drivers/acpi/acpica/rsdump.c

   1 /*******************************************************************************
   2  *
   3  * Module Name: rsdump - Functions to display the resource structures.
   4  *
   5  ******************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2014, 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 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
  51 /* Local prototypes */
  52 static void acpi_rs_out_string(char *title, char *value);
  53
  54 static void acpi_rs_out_integer8(char *title, u8 value);
  55
  56 static void acpi_rs_out_integer16(char *title, u16 value);
  57
  58 static void acpi_rs_out_integer32(char *title, u32 value);
  59
  60 static void acpi_rs_out_integer64(char *title, u64 value);
  61
  62 static void acpi_rs_out_title(char *title);
  63
  64 static void acpi_rs_dump_byte_list(u16 length, u8 *data);
  65
  66 static void acpi_rs_dump_word_list(u16 length, u16 *data);
  67
  68 static void acpi_rs_dump_dword_list(u8 length, u32 *data);
  69
  70 static void acpi_rs_dump_short_byte_list(u8 length, u8 *data);
  71
  72 static void
  73 acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source);
  74
  75 static void acpi_rs_dump_address_common(union acpi_resource_data *resource);
  76
  77 static void
  78 acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table);
  79
  80 /*******************************************************************************
  81  *
  82  * FUNCTION:    acpi_rs_dump_descriptor
  83  *
  84  * PARAMETERS:  resource            - Buffer containing the resource
  85  *              table               - Table entry to decode the resource
  86  *
  87  * RETURN:      None
  88  *
  89  * DESCRIPTION: Dump a resource descriptor based on a dump table entry.
  90  *
  91  ******************************************************************************/
  92
  93 static void
  94 acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table)
  95 {
  96         u8 *target = NULL;
  97         u8 *previous_target;
  98         char *name;
  99         u8 count;
 100
 101         /* First table entry must contain the table length (# of table entries) */
 102
 103         count = table->offset;
 104
 105         while (count) {
 106                 previous_target = target;
 107                 target = ACPI_ADD_PTR(u8, resource, table->offset);
 108                 name = table->name;
 109
 110                 switch (table->opcode) {
 111                 case ACPI_RSD_TITLE:
 112                         /*
 113                          * Optional resource title
 114                          */
 115                         if (table->name) {
 116                                 acpi_os_printf("%s Resource\n", name);
 117                         }
 118                         break;
 119
 120                         /* Strings */
 121
 122                 case ACPI_RSD_LITERAL:
 123
 124                         acpi_rs_out_string(name,
 125                                            ACPI_CAST_PTR(char, table->pointer));
 126                         break;
 127
 128                 case ACPI_RSD_STRING:
 129
 130                         acpi_rs_out_string(name, ACPI_CAST_PTR(char, target));
 131                         break;
 132
 133                         /* Data items, 8/16/32/64 bit */
 134
 135                 case ACPI_RSD_UINT8:
 136
 137                         if (table->pointer) {
 138                                 acpi_rs_out_string(name, ACPI_CAST_PTR(char,
 139                                                                        table->
 140                                                                        pointer
 141                                                                        [*target]));
 142                         } else {
 143                                 acpi_rs_out_integer8(name, ACPI_GET8(target));
 144                         }
 145                         break;
 146
 147                 case ACPI_RSD_UINT16:
 148
 149                         acpi_rs_out_integer16(name, ACPI_GET16(target));
 150                         break;
 151
 152                 case ACPI_RSD_UINT32:
 153
 154                         acpi_rs_out_integer32(name, ACPI_GET32(target));
 155                         break;
 156
 157                 case ACPI_RSD_UINT64:
 158
 159                         acpi_rs_out_integer64(name, ACPI_GET64(target));
 160                         break;
 161
 162                         /* Flags: 1-bit and 2-bit flags supported */
 163
 164                 case ACPI_RSD_1BITFLAG:
 165
 166                         acpi_rs_out_string(name, ACPI_CAST_PTR(char,
 167                                                                table->
 168                                                                pointer[*target &
 169                                                                        0x01]));
 170                         break;
 171
 172                 case ACPI_RSD_2BITFLAG:
 173
 174                         acpi_rs_out_string(name, ACPI_CAST_PTR(char,
 175                                                                table->
 176                                                                pointer[*target &
 177                                                                        0x03]));
 178                         break;
 179
 180                 case ACPI_RSD_3BITFLAG:
 181
 182                         acpi_rs_out_string(name, ACPI_CAST_PTR(char,
 183                                                                table->
 184                                                                pointer[*target &
 185                                                                        0x07]));
 186                         break;
 187
 188                 case ACPI_RSD_SHORTLIST:
 189                         /*
 190                          * Short byte list (single line output) for DMA and IRQ resources
 191                          * Note: The list length is obtained from the previous table entry
 192                          */
 193                         if (previous_target) {
 194                                 acpi_rs_out_title(name);
 195                                 acpi_rs_dump_short_byte_list(*previous_target,
 196                                                              target);
 197                         }
 198                         break;
 199
 200                 case ACPI_RSD_SHORTLISTX:
 201                         /*
 202                          * Short byte list (single line output) for GPIO vendor data
 203                          * Note: The list length is obtained from the previous table entry
 204                          */
 205                         if (previous_target) {
 206                                 acpi_rs_out_title(name);
 207                                 acpi_rs_dump_short_byte_list(*previous_target,
 208                                                              *
 209                                                              (ACPI_CAST_INDIRECT_PTR
 210                                                               (u8, target)));
 211                         }
 212                         break;
 213
 214                 case ACPI_RSD_LONGLIST:
 215                         /*
 216                          * Long byte list for Vendor resource data
 217                          * Note: The list length is obtained from the previous table entry
 218                          */
 219                         if (previous_target) {
 220                                 acpi_rs_dump_byte_list(ACPI_GET16
 221                                                        (previous_target),
 222                                                        target);
 223                         }
 224                         break;
 225
 226                 case ACPI_RSD_DWORDLIST:
 227                         /*
 228                          * Dword list for Extended Interrupt resources
 229                          * Note: The list length is obtained from the previous table entry
 230                          */
 231                         if (previous_target) {
 232                                 acpi_rs_dump_dword_list(*previous_target,
 233                                                         ACPI_CAST_PTR(u32,
 234                                                                       target));
 235                         }
 236                         break;
 237
 238                 case ACPI_RSD_WORDLIST:
 239                         /*
 240                          * Word list for GPIO Pin Table
 241                          * Note: The list length is obtained from the previous table entry
 242                          */
 243                         if (previous_target) {
 244                                 acpi_rs_dump_word_list(*previous_target,
 245                                                        *(ACPI_CAST_INDIRECT_PTR
 246                                                          (u16, target)));
 247                         }
 248                         break;
 249
 250                 case ACPI_RSD_ADDRESS:
 251                         /*
 252                          * Common flags for all Address resources
 253                          */
 254                         acpi_rs_dump_address_common(ACPI_CAST_PTR
 255                                                     (union acpi_resource_data,
 256                                                      target));
 257                         break;
 258
 259                 case ACPI_RSD_SOURCE:
 260                         /*
 261                          * Optional resource_source for Address resources
 262                          */
 263                         acpi_rs_dump_resource_source(ACPI_CAST_PTR
 264                                                      (struct
 265                                                                    acpi_resource_source,
 266                                                                    target));
 267                         break;
 268
 269                 default:
 270
 271                         acpi_os_printf("**** Invalid table opcode [%X] ****\n",
 272                                        table->opcode);
 273                         return;
 274                 }
 275
 276                 table++;
 277                 count--;
 278         }
 279 }
 280
 281 /*******************************************************************************
 282  *
 283  * FUNCTION:    acpi_rs_dump_resource_source
 284  *
 285  * PARAMETERS:  resource_source     - Pointer to a Resource Source struct
 286  *
 287  * RETURN:      None
 288  *
 289  * DESCRIPTION: Common routine for dumping the optional resource_source and the
 290  *              corresponding resource_source_index.
 291  *
 292  ******************************************************************************/
 293
 294 static void
 295 acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source)
 296 {
 297         ACPI_FUNCTION_ENTRY();
 298
 299         if (resource_source->index == 0xFF) {
 300                 return;
 301         }
 302
 303         acpi_rs_out_integer8("Resource Source Index", resource_source->index);
 304
 305         acpi_rs_out_string("Resource Source",
 306                            resource_source->string_ptr ?
 307                            resource_source->string_ptr : "[Not Specified]");
 308 }
 309
 310 /*******************************************************************************
 311  *
 312  * FUNCTION:    acpi_rs_dump_address_common
 313  *
 314  * PARAMETERS:  resource        - Pointer to an internal resource descriptor
 315  *
 316  * RETURN:      None
 317  *
 318  * DESCRIPTION: Dump the fields that are common to all Address resource
 319  *              descriptors
 320  *
 321  ******************************************************************************/
 322
 323 static void acpi_rs_dump_address_common(union acpi_resource_data *resource)
 324 {
 325         ACPI_FUNCTION_ENTRY();
 326
 327         /* Decode the type-specific flags */
 328
 329         switch (resource->address.resource_type) {
 330         case ACPI_MEMORY_RANGE:
 331
 332                 acpi_rs_dump_descriptor(resource, acpi_rs_dump_memory_flags);
 333                 break;
 334
 335         case ACPI_IO_RANGE:
 336
 337                 acpi_rs_dump_descriptor(resource, acpi_rs_dump_io_flags);
 338                 break;
 339
 340         case ACPI_BUS_NUMBER_RANGE:
 341
 342                 acpi_rs_out_string("Resource Type", "Bus Number Range");
 343                 break;
 344
 345         default:
 346
 347                 acpi_rs_out_integer8("Resource Type",
 348                                      (u8) resource->address.resource_type);
 349                 break;
 350         }
 351
 352         /* Decode the general flags */
 353
 354         acpi_rs_dump_descriptor(resource, acpi_rs_dump_general_flags);
 355 }
 356
 357 /*******************************************************************************
 358  *
 359  * FUNCTION:    acpi_rs_dump_resource_list
 360  *
 361  * PARAMETERS:  resource_list       - Pointer to a resource descriptor list
 362  *
 363  * RETURN:      None
 364  *
 365  * DESCRIPTION: Dispatches the structure to the correct dump routine.
 366  *
 367  ******************************************************************************/
 368
 369 void acpi_rs_dump_resource_list(struct acpi_resource *resource_list)
 370 {
 371         u32 count = 0;
 372         u32 type;
 373
 374         ACPI_FUNCTION_ENTRY();
 375
 376         /* Check if debug output enabled */
 377
 378         if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
 379                 return;
 380         }
 381
 382         /* Walk list and dump all resource descriptors (END_TAG terminates) */
 383
 384         do {
 385                 acpi_os_printf("\n[%02X] ", count);
 386                 count++;
 387
 388                 /* Validate Type before dispatch */
 389
 390                 type = resource_list->type;
 391                 if (type > ACPI_RESOURCE_TYPE_MAX) {
 392                         acpi_os_printf
 393                             ("Invalid descriptor type (%X) in resource list\n",
 394                              resource_list->type);
 395                         return;
 396                 }
 397
 398                 /* Sanity check the length. It must not be zero, or we loop forever */
 399
 400                 if (!resource_list->length) {
 401                         acpi_os_printf
 402                             ("Invalid zero length descriptor in resource list\n");
 403                         return;
 404                 }
 405
 406                 /* Dump the resource descriptor */
 407
 408                 if (type == ACPI_RESOURCE_TYPE_SERIAL_BUS) {
 409                         acpi_rs_dump_descriptor(&resource_list->data,
 410                                                 acpi_gbl_dump_serial_bus_dispatch
 411                                                 [resource_list->data.
 412                                                  common_serial_bus.type]);
 413                 } else {
 414                         acpi_rs_dump_descriptor(&resource_list->data,
 415                                                 acpi_gbl_dump_resource_dispatch
 416                                                 [type]);
 417                 }
 418
 419                 /* Point to the next resource structure */
 420
 421                 resource_list = ACPI_NEXT_RESOURCE(resource_list);
 422
 423                 /* Exit when END_TAG descriptor is reached */
 424
 425         } while (type != ACPI_RESOURCE_TYPE_END_TAG);
 426 }
 427
 428 /*******************************************************************************
 429  *
 430  * FUNCTION:    acpi_rs_dump_irq_list
 431  *
 432  * PARAMETERS:  route_table     - Pointer to the routing table to dump.
 433  *
 434  * RETURN:      None
 435  *
 436  * DESCRIPTION: Print IRQ routing table
 437  *
 438  ******************************************************************************/
 439
 440 void acpi_rs_dump_irq_list(u8 * route_table)
 441 {
 442         struct acpi_pci_routing_table *prt_element;
 443         u8 count;
 444
 445         ACPI_FUNCTION_ENTRY();
 446
 447         /* Check if debug output enabled */
 448
 449         if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
 450                 return;
 451         }
 452
 453         prt_element = ACPI_CAST_PTR(struct acpi_pci_routing_table, route_table);
 454
 455         /* Dump all table elements, Exit on zero length element */
 456
 457         for (count = 0; prt_element->length; count++) {
 458                 acpi_os_printf("\n[%02X] PCI IRQ Routing Table Package\n",
 459                                count);
 460                 acpi_rs_dump_descriptor(prt_element, acpi_rs_dump_prt);
 461
 462                 prt_element = ACPI_ADD_PTR(struct acpi_pci_routing_table,
 463                                            prt_element, prt_element->length);
 464         }
 465 }
 466
 467 /*******************************************************************************
 468  *
 469  * FUNCTION:    acpi_rs_out*
 470  *
 471  * PARAMETERS:  title       - Name of the resource field
 472  *              value       - Value of the resource field
 473  *
 474  * RETURN:      None
 475  *
 476  * DESCRIPTION: Miscellaneous helper functions to consistently format the
 477  *              output of the resource dump routines
 478  *
 479  ******************************************************************************/
 480
 481 static void acpi_rs_out_string(char *title, char *value)
 482 {
 483         acpi_os_printf("%27s : %s", title, value);
 484         if (!*value) {
 485                 acpi_os_printf("[NULL NAMESTRING]");
 486         }
 487         acpi_os_printf("\n");
 488 }
 489
 490 static void acpi_rs_out_integer8(char *title, u8 value)
 491 {
 492         acpi_os_printf("%27s : %2.2X\n", title, value);
 493 }
 494
 495 static void acpi_rs_out_integer16(char *title, u16 value)
 496 {
 497         acpi_os_printf("%27s : %4.4X\n", title, value);
 498 }
 499
 500 static void acpi_rs_out_integer32(char *title, u32 value)
 501 {
 502         acpi_os_printf("%27s : %8.8X\n", title, value);
 503 }
 504
 505 static void acpi_rs_out_integer64(char *title, u64 value)
 506 {
 507         acpi_os_printf("%27s : %8.8X%8.8X\n", title, ACPI_FORMAT_UINT64(value));
 508 }
 509
 510 static void acpi_rs_out_title(char *title)
 511 {
 512         acpi_os_printf("%27s : ", title);
 513 }
 514
 515 /*******************************************************************************
 516  *
 517  * FUNCTION:    acpi_rs_dump*List
 518  *
 519  * PARAMETERS:  length      - Number of elements in the list
 520  *              data        - Start of the list
 521  *
 522  * RETURN:      None
 523  *
 524  * DESCRIPTION: Miscellaneous functions to dump lists of raw data
 525  *
 526  ******************************************************************************/
 527
 528 static void acpi_rs_dump_byte_list(u16 length, u8 * data)
 529 {
 530         u8 i;
 531
 532         for (i = 0; i < length; i++) {
 533                 acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]);
 534         }
 535 }
 536
 537 static void acpi_rs_dump_short_byte_list(u8 length, u8 * data)
 538 {
 539         u8 i;
 540
 541         for (i = 0; i < length; i++) {
 542                 acpi_os_printf("%X ", data[i]);
 543         }
 544         acpi_os_printf("\n");
 545 }
 546
 547 static void acpi_rs_dump_dword_list(u8 length, u32 * data)
 548 {
 549         u8 i;
 550
 551         for (i = 0; i < length; i++) {
 552                 acpi_os_printf("%25s%2.2X : %8.8X\n", "Dword", i, data[i]);
 553         }
 554 }
 555
 556 static void acpi_rs_dump_word_list(u16 length, u16 *data)
 557 {
 558         u16 i;
 559
 560         for (i = 0; i < length; i++) {
 561                 acpi_os_printf("%25s%2.2X : %4.4X\n", "Word", i, data[i]);
 562         }
 563 }
 564
 565 #endif