drivers/acpi/acpica/rsdump.c

   1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
   2 /*******************************************************************************
   3  *
   4  * Module Name: rsdump - AML debugger support for resource structures.
   5  *
   6  ******************************************************************************/
   7
   8 #include <acpi/acpi.h>
   9 #include "accommon.h"
  10 #include "acresrc.h"
  11
  12 #define _COMPONENT          ACPI_RESOURCES
  13 ACPI_MODULE_NAME("rsdump")
  14
  15 /*
  16  * All functions in this module are used by the AML Debugger only
  17  */
  18 /* Local prototypes */
  19 static void acpi_rs_out_string(const char *title, const char *value);
  20
  21 static void acpi_rs_out_integer8(const char *title, u8 value);
  22
  23 static void acpi_rs_out_integer16(const char *title, u16 value);
  24
  25 static void acpi_rs_out_integer32(const char *title, u32 value);
  26
  27 static void acpi_rs_out_integer64(const char *title, u64 value);
  28
  29 static void acpi_rs_out_title(const char *title);
  30
  31 static void acpi_rs_dump_byte_list(u16 length, u8 *data);
  32
  33 static void acpi_rs_dump_word_list(u16 length, u16 *data);
  34
  35 static void acpi_rs_dump_dword_list(u8 length, u32 *data);
  36
  37 static void acpi_rs_dump_short_byte_list(u8 length, u8 *data);
  38
  39 static void
  40 acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source);
  41
  42 static void
  43 acpi_rs_dump_resource_label(char *title,
  44                             struct acpi_resource_label *resource_label);
  45
  46 static void acpi_rs_dump_address_common(union acpi_resource_data *resource);
  47
  48 static void
  49 acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table);
  50
  51 /*******************************************************************************
  52  *
  53  * FUNCTION:    acpi_rs_dump_resource_list
  54  *
  55  * PARAMETERS:  resource_list       - Pointer to a resource descriptor list
  56  *
  57  * RETURN:      None
  58  *
  59  * DESCRIPTION: Dispatches the structure to the correct dump routine.
  60  *
  61  ******************************************************************************/
  62
  63 void acpi_rs_dump_resource_list(struct acpi_resource *resource_list)
  64 {
  65         u32 count = 0;
  66         u32 type;
  67
  68         ACPI_FUNCTION_ENTRY();
  69
  70         /* Check if debug output enabled */
  71
  72         if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
  73                 return;
  74         }
  75
  76         /* Walk list and dump all resource descriptors (END_TAG terminates) */
  77
  78         do {
  79                 acpi_os_printf("\n[%02X] ", count);
  80                 count++;
  81
  82                 /* Validate Type before dispatch */
  83
  84                 type = resource_list->type;
  85                 if (type > ACPI_RESOURCE_TYPE_MAX) {
  86                         acpi_os_printf
  87                             ("Invalid descriptor type (%X) in resource list\n",
  88                              resource_list->type);
  89                         return;
  90                 }
  91
  92                 /* Sanity check the length. It must not be zero, or we loop forever */
  93
  94                 if (!resource_list->length) {
  95                         acpi_os_printf
  96                             ("Invalid zero length descriptor in resource list\n");
  97                         return;
  98                 }
  99
 100                 /* Dump the resource descriptor */
 101
 102                 if (type == ACPI_RESOURCE_TYPE_SERIAL_BUS) {
 103                         acpi_rs_dump_descriptor(&resource_list->data,
 104                                                 acpi_gbl_dump_serial_bus_dispatch
 105                                                 [resource_list->data.
 106                                                  common_serial_bus.type]);
 107                 } else {
 108                         acpi_rs_dump_descriptor(&resource_list->data,
 109                                                 acpi_gbl_dump_resource_dispatch
 110                                                 [type]);
 111                 }
 112
 113                 /* Point to the next resource structure */
 114
 115                 resource_list = ACPI_NEXT_RESOURCE(resource_list);
 116
 117                 /* Exit when END_TAG descriptor is reached */
 118
 119         } while (type != ACPI_RESOURCE_TYPE_END_TAG);
 120 }
 121
 122 /*******************************************************************************
 123  *
 124  * FUNCTION:    acpi_rs_dump_irq_list
 125  *
 126  * PARAMETERS:  route_table     - Pointer to the routing table to dump.
 127  *
 128  * RETURN:      None
 129  *
 130  * DESCRIPTION: Print IRQ routing table
 131  *
 132  ******************************************************************************/
 133
 134 void acpi_rs_dump_irq_list(u8 *route_table)
 135 {
 136         struct acpi_pci_routing_table *prt_element;
 137         u8 count;
 138
 139         ACPI_FUNCTION_ENTRY();
 140
 141         /* Check if debug output enabled */
 142
 143         if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
 144                 return;
 145         }
 146
 147         prt_element = ACPI_CAST_PTR(struct acpi_pci_routing_table, route_table);
 148
 149         /* Dump all table elements, Exit on zero length element */
 150
 151         for (count = 0; prt_element->length; count++) {
 152                 acpi_os_printf("\n[%02X] PCI IRQ Routing Table Package\n",
 153                                count);
 154                 acpi_rs_dump_descriptor(prt_element, acpi_rs_dump_prt);
 155
 156                 prt_element = ACPI_ADD_PTR(struct acpi_pci_routing_table,
 157                                            prt_element, prt_element->length);
 158         }
 159 }
 160
 161 /*******************************************************************************
 162  *
 163  * FUNCTION:    acpi_rs_dump_descriptor
 164  *
 165  * PARAMETERS:  resource            - Buffer containing the resource
 166  *              table               - Table entry to decode the resource
 167  *
 168  * RETURN:      None
 169  *
 170  * DESCRIPTION: Dump a resource descriptor based on a dump table entry.
 171  *
 172  ******************************************************************************/
 173
 174 static void
 175 acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table)
 176 {
 177         u8 *target = NULL;
 178         u8 *previous_target;
 179         const char *name;
 180         u8 count;
 181
 182         /* First table entry must contain the table length (# of table entries) */
 183
 184         count = table->offset;
 185
 186         while (count) {
 187                 previous_target = target;
 188                 target = ACPI_ADD_PTR(u8, resource, table->offset);
 189                 name = table->name;
 190
 191                 switch (table->opcode) {
 192                 case ACPI_RSD_TITLE:
 193                         /*
 194                          * Optional resource title
 195                          */
 196                         if (table->name) {
 197                                 acpi_os_printf("%s Resource\n", name);
 198                         }
 199                         break;
 200
 201                         /* Strings */
 202
 203                 case ACPI_RSD_LITERAL:
 204
 205                         acpi_rs_out_string(name,
 206                                            ACPI_CAST_PTR(char, table->pointer));
 207                         break;
 208
 209                 case ACPI_RSD_STRING:
 210
 211                         acpi_rs_out_string(name, ACPI_CAST_PTR(char, target));
 212                         break;
 213
 214                         /* Data items, 8/16/32/64 bit */
 215
 216                 case ACPI_RSD_UINT8:
 217
 218                         if (table->pointer) {
 219                                 acpi_rs_out_string(name,
 220                                                    table->pointer[*target]);
 221                         } else {
 222                                 acpi_rs_out_integer8(name, ACPI_GET8(target));
 223                         }
 224                         break;
 225
 226                 case ACPI_RSD_UINT16:
 227
 228                         acpi_rs_out_integer16(name, ACPI_GET16(target));
 229                         break;
 230
 231                 case ACPI_RSD_UINT32:
 232
 233                         acpi_rs_out_integer32(name, ACPI_GET32(target));
 234                         break;
 235
 236                 case ACPI_RSD_UINT64:
 237
 238                         acpi_rs_out_integer64(name, ACPI_GET64(target));
 239                         break;
 240
 241                         /* Flags: 1-bit and 2-bit flags supported */
 242
 243                 case ACPI_RSD_1BITFLAG:
 244
 245                         acpi_rs_out_string(name,
 246                                            table->pointer[*target & 0x01]);
 247                         break;
 248
 249                 case ACPI_RSD_2BITFLAG:
 250
 251                         acpi_rs_out_string(name,
 252                                            table->pointer[*target & 0x03]);
 253                         break;
 254
 255                 case ACPI_RSD_3BITFLAG:
 256
 257                         acpi_rs_out_string(name,
 258                                            table->pointer[*target & 0x07]);
 259                         break;
 260
 261                 case ACPI_RSD_SHORTLIST:
 262                         /*
 263                          * Short byte list (single line output) for DMA and IRQ resources
 264                          * Note: The list length is obtained from the previous table entry
 265                          */
 266                         if (previous_target) {
 267                                 acpi_rs_out_title(name);
 268                                 acpi_rs_dump_short_byte_list(*previous_target,
 269                                                              target);
 270                         }
 271                         break;
 272
 273                 case ACPI_RSD_SHORTLISTX:
 274                         /*
 275                          * Short byte list (single line output) for GPIO vendor data
 276                          * Note: The list length is obtained from the previous table entry
 277                          */
 278                         if (previous_target) {
 279                                 acpi_rs_out_title(name);
 280                                 acpi_rs_dump_short_byte_list(*previous_target,
 281                                                              *
 282                                                              (ACPI_CAST_INDIRECT_PTR
 283                                                               (u8, target)));
 284                         }
 285                         break;
 286
 287                 case ACPI_RSD_LONGLIST:
 288                         /*
 289                          * Long byte list for Vendor resource data
 290                          * Note: The list length is obtained from the previous table entry
 291                          */
 292                         if (previous_target) {
 293                                 acpi_rs_dump_byte_list(ACPI_GET16
 294                                                        (previous_target),
 295                                                        target);
 296                         }
 297                         break;
 298
 299                 case ACPI_RSD_DWORDLIST:
 300                         /*
 301                          * Dword list for Extended Interrupt resources
 302                          * Note: The list length is obtained from the previous table entry
 303                          */
 304                         if (previous_target) {
 305                                 acpi_rs_dump_dword_list(*previous_target,
 306                                                         ACPI_CAST_PTR(u32,
 307                                                                       target));
 308                         }
 309                         break;
 310
 311                 case ACPI_RSD_WORDLIST:
 312                         /*
 313                          * Word list for GPIO Pin Table
 314                          * Note: The list length is obtained from the previous table entry
 315                          */
 316                         if (previous_target) {
 317                                 acpi_rs_dump_word_list(*previous_target,
 318                                                        *(ACPI_CAST_INDIRECT_PTR
 319                                                          (u16, target)));
 320                         }
 321                         break;
 322
 323                 case ACPI_RSD_ADDRESS:
 324                         /*
 325                          * Common flags for all Address resources
 326                          */
 327                         acpi_rs_dump_address_common(ACPI_CAST_PTR
 328                                                     (union acpi_resource_data,
 329                                                      target));
 330                         break;
 331
 332                 case ACPI_RSD_SOURCE:
 333                         /*
 334                          * Optional resource_source for Address resources
 335                          */
 336                         acpi_rs_dump_resource_source(ACPI_CAST_PTR
 337                                                      (struct
 338                                                                    acpi_resource_source,
 339                                                                    target));
 340                         break;
 341
 342                 case ACPI_RSD_LABEL:
 343                         /*
 344                          * resource_label
 345                          */
 346                         acpi_rs_dump_resource_label("Resource Label",
 347                                                     ACPI_CAST_PTR(struct
 348                                                                   acpi_resource_label,
 349                                                                   target));
 350                         break;
 351
 352                 case ACPI_RSD_SOURCE_LABEL:
 353                         /*
 354                          * resource_source_label
 355                          */
 356                         acpi_rs_dump_resource_label("Resource Source Label",
 357                                                     ACPI_CAST_PTR(struct
 358                                                                   acpi_resource_label,
 359                                                                   target));
 360                         break;
 361
 362                 default:
 363
 364                         acpi_os_printf("**** Invalid table opcode [%X] ****\n",
 365                                        table->opcode);
 366                         return;
 367                 }
 368
 369                 table++;
 370                 count--;
 371         }
 372 }
 373
 374 /*******************************************************************************
 375  *
 376  * FUNCTION:    acpi_rs_dump_resource_source
 377  *
 378  * PARAMETERS:  resource_source     - Pointer to a Resource Source struct
 379  *
 380  * RETURN:      None
 381  *
 382  * DESCRIPTION: Common routine for dumping the optional resource_source and the
 383  *              corresponding resource_source_index.
 384  *
 385  ******************************************************************************/
 386
 387 static void
 388 acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source)
 389 {
 390         ACPI_FUNCTION_ENTRY();
 391
 392         if (resource_source->index == 0xFF) {
 393                 return;
 394         }
 395
 396         acpi_rs_out_integer8("Resource Source Index", resource_source->index);
 397
 398         acpi_rs_out_string("Resource Source",
 399                            resource_source->string_ptr ?
 400                            resource_source->string_ptr : "[Not Specified]");
 401 }
 402
 403 /*******************************************************************************
 404  *
 405  * FUNCTION:    acpi_rs_dump_resource_label
 406  *
 407  * PARAMETERS:  title              - Title of the dumped resource field
 408  *              resource_label     - Pointer to a Resource Label struct
 409  *
 410  * RETURN:      None
 411  *
 412  * DESCRIPTION: Common routine for dumping the resource_label
 413  *
 414  ******************************************************************************/
 415
 416 static void
 417 acpi_rs_dump_resource_label(char *title,
 418                             struct acpi_resource_label *resource_label)
 419 {
 420         ACPI_FUNCTION_ENTRY();
 421
 422         acpi_rs_out_string(title,
 423                            resource_label->string_ptr ?
 424                            resource_label->string_ptr : "[Not Specified]");
 425 }
 426
 427 /*******************************************************************************
 428  *
 429  * FUNCTION:    acpi_rs_dump_address_common
 430  *
 431  * PARAMETERS:  resource        - Pointer to an internal resource descriptor
 432  *
 433  * RETURN:      None
 434  *
 435  * DESCRIPTION: Dump the fields that are common to all Address resource
 436  *              descriptors
 437  *
 438  ******************************************************************************/
 439
 440 static void acpi_rs_dump_address_common(union acpi_resource_data *resource)
 441 {
 442         ACPI_FUNCTION_ENTRY();
 443
 444         /* Decode the type-specific flags */
 445
 446         switch (resource->address.resource_type) {
 447         case ACPI_MEMORY_RANGE:
 448
 449                 acpi_rs_dump_descriptor(resource, acpi_rs_dump_memory_flags);
 450                 break;
 451
 452         case ACPI_IO_RANGE:
 453
 454                 acpi_rs_dump_descriptor(resource, acpi_rs_dump_io_flags);
 455                 break;
 456
 457         case ACPI_BUS_NUMBER_RANGE:
 458
 459                 acpi_rs_out_string("Resource Type", "Bus Number Range");
 460                 break;
 461
 462         default:
 463
 464                 acpi_rs_out_integer8("Resource Type",
 465                                      (u8) resource->address.resource_type);
 466                 break;
 467         }
 468
 469         /* Decode the general flags */
 470
 471         acpi_rs_dump_descriptor(resource, acpi_rs_dump_general_flags);
 472 }
 473
 474 /*******************************************************************************
 475  *
 476  * FUNCTION:    acpi_rs_out*
 477  *
 478  * PARAMETERS:  title       - Name of the resource field
 479  *              value       - Value of the resource field
 480  *
 481  * RETURN:      None
 482  *
 483  * DESCRIPTION: Miscellaneous helper functions to consistently format the
 484  *              output of the resource dump routines
 485  *
 486  ******************************************************************************/
 487
 488 static void acpi_rs_out_string(const char *title, const char *value)
 489 {
 490
 491         acpi_os_printf("%27s : %s", title, value);
 492         if (!*value) {
 493                 acpi_os_printf("[NULL NAMESTRING]");
 494         }
 495         acpi_os_printf("\n");
 496 }
 497
 498 static void acpi_rs_out_integer8(const char *title, u8 value)
 499 {
 500         acpi_os_printf("%27s : %2.2X\n", title, value);
 501 }
 502
 503 static void acpi_rs_out_integer16(const char *title, u16 value)
 504 {
 505
 506         acpi_os_printf("%27s : %4.4X\n", title, value);
 507 }
 508
 509 static void acpi_rs_out_integer32(const char *title, u32 value)
 510 {
 511
 512         acpi_os_printf("%27s : %8.8X\n", title, value);
 513 }
 514
 515 static void acpi_rs_out_integer64(const char *title, u64 value)
 516 {
 517
 518         acpi_os_printf("%27s : %8.8X%8.8X\n", title, ACPI_FORMAT_UINT64(value));
 519 }
 520
 521 static void acpi_rs_out_title(const char *title)
 522 {
 523
 524         acpi_os_printf("%27s : ", title);
 525 }
 526
 527 /*******************************************************************************
 528  *
 529  * FUNCTION:    acpi_rs_dump*List
 530  *
 531  * PARAMETERS:  length      - Number of elements in the list
 532  *              data        - Start of the list
 533  *
 534  * RETURN:      None
 535  *
 536  * DESCRIPTION: Miscellaneous functions to dump lists of raw data
 537  *
 538  ******************************************************************************/
 539
 540 static void acpi_rs_dump_byte_list(u16 length, u8 * data)
 541 {
 542         u16 i;
 543
 544         for (i = 0; i < length; i++) {
 545                 acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]);
 546         }
 547 }
 548
 549 static void acpi_rs_dump_short_byte_list(u8 length, u8 * data)
 550 {
 551         u8 i;
 552
 553         for (i = 0; i < length; i++) {
 554                 acpi_os_printf("%X ", data[i]);
 555         }
 556
 557         acpi_os_printf("\n");
 558 }
 559
 560 static void acpi_rs_dump_dword_list(u8 length, u32 * data)
 561 {
 562         u8 i;
 563
 564         for (i = 0; i < length; i++) {
 565                 acpi_os_printf("%25s%2.2X : %8.8X\n", "Dword", i, data[i]);
 566         }
 567 }
 568
 569 static void acpi_rs_dump_word_list(u16 length, u16 *data)
 570 {
 571         u16 i;
 572
 573         for (i = 0; i < length; i++) {
 574                 acpi_os_printf("%25s%2.2X : %4.4X\n", "Word", i, data[i]);
 575         }
 576 }