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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
73459f73 | 3 | * Module Name: utalloc - local memory allocation routines |
1da177e4 LT |
4 | * |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
8 | * Copyright (C) 2000 - 2005, R. Byron Moore | |
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 | ||
45 | #include <acpi/acpi.h> | |
46 | ||
47 | #define _COMPONENT ACPI_UTILITIES | |
48 | ACPI_MODULE_NAME ("utalloc") | |
49 | ||
44f6c012 | 50 | /* Local prototypes */ |
1da177e4 | 51 | |
44f6c012 RM |
52 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS |
53 | static struct acpi_debug_mem_block * | |
54 | acpi_ut_find_allocation ( | |
44f6c012 RM |
55 | void *allocation); |
56 | ||
57 | static acpi_status | |
58 | acpi_ut_track_allocation ( | |
44f6c012 RM |
59 | struct acpi_debug_mem_block *address, |
60 | acpi_size size, | |
61 | u8 alloc_type, | |
62 | u32 component, | |
63 | char *module, | |
64 | u32 line); | |
65 | ||
66 | static acpi_status | |
67 | acpi_ut_remove_allocation ( | |
44f6c012 RM |
68 | struct acpi_debug_mem_block *address, |
69 | u32 component, | |
70 | char *module, | |
71 | u32 line); | |
72 | #endif /* ACPI_DBG_TRACK_ALLOCATIONS */ | |
73 | ||
73459f73 RM |
74 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS |
75 | static acpi_status | |
76 | acpi_ut_create_list ( | |
77 | char *list_name, | |
78 | u16 object_size, | |
0c9938cc | 79 | struct acpi_memory_list **return_cache); |
1da177e4 | 80 | #endif |
1da177e4 LT |
81 | |
82 | ||
44f6c012 | 83 | /******************************************************************************* |
1da177e4 | 84 | * |
73459f73 | 85 | * FUNCTION: acpi_ut_create_caches |
1da177e4 | 86 | * |
73459f73 | 87 | * PARAMETERS: None |
1da177e4 | 88 | * |
73459f73 | 89 | * RETURN: Status |
1da177e4 | 90 | * |
73459f73 | 91 | * DESCRIPTION: Create all local caches |
1da177e4 LT |
92 | * |
93 | ******************************************************************************/ | |
94 | ||
73459f73 RM |
95 | acpi_status |
96 | acpi_ut_create_caches ( | |
97 | void) | |
1da177e4 | 98 | { |
73459f73 | 99 | acpi_status status; |
1da177e4 LT |
100 | |
101 | ||
73459f73 | 102 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS |
1da177e4 | 103 | |
73459f73 | 104 | /* Memory allocation lists */ |
1da177e4 | 105 | |
73459f73 RM |
106 | status = acpi_ut_create_list ("Acpi-Global", 0, |
107 | &acpi_gbl_global_list); | |
108 | if (ACPI_FAILURE (status)) { | |
109 | return (status); | |
1da177e4 LT |
110 | } |
111 | ||
73459f73 RM |
112 | status = acpi_ut_create_list ("Acpi-Namespace", sizeof (struct acpi_namespace_node), |
113 | &acpi_gbl_ns_node_list); | |
114 | if (ACPI_FAILURE (status)) { | |
115 | return (status); | |
116 | } | |
1da177e4 LT |
117 | #endif |
118 | ||
73459f73 | 119 | /* Object Caches, for frequently used objects */ |
1da177e4 | 120 | |
73459f73 RM |
121 | status = acpi_os_create_cache ("acpi_state", sizeof (union acpi_generic_state), |
122 | ACPI_MAX_STATE_CACHE_DEPTH, &acpi_gbl_state_cache); | |
123 | if (ACPI_FAILURE (status)) { | |
124 | return (status); | |
1da177e4 LT |
125 | } |
126 | ||
73459f73 RM |
127 | status = acpi_os_create_cache ("acpi_parse", sizeof (struct acpi_parse_obj_common), |
128 | ACPI_MAX_PARSE_CACHE_DEPTH, &acpi_gbl_ps_node_cache); | |
129 | if (ACPI_FAILURE (status)) { | |
130 | return (status); | |
1da177e4 LT |
131 | } |
132 | ||
73459f73 RM |
133 | status = acpi_os_create_cache ("acpi_parse_ext", sizeof (struct acpi_parse_obj_named), |
134 | ACPI_MAX_EXTPARSE_CACHE_DEPTH, &acpi_gbl_ps_node_ext_cache); | |
135 | if (ACPI_FAILURE (status)) { | |
136 | return (status); | |
137 | } | |
1da177e4 | 138 | |
73459f73 RM |
139 | status = acpi_os_create_cache ("acpi_operand", sizeof (union acpi_operand_object), |
140 | ACPI_MAX_OBJECT_CACHE_DEPTH, &acpi_gbl_operand_cache); | |
141 | if (ACPI_FAILURE (status)) { | |
142 | return (status); | |
143 | } | |
1da177e4 | 144 | |
73459f73 | 145 | return (AE_OK); |
1da177e4 LT |
146 | } |
147 | ||
148 | ||
44f6c012 | 149 | /******************************************************************************* |
1da177e4 | 150 | * |
73459f73 | 151 | * FUNCTION: acpi_ut_delete_caches |
1da177e4 | 152 | * |
73459f73 | 153 | * PARAMETERS: None |
1da177e4 | 154 | * |
73459f73 | 155 | * RETURN: Status |
1da177e4 | 156 | * |
73459f73 | 157 | * DESCRIPTION: Purge and delete all local caches |
1da177e4 LT |
158 | * |
159 | ******************************************************************************/ | |
160 | ||
73459f73 RM |
161 | acpi_status |
162 | acpi_ut_delete_caches ( | |
163 | void) | |
1da177e4 | 164 | { |
1da177e4 | 165 | |
73459f73 RM |
166 | (void) acpi_os_delete_cache (acpi_gbl_state_cache); |
167 | acpi_gbl_state_cache = NULL; | |
1da177e4 | 168 | |
73459f73 RM |
169 | (void) acpi_os_delete_cache (acpi_gbl_operand_cache); |
170 | acpi_gbl_operand_cache = NULL; | |
1da177e4 | 171 | |
73459f73 RM |
172 | (void) acpi_os_delete_cache (acpi_gbl_ps_node_cache); |
173 | acpi_gbl_ps_node_cache = NULL; | |
1da177e4 | 174 | |
73459f73 RM |
175 | (void) acpi_os_delete_cache (acpi_gbl_ps_node_ext_cache); |
176 | acpi_gbl_ps_node_ext_cache = NULL; | |
1da177e4 | 177 | |
73459f73 | 178 | return (AE_OK); |
1da177e4 | 179 | } |
1da177e4 LT |
180 | |
181 | /******************************************************************************* | |
182 | * | |
183 | * FUNCTION: acpi_ut_validate_buffer | |
184 | * | |
185 | * PARAMETERS: Buffer - Buffer descriptor to be validated | |
186 | * | |
187 | * RETURN: Status | |
188 | * | |
189 | * DESCRIPTION: Perform parameter validation checks on an struct acpi_buffer | |
190 | * | |
191 | ******************************************************************************/ | |
192 | ||
193 | acpi_status | |
194 | acpi_ut_validate_buffer ( | |
195 | struct acpi_buffer *buffer) | |
196 | { | |
197 | ||
198 | /* Obviously, the structure pointer must be valid */ | |
199 | ||
200 | if (!buffer) { | |
201 | return (AE_BAD_PARAMETER); | |
202 | } | |
203 | ||
204 | /* Special semantics for the length */ | |
205 | ||
206 | if ((buffer->length == ACPI_NO_BUFFER) || | |
207 | (buffer->length == ACPI_ALLOCATE_BUFFER) || | |
208 | (buffer->length == ACPI_ALLOCATE_LOCAL_BUFFER)) { | |
209 | return (AE_OK); | |
210 | } | |
211 | ||
212 | /* Length is valid, the buffer pointer must be also */ | |
213 | ||
214 | if (!buffer->pointer) { | |
215 | return (AE_BAD_PARAMETER); | |
216 | } | |
217 | ||
218 | return (AE_OK); | |
219 | } | |
220 | ||
221 | ||
222 | /******************************************************************************* | |
223 | * | |
224 | * FUNCTION: acpi_ut_initialize_buffer | |
225 | * | |
226 | * PARAMETERS: Buffer - Buffer to be validated | |
227 | * required_length - Length needed | |
228 | * | |
229 | * RETURN: Status | |
230 | * | |
231 | * DESCRIPTION: Validate that the buffer is of the required length or | |
232 | * allocate a new buffer. Returned buffer is always zeroed. | |
233 | * | |
234 | ******************************************************************************/ | |
235 | ||
236 | acpi_status | |
237 | acpi_ut_initialize_buffer ( | |
238 | struct acpi_buffer *buffer, | |
239 | acpi_size required_length) | |
240 | { | |
241 | acpi_status status = AE_OK; | |
242 | ||
243 | ||
244 | switch (buffer->length) { | |
245 | case ACPI_NO_BUFFER: | |
246 | ||
247 | /* Set the exception and returned the required length */ | |
248 | ||
249 | status = AE_BUFFER_OVERFLOW; | |
250 | break; | |
251 | ||
252 | ||
253 | case ACPI_ALLOCATE_BUFFER: | |
254 | ||
255 | /* Allocate a new buffer */ | |
256 | ||
257 | buffer->pointer = acpi_os_allocate (required_length); | |
258 | if (!buffer->pointer) { | |
259 | return (AE_NO_MEMORY); | |
260 | } | |
261 | ||
262 | /* Clear the buffer */ | |
263 | ||
264 | ACPI_MEMSET (buffer->pointer, 0, required_length); | |
265 | break; | |
266 | ||
267 | ||
268 | case ACPI_ALLOCATE_LOCAL_BUFFER: | |
269 | ||
270 | /* Allocate a new buffer with local interface to allow tracking */ | |
271 | ||
272 | buffer->pointer = ACPI_MEM_CALLOCATE (required_length); | |
273 | if (!buffer->pointer) { | |
274 | return (AE_NO_MEMORY); | |
275 | } | |
276 | break; | |
277 | ||
278 | ||
279 | default: | |
280 | ||
281 | /* Existing buffer: Validate the size of the buffer */ | |
282 | ||
283 | if (buffer->length < required_length) { | |
284 | status = AE_BUFFER_OVERFLOW; | |
285 | break; | |
286 | } | |
287 | ||
288 | /* Clear the buffer */ | |
289 | ||
290 | ACPI_MEMSET (buffer->pointer, 0, required_length); | |
291 | break; | |
292 | } | |
293 | ||
294 | buffer->length = required_length; | |
295 | return (status); | |
296 | } | |
297 | ||
298 | ||
299 | /******************************************************************************* | |
300 | * | |
301 | * FUNCTION: acpi_ut_allocate | |
302 | * | |
303 | * PARAMETERS: Size - Size of the allocation | |
304 | * Component - Component type of caller | |
305 | * Module - Source file name of caller | |
306 | * Line - Line number of caller | |
307 | * | |
308 | * RETURN: Address of the allocated memory on success, NULL on failure. | |
309 | * | |
310 | * DESCRIPTION: The subsystem's equivalent of malloc. | |
311 | * | |
312 | ******************************************************************************/ | |
313 | ||
314 | void * | |
315 | acpi_ut_allocate ( | |
316 | acpi_size size, | |
317 | u32 component, | |
318 | char *module, | |
319 | u32 line) | |
320 | { | |
321 | void *allocation; | |
322 | ||
323 | ||
324 | ACPI_FUNCTION_TRACE_U32 ("ut_allocate", size); | |
325 | ||
326 | ||
327 | /* Check for an inadvertent size of zero bytes */ | |
328 | ||
329 | if (!size) { | |
330 | _ACPI_REPORT_ERROR (module, line, component, | |
331 | ("ut_allocate: Attempt to allocate zero bytes\n")); | |
332 | size = 1; | |
333 | } | |
334 | ||
335 | allocation = acpi_os_allocate (size); | |
336 | if (!allocation) { | |
337 | /* Report allocation error */ | |
338 | ||
339 | _ACPI_REPORT_ERROR (module, line, component, | |
340 | ("ut_allocate: Could not allocate size %X\n", (u32) size)); | |
341 | ||
342 | return_PTR (NULL); | |
343 | } | |
344 | ||
345 | return_PTR (allocation); | |
346 | } | |
347 | ||
348 | ||
349 | /******************************************************************************* | |
350 | * | |
351 | * FUNCTION: acpi_ut_callocate | |
352 | * | |
353 | * PARAMETERS: Size - Size of the allocation | |
354 | * Component - Component type of caller | |
355 | * Module - Source file name of caller | |
356 | * Line - Line number of caller | |
357 | * | |
358 | * RETURN: Address of the allocated memory on success, NULL on failure. | |
359 | * | |
360 | * DESCRIPTION: Subsystem equivalent of calloc. | |
361 | * | |
362 | ******************************************************************************/ | |
363 | ||
364 | void * | |
365 | acpi_ut_callocate ( | |
366 | acpi_size size, | |
367 | u32 component, | |
368 | char *module, | |
369 | u32 line) | |
370 | { | |
371 | void *allocation; | |
372 | ||
373 | ||
374 | ACPI_FUNCTION_TRACE_U32 ("ut_callocate", size); | |
375 | ||
376 | ||
377 | /* Check for an inadvertent size of zero bytes */ | |
378 | ||
379 | if (!size) { | |
380 | _ACPI_REPORT_ERROR (module, line, component, | |
381 | ("ut_callocate: Attempt to allocate zero bytes\n")); | |
382 | return_PTR (NULL); | |
383 | } | |
384 | ||
385 | allocation = acpi_os_allocate (size); | |
386 | if (!allocation) { | |
387 | /* Report allocation error */ | |
388 | ||
389 | _ACPI_REPORT_ERROR (module, line, component, | |
390 | ("ut_callocate: Could not allocate size %X\n", (u32) size)); | |
391 | return_PTR (NULL); | |
392 | } | |
393 | ||
394 | /* Clear the memory block */ | |
395 | ||
396 | ACPI_MEMSET (allocation, 0, size); | |
397 | return_PTR (allocation); | |
398 | } | |
399 | ||
400 | ||
401 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS | |
402 | /* | |
403 | * These procedures are used for tracking memory leaks in the subsystem, and | |
404 | * they get compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set. | |
405 | * | |
406 | * Each memory allocation is tracked via a doubly linked list. Each | |
407 | * element contains the caller's component, module name, function name, and | |
408 | * line number. acpi_ut_allocate and acpi_ut_callocate call | |
409 | * acpi_ut_track_allocation to add an element to the list; deletion | |
410 | * occurs in the body of acpi_ut_free. | |
411 | */ | |
412 | ||
73459f73 RM |
413 | /******************************************************************************* |
414 | * | |
415 | * FUNCTION: acpi_ut_create_list | |
416 | * | |
417 | * PARAMETERS: cache_name - Ascii name for the cache | |
418 | * object_size - Size of each cached object | |
419 | * return_cache - Where the new cache object is returned | |
420 | * | |
421 | * RETURN: Status | |
422 | * | |
423 | * DESCRIPTION: Create a local memory list for tracking purposed | |
424 | * | |
425 | ******************************************************************************/ | |
426 | ||
427 | static acpi_status | |
428 | acpi_ut_create_list ( | |
429 | char *list_name, | |
430 | u16 object_size, | |
0c9938cc | 431 | struct acpi_memory_list **return_cache) |
73459f73 RM |
432 | { |
433 | struct acpi_memory_list *cache; | |
434 | ||
435 | ||
436 | cache = acpi_os_allocate (sizeof (struct acpi_memory_list)); | |
437 | if (!cache) { | |
438 | return (AE_NO_MEMORY); | |
439 | } | |
440 | ||
441 | ACPI_MEMSET (cache, 0, sizeof (struct acpi_memory_list)); | |
442 | ||
443 | cache->list_name = list_name; | |
444 | cache->object_size = object_size; | |
445 | ||
446 | *return_cache = cache; | |
447 | return (AE_OK); | |
448 | } | |
449 | ||
1da177e4 LT |
450 | |
451 | /******************************************************************************* | |
452 | * | |
453 | * FUNCTION: acpi_ut_allocate_and_track | |
454 | * | |
455 | * PARAMETERS: Size - Size of the allocation | |
456 | * Component - Component type of caller | |
457 | * Module - Source file name of caller | |
458 | * Line - Line number of caller | |
459 | * | |
460 | * RETURN: Address of the allocated memory on success, NULL on failure. | |
461 | * | |
462 | * DESCRIPTION: The subsystem's equivalent of malloc. | |
463 | * | |
464 | ******************************************************************************/ | |
465 | ||
466 | void * | |
467 | acpi_ut_allocate_and_track ( | |
468 | acpi_size size, | |
469 | u32 component, | |
470 | char *module, | |
471 | u32 line) | |
472 | { | |
473 | struct acpi_debug_mem_block *allocation; | |
474 | acpi_status status; | |
475 | ||
476 | ||
44f6c012 RM |
477 | allocation = acpi_ut_allocate (size + sizeof (struct acpi_debug_mem_header), |
478 | component, module, line); | |
1da177e4 LT |
479 | if (!allocation) { |
480 | return (NULL); | |
481 | } | |
482 | ||
73459f73 | 483 | status = acpi_ut_track_allocation (allocation, size, |
1da177e4 LT |
484 | ACPI_MEM_MALLOC, component, module, line); |
485 | if (ACPI_FAILURE (status)) { | |
486 | acpi_os_free (allocation); | |
487 | return (NULL); | |
488 | } | |
489 | ||
73459f73 RM |
490 | acpi_gbl_global_list->total_allocated++; |
491 | acpi_gbl_global_list->current_total_size += (u32) size; | |
1da177e4 LT |
492 | |
493 | return ((void *) &allocation->user_space); | |
494 | } | |
495 | ||
496 | ||
497 | /******************************************************************************* | |
498 | * | |
499 | * FUNCTION: acpi_ut_callocate_and_track | |
500 | * | |
501 | * PARAMETERS: Size - Size of the allocation | |
502 | * Component - Component type of caller | |
503 | * Module - Source file name of caller | |
504 | * Line - Line number of caller | |
505 | * | |
506 | * RETURN: Address of the allocated memory on success, NULL on failure. | |
507 | * | |
508 | * DESCRIPTION: Subsystem equivalent of calloc. | |
509 | * | |
510 | ******************************************************************************/ | |
511 | ||
512 | void * | |
513 | acpi_ut_callocate_and_track ( | |
514 | acpi_size size, | |
515 | u32 component, | |
516 | char *module, | |
517 | u32 line) | |
518 | { | |
519 | struct acpi_debug_mem_block *allocation; | |
520 | acpi_status status; | |
521 | ||
522 | ||
44f6c012 RM |
523 | allocation = acpi_ut_callocate (size + sizeof (struct acpi_debug_mem_header), |
524 | component, module, line); | |
1da177e4 LT |
525 | if (!allocation) { |
526 | /* Report allocation error */ | |
527 | ||
528 | _ACPI_REPORT_ERROR (module, line, component, | |
529 | ("ut_callocate: Could not allocate size %X\n", (u32) size)); | |
530 | return (NULL); | |
531 | } | |
532 | ||
73459f73 | 533 | status = acpi_ut_track_allocation (allocation, size, |
1da177e4 LT |
534 | ACPI_MEM_CALLOC, component, module, line); |
535 | if (ACPI_FAILURE (status)) { | |
536 | acpi_os_free (allocation); | |
537 | return (NULL); | |
538 | } | |
539 | ||
73459f73 RM |
540 | acpi_gbl_global_list->total_allocated++; |
541 | acpi_gbl_global_list->current_total_size += (u32) size; | |
1da177e4 LT |
542 | |
543 | return ((void *) &allocation->user_space); | |
544 | } | |
545 | ||
546 | ||
547 | /******************************************************************************* | |
548 | * | |
549 | * FUNCTION: acpi_ut_free_and_track | |
550 | * | |
551 | * PARAMETERS: Allocation - Address of the memory to deallocate | |
552 | * Component - Component type of caller | |
553 | * Module - Source file name of caller | |
554 | * Line - Line number of caller | |
555 | * | |
556 | * RETURN: None | |
557 | * | |
558 | * DESCRIPTION: Frees the memory at Allocation | |
559 | * | |
560 | ******************************************************************************/ | |
561 | ||
562 | void | |
563 | acpi_ut_free_and_track ( | |
564 | void *allocation, | |
565 | u32 component, | |
566 | char *module, | |
567 | u32 line) | |
568 | { | |
569 | struct acpi_debug_mem_block *debug_block; | |
570 | acpi_status status; | |
571 | ||
572 | ||
573 | ACPI_FUNCTION_TRACE_PTR ("ut_free", allocation); | |
574 | ||
575 | ||
576 | if (NULL == allocation) { | |
577 | _ACPI_REPORT_ERROR (module, line, component, | |
578 | ("acpi_ut_free: Attempt to delete a NULL address\n")); | |
579 | ||
580 | return_VOID; | |
581 | } | |
582 | ||
583 | debug_block = ACPI_CAST_PTR (struct acpi_debug_mem_block, | |
584 | (((char *) allocation) - sizeof (struct acpi_debug_mem_header))); | |
585 | ||
73459f73 RM |
586 | acpi_gbl_global_list->total_freed++; |
587 | acpi_gbl_global_list->current_total_size -= debug_block->size; | |
1da177e4 | 588 | |
73459f73 | 589 | status = acpi_ut_remove_allocation (debug_block, |
1da177e4 LT |
590 | component, module, line); |
591 | if (ACPI_FAILURE (status)) { | |
592 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not free memory, %s\n", | |
593 | acpi_format_exception (status))); | |
594 | } | |
595 | ||
596 | acpi_os_free (debug_block); | |
597 | ||
598 | ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p freed\n", allocation)); | |
599 | ||
600 | return_VOID; | |
601 | } | |
602 | ||
603 | ||
604 | /******************************************************************************* | |
605 | * | |
606 | * FUNCTION: acpi_ut_find_allocation | |
607 | * | |
73459f73 | 608 | * PARAMETERS: Allocation - Address of allocated memory |
1da177e4 LT |
609 | * |
610 | * RETURN: A list element if found; NULL otherwise. | |
611 | * | |
612 | * DESCRIPTION: Searches for an element in the global allocation tracking list. | |
613 | * | |
614 | ******************************************************************************/ | |
615 | ||
44f6c012 | 616 | static struct acpi_debug_mem_block * |
1da177e4 | 617 | acpi_ut_find_allocation ( |
1da177e4 LT |
618 | void *allocation) |
619 | { | |
620 | struct acpi_debug_mem_block *element; | |
621 | ||
622 | ||
623 | ACPI_FUNCTION_ENTRY (); | |
624 | ||
625 | ||
73459f73 | 626 | element = acpi_gbl_global_list->list_head; |
1da177e4 LT |
627 | |
628 | /* Search for the address. */ | |
629 | ||
630 | while (element) { | |
631 | if (element == allocation) { | |
632 | return (element); | |
633 | } | |
634 | ||
635 | element = element->next; | |
636 | } | |
637 | ||
638 | return (NULL); | |
639 | } | |
640 | ||
641 | ||
642 | /******************************************************************************* | |
643 | * | |
644 | * FUNCTION: acpi_ut_track_allocation | |
645 | * | |
73459f73 | 646 | * PARAMETERS: Allocation - Address of allocated memory |
1da177e4 LT |
647 | * Size - Size of the allocation |
648 | * alloc_type - MEM_MALLOC or MEM_CALLOC | |
649 | * Component - Component type of caller | |
650 | * Module - Source file name of caller | |
651 | * Line - Line number of caller | |
652 | * | |
653 | * RETURN: None. | |
654 | * | |
655 | * DESCRIPTION: Inserts an element into the global allocation tracking list. | |
656 | * | |
657 | ******************************************************************************/ | |
658 | ||
44f6c012 | 659 | static acpi_status |
1da177e4 | 660 | acpi_ut_track_allocation ( |
1da177e4 LT |
661 | struct acpi_debug_mem_block *allocation, |
662 | acpi_size size, | |
663 | u8 alloc_type, | |
664 | u32 component, | |
665 | char *module, | |
666 | u32 line) | |
667 | { | |
668 | struct acpi_memory_list *mem_list; | |
669 | struct acpi_debug_mem_block *element; | |
670 | acpi_status status = AE_OK; | |
671 | ||
672 | ||
673 | ACPI_FUNCTION_TRACE_PTR ("ut_track_allocation", allocation); | |
674 | ||
675 | ||
73459f73 | 676 | mem_list = acpi_gbl_global_list; |
1da177e4 LT |
677 | status = acpi_ut_acquire_mutex (ACPI_MTX_MEMORY); |
678 | if (ACPI_FAILURE (status)) { | |
679 | return_ACPI_STATUS (status); | |
680 | } | |
681 | ||
682 | /* | |
683 | * Search list for this address to make sure it is not already on the list. | |
684 | * This will catch several kinds of problems. | |
685 | */ | |
73459f73 | 686 | element = acpi_ut_find_allocation (allocation); |
1da177e4 | 687 | if (element) { |
44f6c012 RM |
688 | ACPI_REPORT_ERROR (( |
689 | "ut_track_allocation: Allocation already present in list! (%p)\n", | |
1da177e4 LT |
690 | allocation)); |
691 | ||
44f6c012 RM |
692 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Element %p Address %p\n", |
693 | element, allocation)); | |
1da177e4 LT |
694 | |
695 | goto unlock_and_exit; | |
696 | } | |
697 | ||
698 | /* Fill in the instance data. */ | |
699 | ||
700 | allocation->size = (u32) size; | |
701 | allocation->alloc_type = alloc_type; | |
702 | allocation->component = component; | |
703 | allocation->line = line; | |
704 | ||
705 | ACPI_STRNCPY (allocation->module, module, ACPI_MAX_MODULE_NAME); | |
706 | allocation->module[ACPI_MAX_MODULE_NAME-1] = 0; | |
707 | ||
708 | /* Insert at list head */ | |
709 | ||
710 | if (mem_list->list_head) { | |
711 | ((struct acpi_debug_mem_block *)(mem_list->list_head))->previous = allocation; | |
712 | } | |
713 | ||
714 | allocation->next = mem_list->list_head; | |
715 | allocation->previous = NULL; | |
716 | ||
717 | mem_list->list_head = allocation; | |
718 | ||
719 | ||
720 | unlock_and_exit: | |
721 | status = acpi_ut_release_mutex (ACPI_MTX_MEMORY); | |
722 | return_ACPI_STATUS (status); | |
723 | } | |
724 | ||
725 | ||
726 | /******************************************************************************* | |
727 | * | |
728 | * FUNCTION: acpi_ut_remove_allocation | |
729 | * | |
73459f73 | 730 | * PARAMETERS: Allocation - Address of allocated memory |
1da177e4 LT |
731 | * Component - Component type of caller |
732 | * Module - Source file name of caller | |
733 | * Line - Line number of caller | |
734 | * | |
735 | * RETURN: | |
736 | * | |
737 | * DESCRIPTION: Deletes an element from the global allocation tracking list. | |
738 | * | |
739 | ******************************************************************************/ | |
740 | ||
44f6c012 | 741 | static acpi_status |
1da177e4 | 742 | acpi_ut_remove_allocation ( |
1da177e4 LT |
743 | struct acpi_debug_mem_block *allocation, |
744 | u32 component, | |
745 | char *module, | |
746 | u32 line) | |
747 | { | |
748 | struct acpi_memory_list *mem_list; | |
749 | acpi_status status; | |
750 | ||
751 | ||
752 | ACPI_FUNCTION_TRACE ("ut_remove_allocation"); | |
753 | ||
754 | ||
73459f73 | 755 | mem_list = acpi_gbl_global_list; |
1da177e4 LT |
756 | if (NULL == mem_list->list_head) { |
757 | /* No allocations! */ | |
758 | ||
759 | _ACPI_REPORT_ERROR (module, line, component, | |
44f6c012 | 760 | ("ut_remove_allocation: Empty allocation list, nothing to free!\n")); |
1da177e4 LT |
761 | |
762 | return_ACPI_STATUS (AE_OK); | |
763 | } | |
764 | ||
765 | status = acpi_ut_acquire_mutex (ACPI_MTX_MEMORY); | |
766 | if (ACPI_FAILURE (status)) { | |
767 | return_ACPI_STATUS (status); | |
768 | } | |
769 | ||
770 | /* Unlink */ | |
771 | ||
772 | if (allocation->previous) { | |
773 | (allocation->previous)->next = allocation->next; | |
774 | } | |
775 | else { | |
776 | mem_list->list_head = allocation->next; | |
777 | } | |
778 | ||
779 | if (allocation->next) { | |
780 | (allocation->next)->previous = allocation->previous; | |
781 | } | |
782 | ||
783 | /* Mark the segment as deleted */ | |
784 | ||
785 | ACPI_MEMSET (&allocation->user_space, 0xEA, allocation->size); | |
786 | ||
44f6c012 RM |
787 | ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Freeing size 0%X\n", |
788 | allocation->size)); | |
1da177e4 LT |
789 | |
790 | status = acpi_ut_release_mutex (ACPI_MTX_MEMORY); | |
791 | return_ACPI_STATUS (status); | |
792 | } | |
793 | ||
794 | ||
795 | /******************************************************************************* | |
796 | * | |
797 | * FUNCTION: acpi_ut_dump_allocation_info | |
798 | * | |
799 | * PARAMETERS: | |
800 | * | |
801 | * RETURN: None | |
802 | * | |
803 | * DESCRIPTION: Print some info about the outstanding allocations. | |
804 | * | |
805 | ******************************************************************************/ | |
44f6c012 | 806 | |
1da177e4 LT |
807 | #ifdef ACPI_FUTURE_USAGE |
808 | void | |
809 | acpi_ut_dump_allocation_info ( | |
810 | void) | |
811 | { | |
812 | /* | |
813 | struct acpi_memory_list *mem_list; | |
814 | */ | |
815 | ||
816 | ACPI_FUNCTION_TRACE ("ut_dump_allocation_info"); | |
817 | ||
818 | /* | |
819 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, | |
820 | ("%30s: %4d (%3d Kb)\n", "Current allocations", | |
821 | mem_list->current_count, | |
822 | ROUND_UP_TO_1K (mem_list->current_size))); | |
823 | ||
824 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, | |
825 | ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations", | |
826 | mem_list->max_concurrent_count, | |
827 | ROUND_UP_TO_1K (mem_list->max_concurrent_size))); | |
828 | ||
829 | ||
830 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, | |
831 | ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects", | |
832 | running_object_count, | |
833 | ROUND_UP_TO_1K (running_object_size))); | |
834 | ||
835 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, | |
836 | ("%30s: %4d (%3d Kb)\n", "Total (all) allocations", | |
837 | running_alloc_count, | |
838 | ROUND_UP_TO_1K (running_alloc_size))); | |
839 | ||
840 | ||
841 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, | |
842 | ("%30s: %4d (%3d Kb)\n", "Current Nodes", | |
843 | acpi_gbl_current_node_count, | |
844 | ROUND_UP_TO_1K (acpi_gbl_current_node_size))); | |
845 | ||
846 | ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, | |
847 | ("%30s: %4d (%3d Kb)\n", "Max Nodes", | |
848 | acpi_gbl_max_concurrent_node_count, | |
44f6c012 RM |
849 | ROUND_UP_TO_1K ((acpi_gbl_max_concurrent_node_count * |
850 | sizeof (struct acpi_namespace_node))))); | |
1da177e4 LT |
851 | */ |
852 | return_VOID; | |
853 | } | |
854 | #endif /* ACPI_FUTURE_USAGE */ | |
855 | ||
856 | ||
857 | /******************************************************************************* | |
858 | * | |
859 | * FUNCTION: acpi_ut_dump_allocations | |
860 | * | |
861 | * PARAMETERS: Component - Component(s) to dump info for. | |
862 | * Module - Module to dump info for. NULL means all. | |
863 | * | |
864 | * RETURN: None | |
865 | * | |
866 | * DESCRIPTION: Print a list of all outstanding allocations. | |
867 | * | |
868 | ******************************************************************************/ | |
869 | ||
870 | void | |
871 | acpi_ut_dump_allocations ( | |
872 | u32 component, | |
873 | char *module) | |
874 | { | |
875 | struct acpi_debug_mem_block *element; | |
876 | union acpi_descriptor *descriptor; | |
877 | u32 num_outstanding = 0; | |
878 | ||
879 | ||
880 | ACPI_FUNCTION_TRACE ("ut_dump_allocations"); | |
881 | ||
882 | ||
883 | /* | |
884 | * Walk the allocation list. | |
885 | */ | |
886 | if (ACPI_FAILURE (acpi_ut_acquire_mutex (ACPI_MTX_MEMORY))) { | |
887 | return; | |
888 | } | |
889 | ||
73459f73 | 890 | element = acpi_gbl_global_list->list_head; |
1da177e4 LT |
891 | while (element) { |
892 | if ((element->component & component) && | |
893 | ((module == NULL) || (0 == ACPI_STRCMP (module, element->module)))) { | |
894 | /* Ignore allocated objects that are in a cache */ | |
895 | ||
896 | descriptor = ACPI_CAST_PTR (union acpi_descriptor, &element->user_space); | |
897 | if (descriptor->descriptor_id != ACPI_DESC_TYPE_CACHED) { | |
898 | acpi_os_printf ("%p Len %04X %9.9s-%d [%s] ", | |
44f6c012 RM |
899 | descriptor, element->size, element->module, |
900 | element->line, acpi_ut_get_descriptor_name (descriptor)); | |
1da177e4 LT |
901 | |
902 | /* Most of the elements will be Operand objects. */ | |
903 | ||
904 | switch (ACPI_GET_DESCRIPTOR_TYPE (descriptor)) { | |
905 | case ACPI_DESC_TYPE_OPERAND: | |
906 | acpi_os_printf ("%12.12s R%hd", | |
44f6c012 RM |
907 | acpi_ut_get_type_name (descriptor->object.common.type), |
908 | descriptor->object.common.reference_count); | |
1da177e4 LT |
909 | break; |
910 | ||
911 | case ACPI_DESC_TYPE_PARSER: | |
912 | acpi_os_printf ("aml_opcode %04hX", | |
44f6c012 | 913 | descriptor->op.asl.aml_opcode); |
1da177e4 LT |
914 | break; |
915 | ||
916 | case ACPI_DESC_TYPE_NAMED: | |
917 | acpi_os_printf ("%4.4s", | |
44f6c012 | 918 | acpi_ut_get_node_name (&descriptor->node)); |
1da177e4 LT |
919 | break; |
920 | ||
921 | default: | |
922 | break; | |
923 | } | |
924 | ||
925 | acpi_os_printf ( "\n"); | |
926 | num_outstanding++; | |
927 | } | |
928 | } | |
929 | element = element->next; | |
930 | } | |
931 | ||
932 | (void) acpi_ut_release_mutex (ACPI_MTX_MEMORY); | |
933 | ||
934 | /* Print summary */ | |
935 | ||
936 | if (!num_outstanding) { | |
937 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, | |
938 | "No outstanding allocations.\n")); | |
939 | } | |
940 | else { | |
941 | ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, | |
942 | "%d(%X) Outstanding allocations\n", | |
943 | num_outstanding, num_outstanding)); | |
944 | } | |
945 | ||
946 | return_VOID; | |
947 | } | |
948 | ||
1da177e4 LT |
949 | #endif /* #ifdef ACPI_DBG_TRACK_ALLOCATIONS */ |
950 |