1 /*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2000 BSDi 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include "opt_acpi.h" 32 #include <sys/param.h> 33 #include <sys/kernel.h> 34 #include <sys/bus.h> 35 #include <sys/limits.h> 36 #include <sys/malloc.h> 37 #include <sys/module.h> 38 39 #include <machine/bus.h> 40 #include <machine/resource.h> 41 #include <sys/rman.h> 42 43 #include <contrib/dev/acpica/include/acpi.h> 44 #include <contrib/dev/acpica/include/accommon.h> 45 46 #include <dev/acpica/acpivar.h> 47 48 #ifdef INTRNG 49 #include "acpi_bus_if.h" 50 #endif 51 52 /* Hooks for the ACPI CA debugging infrastructure */ 53 #define _COMPONENT ACPI_BUS 54 ACPI_MODULE_NAME("RESOURCE") 55 56 struct lookup_irq_request { 57 ACPI_RESOURCE *acpi_res; 58 u_int irq; 59 int counter; 60 int rid; 61 int found; 62 int checkrid; 63 int trig; 64 int pol; 65 }; 66 67 static ACPI_STATUS 68 acpi_lookup_irq_handler(ACPI_RESOURCE *res, void *context) 69 { 70 struct lookup_irq_request *req; 71 size_t len; 72 u_int irqnum, irq, trig, pol; 73 74 switch (res->Type) { 75 case ACPI_RESOURCE_TYPE_IRQ: 76 irqnum = res->Data.Irq.InterruptCount; 77 irq = res->Data.Irq.Interrupts[0]; 78 len = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 79 trig = res->Data.Irq.Triggering; 80 pol = res->Data.Irq.Polarity; 81 break; 82 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 83 irqnum = res->Data.ExtendedIrq.InterruptCount; 84 irq = res->Data.ExtendedIrq.Interrupts[0]; 85 len = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 86 trig = res->Data.ExtendedIrq.Triggering; 87 pol = res->Data.ExtendedIrq.Polarity; 88 break; 89 default: 90 return (AE_OK); 91 } 92 if (irqnum != 1) 93 return (AE_OK); 94 req = (struct lookup_irq_request *)context; 95 if (req->checkrid) { 96 if (req->counter != req->rid) { 97 req->counter++; 98 return (AE_OK); 99 } 100 KASSERT(irq == req->irq, ("IRQ resources do not match")); 101 } else { 102 if (req->irq != irq) 103 return (AE_OK); 104 } 105 req->found = 1; 106 req->pol = pol; 107 req->trig = trig; 108 if (req->acpi_res != NULL) 109 bcopy(res, req->acpi_res, len); 110 return (AE_CTRL_TERMINATE); 111 } 112 113 ACPI_STATUS 114 acpi_lookup_irq_resource(device_t dev, int rid, struct resource *res, 115 ACPI_RESOURCE *acpi_res) 116 { 117 struct lookup_irq_request req; 118 ACPI_STATUS status; 119 120 req.acpi_res = acpi_res; 121 req.irq = rman_get_start(res); 122 req.counter = 0; 123 req.rid = rid; 124 req.found = 0; 125 req.checkrid = 1; 126 status = AcpiWalkResources(acpi_get_handle(dev), "_CRS", 127 acpi_lookup_irq_handler, &req); 128 if (ACPI_SUCCESS(status) && req.found == 0) 129 status = AE_NOT_FOUND; 130 return (status); 131 } 132 133 void 134 acpi_config_intr(device_t dev, ACPI_RESOURCE *res) 135 { 136 u_int irq; 137 int pol, trig; 138 139 switch (res->Type) { 140 case ACPI_RESOURCE_TYPE_IRQ: 141 KASSERT(res->Data.Irq.InterruptCount == 1, 142 ("%s: multiple interrupts", __func__)); 143 irq = res->Data.Irq.Interrupts[0]; 144 trig = res->Data.Irq.Triggering; 145 pol = res->Data.Irq.Polarity; 146 break; 147 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 148 KASSERT(res->Data.ExtendedIrq.InterruptCount == 1, 149 ("%s: multiple interrupts", __func__)); 150 irq = res->Data.ExtendedIrq.Interrupts[0]; 151 trig = res->Data.ExtendedIrq.Triggering; 152 pol = res->Data.ExtendedIrq.Polarity; 153 break; 154 default: 155 panic("%s: bad resource type %u", __func__, res->Type); 156 } 157 158 #if defined(__amd64__) || defined(__i386__) 159 /* 160 * XXX: Certain BIOSes have buggy AML that specify an IRQ that is 161 * edge-sensitive and active-lo. However, edge-sensitive IRQs 162 * should be active-hi. Force IRQs with an ISA IRQ value to be 163 * active-hi instead. 164 */ 165 if (irq < 16 && trig == ACPI_EDGE_SENSITIVE && pol == ACPI_ACTIVE_LOW) 166 pol = ACPI_ACTIVE_HIGH; 167 #endif 168 BUS_CONFIG_INTR(dev, irq, (trig == ACPI_EDGE_SENSITIVE) ? 169 INTR_TRIGGER_EDGE : INTR_TRIGGER_LEVEL, (pol == ACPI_ACTIVE_HIGH) ? 170 INTR_POLARITY_HIGH : INTR_POLARITY_LOW); 171 } 172 173 #ifdef INTRNG 174 int 175 acpi_map_intr(device_t dev, u_int irq, ACPI_HANDLE handle) 176 { 177 struct lookup_irq_request req; 178 int trig, pol; 179 180 trig = ACPI_LEVEL_SENSITIVE; 181 pol = ACPI_ACTIVE_HIGH; 182 if (handle != NULL) { 183 req.found = 0; 184 req.acpi_res = NULL; 185 req.irq = irq; 186 req.counter = 0; 187 req.rid = 0; 188 req.checkrid = 0; 189 AcpiWalkResources(handle, "_CRS", acpi_lookup_irq_handler, &req); 190 if (req.found != 0) { 191 trig = req.trig; 192 pol = req.pol; 193 } 194 } 195 return ACPI_BUS_MAP_INTR(device_get_parent(dev), dev, irq, 196 (trig == ACPI_EDGE_SENSITIVE) ? INTR_TRIGGER_EDGE : INTR_TRIGGER_LEVEL, 197 (pol == ACPI_ACTIVE_HIGH) ? INTR_POLARITY_HIGH : INTR_POLARITY_LOW); 198 } 199 #endif 200 201 struct acpi_resource_context { 202 struct acpi_parse_resource_set *set; 203 device_t dev; 204 void *context; 205 bool ignore_producer_flag; 206 }; 207 208 #ifdef ACPI_DEBUG_OUTPUT 209 static const char * 210 acpi_address_range_name(UINT8 ResourceType) 211 { 212 static char buf[16]; 213 214 switch (ResourceType) { 215 case ACPI_MEMORY_RANGE: 216 return ("Memory"); 217 case ACPI_IO_RANGE: 218 return ("IO"); 219 case ACPI_BUS_NUMBER_RANGE: 220 return ("Bus Number"); 221 default: 222 snprintf(buf, sizeof(buf), "type %u", ResourceType); 223 return (buf); 224 } 225 } 226 #endif 227 228 static ACPI_STATUS 229 acpi_parse_resource(ACPI_RESOURCE *res, void *context) 230 { 231 struct acpi_parse_resource_set *set; 232 struct acpi_resource_context *arc; 233 UINT64 min, max, length, gran; 234 #ifdef ACPI_DEBUG 235 const char *name; 236 #endif 237 device_t dev; 238 239 arc = context; 240 dev = arc->dev; 241 set = arc->set; 242 243 switch (res->Type) { 244 case ACPI_RESOURCE_TYPE_END_TAG: 245 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "EndTag\n")); 246 break; 247 case ACPI_RESOURCE_TYPE_FIXED_IO: 248 if (res->Data.FixedIo.AddressLength <= 0) 249 break; 250 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "FixedIo 0x%x/%d\n", 251 res->Data.FixedIo.Address, res->Data.FixedIo.AddressLength)); 252 set->set_ioport(dev, arc->context, res->Data.FixedIo.Address, 253 res->Data.FixedIo.AddressLength); 254 break; 255 case ACPI_RESOURCE_TYPE_IO: 256 if (res->Data.Io.AddressLength <= 0) 257 break; 258 if (res->Data.Io.Minimum == res->Data.Io.Maximum) { 259 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Io 0x%x/%d\n", 260 res->Data.Io.Minimum, res->Data.Io.AddressLength)); 261 set->set_ioport(dev, arc->context, res->Data.Io.Minimum, 262 res->Data.Io.AddressLength); 263 } else { 264 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Io 0x%x-0x%x/%d\n", 265 res->Data.Io.Minimum, res->Data.Io.Maximum, 266 res->Data.Io.AddressLength)); 267 set->set_iorange(dev, arc->context, res->Data.Io.Minimum, 268 res->Data.Io.Maximum, res->Data.Io.AddressLength, 269 res->Data.Io.Alignment); 270 } 271 break; 272 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: 273 if (res->Data.FixedMemory32.AddressLength <= 0) 274 break; 275 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "FixedMemory32 0x%x/%d\n", 276 res->Data.FixedMemory32.Address, 277 res->Data.FixedMemory32.AddressLength)); 278 set->set_memory(dev, arc->context, res->Data.FixedMemory32.Address, 279 res->Data.FixedMemory32.AddressLength); 280 break; 281 case ACPI_RESOURCE_TYPE_MEMORY32: 282 if (res->Data.Memory32.AddressLength <= 0) 283 break; 284 if (res->Data.Memory32.Minimum == res->Data.Memory32.Maximum) { 285 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Memory32 0x%x/%d\n", 286 res->Data.Memory32.Minimum, res->Data.Memory32.AddressLength)); 287 set->set_memory(dev, arc->context, res->Data.Memory32.Minimum, 288 res->Data.Memory32.AddressLength); 289 } else { 290 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Memory32 0x%x-0x%x/%d\n", 291 res->Data.Memory32.Minimum, res->Data.Memory32.Maximum, 292 res->Data.Memory32.AddressLength)); 293 set->set_memoryrange(dev, arc->context, res->Data.Memory32.Minimum, 294 res->Data.Memory32.Maximum, res->Data.Memory32.AddressLength, 295 res->Data.Memory32.Alignment); 296 } 297 break; 298 case ACPI_RESOURCE_TYPE_MEMORY24: 299 if (res->Data.Memory24.AddressLength <= 0) 300 break; 301 if (res->Data.Memory24.Minimum == res->Data.Memory24.Maximum) { 302 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Memory24 0x%x/%d\n", 303 res->Data.Memory24.Minimum, res->Data.Memory24.AddressLength)); 304 set->set_memory(dev, arc->context, res->Data.Memory24.Minimum, 305 res->Data.Memory24.AddressLength); 306 } else { 307 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "Memory24 0x%x-0x%x/%d\n", 308 res->Data.Memory24.Minimum, res->Data.Memory24.Maximum, 309 res->Data.Memory24.AddressLength)); 310 set->set_memoryrange(dev, arc->context, res->Data.Memory24.Minimum, 311 res->Data.Memory24.Maximum, res->Data.Memory24.AddressLength, 312 res->Data.Memory24.Alignment); 313 } 314 break; 315 case ACPI_RESOURCE_TYPE_IRQ: 316 /* 317 * from 1.0b 6.4.2 318 * "This structure is repeated for each separate interrupt 319 * required" 320 */ 321 set->set_irq(dev, arc->context, res->Data.Irq.Interrupts, 322 res->Data.Irq.InterruptCount, res->Data.Irq.Triggering, 323 res->Data.Irq.Polarity); 324 break; 325 case ACPI_RESOURCE_TYPE_DMA: 326 /* 327 * from 1.0b 6.4.3 328 * "This structure is repeated for each separate DMA channel 329 * required" 330 */ 331 set->set_drq(dev, arc->context, res->Data.Dma.Channels, 332 res->Data.Dma.ChannelCount); 333 break; 334 case ACPI_RESOURCE_TYPE_START_DEPENDENT: 335 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "start dependent functions\n")); 336 set->set_start_dependent(dev, arc->context, 337 res->Data.StartDpf.CompatibilityPriority); 338 break; 339 case ACPI_RESOURCE_TYPE_END_DEPENDENT: 340 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "end dependent functions\n")); 341 set->set_end_dependent(dev, arc->context); 342 break; 343 case ACPI_RESOURCE_TYPE_ADDRESS16: 344 case ACPI_RESOURCE_TYPE_ADDRESS32: 345 case ACPI_RESOURCE_TYPE_ADDRESS64: 346 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64: 347 switch (res->Type) { 348 case ACPI_RESOURCE_TYPE_ADDRESS16: 349 gran = res->Data.Address16.Address.Granularity; 350 min = res->Data.Address16.Address.Minimum; 351 max = res->Data.Address16.Address.Maximum; 352 length = res->Data.Address16.Address.AddressLength; 353 #ifdef ACPI_DEBUG 354 name = "Address16"; 355 #endif 356 break; 357 case ACPI_RESOURCE_TYPE_ADDRESS32: 358 gran = res->Data.Address32.Address.Granularity; 359 min = res->Data.Address32.Address.Minimum; 360 max = res->Data.Address32.Address.Maximum; 361 length = res->Data.Address32.Address.AddressLength; 362 #ifdef ACPI_DEBUG 363 name = "Address32"; 364 #endif 365 break; 366 case ACPI_RESOURCE_TYPE_ADDRESS64: 367 gran = res->Data.Address64.Address.Granularity; 368 min = res->Data.Address64.Address.Minimum; 369 max = res->Data.Address64.Address.Maximum; 370 length = res->Data.Address64.Address.AddressLength; 371 #ifdef ACPI_DEBUG 372 name = "Address64"; 373 #endif 374 break; 375 default: 376 KASSERT(res->Type == ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64, 377 ("should never happen")); 378 gran = res->Data.ExtAddress64.Address.Granularity; 379 min = res->Data.ExtAddress64.Address.Minimum; 380 max = res->Data.ExtAddress64.Address.Maximum; 381 length = res->Data.ExtAddress64.Address.AddressLength; 382 #ifdef ACPI_DEBUG 383 name = "ExtAddress64"; 384 #endif 385 break; 386 } 387 if (length <= 0) 388 break; 389 if (!arc->ignore_producer_flag && 390 res->Data.Address.ProducerConsumer != ACPI_CONSUMER) { 391 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, 392 "ignored %s %s producer\n", name, 393 acpi_address_range_name(res->Data.Address.ResourceType))); 394 break; 395 } 396 if (res->Data.Address.ResourceType != ACPI_MEMORY_RANGE && 397 res->Data.Address.ResourceType != ACPI_IO_RANGE) { 398 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, 399 "ignored %s for non-memory, non-I/O\n", name)); 400 break; 401 } 402 403 #ifdef __i386__ 404 if (min > ULONG_MAX || (res->Data.Address.MaxAddressFixed && max > 405 ULONG_MAX)) { 406 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "ignored %s above 4G\n", 407 name)); 408 break; 409 } 410 if (max > ULONG_MAX) 411 max = ULONG_MAX; 412 #endif 413 if (res->Data.Address.MinAddressFixed == ACPI_ADDRESS_FIXED && 414 res->Data.Address.MaxAddressFixed == ACPI_ADDRESS_FIXED) { 415 if (res->Data.Address.ResourceType == ACPI_MEMORY_RANGE) { 416 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "%s/Memory 0x%jx/%ju\n", 417 name, (uintmax_t)min, (uintmax_t)length)); 418 set->set_memory(dev, arc->context, min, length); 419 } else { 420 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "%s/IO 0x%jx/%ju\n", name, 421 (uintmax_t)min, (uintmax_t)length)); 422 set->set_ioport(dev, arc->context, min, length); 423 } 424 } else { 425 if (res->Data.Address32.ResourceType == ACPI_MEMORY_RANGE) { 426 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, 427 "%s/Memory 0x%jx-0x%jx/%ju\n", name, (uintmax_t)min, 428 (uintmax_t)max, (uintmax_t)length)); 429 set->set_memoryrange(dev, arc->context, min, max, length, gran); 430 } else { 431 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "%s/IO 0x%jx-0x%jx/%ju\n", 432 name, (uintmax_t)min, (uintmax_t)max, (uintmax_t)length)); 433 set->set_iorange(dev, arc->context, min, max, length, gran); 434 } 435 } 436 break; 437 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 438 if (res->Data.ExtendedIrq.ProducerConsumer != ACPI_CONSUMER) { 439 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, "ignored ExtIRQ producer\n")); 440 break; 441 } 442 set->set_ext_irq(dev, arc->context, res->Data.ExtendedIrq.Interrupts, 443 res->Data.ExtendedIrq.InterruptCount, 444 res->Data.ExtendedIrq.Triggering, res->Data.ExtendedIrq.Polarity); 445 break; 446 case ACPI_RESOURCE_TYPE_VENDOR: 447 ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, 448 "unimplemented VendorSpecific resource\n")); 449 break; 450 default: 451 break; 452 } 453 return (AE_OK); 454 } 455 456 /* 457 * Fetch a device's resources and associate them with the device. 458 * 459 * Note that it might be nice to also locate ACPI-specific resource items, such 460 * as GPE bits. 461 * 462 * We really need to split the resource-fetching code out from the 463 * resource-parsing code, since we may want to use the parsing 464 * code for _PRS someday. 465 */ 466 ACPI_STATUS 467 acpi_parse_resources(device_t dev, ACPI_HANDLE handle, 468 struct acpi_parse_resource_set *set, void *arg) 469 { 470 struct acpi_resource_context arc; 471 ACPI_STATUS status; 472 473 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 474 475 set->set_init(dev, arg, &arc.context); 476 arc.set = set; 477 arc.dev = dev; 478 arc.ignore_producer_flag = false; 479 480 /* 481 * UARTs on ThunderX2 set ResourceProducer on memory resources, with 482 * 7.2 firmware. 483 */ 484 if (acpi_MatchHid(handle, "ARMH0011") != ACPI_MATCHHID_NOMATCH) 485 arc.ignore_producer_flag = true; 486 487 /* 488 * ARM Coresight on N1SDP set ResourceProducer on memory resources. 489 * Coresight devices: ETM, STM, TPIU, ETF/ETR, REP, FUN. 490 */ 491 if (acpi_MatchHid(handle, "ARMHC500") != ACPI_MATCHHID_NOMATCH || 492 acpi_MatchHid(handle, "ARMHC502") != ACPI_MATCHHID_NOMATCH || 493 acpi_MatchHid(handle, "ARMHC979") != ACPI_MATCHHID_NOMATCH || 494 acpi_MatchHid(handle, "ARMHC97C") != ACPI_MATCHHID_NOMATCH || 495 acpi_MatchHid(handle, "ARMHC98D") != ACPI_MATCHHID_NOMATCH || 496 acpi_MatchHid(handle, "ARMHC9FF") != ACPI_MATCHHID_NOMATCH) 497 arc.ignore_producer_flag = true; 498 499 status = AcpiWalkResources(handle, "_CRS", acpi_parse_resource, &arc); 500 if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { 501 printf("can't fetch resources for %s - %s\n", 502 acpi_name(handle), AcpiFormatException(status)); 503 return_ACPI_STATUS (status); 504 } 505 set->set_done(dev, arc.context); 506 return_ACPI_STATUS (AE_OK); 507 } 508 509 /* 510 * Resource-set vectors used to attach _CRS-derived resources 511 * to an ACPI device. 512 */ 513 static void acpi_res_set_init(device_t dev, void *arg, void **context); 514 static void acpi_res_set_done(device_t dev, void *context); 515 static void acpi_res_set_ioport(device_t dev, void *context, 516 uint64_t base, uint64_t length); 517 static void acpi_res_set_iorange(device_t dev, void *context, 518 uint64_t low, uint64_t high, 519 uint64_t length, uint64_t align); 520 static void acpi_res_set_memory(device_t dev, void *context, 521 uint64_t base, uint64_t length); 522 static void acpi_res_set_memoryrange(device_t dev, void *context, 523 uint64_t low, uint64_t high, 524 uint64_t length, uint64_t align); 525 static void acpi_res_set_irq(device_t dev, void *context, uint8_t *irq, 526 int count, int trig, int pol); 527 static void acpi_res_set_ext_irq(device_t dev, void *context, 528 uint32_t *irq, int count, int trig, int pol); 529 static void acpi_res_set_drq(device_t dev, void *context, uint8_t *drq, 530 int count); 531 static void acpi_res_set_start_dependent(device_t dev, void *context, 532 int preference); 533 static void acpi_res_set_end_dependent(device_t dev, void *context); 534 535 struct acpi_parse_resource_set acpi_res_parse_set = { 536 acpi_res_set_init, 537 acpi_res_set_done, 538 acpi_res_set_ioport, 539 acpi_res_set_iorange, 540 acpi_res_set_memory, 541 acpi_res_set_memoryrange, 542 acpi_res_set_irq, 543 acpi_res_set_ext_irq, 544 acpi_res_set_drq, 545 acpi_res_set_start_dependent, 546 acpi_res_set_end_dependent 547 }; 548 549 struct acpi_res_context { 550 int ar_nio; 551 int ar_nmem; 552 int ar_nirq; 553 int ar_ndrq; 554 void *ar_parent; 555 }; 556 557 static void 558 acpi_res_set_init(device_t dev, void *arg, void **context) 559 { 560 struct acpi_res_context *cp; 561 562 if ((cp = AcpiOsAllocate(sizeof(*cp))) != NULL) { 563 bzero(cp, sizeof(*cp)); 564 cp->ar_parent = arg; 565 *context = cp; 566 } 567 } 568 569 static void 570 acpi_res_set_done(device_t dev, void *context) 571 { 572 struct acpi_res_context *cp = (struct acpi_res_context *)context; 573 574 if (cp == NULL) 575 return; 576 AcpiOsFree(cp); 577 } 578 579 static void 580 acpi_res_set_ioport(device_t dev, void *context, uint64_t base, 581 uint64_t length) 582 { 583 struct acpi_res_context *cp = (struct acpi_res_context *)context; 584 585 if (cp == NULL) 586 return; 587 bus_set_resource(dev, SYS_RES_IOPORT, cp->ar_nio++, base, length); 588 } 589 590 static void 591 acpi_res_set_iorange(device_t dev, void *context, uint64_t low, 592 uint64_t high, uint64_t length, uint64_t align) 593 { 594 struct acpi_res_context *cp = (struct acpi_res_context *)context; 595 596 if (cp == NULL) 597 return; 598 599 /* 600 * XXX: Some BIOSes contain buggy _CRS entries where fixed I/O 601 * ranges have the maximum base address (_MAX) to the end of the 602 * I/O range instead of the start. These are then treated as a 603 * relocatable I/O range rather than a fixed I/O resource. As a 604 * workaround, treat I/O resources encoded this way as fixed I/O 605 * ports. 606 */ 607 if (high == (low + length)) { 608 if (bootverbose) 609 device_printf(dev, 610 "_CRS has fixed I/O port range defined as relocatable\n"); 611 612 bus_set_resource(dev, SYS_RES_IOPORT, cp->ar_nio++, low, length); 613 return; 614 } 615 616 device_printf(dev, "I/O range not supported\n"); 617 } 618 619 static void 620 acpi_res_set_memory(device_t dev, void *context, uint64_t base, 621 uint64_t length) 622 { 623 struct acpi_res_context *cp = (struct acpi_res_context *)context; 624 625 if (cp == NULL) 626 return; 627 bus_set_resource(dev, SYS_RES_MEMORY, cp->ar_nmem++, base, length); 628 } 629 630 static void 631 acpi_res_set_memoryrange(device_t dev, void *context, uint64_t low, 632 uint64_t high, uint64_t length, uint64_t align) 633 { 634 struct acpi_res_context *cp = (struct acpi_res_context *)context; 635 636 if (cp == NULL) 637 return; 638 device_printf(dev, "memory range not supported\n"); 639 } 640 641 static void 642 acpi_res_set_irq(device_t dev, void *context, uint8_t *irq, int count, 643 int trig, int pol) 644 { 645 struct acpi_res_context *cp = (struct acpi_res_context *)context; 646 int i; 647 648 if (cp == NULL || irq == NULL) 649 return; 650 651 for (i = 0; i < count; i++) 652 bus_set_resource(dev, SYS_RES_IRQ, cp->ar_nirq++, irq[i], 1); 653 } 654 655 static void 656 acpi_res_set_ext_irq(device_t dev, void *context, uint32_t *irq, int count, 657 int trig, int pol) 658 { 659 struct acpi_res_context *cp = (struct acpi_res_context *)context; 660 int i; 661 662 if (cp == NULL || irq == NULL) 663 return; 664 665 for (i = 0; i < count; i++) 666 bus_set_resource(dev, SYS_RES_IRQ, cp->ar_nirq++, irq[i], 1); 667 } 668 669 static void 670 acpi_res_set_drq(device_t dev, void *context, uint8_t *drq, int count) 671 { 672 struct acpi_res_context *cp = (struct acpi_res_context *)context; 673 674 if (cp == NULL || drq == NULL) 675 return; 676 677 /* This implements no resource relocation. */ 678 if (count != 1) 679 return; 680 681 bus_set_resource(dev, SYS_RES_DRQ, cp->ar_ndrq++, *drq, 1); 682 } 683 684 static void 685 acpi_res_set_start_dependent(device_t dev, void *context, int preference) 686 { 687 struct acpi_res_context *cp = (struct acpi_res_context *)context; 688 689 if (cp == NULL) 690 return; 691 device_printf(dev, "dependent functions not supported\n"); 692 } 693 694 static void 695 acpi_res_set_end_dependent(device_t dev, void *context) 696 { 697 struct acpi_res_context *cp = (struct acpi_res_context *)context; 698 699 if (cp == NULL) 700 return; 701 device_printf(dev, "dependent functions not supported\n"); 702 } 703 704 /* 705 * Resource-owning placeholders for IO and memory pseudo-devices. 706 * 707 * This code allocates system resources that will be used by ACPI 708 * child devices. The acpi parent manages these resources through a 709 * private rman. 710 */ 711 712 static int acpi_sysres_rid = 100; 713 714 static int acpi_sysres_probe(device_t dev); 715 static int acpi_sysres_attach(device_t dev); 716 717 static device_method_t acpi_sysres_methods[] = { 718 /* Device interface */ 719 DEVMETHOD(device_probe, acpi_sysres_probe), 720 DEVMETHOD(device_attach, acpi_sysres_attach), 721 722 DEVMETHOD_END 723 }; 724 725 static driver_t acpi_sysres_driver = { 726 "acpi_sysresource", 727 acpi_sysres_methods, 728 0, 729 }; 730 731 static devclass_t acpi_sysres_devclass; 732 DRIVER_MODULE(acpi_sysresource, acpi, acpi_sysres_driver, acpi_sysres_devclass, 733 0, 0); 734 MODULE_DEPEND(acpi_sysresource, acpi, 1, 1, 1); 735 736 static int 737 acpi_sysres_probe(device_t dev) 738 { 739 static char *sysres_ids[] = { "PNP0C01", "PNP0C02", NULL }; 740 int rv; 741 742 if (acpi_disabled("sysresource")) 743 return (ENXIO); 744 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, sysres_ids, NULL); 745 if (rv > 0){ 746 return (rv); 747 } 748 device_set_desc(dev, "System Resource"); 749 device_quiet(dev); 750 return (rv); 751 } 752 753 static int 754 acpi_sysres_attach(device_t dev) 755 { 756 device_t bus; 757 struct resource_list_entry *bus_rle, *dev_rle; 758 struct resource_list *bus_rl, *dev_rl; 759 int done, type; 760 rman_res_t start, end, count; 761 762 /* 763 * Loop through all current resources to see if the new one overlaps 764 * any existing ones. If so, grow the old one up and/or down 765 * accordingly. Discard any that are wholly contained in the old. If 766 * the resource is unique, add it to the parent. It will later go into 767 * the rman pool. 768 */ 769 bus = device_get_parent(dev); 770 dev_rl = BUS_GET_RESOURCE_LIST(bus, dev); 771 bus_rl = BUS_GET_RESOURCE_LIST(device_get_parent(bus), bus); 772 STAILQ_FOREACH(dev_rle, dev_rl, link) { 773 if (dev_rle->type != SYS_RES_IOPORT && dev_rle->type != SYS_RES_MEMORY) 774 continue; 775 776 start = dev_rle->start; 777 end = dev_rle->end; 778 count = dev_rle->count; 779 type = dev_rle->type; 780 done = FALSE; 781 782 STAILQ_FOREACH(bus_rle, bus_rl, link) { 783 if (bus_rle->type != type) 784 continue; 785 786 /* New resource wholly contained in old, discard. */ 787 if (start >= bus_rle->start && end <= bus_rle->end) 788 break; 789 790 /* New tail overlaps old head, grow existing resource downward. */ 791 if (start < bus_rle->start && end >= bus_rle->start) { 792 bus_rle->count += bus_rle->start - start; 793 bus_rle->start = start; 794 done = TRUE; 795 } 796 797 /* New head overlaps old tail, grow existing resource upward. */ 798 if (start <= bus_rle->end && end > bus_rle->end) { 799 bus_rle->count += end - bus_rle->end; 800 bus_rle->end = end; 801 done = TRUE; 802 } 803 804 /* If we adjusted the old resource, we're finished. */ 805 if (done) 806 break; 807 } 808 809 /* If we didn't merge with anything, add this resource. */ 810 if (bus_rle == NULL) 811 bus_set_resource(bus, type, acpi_sysres_rid++, start, count); 812 } 813 814 /* After merging/moving resources to the parent, free the list. */ 815 resource_list_free(dev_rl); 816 817 return (0); 818 } 819