pci_subr.c revision 1.94
1 /* $NetBSD: pci_subr.c,v 1.94 2012/10/20 05:32:25 matt Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Zubin D. Dittia. All rights reserved. 5 * Copyright (c) 1995, 1996, 1998, 2000 6 * Christopher G. Demetriou. All rights reserved. 7 * Copyright (c) 1994 Charles M. Hannum. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by Charles M. Hannum. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* 36 * PCI autoconfiguration support functions. 37 * 38 * Note: This file is also built into a userland library (libpci). 39 * Pay attention to this when you make modifications. 40 */ 41 42 #include <sys/cdefs.h> 43 __KERNEL_RCSID(0, "$NetBSD: pci_subr.c,v 1.94 2012/10/20 05:32:25 matt Exp $"); 44 45 #ifdef _KERNEL_OPT 46 #include "opt_pci.h" 47 #endif 48 49 #include <sys/param.h> 50 51 #ifdef _KERNEL 52 #include <sys/systm.h> 53 #include <sys/intr.h> 54 #include <sys/module.h> 55 #else 56 #include <pci.h> 57 #include <stdbool.h> 58 #include <stdio.h> 59 #endif 60 61 #include <dev/pci/pcireg.h> 62 #ifdef _KERNEL 63 #include <dev/pci/pcivar.h> 64 #endif 65 66 /* 67 * Descriptions of known PCI classes and subclasses. 68 * 69 * Subclasses are described in the same way as classes, but have a 70 * NULL subclass pointer. 71 */ 72 struct pci_class { 73 const char *name; 74 u_int val; /* as wide as pci_{,sub}class_t */ 75 const struct pci_class *subclasses; 76 }; 77 78 static const struct pci_class pci_subclass_prehistoric[] = { 79 { "miscellaneous", PCI_SUBCLASS_PREHISTORIC_MISC, NULL, }, 80 { "VGA", PCI_SUBCLASS_PREHISTORIC_VGA, NULL, }, 81 { NULL, 0, NULL, }, 82 }; 83 84 static const struct pci_class pci_subclass_mass_storage[] = { 85 { "SCSI", PCI_SUBCLASS_MASS_STORAGE_SCSI, NULL, }, 86 { "IDE", PCI_SUBCLASS_MASS_STORAGE_IDE, NULL, }, 87 { "floppy", PCI_SUBCLASS_MASS_STORAGE_FLOPPY, NULL, }, 88 { "IPI", PCI_SUBCLASS_MASS_STORAGE_IPI, NULL, }, 89 { "RAID", PCI_SUBCLASS_MASS_STORAGE_RAID, NULL, }, 90 { "ATA", PCI_SUBCLASS_MASS_STORAGE_ATA, NULL, }, 91 { "SATA", PCI_SUBCLASS_MASS_STORAGE_SATA, NULL, }, 92 { "SAS", PCI_SUBCLASS_MASS_STORAGE_SAS, NULL, }, 93 { "NVM", PCI_SUBCLASS_MASS_STORAGE_NVM, NULL, }, 94 { "miscellaneous", PCI_SUBCLASS_MASS_STORAGE_MISC, NULL, }, 95 { NULL, 0, NULL, }, 96 }; 97 98 static const struct pci_class pci_subclass_network[] = { 99 { "ethernet", PCI_SUBCLASS_NETWORK_ETHERNET, NULL, }, 100 { "token ring", PCI_SUBCLASS_NETWORK_TOKENRING, NULL, }, 101 { "FDDI", PCI_SUBCLASS_NETWORK_FDDI, NULL, }, 102 { "ATM", PCI_SUBCLASS_NETWORK_ATM, NULL, }, 103 { "ISDN", PCI_SUBCLASS_NETWORK_ISDN, NULL, }, 104 { "WorldFip", PCI_SUBCLASS_NETWORK_WORLDFIP, NULL, }, 105 { "PCMIG Multi Computing", PCI_SUBCLASS_NETWORK_PCIMGMULTICOMP, NULL, }, 106 { "miscellaneous", PCI_SUBCLASS_NETWORK_MISC, NULL, }, 107 { NULL, 0, NULL, }, 108 }; 109 110 static const struct pci_class pci_subclass_display[] = { 111 { "VGA", PCI_SUBCLASS_DISPLAY_VGA, NULL, }, 112 { "XGA", PCI_SUBCLASS_DISPLAY_XGA, NULL, }, 113 { "3D", PCI_SUBCLASS_DISPLAY_3D, NULL, }, 114 { "miscellaneous", PCI_SUBCLASS_DISPLAY_MISC, NULL, }, 115 { NULL, 0, NULL, }, 116 }; 117 118 static const struct pci_class pci_subclass_multimedia[] = { 119 { "video", PCI_SUBCLASS_MULTIMEDIA_VIDEO, NULL, }, 120 { "audio", PCI_SUBCLASS_MULTIMEDIA_AUDIO, NULL, }, 121 { "telephony", PCI_SUBCLASS_MULTIMEDIA_TELEPHONY, NULL,}, 122 { "HD audio", PCI_SUBCLASS_MULTIMEDIA_HDAUDIO, NULL, }, 123 { "miscellaneous", PCI_SUBCLASS_MULTIMEDIA_MISC, NULL, }, 124 { NULL, 0, NULL, }, 125 }; 126 127 static const struct pci_class pci_subclass_memory[] = { 128 { "RAM", PCI_SUBCLASS_MEMORY_RAM, NULL, }, 129 { "flash", PCI_SUBCLASS_MEMORY_FLASH, NULL, }, 130 { "miscellaneous", PCI_SUBCLASS_MEMORY_MISC, NULL, }, 131 { NULL, 0, NULL, }, 132 }; 133 134 static const struct pci_class pci_subclass_bridge[] = { 135 { "host", PCI_SUBCLASS_BRIDGE_HOST, NULL, }, 136 { "ISA", PCI_SUBCLASS_BRIDGE_ISA, NULL, }, 137 { "EISA", PCI_SUBCLASS_BRIDGE_EISA, NULL, }, 138 { "MicroChannel", PCI_SUBCLASS_BRIDGE_MC, NULL, }, 139 { "PCI", PCI_SUBCLASS_BRIDGE_PCI, NULL, }, 140 { "PCMCIA", PCI_SUBCLASS_BRIDGE_PCMCIA, NULL, }, 141 { "NuBus", PCI_SUBCLASS_BRIDGE_NUBUS, NULL, }, 142 { "CardBus", PCI_SUBCLASS_BRIDGE_CARDBUS, NULL, }, 143 { "RACEway", PCI_SUBCLASS_BRIDGE_RACEWAY, NULL, }, 144 { "Semi-transparent PCI", PCI_SUBCLASS_BRIDGE_STPCI, NULL, }, 145 { "InfiniBand", PCI_SUBCLASS_BRIDGE_INFINIBAND, NULL, }, 146 { "miscellaneous", PCI_SUBCLASS_BRIDGE_MISC, NULL, }, 147 { NULL, 0, NULL, }, 148 }; 149 150 static const struct pci_class pci_subclass_communications[] = { 151 { "serial", PCI_SUBCLASS_COMMUNICATIONS_SERIAL, NULL, }, 152 { "parallel", PCI_SUBCLASS_COMMUNICATIONS_PARALLEL, NULL, }, 153 { "multi-port serial", PCI_SUBCLASS_COMMUNICATIONS_MPSERIAL, NULL, }, 154 { "modem", PCI_SUBCLASS_COMMUNICATIONS_MODEM, NULL, }, 155 { "GPIB", PCI_SUBCLASS_COMMUNICATIONS_GPIB, NULL, }, 156 { "smartcard", PCI_SUBCLASS_COMMUNICATIONS_SMARTCARD, NULL, }, 157 { "miscellaneous", PCI_SUBCLASS_COMMUNICATIONS_MISC, NULL, }, 158 { NULL, 0, NULL, }, 159 }; 160 161 static const struct pci_class pci_subclass_system[] = { 162 { "interrupt", PCI_SUBCLASS_SYSTEM_PIC, NULL, }, 163 { "8237 DMA", PCI_SUBCLASS_SYSTEM_DMA, NULL, }, 164 { "8254 timer", PCI_SUBCLASS_SYSTEM_TIMER, NULL, }, 165 { "RTC", PCI_SUBCLASS_SYSTEM_RTC, NULL, }, 166 { "PCI Hot-Plug", PCI_SUBCLASS_SYSTEM_PCIHOTPLUG, NULL, }, 167 { "SD Host Controller", PCI_SUBCLASS_SYSTEM_SDHC, NULL, }, 168 { "miscellaneous", PCI_SUBCLASS_SYSTEM_MISC, NULL, }, 169 { NULL, 0, NULL, }, 170 }; 171 172 static const struct pci_class pci_subclass_input[] = { 173 { "keyboard", PCI_SUBCLASS_INPUT_KEYBOARD, NULL, }, 174 { "digitizer", PCI_SUBCLASS_INPUT_DIGITIZER, NULL, }, 175 { "mouse", PCI_SUBCLASS_INPUT_MOUSE, NULL, }, 176 { "scanner", PCI_SUBCLASS_INPUT_SCANNER, NULL, }, 177 { "game port", PCI_SUBCLASS_INPUT_GAMEPORT, NULL, }, 178 { "miscellaneous", PCI_SUBCLASS_INPUT_MISC, NULL, }, 179 { NULL, 0, NULL, }, 180 }; 181 182 static const struct pci_class pci_subclass_dock[] = { 183 { "generic", PCI_SUBCLASS_DOCK_GENERIC, NULL, }, 184 { "miscellaneous", PCI_SUBCLASS_DOCK_MISC, NULL, }, 185 { NULL, 0, NULL, }, 186 }; 187 188 static const struct pci_class pci_subclass_processor[] = { 189 { "386", PCI_SUBCLASS_PROCESSOR_386, NULL, }, 190 { "486", PCI_SUBCLASS_PROCESSOR_486, NULL, }, 191 { "Pentium", PCI_SUBCLASS_PROCESSOR_PENTIUM, NULL, }, 192 { "Alpha", PCI_SUBCLASS_PROCESSOR_ALPHA, NULL, }, 193 { "PowerPC", PCI_SUBCLASS_PROCESSOR_POWERPC, NULL, }, 194 { "MIPS", PCI_SUBCLASS_PROCESSOR_MIPS, NULL, }, 195 { "Co-processor", PCI_SUBCLASS_PROCESSOR_COPROC, NULL, }, 196 { NULL, 0, NULL, }, 197 }; 198 199 static const struct pci_class pci_subclass_serialbus[] = { 200 { "Firewire", PCI_SUBCLASS_SERIALBUS_FIREWIRE, NULL, }, 201 { "ACCESS.bus", PCI_SUBCLASS_SERIALBUS_ACCESS, NULL, }, 202 { "SSA", PCI_SUBCLASS_SERIALBUS_SSA, NULL, }, 203 { "USB", PCI_SUBCLASS_SERIALBUS_USB, NULL, }, 204 /* XXX Fiber Channel/_FIBRECHANNEL */ 205 { "Fiber Channel", PCI_SUBCLASS_SERIALBUS_FIBER, NULL, }, 206 { "SMBus", PCI_SUBCLASS_SERIALBUS_SMBUS, NULL, }, 207 { "InfiniBand", PCI_SUBCLASS_SERIALBUS_INFINIBAND, NULL,}, 208 { "IPMI", PCI_SUBCLASS_SERIALBUS_IPMI, NULL, }, 209 { "SERCOS", PCI_SUBCLASS_SERIALBUS_SERCOS, NULL, }, 210 { "CANbus", PCI_SUBCLASS_SERIALBUS_CANBUS, NULL, }, 211 { NULL, 0, NULL, }, 212 }; 213 214 static const struct pci_class pci_subclass_wireless[] = { 215 { "IrDA", PCI_SUBCLASS_WIRELESS_IRDA, NULL, }, 216 { "Consumer IR", PCI_SUBCLASS_WIRELESS_CONSUMERIR, NULL, }, 217 { "RF", PCI_SUBCLASS_WIRELESS_RF, NULL, }, 218 { "bluetooth", PCI_SUBCLASS_WIRELESS_BLUETOOTH, NULL, }, 219 { "broadband", PCI_SUBCLASS_WIRELESS_BROADBAND, NULL, }, 220 { "802.11a (5 GHz)", PCI_SUBCLASS_WIRELESS_802_11A, NULL, }, 221 { "802.11b (2.4 GHz)", PCI_SUBCLASS_WIRELESS_802_11B, NULL, }, 222 { "miscellaneous", PCI_SUBCLASS_WIRELESS_MISC, NULL, }, 223 { NULL, 0, NULL, }, 224 }; 225 226 static const struct pci_class pci_subclass_i2o[] = { 227 { "standard", PCI_SUBCLASS_I2O_STANDARD, NULL, }, 228 { NULL, 0, NULL, }, 229 }; 230 231 static const struct pci_class pci_subclass_satcom[] = { 232 { "TV", PCI_SUBCLASS_SATCOM_TV, NULL, }, 233 { "audio", PCI_SUBCLASS_SATCOM_AUDIO, NULL, }, 234 { "voice", PCI_SUBCLASS_SATCOM_VOICE, NULL, }, 235 { "data", PCI_SUBCLASS_SATCOM_DATA, NULL, }, 236 { NULL, 0, NULL, }, 237 }; 238 239 static const struct pci_class pci_subclass_crypto[] = { 240 { "network/computing", PCI_SUBCLASS_CRYPTO_NETCOMP, NULL, }, 241 { "entertainment", PCI_SUBCLASS_CRYPTO_ENTERTAINMENT, NULL,}, 242 { "miscellaneous", PCI_SUBCLASS_CRYPTO_MISC, NULL, }, 243 { NULL, 0, NULL, }, 244 }; 245 246 static const struct pci_class pci_subclass_dasp[] = { 247 { "DPIO", PCI_SUBCLASS_DASP_DPIO, NULL, }, 248 { "Time and Frequency", PCI_SUBCLASS_DASP_TIMEFREQ, NULL, }, 249 { "synchronization", PCI_SUBCLASS_DASP_SYNC, NULL, }, 250 { "management", PCI_SUBCLASS_DASP_MGMT, NULL, }, 251 { "miscellaneous", PCI_SUBCLASS_DASP_MISC, NULL, }, 252 { NULL, 0, NULL, }, 253 }; 254 255 static const struct pci_class pci_class[] = { 256 { "prehistoric", PCI_CLASS_PREHISTORIC, 257 pci_subclass_prehistoric, }, 258 { "mass storage", PCI_CLASS_MASS_STORAGE, 259 pci_subclass_mass_storage, }, 260 { "network", PCI_CLASS_NETWORK, 261 pci_subclass_network, }, 262 { "display", PCI_CLASS_DISPLAY, 263 pci_subclass_display, }, 264 { "multimedia", PCI_CLASS_MULTIMEDIA, 265 pci_subclass_multimedia, }, 266 { "memory", PCI_CLASS_MEMORY, 267 pci_subclass_memory, }, 268 { "bridge", PCI_CLASS_BRIDGE, 269 pci_subclass_bridge, }, 270 { "communications", PCI_CLASS_COMMUNICATIONS, 271 pci_subclass_communications, }, 272 { "system", PCI_CLASS_SYSTEM, 273 pci_subclass_system, }, 274 { "input", PCI_CLASS_INPUT, 275 pci_subclass_input, }, 276 { "dock", PCI_CLASS_DOCK, 277 pci_subclass_dock, }, 278 { "processor", PCI_CLASS_PROCESSOR, 279 pci_subclass_processor, }, 280 { "serial bus", PCI_CLASS_SERIALBUS, 281 pci_subclass_serialbus, }, 282 { "wireless", PCI_CLASS_WIRELESS, 283 pci_subclass_wireless, }, 284 { "I2O", PCI_CLASS_I2O, 285 pci_subclass_i2o, }, 286 { "satellite comm", PCI_CLASS_SATCOM, 287 pci_subclass_satcom, }, 288 { "crypto", PCI_CLASS_CRYPTO, 289 pci_subclass_crypto, }, 290 { "DASP", PCI_CLASS_DASP, 291 pci_subclass_dasp, }, 292 { "undefined", PCI_CLASS_UNDEFINED, 293 NULL, }, 294 { NULL, 0, 295 NULL, }, 296 }; 297 298 void pci_load_verbose(void); 299 300 #if defined(_KERNEL) 301 /* 302 * In kernel, these routines are provided and linked via the 303 * pciverbose module. 304 */ 305 const char *pci_findvendor_stub(pcireg_t); 306 const char *pci_findproduct_stub(pcireg_t); 307 308 const char *(*pci_findvendor)(pcireg_t) = pci_findvendor_stub; 309 const char *(*pci_findproduct)(pcireg_t) = pci_findproduct_stub; 310 const char *pci_unmatched = ""; 311 #else 312 /* 313 * For userland we just set the vectors here. 314 */ 315 const char *(*pci_findvendor)(pcireg_t id_reg) = pci_findvendor_real; 316 const char *(*pci_findproduct)(pcireg_t id_reg) = pci_findproduct_real; 317 const char *pci_unmatched = "unmatched "; 318 #endif 319 320 int pciverbose_loaded = 0; 321 322 #if defined(_KERNEL) 323 /* 324 * Routine to load the pciverbose kernel module as needed 325 */ 326 void pci_load_verbose(void) 327 { 328 if (pciverbose_loaded == 0) 329 module_autoload("pciverbose", MODULE_CLASS_MISC); 330 } 331 332 const char *pci_findvendor_stub(pcireg_t id_reg) 333 { 334 pci_load_verbose(); 335 if (pciverbose_loaded) 336 return pci_findvendor(id_reg); 337 else 338 return NULL; 339 } 340 341 const char *pci_findproduct_stub(pcireg_t id_reg) 342 { 343 pci_load_verbose(); 344 if (pciverbose_loaded) 345 return pci_findproduct(id_reg); 346 else 347 return NULL; 348 } 349 #endif 350 351 void 352 pci_devinfo(pcireg_t id_reg, pcireg_t class_reg, int showclass, char *cp, 353 size_t l) 354 { 355 pci_vendor_id_t vendor; 356 pci_product_id_t product; 357 pci_class_t class; 358 pci_subclass_t subclass; 359 pci_interface_t interface; 360 pci_revision_t revision; 361 const char *unmatched = pci_unmatched; 362 const char *vendor_namep, *product_namep; 363 const struct pci_class *classp, *subclassp; 364 char *ep; 365 366 ep = cp + l; 367 368 vendor = PCI_VENDOR(id_reg); 369 product = PCI_PRODUCT(id_reg); 370 371 class = PCI_CLASS(class_reg); 372 subclass = PCI_SUBCLASS(class_reg); 373 interface = PCI_INTERFACE(class_reg); 374 revision = PCI_REVISION(class_reg); 375 376 vendor_namep = pci_findvendor(id_reg); 377 product_namep = pci_findproduct(id_reg); 378 379 classp = pci_class; 380 while (classp->name != NULL) { 381 if (class == classp->val) 382 break; 383 classp++; 384 } 385 386 subclassp = (classp->name != NULL) ? classp->subclasses : NULL; 387 while (subclassp && subclassp->name != NULL) { 388 if (subclass == subclassp->val) 389 break; 390 subclassp++; 391 } 392 393 if (vendor_namep == NULL) 394 cp += snprintf(cp, ep - cp, "%svendor 0x%04x product 0x%04x", 395 unmatched, vendor, product); 396 else if (product_namep != NULL) 397 cp += snprintf(cp, ep - cp, "%s %s", vendor_namep, 398 product_namep); 399 else 400 cp += snprintf(cp, ep - cp, "%s product 0x%04x", 401 vendor_namep, product); 402 if (showclass) { 403 cp += snprintf(cp, ep - cp, " ("); 404 if (classp->name == NULL) 405 cp += snprintf(cp, ep - cp, 406 "class 0x%02x, subclass 0x%02x", class, subclass); 407 else { 408 if (subclassp == NULL || subclassp->name == NULL) 409 cp += snprintf(cp, ep - cp, 410 "%s, subclass 0x%02x", 411 classp->name, subclass); 412 else 413 cp += snprintf(cp, ep - cp, "%s %s", 414 subclassp->name, classp->name); 415 } 416 if (interface != 0) 417 cp += snprintf(cp, ep - cp, ", interface 0x%02x", 418 interface); 419 if (revision != 0) 420 cp += snprintf(cp, ep - cp, ", revision 0x%02x", 421 revision); 422 cp += snprintf(cp, ep - cp, ")"); 423 } 424 } 425 426 #ifdef _KERNEL 427 void 428 pci_aprint_devinfo_fancy(const struct pci_attach_args *pa, const char *naive, 429 const char *known, int addrev) 430 { 431 char devinfo[256]; 432 433 if (known) { 434 aprint_normal(": %s", known); 435 if (addrev) 436 aprint_normal(" (rev. 0x%02x)", 437 PCI_REVISION(pa->pa_class)); 438 aprint_normal("\n"); 439 } else { 440 pci_devinfo(pa->pa_id, pa->pa_class, 0, 441 devinfo, sizeof(devinfo)); 442 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, 443 PCI_REVISION(pa->pa_class)); 444 } 445 if (naive) 446 aprint_naive(": %s\n", naive); 447 else 448 aprint_naive("\n"); 449 } 450 #endif 451 452 /* 453 * Print out most of the PCI configuration registers. Typically used 454 * in a device attach routine like this: 455 * 456 * #ifdef MYDEV_DEBUG 457 * printf("%s: ", device_xname(&sc->sc_dev)); 458 * pci_conf_print(pa->pa_pc, pa->pa_tag, NULL); 459 * #endif 460 */ 461 462 #define i2o(i) ((i) * 4) 463 #define o2i(o) ((o) / 4) 464 #define onoff2(str, bit, onstr, offstr) \ 465 printf(" %s: %s\n", (str), (rval & (bit)) ? onstr : offstr); 466 #define onoff(str, bit) onoff2(str, bit, "on", "off") 467 468 static void 469 pci_conf_print_common( 470 #ifdef _KERNEL 471 pci_chipset_tag_t pc, pcitag_t tag, 472 #endif 473 const pcireg_t *regs) 474 { 475 const char *name; 476 const struct pci_class *classp, *subclassp; 477 pcireg_t rval; 478 479 rval = regs[o2i(PCI_ID_REG)]; 480 name = pci_findvendor(rval); 481 if (name) 482 printf(" Vendor Name: %s (0x%04x)\n", name, 483 PCI_VENDOR(rval)); 484 else 485 printf(" Vendor ID: 0x%04x\n", PCI_VENDOR(rval)); 486 name = pci_findproduct(rval); 487 if (name) 488 printf(" Device Name: %s (0x%04x)\n", name, 489 PCI_PRODUCT(rval)); 490 else 491 printf(" Device ID: 0x%04x\n", PCI_PRODUCT(rval)); 492 493 rval = regs[o2i(PCI_COMMAND_STATUS_REG)]; 494 495 printf(" Command register: 0x%04x\n", rval & 0xffff); 496 onoff("I/O space accesses", PCI_COMMAND_IO_ENABLE); 497 onoff("Memory space accesses", PCI_COMMAND_MEM_ENABLE); 498 onoff("Bus mastering", PCI_COMMAND_MASTER_ENABLE); 499 onoff("Special cycles", PCI_COMMAND_SPECIAL_ENABLE); 500 onoff("MWI transactions", PCI_COMMAND_INVALIDATE_ENABLE); 501 onoff("Palette snooping", PCI_COMMAND_PALETTE_ENABLE); 502 onoff("Parity error checking", PCI_COMMAND_PARITY_ENABLE); 503 onoff("Address/data stepping", PCI_COMMAND_STEPPING_ENABLE); 504 onoff("System error (SERR)", PCI_COMMAND_SERR_ENABLE); 505 onoff("Fast back-to-back transactions", PCI_COMMAND_BACKTOBACK_ENABLE); 506 onoff("Interrupt disable", PCI_COMMAND_INTERRUPT_DISABLE); 507 508 printf(" Status register: 0x%04x\n", (rval >> 16) & 0xffff); 509 onoff2("Interrupt status", PCI_STATUS_INT_STATUS, "active", "inactive"); 510 onoff("Capability List support", PCI_STATUS_CAPLIST_SUPPORT); 511 onoff("66 MHz capable", PCI_STATUS_66MHZ_SUPPORT); 512 onoff("User Definable Features (UDF) support", PCI_STATUS_UDF_SUPPORT); 513 onoff("Fast back-to-back capable", PCI_STATUS_BACKTOBACK_SUPPORT); 514 onoff("Data parity error detected", PCI_STATUS_PARITY_ERROR); 515 516 printf(" DEVSEL timing: "); 517 switch (rval & PCI_STATUS_DEVSEL_MASK) { 518 case PCI_STATUS_DEVSEL_FAST: 519 printf("fast"); 520 break; 521 case PCI_STATUS_DEVSEL_MEDIUM: 522 printf("medium"); 523 break; 524 case PCI_STATUS_DEVSEL_SLOW: 525 printf("slow"); 526 break; 527 default: 528 printf("unknown/reserved"); /* XXX */ 529 break; 530 } 531 printf(" (0x%x)\n", (rval & PCI_STATUS_DEVSEL_MASK) >> 25); 532 533 onoff("Slave signaled Target Abort", PCI_STATUS_TARGET_TARGET_ABORT); 534 onoff("Master received Target Abort", PCI_STATUS_MASTER_TARGET_ABORT); 535 onoff("Master received Master Abort", PCI_STATUS_MASTER_ABORT); 536 onoff("Asserted System Error (SERR)", PCI_STATUS_SPECIAL_ERROR); 537 onoff("Parity error detected", PCI_STATUS_PARITY_DETECT); 538 539 rval = regs[o2i(PCI_CLASS_REG)]; 540 for (classp = pci_class; classp->name != NULL; classp++) { 541 if (PCI_CLASS(rval) == classp->val) 542 break; 543 } 544 subclassp = (classp->name != NULL) ? classp->subclasses : NULL; 545 while (subclassp && subclassp->name != NULL) { 546 if (PCI_SUBCLASS(rval) == subclassp->val) 547 break; 548 subclassp++; 549 } 550 if (classp->name != NULL) { 551 printf(" Class Name: %s (0x%02x)\n", classp->name, 552 PCI_CLASS(rval)); 553 if (subclassp != NULL && subclassp->name != NULL) 554 printf(" Subclass Name: %s (0x%02x)\n", 555 subclassp->name, PCI_SUBCLASS(rval)); 556 else 557 printf(" Subclass ID: 0x%02x\n", PCI_SUBCLASS(rval)); 558 } else { 559 printf(" Class ID: 0x%02x\n", PCI_CLASS(rval)); 560 printf(" Subclass ID: 0x%02x\n", PCI_SUBCLASS(rval)); 561 } 562 printf(" Interface: 0x%02x\n", PCI_INTERFACE(rval)); 563 printf(" Revision ID: 0x%02x\n", PCI_REVISION(rval)); 564 565 rval = regs[o2i(PCI_BHLC_REG)]; 566 printf(" BIST: 0x%02x\n", PCI_BIST(rval)); 567 printf(" Header Type: 0x%02x%s (0x%02x)\n", PCI_HDRTYPE_TYPE(rval), 568 PCI_HDRTYPE_MULTIFN(rval) ? "+multifunction" : "", 569 PCI_HDRTYPE(rval)); 570 printf(" Latency Timer: 0x%02x\n", PCI_LATTIMER(rval)); 571 printf(" Cache Line Size: 0x%02x\n", PCI_CACHELINE(rval)); 572 } 573 574 static int 575 pci_conf_print_bar( 576 #ifdef _KERNEL 577 pci_chipset_tag_t pc, pcitag_t tag, 578 #endif 579 const pcireg_t *regs, int reg, const char *name 580 #ifdef _KERNEL 581 , int sizebar 582 #endif 583 ) 584 { 585 int width; 586 pcireg_t rval, rval64h; 587 #ifdef _KERNEL 588 int s; 589 pcireg_t mask, mask64h; 590 #endif 591 592 width = 4; 593 594 /* 595 * Section 6.2.5.1, `Address Maps', tells us that: 596 * 597 * 1) The builtin software should have already mapped the 598 * device in a reasonable way. 599 * 600 * 2) A device which wants 2^n bytes of memory will hardwire 601 * the bottom n bits of the address to 0. As recommended, 602 * we write all 1s and see what we get back. 603 */ 604 605 rval = regs[o2i(reg)]; 606 if (PCI_MAPREG_TYPE(rval) == PCI_MAPREG_TYPE_MEM && 607 PCI_MAPREG_MEM_TYPE(rval) == PCI_MAPREG_MEM_TYPE_64BIT) { 608 rval64h = regs[o2i(reg + 4)]; 609 width = 8; 610 } else 611 rval64h = 0; 612 613 #ifdef _KERNEL 614 /* XXX don't size unknown memory type? */ 615 if (rval != 0 && sizebar) { 616 /* 617 * The following sequence seems to make some devices 618 * (e.g. host bus bridges, which don't normally 619 * have their space mapped) very unhappy, to 620 * the point of crashing the system. 621 * 622 * Therefore, if the mapping register is zero to 623 * start out with, don't bother trying. 624 */ 625 s = splhigh(); 626 pci_conf_write(pc, tag, reg, 0xffffffff); 627 mask = pci_conf_read(pc, tag, reg); 628 pci_conf_write(pc, tag, reg, rval); 629 if (PCI_MAPREG_TYPE(rval) == PCI_MAPREG_TYPE_MEM && 630 PCI_MAPREG_MEM_TYPE(rval) == PCI_MAPREG_MEM_TYPE_64BIT) { 631 pci_conf_write(pc, tag, reg + 4, 0xffffffff); 632 mask64h = pci_conf_read(pc, tag, reg + 4); 633 pci_conf_write(pc, tag, reg + 4, rval64h); 634 } else 635 mask64h = 0; 636 splx(s); 637 } else 638 mask = mask64h = 0; 639 #endif /* _KERNEL */ 640 641 printf(" Base address register at 0x%02x", reg); 642 if (name) 643 printf(" (%s)", name); 644 printf("\n "); 645 if (rval == 0) { 646 printf("not implemented(?)\n"); 647 return width; 648 } 649 printf("type: "); 650 if (PCI_MAPREG_TYPE(rval) == PCI_MAPREG_TYPE_MEM) { 651 const char *type, *prefetch; 652 653 switch (PCI_MAPREG_MEM_TYPE(rval)) { 654 case PCI_MAPREG_MEM_TYPE_32BIT: 655 type = "32-bit"; 656 break; 657 case PCI_MAPREG_MEM_TYPE_32BIT_1M: 658 type = "32-bit-1M"; 659 break; 660 case PCI_MAPREG_MEM_TYPE_64BIT: 661 type = "64-bit"; 662 break; 663 default: 664 type = "unknown (XXX)"; 665 break; 666 } 667 if (PCI_MAPREG_MEM_PREFETCHABLE(rval)) 668 prefetch = ""; 669 else 670 prefetch = "non"; 671 printf("%s %sprefetchable memory\n", type, prefetch); 672 switch (PCI_MAPREG_MEM_TYPE(rval)) { 673 case PCI_MAPREG_MEM_TYPE_64BIT: 674 printf(" base: 0x%016llx, ", 675 PCI_MAPREG_MEM64_ADDR( 676 ((((long long) rval64h) << 32) | rval))); 677 #ifdef _KERNEL 678 if (sizebar) 679 printf("size: 0x%016llx", 680 PCI_MAPREG_MEM64_SIZE( 681 ((((long long) mask64h) << 32) | mask))); 682 else 683 #endif /* _KERNEL */ 684 printf("not sized"); 685 printf("\n"); 686 break; 687 case PCI_MAPREG_MEM_TYPE_32BIT: 688 case PCI_MAPREG_MEM_TYPE_32BIT_1M: 689 default: 690 printf(" base: 0x%08x, ", 691 PCI_MAPREG_MEM_ADDR(rval)); 692 #ifdef _KERNEL 693 if (sizebar) 694 printf("size: 0x%08x", 695 PCI_MAPREG_MEM_SIZE(mask)); 696 else 697 #endif /* _KERNEL */ 698 printf("not sized"); 699 printf("\n"); 700 break; 701 } 702 } else { 703 #ifdef _KERNEL 704 if (sizebar) 705 printf("%d-bit ", mask & ~0x0000ffff ? 32 : 16); 706 #endif /* _KERNEL */ 707 printf("i/o\n"); 708 printf(" base: 0x%08x, ", PCI_MAPREG_IO_ADDR(rval)); 709 #ifdef _KERNEL 710 if (sizebar) 711 printf("size: 0x%08x", PCI_MAPREG_IO_SIZE(mask)); 712 else 713 #endif /* _KERNEL */ 714 printf("not sized"); 715 printf("\n"); 716 } 717 718 return width; 719 } 720 721 static void 722 pci_conf_print_regs(const pcireg_t *regs, int first, int pastlast) 723 { 724 int off, needaddr, neednl; 725 726 needaddr = 1; 727 neednl = 0; 728 for (off = first; off < pastlast; off += 4) { 729 if ((off % 16) == 0 || needaddr) { 730 printf(" 0x%02x:", off); 731 needaddr = 0; 732 } 733 printf(" 0x%08x", regs[o2i(off)]); 734 neednl = 1; 735 if ((off % 16) == 12) { 736 printf("\n"); 737 neednl = 0; 738 } 739 } 740 if (neednl) 741 printf("\n"); 742 } 743 744 static void 745 pci_conf_print_type0( 746 #ifdef _KERNEL 747 pci_chipset_tag_t pc, pcitag_t tag, 748 #endif 749 const pcireg_t *regs 750 #ifdef _KERNEL 751 , int sizebars 752 #endif 753 ) 754 { 755 int off, width; 756 pcireg_t rval; 757 758 for (off = PCI_MAPREG_START; off < PCI_MAPREG_END; off += width) { 759 #ifdef _KERNEL 760 width = pci_conf_print_bar(pc, tag, regs, off, NULL, sizebars); 761 #else 762 width = pci_conf_print_bar(regs, off, NULL); 763 #endif 764 } 765 766 printf(" Cardbus CIS Pointer: 0x%08x\n", regs[o2i(0x28)]); 767 768 rval = regs[o2i(PCI_SUBSYS_ID_REG)]; 769 printf(" Subsystem vendor ID: 0x%04x\n", PCI_VENDOR(rval)); 770 printf(" Subsystem ID: 0x%04x\n", PCI_PRODUCT(rval)); 771 772 /* XXX */ 773 printf(" Expansion ROM Base Address: 0x%08x\n", regs[o2i(0x30)]); 774 775 if (regs[o2i(PCI_COMMAND_STATUS_REG)] & PCI_STATUS_CAPLIST_SUPPORT) 776 printf(" Capability list pointer: 0x%02x\n", 777 PCI_CAPLIST_PTR(regs[o2i(PCI_CAPLISTPTR_REG)])); 778 else 779 printf(" Reserved @ 0x34: 0x%08x\n", regs[o2i(0x34)]); 780 781 printf(" Reserved @ 0x38: 0x%08x\n", regs[o2i(0x38)]); 782 783 rval = regs[o2i(PCI_INTERRUPT_REG)]; 784 printf(" Maximum Latency: 0x%02x\n", (rval >> 24) & 0xff); 785 printf(" Minimum Grant: 0x%02x\n", (rval >> 16) & 0xff); 786 printf(" Interrupt pin: 0x%02x ", PCI_INTERRUPT_PIN(rval)); 787 switch (PCI_INTERRUPT_PIN(rval)) { 788 case PCI_INTERRUPT_PIN_NONE: 789 printf("(none)"); 790 break; 791 case PCI_INTERRUPT_PIN_A: 792 printf("(pin A)"); 793 break; 794 case PCI_INTERRUPT_PIN_B: 795 printf("(pin B)"); 796 break; 797 case PCI_INTERRUPT_PIN_C: 798 printf("(pin C)"); 799 break; 800 case PCI_INTERRUPT_PIN_D: 801 printf("(pin D)"); 802 break; 803 default: 804 printf("(? ? ?)"); 805 break; 806 } 807 printf("\n"); 808 printf(" Interrupt line: 0x%02x\n", PCI_INTERRUPT_LINE(rval)); 809 } 810 811 static void 812 pci_conf_print_pcie_cap(const pcireg_t *regs, int capoff) 813 { 814 bool check_slot = false; 815 static const char * const linkspeeds[] = {"2.5", "5.0", "8.0"}; 816 817 printf("\n PCI Express Capabilities Register\n"); 818 printf(" Capability version: %x\n", 819 (unsigned int)((regs[o2i(capoff)] & 0x000f0000) >> 16)); 820 printf(" Device type: "); 821 switch ((regs[o2i(capoff)] & 0x00f00000) >> 20) { 822 case 0x0: 823 printf("PCI Express Endpoint device\n"); 824 break; 825 case 0x1: 826 printf("Legacy PCI Express Endpoint device\n"); 827 break; 828 case 0x4: 829 printf("Root Port of PCI Express Root Complex\n"); 830 check_slot = true; 831 break; 832 case 0x5: 833 printf("Upstream Port of PCI Express Switch\n"); 834 break; 835 case 0x6: 836 printf("Downstream Port of PCI Express Switch\n"); 837 check_slot = true; 838 break; 839 case 0x7: 840 printf("PCI Express to PCI/PCI-X Bridge\n"); 841 break; 842 case 0x8: 843 printf("PCI/PCI-X to PCI Express Bridge\n"); 844 break; 845 default: 846 printf("unknown\n"); 847 break; 848 } 849 if (check_slot && (regs[o2i(capoff)] & 0x01000000) != 0) 850 printf(" Slot implemented\n"); 851 printf(" Interrupt Message Number: %x\n", 852 (unsigned int)((regs[o2i(capoff)] & 0x4e000000) >> 27)); 853 printf(" Link Capabilities Register: 0x%08x\n", 854 regs[o2i(capoff + 0x0c)]); 855 printf(" Maximum Link Speed: "); 856 if ((regs[o2i(capoff + 0x0c)] & 0x000f) < 1 || 857 (regs[o2i(capoff + 0x0c)] & 0x000f) > 3) { 858 printf("unknown %u value\n", 859 (regs[o2i(capoff + 0x0c)] & 0x000f)); 860 } else { 861 printf("%sGb/s\n", linkspeeds[(regs[o2i(capoff + 0x0c)] & 0x000f) - 1]); 862 } 863 printf(" Maximum Link Width: x%u lanes\n", 864 (regs[o2i(capoff + 0x0c)] & 0x03f0) >> 4); 865 printf(" Port Number: %u\n", regs[o2i(capoff + 0x0c)] >> 24); 866 printf(" Link Status Register: 0x%04x\n", 867 regs[o2i(capoff + 0x10)] >> 16); 868 printf(" Negotiated Link Speed: "); 869 if (((regs[o2i(capoff + 0x10)] >> 16) & 0x000f) < 1 || 870 ((regs[o2i(capoff + 0x10)] >> 16) & 0x000f) > 3) { 871 printf("unknown %u value\n", 872 (regs[o2i(capoff + 0x10)] >> 16) & 0x000f); 873 } else { 874 printf("%sGb/s\n", linkspeeds[((regs[o2i(capoff + 0x10)] >> 16) & 0x000f) - 1]); 875 } 876 printf(" Negotiated Link Width: x%u lanes\n", 877 (regs[o2i(capoff + 0x10)] >> 20) & 0x003f); 878 if ((regs[o2i(capoff + 0x18)] & 0x07ff) != 0) { 879 printf(" Slot Control Register:\n"); 880 if ((regs[o2i(capoff + 0x18)] & 0x0001) != 0) 881 printf(" Attention Button Pressed Enabled\n"); 882 if ((regs[o2i(capoff + 0x18)] & 0x0002) != 0) 883 printf(" Power Fault Detected Enabled\n"); 884 if ((regs[o2i(capoff + 0x18)] & 0x0004) != 0) 885 printf(" MRL Sensor Changed Enabled\n"); 886 if ((regs[o2i(capoff + 0x18)] & 0x0008) != 0) 887 printf(" Presense Detected Changed Enabled\n"); 888 if ((regs[o2i(capoff + 0x18)] & 0x0010) != 0) 889 printf(" Command Completed Interrupt Enabled\n"); 890 if ((regs[o2i(capoff + 0x18)] & 0x0020) != 0) 891 printf(" Hot-Plug Interrupt Enabled\n"); 892 printf(" Attention Indicator Control: "); 893 switch ((regs[o2i(capoff + 0x18)] & 0x00c0) >> 6) { 894 case 0x0: 895 printf("reserved\n"); 896 break; 897 case 0x1: 898 printf("on\n"); 899 break; 900 case 0x2: 901 printf("blink\n"); 902 break; 903 case 0x3: 904 printf("off\n"); 905 break; 906 } 907 printf(" Power Indicator Control: "); 908 switch ((regs[o2i(capoff + 0x18)] & 0x0300) >> 8) { 909 case 0x0: 910 printf("reserved\n"); 911 break; 912 case 0x1: 913 printf("on\n"); 914 break; 915 case 0x2: 916 printf("blink\n"); 917 break; 918 case 0x3: 919 printf("off\n"); 920 break; 921 } 922 printf(" Power Controller Control: "); 923 if ((regs[o2i(capoff + 0x18)] & 0x0400) != 0) 924 printf("off\n"); 925 else 926 printf("on\n"); 927 } 928 } 929 930 static const char * 931 pci_conf_print_pcipm_cap_aux(uint16_t caps) 932 { 933 switch ((caps >> 6) & 7) { 934 case 0: return "self-powered"; 935 case 1: return "55 mA"; 936 case 2: return "100 mA"; 937 case 3: return "160 mA"; 938 case 4: return "220 mA"; 939 case 5: return "270 mA"; 940 case 6: return "320 mA"; 941 case 7: 942 default: return "375 mA"; 943 } 944 } 945 946 static const char * 947 pci_conf_print_pcipm_cap_pmrev(uint8_t val) 948 { 949 static const char unk[] = "unknown"; 950 static const char *pmrev[8] = { 951 unk, "1.0", "1.1", "1.2", unk, unk, unk, unk 952 }; 953 if (val > 7) 954 return unk; 955 return pmrev[val]; 956 } 957 958 static void 959 pci_conf_print_pcipm_cap(const pcireg_t *regs, int capoff) 960 { 961 uint16_t caps, pmcsr; 962 963 caps = regs[o2i(capoff)] >> 16; 964 pmcsr = regs[o2i(capoff + 0x04)] & 0xffff; 965 966 printf("\n PCI Power Management Capabilities Register\n"); 967 968 printf(" Capabilities register: 0x%04x\n", caps); 969 printf(" Version: %s\n", 970 pci_conf_print_pcipm_cap_pmrev(caps & 0x3)); 971 printf(" PME# clock: %s\n", caps & 0x4 ? "on" : "off"); 972 printf(" Device specific initialization: %s\n", 973 caps & 0x20 ? "on" : "off"); 974 printf(" 3.3V auxiliary current: %s\n", 975 pci_conf_print_pcipm_cap_aux(caps)); 976 printf(" D1 power management state support: %s\n", 977 (caps >> 9) & 1 ? "on" : "off"); 978 printf(" D2 power management state support: %s\n", 979 (caps >> 10) & 1 ? "on" : "off"); 980 printf(" PME# support: 0x%02x\n", caps >> 11); 981 982 printf(" Control/status register: 0x%04x\n", pmcsr); 983 printf(" Power state: D%d\n", pmcsr & 3); 984 printf(" PCI Express reserved: %s\n", 985 (pmcsr >> 2) & 1 ? "on" : "off"); 986 printf(" No soft reset: %s\n", (pmcsr >> 3) & 1 ? "on" : "off"); 987 printf(" PME# assertion %sabled\n", 988 (pmcsr >> 8) & 1 ? "en" : "dis"); 989 printf(" PME# status: %s\n", (pmcsr >> 15) ? "on" : "off"); 990 } 991 992 static void 993 pci_conf_print_msi_cap(const pcireg_t *regs, int capoff) 994 { 995 uint32_t ctl, mmc, mme; 996 997 regs += o2i(capoff); 998 ctl = *regs++; 999 mmc = __SHIFTOUT(ctl, PCI_MSI_CTL_MMC_MASK); 1000 mme = __SHIFTOUT(ctl, PCI_MSI_CTL_MME_MASK); 1001 1002 printf("\n PCI Message Signaled Interrupt\n"); 1003 1004 printf(" Message Control register: 0x%04x\n", ctl >> 16); 1005 printf(" MSI Enabled: %s\n", 1006 ctl & PCI_MSI_CTL_MSI_ENABLE ? "yes" : "no"); 1007 printf(" Multiple Message Capable: %s (%d vector%s)\n", 1008 mmc > 0 ? "yes" : "no", 1 << mmc, mmc > 0 ? "s" : ""); 1009 printf(" Multiple Message Enabled: %s (%d vector%s)\n", 1010 mme > 0 ? "on" : "off", 1 << mme, mme > 0 ? "s" : ""); 1011 printf(" 64 Bit Address Capable: %s\n", 1012 ctl & PCI_MSI_CTL_64BIT_ADDR ? "yes" : "no"); 1013 printf(" Per-Vector Masking Capable: %s\n", 1014 ctl & PCI_MSI_CTL_PERVEC_MASK ? "yes" : "no"); 1015 printf(" Message Address %sregister: 0x%08x\n", 1016 ctl & PCI_MSI_CTL_64BIT_ADDR ? "(lower) " : "", *regs++); 1017 if (ctl & PCI_MSI_CTL_64BIT_ADDR) { 1018 printf(" Message Address %sregister: 0x%08x\n", 1019 "(upper) ", *regs++); 1020 } 1021 printf(" Message Data register: 0x%08x\n", *regs++); 1022 if (ctl & PCI_MSI_CTL_PERVEC_MASK) { 1023 printf(" Vector Mask register: 0x%08x\n", *regs++); 1024 printf(" Vector Pending register: 0x%08x\n", *regs++); 1025 } 1026 } 1027 static void 1028 pci_conf_print_caplist( 1029 #ifdef _KERNEL 1030 pci_chipset_tag_t pc, pcitag_t tag, 1031 #endif 1032 const pcireg_t *regs, int capoff) 1033 { 1034 int off; 1035 pcireg_t rval; 1036 int pcie_off = -1, pcipm_off = -1, msi_off = -1; 1037 1038 for (off = PCI_CAPLIST_PTR(regs[o2i(capoff)]); 1039 off != 0; 1040 off = PCI_CAPLIST_NEXT(regs[o2i(off)])) { 1041 rval = regs[o2i(off)]; 1042 printf(" Capability register at 0x%02x\n", off); 1043 1044 printf(" type: 0x%02x (", PCI_CAPLIST_CAP(rval)); 1045 switch (PCI_CAPLIST_CAP(rval)) { 1046 case PCI_CAP_RESERVED0: 1047 printf("reserved"); 1048 break; 1049 case PCI_CAP_PWRMGMT: 1050 printf("Power Management, rev. %s", 1051 pci_conf_print_pcipm_cap_pmrev((rval >> 0) & 0x07)); 1052 pcipm_off = off; 1053 break; 1054 case PCI_CAP_AGP: 1055 printf("AGP, rev. %d.%d", 1056 PCI_CAP_AGP_MAJOR(rval), 1057 PCI_CAP_AGP_MINOR(rval)); 1058 break; 1059 case PCI_CAP_VPD: 1060 printf("VPD"); 1061 break; 1062 case PCI_CAP_SLOTID: 1063 printf("SlotID"); 1064 break; 1065 case PCI_CAP_MSI: 1066 printf("MSI"); 1067 msi_off = off; 1068 break; 1069 case PCI_CAP_CPCI_HOTSWAP: 1070 printf("CompactPCI Hot-swapping"); 1071 break; 1072 case PCI_CAP_PCIX: 1073 printf("PCI-X"); 1074 break; 1075 case PCI_CAP_LDT: 1076 printf("LDT"); 1077 break; 1078 case PCI_CAP_VENDSPEC: 1079 printf("Vendor-specific"); 1080 break; 1081 case PCI_CAP_DEBUGPORT: 1082 printf("Debug Port"); 1083 break; 1084 case PCI_CAP_CPCI_RSRCCTL: 1085 printf("CompactPCI Resource Control"); 1086 break; 1087 case PCI_CAP_HOTPLUG: 1088 printf("Hot-Plug"); 1089 break; 1090 case PCI_CAP_AGP8: 1091 printf("AGP 8x"); 1092 break; 1093 case PCI_CAP_SECURE: 1094 printf("Secure Device"); 1095 break; 1096 case PCI_CAP_PCIEXPRESS: 1097 printf("PCI Express"); 1098 pcie_off = off; 1099 break; 1100 case PCI_CAP_MSIX: 1101 printf("MSI-X"); 1102 break; 1103 case PCI_CAP_SATA: 1104 printf("SATA"); 1105 break; 1106 case PCI_CAP_PCIAF: 1107 printf("Advanced Features"); 1108 break; 1109 default: 1110 printf("unknown"); 1111 } 1112 printf(")\n"); 1113 } 1114 if (msi_off != -1) 1115 pci_conf_print_msi_cap(regs, msi_off); 1116 if (pcipm_off != -1) 1117 pci_conf_print_pcipm_cap(regs, pcipm_off); 1118 if (pcie_off != -1) 1119 pci_conf_print_pcie_cap(regs, pcie_off); 1120 } 1121 1122 /* Print the Secondary Status Register. */ 1123 static void 1124 pci_conf_print_ssr(pcireg_t rval) 1125 { 1126 pcireg_t devsel; 1127 1128 printf(" Secondary status register: 0x%04x\n", rval); /* XXX bits */ 1129 onoff("66 MHz capable", __BIT(5)); 1130 onoff("User Definable Features (UDF) support", __BIT(6)); 1131 onoff("Fast back-to-back capable", __BIT(7)); 1132 onoff("Data parity error detected", __BIT(8)); 1133 1134 printf(" DEVSEL timing: "); 1135 devsel = __SHIFTOUT(rval, __BITS(10, 9)); 1136 switch (devsel) { 1137 case 0: 1138 printf("fast"); 1139 break; 1140 case 1: 1141 printf("medium"); 1142 break; 1143 case 2: 1144 printf("slow"); 1145 break; 1146 default: 1147 printf("unknown/reserved"); /* XXX */ 1148 break; 1149 } 1150 printf(" (0x%x)\n", devsel); 1151 1152 onoff("Signalled target abort", __BIT(11)); 1153 onoff("Received target abort", __BIT(12)); 1154 onoff("Received master abort", __BIT(13)); 1155 onoff("Received system error", __BIT(14)); 1156 onoff("Detected parity error", __BIT(15)); 1157 } 1158 1159 static void 1160 pci_conf_print_type1( 1161 #ifdef _KERNEL 1162 pci_chipset_tag_t pc, pcitag_t tag, 1163 #endif 1164 const pcireg_t *regs 1165 #ifdef _KERNEL 1166 , int sizebars 1167 #endif 1168 ) 1169 { 1170 int off, width; 1171 pcireg_t rval; 1172 1173 /* 1174 * XXX these need to be printed in more detail, need to be 1175 * XXX checked against specs/docs, etc. 1176 * 1177 * This layout was cribbed from the TI PCI2030 PCI-to-PCI 1178 * Bridge chip documentation, and may not be correct with 1179 * respect to various standards. (XXX) 1180 */ 1181 1182 for (off = 0x10; off < 0x18; off += width) { 1183 #ifdef _KERNEL 1184 width = pci_conf_print_bar(pc, tag, regs, off, NULL, sizebars); 1185 #else 1186 width = pci_conf_print_bar(regs, off, NULL); 1187 #endif 1188 } 1189 1190 printf(" Primary bus number: 0x%02x\n", 1191 (regs[o2i(0x18)] >> 0) & 0xff); 1192 printf(" Secondary bus number: 0x%02x\n", 1193 (regs[o2i(0x18)] >> 8) & 0xff); 1194 printf(" Subordinate bus number: 0x%02x\n", 1195 (regs[o2i(0x18)] >> 16) & 0xff); 1196 printf(" Secondary bus latency timer: 0x%02x\n", 1197 (regs[o2i(0x18)] >> 24) & 0xff); 1198 1199 pci_conf_print_ssr(__SHIFTOUT(regs[o2i(0x1c)], __BITS(31, 16))); 1200 1201 /* XXX Print more prettily */ 1202 printf(" I/O region:\n"); 1203 printf(" base register: 0x%02x\n", (regs[o2i(0x1c)] >> 0) & 0xff); 1204 printf(" limit register: 0x%02x\n", (regs[o2i(0x1c)] >> 8) & 0xff); 1205 printf(" base upper 16 bits register: 0x%04x\n", 1206 (regs[o2i(0x30)] >> 0) & 0xffff); 1207 printf(" limit upper 16 bits register: 0x%04x\n", 1208 (regs[o2i(0x30)] >> 16) & 0xffff); 1209 1210 /* XXX Print more prettily */ 1211 printf(" Memory region:\n"); 1212 printf(" base register: 0x%04x\n", 1213 (regs[o2i(0x20)] >> 0) & 0xffff); 1214 printf(" limit register: 0x%04x\n", 1215 (regs[o2i(0x20)] >> 16) & 0xffff); 1216 1217 /* XXX Print more prettily */ 1218 printf(" Prefetchable memory region:\n"); 1219 printf(" base register: 0x%04x\n", 1220 (regs[o2i(0x24)] >> 0) & 0xffff); 1221 printf(" limit register: 0x%04x\n", 1222 (regs[o2i(0x24)] >> 16) & 0xffff); 1223 printf(" base upper 32 bits register: 0x%08x\n", regs[o2i(0x28)]); 1224 printf(" limit upper 32 bits register: 0x%08x\n", regs[o2i(0x2c)]); 1225 1226 if (regs[o2i(PCI_COMMAND_STATUS_REG)] & PCI_STATUS_CAPLIST_SUPPORT) 1227 printf(" Capability list pointer: 0x%02x\n", 1228 PCI_CAPLIST_PTR(regs[o2i(PCI_CAPLISTPTR_REG)])); 1229 else 1230 printf(" Reserved @ 0x34: 0x%08x\n", regs[o2i(0x34)]); 1231 1232 /* XXX */ 1233 printf(" Expansion ROM Base Address: 0x%08x\n", regs[o2i(0x38)]); 1234 1235 printf(" Interrupt line: 0x%02x\n", 1236 (regs[o2i(0x3c)] >> 0) & 0xff); 1237 printf(" Interrupt pin: 0x%02x ", 1238 (regs[o2i(0x3c)] >> 8) & 0xff); 1239 switch ((regs[o2i(0x3c)] >> 8) & 0xff) { 1240 case PCI_INTERRUPT_PIN_NONE: 1241 printf("(none)"); 1242 break; 1243 case PCI_INTERRUPT_PIN_A: 1244 printf("(pin A)"); 1245 break; 1246 case PCI_INTERRUPT_PIN_B: 1247 printf("(pin B)"); 1248 break; 1249 case PCI_INTERRUPT_PIN_C: 1250 printf("(pin C)"); 1251 break; 1252 case PCI_INTERRUPT_PIN_D: 1253 printf("(pin D)"); 1254 break; 1255 default: 1256 printf("(? ? ?)"); 1257 break; 1258 } 1259 printf("\n"); 1260 rval = (regs[o2i(0x3c)] >> 16) & 0xffff; 1261 printf(" Bridge control register: 0x%04x\n", rval); /* XXX bits */ 1262 onoff("Parity error response", 0x0001); 1263 onoff("Secondary SERR forwarding", 0x0002); 1264 onoff("ISA enable", 0x0004); 1265 onoff("VGA enable", 0x0008); 1266 onoff("Master abort reporting", 0x0020); 1267 onoff("Secondary bus reset", 0x0040); 1268 onoff("Fast back-to-back capable", 0x0080); 1269 } 1270 1271 static void 1272 pci_conf_print_type2( 1273 #ifdef _KERNEL 1274 pci_chipset_tag_t pc, pcitag_t tag, 1275 #endif 1276 const pcireg_t *regs 1277 #ifdef _KERNEL 1278 , int sizebars 1279 #endif 1280 ) 1281 { 1282 pcireg_t rval; 1283 1284 /* 1285 * XXX these need to be printed in more detail, need to be 1286 * XXX checked against specs/docs, etc. 1287 * 1288 * This layout was cribbed from the TI PCI1420 PCI-to-CardBus 1289 * controller chip documentation, and may not be correct with 1290 * respect to various standards. (XXX) 1291 */ 1292 1293 #ifdef _KERNEL 1294 pci_conf_print_bar(pc, tag, regs, 0x10, 1295 "CardBus socket/ExCA registers", sizebars); 1296 #else 1297 pci_conf_print_bar(regs, 0x10, "CardBus socket/ExCA registers"); 1298 #endif 1299 1300 if (regs[o2i(PCI_COMMAND_STATUS_REG)] & PCI_STATUS_CAPLIST_SUPPORT) 1301 printf(" Capability list pointer: 0x%02x\n", 1302 PCI_CAPLIST_PTR(regs[o2i(PCI_CARDBUS_CAPLISTPTR_REG)])); 1303 else 1304 printf(" Reserved @ 0x14: 0x%04" PRIxMAX "\n", 1305 __SHIFTOUT(regs[o2i(0x14)], __BITS(15, 0))); 1306 pci_conf_print_ssr(__SHIFTOUT(regs[o2i(0x14)], __BITS(31, 16))); 1307 1308 printf(" PCI bus number: 0x%02x\n", 1309 (regs[o2i(0x18)] >> 0) & 0xff); 1310 printf(" CardBus bus number: 0x%02x\n", 1311 (regs[o2i(0x18)] >> 8) & 0xff); 1312 printf(" Subordinate bus number: 0x%02x\n", 1313 (regs[o2i(0x18)] >> 16) & 0xff); 1314 printf(" CardBus latency timer: 0x%02x\n", 1315 (regs[o2i(0x18)] >> 24) & 0xff); 1316 1317 /* XXX Print more prettily */ 1318 printf(" CardBus memory region 0:\n"); 1319 printf(" base register: 0x%08x\n", regs[o2i(0x1c)]); 1320 printf(" limit register: 0x%08x\n", regs[o2i(0x20)]); 1321 printf(" CardBus memory region 1:\n"); 1322 printf(" base register: 0x%08x\n", regs[o2i(0x24)]); 1323 printf(" limit register: 0x%08x\n", regs[o2i(0x28)]); 1324 printf(" CardBus I/O region 0:\n"); 1325 printf(" base register: 0x%08x\n", regs[o2i(0x2c)]); 1326 printf(" limit register: 0x%08x\n", regs[o2i(0x30)]); 1327 printf(" CardBus I/O region 1:\n"); 1328 printf(" base register: 0x%08x\n", regs[o2i(0x34)]); 1329 printf(" limit register: 0x%08x\n", regs[o2i(0x38)]); 1330 1331 printf(" Interrupt line: 0x%02x\n", 1332 (regs[o2i(0x3c)] >> 0) & 0xff); 1333 printf(" Interrupt pin: 0x%02x ", 1334 (regs[o2i(0x3c)] >> 8) & 0xff); 1335 switch ((regs[o2i(0x3c)] >> 8) & 0xff) { 1336 case PCI_INTERRUPT_PIN_NONE: 1337 printf("(none)"); 1338 break; 1339 case PCI_INTERRUPT_PIN_A: 1340 printf("(pin A)"); 1341 break; 1342 case PCI_INTERRUPT_PIN_B: 1343 printf("(pin B)"); 1344 break; 1345 case PCI_INTERRUPT_PIN_C: 1346 printf("(pin C)"); 1347 break; 1348 case PCI_INTERRUPT_PIN_D: 1349 printf("(pin D)"); 1350 break; 1351 default: 1352 printf("(? ? ?)"); 1353 break; 1354 } 1355 printf("\n"); 1356 rval = (regs[o2i(0x3c)] >> 16) & 0xffff; 1357 printf(" Bridge control register: 0x%04x\n", rval); 1358 onoff("Parity error response", __BIT(0)); 1359 onoff("SERR# enable", __BIT(1)); 1360 onoff("ISA enable", __BIT(2)); 1361 onoff("VGA enable", __BIT(3)); 1362 onoff("Master abort mode", __BIT(5)); 1363 onoff("Secondary (CardBus) bus reset", __BIT(6)); 1364 onoff("Functional interrupts routed by ExCA registers", __BIT(7)); 1365 onoff("Memory window 0 prefetchable", __BIT(8)); 1366 onoff("Memory window 1 prefetchable", __BIT(9)); 1367 onoff("Write posting enable", __BIT(10)); 1368 1369 rval = regs[o2i(0x40)]; 1370 printf(" Subsystem vendor ID: 0x%04x\n", PCI_VENDOR(rval)); 1371 printf(" Subsystem ID: 0x%04x\n", PCI_PRODUCT(rval)); 1372 1373 #ifdef _KERNEL 1374 pci_conf_print_bar(pc, tag, regs, 0x44, "legacy-mode registers", 1375 sizebars); 1376 #else 1377 pci_conf_print_bar(regs, 0x44, "legacy-mode registers"); 1378 #endif 1379 } 1380 1381 void 1382 pci_conf_print( 1383 #ifdef _KERNEL 1384 pci_chipset_tag_t pc, pcitag_t tag, 1385 void (*printfn)(pci_chipset_tag_t, pcitag_t, const pcireg_t *) 1386 #else 1387 int pcifd, u_int bus, u_int dev, u_int func 1388 #endif 1389 ) 1390 { 1391 pcireg_t regs[o2i(256)]; 1392 int off, capoff, endoff, hdrtype; 1393 const char *typename; 1394 #ifdef _KERNEL 1395 void (*typeprintfn)(pci_chipset_tag_t, pcitag_t, const pcireg_t *, int); 1396 int sizebars; 1397 #else 1398 void (*typeprintfn)(const pcireg_t *); 1399 #endif 1400 1401 printf("PCI configuration registers:\n"); 1402 1403 for (off = 0; off < 256; off += 4) { 1404 #ifdef _KERNEL 1405 regs[o2i(off)] = pci_conf_read(pc, tag, off); 1406 #else 1407 if (pcibus_conf_read(pcifd, bus, dev, func, off, 1408 ®s[o2i(off)]) == -1) 1409 regs[o2i(off)] = 0; 1410 #endif 1411 } 1412 1413 #ifdef _KERNEL 1414 sizebars = 1; 1415 if (PCI_CLASS(regs[o2i(PCI_CLASS_REG)]) == PCI_CLASS_BRIDGE && 1416 PCI_SUBCLASS(regs[o2i(PCI_CLASS_REG)]) == PCI_SUBCLASS_BRIDGE_HOST) 1417 sizebars = 0; 1418 #endif 1419 1420 /* common header */ 1421 printf(" Common header:\n"); 1422 pci_conf_print_regs(regs, 0, 16); 1423 1424 printf("\n"); 1425 #ifdef _KERNEL 1426 pci_conf_print_common(pc, tag, regs); 1427 #else 1428 pci_conf_print_common(regs); 1429 #endif 1430 printf("\n"); 1431 1432 /* type-dependent header */ 1433 hdrtype = PCI_HDRTYPE_TYPE(regs[o2i(PCI_BHLC_REG)]); 1434 switch (hdrtype) { /* XXX make a table, eventually */ 1435 case 0: 1436 /* Standard device header */ 1437 typename = "\"normal\" device"; 1438 typeprintfn = &pci_conf_print_type0; 1439 capoff = PCI_CAPLISTPTR_REG; 1440 endoff = 64; 1441 break; 1442 case 1: 1443 /* PCI-PCI bridge header */ 1444 typename = "PCI-PCI bridge"; 1445 typeprintfn = &pci_conf_print_type1; 1446 capoff = PCI_CAPLISTPTR_REG; 1447 endoff = 64; 1448 break; 1449 case 2: 1450 /* PCI-CardBus bridge header */ 1451 typename = "PCI-CardBus bridge"; 1452 typeprintfn = &pci_conf_print_type2; 1453 capoff = PCI_CARDBUS_CAPLISTPTR_REG; 1454 endoff = 72; 1455 break; 1456 default: 1457 typename = NULL; 1458 typeprintfn = 0; 1459 capoff = -1; 1460 endoff = 64; 1461 break; 1462 } 1463 printf(" Type %d ", hdrtype); 1464 if (typename != NULL) 1465 printf("(%s) ", typename); 1466 printf("header:\n"); 1467 pci_conf_print_regs(regs, 16, endoff); 1468 printf("\n"); 1469 if (typeprintfn) { 1470 #ifdef _KERNEL 1471 (*typeprintfn)(pc, tag, regs, sizebars); 1472 #else 1473 (*typeprintfn)(regs); 1474 #endif 1475 } else 1476 printf(" Don't know how to pretty-print type %d header.\n", 1477 hdrtype); 1478 printf("\n"); 1479 1480 /* capability list, if present */ 1481 if ((regs[o2i(PCI_COMMAND_STATUS_REG)] & PCI_STATUS_CAPLIST_SUPPORT) 1482 && (capoff > 0)) { 1483 #ifdef _KERNEL 1484 pci_conf_print_caplist(pc, tag, regs, capoff); 1485 #else 1486 pci_conf_print_caplist(regs, capoff); 1487 #endif 1488 printf("\n"); 1489 } 1490 1491 /* device-dependent header */ 1492 printf(" Device-dependent header:\n"); 1493 pci_conf_print_regs(regs, endoff, 256); 1494 printf("\n"); 1495 #ifdef _KERNEL 1496 if (printfn) 1497 (*printfn)(pc, tag, regs); 1498 else 1499 printf(" Don't know how to pretty-print device-dependent header.\n"); 1500 printf("\n"); 1501 #endif /* _KERNEL */ 1502 } 1503
Indexes created Wed Sep 24 05:09:52 GMT 2025