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 status = AcpiWalkResources(handle, "_CRS", acpi_parse_resource, &arc); 488 if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { 489 printf("can't fetch resources for %s - %s\n", 490 acpi_name(handle), AcpiFormatException(status)); 491 return_ACPI_STATUS (status); 492 } 493 set->set_done(dev, arc.context); 494 return_ACPI_STATUS (AE_OK); 495 } 496 497 /* 498 * Resource-set vectors used to attach _CRS-derived resources 499 * to an ACPI device. 500 */ 501 static void acpi_res_set_init(device_t dev, void *arg, void **context); 502 static void acpi_res_set_done(device_t dev, void *context); 503 static void acpi_res_set_ioport(device_t dev, void *context, 504 uint64_t base, uint64_t length); 505 static void acpi_res_set_iorange(device_t dev, void *context, 506 uint64_t low, uint64_t high, 507 uint64_t length, uint64_t align); 508 static void acpi_res_set_memory(device_t dev, void *context, 509 uint64_t base, uint64_t length); 510 static void acpi_res_set_memoryrange(device_t dev, void *context, 511 uint64_t low, uint64_t high, 512 uint64_t length, uint64_t align); 513 static void acpi_res_set_irq(device_t dev, void *context, uint8_t *irq, 514 int count, int trig, int pol); 515 static void acpi_res_set_ext_irq(device_t dev, void *context, 516 uint32_t *irq, int count, int trig, int pol); 517 static void acpi_res_set_drq(device_t dev, void *context, uint8_t *drq, 518 int count); 519 static void acpi_res_set_start_dependent(device_t dev, void *context, 520 int preference); 521 static void acpi_res_set_end_dependent(device_t dev, void *context); 522 523 struct acpi_parse_resource_set acpi_res_parse_set = { 524 acpi_res_set_init, 525 acpi_res_set_done, 526 acpi_res_set_ioport, 527 acpi_res_set_iorange, 528 acpi_res_set_memory, 529 acpi_res_set_memoryrange, 530 acpi_res_set_irq, 531 acpi_res_set_ext_irq, 532 acpi_res_set_drq, 533 acpi_res_set_start_dependent, 534 acpi_res_set_end_dependent 535 }; 536 537 struct acpi_res_context { 538 int ar_nio; 539 int ar_nmem; 540 int ar_nirq; 541 int ar_ndrq; 542 void *ar_parent; 543 }; 544 545 static void 546 acpi_res_set_init(device_t dev, void *arg, void **context) 547 { 548 struct acpi_res_context *cp; 549 550 if ((cp = AcpiOsAllocate(sizeof(*cp))) != NULL) { 551 bzero(cp, sizeof(*cp)); 552 cp->ar_parent = arg; 553 *context = cp; 554 } 555 } 556 557 static void 558 acpi_res_set_done(device_t dev, void *context) 559 { 560 struct acpi_res_context *cp = (struct acpi_res_context *)context; 561 562 if (cp == NULL) 563 return; 564 AcpiOsFree(cp); 565 } 566 567 static void 568 acpi_res_set_ioport(device_t dev, void *context, uint64_t base, 569 uint64_t length) 570 { 571 struct acpi_res_context *cp = (struct acpi_res_context *)context; 572 573 if (cp == NULL) 574 return; 575 bus_set_resource(dev, SYS_RES_IOPORT, cp->ar_nio++, base, length); 576 } 577 578 static void 579 acpi_res_set_iorange(device_t dev, void *context, uint64_t low, 580 uint64_t high, uint64_t length, uint64_t align) 581 { 582 struct acpi_res_context *cp = (struct acpi_res_context *)context; 583 584 if (cp == NULL) 585 return; 586 587 /* 588 * XXX: Some BIOSes contain buggy _CRS entries where fixed I/O 589 * ranges have the maximum base address (_MAX) to the end of the 590 * I/O range instead of the start. These are then treated as a 591 * relocatable I/O range rather than a fixed I/O resource. As a 592 * workaround, treat I/O resources encoded this way as fixed I/O 593 * ports. 594 */ 595 if (high == (low + length)) { 596 if (bootverbose) 597 device_printf(dev, 598 "_CRS has fixed I/O port range defined as relocatable\n"); 599 600 bus_set_resource(dev, SYS_RES_IOPORT, cp->ar_nio++, low, length); 601 return; 602 } 603 604 device_printf(dev, "I/O range not supported\n"); 605 } 606 607 static void 608 acpi_res_set_memory(device_t dev, void *context, uint64_t base, 609 uint64_t length) 610 { 611 struct acpi_res_context *cp = (struct acpi_res_context *)context; 612 613 if (cp == NULL) 614 return; 615 bus_set_resource(dev, SYS_RES_MEMORY, cp->ar_nmem++, base, length); 616 } 617 618 static void 619 acpi_res_set_memoryrange(device_t dev, void *context, uint64_t low, 620 uint64_t high, uint64_t length, uint64_t align) 621 { 622 struct acpi_res_context *cp = (struct acpi_res_context *)context; 623 624 if (cp == NULL) 625 return; 626 device_printf(dev, "memory range not supported\n"); 627 } 628 629 static void 630 acpi_res_set_irq(device_t dev, void *context, uint8_t *irq, int count, 631 int trig, int pol) 632 { 633 struct acpi_res_context *cp = (struct acpi_res_context *)context; 634 rman_res_t intr; 635 636 if (cp == NULL || irq == NULL) 637 return; 638 639 /* This implements no resource relocation. */ 640 if (count != 1) 641 return; 642 643 intr = *irq; 644 bus_set_resource(dev, SYS_RES_IRQ, cp->ar_nirq++, intr, 1); 645 } 646 647 static void 648 acpi_res_set_ext_irq(device_t dev, void *context, uint32_t *irq, int count, 649 int trig, int pol) 650 { 651 struct acpi_res_context *cp = (struct acpi_res_context *)context; 652 rman_res_t intr; 653 654 if (cp == NULL || irq == NULL) 655 return; 656 657 /* This implements no resource relocation. */ 658 if (count != 1) 659 return; 660 661 intr = *irq; 662 bus_set_resource(dev, SYS_RES_IRQ, cp->ar_nirq++, intr, 1); 663 } 664 665 static void 666 acpi_res_set_drq(device_t dev, void *context, uint8_t *drq, int count) 667 { 668 struct acpi_res_context *cp = (struct acpi_res_context *)context; 669 670 if (cp == NULL || drq == NULL) 671 return; 672 673 /* This implements no resource relocation. */ 674 if (count != 1) 675 return; 676 677 bus_set_resource(dev, SYS_RES_DRQ, cp->ar_ndrq++, *drq, 1); 678 } 679 680 static void 681 acpi_res_set_start_dependent(device_t dev, void *context, int preference) 682 { 683 struct acpi_res_context *cp = (struct acpi_res_context *)context; 684 685 if (cp == NULL) 686 return; 687 device_printf(dev, "dependent functions not supported\n"); 688 } 689 690 static void 691 acpi_res_set_end_dependent(device_t dev, void *context) 692 { 693 struct acpi_res_context *cp = (struct acpi_res_context *)context; 694 695 if (cp == NULL) 696 return; 697 device_printf(dev, "dependent functions not supported\n"); 698 } 699 700 /* 701 * Resource-owning placeholders for IO and memory pseudo-devices. 702 * 703 * This code allocates system resources that will be used by ACPI 704 * child devices. The acpi parent manages these resources through a 705 * private rman. 706 */ 707 708 static int acpi_sysres_rid = 100; 709 710 static int acpi_sysres_probe(device_t dev); 711 static int acpi_sysres_attach(device_t dev); 712 713 static device_method_t acpi_sysres_methods[] = { 714 /* Device interface */ 715 DEVMETHOD(device_probe, acpi_sysres_probe), 716 DEVMETHOD(device_attach, acpi_sysres_attach), 717 718 DEVMETHOD_END 719 }; 720 721 static driver_t acpi_sysres_driver = { 722 "acpi_sysresource", 723 acpi_sysres_methods, 724 0, 725 }; 726 727 static devclass_t acpi_sysres_devclass; 728 DRIVER_MODULE(acpi_sysresource, acpi, acpi_sysres_driver, acpi_sysres_devclass, 729 0, 0); 730 MODULE_DEPEND(acpi_sysresource, acpi, 1, 1, 1); 731 732 static int 733 acpi_sysres_probe(device_t dev) 734 { 735 static char *sysres_ids[] = { "PNP0C01", "PNP0C02", NULL }; 736 int rv; 737 738 if (acpi_disabled("sysresource")) 739 return (ENXIO); 740 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, sysres_ids, NULL); 741 if (rv > 0){ 742 return (rv); 743 } 744 device_set_desc(dev, "System Resource"); 745 device_quiet(dev); 746 return (rv); 747 } 748 749 static int 750 acpi_sysres_attach(device_t dev) 751 { 752 device_t bus; 753 struct resource_list_entry *bus_rle, *dev_rle; 754 struct resource_list *bus_rl, *dev_rl; 755 int done, type; 756 rman_res_t start, end, count; 757 758 /* 759 * Loop through all current resources to see if the new one overlaps 760 * any existing ones. If so, grow the old one up and/or down 761 * accordingly. Discard any that are wholly contained in the old. If 762 * the resource is unique, add it to the parent. It will later go into 763 * the rman pool. 764 */ 765 bus = device_get_parent(dev); 766 dev_rl = BUS_GET_RESOURCE_LIST(bus, dev); 767 bus_rl = BUS_GET_RESOURCE_LIST(device_get_parent(bus), bus); 768 STAILQ_FOREACH(dev_rle, dev_rl, link) { 769 if (dev_rle->type != SYS_RES_IOPORT && dev_rle->type != SYS_RES_MEMORY) 770 continue; 771 772 start = dev_rle->start; 773 end = dev_rle->end; 774 count = dev_rle->count; 775 type = dev_rle->type; 776 done = FALSE; 777 778 STAILQ_FOREACH(bus_rle, bus_rl, link) { 779 if (bus_rle->type != type) 780 continue; 781 782 /* New resource wholly contained in old, discard. */ 783 if (start >= bus_rle->start && end <= bus_rle->end) 784 break; 785 786 /* New tail overlaps old head, grow existing resource downward. */ 787 if (start < bus_rle->start && end >= bus_rle->start) { 788 bus_rle->count += bus_rle->start - start; 789 bus_rle->start = start; 790 done = TRUE; 791 } 792 793 /* New head overlaps old tail, grow existing resource upward. */ 794 if (start <= bus_rle->end && end > bus_rle->end) { 795 bus_rle->count += end - bus_rle->end; 796 bus_rle->end = end; 797 done = TRUE; 798 } 799 800 /* If we adjusted the old resource, we're finished. */ 801 if (done) 802 break; 803 } 804 805 /* If we didn't merge with anything, add this resource. */ 806 if (bus_rle == NULL) 807 bus_set_resource(bus, type, acpi_sysres_rid++, start, count); 808 } 809 810 /* After merging/moving resources to the parent, free the list. */ 811 resource_list_free(dev_rl); 812 813 return (0); 814 } 815