drivers/acpi/acpica/rsdump.c

   1 /*******************************************************************************
   2  *
   3  * Module Name: rsdump - AML debugger support for resource structures.
   4  *
   5  ******************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2017, Intel Corp.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions, and the following disclaimer,
  16  *    without modification.
  17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  18  *    substantially similar to the "NO WARRANTY" disclaimer below
  19  *    ("Disclaimer") and any redistribution must be conditioned upon
  20  *    including a substantially similar Disclaimer requirement for further
  21  *    binary redistribution.
  22  * 3. Neither the names of the above-listed copyright holders nor the names
  23  *    of any contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * Alternatively, this software may be distributed under the terms of the
  27  * GNU General Public License ("GPL") version 2 as published by the Free
  28  * Software Foundation.
  29  *
  30  * NO WARRANTY
  31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGES.
  42  */
  43
  44 #include <acpi/acpi.h>
  45 #include "accommon.h"
  46 #include "acresrc.h"
  47
  48 #define _COMPONENT          ACPI_RESOURCES
  49 ACPI_MODULE_NAME("rsdump")
  50
  51 /*
  52  * All functions in this module are used by the AML Debugger only
  53  */
  54 /* Local prototypes */
  55 static void acpi_rs_out_string(const char *title, const char *value);
  56
  57 static void acpi_rs_out_integer8(const char *title, u8 value);
  58
  59 static void acpi_rs_out_integer16(const char *title, u16 value);
  60
  61 static void acpi_rs_out_integer32(const char *title, u32 value);
  62
  63 static void acpi_rs_out_integer64(const char *title, u64 value);
  64
  65 static void acpi_rs_out_title(const char *title);
  66
  67 static void acpi_rs_dump_byte_list(u16 length, u8 *data);
  68
  69 static void acpi_rs_dump_word_list(u16 length, u16 *data);
  70
  71 static void acpi_rs_dump_dword_list(u8 length, u32 *data);
  72
  73 static void acpi_rs_dump_short_byte_list(u8 length, u8 *data);
  74
  75 static void
  76 acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source);
  77
  78 static void
  79 acpi_rs_dump_resource_label(char *title,
  80                             struct acpi_resource_label *resource_label);
  81
  82 static void acpi_rs_dump_address_common(union acpi_resource_data *resource);
  83
  84 static void
  85 acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table);
  86
  87 /*******************************************************************************
  88  *
  89  * FUNCTION:    acpi_rs_dump_resource_list
  90  *
  91  * PARAMETERS:  resource_list       - Pointer to a resource descriptor list
  92  *
  93  * RETURN:      None
  94  *
  95  * DESCRIPTION: Dispatches the structure to the correct dump routine.
  96  *
  97  ******************************************************************************/
  98
  99 void acpi_rs_dump_resource_list(struct acpi_resource *resource_list)
 100 {
 101         u32 count = 0;
 102         u32 type;
 103
 104         ACPI_FUNCTION_ENTRY();
 105
 106         /* Check if debug output enabled */
 107
 108         if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
 109                 return;
 110         }
 111
 112         /* Walk list and dump all resource descriptors (END_TAG terminates) */
 113
 114         do {
 115                 acpi_os_printf("\n[%02X] ", count);
 116                 count++;
 117
 118                 /* Validate Type before dispatch */
 119
 120                 type = resource_list->type;
 121                 if (type > ACPI_RESOURCE_TYPE_MAX) {
 122                         acpi_os_printf
 123                             ("Invalid descriptor type (%X) in resource list\n",
 124                              resource_list->type);
 125                         return;
 126                 }
 127
 128                 /* Sanity check the length. It must not be zero, or we loop forever */
 129
 130                 if (!resource_list->length) {
 131                         acpi_os_printf
 132                             ("Invalid zero length descriptor in resource list\n");
 133                         return;
 134                 }
 135
 136                 /* Dump the resource descriptor */
 137
 138                 if (type == ACPI_RESOURCE_TYPE_SERIAL_BUS) {
 139                         acpi_rs_dump_descriptor(&resource_list->data,
 140                                                 acpi_gbl_dump_serial_bus_dispatch
 141                                                 [resource_list->data.
 142                                                  common_serial_bus.type]);
 143                 } else {
 144                         acpi_rs_dump_descriptor(&resource_list->data,
 145                                                 acpi_gbl_dump_resource_dispatch
 146                                                 [type]);
 147                 }
 148
 149                 /* Point to the next resource structure */
 150
 151                 resource_list = ACPI_NEXT_RESOURCE(resource_list);
 152
 153                 /* Exit when END_TAG descriptor is reached */
 154
 155         } while (type != ACPI_RESOURCE_TYPE_END_TAG);
 156 }
 157
 158 /*******************************************************************************
 159  *
 160  * FUNCTION:    acpi_rs_dump_irq_list
 161  *
 162  * PARAMETERS:  route_table     - Pointer to the routing table to dump.
 163  *
 164  * RETURN:      None
 165  *
 166  * DESCRIPTION: Print IRQ routing table
 167  *
 168  ******************************************************************************/
 169
 170 void acpi_rs_dump_irq_list(u8 *route_table)
 171 {
 172         struct acpi_pci_routing_table *prt_element;
 173         u8 count;
 174
 175         ACPI_FUNCTION_ENTRY();
 176
 177         /* Check if debug output enabled */
 178
 179         if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
 180                 return;
 181         }
 182
 183         prt_element = ACPI_CAST_PTR(struct acpi_pci_routing_table, route_table);
 184
 185         /* Dump all table elements, Exit on zero length element */
 186
 187         for (count = 0; prt_element->length; count++) {
 188                 acpi_os_printf("\n[%02X] PCI IRQ Routing Table Package\n",
 189                                count);
 190                 acpi_rs_dump_descriptor(prt_element, acpi_rs_dump_prt);
 191
 192                 prt_element = ACPI_ADD_PTR(struct acpi_pci_routing_table,
 193                                            prt_element, prt_element->length);
 194         }
 195 }
 196
 197 /*******************************************************************************
 198  *
 199  * FUNCTION:    acpi_rs_dump_descriptor
 200  *
 201  * PARAMETERS:  resource            - Buffer containing the resource
 202  *              table               - Table entry to decode the resource
 203  *
 204  * RETURN:      None
 205  *
 206  * DESCRIPTION: Dump a resource descriptor based on a dump table entry.
 207  *
 208  ******************************************************************************/
 209
 210 static void
 211 acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table)
 212 {
 213         u8 *target = NULL;
 214         u8 *previous_target;
 215         const char *name;
 216         u8 count;
 217
 218         /* First table entry must contain the table length (# of table entries) */
 219
 220         count = table->offset;
 221
 222         while (count) {
 223                 previous_target = target;
 224                 target = ACPI_ADD_PTR(u8, resource, table->offset);
 225                 name = table->name;
 226
 227                 switch (table->opcode) {
 228                 case ACPI_RSD_TITLE:
 229                         /*
 230                          * Optional resource title
 231                          */
 232                         if (table->name) {
 233                                 acpi_os_printf("%s Resource\n", name);
 234                         }
 235                         break;
 236
 237                         /* Strings */
 238
 239                 case ACPI_RSD_LITERAL:
 240
 241                         acpi_rs_out_string(name,
 242                                            ACPI_CAST_PTR(char, table->pointer));
 243                         break;
 244
 245                 case ACPI_RSD_STRING:
 246
 247                         acpi_rs_out_string(name, ACPI_CAST_PTR(char, target));
 248                         break;
 249
 250                         /* Data items, 8/16/32/64 bit */
 251
 252                 case ACPI_RSD_UINT8:
 253
 254                         if (table->pointer) {
 255                                 acpi_rs_out_string(name,
 256                                                    table->pointer[*target]);
 257                         } else {
 258                                 acpi_rs_out_integer8(name, ACPI_GET8(target));
 259                         }
 260                         break;
 261
 262                 case ACPI_RSD_UINT16:
 263
 264                         acpi_rs_out_integer16(name, ACPI_GET16(target));
 265                         break;
 266
 267                 case ACPI_RSD_UINT32:
 268
 269                         acpi_rs_out_integer32(name, ACPI_GET32(target));
 270                         break;
 271
 272                 case ACPI_RSD_UINT64:
 273
 274                         acpi_rs_out_integer64(name, ACPI_GET64(target));
 275                         break;
 276
 277                         /* Flags: 1-bit and 2-bit flags supported */
 278
 279                 case ACPI_RSD_1BITFLAG:
 280
 281                         acpi_rs_out_string(name,
 282                                            table->pointer[*target & 0x01]);
 283                         break;
 284
 285                 case ACPI_RSD_2BITFLAG:
 286
 287                         acpi_rs_out_string(name,
 288                                            table->pointer[*target & 0x03]);
 289                         break;
 290
 291                 case ACPI_RSD_3BITFLAG:
 292
 293                         acpi_rs_out_string(name,
 294                                            table->pointer[*target & 0x07]);
 295                         break;
 296
 297                 case ACPI_RSD_SHORTLIST:
 298                         /*
 299                          * Short byte list (single line output) for DMA and IRQ resources
 300                          * Note: The list length is obtained from the previous table entry
 301                          */
 302                         if (previous_target) {
 303                                 acpi_rs_out_title(name);
 304                                 acpi_rs_dump_short_byte_list(*previous_target,
 305                                                              target);
 306                         }
 307                         break;
 308
 309                 case ACPI_RSD_SHORTLISTX:
 310                         /*
 311                          * Short byte list (single line output) for GPIO vendor data
 312                          * Note: The list length is obtained from the previous table entry
 313                          */
 314                         if (previous_target) {
 315                                 acpi_rs_out_title(name);
 316                                 acpi_rs_dump_short_byte_list(*previous_target,
 317                                                              *
 318                                                              (ACPI_CAST_INDIRECT_PTR
 319                                                               (u8, target)));
 320                         }
 321                         break;
 322
 323                 case ACPI_RSD_LONGLIST:
 324                         /*
 325                          * Long byte list for Vendor resource data
 326                          * Note: The list length is obtained from the previous table entry
 327                          */
 328                         if (previous_target) {
 329                                 acpi_rs_dump_byte_list(ACPI_GET16
 330                                                        (previous_target),
 331                                                        target);
 332                         }
 333                         break;
 334
 335                 case ACPI_RSD_DWORDLIST:
 336                         /*
 337                          * Dword list for Extended Interrupt resources
 338                          * Note: The list length is obtained from the previous table entry
 339                          */
 340                         if (previous_target) {
 341                                 acpi_rs_dump_dword_list(*previous_target,
 342                                                         ACPI_CAST_PTR(u32,
 343                                                                       target));
 344                         }
 345                         break;
 346
 347                 case ACPI_RSD_WORDLIST:
 348                         /*
 349                          * Word list for GPIO Pin Table
 350                          * Note: The list length is obtained from the previous table entry
 351                          */
 352                         if (previous_target) {
 353                                 acpi_rs_dump_word_list(*previous_target,
 354                                                        *(ACPI_CAST_INDIRECT_PTR
 355                                                          (u16, target)));
 356                         }
 357                         break;
 358
 359                 case ACPI_RSD_ADDRESS:
 360                         /*
 361                          * Common flags for all Address resources
 362                          */
 363                         acpi_rs_dump_address_common(ACPI_CAST_PTR
 364                                                     (union acpi_resource_data,
 365                                                      target));
 366                         break;
 367
 368                 case ACPI_RSD_SOURCE:
 369                         /*
 370                          * Optional resource_source for Address resources
 371                          */
 372                         acpi_rs_dump_resource_source(ACPI_CAST_PTR
 373                                                      (struct
 374                                                                    acpi_resource_source,
 375                                                                    target));
 376                         break;
 377
 378                 case ACPI_RSD_LABEL:
 379                         /*
 380                          * resource_label
 381                          */
 382                         acpi_rs_dump_resource_label("Resource Label",
 383                                                     ACPI_CAST_PTR(struct
 384                                                                   acpi_resource_label,
 385                                                                   target));
 386                         break;
 387
 388                 default:
 389
 390                         acpi_os_printf("**** Invalid table opcode [%X] ****\n",
 391                                        table->opcode);
 392                         return;
 393                 }
 394
 395                 table++;
 396                 count--;
 397         }
 398 }
 399
 400 /*******************************************************************************
 401  *
 402  * FUNCTION:    acpi_rs_dump_resource_source
 403  *
 404  * PARAMETERS:  resource_source     - Pointer to a Resource Source struct
 405  *
 406  * RETURN:      None
 407  *
 408  * DESCRIPTION: Common routine for dumping the optional resource_source and the
 409  *              corresponding resource_source_index.
 410  *
 411  ******************************************************************************/
 412
 413 static void
 414 acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source)
 415 {
 416         ACPI_FUNCTION_ENTRY();
 417
 418         if (resource_source->index == 0xFF) {
 419                 return;
 420         }
 421
 422         acpi_rs_out_integer8("Resource Source Index", resource_source->index);
 423
 424         acpi_rs_out_string("Resource Source",
 425                            resource_source->string_ptr ?
 426                            resource_source->string_ptr : "[Not Specified]");
 427 }
 428
 429 /*******************************************************************************
 430  *
 431  * FUNCTION:    acpi_rs_dump_resource_label
 432  *
 433  * PARAMETERS:  title              - Title of the dumped resource field
 434  *              resource_label     - Pointer to a Resource Label struct
 435  *
 436  * RETURN:      None
 437  *
 438  * DESCRIPTION: Common routine for dumping the resource_label
 439  *
 440  ******************************************************************************/
 441
 442 static void
 443 acpi_rs_dump_resource_label(char *title,
 444                             struct acpi_resource_label *resource_label)
 445 {
 446         ACPI_FUNCTION_ENTRY();
 447
 448         acpi_rs_out_string(title,
 449                            resource_label->string_ptr ?
 450                            resource_label->string_ptr : "[Not Specified]");
 451 }
 452
 453 /*******************************************************************************
 454  *
 455  * FUNCTION:    acpi_rs_dump_address_common
 456  *
 457  * PARAMETERS:  resource        - Pointer to an internal resource descriptor
 458  *
 459  * RETURN:      None
 460  *
 461  * DESCRIPTION: Dump the fields that are common to all Address resource
 462  *              descriptors
 463  *
 464  ******************************************************************************/
 465
 466 static void acpi_rs_dump_address_common(union acpi_resource_data *resource)
 467 {
 468         ACPI_FUNCTION_ENTRY();
 469
 470         /* Decode the type-specific flags */
 471
 472         switch (resource->address.resource_type) {
 473         case ACPI_MEMORY_RANGE:
 474
 475                 acpi_rs_dump_descriptor(resource, acpi_rs_dump_memory_flags);
 476                 break;
 477
 478         case ACPI_IO_RANGE:
 479
 480                 acpi_rs_dump_descriptor(resource, acpi_rs_dump_io_flags);
 481                 break;
 482
 483         case ACPI_BUS_NUMBER_RANGE:
 484
 485                 acpi_rs_out_string("Resource Type", "Bus Number Range");
 486                 break;
 487
 488         default:
 489
 490                 acpi_rs_out_integer8("Resource Type",
 491                                      (u8) resource->address.resource_type);
 492                 break;
 493         }
 494
 495         /* Decode the general flags */
 496
 497         acpi_rs_dump_descriptor(resource, acpi_rs_dump_general_flags);
 498 }
 499
 500 /*******************************************************************************
 501  *
 502  * FUNCTION:    acpi_rs_out*
 503  *
 504  * PARAMETERS:  title       - Name of the resource field
 505  *              value       - Value of the resource field
 506  *
 507  * RETURN:      None
 508  *
 509  * DESCRIPTION: Miscellaneous helper functions to consistently format the
 510  *              output of the resource dump routines
 511  *
 512  ******************************************************************************/
 513
 514 static void acpi_rs_out_string(const char *title, const char *value)
 515 {
 516
 517         acpi_os_printf("%27s : %s", title, value);
 518         if (!*value) {
 519                 acpi_os_printf("[NULL NAMESTRING]");
 520         }
 521         acpi_os_printf("\n");
 522 }
 523
 524 static void acpi_rs_out_integer8(const char *title, u8 value)
 525 {
 526         acpi_os_printf("%27s : %2.2X\n", title, value);
 527 }
 528
 529 static void acpi_rs_out_integer16(const char *title, u16 value)
 530 {
 531
 532         acpi_os_printf("%27s : %4.4X\n", title, value);
 533 }
 534
 535 static void acpi_rs_out_integer32(const char *title, u32 value)
 536 {
 537
 538         acpi_os_printf("%27s : %8.8X\n", title, value);
 539 }
 540
 541 static void acpi_rs_out_integer64(const char *title, u64 value)
 542 {
 543
 544         acpi_os_printf("%27s : %8.8X%8.8X\n", title, ACPI_FORMAT_UINT64(value));
 545 }
 546
 547 static void acpi_rs_out_title(const char *title)
 548 {
 549
 550         acpi_os_printf("%27s : ", title);
 551 }
 552
 553 /*******************************************************************************
 554  *
 555  * FUNCTION:    acpi_rs_dump*List
 556  *
 557  * PARAMETERS:  length      - Number of elements in the list
 558  *              data        - Start of the list
 559  *
 560  * RETURN:      None
 561  *
 562  * DESCRIPTION: Miscellaneous functions to dump lists of raw data
 563  *
 564  ******************************************************************************/
 565
 566 static void acpi_rs_dump_byte_list(u16 length, u8 * data)
 567 {
 568         u8 i;
 569
 570         for (i = 0; i < length; i++) {
 571                 acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]);
 572         }
 573 }
 574
 575 static void acpi_rs_dump_short_byte_list(u8 length, u8 * data)
 576 {
 577         u8 i;
 578
 579         for (i = 0; i < length; i++) {
 580                 acpi_os_printf("%X ", data[i]);
 581         }
 582
 583         acpi_os_printf("\n");
 584 }
 585
 586 static void acpi_rs_dump_dword_list(u8 length, u32 * data)
 587 {
 588         u8 i;
 589
 590         for (i = 0; i < length; i++) {
 591                 acpi_os_printf("%25s%2.2X : %8.8X\n", "Dword", i, data[i]);
 592         }
 593 }
 594
 595 static void acpi_rs_dump_word_list(u16 length, u16 *data)
 596 {
 597         u16 i;
 598
 599         for (i = 0; i < length; i++) {
 600                 acpi_os_printf("%25s%2.2X : %4.4X\n", "Word", i, data[i]);
 601         }
 602 }