Commit | Line | Data |
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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: tbinstal - ACPI table installation and removal | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
6c9deb72 | 8 | * Copyright (C) 2000 - 2007, R. Byron Moore |
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> |
f3d2e786 | 45 | #include <acpi/acnamesp.h> |
1da177e4 LT |
46 | #include <acpi/actables.h> |
47 | ||
1da177e4 | 48 | #define _COMPONENT ACPI_TABLES |
4be44fcd | 49 | ACPI_MODULE_NAME("tbinstal") |
1da177e4 | 50 | |
f3d2e786 | 51 | /****************************************************************************** |
1da177e4 | 52 | * |
f3d2e786 | 53 | * FUNCTION: acpi_tb_verify_table |
1da177e4 | 54 | * |
f3d2e786 | 55 | * PARAMETERS: table_desc - table |
1da177e4 LT |
56 | * |
57 | * RETURN: Status | |
58 | * | |
f3d2e786 | 59 | * DESCRIPTION: this function is called to verify and map table |
1da177e4 | 60 | * |
f3d2e786 BM |
61 | *****************************************************************************/ |
62 | acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc) | |
1da177e4 | 63 | { |
428f2112 | 64 | acpi_status status = AE_OK; |
1da177e4 | 65 | |
f3d2e786 | 66 | ACPI_FUNCTION_TRACE(tb_verify_table); |
1da177e4 | 67 | |
f3d2e786 | 68 | /* Map the table if necessary */ |
44f6c012 | 69 | |
f3d2e786 | 70 | if (!table_desc->pointer) { |
428f2112 AS |
71 | if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) == |
72 | ACPI_TABLE_ORIGIN_MAPPED) { | |
73 | table_desc->pointer = | |
74 | acpi_os_map_memory(table_desc->address, | |
75 | table_desc->length); | |
76 | } | |
f3d2e786 BM |
77 | if (!table_desc->pointer) { |
78 | return_ACPI_STATUS(AE_NO_MEMORY); | |
1da177e4 | 79 | } |
f3d2e786 | 80 | } |
1da177e4 | 81 | |
f3d2e786 | 82 | /* FACS is the odd table, has no standard ACPI header and no checksum */ |
52fc0b02 | 83 | |
428f2112 | 84 | if (!ACPI_COMPARE_NAME(&table_desc->signature, ACPI_SIG_FACS)) { |
1da177e4 | 85 | |
428f2112 AS |
86 | /* Always calculate checksum, ignore bad checksum if requested */ |
87 | ||
88 | status = | |
89 | acpi_tb_verify_checksum(table_desc->pointer, | |
90 | table_desc->length); | |
91 | } | |
1da177e4 | 92 | |
c5fc42ac | 93 | return_ACPI_STATUS(status); |
1da177e4 LT |
94 | } |
95 | ||
1da177e4 LT |
96 | /******************************************************************************* |
97 | * | |
f3d2e786 | 98 | * FUNCTION: acpi_tb_add_table |
1da177e4 | 99 | * |
428f2112 | 100 | * PARAMETERS: table_desc - Table descriptor |
f3d2e786 | 101 | * table_index - Where the table index is returned |
1da177e4 LT |
102 | * |
103 | * RETURN: Status | |
104 | * | |
f3d2e786 | 105 | * DESCRIPTION: This function is called to add the ACPI table |
1da177e4 LT |
106 | * |
107 | ******************************************************************************/ | |
108 | ||
f3d2e786 | 109 | acpi_status |
428f2112 | 110 | acpi_tb_add_table(struct acpi_table_desc *table_desc, |
f3d2e786 | 111 | acpi_native_uint * table_index) |
1da177e4 | 112 | { |
f3d2e786 BM |
113 | acpi_native_uint i; |
114 | acpi_native_uint length; | |
115 | acpi_status status = AE_OK; | |
1da177e4 | 116 | |
f3d2e786 | 117 | ACPI_FUNCTION_TRACE(tb_add_table); |
1da177e4 | 118 | |
428f2112 AS |
119 | if (!table_desc->pointer) { |
120 | status = acpi_tb_verify_table(table_desc); | |
121 | if (ACPI_FAILURE(status) || !table_desc->pointer) { | |
122 | return_ACPI_STATUS(status); | |
123 | } | |
124 | } | |
125 | ||
0efabac9 | 126 | /* The table must be either an SSDT or a PSDT or an OEMx */ |
428f2112 AS |
127 | |
128 | if ((!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_PSDT)) | |
129 | && | |
0efabac9 LB |
130 | (!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_SSDT)) |
131 | && (strncmp(table_desc->pointer->signature, "OEM", 3))) { | |
428f2112 | 132 | ACPI_ERROR((AE_INFO, |
0efabac9 | 133 | "Table has invalid signature [%4.4s], must be SSDT, PSDT or OEMx", |
428f2112 AS |
134 | table_desc->pointer->signature)); |
135 | return_ACPI_STATUS(AE_BAD_SIGNATURE); | |
136 | } | |
137 | ||
f3d2e786 | 138 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
1da177e4 | 139 | |
f3d2e786 BM |
140 | /* Check if table is already registered */ |
141 | ||
142 | for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { | |
143 | if (!acpi_gbl_root_table_list.tables[i].pointer) { | |
144 | status = | |
145 | acpi_tb_verify_table(&acpi_gbl_root_table_list. | |
146 | tables[i]); | |
147 | if (ACPI_FAILURE(status) | |
148 | || !acpi_gbl_root_table_list.tables[i].pointer) { | |
149 | continue; | |
150 | } | |
151 | } | |
152 | ||
428f2112 AS |
153 | length = ACPI_MIN(table_desc->length, |
154 | acpi_gbl_root_table_list.tables[i].length); | |
155 | if (ACPI_MEMCMP(table_desc->pointer, | |
156 | acpi_gbl_root_table_list.tables[i].pointer, | |
157 | length)) { | |
f3d2e786 BM |
158 | continue; |
159 | } | |
160 | ||
161 | /* Table is already registered */ | |
162 | ||
428f2112 | 163 | acpi_tb_delete_table(table_desc); |
f3d2e786 BM |
164 | *table_index = i; |
165 | goto release; | |
1da177e4 LT |
166 | } |
167 | ||
0c9938cc | 168 | /* |
f3d2e786 | 169 | * Add the table to the global table list |
0c9938cc | 170 | */ |
428f2112 AS |
171 | status = acpi_tb_store_table(table_desc->address, table_desc->pointer, |
172 | table_desc->length, table_desc->flags, | |
173 | table_index); | |
4be44fcd | 174 | if (ACPI_FAILURE(status)) { |
f3d2e786 | 175 | goto release; |
0c9938cc RM |
176 | } |
177 | ||
428f2112 | 178 | acpi_tb_print_table_header(table_desc->address, table_desc->pointer); |
1da177e4 | 179 | |
f3d2e786 | 180 | release: |
4be44fcd LB |
181 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
182 | return_ACPI_STATUS(status); | |
1da177e4 LT |
183 | } |
184 | ||
1da177e4 LT |
185 | /******************************************************************************* |
186 | * | |
f3d2e786 | 187 | * FUNCTION: acpi_tb_resize_root_table_list |
1da177e4 | 188 | * |
f3d2e786 | 189 | * PARAMETERS: None |
1da177e4 LT |
190 | * |
191 | * RETURN: Status | |
192 | * | |
f3d2e786 | 193 | * DESCRIPTION: Expand the size of global table array |
1da177e4 LT |
194 | * |
195 | ******************************************************************************/ | |
196 | ||
f3d2e786 | 197 | acpi_status acpi_tb_resize_root_table_list(void) |
1da177e4 | 198 | { |
f3d2e786 | 199 | struct acpi_table_desc *tables; |
1da177e4 | 200 | |
f3d2e786 | 201 | ACPI_FUNCTION_TRACE(tb_resize_root_table_list); |
1da177e4 | 202 | |
f3d2e786 | 203 | /* allow_resize flag is a parameter to acpi_initialize_tables */ |
1da177e4 | 204 | |
c5fc42ac | 205 | if (!(acpi_gbl_root_table_list.flags & ACPI_ROOT_ALLOW_RESIZE)) { |
f3d2e786 BM |
206 | ACPI_ERROR((AE_INFO, |
207 | "Resize of Root Table Array is not allowed")); | |
208 | return_ACPI_STATUS(AE_SUPPORT); | |
1da177e4 LT |
209 | } |
210 | ||
f3d2e786 BM |
211 | /* Increase the Table Array size */ |
212 | ||
213 | tables = ACPI_ALLOCATE_ZEROED((acpi_gbl_root_table_list.size + | |
214 | ACPI_ROOT_TABLE_SIZE_INCREMENT) | |
215 | * sizeof(struct acpi_table_desc)); | |
216 | if (!tables) { | |
217 | ACPI_ERROR((AE_INFO, | |
218 | "Could not allocate new root table array")); | |
219 | return_ACPI_STATUS(AE_NO_MEMORY); | |
1da177e4 LT |
220 | } |
221 | ||
f3d2e786 BM |
222 | /* Copy and free the previous table array */ |
223 | ||
224 | if (acpi_gbl_root_table_list.tables) { | |
225 | ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, | |
226 | acpi_gbl_root_table_list.size * | |
227 | sizeof(struct acpi_table_desc)); | |
228 | ||
c5fc42ac | 229 | if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { |
f3d2e786 BM |
230 | ACPI_FREE(acpi_gbl_root_table_list.tables); |
231 | } | |
1da177e4 LT |
232 | } |
233 | ||
f3d2e786 BM |
234 | acpi_gbl_root_table_list.tables = tables; |
235 | acpi_gbl_root_table_list.size += ACPI_ROOT_TABLE_SIZE_INCREMENT; | |
c5fc42ac | 236 | acpi_gbl_root_table_list.flags |= (u8) ACPI_ROOT_ORIGIN_ALLOCATED; |
1da177e4 | 237 | |
f3d2e786 | 238 | return_ACPI_STATUS(AE_OK); |
1da177e4 LT |
239 | } |
240 | ||
1da177e4 LT |
241 | /******************************************************************************* |
242 | * | |
f3d2e786 | 243 | * FUNCTION: acpi_tb_store_table |
1da177e4 | 244 | * |
f3d2e786 BM |
245 | * PARAMETERS: Address - Table address |
246 | * Table - Table header | |
247 | * Length - Table length | |
248 | * Flags - flags | |
1da177e4 | 249 | * |
f3d2e786 | 250 | * RETURN: Status and table index. |
1da177e4 | 251 | * |
f3d2e786 | 252 | * DESCRIPTION: Add an ACPI table to the global table list |
1da177e4 LT |
253 | * |
254 | ******************************************************************************/ | |
255 | ||
256 | acpi_status | |
f3d2e786 BM |
257 | acpi_tb_store_table(acpi_physical_address address, |
258 | struct acpi_table_header *table, | |
259 | u32 length, u8 flags, acpi_native_uint * table_index) | |
1da177e4 | 260 | { |
f3d2e786 | 261 | acpi_status status = AE_OK; |
1da177e4 | 262 | |
f3d2e786 | 263 | /* Ensure that there is room for the table in the Root Table List */ |
f9f4601f | 264 | |
f3d2e786 BM |
265 | if (acpi_gbl_root_table_list.count >= acpi_gbl_root_table_list.size) { |
266 | status = acpi_tb_resize_root_table_list(); | |
267 | if (ACPI_FAILURE(status)) { | |
268 | return (status); | |
269 | } | |
f9f4601f RM |
270 | } |
271 | ||
f3d2e786 BM |
272 | /* Initialize added table */ |
273 | ||
274 | acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. | |
275 | address = address; | |
276 | acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. | |
277 | pointer = table; | |
278 | acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].length = | |
279 | length; | |
280 | acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. | |
281 | owner_id = 0; | |
282 | acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].flags = | |
283 | flags; | |
284 | ||
285 | ACPI_MOVE_32_TO_32(& | |
286 | (acpi_gbl_root_table_list. | |
287 | tables[acpi_gbl_root_table_list.count].signature), | |
288 | table->signature); | |
289 | ||
290 | *table_index = acpi_gbl_root_table_list.count; | |
291 | acpi_gbl_root_table_list.count++; | |
292 | return (status); | |
293 | } | |
1da177e4 | 294 | |
f3d2e786 BM |
295 | /******************************************************************************* |
296 | * | |
297 | * FUNCTION: acpi_tb_delete_table | |
298 | * | |
299 | * PARAMETERS: table_index - Table index | |
300 | * | |
301 | * RETURN: None | |
302 | * | |
303 | * DESCRIPTION: Delete one internal ACPI table | |
304 | * | |
305 | ******************************************************************************/ | |
1da177e4 | 306 | |
428f2112 | 307 | void acpi_tb_delete_table(struct acpi_table_desc *table_desc) |
f3d2e786 | 308 | { |
f3d2e786 | 309 | /* Table must be mapped or allocated */ |
f3d2e786 BM |
310 | if (!table_desc->pointer) { |
311 | return; | |
1da177e4 | 312 | } |
428f2112 AS |
313 | switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) { |
314 | case ACPI_TABLE_ORIGIN_MAPPED: | |
315 | acpi_os_unmap_memory(table_desc->pointer, table_desc->length); | |
316 | break; | |
317 | case ACPI_TABLE_ORIGIN_ALLOCATED: | |
f3d2e786 | 318 | ACPI_FREE(table_desc->pointer); |
428f2112 AS |
319 | break; |
320 | default:; | |
1da177e4 LT |
321 | } |
322 | ||
f3d2e786 | 323 | table_desc->pointer = NULL; |
1da177e4 LT |
324 | } |
325 | ||
1da177e4 LT |
326 | /******************************************************************************* |
327 | * | |
f3d2e786 | 328 | * FUNCTION: acpi_tb_terminate |
1da177e4 | 329 | * |
f3d2e786 | 330 | * PARAMETERS: None |
1da177e4 | 331 | * |
f3d2e786 | 332 | * RETURN: None |
1da177e4 LT |
333 | * |
334 | * DESCRIPTION: Delete all internal ACPI tables | |
335 | * | |
336 | ******************************************************************************/ | |
337 | ||
f3d2e786 | 338 | void acpi_tb_terminate(void) |
1da177e4 | 339 | { |
f3d2e786 BM |
340 | acpi_native_uint i; |
341 | ||
342 | ACPI_FUNCTION_TRACE(tb_terminate); | |
343 | ||
344 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); | |
345 | ||
346 | /* Delete the individual tables */ | |
347 | ||
348 | for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { | |
428f2112 | 349 | acpi_tb_delete_table(&acpi_gbl_root_table_list.tables[i]); |
f3d2e786 | 350 | } |
1da177e4 LT |
351 | |
352 | /* | |
f3d2e786 BM |
353 | * Delete the root table array if allocated locally. Array cannot be |
354 | * mapped, so we don't need to check for that flag. | |
1da177e4 | 355 | */ |
c5fc42ac | 356 | if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { |
f3d2e786 | 357 | ACPI_FREE(acpi_gbl_root_table_list.tables); |
1da177e4 | 358 | } |
f3d2e786 BM |
359 | |
360 | acpi_gbl_root_table_list.tables = NULL; | |
361 | acpi_gbl_root_table_list.flags = 0; | |
362 | acpi_gbl_root_table_list.count = 0; | |
363 | ||
364 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n")); | |
365 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); | |
1da177e4 LT |
366 | } |
367 | ||
1da177e4 LT |
368 | /******************************************************************************* |
369 | * | |
f3d2e786 | 370 | * FUNCTION: acpi_tb_delete_namespace_by_owner |
1da177e4 | 371 | * |
f3d2e786 | 372 | * PARAMETERS: table_index - Table index |
1da177e4 | 373 | * |
f3d2e786 | 374 | * RETURN: None |
1da177e4 | 375 | * |
f3d2e786 | 376 | * DESCRIPTION: Delete all namespace objects created when this table was loaded. |
1da177e4 LT |
377 | * |
378 | ******************************************************************************/ | |
379 | ||
f3d2e786 | 380 | void acpi_tb_delete_namespace_by_owner(acpi_native_uint table_index) |
1da177e4 | 381 | { |
f3d2e786 | 382 | acpi_owner_id owner_id; |
1da177e4 | 383 | |
f3d2e786 BM |
384 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
385 | if (table_index < acpi_gbl_root_table_list.count) { | |
386 | owner_id = | |
387 | acpi_gbl_root_table_list.tables[table_index].owner_id; | |
388 | } else { | |
389 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); | |
1da177e4 LT |
390 | return; |
391 | } | |
392 | ||
f3d2e786 BM |
393 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
394 | acpi_ns_delete_namespace_by_owner(owner_id); | |
395 | } | |
1da177e4 | 396 | |
f3d2e786 BM |
397 | /******************************************************************************* |
398 | * | |
399 | * FUNCTION: acpi_tb_allocate_owner_id | |
400 | * | |
401 | * PARAMETERS: table_index - Table index | |
402 | * | |
403 | * RETURN: Status | |
404 | * | |
405 | * DESCRIPTION: Allocates owner_id in table_desc | |
406 | * | |
407 | ******************************************************************************/ | |
1da177e4 | 408 | |
f3d2e786 BM |
409 | acpi_status acpi_tb_allocate_owner_id(acpi_native_uint table_index) |
410 | { | |
411 | acpi_status status = AE_BAD_PARAMETER; | |
1da177e4 | 412 | |
f3d2e786 | 413 | ACPI_FUNCTION_TRACE(tb_allocate_owner_id); |
1da177e4 | 414 | |
f3d2e786 BM |
415 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
416 | if (table_index < acpi_gbl_root_table_list.count) { | |
417 | status = acpi_ut_allocate_owner_id | |
418 | (&(acpi_gbl_root_table_list.tables[table_index].owner_id)); | |
1da177e4 LT |
419 | } |
420 | ||
4be44fcd | 421 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
f3d2e786 | 422 | return_ACPI_STATUS(status); |
1da177e4 LT |
423 | } |
424 | ||
1da177e4 LT |
425 | /******************************************************************************* |
426 | * | |
f3d2e786 | 427 | * FUNCTION: acpi_tb_release_owner_id |
1da177e4 | 428 | * |
f3d2e786 | 429 | * PARAMETERS: table_index - Table index |
1da177e4 | 430 | * |
f3d2e786 | 431 | * RETURN: Status |
1da177e4 | 432 | * |
f3d2e786 | 433 | * DESCRIPTION: Releases owner_id in table_desc |
1da177e4 LT |
434 | * |
435 | ******************************************************************************/ | |
436 | ||
f3d2e786 | 437 | acpi_status acpi_tb_release_owner_id(acpi_native_uint table_index) |
1da177e4 | 438 | { |
f3d2e786 | 439 | acpi_status status = AE_BAD_PARAMETER; |
1da177e4 | 440 | |
f3d2e786 | 441 | ACPI_FUNCTION_TRACE(tb_release_owner_id); |
1da177e4 | 442 | |
f3d2e786 BM |
443 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
444 | if (table_index < acpi_gbl_root_table_list.count) { | |
445 | acpi_ut_release_owner_id(& | |
446 | (acpi_gbl_root_table_list. | |
447 | tables[table_index].owner_id)); | |
448 | status = AE_OK; | |
1da177e4 LT |
449 | } |
450 | ||
f3d2e786 BM |
451 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
452 | return_ACPI_STATUS(status); | |
1da177e4 LT |
453 | } |
454 | ||
1da177e4 LT |
455 | /******************************************************************************* |
456 | * | |
f3d2e786 | 457 | * FUNCTION: acpi_tb_get_owner_id |
1da177e4 | 458 | * |
f3d2e786 BM |
459 | * PARAMETERS: table_index - Table index |
460 | * owner_id - Where the table owner_id is returned | |
1da177e4 | 461 | * |
f3d2e786 | 462 | * RETURN: Status |
1da177e4 | 463 | * |
f3d2e786 | 464 | * DESCRIPTION: returns owner_id for the ACPI table |
1da177e4 LT |
465 | * |
466 | ******************************************************************************/ | |
467 | ||
f3d2e786 BM |
468 | acpi_status |
469 | acpi_tb_get_owner_id(acpi_native_uint table_index, acpi_owner_id * owner_id) | |
1da177e4 | 470 | { |
f3d2e786 | 471 | acpi_status status = AE_BAD_PARAMETER; |
1da177e4 | 472 | |
f3d2e786 | 473 | ACPI_FUNCTION_TRACE(tb_get_owner_id); |
1da177e4 | 474 | |
f3d2e786 BM |
475 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
476 | if (table_index < acpi_gbl_root_table_list.count) { | |
477 | *owner_id = | |
478 | acpi_gbl_root_table_list.tables[table_index].owner_id; | |
479 | status = AE_OK; | |
1da177e4 LT |
480 | } |
481 | ||
f3d2e786 BM |
482 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
483 | return_ACPI_STATUS(status); | |
484 | } | |
1da177e4 | 485 | |
f3d2e786 BM |
486 | /******************************************************************************* |
487 | * | |
488 | * FUNCTION: acpi_tb_is_table_loaded | |
489 | * | |
490 | * PARAMETERS: table_index - Table index | |
491 | * | |
492 | * RETURN: Table Loaded Flag | |
493 | * | |
494 | ******************************************************************************/ | |
1da177e4 | 495 | |
f3d2e786 BM |
496 | u8 acpi_tb_is_table_loaded(acpi_native_uint table_index) |
497 | { | |
498 | u8 is_loaded = FALSE; | |
1da177e4 | 499 | |
f3d2e786 BM |
500 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
501 | if (table_index < acpi_gbl_root_table_list.count) { | |
502 | is_loaded = (u8) | |
503 | (acpi_gbl_root_table_list.tables[table_index]. | |
c5fc42ac | 504 | flags & ACPI_TABLE_IS_LOADED); |
1da177e4 LT |
505 | } |
506 | ||
f3d2e786 BM |
507 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
508 | return (is_loaded); | |
509 | } | |
f6dd9221 | 510 | |
f3d2e786 BM |
511 | /******************************************************************************* |
512 | * | |
513 | * FUNCTION: acpi_tb_set_table_loaded_flag | |
514 | * | |
515 | * PARAMETERS: table_index - Table index | |
516 | * is_loaded - TRUE if table is loaded, FALSE otherwise | |
517 | * | |
518 | * RETURN: None | |
519 | * | |
520 | * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE. | |
521 | * | |
522 | ******************************************************************************/ | |
1da177e4 | 523 | |
f3d2e786 BM |
524 | void acpi_tb_set_table_loaded_flag(acpi_native_uint table_index, u8 is_loaded) |
525 | { | |
1da177e4 | 526 | |
f3d2e786 BM |
527 | (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); |
528 | if (table_index < acpi_gbl_root_table_list.count) { | |
529 | if (is_loaded) { | |
530 | acpi_gbl_root_table_list.tables[table_index].flags |= | |
c5fc42ac | 531 | ACPI_TABLE_IS_LOADED; |
f3d2e786 BM |
532 | } else { |
533 | acpi_gbl_root_table_list.tables[table_index].flags &= | |
c5fc42ac | 534 | ~ACPI_TABLE_IS_LOADED; |
f3d2e786 BM |
535 | } |
536 | } | |
1da177e4 | 537 | |
f3d2e786 | 538 | (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); |
1da177e4 | 539 | } |