299 * Function used to log all PCI/PBM/IOMMU errors found in the system. 2300 * It is called by the pbm_error_intr as well as the pci_err_callback(trap 2301 * callback). To protect access we hold the pci_fm_mutex when calling 2302 * this function. 2303 */ 2304 int 2305 pci_pbm_err_handler(dev_info_t *dip, ddi_fm_error_t *derr, 2306 const void *impl_data, int caller) 2307 { 2308 int fatal = 0; 2309 int nonfatal = 0; 2310 int unknown = 0; 2311 uint32_t prierr, secerr; 2312 pbm_errstate_t pbm_err; 2313 char buf[FM_MAX_CLASS]; 2314 pci_t *pci_p = (pci_t *)impl_data; 2315 pbm_t *pbm_p = pci_p->pci_pbm_p; 2316 int i, ret = 0; 2317 2318 ASSERT(MUTEX_HELD(&pci_p->pci_common_p->pci_fm_mutex)); 2319 pci_pbm_errstate_get(pci_p, &pbm_err); 2320 2321 derr->fme_ena = derr->fme_ena ? derr->fme_ena : 2322 fm_ena_generate(0, FM_ENA_FMT1); 2323 2324 prierr = PBM_AFSR_TO_PRIERR(pbm_err.pbm_afsr); 2325 secerr = PBM_AFSR_TO_SECERR(pbm_err.pbm_afsr); 2326 2327 if (derr->fme_flag == DDI_FM_ERR_EXPECTED) { 2328 if (caller == PCI_TRAP_CALL) { 2329 /* 2330 * For ddi_caut_get treat all events as nonfatal. 2331 * The trampoline will set err_ena = 0, err_status = 2332 * NONFATAL. We only really call this function so that 2333 * pci_clear_error() and ndi_fm_handler_dispatch() will 2334 * get called. 2335 */ 2336 derr->fme_status = DDI_FM_NONFATAL; 2337 nonfatal++; 2338 goto done; 2339 } else { 2340 /* 2341 * For ddi_caut_put treat all events as nonfatal. Here 2342 * we have the handle and can call ndi_fm_acc_err_set(). 2343 */ 2344 derr->fme_status = DDI_FM_NONFATAL; 2345 ndi_fm_acc_err_set(pbm_p->pbm_excl_handle, derr); 2346 nonfatal++; 2347 goto done; 2348 } 2349 } else if (derr->fme_flag == DDI_FM_ERR_PEEK) { 2350 /* 2351 * For ddi_peek treat all events as nonfatal. We only 2352 * really call this function so that pci_clear_error() 2353 * and ndi_fm_handler_dispatch() will get called. 2354 */ 2355 nonfatal++; 2356 goto done; 2357 } else if (derr->fme_flag == DDI_FM_ERR_POKE) { 2358 /* 2359 * For ddi_poke we can treat as nonfatal if the 2360 * following conditions are met : 2361 * 1. Make sure only primary error is MA/TA 2362 * 2. Make sure no secondary error bits set 2363 * 3. check pci config header stat reg to see MA/TA is 2364 * logged. We cannot verify only MA/TA is recorded 2365 * since it gets much more complicated when a 2366 * PCI-to-PCI bridge is present. 2367 */ 2368 if ((prierr == SCHIZO_PCI_AFSR_E_MA) && !secerr && 2369 (pbm_err.pbm_pci.pci_cfg_stat & PCI_STAT_R_MAST_AB)) { 2370 nonfatal++; 2371 goto done; 2372 } else if ((*pbm_p->pbm_ctrl_reg & XMITS_PCI_CTRL_X_MODE) && 2373 pcix_ma_behind_bridge(&pbm_err)) { 2374 /* 2375 * MAs behind a PCI-X bridge get sent back to 2376 * the host as a Split Completion Error Message. 2377 * We handle this the same as the above check. 2378 */ 2379 nonfatal++; 2380 goto done; 2381 } 2382 if ((prierr == SCHIZO_PCI_AFSR_E_TA) && !secerr && 2383 (pbm_err.pbm_pci.pci_cfg_stat & PCI_STAT_R_TARG_AB)) { 2384 nonfatal++; 2385 goto done; 2386 } 2387 } 2388 2389 DEBUG2(DBG_ERR_INTR, dip, "pci_pbm_err_handler: prierr=0x%x " 2390 "secerr=0x%x", prierr, secerr); 2391 2392 if (prierr || secerr) { 2393 ret = pbm_afsr_report(dip, derr->fme_ena, &pbm_err); 2394 if (ret == DDI_FM_FATAL) 2395 fatal++; 2396 else 2397 nonfatal++; 2398 } 2399 if ((ret = pcix_log_pbm(pci_p, derr->fme_ena, &pbm_err)) 2400 == DDI_FM_FATAL) 2401 fatal++; 2402 else if (ret == DDI_FM_NONFATAL) 2403 nonfatal++; 2404 2405 if ((ret = pci_cfg_report(dip, derr, &pbm_err.pbm_pci, caller, prierr)) 2406 == DDI_FM_FATAL) 2407 fatal++; 2408 else if (ret == DDI_FM_NONFATAL) 2409 nonfatal++; 2410 2411 for (i = 0; pci_pbm_err_tbl[i].pbm_err_class != NULL; i++) { 2412 if ((pbm_err.pbm_ctl_stat & pci_pbm_err_tbl[i].pbm_reg_bit) && 2413 !prierr) { 2414 pbm_err.pbm_err_class = 2415 pci_pbm_err_tbl[i].pbm_err_class; 2416 pbm_ereport_post(dip, derr->fme_ena, &pbm_err); 2417 if (pci_pbm_err_tbl[i].pbm_flag) 2418 fatal++; 2419 else 2420 nonfatal++; 2421 if (caller == PCI_TRAP_CALL && 2422 pci_pbm_err_tbl[i].pbm_terr_class) 2423 pci_target_enqueue(derr->fme_ena, 2424 pci_pbm_err_tbl[i].pbm_terr_class, 2425 pbm_err.pbm_bridge_type, 2426 (uint64_t)derr->fme_bus_specific); 2427 } 2428 } 2429 2430 if ((pbm_err.pbm_ctl_stat & COMMON_PCI_CTRL_SBH_ERR) && 2431 (CHIP_TYPE(pci_p) != PCI_CHIP_TOMATILLO)) { 2432 pbm_err.pbm_err_class = PCI_SCH_SBH; 2433 pbm_ereport_post(dip, derr->fme_ena, &pbm_err); 2434 if (pci_panic_on_sbh_errors) 2435 fatal++; 2436 else 2437 nonfatal++; 2438 } 2439 2440 /* 2441 * PBM Received System Error - During any transaction, or 2442 * at any point on the bus, some device may detect a critical 2443 * error and signal a system error to the system. 2444 */ 2445 if (pbm_err.pbm_ctl_stat & COMMON_PCI_CTRL_SERR) { 2446 /* 2447 * may be expected (master abort from pci-pci bridge during 2448 * poke will generate SERR) 2449 */ 2450 if (derr->fme_flag != DDI_FM_ERR_POKE) { 2451 DEBUG1(DBG_ERR_INTR, dip, "pci_pbm_err_handler: " 2452 "ereport_post: %s", buf); 2453 (void) snprintf(buf, FM_MAX_CLASS, "%s.%s", 2454 PCI_ERROR_SUBCLASS, PCI_REC_SERR); 2455 ddi_fm_ereport_post(dip, buf, derr->fme_ena, 2456 DDI_NOSLEEP, FM_VERSION, DATA_TYPE_UINT8, 0, 2457 PCI_CONFIG_STATUS, DATA_TYPE_UINT16, 2458 pbm_err.pbm_pci.pci_cfg_stat, PCI_CONFIG_COMMAND, 2459 DATA_TYPE_UINT16, pbm_err.pbm_pci.pci_cfg_comm, 2460 PCI_PA, DATA_TYPE_UINT64, (uint64_t)0, NULL); 2461 } 2462 unknown++; 2463 } 2464 2465 /* 2466 * PCI Retry Timeout - Device fails to retry deferred 2467 * transaction within timeout. Only Tomatillo 2468 */ 2469 if (pbm_err.pbm_ctl_stat & TOMATILLO_PCI_CTRL_PCI_DTO_ERR) { 2470 if (pci_dto_fault_warn == CE_PANIC) 2471 fatal++; 2472 else 2473 nonfatal++; 2474 2475 (void) snprintf(buf, FM_MAX_CLASS, "%s.%s", 2476 PCI_ERROR_SUBCLASS, PCI_DTO); 2477 ddi_fm_ereport_post(dip, buf, derr->fme_ena, DDI_NOSLEEP, 2478 FM_VERSION, DATA_TYPE_UINT8, 0, 2479 PCI_CONFIG_STATUS, DATA_TYPE_UINT16, 2480 pbm_err.pbm_pci.pci_cfg_stat, 2481 PCI_CONFIG_COMMAND, DATA_TYPE_UINT16, 2482 pbm_err.pbm_pci.pci_cfg_comm, 2483 PCI_PA, DATA_TYPE_UINT64, (uint64_t)0, NULL); 2484 } 2485 2486 /* 2487 * PBM Detected Data Parity Error - DPE detected during a DMA Write 2488 * or PIO Read. Later case is taken care of by cpu_deferred_error 2489 * and sent here to be logged. 2490 */ 2491 if ((pbm_err.pbm_pci.pci_cfg_stat & PCI_STAT_PERROR) && 2492 !(pbm_err.pbm_pci.pci_cfg_stat & PCI_STAT_S_SYSERR)) { 2493 /* 2494 * If we have an address then fault 2495 * it, if not probe for errant device 2496 */ 2497 ret = DDI_FM_FATAL; 2498 if (caller != PCI_TRAP_CALL) { 2499 if (pbm_err.pbm_va_log) { 2500 ret = ndi_fmc_error(dip, NULL, DMA_HANDLE, 2501 derr->fme_ena, (void *)&pbm_err.pbm_va_log); 2502 } 2503 if (ret == DDI_FM_NONFATAL) 2504 nonfatal++; 2505 else 2506 fatal++; 2507 } else 2508 nonfatal++; 2509 2510 } 2511 2512 /* PBM Detected IOMMU Error */ 2513 if (pbm_err.pbm_ctl_stat & SCHIZO_PCI_CTRL_PCI_MMU_ERR) { 2514 if (iommu_err_handler(dip, derr->fme_ena, &pbm_err) 2515 == DDI_FM_FATAL) 2516 fatal++; 2517 else 2518 nonfatal++; 2519 } 2520 2521 done: 2522 ret = ndi_fm_handler_dispatch(dip, NULL, derr); 2523 if (ret == DDI_FM_FATAL) { 2524 fatal++; 2525 } else if (ret == DDI_FM_NONFATAL) { 2526 nonfatal++; 2527 } else if (ret == DDI_FM_UNKNOWN) { 2528 unknown++; 2529 } 2530 2531 /* 2532 * RSERR not claimed as nonfatal by a child is considered fatal 2533 */ 2534 if (unknown && !fatal && !nonfatal) 2535 fatal++; 2536 2537 /* Cleanup and reset error bits */ 2538 pci_clear_error(pci_p, &pbm_err); 2539 2540 return (fatal ? DDI_FM_FATAL : (nonfatal ? DDI_FM_NONFATAL : 2541 (unknown ? DDI_FM_UNKNOWN : DDI_FM_OK))); 2542 } 2543 2544 /* 2545 * Function returns TRUE if a Primary error is Split Completion Error 2546 * that indicates a Master Abort occured behind a PCI-X bridge. 2547 * This function should only be called for busses running in PCI-X mode. 2548 */ 2549 static int 2550 pcix_ma_behind_bridge(pbm_errstate_t *pbm_err_p) 2551 { 2552 uint64_t msg; 2553 2554 if (pbm_err_p->pbm_afsr & XMITS_PCI_X_AFSR_S_SC_ERR) 2555 return (0); 2556 2557 if (pbm_err_p->pbm_afsr & XMITS_PCI_X_AFSR_P_SC_ERR) { 2558 msg = (pbm_err_p->pbm_afsr >> XMITS_PCI_X_P_MSG_SHIFT) & 2559 XMITS_PCIX_MSG_MASK; 2560 if (msg & PCIX_CLASS_BRIDGE) 2561 if (msg & PCIX_BRIDGE_MASTER_ABORT) { 2562 return (1); 2563 } 2564 } 2565 2566 return (0); 2567 } 2568 2569 /* 2570 * Function used to gather PBM/PCI/IOMMU error state for the 2571 * pci_pbm_err_handler and the cb_buserr_intr. This function must be 2572 * called while pci_fm_mutex is held. 2573 */ 2574 static void 2575 pci_pbm_errstate_get(pci_t *pci_p, pbm_errstate_t *pbm_err_p) 2576 { 2577 pbm_t *pbm_p = pci_p->pci_pbm_p; 2578 iommu_t *iommu_p = pci_p->pci_iommu_p; 2579 caddr_t a = pci_p->pci_address[0]; 2580 uint64_t *pbm_pcix_stat_reg; 2581 2582 ASSERT(MUTEX_HELD(&pci_p->pci_common_p->pci_fm_mutex)); 2583 bzero(pbm_err_p, sizeof (pbm_errstate_t)); 2584 2585 /* 2586 * Capture all pbm error state for later logging 2587 */ 2588 pbm_err_p->pbm_bridge_type = PCI_BRIDGE_TYPE(pci_p->pci_common_p); 2589 2590 pbm_err_p->pbm_pci.pci_cfg_stat = 2591 pbm_p->pbm_config_header->ch_status_reg; 2592 pbm_err_p->pbm_ctl_stat = *pbm_p->pbm_ctrl_reg; 2593 pbm_err_p->pbm_afsr = *pbm_p->pbm_async_flt_status_reg; 2594 pbm_err_p->pbm_afar = *pbm_p->pbm_async_flt_addr_reg; 2595 pbm_err_p->pbm_iommu.iommu_stat = *iommu_p->iommu_ctrl_reg; 2596 pbm_err_p->pbm_pci.pci_cfg_comm = 2597 pbm_p->pbm_config_header->ch_command_reg; 2598 pbm_err_p->pbm_pci.pci_pa = *pbm_p->pbm_async_flt_addr_reg; 2599 2600 /* 2601 * Record errant slot for Xmits and Schizo 2602 * Not stored in Tomatillo 2603 */ 2604 if (CHIP_TYPE(pci_p) == PCI_CHIP_XMITS || 2605 CHIP_TYPE(pci_p) == PCI_CHIP_SCHIZO) { 2606 pbm_err_p->pbm_err_sl = (pbm_err_p->pbm_ctl_stat & 2607 SCHIZO_PCI_CTRL_ERR_SLOT) >> 2608 SCHIZO_PCI_CTRL_ERR_SLOT_SHIFT; 2609 2610 /* 2611 * The bit 51 on XMITS rev1.0 is same as 2612 * SCHIZO_PCI_CTRL_ERR_SLOT_LOCK on schizo2.3. But 2613 * this bit needs to be cleared to be able to latch 2614 * the slot info on next fault. 2615 * But in XMITS Rev2.0, this bit indicates a DMA Write 2616 * Parity error. 2617 */ 2618 if (pbm_err_p->pbm_ctl_stat & XMITS_PCI_CTRL_DMA_WR_PERR) { 2619 if ((PCI_CHIP_ID(pci_p) == XMITS_VER_10) || 2620 (PCI_CHIP_ID(pci_p) <= SCHIZO_VER_23)) { 2621 /* 2622 * top 32 bits are W1C and we just want to 2623 * clear SLOT_LOCK. Leave bottom 32 bits 2624 * unchanged 2625 */ 2626 *pbm_p->pbm_ctrl_reg = 2627 pbm_err_p->pbm_ctl_stat & 2628 (SCHIZO_PCI_CTRL_ERR_SLOT_LOCK | 2629 0xffffffff); 2630 pbm_err_p->pbm_ctl_stat = 2631 *pbm_p->pbm_ctrl_reg; 2632 } 2633 } 2634 } 2635 2636 /* 2637 * Tomatillo specific registers 2638 */ 2639 if (CHIP_TYPE(pci_p) == PCI_CHIP_TOMATILLO) { 2640 pbm_err_p->pbm_va_log = (uint64_t)va_to_pa( 2641 (void *)(uintptr_t)*(a + TOMATILLO_TGT_ERR_VALOG_OFFSET)); 2642 pbm_err_p->pbm_iommu.iommu_tfar = *iommu_p->iommu_tfar_reg; 2643 } 2644 2645 /* 2646 * Xmits PCI-X register 2647 */ 2648 if ((CHIP_TYPE(pci_p) == PCI_CHIP_XMITS) && 2649 (pbm_err_p->pbm_ctl_stat & XMITS_PCI_CTRL_X_MODE)) { 2650 2651 pbm_pcix_stat_reg = (uint64_t *)(a + 2652 XMITS_PCI_X_ERROR_STATUS_REG_OFFSET); 2653 2654 pbm_err_p->pbm_pcix_stat = *pbm_pcix_stat_reg; 2655 pbm_err_p->pbm_pcix_pfar = pbm_err_p->pbm_pcix_stat & 2656 XMITS_PCI_X_STATUS_PFAR_MASK; 2657 } 2658 } 2659 2660 /* 2661 * Function used to clear PBM/PCI/IOMMU error state after error handling 2662 * is complete. Only clearing error bits which have been logged. Called by 2663 * pci_pbm_err_handler and pci_bus_exit. 2664 */ 2665 static void 2666 pci_clear_error(pci_t *pci_p, pbm_errstate_t *pbm_err_p) 2667 { 2668 pbm_t *pbm_p = pci_p->pci_pbm_p; 2669 iommu_t *iommu_p = pci_p->pci_iommu_p; 2670 2671 ASSERT(MUTEX_HELD(&pbm_p->pbm_pci_p->pci_common_p->pci_fm_mutex)); 2672 2673 if (*pbm_p->pbm_ctrl_reg & SCHIZO_PCI_CTRL_PCI_MMU_ERR) { 2674 iommu_tlb_scrub(pci_p->pci_iommu_p, 1); 2675 } 2676 pbm_p->pbm_config_header->ch_status_reg = 2677 pbm_err_p->pbm_pci.pci_cfg_stat; 2678 *pbm_p->pbm_ctrl_reg = pbm_err_p->pbm_ctl_stat; 2679 *pbm_p->pbm_async_flt_status_reg = pbm_err_p->pbm_afsr; 2680 *iommu_p->iommu_ctrl_reg = pbm_err_p->pbm_iommu.iommu_stat; 2681 } 2682 2683 void 2684 pbm_clear_error(pbm_t *pbm_p) 2685 { 2686 uint64_t pbm_afsr, pbm_ctl_stat; 2687 2688 /* 2689 * for poke() support - called from POKE_FLUSH. Spin waiting 2690 * for MA, TA or SERR to be cleared by a pbm_error_intr(). 2691 * We have to wait for SERR too in case the device is beyond 2692 * a pci-pci bridge. 2693 */ 2694 pbm_ctl_stat = *pbm_p->pbm_ctrl_reg; 2695 pbm_afsr = *pbm_p->pbm_async_flt_status_reg; 2696 while (((pbm_afsr >> SCHIZO_PCI_AFSR_PE_SHIFT) & 2697 (SCHIZO_PCI_AFSR_E_MA | SCHIZO_PCI_AFSR_E_TA)) || 2698 (pbm_ctl_stat & COMMON_PCI_CTRL_SERR)) { 2699 pbm_ctl_stat = *pbm_p->pbm_ctrl_reg; 2700 pbm_afsr = *pbm_p->pbm_async_flt_status_reg; 2701 } 2702 } 2703 2704 /* 2705 * Function used to convert the 32 bit captured PCI error address 2706 * to the full Safari or Jbus address. This is so we can look this address 2707 * up in our handle caches. 2708 */ 2709 void 2710 pci_format_addr(dev_info_t *dip, uint64_t *afar, uint64_t afsr) 2711 { 2712 pci_t *pci_p = get_pci_soft_state(ddi_get_instance(dip)); 2713 pci_ranges_t *io_range, *mem_range; 2714 uint64_t err_pa = 0; 2715 2716 if (afsr & SCHIZO_PCI_AFSR_CONF_SPACE) { 2717 err_pa |= pci_p->pci_ranges->parent_high; 2718 err_pa = err_pa << 32; 2719 err_pa |= pci_p->pci_ranges->parent_low; 2720 } else if (afsr & SCHIZO_PCI_AFSR_IO_SPACE) { 2721 io_range = pci_p->pci_ranges + 1; 2722 err_pa |= io_range->parent_high; 2723 err_pa = err_pa << 32; 2724 err_pa |= io_range->parent_low; 2725 } else if (afsr & SCHIZO_PCI_AFSR_MEM_SPACE) { 2726 mem_range = pci_p->pci_ranges + 2; 2727 err_pa |= mem_range->parent_high; 2728 err_pa = err_pa << 32; 2729 err_pa |= mem_range->parent_low; 2730 } 2731 *afar |= err_pa; 2732 } 2733 2734 static ecc_format_t ecc_format_tbl[] = { 2735 SCH_REG_UPA, NULL, NULL, 2736 SCH_REG_PCIA_REG, SCHIZO_PCI_AFSR_CONF_SPACE, PCI_SIDEA, 2737 SCH_REG_PCIA_MEM, SCHIZO_PCI_AFSR_MEM_SPACE, PCI_SIDEA, 2738 SCH_REG_PCIA_CFGIO, SCHIZO_PCI_AFSR_IO_SPACE, PCI_SIDEA, 2739 SCH_REG_PCIB_REG, SCHIZO_PCI_AFSR_CONF_SPACE, PCI_SIDEB, 2740 SCH_REG_PCIB_MEM, SCHIZO_PCI_AFSR_MEM_SPACE, PCI_SIDEB, 2741 SCH_REG_PCIB_CFGIO, SCHIZO_PCI_AFSR_IO_SPACE, PCI_SIDEB, 2742 SCH_REG_SAFARI_REGS, NULL, NULL, 2743 NULL, NULL, NULL, 2744 }; 2745 2746 /* 2747 * Function used to convert the 32 bit PIO address captured for a 2748 * Safari Bus UE(during PIO Rd/Wr) to a full Safari Bus Address. 2749 */ 2750 static void 2751 pci_format_ecc_addr(dev_info_t *dip, uint64_t *afar, ecc_region_t region) 2752 { 2753 pci_t *pci_p = get_pci_soft_state(ddi_get_instance(dip)); 2754 pci_common_t *cmn_p = pci_p->pci_common_p; 2755 cb_t *cb_p = pci_p->pci_cb_p; 2756 int i, pci_side = 0; 2757 int swap = 0; 2758 uint64_t pa = cb_p->cb_base_pa; 2759 uint64_t flag, schizo_base, pci_csr_base; 2760 2761 if (pci_p == NULL) 2762 return; 2763 2764 pci_csr_base = va_to_pa(pci_p->pci_address[0]); 2765 2766 /* 2767 * Using the csr_base address to determine which side 2768 * we are on. 2769 */ 2770 if (pci_csr_base & PCI_SIDE_ADDR_MASK) 2771 pci_side = 1; 2772 else 2773 pci_side = 0; 2774 2775 schizo_base = pa - PBM_CTRL_OFFSET; 2776 2777 for (i = 0; ecc_format_tbl[i].ecc_region != NULL; i++) { 2778 if (region == ecc_format_tbl[i].ecc_region) { 2779 flag = ecc_format_tbl[i].ecc_space; 2780 if (ecc_format_tbl[i].ecc_side != pci_side) 2781 swap = 1; 2782 if (region == SCH_REG_SAFARI_REGS) 2783 *afar |= schizo_base; 2784 break; 2785 } 2786 } 2787 2788 if (swap) { 2789 pci_p = cmn_p->pci_p[PCI_OTHER_SIDE(pci_p->pci_side)]; 2790 2791 if (pci_p == NULL) 2792 return; 2793 } 2794 pci_format_addr(pci_p->pci_dip, afar, flag); 2795 } 2796 2797 /* 2798 * Function used to post control block specific ereports. 2799 */ 2800 static void 2801 cb_ereport_post(dev_info_t *dip, uint64_t ena, cb_errstate_t *cb_err) 2802 { 2803 pci_t *pci_p = get_pci_soft_state(ddi_get_instance(dip)); 2804 char buf[FM_MAX_CLASS], dev_path[MAXPATHLEN], *ptr; 2805 struct i_ddi_fmhdl *fmhdl = DEVI(dip)->devi_fmhdl; 2806 nvlist_t *ereport, *detector; 2807 errorq_elem_t *eqep; 2808 nv_alloc_t *nva; 2809 2810 DEBUG1(DBG_ATTACH, dip, "cb_ereport_post: elog 0x%lx", 2811 cb_err->cb_elog); 2812 2813 /* 2814 * We do not use ddi_fm_ereport_post because we need to set a 2815 * special detector here. Since we do not have a device path for 2816 * the bridge chip we use what we think it should be to aid in 2817 * diagnosis. 2818 */ 2819 (void) snprintf(buf, FM_MAX_CLASS, "%s.%s.%s", DDI_IO_CLASS, 2820 cb_err->cb_bridge_type, cb_err->cb_err_class); 2821 2822 ena = ena ? ena : fm_ena_generate(0, FM_ENA_FMT1); 2823 2824 eqep = errorq_reserve(fmhdl->fh_errorq); 2825 if (eqep == NULL) 2826 return; 2827 2828 ereport = errorq_elem_nvl(fmhdl->fh_errorq, eqep); 2829 nva = errorq_elem_nva(fmhdl->fh_errorq, eqep); 2830 detector = fm_nvlist_create(nva); 2831 2832 ASSERT(ereport); 2833 ASSERT(nva); 2834 ASSERT(detector); 2835 2836 ddi_pathname(dip, dev_path); 2837 ptr = strrchr(dev_path, (int)','); 2838 2839 if (ptr) 2840 *ptr = '\0'; 2841 2842 fm_fmri_dev_set(detector, FM_DEV_SCHEME_VERSION, NULL, dev_path, NULL); 2843 2844 DEBUG1(DBG_ERR_INTR, dip, "cb_ereport_post: ereport_set: %s", buf); 2845 2846 if (CHIP_TYPE(pci_p) == PCI_CHIP_SCHIZO || 2847 CHIP_TYPE(pci_p) == PCI_CHIP_XMITS) { 2848 fm_ereport_set(ereport, FM_EREPORT_VERSION, buf, ena, detector, 2849 SAFARI_CSR, DATA_TYPE_UINT64, cb_err->cb_csr, 2850 SAFARI_ERR, DATA_TYPE_UINT64, cb_err->cb_err, 2851 SAFARI_INTR, DATA_TYPE_UINT64, cb_err->cb_intr, 2852 SAFARI_ELOG, DATA_TYPE_UINT64, cb_err->cb_elog, 2853 SAFARI_PCR, DATA_TYPE_UINT64, cb_err->cb_pcr, 2854 NULL); 2855 } else if (CHIP_TYPE(pci_p) == PCI_CHIP_TOMATILLO) { 2856 fm_ereport_set(ereport, FM_EREPORT_VERSION, buf, ena, detector, 2857 JBUS_CSR, DATA_TYPE_UINT64, cb_err->cb_csr, 2858 JBUS_ERR, DATA_TYPE_UINT64, cb_err->cb_err, 2859 JBUS_INTR, DATA_TYPE_UINT64, cb_err->cb_intr, 2860 JBUS_ELOG, DATA_TYPE_UINT64, cb_err->cb_elog, 2861 JBUS_PCR, DATA_TYPE_UINT64, cb_err->cb_pcr, 2862 NULL); 2863 } 2864 errorq_commit(fmhdl->fh_errorq, eqep, ERRORQ_ASYNC); 2865 } 2866 2867 /* 2868 * Function used to post IOMMU specific ereports. 2869 */ 2870 static void 2871 iommu_ereport_post(dev_info_t *dip, uint64_t ena, pbm_errstate_t *pbm_err) 2872 { 2873 char buf[FM_MAX_CLASS]; 2874 2875 (void) snprintf(buf, FM_MAX_CLASS, "%s.%s", 2876 pbm_err->pbm_bridge_type, pbm_err->pbm_err_class); 2877 2878 ena = ena ? ena : fm_ena_generate(0, FM_ENA_FMT1); 2879 2880 DEBUG1(DBG_ERR_INTR, dip, "iommu_ereport_post: ereport_set: %s", buf); 2881 2882 ddi_fm_ereport_post(dip, buf, ena, DDI_NOSLEEP, 2883 FM_VERSION, DATA_TYPE_UINT8, 0, 2884 PCI_CONFIG_STATUS, DATA_TYPE_UINT16, pbm_err->pbm_pci.pci_cfg_stat, 2885 PCI_CONFIG_COMMAND, DATA_TYPE_UINT16, pbm_err->pbm_pci.pci_cfg_comm, 2886 PCI_PBM_CSR, DATA_TYPE_UINT64, pbm_err->pbm_ctl_stat, 2887 PCI_PBM_IOMMU_CTRL, DATA_TYPE_UINT64, pbm_err->pbm_iommu.iommu_stat, 2888 PCI_PBM_IOMMU_TFAR, DATA_TYPE_UINT64, pbm_err->pbm_iommu.iommu_tfar, 2889 PCI_PBM_SLOT, DATA_TYPE_UINT64, pbm_err->pbm_err_sl, 2890 PCI_PBM_VALOG, DATA_TYPE_UINT64, pbm_err->pbm_va_log, 2891 NULL); 2892 } 2893 2894 /* 2895 * Function used to post PCI-X generic ereports. 2896 * This function needs to be fixed once the Fault Boundary Analysis 2897 * for PCI-X is conducted. The payload should be made more generic. 2898 */ 2899 static void 2900 pcix_ereport_post(dev_info_t *dip, uint64_t ena, pbm_errstate_t *pbm_err) 2901 { 2902 char buf[FM_MAX_CLASS]; 2903 2904 (void) snprintf(buf, FM_MAX_CLASS, "%s.%s", 2905 pbm_err->pbm_bridge_type, pbm_err->pbm_err_class); 2906 2907 ena = ena ? ena : fm_ena_generate(0, FM_ENA_FMT1); 2908 2909 DEBUG1(DBG_ERR_INTR, dip, "pcix_ereport_post: ereport_post: %s", buf); 2910 2911 ddi_fm_ereport_post(dip, buf, ena, DDI_NOSLEEP, 2912 FM_VERSION, DATA_TYPE_UINT8, 0, 2913 PCI_CONFIG_STATUS, DATA_TYPE_UINT16, pbm_err->pbm_pci.pci_cfg_stat, 2914 PCI_CONFIG_COMMAND, DATA_TYPE_UINT16, pbm_err->pbm_pci.pci_cfg_comm, 2915 PCI_PBM_CSR, DATA_TYPE_UINT64, pbm_err->pbm_ctl_stat, 2916 PCI_PBM_AFSR, DATA_TYPE_UINT64, pbm_err->pbm_afsr, 2917 PCI_PBM_AFAR, DATA_TYPE_UINT64, pbm_err->pbm_afar, 2918 PCI_PBM_SLOT, DATA_TYPE_UINT64, pbm_err->pbm_err_sl, 2919 PCIX_STAT, DATA_TYPE_UINT64, pbm_err->pbm_pcix_stat, 2920 PCIX_PFAR, DATA_TYPE_UINT32, pbm_err->pbm_pcix_pfar, 2921 NULL); 2922 } 2923 2924 static void 2925 iommu_ctx_free(iommu_t *iommu_p) 2926 { 2927 kmem_free(iommu_p->iommu_ctx_bitmap, IOMMU_CTX_BITMAP_SIZE); 2928 } 2929 2930 /* 2931 * iommu_tlb_scrub(): 2932 * Exam TLB entries through TLB diagnostic registers and look for errors. 2933 * scrub = 1 : cleanup all error bits in tlb, called in FAULT_RESET case 2934 * scrub = 0 : log all error conditions to console, FAULT_LOG case 2935 * In both cases, it returns number of errors found in tlb entries. 2936 */ 2937 static int 2938 iommu_tlb_scrub(iommu_t *iommu_p, int scrub) 2939 { 2940 int i, nerr = 0; 2941 dev_info_t *dip = iommu_p->iommu_pci_p->pci_dip; 2942 char *neg = "not "; 2943 2944 uint64_t base = (uint64_t)iommu_p->iommu_ctrl_reg - 2945 COMMON_IOMMU_CTRL_REG_OFFSET; 2946 2947 volatile uint64_t *tlb_tag = (volatile uint64_t *) 2948 (base + COMMON_IOMMU_TLB_TAG_DIAG_ACC_OFFSET); 2949 volatile uint64_t *tlb_data = (volatile uint64_t *) 2950 (base + COMMON_IOMMU_TLB_DATA_DIAG_ACC_OFFSET); 2951 for (i = 0; i < IOMMU_TLB_ENTRIES; i++) { 2952 uint64_t tag = tlb_tag[i]; 2953 uint64_t data = tlb_data[i]; 2954 uint32_t errstat; 2955 iopfn_t pfn; 2956 2957 if (!(tag & TLBTAG_ERR_BIT)) 2958 continue; 2959 2960 pfn = (iopfn_t)(data & TLBDATA_MEMPA_BITS); 2961 errstat = (uint32_t) 2962 ((tag & TLBTAG_ERRSTAT_BITS) >> TLBTAG_ERRSTAT_SHIFT); 2963 if (errstat == TLBTAG_ERRSTAT_INVALID) { 2964 if (scrub) 2965 tlb_tag[i] = tlb_data[i] = 0ull; 2966 } else 2967 nerr++; 2968 2969 if (scrub) 2970 continue; 2971 2972 cmn_err(CE_CONT, "%s%d: Error %x on IOMMU TLB entry %x:\n" 2973 "\tContext=%lx %sWritable %sStreamable\n" 2974 "\tPCI Page Size=%sk Address in page %lx\n", 2975 ddi_driver_name(dip), ddi_get_instance(dip), errstat, i, 2976 (tag & TLBTAG_CONTEXT_BITS) >> TLBTAG_CONTEXT_SHIFT, 2977 (tag & TLBTAG_WRITABLE_BIT) ? "" : neg, 2978 (tag & TLBTAG_STREAM_BIT) ? "" : neg, 2979 (tag & TLBTAG_PGSIZE_BIT) ? "64" : "8", 2980 (tag & TLBTAG_PCIVPN_BITS) << 13); 2981 cmn_err(CE_CONT, "Memory: %sValid %sCacheable Page Frame=%lx\n", 2982 (data & TLBDATA_VALID_BIT) ? "" : neg, 2983 (data & TLBDATA_CACHE_BIT) ? "" : neg, pfn); 2984 } 2985 return (nerr); 2986 } 2987 2988 /* 2989 * pci_iommu_disp: calculates the displacement needed in tomatillo's 2990 * iommu control register and modifies the control value template 2991 * from caller. It also clears any error status bit that are new 2992 * in tomatillo. 2993 * return value: an 8-bit mask to enable corresponding 512 MB segments 2994 * suitable for tomatillo's target address register. 2995 * 0x00: no programming is needed, use existing value from prom 2996 * 0x60: use segment 5 and 6 to form a 1GB dvma range 2997 */ 2998 static uint64_t 2999 pci_iommu_disp(iommu_t *iommu_p, uint64_t *ctl_p) 3000 { 3001 uint64_t ctl_old; 3002 if (CHIP_TYPE(iommu_p->iommu_pci_p) != PCI_CHIP_TOMATILLO) 3003 return (0); 3004 3005 ctl_old = *iommu_p->iommu_ctrl_reg; 3006 /* iommu ctrl reg error bits are W1C */ 3007 if (ctl_old >> TOMATIILO_IOMMU_ERR_REG_SHIFT) { 3008 cmn_err(CE_WARN, "Tomatillo iommu err: %lx", ctl_old); 3009 *ctl_p |= (ctl_old >> TOMATIILO_IOMMU_ERR_REG_SHIFT) 3010 << TOMATIILO_IOMMU_ERR_REG_SHIFT; 3011 } 3012 3013 if (iommu_p->iommu_tsb_size != TOMATILLO_IOMMU_TSB_MAX) 3014 return (0); 3015 3016 /* Tomatillo 2.0 and later, and 1GB DVMA range */ 3017 *ctl_p |= 1 << TOMATILLO_IOMMU_SEG_DISP_SHIFT; 3018 return (3 << (iommu_p->iommu_dvma_base >> (32 - 3))); 3019 } 3020 3021 void 3022 pci_iommu_config(iommu_t *iommu_p, uint64_t iommu_ctl, uint64_t cfgpa) 3023 { 3024 uintptr_t pbm_regbase = get_pbm_reg_base(iommu_p->iommu_pci_p); 3025 volatile uint64_t *pbm_csr_p = (volatile uint64_t *)pbm_regbase; 3026 volatile uint64_t *tgt_space_p = (volatile uint64_t *)(pbm_regbase | 3027 (TOMATILLO_TGT_ADDR_SPACE_OFFSET - SCHIZO_PCI_CTRL_REG_OFFSET)); 3028 volatile uint64_t pbm_ctl = *pbm_csr_p; 3029 3030 volatile uint64_t *iommu_ctl_p = iommu_p->iommu_ctrl_reg; 3031 volatile uint64_t tsb_bar_val = iommu_p->iommu_tsb_paddr; 3032 volatile uint64_t *tsb_bar_p = iommu_p->iommu_tsb_base_addr_reg; 3033 uint64_t mask = pci_iommu_disp(iommu_p, &iommu_ctl); 3034 3035 DEBUG2(DBG_ATTACH, iommu_p->iommu_pci_p->pci_dip, 3036 "\npci_iommu_config: pbm_csr_p=%llx pbm_ctl=%llx", 3037 pbm_csr_p, pbm_ctl); 3038 DEBUG2(DBG_ATTACH|DBG_CONT, iommu_p->iommu_pci_p->pci_dip, 3039 "\n\tiommu_ctl_p=%llx iommu_ctl=%llx", 3040 iommu_ctl_p, iommu_ctl); 3041 DEBUG4(DBG_ATTACH|DBG_CONT, iommu_p->iommu_pci_p->pci_dip, 3042 "\n\tcfgpa=%llx tgt_space_p=%llx mask=%x tsb=%llx\n", 3043 cfgpa, tgt_space_p, mask, tsb_bar_val); 3044 3045 if (!cfgpa) 3046 goto reprog; 3047 3048 /* disable PBM arbiters - turn off bits 0-7 */ 3049 *pbm_csr_p = (pbm_ctl >> 8) << 8; 3050 3051 /* 3052 * For non-XMITS, flush any previous writes. This is only 3053 * necessary for host bridges that may have a USB keywboard 3054 * attached. XMITS does not. 3055 */ 3056 if (!(CHIP_TYPE(iommu_p->iommu_pci_p) == PCI_CHIP_XMITS)) 3057 (void) ldphysio(cfgpa); 3058 3059 reprog: 3060 if (mask) 3061 *tgt_space_p = mask; 3062 3063 *tsb_bar_p = tsb_bar_val; 3064 *iommu_ctl_p = iommu_ctl; 3065 3066 *pbm_csr_p = pbm_ctl; /* re-enable bus arbitration */ 3067 pbm_ctl = *pbm_csr_p; /* flush all prev writes */ 3068 } 3069 3070 3071 int 3072 pci_get_portid(dev_info_t *dip) 3073 { 3074 return (ddi_getprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, 3075 "portid", -1)); 3076 } 3077 3078 /* 3079 * Schizo Safari Performance Events. 3080 */ 3081 pci_kev_mask_t 3082 schizo_saf_events[] = { 3083 {"saf_bus_cycles", 0x1}, {"saf_pause_asserted_cycles", 0x2}, 3084 {"saf_frn_coherent_cmds", 0x3}, {"saf_frn_coherent_hits", 0x4}, 3085 {"saf_my_coherent_cmds", 0x5}, {"saf_my_coherent_hits", 0x6}, 3086 {"saf_frn_io_cmds", 0x7}, {"saf_frn_io_hits", 0x8}, 3087 {"merge_buffer", 0x9}, {"interrupts", 0xa}, 3088 {"csr_pios", 0xc}, {"upa_pios", 0xd}, 3089 {"pcia_pios", 0xe}, {"pcib_pios", 0xf}, 3090 {"saf_pause_seen_cycles", 0x11}, {"dvma_reads", 0x12}, 3091 {"dvma_writes", 0x13}, {"saf_orq_full_cycles", 0x14}, 3092 {"saf_data_in_cycles", 0x15}, {"saf_data_out_cycles", 0x16}, 3093 {"clear_pic", 0x1f} 3094 }; 3095 3096 3097 /* 3098 * Schizo PCI Performance Events. 3099 */ 3100 pci_kev_mask_t 3101 schizo_pci_events[] = { 3102 {"dvma_stream_rd", 0x0}, {"dvma_stream_wr", 0x1}, 3103 {"dvma_const_rd", 0x2}, {"dvma_const_wr", 0x3}, 3104 {"dvma_stream_buf_mis", 0x4}, {"dvma_cycles", 0x5}, 3105 {"dvma_wd_xfr", 0x6}, {"pio_cycles", 0x7}, 3106 {"dvma_tlb_misses", 0x10}, {"interrupts", 0x11}, 3107 {"saf_inter_nack", 0x12}, {"pio_reads", 0x13}, 3108 {"pio_writes", 0x14}, {"dvma_rd_buf_timeout", 0x15}, 3109 {"dvma_rd_rtry_stc", 0x16}, {"dvma_wr_rtry_stc", 0x17}, 3110 {"dvma_rd_rtry_nonstc", 0x18}, {"dvma_wr_rtry_nonstc", 0x19}, 3111 {"E*_slow_transitions", 0x1a}, {"E*_slow_cycles_per_64", 0x1b}, 3112 {"clear_pic", 0x1f} 3113 }; 3114 3115 3116 /* 3117 * Create the picN kstats for the pci 3118 * and safari events. 3119 */ 3120 void 3121 pci_kstat_init() 3122 { 3123 pci_name_kstat = (pci_ksinfo_t *)kmem_alloc(sizeof (pci_ksinfo_t), 3124 KM_NOSLEEP); 3125 3126 if (pci_name_kstat == NULL) { 3127 cmn_err(CE_WARN, "pcisch : no space for kstat\n"); 3128 } else { 3129 pci_name_kstat->pic_no_evs = 3130 sizeof (schizo_pci_events) / sizeof (pci_kev_mask_t); 3131 pci_name_kstat->pic_shift[0] = SCHIZO_SHIFT_PIC0; 3132 pci_name_kstat->pic_shift[1] = SCHIZO_SHIFT_PIC1; 3133 pci_create_name_kstat("pcis", 3134 pci_name_kstat, schizo_pci_events); 3135 } 3136 3137 saf_name_kstat = (pci_ksinfo_t *)kmem_alloc(sizeof (pci_ksinfo_t), 3138 KM_NOSLEEP); 3139 if (saf_name_kstat == NULL) { 3140 cmn_err(CE_WARN, "pcisch : no space for kstat\n"); 3141 } else { 3142 saf_name_kstat->pic_no_evs = 3143 sizeof (schizo_saf_events) / sizeof (pci_kev_mask_t); 3144 saf_name_kstat->pic_shift[0] = SCHIZO_SHIFT_PIC0; 3145 saf_name_kstat->pic_shift[1] = SCHIZO_SHIFT_PIC1; 3146 pci_create_name_kstat("saf", saf_name_kstat, schizo_saf_events); 3147 } 3148 } 3149 3150 void 3151 pci_kstat_fini() 3152 { 3153 if (pci_name_kstat != NULL) { 3154 pci_delete_name_kstat(pci_name_kstat); 3155 kmem_free(pci_name_kstat, sizeof (pci_ksinfo_t)); 3156 pci_name_kstat = NULL; 3157 } 3158 3159 if (saf_name_kstat != NULL) { 3160 pci_delete_name_kstat(saf_name_kstat); 3161 kmem_free(saf_name_kstat, sizeof (pci_ksinfo_t)); 3162 saf_name_kstat = NULL; 3163 } 3164 } 3165 3166 /* 3167 * Create 'counters' kstat for pci events. 3168 */ 3169 void 3170 pci_add_pci_kstat(pci_t *pci_p) 3171 { 3172 pci_cntr_addr_t *cntr_addr_p = &pci_p->pci_ks_addr; 3173 uintptr_t regbase = (uintptr_t)pci_p->pci_address[0]; 3174 3175 cntr_addr_p->pcr_addr = (uint64_t *) 3176 (regbase + SCHIZO_PERF_PCI_PCR_OFFSET); 3177 cntr_addr_p->pic_addr = (uint64_t *) 3178 (regbase + SCHIZO_PERF_PCI_PIC_OFFSET); 3179 3180 pci_p->pci_ksp = pci_create_cntr_kstat(pci_p, "pcis", 3181 NUM_OF_PICS, pci_cntr_kstat_update, cntr_addr_p); 3182 3183 if (pci_p->pci_ksp == NULL) { 3184 cmn_err(CE_WARN, "pcisch : cannot create counter kstat"); 3185 } 3186 } 3187 3188 void 3189 pci_rem_pci_kstat(pci_t *pci_p) 3190 { 3191 if (pci_p->pci_ksp != NULL) 3192 kstat_delete(pci_p->pci_ksp); 3193 pci_p->pci_ksp = NULL; 3194 } 3195 3196 void 3197 pci_add_upstream_kstat(pci_t *pci_p) 3198 { 3199 pci_common_t *cmn_p = pci_p->pci_common_p; 3200 pci_cntr_pa_t *cntr_pa_p = &cmn_p->pci_cmn_uks_pa; 3201 uint64_t regbase = va_to_pa(pci_p->pci_address[1]); 3202 3203 cntr_pa_p->pcr_pa = 3204 regbase + SCHIZO_PERF_SAF_PCR_OFFSET; 3205 cntr_pa_p->pic_pa = 3206 regbase + SCHIZO_PERF_SAF_PIC_OFFSET; 3207 3208 cmn_p->pci_common_uksp = pci_create_cntr_kstat(pci_p, "saf", 3209 NUM_OF_PICS, pci_cntr_kstat_pa_update, cntr_pa_p); 3210 } 3211 3212 /* 3213 * Extract the drivers binding name to identify which chip 3214 * we're binding to. Whenever a new bus bridge is created, the driver alias 3215 * entry should be added here to identify the device if needed. If a device 3216 * isn't added, the identity defaults to PCI_CHIP_UNIDENTIFIED. 3217 */ 3218 static uint32_t 3219 pci_identity_init(pci_t *pci_p) 3220 { 3221 dev_info_t *dip = pci_p->pci_dip; 3222 char *name = ddi_binding_name(dip); 3223 uint32_t ver = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, 3224 "version#", 0); 3225 3226 if (strcmp(name, "pci108e,a801") == 0) 3227 return (CHIP_ID(PCI_CHIP_TOMATILLO, ver, 0x00)); 3228 3229 if (strcmp(name, "pci108e,8001") == 0) 3230 return (CHIP_ID(PCI_CHIP_SCHIZO, ver, 0x00)); 3231 3232 if (strcmp(name, "pci108e,8002") == 0) { 3233 uint32_t mod_rev = ddi_prop_get_int(DDI_DEV_T_ANY, dip, 3234 DDI_PROP_DONTPASS, "module-revision#", 0); 3235 return (CHIP_ID(PCI_CHIP_XMITS, ver, mod_rev)); 3236 } 3237 3238 cmn_err(CE_WARN, "%s%d: Unknown PCI Host bridge %s %x\n", 3239 ddi_driver_name(dip), ddi_get_instance(dip), name, ver); 3240 3241 return (PCI_CHIP_UNIDENTIFIED); 3242 } 3243 3244 /* 3245 * Setup a physical pointer to one leaf config space area. This 3246 * is used in several places in order to do a dummy read which 3247 * guarantees the nexus (and not a bus master) has gained control 3248 * of the bus. 3249 */ 3250 static void 3251 pci_setup_cfgpa(pci_t *pci_p) 3252 { 3253 dev_info_t *dip = pci_p->pci_dip; 3254 dev_info_t *cdip; 3255 pbm_t *pbm_p = pci_p->pci_pbm_p; 3256 uint64_t cfgpa = pci_get_cfg_pabase(pci_p); 3257 uint32_t *reg_p; 3258 int reg_len; 3259 3260 for (cdip = ddi_get_child(dip); cdip != NULL; 3261 cdip = ddi_get_next_sibling(cdip)) { 3262 if (ddi_getlongprop(DDI_DEV_T_ANY, cdip, DDI_PROP_DONTPASS, 3263 "reg", (caddr_t)®_p, ®_len) != DDI_PROP_SUCCESS) 3264 continue; 3265 cfgpa += (*reg_p) & (PCI_CONF_ADDR_MASK ^ PCI_REG_REG_M); 3266 kmem_free(reg_p, reg_len); 3267 break; 3268 } 3269 pbm_p->pbm_anychild_cfgpa = cfgpa; 3270 } 3271 3272 void 3273 pci_post_init_child(pci_t *pci_p, dev_info_t *child) 3274 { 3275 volatile uint64_t *ctrl_reg_p; 3276 pbm_t *pbm_p = pci_p->pci_pbm_p; 3277 3278 pci_setup_cfgpa(pci_p); 3279 3280 /* 3281 * This is a hack for skyhawk/casinni combination to address 3282 * hardware problems between the request and grant signals which 3283 * causes a bus hang. One workaround, which is applied here, 3284 * is to disable bus parking if the child contains the property 3285 * pci-req-removal. Note that if the bus is quiesced we must mask 3286 * off the parking bit in the saved control registers, since the 3287 * quiesce operation temporarily turns off PCI bus parking. 3288 */ 3289 if (ddi_prop_exists(DDI_DEV_T_ANY, child, DDI_PROP_DONTPASS, 3290 "pci-req-removal") == 1) { 3291 3292 if (pbm_p->pbm_quiesce_count > 0) { 3293 pbm_p->pbm_saved_ctrl_reg &= ~SCHIZO_PCI_CTRL_ARB_PARK; 3294 } else { 3295 ctrl_reg_p = pbm_p->pbm_ctrl_reg; 3296 *ctrl_reg_p &= ~SCHIZO_PCI_CTRL_ARB_PARK; 3297 } 3298 } 3299 3300 if (CHIP_TYPE(pci_p) == PCI_CHIP_XMITS) { 3301 if (*pbm_p->pbm_ctrl_reg & XMITS_PCI_CTRL_X_MODE) { 3302 int value; 3303 3304 /* 3305 * Due to a XMITS bug, we need to set the outstanding 3306 * split transactions to 1 for all PCI-X functions 3307 * behind the leaf. 3308 */ 3309 value = (xmits_max_transactions << 4) | 3310 (xmits_max_read_bytes << 2); 3311 3312 DEBUG1(DBG_INIT_CLD, child, "Turning on XMITS NCPQ " 3313 "Workaround: value = %x\n", value); 3314 3315 pcix_set_cmd_reg(child, value); 3316 3317 (void) ndi_prop_update_int(DDI_DEV_T_NONE, 3318 child, "pcix-update-cmd-reg", value); 3319 } 3320 3321 if (PCI_CHIP_ID(pci_p) >= XMITS_VER_30) { 3322 uint64_t *pbm_pcix_diag_reg = 3323 (uint64_t *)(pci_p->pci_address[0] + 3324 XMITS_PCI_X_DIAG_REG_OFFSET); 3325 uint64_t bugcntl = (*pbm_pcix_diag_reg >> 3326 XMITS_PCI_X_DIAG_BUGCNTL_SHIFT) & 3327 XMITS_PCI_X_DIAG_BUGCNTL_MASK; 3328 uint64_t tunable = (*pbm_p->pbm_ctrl_reg & 3329 XMITS_PCI_CTRL_X_MODE ? 3330 xmits_pcix_diag_bugcntl_pcix : 3331 xmits_pcix_diag_bugcntl_pci) 3332 & XMITS_PCI_X_DIAG_BUGCNTL_MASK; 3333 3334 DEBUG4(DBG_INIT_CLD, pci_p->pci_dip, "%s: XMITS " 3335 "pcix diag bugcntl=0x%lx, tunable=0x%lx, mode=%s\n", 3336 ddi_driver_name(child), bugcntl, tunable, 3337 ((*pbm_p->pbm_ctrl_reg & XMITS_PCI_CTRL_X_MODE)? 3338 "PCI-X":"PCI")); 3339 3340 DEBUG2(DBG_INIT_CLD, pci_p->pci_dip, "%s: XMITS " 3341 "pcix diag reg=0x%lx (CUR)\n", 3342 ddi_driver_name(child), *pbm_pcix_diag_reg); 3343 3344 /* 3345 * Due to a XMITS 3.x hw bug, we need to 3346 * read PBM's xmits pci ctrl status register to 3347 * determine mode (PCI or PCI-X) and then update 3348 * PBM's pcix diag register with new BUG_FIX_CNTL 3349 * bits (47:32) _if_ different from tunable's mode 3350 * based value. This update is performed only once 3351 * during the PBM's first child init. 3352 * 3353 * Per instructions from xmits hw engineering, 3354 * non-BUG_FIX_CNTL bits should not be preserved 3355 * when updating the pcix diag register. Such bits 3356 * should be written as 0s. 3357 */ 3358 3359 if (bugcntl != tunable) { 3360 *pbm_pcix_diag_reg = tunable << 3361 XMITS_PCI_X_DIAG_BUGCNTL_SHIFT; 3362 3363 DEBUG2(DBG_INIT_CLD, pci_p->pci_dip, "%s: XMITS" 3364 " pcix diag reg=0x%lx (NEW)\n", 3365 ddi_driver_name(child), *pbm_pcix_diag_reg); 3366 } 3367 } 3368 } 3369 } 3370 3371 void 3372 pci_post_uninit_child(pci_t *pci_p) 3373 { 3374 pci_setup_cfgpa(pci_p); 3375 } 3376 3377 static int 3378 pci_tom_nbintr_op(pci_t *pci_p, uint32_t inum, intrfunc f, caddr_t arg, 3379 int flag) 3380 { 3381 uint32_t ino = pci_p->pci_inos[inum]; 3382 uint32_t mondo = IB_INO_TO_NBMONDO(pci_p->pci_ib_p, ino); 3383 int ret = DDI_SUCCESS; 3384 3385 mondo = CB_MONDO_TO_XMONDO(pci_p->pci_cb_p, mondo); /* no op on tom */ 3386 3387 switch (flag) { 3388 case PCI_OBJ_INTR_ADD: 3389 VERIFY(add_ivintr(mondo, pci_pil[inum], f, 3390 arg, NULL, NULL) == 0); 3391 break; 3392 case PCI_OBJ_INTR_REMOVE: 3393 VERIFY(rem_ivintr(mondo, pci_pil[inum]) == 0); 3394 break; 3395 default: 3396 ret = DDI_FAILURE; 3397 break; 3398 } 3399 3400 return (ret); 3401 } 3402 3403 int 3404 pci_ecc_add_intr(pci_t *pci_p, int inum, ecc_intr_info_t *eii_p) 3405 { 3406 uint32_t mondo; 3407 int r; 3408 3409 mondo = ((pci_p->pci_cb_p->cb_ign << PCI_INO_BITS) | 3410 pci_p->pci_inos[inum]); 3411 mondo = CB_MONDO_TO_XMONDO(pci_p->pci_cb_p, mondo); 3412 3413 VERIFY(add_ivintr(mondo, pci_pil[inum], (intrfunc)ecc_intr, 3414 (caddr_t)eii_p, NULL, NULL) == 0); 3415 3416 if (CHIP_TYPE(pci_p) != PCI_CHIP_TOMATILLO) 3417 return (PCI_ATTACH_RETCODE(PCI_ECC_OBJ, PCI_OBJ_INTR_ADD, 3418 DDI_SUCCESS)); 3419 3420 r = pci_tom_nbintr_op(pci_p, inum, (intrfunc)ecc_intr, 3421 (caddr_t)eii_p, PCI_OBJ_INTR_ADD); 3422 return (PCI_ATTACH_RETCODE(PCI_ECC_OBJ, PCI_OBJ_INTR_ADD, r)); 3423 } 3424 3425 void 3426 pci_ecc_rem_intr(pci_t *pci_p, int inum, ecc_intr_info_t *eii_p) 3427 { 3428 uint32_t mondo; 3429 3430 mondo = ((pci_p->pci_cb_p->cb_ign << PCI_INO_BITS) | 3431 pci_p->pci_inos[inum]); 3432 mondo = CB_MONDO_TO_XMONDO(pci_p->pci_cb_p, mondo); 3433 3434 VERIFY(rem_ivintr(mondo, pci_pil[inum]) == 0); 3435 3436 if (CHIP_TYPE(pci_p) == PCI_CHIP_TOMATILLO) 3437 pci_tom_nbintr_op(pci_p, inum, (intrfunc)ecc_intr, 3438 (caddr_t)eii_p, PCI_OBJ_INTR_REMOVE); 3439 } 3440 3441 static uint_t 3442 pci_pbm_cdma_intr(caddr_t a) 3443 { 3444 pbm_t *pbm_p = (pbm_t *)a; 3445 pbm_p->pbm_cdma_flag = PBM_CDMA_DONE; 3446 #ifdef PBM_CDMA_DEBUG 3447 pbm_p->pbm_cdma_intr_cnt++; 3448 #endif /* PBM_CDMA_DEBUG */ 3449 return (DDI_INTR_CLAIMED); 3450 } 3451 3452 int 3453 pci_pbm_add_intr(pci_t *pci_p) 3454 { 3455 uint32_t mondo; 3456 3457 mondo = IB_INO_TO_MONDO(pci_p->pci_ib_p, pci_p->pci_inos[CBNINTR_CDMA]); 3458 mondo = CB_MONDO_TO_XMONDO(pci_p->pci_cb_p, mondo); 3459 3460 VERIFY(add_ivintr(mondo, pci_pil[CBNINTR_CDMA], 3461 (intrfunc)pci_pbm_cdma_intr, (caddr_t)pci_p->pci_pbm_p, 3462 NULL, NULL) == 0); 3463 3464 return (DDI_SUCCESS); 3465 } 3466 3467 void 3468 pci_pbm_rem_intr(pci_t *pci_p) 3469 { 3470 ib_t *ib_p = pci_p->pci_ib_p; 3471 uint32_t mondo; 3472 3473 mondo = IB_INO_TO_MONDO(pci_p->pci_ib_p, pci_p->pci_inos[CBNINTR_CDMA]); 3474 mondo = CB_MONDO_TO_XMONDO(pci_p->pci_cb_p, mondo); 3475 3476 ib_intr_disable(ib_p, pci_p->pci_inos[CBNINTR_CDMA], IB_INTR_NOWAIT); 3477 VERIFY(rem_ivintr(mondo, pci_pil[CBNINTR_CDMA]) == 0); 3478 } 3479 3480 void 3481 pci_pbm_suspend(pci_t *pci_p) 3482 { 3483 pbm_t *pbm_p = pci_p->pci_pbm_p; 3484 ib_ino_t ino = pci_p->pci_inos[CBNINTR_CDMA]; 3485 3486 /* Save CDMA interrupt state */ 3487 pbm_p->pbm_cdma_imr_save = *ib_intr_map_reg_addr(pci_p->pci_ib_p, ino); 3488 } 3489 3490 void 3491 pci_pbm_resume(pci_t *pci_p) 3492 { 3493 pbm_t *pbm_p = pci_p->pci_pbm_p; 3494 ib_ino_t ino = pci_p->pci_inos[CBNINTR_CDMA]; 3495 3496 /* Restore CDMA interrupt state */ 3497 *ib_intr_map_reg_addr(pci_p->pci_ib_p, ino) = pbm_p->pbm_cdma_imr_save; 3498 } 3499 3500 /* 3501 * pci_bus_quiesce 3502 * 3503 * This function is called as the corresponding control ops routine 3504 * to a DDI_CTLOPS_QUIESCE command. Its mission is to halt all DMA 3505 * activity on the bus by disabling arbitration/parking. 3506 */ 3507 int 3508 pci_bus_quiesce(pci_t *pci_p, dev_info_t *dip, void *result) 3509 { 3510 volatile uint64_t *ctrl_reg_p; 3511 volatile uint64_t ctrl_reg; 3512 pbm_t *pbm_p; 3513 3514 pbm_p = pci_p->pci_pbm_p; 3515 ctrl_reg_p = pbm_p->pbm_ctrl_reg; 3516 3517 if (pbm_p->pbm_quiesce_count++ == 0) { 3518 3519 DEBUG0(DBG_PWR, dip, "quiescing bus\n"); 3520 3521 ctrl_reg = *ctrl_reg_p; 3522 pbm_p->pbm_saved_ctrl_reg = ctrl_reg; 3523 ctrl_reg &= ~(SCHIZO_PCI_CTRL_ARB_EN_MASK | 3524 SCHIZO_PCI_CTRL_ARB_PARK); 3525 *ctrl_reg_p = ctrl_reg; 3526 #ifdef DEBUG 3527 ctrl_reg = *ctrl_reg_p; 3528 if ((ctrl_reg & (SCHIZO_PCI_CTRL_ARB_EN_MASK | 3529 SCHIZO_PCI_CTRL_ARB_PARK)) != 0) 3530 panic("ctrl_reg didn't quiesce: 0x%lx\n", ctrl_reg); 3531 #endif 3532 if (pbm_p->pbm_anychild_cfgpa) 3533 (void) ldphysio(pbm_p->pbm_anychild_cfgpa); 3534 } 3535 3536 return (DDI_SUCCESS); 3537 } 3538 3539 /* 3540 * pci_bus_unquiesce 3541 * 3542 * This function is called as the corresponding control ops routine 3543 * to a DDI_CTLOPS_UNQUIESCE command. Its mission is to resume paused 3544 * DMA activity on the bus by re-enabling arbitration (and maybe parking). 3545 */ 3546 int 3547 pci_bus_unquiesce(pci_t *pci_p, dev_info_t *dip, void *result) 3548 { 3549 volatile uint64_t *ctrl_reg_p; 3550 pbm_t *pbm_p; 3551 #ifdef DEBUG 3552 volatile uint64_t ctrl_reg; 3553 #endif 3554 3555 pbm_p = pci_p->pci_pbm_p; 3556 ctrl_reg_p = pbm_p->pbm_ctrl_reg; 3557 3558 ASSERT(pbm_p->pbm_quiesce_count > 0); 3559 if (--pbm_p->pbm_quiesce_count == 0) { 3560 *ctrl_reg_p = pbm_p->pbm_saved_ctrl_reg; 3561 #ifdef DEBUG 3562 ctrl_reg = *ctrl_reg_p; 3563 if ((ctrl_reg & (SCHIZO_PCI_CTRL_ARB_EN_MASK | 3564 SCHIZO_PCI_CTRL_ARB_PARK)) == 0) 3565 panic("ctrl_reg didn't unquiesce: 0x%lx\n", ctrl_reg); 3566 #endif 3567 } 3568 3569 return (DDI_SUCCESS); 3570 } 3571 3572 int 3573 pci_reloc_getkey(void) 3574 { 3575 return (0x200); 3576 } 3577 3578 static void 3579 tm_vmem_free(ddi_dma_impl_t *mp, iommu_t *iommu_p, dvma_addr_t dvma_pg, 3580 int npages) 3581 { 3582 uint32_t dur_max, dur_base; 3583 dvma_unbind_req_t *req_p, *req_max_p; 3584 dvma_unbind_req_t *req_base_p = iommu_p->iommu_mtlb_req_p; 3585 uint32_t tlb_vpn[IOMMU_TLB_ENTRIES]; 3586 caddr_t reg_base; 3587 volatile uint64_t *tag_p; 3588 int i, preserv_count = 0; 3589 3590 mutex_enter(&iommu_p->iommu_mtlb_lock); 3591 3592 iommu_p->iommu_mtlb_npgs += npages; 3593 req_max_p = req_base_p + iommu_p->iommu_mtlb_nreq++; 3594 req_max_p->dur_npg = npages; 3595 req_max_p->dur_base = dvma_pg; 3596 req_max_p->dur_flags = mp->dmai_flags & DMAI_FLAGS_VMEMCACHE; 3597 3598 3599 if (iommu_p->iommu_mtlb_npgs <= iommu_p->iommu_mtlb_maxpgs) 3600 goto done; 3601 3602 /* read TLB */ 3603 reg_base = iommu_p->iommu_pci_p->pci_address[0]; 3604 tag_p = (volatile uint64_t *) 3605 (reg_base + COMMON_IOMMU_TLB_TAG_DIAG_ACC_OFFSET); 3606 3607 for (i = 0; i < IOMMU_TLB_ENTRIES; i++) 3608 tlb_vpn[i] = tag_p[i] & SCHIZO_VPN_MASK; 3609 3610 /* for each request search the TLB for a matching address */ 3611 for (req_p = req_base_p; req_p <= req_max_p; req_p++) { 3612 dur_base = req_p->dur_base; 3613 dur_max = req_p->dur_base + req_p->dur_npg; 3614 3615 for (i = 0; i < IOMMU_TLB_ENTRIES; i++) { 3616 uint_t vpn = tlb_vpn[i]; 3617 if (vpn >= dur_base && vpn < dur_max) 3618 break; 3619 } 3620 if (i >= IOMMU_TLB_ENTRIES) { 3621 pci_vmem_do_free(iommu_p, 3622 (void *)IOMMU_PTOB(req_p->dur_base), 3623 req_p->dur_npg, req_p->dur_flags); 3624 iommu_p->iommu_mtlb_npgs -= req_p->dur_npg; 3625 continue; 3626 } 3627 /* if an empty slot exists */ 3628 if ((req_p - req_base_p) != preserv_count) 3629 *(req_base_p + preserv_count) = *req_p; 3630 preserv_count++; 3631 } 3632 3633 iommu_p->iommu_mtlb_nreq = preserv_count; 3634 done: 3635 mutex_exit(&iommu_p->iommu_mtlb_lock); 3636 } 3637 3638 void 3639 pci_vmem_free(iommu_t *iommu_p, ddi_dma_impl_t *mp, void *dvma_addr, 3640 size_t npages) 3641 { 3642 if (tm_mtlb_gc) 3643 tm_vmem_free(mp, iommu_p, 3644 (dvma_addr_t)IOMMU_BTOP((dvma_addr_t)dvma_addr), npages); 3645 else 3646 pci_vmem_do_free(iommu_p, dvma_addr, npages, 3647 (mp->dmai_flags & DMAI_FLAGS_VMEMCACHE)); 3648 } 3649 3650 /* 3651 * pci_iommu_bypass_end_configure 3652 * 3653 * Support for 42-bit bus width to SAFARI and JBUS in DVMA and 3654 * iommu bypass transfers: 3655 */ 3656 3657 dma_bypass_addr_t 3658 pci_iommu_bypass_end_configure(void) 3659 { 3660 3661 return ((dma_bypass_addr_t)SAFARI_JBUS_IOMMU_BYPASS_END); 3662 } 3663
Indexes created Mon Mar 22 11:35:46 UTC 2010
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