Commit | Line | Data |
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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: tbinstal - ACPI table installation and removal | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
77848130 | 8 | * Copyright (C) 2000 - 2012, Intel Corp. |
1da177e4 LT |
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 | ||
1da177e4 | 44 | #include <acpi/acpi.h> |
e2f7a777 LB |
45 | #include "accommon.h" |
46 | #include "acnamesp.h" | |
47 | #include "actables.h" | |
1da177e4 | 48 | |
1da177e4 | 49 | #define _COMPONENT ACPI_TABLES |
4be44fcd | 50 | ACPI_MODULE_NAME("tbinstal") |
1da177e4 | 51 | |
f3d2e786 | 52 | /****************************************************************************** |
1da177e4 | 53 | * |
f3d2e786 | 54 | * FUNCTION: acpi_tb_verify_table |
1da177e4 | 55 | * |
f3d2e786 | 56 | * PARAMETERS: table_desc - table |
1da177e4 LT |
57 | * |
58 | * RETURN: Status | |
59 | * | |
f3d2e786 | 60 | * DESCRIPTION: this function is called to verify and map table |
1da177e4 | 61 | * |
f3d2e786 BM |
62 | *****************************************************************************/ |
63 | acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc) | |
1da177e4 | 64 | { |
428f2112 | 65 | acpi_status status = AE_OK; |
1da177e4 | 66 | |
f3d2e786 | 67 | ACPI_FUNCTION_TRACE(tb_verify_table); |
1da177e4 | 68 | |
f3d2e786 | 69 | /* Map the table if necessary */ |
44f6c012 | 70 | |
f3d2e786 | 71 | if (!table_desc->pointer) { |
428f2112 AS |
72 | if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) == |
73 | ACPI_TABLE_ORIGIN_MAPPED) { | |
74 | table_desc->pointer = | |
75 | acpi_os_map_memory(table_desc->address, | |
76 | table_desc->length); | |
77 | } | |
f3d2e786 BM |
78 | if (!table_desc->pointer) { |
79 | return_ACPI_STATUS(AE_NO_MEMORY); | |
1da177e4 | 80 | } |
f3d2e786 | 81 | } |
1da177e4 | 82 | |
f3d2e786 | 83 | /* FACS is the odd table, has no standard ACPI header and no checksum */ |
52fc0b02 | 84 | |
428f2112 | 85 | if (!ACPI_COMPARE_NAME(&table_desc->signature, ACPI_SIG_FACS)) { |
1da177e4 | 86 | |
428f2112 AS |
87 | /* Always calculate checksum, ignore bad checksum if requested */ |
88 | ||
89 | status = | |
90 | acpi_tb_verify_checksum(table_desc->pointer, | |
91 | table_desc->length); | |
92 | } | |
1da177e4 | 93 | |
c5fc42ac | 94 | return_ACPI_STATUS(status); |
1da177e4 LT |
95 | } |
96 | ||
1da177e4 LT |
97 | /******************************************************************************* |
98 | * | |
f3d2e786 | 99 | * FUNCTION: acpi_tb_add_table |
1da177e4 | 100 | * |
428f2112 | 101 | * PARAMETERS: table_desc - Table descriptor |
f3d2e786 | 102 | * table_index - Where the table index is returned |
1da177e4 LT |
103 | * |
104 | * RETURN: Status | |
105 | * | |
d3ccaff8 BM |
106 | * DESCRIPTION: This function is called to add an ACPI table. It is used to |
107 | * dynamically load tables via the Load and load_table AML | |
108 | * operators. | |
1da177e4 LT |
109 | * |
110 | ******************************************************************************/ | |
111 | ||
f3d2e786 | 112 | acpi_status |
67a119f9 | 113 | acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index) |
1da177e4 | 114 | { |
67a119f9 | 115 | u32 i; |
f3d2e786 | 116 | acpi_status status = AE_OK; |
d3ccaff8 | 117 | struct acpi_table_header *override_table = NULL; |
1da177e4 | 118 | |
f3d2e786 | 119 | ACPI_FUNCTION_TRACE(tb_add_table); |
1da177e4 | 120 | |
428f2112 AS |
121 | if (!table_desc->pointer) { |
122 | status = acpi_tb_verify_table(table_desc); | |
123 | if (ACPI_FAILURE(status) || !table_desc->pointer) { | |
124 | return_ACPI_STATUS(status); | |
125 | } | |
126 | } | |
127 | ||
bc45b1d3 | 128 | /* |
c8cefe30 BM |
129 | * Validate the incoming table signature. |
130 | * | |
131 | * 1) Originally, we checked the table signature for "SSDT" or "PSDT". | |
132 | * 2) We added support for OEMx tables, signature "OEM". | |
133 | * 3) Valid tables were encountered with a null signature, so we just | |
134 | * gave up on validating the signature, (05/2008). | |
135 | * 4) We encountered non-AML tables such as the MADT, which caused | |
136 | * interpreter errors and kernel faults. So now, we once again allow | |
137 | * only "SSDT", "OEMx", and now, also a null signature. (05/2011). | |
bc45b1d3 | 138 | */ |
c8cefe30 BM |
139 | if ((table_desc->pointer->signature[0] != 0x00) && |
140 | (!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_SSDT)) | |
141 | && (ACPI_STRNCMP(table_desc->pointer->signature, "OEM", 3))) { | |
142 | ACPI_ERROR((AE_INFO, | |
143 | "Table has invalid signature [%4.4s] (0x%8.8X), must be SSDT or OEMx", | |
144 | acpi_ut_valid_acpi_name(*(u32 *)table_desc-> | |
145 | pointer-> | |
146 | signature) ? table_desc-> | |
147 | pointer->signature : "????", | |
148 | *(u32 *)table_desc->pointer->signature)); | |
149 | ||
150 | return_ACPI_STATUS(AE_BAD_SIGNATURE); | |
151 | } | |
428f2112 | 152 | |
f3d2e786 | 153 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
1da177e4 | 154 | |
f3d2e786 BM |
155 | /* Check if table is already registered */ |
156 | ||
b9ee2043 | 157 | for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) { |
f3d2e786 BM |
158 | if (!acpi_gbl_root_table_list.tables[i].pointer) { |
159 | status = | |
160 | acpi_tb_verify_table(&acpi_gbl_root_table_list. | |
161 | tables[i]); | |
162 | if (ACPI_FAILURE(status) | |
163 | || !acpi_gbl_root_table_list.tables[i].pointer) { | |
164 | continue; | |
165 | } | |
166 | } | |
167 | ||
a6f30539 BM |
168 | /* |
169 | * Check for a table match on the entire table length, | |
170 | * not just the header. | |
171 | */ | |
172 | if (table_desc->length != | |
173 | acpi_gbl_root_table_list.tables[i].length) { | |
174 | continue; | |
175 | } | |
e56f5617 | 176 | |
428f2112 AS |
177 | if (ACPI_MEMCMP(table_desc->pointer, |
178 | acpi_gbl_root_table_list.tables[i].pointer, | |
a6f30539 | 179 | acpi_gbl_root_table_list.tables[i].length)) { |
f3d2e786 BM |
180 | continue; |
181 | } | |
182 | ||
e56f5617 BM |
183 | /* |
184 | * Note: the current mechanism does not unregister a table if it is | |
185 | * dynamically unloaded. The related namespace entries are deleted, | |
186 | * but the table remains in the root table list. | |
187 | * | |
188 | * The assumption here is that the number of different tables that | |
189 | * will be loaded is actually small, and there is minimal overhead | |
190 | * in just keeping the table in case it is needed again. | |
191 | * | |
192 | * If this assumption changes in the future (perhaps on large | |
193 | * machines with many table load/unload operations), tables will | |
194 | * need to be unregistered when they are unloaded, and slots in the | |
195 | * root table list should be reused when empty. | |
196 | */ | |
197 | ||
198 | /* | |
199 | * Table is already registered. | |
200 | * We can delete the table that was passed as a parameter. | |
201 | */ | |
428f2112 | 202 | acpi_tb_delete_table(table_desc); |
f3d2e786 | 203 | *table_index = i; |
e56f5617 BM |
204 | |
205 | if (acpi_gbl_root_table_list.tables[i]. | |
206 | flags & ACPI_TABLE_IS_LOADED) { | |
207 | ||
208 | /* Table is still loaded, this is an error */ | |
209 | ||
210 | status = AE_ALREADY_EXISTS; | |
211 | goto release; | |
212 | } else { | |
213 | /* Table was unloaded, allow it to be reloaded */ | |
214 | ||
215 | table_desc->pointer = | |
216 | acpi_gbl_root_table_list.tables[i].pointer; | |
217 | table_desc->address = | |
218 | acpi_gbl_root_table_list.tables[i].address; | |
219 | status = AE_OK; | |
220 | goto print_header; | |
221 | } | |
1da177e4 LT |
222 | } |
223 | ||
d3ccaff8 BM |
224 | /* |
225 | * ACPI Table Override: | |
226 | * Allow the host to override dynamically loaded tables. | |
227 | */ | |
228 | status = acpi_os_table_override(table_desc->pointer, &override_table); | |
229 | if (ACPI_SUCCESS(status) && override_table) { | |
230 | ACPI_INFO((AE_INFO, | |
231 | "%4.4s @ 0x%p Table override, replaced with:", | |
232 | table_desc->pointer->signature, | |
233 | ACPI_CAST_PTR(void, table_desc->address))); | |
234 | ||
235 | /* We can delete the table that was passed as a parameter */ | |
236 | ||
237 | acpi_tb_delete_table(table_desc); | |
238 | ||
239 | /* Setup descriptor for the new table */ | |
240 | ||
241 | table_desc->address = ACPI_PTR_TO_PHYSADDR(override_table); | |
242 | table_desc->pointer = override_table; | |
243 | table_desc->length = override_table->length; | |
244 | table_desc->flags = ACPI_TABLE_ORIGIN_OVERRIDE; | |
245 | } | |
246 | ||
e56f5617 BM |
247 | /* Add the table to the global root table list */ |
248 | ||
428f2112 AS |
249 | status = acpi_tb_store_table(table_desc->address, table_desc->pointer, |
250 | table_desc->length, table_desc->flags, | |
251 | table_index); | |
4be44fcd | 252 | if (ACPI_FAILURE(status)) { |
f3d2e786 | 253 | goto release; |
0c9938cc RM |
254 | } |
255 | ||
e56f5617 | 256 | print_header: |
428f2112 | 257 | acpi_tb_print_table_header(table_desc->address, table_desc->pointer); |
1da177e4 | 258 | |
f3d2e786 | 259 | release: |
4be44fcd LB |
260 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
261 | return_ACPI_STATUS(status); | |
1da177e4 LT |
262 | } |
263 | ||
1da177e4 LT |
264 | /******************************************************************************* |
265 | * | |
f3d2e786 | 266 | * FUNCTION: acpi_tb_resize_root_table_list |
1da177e4 | 267 | * |
f3d2e786 | 268 | * PARAMETERS: None |
1da177e4 LT |
269 | * |
270 | * RETURN: Status | |
271 | * | |
f3d2e786 | 272 | * DESCRIPTION: Expand the size of global table array |
1da177e4 LT |
273 | * |
274 | ******************************************************************************/ | |
275 | ||
f3d2e786 | 276 | acpi_status acpi_tb_resize_root_table_list(void) |
1da177e4 | 277 | { |
f3d2e786 | 278 | struct acpi_table_desc *tables; |
1da177e4 | 279 | |
f3d2e786 | 280 | ACPI_FUNCTION_TRACE(tb_resize_root_table_list); |
1da177e4 | 281 | |
f3d2e786 | 282 | /* allow_resize flag is a parameter to acpi_initialize_tables */ |
1da177e4 | 283 | |
c5fc42ac | 284 | if (!(acpi_gbl_root_table_list.flags & ACPI_ROOT_ALLOW_RESIZE)) { |
f3d2e786 BM |
285 | ACPI_ERROR((AE_INFO, |
286 | "Resize of Root Table Array is not allowed")); | |
287 | return_ACPI_STATUS(AE_SUPPORT); | |
1da177e4 LT |
288 | } |
289 | ||
f3d2e786 BM |
290 | /* Increase the Table Array size */ |
291 | ||
67a119f9 | 292 | tables = ACPI_ALLOCATE_ZEROED(((acpi_size) acpi_gbl_root_table_list. |
b9ee2043 | 293 | max_table_count + |
ec41f193 BM |
294 | ACPI_ROOT_TABLE_SIZE_INCREMENT) * |
295 | sizeof(struct acpi_table_desc)); | |
f3d2e786 BM |
296 | if (!tables) { |
297 | ACPI_ERROR((AE_INFO, | |
298 | "Could not allocate new root table array")); | |
299 | return_ACPI_STATUS(AE_NO_MEMORY); | |
1da177e4 LT |
300 | } |
301 | ||
f3d2e786 BM |
302 | /* Copy and free the previous table array */ |
303 | ||
304 | if (acpi_gbl_root_table_list.tables) { | |
305 | ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, | |
b9ee2043 BM |
306 | (acpi_size) acpi_gbl_root_table_list. |
307 | max_table_count * sizeof(struct acpi_table_desc)); | |
f3d2e786 | 308 | |
c5fc42ac | 309 | if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { |
f3d2e786 BM |
310 | ACPI_FREE(acpi_gbl_root_table_list.tables); |
311 | } | |
1da177e4 LT |
312 | } |
313 | ||
f3d2e786 | 314 | acpi_gbl_root_table_list.tables = tables; |
b9ee2043 BM |
315 | acpi_gbl_root_table_list.max_table_count += |
316 | ACPI_ROOT_TABLE_SIZE_INCREMENT; | |
317 | acpi_gbl_root_table_list.flags |= (u8)ACPI_ROOT_ORIGIN_ALLOCATED; | |
1da177e4 | 318 | |
f3d2e786 | 319 | return_ACPI_STATUS(AE_OK); |
1da177e4 LT |
320 | } |
321 | ||
1da177e4 LT |
322 | /******************************************************************************* |
323 | * | |
f3d2e786 | 324 | * FUNCTION: acpi_tb_store_table |
1da177e4 | 325 | * |
f3d2e786 BM |
326 | * PARAMETERS: Address - Table address |
327 | * Table - Table header | |
328 | * Length - Table length | |
329 | * Flags - flags | |
1da177e4 | 330 | * |
f3d2e786 | 331 | * RETURN: Status and table index. |
1da177e4 | 332 | * |
f3d2e786 | 333 | * DESCRIPTION: Add an ACPI table to the global table list |
1da177e4 LT |
334 | * |
335 | ******************************************************************************/ | |
336 | ||
337 | acpi_status | |
f3d2e786 BM |
338 | acpi_tb_store_table(acpi_physical_address address, |
339 | struct acpi_table_header *table, | |
67a119f9 | 340 | u32 length, u8 flags, u32 *table_index) |
1da177e4 | 341 | { |
b9ee2043 BM |
342 | acpi_status status; |
343 | struct acpi_table_desc *new_table; | |
1da177e4 | 344 | |
f3d2e786 | 345 | /* Ensure that there is room for the table in the Root Table List */ |
f9f4601f | 346 | |
b9ee2043 BM |
347 | if (acpi_gbl_root_table_list.current_table_count >= |
348 | acpi_gbl_root_table_list.max_table_count) { | |
f3d2e786 BM |
349 | status = acpi_tb_resize_root_table_list(); |
350 | if (ACPI_FAILURE(status)) { | |
351 | return (status); | |
352 | } | |
f9f4601f RM |
353 | } |
354 | ||
b9ee2043 BM |
355 | new_table = |
356 | &acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list. | |
357 | current_table_count]; | |
358 | ||
f3d2e786 BM |
359 | /* Initialize added table */ |
360 | ||
b9ee2043 BM |
361 | new_table->address = address; |
362 | new_table->pointer = table; | |
363 | new_table->length = length; | |
364 | new_table->owner_id = 0; | |
365 | new_table->flags = flags; | |
366 | ||
367 | ACPI_MOVE_32_TO_32(&new_table->signature, table->signature); | |
368 | ||
369 | *table_index = acpi_gbl_root_table_list.current_table_count; | |
370 | acpi_gbl_root_table_list.current_table_count++; | |
371 | return (AE_OK); | |
f3d2e786 | 372 | } |
1da177e4 | 373 | |
f3d2e786 BM |
374 | /******************************************************************************* |
375 | * | |
376 | * FUNCTION: acpi_tb_delete_table | |
377 | * | |
378 | * PARAMETERS: table_index - Table index | |
379 | * | |
380 | * RETURN: None | |
381 | * | |
382 | * DESCRIPTION: Delete one internal ACPI table | |
383 | * | |
384 | ******************************************************************************/ | |
1da177e4 | 385 | |
428f2112 | 386 | void acpi_tb_delete_table(struct acpi_table_desc *table_desc) |
f3d2e786 | 387 | { |
f3d2e786 | 388 | /* Table must be mapped or allocated */ |
f3d2e786 BM |
389 | if (!table_desc->pointer) { |
390 | return; | |
1da177e4 | 391 | } |
428f2112 AS |
392 | switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) { |
393 | case ACPI_TABLE_ORIGIN_MAPPED: | |
394 | acpi_os_unmap_memory(table_desc->pointer, table_desc->length); | |
395 | break; | |
396 | case ACPI_TABLE_ORIGIN_ALLOCATED: | |
f3d2e786 | 397 | ACPI_FREE(table_desc->pointer); |
428f2112 AS |
398 | break; |
399 | default:; | |
1da177e4 LT |
400 | } |
401 | ||
f3d2e786 | 402 | table_desc->pointer = NULL; |
1da177e4 LT |
403 | } |
404 | ||
1da177e4 LT |
405 | /******************************************************************************* |
406 | * | |
f3d2e786 | 407 | * FUNCTION: acpi_tb_terminate |
1da177e4 | 408 | * |
f3d2e786 | 409 | * PARAMETERS: None |
1da177e4 | 410 | * |
f3d2e786 | 411 | * RETURN: None |
1da177e4 LT |
412 | * |
413 | * DESCRIPTION: Delete all internal ACPI tables | |
414 | * | |
415 | ******************************************************************************/ | |
416 | ||
f3d2e786 | 417 | void acpi_tb_terminate(void) |
1da177e4 | 418 | { |
67a119f9 | 419 | u32 i; |
f3d2e786 BM |
420 | |
421 | ACPI_FUNCTION_TRACE(tb_terminate); | |
422 | ||
423 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); | |
424 | ||
425 | /* Delete the individual tables */ | |
426 | ||
b9ee2043 | 427 | for (i = 0; i < acpi_gbl_root_table_list.current_table_count; i++) { |
428f2112 | 428 | acpi_tb_delete_table(&acpi_gbl_root_table_list.tables[i]); |
f3d2e786 | 429 | } |
1da177e4 LT |
430 | |
431 | /* | |
f3d2e786 BM |
432 | * Delete the root table array if allocated locally. Array cannot be |
433 | * mapped, so we don't need to check for that flag. | |
1da177e4 | 434 | */ |
c5fc42ac | 435 | if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { |
f3d2e786 | 436 | ACPI_FREE(acpi_gbl_root_table_list.tables); |
1da177e4 | 437 | } |
f3d2e786 BM |
438 | |
439 | acpi_gbl_root_table_list.tables = NULL; | |
440 | acpi_gbl_root_table_list.flags = 0; | |
b9ee2043 | 441 | acpi_gbl_root_table_list.current_table_count = 0; |
f3d2e786 BM |
442 | |
443 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n")); | |
444 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); | |
1da177e4 LT |
445 | } |
446 | ||
1da177e4 LT |
447 | /******************************************************************************* |
448 | * | |
f3d2e786 | 449 | * FUNCTION: acpi_tb_delete_namespace_by_owner |
1da177e4 | 450 | * |
f3d2e786 | 451 | * PARAMETERS: table_index - Table index |
1da177e4 | 452 | * |
8a335a23 | 453 | * RETURN: Status |
1da177e4 | 454 | * |
f3d2e786 | 455 | * DESCRIPTION: Delete all namespace objects created when this table was loaded. |
1da177e4 LT |
456 | * |
457 | ******************************************************************************/ | |
458 | ||
8a335a23 | 459 | acpi_status acpi_tb_delete_namespace_by_owner(u32 table_index) |
1da177e4 | 460 | { |
f3d2e786 | 461 | acpi_owner_id owner_id; |
8a335a23 BM |
462 | acpi_status status; |
463 | ||
464 | ACPI_FUNCTION_TRACE(tb_delete_namespace_by_owner); | |
465 | ||
466 | status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES); | |
467 | if (ACPI_FAILURE(status)) { | |
468 | return_ACPI_STATUS(status); | |
469 | } | |
470 | ||
b9ee2043 | 471 | if (table_index >= acpi_gbl_root_table_list.current_table_count) { |
8a335a23 BM |
472 | |
473 | /* The table index does not exist */ | |
1da177e4 | 474 | |
f3d2e786 | 475 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
8a335a23 | 476 | return_ACPI_STATUS(AE_NOT_EXIST); |
1da177e4 LT |
477 | } |
478 | ||
8a335a23 BM |
479 | /* Get the owner ID for this table, used to delete namespace nodes */ |
480 | ||
481 | owner_id = acpi_gbl_root_table_list.tables[table_index].owner_id; | |
f3d2e786 | 482 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
8a335a23 BM |
483 | |
484 | /* | |
485 | * Need to acquire the namespace writer lock to prevent interference | |
486 | * with any concurrent namespace walks. The interpreter must be | |
487 | * released during the deletion since the acquisition of the deletion | |
488 | * lock may block, and also since the execution of a namespace walk | |
489 | * must be allowed to use the interpreter. | |
490 | */ | |
e4c1ebfc | 491 | (void)acpi_ut_release_mutex(ACPI_MTX_INTERPRETER); |
8a335a23 BM |
492 | status = acpi_ut_acquire_write_lock(&acpi_gbl_namespace_rw_lock); |
493 | ||
f3d2e786 | 494 | acpi_ns_delete_namespace_by_owner(owner_id); |
8a335a23 BM |
495 | if (ACPI_FAILURE(status)) { |
496 | return_ACPI_STATUS(status); | |
497 | } | |
498 | ||
499 | acpi_ut_release_write_lock(&acpi_gbl_namespace_rw_lock); | |
500 | ||
501 | status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER); | |
502 | return_ACPI_STATUS(status); | |
f3d2e786 | 503 | } |
1da177e4 | 504 | |
f3d2e786 BM |
505 | /******************************************************************************* |
506 | * | |
507 | * FUNCTION: acpi_tb_allocate_owner_id | |
508 | * | |
509 | * PARAMETERS: table_index - Table index | |
510 | * | |
511 | * RETURN: Status | |
512 | * | |
513 | * DESCRIPTION: Allocates owner_id in table_desc | |
514 | * | |
515 | ******************************************************************************/ | |
1da177e4 | 516 | |
67a119f9 | 517 | acpi_status acpi_tb_allocate_owner_id(u32 table_index) |
f3d2e786 BM |
518 | { |
519 | acpi_status status = AE_BAD_PARAMETER; | |
1da177e4 | 520 | |
f3d2e786 | 521 | ACPI_FUNCTION_TRACE(tb_allocate_owner_id); |
1da177e4 | 522 | |
f3d2e786 | 523 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
b9ee2043 | 524 | if (table_index < acpi_gbl_root_table_list.current_table_count) { |
f3d2e786 BM |
525 | status = acpi_ut_allocate_owner_id |
526 | (&(acpi_gbl_root_table_list.tables[table_index].owner_id)); | |
1da177e4 LT |
527 | } |
528 | ||
4be44fcd | 529 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
f3d2e786 | 530 | return_ACPI_STATUS(status); |
1da177e4 LT |
531 | } |
532 | ||
1da177e4 LT |
533 | /******************************************************************************* |
534 | * | |
f3d2e786 | 535 | * FUNCTION: acpi_tb_release_owner_id |
1da177e4 | 536 | * |
f3d2e786 | 537 | * PARAMETERS: table_index - Table index |
1da177e4 | 538 | * |
f3d2e786 | 539 | * RETURN: Status |
1da177e4 | 540 | * |
f3d2e786 | 541 | * DESCRIPTION: Releases owner_id in table_desc |
1da177e4 LT |
542 | * |
543 | ******************************************************************************/ | |
544 | ||
67a119f9 | 545 | acpi_status acpi_tb_release_owner_id(u32 table_index) |
1da177e4 | 546 | { |
f3d2e786 | 547 | acpi_status status = AE_BAD_PARAMETER; |
1da177e4 | 548 | |
f3d2e786 | 549 | ACPI_FUNCTION_TRACE(tb_release_owner_id); |
1da177e4 | 550 | |
f3d2e786 | 551 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
b9ee2043 | 552 | if (table_index < acpi_gbl_root_table_list.current_table_count) { |
f3d2e786 BM |
553 | acpi_ut_release_owner_id(& |
554 | (acpi_gbl_root_table_list. | |
555 | tables[table_index].owner_id)); | |
556 | status = AE_OK; | |
1da177e4 LT |
557 | } |
558 | ||
f3d2e786 BM |
559 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
560 | return_ACPI_STATUS(status); | |
1da177e4 LT |
561 | } |
562 | ||
1da177e4 LT |
563 | /******************************************************************************* |
564 | * | |
f3d2e786 | 565 | * FUNCTION: acpi_tb_get_owner_id |
1da177e4 | 566 | * |
f3d2e786 BM |
567 | * PARAMETERS: table_index - Table index |
568 | * owner_id - Where the table owner_id is returned | |
1da177e4 | 569 | * |
f3d2e786 | 570 | * RETURN: Status |
1da177e4 | 571 | * |
f3d2e786 | 572 | * DESCRIPTION: returns owner_id for the ACPI table |
1da177e4 LT |
573 | * |
574 | ******************************************************************************/ | |
575 | ||
67a119f9 | 576 | acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id) |
1da177e4 | 577 | { |
f3d2e786 | 578 | acpi_status status = AE_BAD_PARAMETER; |
1da177e4 | 579 | |
f3d2e786 | 580 | ACPI_FUNCTION_TRACE(tb_get_owner_id); |
1da177e4 | 581 | |
f3d2e786 | 582 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
b9ee2043 | 583 | if (table_index < acpi_gbl_root_table_list.current_table_count) { |
f3d2e786 BM |
584 | *owner_id = |
585 | acpi_gbl_root_table_list.tables[table_index].owner_id; | |
586 | status = AE_OK; | |
1da177e4 LT |
587 | } |
588 | ||
f3d2e786 BM |
589 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
590 | return_ACPI_STATUS(status); | |
591 | } | |
1da177e4 | 592 | |
f3d2e786 BM |
593 | /******************************************************************************* |
594 | * | |
595 | * FUNCTION: acpi_tb_is_table_loaded | |
596 | * | |
597 | * PARAMETERS: table_index - Table index | |
598 | * | |
599 | * RETURN: Table Loaded Flag | |
600 | * | |
601 | ******************************************************************************/ | |
1da177e4 | 602 | |
67a119f9 | 603 | u8 acpi_tb_is_table_loaded(u32 table_index) |
f3d2e786 BM |
604 | { |
605 | u8 is_loaded = FALSE; | |
1da177e4 | 606 | |
f3d2e786 | 607 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
b9ee2043 | 608 | if (table_index < acpi_gbl_root_table_list.current_table_count) { |
f3d2e786 | 609 | is_loaded = (u8) |
ec41f193 BM |
610 | (acpi_gbl_root_table_list.tables[table_index].flags & |
611 | ACPI_TABLE_IS_LOADED); | |
1da177e4 LT |
612 | } |
613 | ||
f3d2e786 BM |
614 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
615 | return (is_loaded); | |
616 | } | |
f6dd9221 | 617 | |
f3d2e786 BM |
618 | /******************************************************************************* |
619 | * | |
620 | * FUNCTION: acpi_tb_set_table_loaded_flag | |
621 | * | |
622 | * PARAMETERS: table_index - Table index | |
623 | * is_loaded - TRUE if table is loaded, FALSE otherwise | |
624 | * | |
625 | * RETURN: None | |
626 | * | |
627 | * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE. | |
628 | * | |
629 | ******************************************************************************/ | |
1da177e4 | 630 | |
67a119f9 | 631 | void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded) |
f3d2e786 | 632 | { |
1da177e4 | 633 | |
f3d2e786 | 634 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
b9ee2043 | 635 | if (table_index < acpi_gbl_root_table_list.current_table_count) { |
f3d2e786 BM |
636 | if (is_loaded) { |
637 | acpi_gbl_root_table_list.tables[table_index].flags |= | |
c5fc42ac | 638 | ACPI_TABLE_IS_LOADED; |
f3d2e786 BM |
639 | } else { |
640 | acpi_gbl_root_table_list.tables[table_index].flags &= | |
c5fc42ac | 641 | ~ACPI_TABLE_IS_LOADED; |
f3d2e786 BM |
642 | } |
643 | } | |
1da177e4 | 644 | |
f3d2e786 | 645 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
1da177e4 | 646 | } |