1 /******************************************************************************
2 *
3 * Module Name: tbinstal - ACPI table installation and removal
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2011, 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.
76 ACPI_FUNCTION_TRACE (TbVerifyTable);
77
78
79 /* Map the table if necessary */
80
81 if (!TableDesc->Pointer)
82 {
83 if ((TableDesc->Flags & ACPI_TABLE_ORIGIN_MASK) ==
84 ACPI_TABLE_ORIGIN_MAPPED)
85 {
86 TableDesc->Pointer = AcpiOsMapMemory (
87 TableDesc->Address, TableDesc->Length);
88 }
89
90 if (!TableDesc->Pointer)
91 {
92 return_ACPI_STATUS (AE_NO_MEMORY);
93 }
94 }
95
96 /* FACS is the odd table, has no standard ACPI header and no checksum */
97
98 if (!ACPI_COMPARE_NAME (&TableDesc->Signature, ACPI_SIG_FACS))
99 {
100 /* Always calculate checksum, ignore bad checksum if requested */
101
102 Status = AcpiTbVerifyChecksum (TableDesc->Pointer, TableDesc->Length);
103 }
104
105 return_ACPI_STATUS (Status);
106 }
107
108
109 /*******************************************************************************
110 *
111 * FUNCTION: AcpiTbAddTable
112 *
113 * PARAMETERS: TableDesc - Table descriptor
114 * TableIndex - Where the table index is returned
115 *
116 * RETURN: Status
117 *
118 * DESCRIPTION: This function is called to add an ACPI table. It is used to
119 * dynamically load tables via the Load and LoadTable AML
120 * operators.
121 *
122 ******************************************************************************/
123
124 ACPI_STATUS
125 AcpiTbAddTable (
126 ACPI_TABLE_DESC *TableDesc,
127 UINT32 *TableIndex)
128 {
129 UINT32 i;
130 ACPI_STATUS Status = AE_OK;
131 ACPI_TABLE_HEADER *OverrideTable = NULL;
132
133
134 ACPI_FUNCTION_TRACE (TbAddTable);
135
136
137 if (!TableDesc->Pointer)
138 {
139 Status = AcpiTbVerifyTable (TableDesc);
140 if (ACPI_FAILURE (Status) || !TableDesc->Pointer)
141 {
142 return_ACPI_STATUS (Status);
143 }
144 }
145
146 /*
147 * Validate the incoming table signature.
148 *
149 * 1) Originally, we checked the table signature for "SSDT" or "PSDT".
150 * 2) We added support for OEMx tables, signature "OEM".
151 * 3) Valid tables were encountered with a null signature, so we just
152 * gave up on validating the signature, (05/2008).
153 * 4) We encountered non-AML tables such as the MADT, which caused
154 * interpreter errors and kernel faults. So now, we once again allow
155 * only "SSDT", "OEMx", and now, also a null signature. (05/2011).
156 */
157 if ((TableDesc->Pointer->Signature[0] != 0x00) &&
158 (!ACPI_COMPARE_NAME (TableDesc->Pointer->Signature, ACPI_SIG_SSDT)) &&
159 (ACPI_STRNCMP (TableDesc->Pointer->Signature, "OEM", 3)))
160 {
161 ACPI_ERROR ((AE_INFO,
162 "Table has invalid signature [%4.4s] (0x%8.8X), must be SSDT or OEMx",
163 AcpiUtValidAcpiName (*(UINT32 *) TableDesc->Pointer->Signature) ?
164 TableDesc->Pointer->Signature : "????",
165 *(UINT32 *) TableDesc->Pointer->Signature));
166
167 return_ACPI_STATUS (AE_BAD_SIGNATURE);
168 }
169
170 (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
171
172 /* Check if table is already registered */
173
174 for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
175 {
176 if (!AcpiGbl_RootTableList.Tables[i].Pointer)
177 {
178 Status = AcpiTbVerifyTable (&AcpiGbl_RootTableList.Tables[i]);
179 if (ACPI_FAILURE (Status) ||
180 !AcpiGbl_RootTableList.Tables[i].Pointer)
181 {
182 continue;
183 }
225 {
226 /* Table is still loaded, this is an error */
227
228 Status = AE_ALREADY_EXISTS;
229 goto Release;
230 }
231 else
232 {
233 /* Table was unloaded, allow it to be reloaded */
234
235 TableDesc->Pointer = AcpiGbl_RootTableList.Tables[i].Pointer;
236 TableDesc->Address = AcpiGbl_RootTableList.Tables[i].Address;
237 Status = AE_OK;
238 goto PrintHeader;
239 }
240 }
241
242 /*
243 * ACPI Table Override:
244 * Allow the host to override dynamically loaded tables.
245 */
246 Status = AcpiOsTableOverride (TableDesc->Pointer, &OverrideTable);
247 if (ACPI_SUCCESS (Status) && OverrideTable)
248 {
249 ACPI_INFO ((AE_INFO,
250 "%4.4s @ 0x%p Table override, replaced with:",
251 TableDesc->Pointer->Signature,
252 ACPI_CAST_PTR (void, TableDesc->Address)));
253
254 /* We can delete the table that was passed as a parameter */
255
256 AcpiTbDeleteTable (TableDesc);
257
258 /* Setup descriptor for the new table */
259
260 TableDesc->Address = ACPI_PTR_TO_PHYSADDR (OverrideTable);
261 TableDesc->Pointer = OverrideTable;
262 TableDesc->Length = OverrideTable->Length;
263 TableDesc->Flags = ACPI_TABLE_ORIGIN_OVERRIDE;
264 }
265
266 /* Add the table to the global root table list */
267
268 Status = AcpiTbStoreTable (TableDesc->Address, TableDesc->Pointer,
269 TableDesc->Length, TableDesc->Flags, TableIndex);
270 if (ACPI_FAILURE (Status))
271 {
272 goto Release;
273 }
274
275 PrintHeader:
276 AcpiTbPrintTableHeader (TableDesc->Address, TableDesc->Pointer);
277
278 Release:
279 (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
280 return_ACPI_STATUS (Status);
281 }
282
283
284 /*******************************************************************************
285 *
286 * FUNCTION: AcpiTbResizeRootTableList
287 *
288 * PARAMETERS: None
289 *
290 * RETURN: Status
291 *
292 * DESCRIPTION: Expand the size of global table array
293 *
294 ******************************************************************************/
295
296 ACPI_STATUS
297 AcpiTbResizeRootTableList (
298 void)
299 {
300 ACPI_TABLE_DESC *Tables;
301
302
303 ACPI_FUNCTION_TRACE (TbResizeRootTableList);
304
305
306 /* AllowResize flag is a parameter to AcpiInitializeTables */
307
308 if (!(AcpiGbl_RootTableList.Flags & ACPI_ROOT_ALLOW_RESIZE))
309 {
310 ACPI_ERROR ((AE_INFO, "Resize of Root Table Array is not allowed"));
311 return_ACPI_STATUS (AE_SUPPORT);
312 }
313
314 /* Increase the Table Array size */
315
316 Tables = ACPI_ALLOCATE_ZEROED (
317 ((ACPI_SIZE) AcpiGbl_RootTableList.MaxTableCount +
318 ACPI_ROOT_TABLE_SIZE_INCREMENT) *
319 sizeof (ACPI_TABLE_DESC));
320 if (!Tables)
321 {
322 ACPI_ERROR ((AE_INFO, "Could not allocate new root table array"));
323 return_ACPI_STATUS (AE_NO_MEMORY);
324 }
325
326 /* Copy and free the previous table array */
327
328 if (AcpiGbl_RootTableList.Tables)
329 {
330 ACPI_MEMCPY (Tables, AcpiGbl_RootTableList.Tables,
331 (ACPI_SIZE) AcpiGbl_RootTableList.MaxTableCount * sizeof (ACPI_TABLE_DESC));
332
333 if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED)
334 {
335 ACPI_FREE (AcpiGbl_RootTableList.Tables);
336 }
337 }
338
339 AcpiGbl_RootTableList.Tables = Tables;
340 AcpiGbl_RootTableList.MaxTableCount += ACPI_ROOT_TABLE_SIZE_INCREMENT;
341 AcpiGbl_RootTableList.Flags |= (UINT8) ACPI_ROOT_ORIGIN_ALLOCATED;
342
343 return_ACPI_STATUS (AE_OK);
344 }
345
346
347 /*******************************************************************************
348 *
349 * FUNCTION: AcpiTbStoreTable
350 *
351 * PARAMETERS: Address - Table address
352 * Table - Table header
353 * Length - Table length
354 * Flags - flags
355 *
356 * RETURN: Status and table index.
357 *
358 * DESCRIPTION: Add an ACPI table to the global table list
359 *
360 ******************************************************************************/
361
411 *
412 * DESCRIPTION: Delete one internal ACPI table
413 *
414 ******************************************************************************/
415
416 void
417 AcpiTbDeleteTable (
418 ACPI_TABLE_DESC *TableDesc)
419 {
420
421 /* Table must be mapped or allocated */
422
423 if (!TableDesc->Pointer)
424 {
425 return;
426 }
427
428 switch (TableDesc->Flags & ACPI_TABLE_ORIGIN_MASK)
429 {
430 case ACPI_TABLE_ORIGIN_MAPPED:
431 AcpiOsUnmapMemory (TableDesc->Pointer, TableDesc->Length);
432 break;
433
434 case ACPI_TABLE_ORIGIN_ALLOCATED:
435 ACPI_FREE (TableDesc->Pointer);
436 break;
437
438 default:
439 break;
440 }
441
442 TableDesc->Pointer = NULL;
443 }
444
445
446 /*******************************************************************************
447 *
448 * FUNCTION: AcpiTbTerminate
449 *
450 * PARAMETERS: None
451 *
452 * RETURN: None
453 *
454 * DESCRIPTION: Delete all internal ACPI tables
455 *
456 ******************************************************************************/
457
458 void
459 AcpiTbTerminate (
472 for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
473 {
474 AcpiTbDeleteTable (&AcpiGbl_RootTableList.Tables[i]);
475 }
476
477 /*
478 * Delete the root table array if allocated locally. Array cannot be
479 * mapped, so we don't need to check for that flag.
480 */
481 if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED)
482 {
483 ACPI_FREE (AcpiGbl_RootTableList.Tables);
484 }
485
486 AcpiGbl_RootTableList.Tables = NULL;
487 AcpiGbl_RootTableList.Flags = 0;
488 AcpiGbl_RootTableList.CurrentTableCount = 0;
489
490 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "ACPI Tables freed\n"));
491 (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
492 }
493
494
495 /*******************************************************************************
496 *
497 * FUNCTION: AcpiTbDeleteNamespaceByOwner
498 *
499 * PARAMETERS: TableIndex - Table index
500 *
501 * RETURN: Status
502 *
503 * DESCRIPTION: Delete all namespace objects created when this table was loaded.
504 *
505 ******************************************************************************/
506
507 ACPI_STATUS
508 AcpiTbDeleteNamespaceByOwner (
509 UINT32 TableIndex)
510 {
511 ACPI_OWNER_ID OwnerId;
711 BOOLEAN IsLoaded)
712 {
713
714 (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
715 if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount)
716 {
717 if (IsLoaded)
718 {
719 AcpiGbl_RootTableList.Tables[TableIndex].Flags |=
720 ACPI_TABLE_IS_LOADED;
721 }
722 else
723 {
724 AcpiGbl_RootTableList.Tables[TableIndex].Flags &=
725 ~ACPI_TABLE_IS_LOADED;
726 }
727 }
728
729 (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
730 }
731
|
1 /******************************************************************************
2 *
3 * Module Name: tbinstal - ACPI table installation and removal
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2013, 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.
76 ACPI_FUNCTION_TRACE (TbVerifyTable);
77
78
79 /* Map the table if necessary */
80
81 if (!TableDesc->Pointer)
82 {
83 if ((TableDesc->Flags & ACPI_TABLE_ORIGIN_MASK) ==
84 ACPI_TABLE_ORIGIN_MAPPED)
85 {
86 TableDesc->Pointer = AcpiOsMapMemory (
87 TableDesc->Address, TableDesc->Length);
88 }
89
90 if (!TableDesc->Pointer)
91 {
92 return_ACPI_STATUS (AE_NO_MEMORY);
93 }
94 }
95
96 /* Always calculate checksum, ignore bad checksum if requested */
97
98 Status = AcpiTbVerifyChecksum (TableDesc->Pointer, TableDesc->Length);
99
100 return_ACPI_STATUS (Status);
101 }
102
103
104 /*******************************************************************************
105 *
106 * FUNCTION: AcpiTbAddTable
107 *
108 * PARAMETERS: TableDesc - Table descriptor
109 * TableIndex - Where the table index is returned
110 *
111 * RETURN: Status
112 *
113 * DESCRIPTION: This function is called to add an ACPI table. It is used to
114 * dynamically load tables via the Load and LoadTable AML
115 * operators.
116 *
117 ******************************************************************************/
118
119 ACPI_STATUS
120 AcpiTbAddTable (
121 ACPI_TABLE_DESC *TableDesc,
122 UINT32 *TableIndex)
123 {
124 UINT32 i;
125 ACPI_STATUS Status = AE_OK;
126
127
128 ACPI_FUNCTION_TRACE (TbAddTable);
129
130
131 if (!TableDesc->Pointer)
132 {
133 Status = AcpiTbVerifyTable (TableDesc);
134 if (ACPI_FAILURE (Status) || !TableDesc->Pointer)
135 {
136 return_ACPI_STATUS (Status);
137 }
138 }
139
140 /*
141 * Validate the incoming table signature.
142 *
143 * 1) Originally, we checked the table signature for "SSDT" or "PSDT".
144 * 2) We added support for OEMx tables, signature "OEM".
145 * 3) Valid tables were encountered with a null signature, so we just
146 * gave up on validating the signature, (05/2008).
147 * 4) We encountered non-AML tables such as the MADT, which caused
148 * interpreter errors and kernel faults. So now, we once again allow
149 * only "SSDT", "OEMx", and now, also a null signature. (05/2011).
150 */
151 if ((TableDesc->Pointer->Signature[0] != 0x00) &&
152 (!ACPI_COMPARE_NAME (TableDesc->Pointer->Signature, ACPI_SIG_SSDT)) &&
153 (ACPI_STRNCMP (TableDesc->Pointer->Signature, "OEM", 3)))
154 {
155 ACPI_BIOS_ERROR ((AE_INFO,
156 "Table has invalid signature [%4.4s] (0x%8.8X), "
157 "must be SSDT or OEMx",
158 AcpiUtValidAcpiName (TableDesc->Pointer->Signature) ?
159 TableDesc->Pointer->Signature : "????",
160 *(UINT32 *) TableDesc->Pointer->Signature));
161
162 return_ACPI_STATUS (AE_BAD_SIGNATURE);
163 }
164
165 (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
166
167 /* Check if table is already registered */
168
169 for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
170 {
171 if (!AcpiGbl_RootTableList.Tables[i].Pointer)
172 {
173 Status = AcpiTbVerifyTable (&AcpiGbl_RootTableList.Tables[i]);
174 if (ACPI_FAILURE (Status) ||
175 !AcpiGbl_RootTableList.Tables[i].Pointer)
176 {
177 continue;
178 }
220 {
221 /* Table is still loaded, this is an error */
222
223 Status = AE_ALREADY_EXISTS;
224 goto Release;
225 }
226 else
227 {
228 /* Table was unloaded, allow it to be reloaded */
229
230 TableDesc->Pointer = AcpiGbl_RootTableList.Tables[i].Pointer;
231 TableDesc->Address = AcpiGbl_RootTableList.Tables[i].Address;
232 Status = AE_OK;
233 goto PrintHeader;
234 }
235 }
236
237 /*
238 * ACPI Table Override:
239 * Allow the host to override dynamically loaded tables.
240 * NOTE: the table is fully mapped at this point, and the mapping will
241 * be deleted by TbTableOverride if the table is actually overridden.
242 */
243 (void) AcpiTbTableOverride (TableDesc->Pointer, TableDesc);
244
245 /* Add the table to the global root table list */
246
247 Status = AcpiTbStoreTable (TableDesc->Address, TableDesc->Pointer,
248 TableDesc->Length, TableDesc->Flags, TableIndex);
249 if (ACPI_FAILURE (Status))
250 {
251 goto Release;
252 }
253
254 PrintHeader:
255 AcpiTbPrintTableHeader (TableDesc->Address, TableDesc->Pointer);
256
257 Release:
258 (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
259 return_ACPI_STATUS (Status);
260 }
261
262
263 /*******************************************************************************
264 *
265 * FUNCTION: AcpiTbTableOverride
266 *
267 * PARAMETERS: TableHeader - Header for the original table
268 * TableDesc - Table descriptor initialized for the
269 * original table. May or may not be mapped.
270 *
271 * RETURN: Pointer to the entire new table. NULL if table not overridden.
272 * If overridden, installs the new table within the input table
273 * descriptor.
274 *
275 * DESCRIPTION: Attempt table override by calling the OSL override functions.
276 * Note: If the table is overridden, then the entire new table
277 * is mapped and returned by this function.
278 *
279 ******************************************************************************/
280
281 ACPI_TABLE_HEADER *
282 AcpiTbTableOverride (
283 ACPI_TABLE_HEADER *TableHeader,
284 ACPI_TABLE_DESC *TableDesc)
285 {
286 ACPI_STATUS Status;
287 ACPI_TABLE_HEADER *NewTable = NULL;
288 ACPI_PHYSICAL_ADDRESS NewAddress = 0;
289 UINT32 NewTableLength = 0;
290 UINT8 NewFlags;
291 char *OverrideType;
292
293
294 /* (1) Attempt logical override (returns a logical address) */
295
296 Status = AcpiOsTableOverride (TableHeader, &NewTable);
297 if (ACPI_SUCCESS (Status) && NewTable)
298 {
299 NewAddress = ACPI_PTR_TO_PHYSADDR (NewTable);
300 NewTableLength = NewTable->Length;
301 NewFlags = ACPI_TABLE_ORIGIN_OVERRIDE;
302 OverrideType = "Logical";
303 goto FinishOverride;
304 }
305
306 /* (2) Attempt physical override (returns a physical address) */
307
308 Status = AcpiOsPhysicalTableOverride (TableHeader,
309 &NewAddress, &NewTableLength);
310 if (ACPI_SUCCESS (Status) && NewAddress && NewTableLength)
311 {
312 /* Map the entire new table */
313
314 NewTable = AcpiOsMapMemory (NewAddress, NewTableLength);
315 if (!NewTable)
316 {
317 ACPI_EXCEPTION ((AE_INFO, AE_NO_MEMORY,
318 "%4.4s %p Attempted physical table override failed",
319 TableHeader->Signature,
320 ACPI_CAST_PTR (void, TableDesc->Address)));
321 return (NULL);
322 }
323
324 OverrideType = "Physical";
325 NewFlags = ACPI_TABLE_ORIGIN_MAPPED;
326 goto FinishOverride;
327 }
328
329 return (NULL); /* There was no override */
330
331
332 FinishOverride:
333
334 ACPI_INFO ((AE_INFO,
335 "%4.4s %p %s table override, new table: %p",
336 TableHeader->Signature,
337 ACPI_CAST_PTR (void, TableDesc->Address),
338 OverrideType, NewTable));
339
340 /* We can now unmap/delete the original table (if fully mapped) */
341
342 AcpiTbDeleteTable (TableDesc);
343
344 /* Setup descriptor for the new table */
345
346 TableDesc->Address = NewAddress;
347 TableDesc->Pointer = NewTable;
348 TableDesc->Length = NewTableLength;
349 TableDesc->Flags = NewFlags;
350
351 return (NewTable);
352 }
353
354
355 /*******************************************************************************
356 *
357 * FUNCTION: AcpiTbResizeRootTableList
358 *
359 * PARAMETERS: None
360 *
361 * RETURN: Status
362 *
363 * DESCRIPTION: Expand the size of global table array
364 *
365 ******************************************************************************/
366
367 ACPI_STATUS
368 AcpiTbResizeRootTableList (
369 void)
370 {
371 ACPI_TABLE_DESC *Tables;
372 UINT32 TableCount;
373
374
375 ACPI_FUNCTION_TRACE (TbResizeRootTableList);
376
377
378 /* AllowResize flag is a parameter to AcpiInitializeTables */
379
380 if (!(AcpiGbl_RootTableList.Flags & ACPI_ROOT_ALLOW_RESIZE))
381 {
382 ACPI_ERROR ((AE_INFO, "Resize of Root Table Array is not allowed"));
383 return_ACPI_STATUS (AE_SUPPORT);
384 }
385
386 /* Increase the Table Array size */
387
388 if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED)
389 {
390 TableCount = AcpiGbl_RootTableList.MaxTableCount;
391 }
392 else
393 {
394 TableCount = AcpiGbl_RootTableList.CurrentTableCount;
395 }
396
397 Tables = ACPI_ALLOCATE_ZEROED (
398 ((ACPI_SIZE) TableCount + ACPI_ROOT_TABLE_SIZE_INCREMENT) *
399 sizeof (ACPI_TABLE_DESC));
400 if (!Tables)
401 {
402 ACPI_ERROR ((AE_INFO, "Could not allocate new root table array"));
403 return_ACPI_STATUS (AE_NO_MEMORY);
404 }
405
406 /* Copy and free the previous table array */
407
408 if (AcpiGbl_RootTableList.Tables)
409 {
410 ACPI_MEMCPY (Tables, AcpiGbl_RootTableList.Tables,
411 (ACPI_SIZE) TableCount * sizeof (ACPI_TABLE_DESC));
412
413 if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED)
414 {
415 ACPI_FREE (AcpiGbl_RootTableList.Tables);
416 }
417 }
418
419 AcpiGbl_RootTableList.Tables = Tables;
420 AcpiGbl_RootTableList.MaxTableCount =
421 TableCount + ACPI_ROOT_TABLE_SIZE_INCREMENT;
422 AcpiGbl_RootTableList.Flags |= ACPI_ROOT_ORIGIN_ALLOCATED;
423
424 return_ACPI_STATUS (AE_OK);
425 }
426
427
428 /*******************************************************************************
429 *
430 * FUNCTION: AcpiTbStoreTable
431 *
432 * PARAMETERS: Address - Table address
433 * Table - Table header
434 * Length - Table length
435 * Flags - flags
436 *
437 * RETURN: Status and table index.
438 *
439 * DESCRIPTION: Add an ACPI table to the global table list
440 *
441 ******************************************************************************/
442
492 *
493 * DESCRIPTION: Delete one internal ACPI table
494 *
495 ******************************************************************************/
496
497 void
498 AcpiTbDeleteTable (
499 ACPI_TABLE_DESC *TableDesc)
500 {
501
502 /* Table must be mapped or allocated */
503
504 if (!TableDesc->Pointer)
505 {
506 return;
507 }
508
509 switch (TableDesc->Flags & ACPI_TABLE_ORIGIN_MASK)
510 {
511 case ACPI_TABLE_ORIGIN_MAPPED:
512
513 AcpiOsUnmapMemory (TableDesc->Pointer, TableDesc->Length);
514 break;
515
516 case ACPI_TABLE_ORIGIN_ALLOCATED:
517
518 ACPI_FREE (TableDesc->Pointer);
519 break;
520
521 /* Not mapped or allocated, there is nothing we can do */
522
523 default:
524
525 return;
526 }
527
528 TableDesc->Pointer = NULL;
529 }
530
531
532 /*******************************************************************************
533 *
534 * FUNCTION: AcpiTbTerminate
535 *
536 * PARAMETERS: None
537 *
538 * RETURN: None
539 *
540 * DESCRIPTION: Delete all internal ACPI tables
541 *
542 ******************************************************************************/
543
544 void
545 AcpiTbTerminate (
558 for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
559 {
560 AcpiTbDeleteTable (&AcpiGbl_RootTableList.Tables[i]);
561 }
562
563 /*
564 * Delete the root table array if allocated locally. Array cannot be
565 * mapped, so we don't need to check for that flag.
566 */
567 if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED)
568 {
569 ACPI_FREE (AcpiGbl_RootTableList.Tables);
570 }
571
572 AcpiGbl_RootTableList.Tables = NULL;
573 AcpiGbl_RootTableList.Flags = 0;
574 AcpiGbl_RootTableList.CurrentTableCount = 0;
575
576 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "ACPI Tables freed\n"));
577 (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
578
579 return_VOID;
580 }
581
582
583 /*******************************************************************************
584 *
585 * FUNCTION: AcpiTbDeleteNamespaceByOwner
586 *
587 * PARAMETERS: TableIndex - Table index
588 *
589 * RETURN: Status
590 *
591 * DESCRIPTION: Delete all namespace objects created when this table was loaded.
592 *
593 ******************************************************************************/
594
595 ACPI_STATUS
596 AcpiTbDeleteNamespaceByOwner (
597 UINT32 TableIndex)
598 {
599 ACPI_OWNER_ID OwnerId;
799 BOOLEAN IsLoaded)
800 {
801
802 (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
803 if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount)
804 {
805 if (IsLoaded)
806 {
807 AcpiGbl_RootTableList.Tables[TableIndex].Flags |=
808 ACPI_TABLE_IS_LOADED;
809 }
810 else
811 {
812 AcpiGbl_RootTableList.Tables[TableIndex].Flags &=
813 ~ACPI_TABLE_IS_LOADED;
814 }
815 }
816
817 (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
818 }
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