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authorRobert Moore <robert.moore@intel.com>2005-06-24 00:00:00 -0400
committerLen Brown <len.brown@intel.com>2005-07-13 23:45:36 -0400
commit73459f73e5d1602c59ebec114fc45185521353c1 (patch)
tree56c2183e345784d2be09c2f5d2530cf36221c55e /drivers/acpi/utilities
parent88ac00f5a841dcfc5c682000f4a6add0add8caac (diff)
ACPICA 20050617-0624 from Bob Moore <robert.moore@intel.com>
ACPICA 20050617: Moved the object cache operations into the OS interface layer (OSL) to allow the host OS to handle these operations if desired (for example, the Linux OSL will invoke the slab allocator). This support is optional; the compile time define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache code in the ACPI CA core. The new OSL interfaces are shown below. See utalloc.c for an example implementation, and acpiosxf.h for the exact interface definitions. Thanks to Alexey Starikovskiy. acpi_os_create_cache acpi_os_delete_cache acpi_os_purge_cache acpi_os_acquire_object acpi_os_release_object Modified the interfaces to acpi_os_acquire_lock and acpi_os_release_lock to return and restore a flags parameter. This fits better with many OS lock models. Note: the current execution state (interrupt handler or not) is no longer passed to these interfaces. If necessary, the OSL must determine this state by itself, a simple and fast operation. Thanks to Alexey Starikovskiy. Fixed a problem in the ACPI table handling where a valid XSDT was assumed present if the revision of the RSDP was 2 or greater. According to the ACPI specification, the XSDT is optional in all cases, and the table manager therefore now checks for both an RSDP >=2 and a valid XSDT pointer. Otherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain only the RSDT. Fixed an interpreter problem with the Mid() operator in the case of an input string where the resulting output string is of zero length. It now correctly returns a valid, null terminated string object instead of a string object with a null pointer. Fixed a problem with the control method argument handling to allow a store to an Arg object that already contains an object of type Device. The Device object is now correctly overwritten. Previously, an error was returned. ACPICA 20050624: Modified the new OSL cache interfaces to use ACPI_CACHE_T as the type for the host-defined cache object. This allows the OSL implementation to define and type this object in any manner desired, simplifying the OSL implementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for Linux, and should be defined in the OS-specific header file for other operating systems as required. Changed the interface to AcpiOsAcquireObject to directly return the requested object as the function return (instead of ACPI_STATUS.) This change was made for performance reasons, since this is the purpose of the interface in the first place. acpi_os_acquire_object is now similar to the acpi_os_allocate interface. Thanks to Alexey Starikovskiy. Modified the initialization sequence in acpi_initialize_subsystem to call the OSL interface acpi_osl_initialize first, before any local initialization. This change was required because the global initialization now calls OSL interfaces. Restructured the code base to split some files because of size and/or because the code logically belonged in a separate file. New files are listed below. utilities/utcache.c /* Local cache interfaces */ utilities/utmutex.c /* Local mutex support */ utilities/utstate.c /* State object support */ parser/psloop.c /* Main AML parse loop */ Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/utilities')
-rw-r--r--drivers/acpi/utilities/Makefile2
-rw-r--r--drivers/acpi/utilities/utalloc.c304
-rw-r--r--drivers/acpi/utilities/utcache.c322
-rw-r--r--drivers/acpi/utilities/utdebug.c4
-rw-r--r--drivers/acpi/utilities/utglobal.c38
-rw-r--r--drivers/acpi/utilities/utinit.c2
-rw-r--r--drivers/acpi/utilities/utmisc.c689
-rw-r--r--drivers/acpi/utilities/utmutex.c380
-rw-r--r--drivers/acpi/utilities/utobject.c34
-rw-r--r--drivers/acpi/utilities/utstate.c376
-rw-r--r--drivers/acpi/utilities/utxface.c23
11 files changed, 1221 insertions, 953 deletions
diff --git a/drivers/acpi/utilities/Makefile b/drivers/acpi/utilities/Makefile
index 939c447dd52a..e87108b7338a 100644
--- a/drivers/acpi/utilities/Makefile
+++ b/drivers/acpi/utilities/Makefile
@@ -3,6 +3,6 @@
3# 3#
4 4
5obj-y := utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \ 5obj-y := utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \
6 utcopy.o utdelete.o utglobal.o utmath.o utobject.o 6 utcopy.o utdelete.o utglobal.o utmath.o utobject.o utstate.o utmutex.o utobject.o utcache.o
7 7
8EXTRA_CFLAGS += $(ACPI_CFLAGS) 8EXTRA_CFLAGS += $(ACPI_CFLAGS)
diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c
index c4e7f989a2bd..5061c6f0ee66 100644
--- a/drivers/acpi/utilities/utalloc.c
+++ b/drivers/acpi/utilities/utalloc.c
@@ -1,6 +1,6 @@
1/****************************************************************************** 1/******************************************************************************
2 * 2 *
3 * Module Name: utalloc - local cache and memory allocation routines 3 * Module Name: utalloc - local memory allocation routines
4 * 4 *
5 *****************************************************************************/ 5 *****************************************************************************/
6 6
@@ -52,12 +52,10 @@
52#ifdef ACPI_DBG_TRACK_ALLOCATIONS 52#ifdef ACPI_DBG_TRACK_ALLOCATIONS
53static struct acpi_debug_mem_block * 53static struct acpi_debug_mem_block *
54acpi_ut_find_allocation ( 54acpi_ut_find_allocation (
55 u32 list_id,
56 void *allocation); 55 void *allocation);
57 56
58static acpi_status 57static acpi_status
59acpi_ut_track_allocation ( 58acpi_ut_track_allocation (
60 u32 list_id,
61 struct acpi_debug_mem_block *address, 59 struct acpi_debug_mem_block *address,
62 acpi_size size, 60 acpi_size size,
63 u8 alloc_type, 61 u8 alloc_type,
@@ -67,206 +65,118 @@ acpi_ut_track_allocation (
67 65
68static acpi_status 66static acpi_status
69acpi_ut_remove_allocation ( 67acpi_ut_remove_allocation (
70 u32 list_id,
71 struct acpi_debug_mem_block *address, 68 struct acpi_debug_mem_block *address,
72 u32 component, 69 u32 component,
73 char *module, 70 char *module,
74 u32 line); 71 u32 line);
75#endif /* ACPI_DBG_TRACK_ALLOCATIONS */ 72#endif /* ACPI_DBG_TRACK_ALLOCATIONS */
76 73
77 74#ifdef ACPI_DBG_TRACK_ALLOCATIONS
78/******************************************************************************* 75static acpi_status
79 * 76acpi_ut_create_list (
80 * FUNCTION: acpi_ut_release_to_cache 77 char *list_name,
81 * 78 u16 object_size,
82 * PARAMETERS: list_id - Memory list/cache ID 79 acpi_handle *return_cache);
83 * Object - The object to be released
84 *
85 * RETURN: None
86 *
87 * DESCRIPTION: Release an object to the specified cache. If cache is full,
88 * the object is deleted.
89 *
90 ******************************************************************************/
91
92void
93acpi_ut_release_to_cache (
94 u32 list_id,
95 void *object)
96{
97 struct acpi_memory_list *cache_info;
98
99
100 ACPI_FUNCTION_ENTRY ();
101
102
103 cache_info = &acpi_gbl_memory_lists[list_id];
104
105#ifdef ACPI_ENABLE_OBJECT_CACHE
106
107 /* If walk cache is full, just free this wallkstate object */
108
109 if (cache_info->cache_depth >= cache_info->max_cache_depth) {
110 ACPI_MEM_FREE (object);
111 ACPI_MEM_TRACKING (cache_info->total_freed++);
112 }
113
114 /* Otherwise put this object back into the cache */
115
116 else {
117 if (ACPI_FAILURE (acpi_ut_acquire_mutex (ACPI_MTX_CACHES))) {
118 return;
119 }
120
121 /* Mark the object as cached */
122
123 ACPI_MEMSET (object, 0xCA, cache_info->object_size);
124 ACPI_SET_DESCRIPTOR_TYPE (object, ACPI_DESC_TYPE_CACHED);
125
126 /* Put the object at the head of the cache list */
127
128 * (ACPI_CAST_INDIRECT_PTR (char,
129 &(((char *) object)[cache_info->link_offset]))) = cache_info->list_head;
130 cache_info->list_head = object;
131 cache_info->cache_depth++;
132
133 (void) acpi_ut_release_mutex (ACPI_MTX_CACHES);
134 }
135
136#else
137
138 /* Object cache is disabled; just free the object */
139
140 ACPI_MEM_FREE (object);
141 ACPI_MEM_TRACKING (cache_info->total_freed++);
142#endif 80#endif
143}
144 81
145 82
146/******************************************************************************* 83/*******************************************************************************
147 * 84 *
148 * FUNCTION: acpi_ut_acquire_from_cache 85 * FUNCTION: acpi_ut_create_caches
149 * 86 *
150 * PARAMETERS: list_id - Memory list ID 87 * PARAMETERS: None
151 * 88 *
152 * RETURN: A requested object. NULL if the object could not be 89 * RETURN: Status
153 * allocated.
154 * 90 *
155 * DESCRIPTION: Get an object from the specified cache. If cache is empty, 91 * DESCRIPTION: Create all local caches
156 * the object is allocated.
157 * 92 *
158 ******************************************************************************/ 93 ******************************************************************************/
159 94
160void * 95acpi_status
161acpi_ut_acquire_from_cache ( 96acpi_ut_create_caches (
162 u32 list_id) 97 void)
163{ 98{
164 struct acpi_memory_list *cache_info; 99 acpi_status status;
165 void *object;
166
167
168 ACPI_FUNCTION_NAME ("ut_acquire_from_cache");
169 100
170 101
171 cache_info = &acpi_gbl_memory_lists[list_id]; 102#ifdef ACPI_DBG_TRACK_ALLOCATIONS
172 103
173#ifdef ACPI_ENABLE_OBJECT_CACHE 104 /* Memory allocation lists */
174 105
175 if (ACPI_FAILURE (acpi_ut_acquire_mutex (ACPI_MTX_CACHES))) { 106 status = acpi_ut_create_list ("Acpi-Global", 0,
176 return (NULL); 107 &acpi_gbl_global_list);
108 if (ACPI_FAILURE (status)) {
109 return (status);
177 } 110 }
178 111
179 ACPI_MEM_TRACKING (cache_info->cache_requests++); 112 status = acpi_ut_create_list ("Acpi-Namespace", sizeof (struct acpi_namespace_node),
180 113 &acpi_gbl_ns_node_list);
181 /* Check the cache first */ 114 if (ACPI_FAILURE (status)) {
182 115 return (status);
183 if (cache_info->list_head) { 116 }
184 /* There is an object available, use it */
185
186 object = cache_info->list_head;
187 cache_info->list_head = *(ACPI_CAST_INDIRECT_PTR (char,
188 &(((char *) object)[cache_info->link_offset])));
189
190 ACPI_MEM_TRACKING (cache_info->cache_hits++);
191 cache_info->cache_depth--;
192
193#ifdef ACPI_DBG_TRACK_ALLOCATIONS
194 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Object %p from %s\n",
195 object, acpi_gbl_memory_lists[list_id].list_name));
196#endif 117#endif
197 118
198 if (ACPI_FAILURE (acpi_ut_release_mutex (ACPI_MTX_CACHES))) { 119 /* Object Caches, for frequently used objects */
199 return (NULL);
200 }
201
202 /* Clear (zero) the previously used Object */
203 120
204 ACPI_MEMSET (object, 0, cache_info->object_size); 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);
205 } 125 }
206 126
207 else { 127 status = acpi_os_create_cache ("acpi_parse", sizeof (struct acpi_parse_obj_common),
208 /* The cache is empty, create a new object */ 128 ACPI_MAX_PARSE_CACHE_DEPTH, &acpi_gbl_ps_node_cache);
209 129 if (ACPI_FAILURE (status)) {
210 /* Avoid deadlock with ACPI_MEM_CALLOCATE */ 130 return (status);
211
212 if (ACPI_FAILURE (acpi_ut_release_mutex (ACPI_MTX_CACHES))) {
213 return (NULL);
214 }
215
216 object = ACPI_MEM_CALLOCATE (cache_info->object_size);
217 ACPI_MEM_TRACKING (cache_info->total_allocated++);
218 } 131 }
219 132
220#else 133 status = acpi_os_create_cache ("acpi_parse_ext", sizeof (struct acpi_parse_obj_named),
221 134 ACPI_MAX_EXTPARSE_CACHE_DEPTH, &acpi_gbl_ps_node_ext_cache);
222 /* Object cache is disabled; just allocate the object */ 135 if (ACPI_FAILURE (status)) {
136 return (status);
137 }
223 138
224 object = ACPI_MEM_CALLOCATE (cache_info->object_size); 139 status = acpi_os_create_cache ("acpi_operand", sizeof (union acpi_operand_object),
225 ACPI_MEM_TRACKING (cache_info->total_allocated++); 140 ACPI_MAX_OBJECT_CACHE_DEPTH, &acpi_gbl_operand_cache);
226#endif 141 if (ACPI_FAILURE (status)) {
142 return (status);
143 }
227 144
228 return (object); 145 return (AE_OK);
229} 146}
230 147
231 148
232#ifdef ACPI_ENABLE_OBJECT_CACHE
233/******************************************************************************* 149/*******************************************************************************
234 * 150 *
235 * FUNCTION: acpi_ut_delete_generic_cache 151 * FUNCTION: acpi_ut_delete_caches
236 * 152 *
237 * PARAMETERS: list_id - Memory list ID 153 * PARAMETERS: None
238 * 154 *
239 * RETURN: None 155 * RETURN: Status
240 * 156 *
241 * DESCRIPTION: Free all objects within the requested cache. 157 * DESCRIPTION: Purge and delete all local caches
242 * 158 *
243 ******************************************************************************/ 159 ******************************************************************************/
244 160
245void 161acpi_status
246acpi_ut_delete_generic_cache ( 162acpi_ut_delete_caches (
247 u32 list_id) 163 void)
248{ 164{
249 struct acpi_memory_list *cache_info;
250 char *next;
251 165
166 (void) acpi_os_delete_cache (acpi_gbl_state_cache);
167 acpi_gbl_state_cache = NULL;
252 168
253 ACPI_FUNCTION_ENTRY (); 169 (void) acpi_os_delete_cache (acpi_gbl_operand_cache);
254 170 acpi_gbl_operand_cache = NULL;
255 171
256 cache_info = &acpi_gbl_memory_lists[list_id]; 172 (void) acpi_os_delete_cache (acpi_gbl_ps_node_cache);
257 while (cache_info->list_head) { 173 acpi_gbl_ps_node_cache = NULL;
258 /* Delete one cached state object */
259 174
260 next = *(ACPI_CAST_INDIRECT_PTR (char, 175 (void) acpi_os_delete_cache (acpi_gbl_ps_node_ext_cache);
261 &(((char *) cache_info->list_head)[cache_info->link_offset]))); 176 acpi_gbl_ps_node_ext_cache = NULL;
262 ACPI_MEM_FREE (cache_info->list_head);
263 177
264 cache_info->list_head = next; 178 return (AE_OK);
265 cache_info->cache_depth--;
266 }
267} 179}
268#endif
269
270 180
271/******************************************************************************* 181/*******************************************************************************
272 * 182 *
@@ -500,6 +410,43 @@ acpi_ut_callocate (
500 * occurs in the body of acpi_ut_free. 410 * occurs in the body of acpi_ut_free.
501 */ 411 */
502 412
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
427static acpi_status
428acpi_ut_create_list (
429 char *list_name,
430 u16 object_size,
431 acpi_handle *return_cache)
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
503 450
504/******************************************************************************* 451/*******************************************************************************
505 * 452 *
@@ -533,15 +480,15 @@ acpi_ut_allocate_and_track (
533 return (NULL); 480 return (NULL);
534 } 481 }
535 482
536 status = acpi_ut_track_allocation (ACPI_MEM_LIST_GLOBAL, allocation, size, 483 status = acpi_ut_track_allocation (allocation, size,
537 ACPI_MEM_MALLOC, component, module, line); 484 ACPI_MEM_MALLOC, component, module, line);
538 if (ACPI_FAILURE (status)) { 485 if (ACPI_FAILURE (status)) {
539 acpi_os_free (allocation); 486 acpi_os_free (allocation);
540 return (NULL); 487 return (NULL);
541 } 488 }
542 489
543 acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].total_allocated++; 490 acpi_gbl_global_list->total_allocated++;
544 acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].current_total_size += (u32) size; 491 acpi_gbl_global_list->current_total_size += (u32) size;
545 492
546 return ((void *) &allocation->user_space); 493 return ((void *) &allocation->user_space);
547} 494}
@@ -583,15 +530,15 @@ acpi_ut_callocate_and_track (
583 return (NULL); 530 return (NULL);
584 } 531 }
585 532
586 status = acpi_ut_track_allocation (ACPI_MEM_LIST_GLOBAL, allocation, size, 533 status = acpi_ut_track_allocation (allocation, size,
587 ACPI_MEM_CALLOC, component, module, line); 534 ACPI_MEM_CALLOC, component, module, line);
588 if (ACPI_FAILURE (status)) { 535 if (ACPI_FAILURE (status)) {
589 acpi_os_free (allocation); 536 acpi_os_free (allocation);
590 return (NULL); 537 return (NULL);
591 } 538 }
592 539
593 acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].total_allocated++; 540 acpi_gbl_global_list->total_allocated++;
594 acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].current_total_size += (u32) size; 541 acpi_gbl_global_list->current_total_size += (u32) size;
595 542
596 return ((void *) &allocation->user_space); 543 return ((void *) &allocation->user_space);
597} 544}
@@ -636,10 +583,10 @@ acpi_ut_free_and_track (
636 debug_block = ACPI_CAST_PTR (struct acpi_debug_mem_block, 583 debug_block = ACPI_CAST_PTR (struct acpi_debug_mem_block,
637 (((char *) allocation) - sizeof (struct acpi_debug_mem_header))); 584 (((char *) allocation) - sizeof (struct acpi_debug_mem_header)));
638 585
639 acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].total_freed++; 586 acpi_gbl_global_list->total_freed++;
640 acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].current_total_size -= debug_block->size; 587 acpi_gbl_global_list->current_total_size -= debug_block->size;
641 588
642 status = acpi_ut_remove_allocation (ACPI_MEM_LIST_GLOBAL, debug_block, 589 status = acpi_ut_remove_allocation (debug_block,
643 component, module, line); 590 component, module, line);
644 if (ACPI_FAILURE (status)) { 591 if (ACPI_FAILURE (status)) {
645 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not free memory, %s\n", 592 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not free memory, %s\n",
@@ -658,8 +605,7 @@ acpi_ut_free_and_track (
658 * 605 *
659 * FUNCTION: acpi_ut_find_allocation 606 * FUNCTION: acpi_ut_find_allocation
660 * 607 *
661 * PARAMETERS: list_id - Memory list to search 608 * PARAMETERS: Allocation - Address of allocated memory
662 * Allocation - Address of allocated memory
663 * 609 *
664 * RETURN: A list element if found; NULL otherwise. 610 * RETURN: A list element if found; NULL otherwise.
665 * 611 *
@@ -669,7 +615,6 @@ acpi_ut_free_and_track (
669 615
670static struct acpi_debug_mem_block * 616static struct acpi_debug_mem_block *
671acpi_ut_find_allocation ( 617acpi_ut_find_allocation (
672 u32 list_id,
673 void *allocation) 618 void *allocation)
674{ 619{
675 struct acpi_debug_mem_block *element; 620 struct acpi_debug_mem_block *element;
@@ -678,11 +623,7 @@ acpi_ut_find_allocation (
678 ACPI_FUNCTION_ENTRY (); 623 ACPI_FUNCTION_ENTRY ();
679 624
680 625
681 if (list_id > ACPI_MEM_LIST_MAX) { 626 element = acpi_gbl_global_list->list_head;
682 return (NULL);
683 }
684
685 element = acpi_gbl_memory_lists[list_id].list_head;
686 627
687 /* Search for the address. */ 628 /* Search for the address. */
688 629
@@ -702,8 +643,7 @@ acpi_ut_find_allocation (
702 * 643 *
703 * FUNCTION: acpi_ut_track_allocation 644 * FUNCTION: acpi_ut_track_allocation
704 * 645 *
705 * PARAMETERS: list_id - Memory list to search 646 * PARAMETERS: Allocation - Address of allocated memory
706 * Allocation - Address of allocated memory
707 * Size - Size of the allocation 647 * Size - Size of the allocation
708 * alloc_type - MEM_MALLOC or MEM_CALLOC 648 * alloc_type - MEM_MALLOC or MEM_CALLOC
709 * Component - Component type of caller 649 * Component - Component type of caller
@@ -718,7 +658,6 @@ acpi_ut_find_allocation (
718 658
719static acpi_status 659static acpi_status
720acpi_ut_track_allocation ( 660acpi_ut_track_allocation (
721 u32 list_id,
722 struct acpi_debug_mem_block *allocation, 661 struct acpi_debug_mem_block *allocation,
723 acpi_size size, 662 acpi_size size,
724 u8 alloc_type, 663 u8 alloc_type,
@@ -734,11 +673,7 @@ acpi_ut_track_allocation (
734 ACPI_FUNCTION_TRACE_PTR ("ut_track_allocation", allocation); 673 ACPI_FUNCTION_TRACE_PTR ("ut_track_allocation", allocation);
735 674
736 675
737 if (list_id > ACPI_MEM_LIST_MAX) { 676 mem_list = acpi_gbl_global_list;
738 return_ACPI_STATUS (AE_BAD_PARAMETER);
739 }
740
741 mem_list = &acpi_gbl_memory_lists[list_id];
742 status = acpi_ut_acquire_mutex (ACPI_MTX_MEMORY); 677 status = acpi_ut_acquire_mutex (ACPI_MTX_MEMORY);
743 if (ACPI_FAILURE (status)) { 678 if (ACPI_FAILURE (status)) {
744 return_ACPI_STATUS (status); 679 return_ACPI_STATUS (status);
@@ -748,8 +683,7 @@ acpi_ut_track_allocation (
748 * Search list for this address to make sure it is not already on the list. 683 * Search list for this address to make sure it is not already on the list.
749 * This will catch several kinds of problems. 684 * This will catch several kinds of problems.
750 */ 685 */
751 686 element = acpi_ut_find_allocation (allocation);
752 element = acpi_ut_find_allocation (list_id, allocation);
753 if (element) { 687 if (element) {
754 ACPI_REPORT_ERROR (( 688 ACPI_REPORT_ERROR ((
755 "ut_track_allocation: Allocation already present in list! (%p)\n", 689 "ut_track_allocation: Allocation already present in list! (%p)\n",
@@ -793,8 +727,7 @@ unlock_and_exit:
793 * 727 *
794 * FUNCTION: acpi_ut_remove_allocation 728 * FUNCTION: acpi_ut_remove_allocation
795 * 729 *
796 * PARAMETERS: list_id - Memory list to search 730 * PARAMETERS: Allocation - Address of allocated memory
797 * Allocation - Address of allocated memory
798 * Component - Component type of caller 731 * Component - Component type of caller
799 * Module - Source file name of caller 732 * Module - Source file name of caller
800 * Line - Line number of caller 733 * Line - Line number of caller
@@ -807,7 +740,6 @@ unlock_and_exit:
807 740
808static acpi_status 741static acpi_status
809acpi_ut_remove_allocation ( 742acpi_ut_remove_allocation (
810 u32 list_id,
811 struct acpi_debug_mem_block *allocation, 743 struct acpi_debug_mem_block *allocation,
812 u32 component, 744 u32 component,
813 char *module, 745 char *module,
@@ -820,11 +752,7 @@ acpi_ut_remove_allocation (
820 ACPI_FUNCTION_TRACE ("ut_remove_allocation"); 752 ACPI_FUNCTION_TRACE ("ut_remove_allocation");
821 753
822 754
823 if (list_id > ACPI_MEM_LIST_MAX) { 755 mem_list = acpi_gbl_global_list;
824 return_ACPI_STATUS (AE_BAD_PARAMETER);
825 }
826
827 mem_list = &acpi_gbl_memory_lists[list_id];
828 if (NULL == mem_list->list_head) { 756 if (NULL == mem_list->list_head) {
829 /* No allocations! */ 757 /* No allocations! */
830 758
@@ -959,7 +887,7 @@ acpi_ut_dump_allocations (
959 return; 887 return;
960 } 888 }
961 889
962 element = acpi_gbl_memory_lists[0].list_head; 890 element = acpi_gbl_global_list->list_head;
963 while (element) { 891 while (element) {
964 if ((element->component & component) && 892 if ((element->component & component) &&
965 ((module == NULL) || (0 == ACPI_STRCMP (module, element->module)))) { 893 ((module == NULL) || (0 == ACPI_STRCMP (module, element->module)))) {
diff --git a/drivers/acpi/utilities/utcache.c b/drivers/acpi/utilities/utcache.c
new file mode 100644
index 000000000000..07588812e72d
--- /dev/null
+++ b/drivers/acpi/utilities/utcache.c
@@ -0,0 +1,322 @@
1/******************************************************************************
2 *
3 * Module Name: utcache - local cache allocation routines
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 ("utcache")
49
50
51#ifdef ACPI_USE_LOCAL_CACHE
52/*******************************************************************************
53 *
54 * FUNCTION: acpi_os_create_cache
55 *
56 * PARAMETERS: cache_name - Ascii name for the cache
57 * object_size - Size of each cached object
58 * max_depth - Maximum depth of the cache (in objects)
59 * return_cache - Where the new cache object is returned
60 *
61 * RETURN: Status
62 *
63 * DESCRIPTION: Create a cache object
64 *
65 ******************************************************************************/
66
67acpi_status
68acpi_os_create_cache (
69 char *cache_name,
70 u16 object_size,
71 u16 max_depth,
72 struct acpi_memory_list **return_cache)
73{
74 struct acpi_memory_list *cache;
75
76
77 if (!cache_name || !return_cache || (object_size < 16)) {
78 return (AE_BAD_PARAMETER);
79 }
80
81 /* Create the cache object */
82
83 cache = acpi_os_allocate (sizeof (struct acpi_memory_list));
84 if (!cache) {
85 return (AE_NO_MEMORY);
86 }
87
88 /* Populate the cache object and return it */
89
90 ACPI_MEMSET (cache, 0, sizeof (struct acpi_memory_list));
91 cache->link_offset = 8;
92 cache->list_name = cache_name;
93 cache->object_size = object_size;
94 cache->max_depth = max_depth;
95
96 *return_cache = cache;
97 return (AE_OK);
98}
99
100
101/*******************************************************************************
102 *
103 * FUNCTION: acpi_os_purge_cache
104 *
105 * PARAMETERS: Cache - Handle to cache object
106 *
107 * RETURN: Status
108 *
109 * DESCRIPTION: Free all objects within the requested cache.
110 *
111 ******************************************************************************/
112
113acpi_status
114acpi_os_purge_cache (
115 struct acpi_memory_list *cache)
116{
117 char *next;
118
119
120 ACPI_FUNCTION_ENTRY ();
121
122
123 if (!cache) {
124 return (AE_BAD_PARAMETER);
125 }
126
127 /* Walk the list of objects in this cache */
128
129 while (cache->list_head) {
130 /* Delete and unlink one cached state object */
131
132 next = *(ACPI_CAST_INDIRECT_PTR (char,
133 &(((char *) cache->list_head)[cache->link_offset])));
134 ACPI_MEM_FREE (cache->list_head);
135
136 cache->list_head = next;
137 cache->current_depth--;
138 }
139
140 return (AE_OK);
141}
142
143
144/*******************************************************************************
145 *
146 * FUNCTION: acpi_os_delete_cache
147 *
148 * PARAMETERS: Cache - Handle to cache object
149 *
150 * RETURN: Status
151 *
152 * DESCRIPTION: Free all objects within the requested cache and delete the
153 * cache object.
154 *
155 ******************************************************************************/
156
157acpi_status
158acpi_os_delete_cache (
159 struct acpi_memory_list *cache)
160{
161 acpi_status status;
162
163
164 /* Purge all objects in the cache */
165
166 status = acpi_os_purge_cache (cache);
167 if (ACPI_FAILURE (status)) {
168 return (status);
169 }
170
171 /* Now we can delete the cache object */
172
173 acpi_os_free (cache);
174 return (AE_OK);
175}
176
177
178/*******************************************************************************
179 *
180 * FUNCTION: acpi_os_release_object
181 *
182 * PARAMETERS: Cache - Handle to cache object
183 * Object - The object to be released
184 *
185 * RETURN: None
186 *
187 * DESCRIPTION: Release an object to the specified cache. If cache is full,
188 * the object is deleted.
189 *
190 ******************************************************************************/
191
192acpi_status
193acpi_os_release_object (
194 struct acpi_memory_list *cache,
195 void *object)
196{
197 acpi_status status;
198
199
200 ACPI_FUNCTION_ENTRY ();
201
202
203 if (!cache || !object) {
204 return (AE_BAD_PARAMETER);
205 }
206
207 /* If cache is full, just free this object */
208
209 if (cache->current_depth >= cache->max_depth) {
210 ACPI_MEM_FREE (object);
211 ACPI_MEM_TRACKING (cache->total_freed++);
212 }
213
214 /* Otherwise put this object back into the cache */
215
216 else {
217 status = acpi_ut_acquire_mutex (ACPI_MTX_CACHES);
218 if (ACPI_FAILURE (status)) {
219 return (status);
220 }
221
222 /* Mark the object as cached */
223
224 ACPI_MEMSET (object, 0xCA, cache->object_size);
225 ACPI_SET_DESCRIPTOR_TYPE (object, ACPI_DESC_TYPE_CACHED);
226
227 /* Put the object at the head of the cache list */
228
229 * (ACPI_CAST_INDIRECT_PTR (char,
230 &(((char *) object)[cache->link_offset]))) = cache->list_head;
231 cache->list_head = object;
232 cache->current_depth++;
233
234 (void) acpi_ut_release_mutex (ACPI_MTX_CACHES);
235 }
236
237 return (AE_OK);
238}
239
240
241/*******************************************************************************
242 *
243 * FUNCTION: acpi_os_acquire_object
244 *
245 * PARAMETERS: Cache - Handle to cache object
246 *
247 * RETURN: the acquired object. NULL on error
248 *
249 * DESCRIPTION: Get an object from the specified cache. If cache is empty,
250 * the object is allocated.
251 *
252 ******************************************************************************/
253
254void *
255acpi_os_acquire_object (
256 struct acpi_memory_list *cache)
257{
258 acpi_status status;
259 void *object;
260
261
262 ACPI_FUNCTION_NAME ("ut_acquire_from_cache");
263
264
265 if (!cache) {
266 return (NULL);
267 }
268
269 status = acpi_ut_acquire_mutex (ACPI_MTX_CACHES);
270 if (ACPI_FAILURE (status)) {
271 return (NULL);
272 }
273
274 ACPI_MEM_TRACKING (cache->requests++);
275
276 /* Check the cache first */
277
278 if (cache->list_head) {
279 /* There is an object available, use it */
280
281 object = cache->list_head;
282 cache->list_head = *(ACPI_CAST_INDIRECT_PTR (char,
283 &(((char *) object)[cache->link_offset])));
284
285 cache->current_depth--;
286
287 ACPI_MEM_TRACKING (cache->hits++);
288 ACPI_MEM_TRACKING (ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
289 "Object %p from %s\n", object, cache->list_name)));
290
291 status = acpi_ut_release_mutex (ACPI_MTX_CACHES);
292 if (ACPI_FAILURE (status)) {
293 return (NULL);
294 }
295
296 /* Clear (zero) the previously used Object */
297
298 ACPI_MEMSET (object, 0, cache->object_size);
299 }
300 else {
301 /* The cache is empty, create a new object */
302
303 ACPI_MEM_TRACKING (cache->total_allocated++);
304
305 /* Avoid deadlock with ACPI_MEM_CALLOCATE */
306
307 status = acpi_ut_release_mutex (ACPI_MTX_CACHES);
308 if (ACPI_FAILURE (status)) {
309 return (NULL);
310 }
311
312 object = ACPI_MEM_CALLOCATE (cache->object_size);
313 if (!object) {
314 return (NULL);
315 }
316 }
317
318 return (object);
319}
320#endif /* ACPI_USE_LOCAL_CACHE */
321
322
diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c
index 794c7df3f2ad..08362f686ec1 100644
--- a/drivers/acpi/utilities/utdebug.c
+++ b/drivers/acpi/utilities/utdebug.c
@@ -549,7 +549,7 @@ acpi_ut_dump_buffer (
549 /* Dump fill spaces */ 549 /* Dump fill spaces */
550 550
551 acpi_os_printf ("%*s", ((display * 2) + 1), " "); 551 acpi_os_printf ("%*s", ((display * 2) + 1), " ");
552 j += display; 552 j += (acpi_native_uint) display;
553 continue; 553 continue;
554 } 554 }
555 555
@@ -584,7 +584,7 @@ acpi_ut_dump_buffer (
584 break; 584 break;
585 } 585 }
586 586
587 j += display; 587 j += (acpi_native_uint) display;
588 } 588 }
589 589
590 /* 590 /*
diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index 4146019b543f..8653dda4f813 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -820,42 +820,20 @@ void
820acpi_ut_init_globals ( 820acpi_ut_init_globals (
821 void) 821 void)
822{ 822{
823 acpi_status status;
823 u32 i; 824 u32 i;
824 825
825 826
826 ACPI_FUNCTION_TRACE ("ut_init_globals"); 827 ACPI_FUNCTION_TRACE ("ut_init_globals");
827 828
828 829
829 /* Memory allocation and cache lists */ 830 /* Create all memory caches */
830 831
831 ACPI_MEMSET (acpi_gbl_memory_lists, 0, sizeof (struct acpi_memory_list) * ACPI_NUM_MEM_LISTS); 832 status = acpi_ut_create_caches ();
832 833 if (ACPI_FAILURE (status))
833 acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_generic_state *) NULL)->common.next), NULL); 834 {
834 acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_parse_object *) NULL)->common.next), NULL); 835 return;
835 acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_parse_object *) NULL)->common.next), NULL); 836 }
836 acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].link_offset = (u16) ACPI_PTR_DIFF (&(((union acpi_operand_object *) NULL)->cache.next), NULL);
837 acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].link_offset = (u16) ACPI_PTR_DIFF (&(((struct acpi_walk_state *) NULL)->next), NULL);
838
839 acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].object_size = sizeof (struct acpi_namespace_node);
840 acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].object_size = sizeof (union acpi_generic_state);
841 acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].object_size = sizeof (struct acpi_parse_obj_common);
842 acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].object_size = sizeof (struct acpi_parse_obj_named);
843 acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].object_size = sizeof (union acpi_operand_object);
844 acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].object_size = sizeof (struct acpi_walk_state);
845
846 acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].max_cache_depth = ACPI_MAX_STATE_CACHE_DEPTH;
847 acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].max_cache_depth = ACPI_MAX_PARSE_CACHE_DEPTH;
848 acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].max_cache_depth = ACPI_MAX_EXTPARSE_CACHE_DEPTH;
849 acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].max_cache_depth = ACPI_MAX_OBJECT_CACHE_DEPTH;
850 acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].max_cache_depth = ACPI_MAX_WALK_CACHE_DEPTH;
851
852 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_GLOBAL].list_name = "Global Memory Allocation");
853 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].list_name = "Namespace Nodes");
854 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_STATE].list_name = "State Object Cache");
855 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE].list_name = "Parse Node Cache");
856 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_PSNODE_EXT].list_name = "Extended Parse Node Cache");
857 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_OPERAND].list_name = "Operand Object Cache");
858 ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_WALK].list_name = "Tree Walk Node Cache");
859 837
860 /* ACPI table structure */ 838 /* ACPI table structure */
861 839
diff --git a/drivers/acpi/utilities/utinit.c b/drivers/acpi/utilities/utinit.c
index 7f3713889ff0..fd7ceba83229 100644
--- a/drivers/acpi/utilities/utinit.c
+++ b/drivers/acpi/utilities/utinit.c
@@ -264,7 +264,7 @@ acpi_ut_subsystem_shutdown (
264 264
265 /* Purge the local caches */ 265 /* Purge the local caches */
266 266
267 (void) acpi_purge_cached_objects (); 267 (void) acpi_ut_delete_caches ();
268 268
269 /* Debug only - display leftover memory allocation, if any */ 269 /* Debug only - display leftover memory allocation, if any */
270 270
diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c
index bb658777fa88..207c836aec64 100644
--- a/drivers/acpi/utilities/utmisc.c
+++ b/drivers/acpi/utilities/utmisc.c
@@ -49,16 +49,6 @@
49#define _COMPONENT ACPI_UTILITIES 49#define _COMPONENT ACPI_UTILITIES
50 ACPI_MODULE_NAME ("utmisc") 50 ACPI_MODULE_NAME ("utmisc")
51 51
52/* Local prototypes */
53
54static acpi_status
55acpi_ut_create_mutex (
56 acpi_mutex_handle mutex_id);
57
58static acpi_status
59acpi_ut_delete_mutex (
60 acpi_mutex_handle mutex_id);
61
62 52
63/******************************************************************************* 53/*******************************************************************************
64 * 54 *
@@ -84,6 +74,10 @@ acpi_ut_strupr (
84 ACPI_FUNCTION_ENTRY (); 74 ACPI_FUNCTION_ENTRY ();
85 75
86 76
77 if (!src_string) {
78 return (NULL);
79 }
80
87 /* Walk entire string, uppercasing the letters */ 81 /* Walk entire string, uppercasing the letters */
88 82
89 for (string = src_string; *string; string++) { 83 for (string = src_string; *string; string++) {
@@ -543,326 +537,6 @@ error_exit:
543 537
544/******************************************************************************* 538/*******************************************************************************
545 * 539 *
546 * FUNCTION: acpi_ut_mutex_initialize
547 *
548 * PARAMETERS: None.
549 *
550 * RETURN: Status
551 *
552 * DESCRIPTION: Create the system mutex objects.
553 *
554 ******************************************************************************/
555
556acpi_status
557acpi_ut_mutex_initialize (
558 void)
559{
560 u32 i;
561 acpi_status status;
562
563
564 ACPI_FUNCTION_TRACE ("ut_mutex_initialize");
565
566
567 /*
568 * Create each of the predefined mutex objects
569 */
570 for (i = 0; i < NUM_MUTEX; i++) {
571 status = acpi_ut_create_mutex (i);
572 if (ACPI_FAILURE (status)) {
573 return_ACPI_STATUS (status);
574 }
575 }
576
577 status = acpi_os_create_lock (&acpi_gbl_gpe_lock);
578 return_ACPI_STATUS (status);
579}
580
581
582/*******************************************************************************
583 *
584 * FUNCTION: acpi_ut_mutex_terminate
585 *
586 * PARAMETERS: None.
587 *
588 * RETURN: None.
589 *
590 * DESCRIPTION: Delete all of the system mutex objects.
591 *
592 ******************************************************************************/
593
594void
595acpi_ut_mutex_terminate (
596 void)
597{
598 u32 i;
599
600
601 ACPI_FUNCTION_TRACE ("ut_mutex_terminate");
602
603
604 /*
605 * Delete each predefined mutex object
606 */
607 for (i = 0; i < NUM_MUTEX; i++) {
608 (void) acpi_ut_delete_mutex (i);
609 }
610
611 acpi_os_delete_lock (acpi_gbl_gpe_lock);
612 return_VOID;
613}
614
615
616/*******************************************************************************
617 *
618 * FUNCTION: acpi_ut_create_mutex
619 *
620 * PARAMETERS: mutex_iD - ID of the mutex to be created
621 *
622 * RETURN: Status
623 *
624 * DESCRIPTION: Create a mutex object.
625 *
626 ******************************************************************************/
627
628static acpi_status
629acpi_ut_create_mutex (
630 acpi_mutex_handle mutex_id)
631{
632 acpi_status status = AE_OK;
633
634
635 ACPI_FUNCTION_TRACE_U32 ("ut_create_mutex", mutex_id);
636
637
638 if (mutex_id > MAX_MUTEX) {
639 return_ACPI_STATUS (AE_BAD_PARAMETER);
640 }
641
642 if (!acpi_gbl_mutex_info[mutex_id].mutex) {
643 status = acpi_os_create_semaphore (1, 1,
644 &acpi_gbl_mutex_info[mutex_id].mutex);
645 acpi_gbl_mutex_info[mutex_id].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
646 acpi_gbl_mutex_info[mutex_id].use_count = 0;
647 }
648
649 return_ACPI_STATUS (status);
650}
651
652
653/*******************************************************************************
654 *
655 * FUNCTION: acpi_ut_delete_mutex
656 *
657 * PARAMETERS: mutex_iD - ID of the mutex to be deleted
658 *
659 * RETURN: Status
660 *
661 * DESCRIPTION: Delete a mutex object.
662 *
663 ******************************************************************************/
664
665static acpi_status
666acpi_ut_delete_mutex (
667 acpi_mutex_handle mutex_id)
668{
669 acpi_status status;
670
671
672 ACPI_FUNCTION_TRACE_U32 ("ut_delete_mutex", mutex_id);
673
674
675 if (mutex_id > MAX_MUTEX) {
676 return_ACPI_STATUS (AE_BAD_PARAMETER);
677 }
678
679 status = acpi_os_delete_semaphore (acpi_gbl_mutex_info[mutex_id].mutex);
680
681 acpi_gbl_mutex_info[mutex_id].mutex = NULL;
682 acpi_gbl_mutex_info[mutex_id].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
683
684 return_ACPI_STATUS (status);
685}
686
687
688/*******************************************************************************
689 *
690 * FUNCTION: acpi_ut_acquire_mutex
691 *
692 * PARAMETERS: mutex_iD - ID of the mutex to be acquired
693 *
694 * RETURN: Status
695 *
696 * DESCRIPTION: Acquire a mutex object.
697 *
698 ******************************************************************************/
699
700acpi_status
701acpi_ut_acquire_mutex (
702 acpi_mutex_handle mutex_id)
703{
704 acpi_status status;
705 u32 this_thread_id;
706
707
708 ACPI_FUNCTION_NAME ("ut_acquire_mutex");
709
710
711 if (mutex_id > MAX_MUTEX) {
712 return (AE_BAD_PARAMETER);
713 }
714
715 this_thread_id = acpi_os_get_thread_id ();
716
717#ifdef ACPI_MUTEX_DEBUG
718 {
719 u32 i;
720 /*
721 * Mutex debug code, for internal debugging only.
722 *
723 * Deadlock prevention. Check if this thread owns any mutexes of value
724 * greater than or equal to this one. If so, the thread has violated
725 * the mutex ordering rule. This indicates a coding error somewhere in
726 * the ACPI subsystem code.
727 */
728 for (i = mutex_id; i < MAX_MUTEX; i++) {
729 if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) {
730 if (i == mutex_id) {
731 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
732 "Mutex [%s] already acquired by this thread [%X]\n",
733 acpi_ut_get_mutex_name (mutex_id), this_thread_id));
734
735 return (AE_ALREADY_ACQUIRED);
736 }
737
738 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
739 "Invalid acquire order: Thread %X owns [%s], wants [%s]\n",
740 this_thread_id, acpi_ut_get_mutex_name (i),
741 acpi_ut_get_mutex_name (mutex_id)));
742
743 return (AE_ACQUIRE_DEADLOCK);
744 }
745 }
746 }
747#endif
748
749 ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX,
750 "Thread %X attempting to acquire Mutex [%s]\n",
751 this_thread_id, acpi_ut_get_mutex_name (mutex_id)));
752
753 status = acpi_os_wait_semaphore (acpi_gbl_mutex_info[mutex_id].mutex,
754 1, ACPI_WAIT_FOREVER);
755 if (ACPI_SUCCESS (status)) {
756 ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X acquired Mutex [%s]\n",
757 this_thread_id, acpi_ut_get_mutex_name (mutex_id)));
758
759 acpi_gbl_mutex_info[mutex_id].use_count++;
760 acpi_gbl_mutex_info[mutex_id].owner_id = this_thread_id;
761 }
762 else {
763 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
764 "Thread %X could not acquire Mutex [%s] %s\n",
765 this_thread_id, acpi_ut_get_mutex_name (mutex_id),
766 acpi_format_exception (status)));
767 }
768
769 return (status);
770}
771
772
773/*******************************************************************************
774 *
775 * FUNCTION: acpi_ut_release_mutex
776 *
777 * PARAMETERS: mutex_iD - ID of the mutex to be released
778 *
779 * RETURN: Status
780 *
781 * DESCRIPTION: Release a mutex object.
782 *
783 ******************************************************************************/
784
785acpi_status
786acpi_ut_release_mutex (
787 acpi_mutex_handle mutex_id)
788{
789 acpi_status status;
790 u32 this_thread_id;
791
792
793 ACPI_FUNCTION_NAME ("ut_release_mutex");
794
795
796 this_thread_id = acpi_os_get_thread_id ();
797 ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX,
798 "Thread %X releasing Mutex [%s]\n", this_thread_id,
799 acpi_ut_get_mutex_name (mutex_id)));
800
801 if (mutex_id > MAX_MUTEX) {
802 return (AE_BAD_PARAMETER);
803 }
804
805 /*
806 * Mutex must be acquired in order to release it!
807 */
808 if (acpi_gbl_mutex_info[mutex_id].owner_id == ACPI_MUTEX_NOT_ACQUIRED) {
809 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
810 "Mutex [%s] is not acquired, cannot release\n",
811 acpi_ut_get_mutex_name (mutex_id)));
812
813 return (AE_NOT_ACQUIRED);
814 }
815
816#ifdef ACPI_MUTEX_DEBUG
817 {
818 u32 i;
819 /*
820 * Mutex debug code, for internal debugging only.
821 *
822 * Deadlock prevention. Check if this thread owns any mutexes of value
823 * greater than this one. If so, the thread has violated the mutex
824 * ordering rule. This indicates a coding error somewhere in
825 * the ACPI subsystem code.
826 */
827 for (i = mutex_id; i < MAX_MUTEX; i++) {
828 if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) {
829 if (i == mutex_id) {
830 continue;
831 }
832
833 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
834 "Invalid release order: owns [%s], releasing [%s]\n",
835 acpi_ut_get_mutex_name (i), acpi_ut_get_mutex_name (mutex_id)));
836
837 return (AE_RELEASE_DEADLOCK);
838 }
839 }
840 }
841#endif
842
843 /* Mark unlocked FIRST */
844
845 acpi_gbl_mutex_info[mutex_id].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
846
847 status = acpi_os_signal_semaphore (acpi_gbl_mutex_info[mutex_id].mutex, 1);
848
849 if (ACPI_FAILURE (status)) {
850 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
851 "Thread %X could not release Mutex [%s] %s\n",
852 this_thread_id, acpi_ut_get_mutex_name (mutex_id),
853 acpi_format_exception (status)));
854 }
855 else {
856 ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X released Mutex [%s]\n",
857 this_thread_id, acpi_ut_get_mutex_name (mutex_id)));
858 }
859
860 return (status);
861}
862
863
864/*******************************************************************************
865 *
866 * FUNCTION: acpi_ut_create_update_state_and_push 540 * FUNCTION: acpi_ut_create_update_state_and_push
867 * 541 *
868 * PARAMETERS: Object - Object to be added to the new state 542 * PARAMETERS: Object - Object to be added to the new state
@@ -905,361 +579,6 @@ acpi_ut_create_update_state_and_push (
905 579
906/******************************************************************************* 580/*******************************************************************************
907 * 581 *
908 * FUNCTION: acpi_ut_create_pkg_state_and_push
909 *
910 * PARAMETERS: Object - Object to be added to the new state
911 * Action - Increment/Decrement
912 * state_list - List the state will be added to
913 *
914 * RETURN: Status
915 *
916 * DESCRIPTION: Create a new state and push it
917 *
918 ******************************************************************************/
919
920#ifdef ACPI_FUTURE_USAGE
921acpi_status
922acpi_ut_create_pkg_state_and_push (
923 void *internal_object,
924 void *external_object,
925 u16 index,
926 union acpi_generic_state **state_list)
927{
928 union acpi_generic_state *state;
929
930
931 ACPI_FUNCTION_ENTRY ();
932
933
934 state = acpi_ut_create_pkg_state (internal_object, external_object, index);
935 if (!state) {
936 return (AE_NO_MEMORY);
937 }
938
939 acpi_ut_push_generic_state (state_list, state);
940 return (AE_OK);
941}
942#endif /* ACPI_FUTURE_USAGE */
943
944/*******************************************************************************
945 *
946 * FUNCTION: acpi_ut_push_generic_state
947 *
948 * PARAMETERS: list_head - Head of the state stack
949 * State - State object to push
950 *
951 * RETURN: None
952 *
953 * DESCRIPTION: Push a state object onto a state stack
954 *
955 ******************************************************************************/
956
957void
958acpi_ut_push_generic_state (
959 union acpi_generic_state **list_head,
960 union acpi_generic_state *state)
961{
962 ACPI_FUNCTION_TRACE ("ut_push_generic_state");
963
964
965 /* Push the state object onto the front of the list (stack) */
966
967 state->common.next = *list_head;
968 *list_head = state;
969
970 return_VOID;
971}
972
973
974/*******************************************************************************
975 *
976 * FUNCTION: acpi_ut_pop_generic_state
977 *
978 * PARAMETERS: list_head - Head of the state stack
979 *
980 * RETURN: The popped state object
981 *
982 * DESCRIPTION: Pop a state object from a state stack
983 *
984 ******************************************************************************/
985
986union acpi_generic_state *
987acpi_ut_pop_generic_state (
988 union acpi_generic_state **list_head)
989{
990 union acpi_generic_state *state;
991
992
993 ACPI_FUNCTION_TRACE ("ut_pop_generic_state");
994
995
996 /* Remove the state object at the head of the list (stack) */
997
998 state = *list_head;
999 if (state) {
1000 /* Update the list head */
1001
1002 *list_head = state->common.next;
1003 }
1004
1005 return_PTR (state);
1006}
1007
1008
1009/*******************************************************************************
1010 *
1011 * FUNCTION: acpi_ut_create_generic_state
1012 *
1013 * PARAMETERS: None
1014 *
1015 * RETURN: The new state object. NULL on failure.
1016 *
1017 * DESCRIPTION: Create a generic state object. Attempt to obtain one from
1018 * the global state cache; If none available, create a new one.
1019 *
1020 ******************************************************************************/
1021
1022union acpi_generic_state *
1023acpi_ut_create_generic_state (
1024 void)
1025{
1026 union acpi_generic_state *state;
1027
1028
1029 ACPI_FUNCTION_ENTRY ();
1030
1031
1032 state = acpi_ut_acquire_from_cache (ACPI_MEM_LIST_STATE);
1033
1034 /* Initialize */
1035
1036 if (state) {
1037 state->common.data_type = ACPI_DESC_TYPE_STATE;
1038 }
1039
1040 return (state);
1041}
1042
1043
1044/*******************************************************************************
1045 *
1046 * FUNCTION: acpi_ut_create_thread_state
1047 *
1048 * PARAMETERS: None
1049 *
1050 * RETURN: New Thread State. NULL on failure
1051 *
1052 * DESCRIPTION: Create a "Thread State" - a flavor of the generic state used
1053 * to track per-thread info during method execution
1054 *
1055 ******************************************************************************/
1056
1057struct acpi_thread_state *
1058acpi_ut_create_thread_state (
1059 void)
1060{
1061 union acpi_generic_state *state;
1062
1063
1064 ACPI_FUNCTION_TRACE ("ut_create_thread_state");
1065
1066
1067 /* Create the generic state object */
1068
1069 state = acpi_ut_create_generic_state ();
1070 if (!state) {
1071 return_PTR (NULL);
1072 }
1073
1074 /* Init fields specific to the update struct */
1075
1076 state->common.data_type = ACPI_DESC_TYPE_STATE_THREAD;
1077 state->thread.thread_id = acpi_os_get_thread_id ();
1078
1079 return_PTR ((struct acpi_thread_state *) state);
1080}
1081
1082
1083/*******************************************************************************
1084 *
1085 * FUNCTION: acpi_ut_create_update_state
1086 *
1087 * PARAMETERS: Object - Initial Object to be installed in the state
1088 * Action - Update action to be performed
1089 *
1090 * RETURN: New state object, null on failure
1091 *
1092 * DESCRIPTION: Create an "Update State" - a flavor of the generic state used
1093 * to update reference counts and delete complex objects such
1094 * as packages.
1095 *
1096 ******************************************************************************/
1097
1098union acpi_generic_state *
1099acpi_ut_create_update_state (
1100 union acpi_operand_object *object,
1101 u16 action)
1102{
1103 union acpi_generic_state *state;
1104
1105
1106 ACPI_FUNCTION_TRACE_PTR ("ut_create_update_state", object);
1107
1108
1109 /* Create the generic state object */
1110
1111 state = acpi_ut_create_generic_state ();
1112 if (!state) {
1113 return_PTR (NULL);
1114 }
1115
1116 /* Init fields specific to the update struct */
1117
1118 state->common.data_type = ACPI_DESC_TYPE_STATE_UPDATE;
1119 state->update.object = object;
1120 state->update.value = action;
1121
1122 return_PTR (state);
1123}
1124
1125
1126/*******************************************************************************
1127 *
1128 * FUNCTION: acpi_ut_create_pkg_state
1129 *
1130 * PARAMETERS: Object - Initial Object to be installed in the state
1131 * Action - Update action to be performed
1132 *
1133 * RETURN: New state object, null on failure
1134 *
1135 * DESCRIPTION: Create a "Package State"
1136 *
1137 ******************************************************************************/
1138
1139union acpi_generic_state *
1140acpi_ut_create_pkg_state (
1141 void *internal_object,
1142 void *external_object,
1143 u16 index)
1144{
1145 union acpi_generic_state *state;
1146
1147
1148 ACPI_FUNCTION_TRACE_PTR ("ut_create_pkg_state", internal_object);
1149
1150
1151 /* Create the generic state object */
1152
1153 state = acpi_ut_create_generic_state ();
1154 if (!state) {
1155 return_PTR (NULL);
1156 }
1157
1158 /* Init fields specific to the update struct */
1159
1160 state->common.data_type = ACPI_DESC_TYPE_STATE_PACKAGE;
1161 state->pkg.source_object = (union acpi_operand_object *) internal_object;
1162 state->pkg.dest_object = external_object;
1163 state->pkg.index = index;
1164 state->pkg.num_packages = 1;
1165
1166 return_PTR (state);
1167}
1168
1169
1170/*******************************************************************************
1171 *
1172 * FUNCTION: acpi_ut_create_control_state
1173 *
1174 * PARAMETERS: None
1175 *
1176 * RETURN: New state object, null on failure
1177 *
1178 * DESCRIPTION: Create a "Control State" - a flavor of the generic state used
1179 * to support nested IF/WHILE constructs in the AML.
1180 *
1181 ******************************************************************************/
1182
1183union acpi_generic_state *
1184acpi_ut_create_control_state (
1185 void)
1186{
1187 union acpi_generic_state *state;
1188
1189
1190 ACPI_FUNCTION_TRACE ("ut_create_control_state");
1191
1192
1193 /* Create the generic state object */
1194
1195 state = acpi_ut_create_generic_state ();
1196 if (!state) {
1197 return_PTR (NULL);
1198 }
1199
1200 /* Init fields specific to the control struct */
1201
1202 state->common.data_type = ACPI_DESC_TYPE_STATE_CONTROL;
1203 state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING;
1204
1205 return_PTR (state);
1206}
1207
1208
1209/*******************************************************************************
1210 *
1211 * FUNCTION: acpi_ut_delete_generic_state
1212 *
1213 * PARAMETERS: State - The state object to be deleted
1214 *
1215 * RETURN: None
1216 *
1217 * DESCRIPTION: Put a state object back into the global state cache. The object
1218 * is not actually freed at this time.
1219 *
1220 ******************************************************************************/
1221
1222void
1223acpi_ut_delete_generic_state (
1224 union acpi_generic_state *state)
1225{
1226 ACPI_FUNCTION_TRACE ("ut_delete_generic_state");
1227
1228
1229 acpi_ut_release_to_cache (ACPI_MEM_LIST_STATE, state);
1230 return_VOID;
1231}
1232
1233
1234#ifdef ACPI_ENABLE_OBJECT_CACHE
1235/*******************************************************************************
1236 *
1237 * FUNCTION: acpi_ut_delete_generic_state_cache
1238 *
1239 * PARAMETERS: None
1240 *
1241 * RETURN: None
1242 *
1243 * DESCRIPTION: Purge the global state object cache. Used during subsystem
1244 * termination.
1245 *
1246 ******************************************************************************/
1247
1248void
1249acpi_ut_delete_generic_state_cache (
1250 void)
1251{
1252 ACPI_FUNCTION_TRACE ("ut_delete_generic_state_cache");
1253
1254
1255 acpi_ut_delete_generic_cache (ACPI_MEM_LIST_STATE);
1256 return_VOID;
1257}
1258#endif
1259
1260
1261/*******************************************************************************
1262 *
1263 * FUNCTION: acpi_ut_walk_package_tree 582 * FUNCTION: acpi_ut_walk_package_tree
1264 * 583 *
1265 * PARAMETERS: source_object - The package to walk 584 * PARAMETERS: source_object - The package to walk
diff --git a/drivers/acpi/utilities/utmutex.c b/drivers/acpi/utilities/utmutex.c
new file mode 100644
index 000000000000..a80b97cb2e56
--- /dev/null
+++ b/drivers/acpi/utilities/utmutex.c
@@ -0,0 +1,380 @@
1/*******************************************************************************
2 *
3 * Module Name: utmutex - local mutex support
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 ("utmutex")
49
50/* Local prototypes */
51
52static acpi_status
53acpi_ut_create_mutex (
54 acpi_mutex_handle mutex_id);
55
56static acpi_status
57acpi_ut_delete_mutex (
58 acpi_mutex_handle mutex_id);
59
60
61/*******************************************************************************
62 *
63 * FUNCTION: acpi_ut_mutex_initialize
64 *
65 * PARAMETERS: None.
66 *
67 * RETURN: Status
68 *
69 * DESCRIPTION: Create the system mutex objects.
70 *
71 ******************************************************************************/
72
73acpi_status
74acpi_ut_mutex_initialize (
75 void)
76{
77 u32 i;
78 acpi_status status;
79
80
81 ACPI_FUNCTION_TRACE ("ut_mutex_initialize");
82
83
84 /*
85 * Create each of the predefined mutex objects
86 */
87 for (i = 0; i < NUM_MUTEX; i++) {
88 status = acpi_ut_create_mutex (i);
89 if (ACPI_FAILURE (status)) {
90 return_ACPI_STATUS (status);
91 }
92 }
93
94 status = acpi_os_create_lock (&acpi_gbl_gpe_lock);
95 return_ACPI_STATUS (status);
96}
97
98
99/*******************************************************************************
100 *
101 * FUNCTION: acpi_ut_mutex_terminate
102 *
103 * PARAMETERS: None.
104 *
105 * RETURN: None.
106 *
107 * DESCRIPTION: Delete all of the system mutex objects.
108 *
109 ******************************************************************************/
110
111void
112acpi_ut_mutex_terminate (
113 void)
114{
115 u32 i;
116
117
118 ACPI_FUNCTION_TRACE ("ut_mutex_terminate");
119
120
121 /*
122 * Delete each predefined mutex object
123 */
124 for (i = 0; i < NUM_MUTEX; i++) {
125 (void) acpi_ut_delete_mutex (i);
126 }
127
128 acpi_os_delete_lock (acpi_gbl_gpe_lock);
129 return_VOID;
130}
131
132
133/*******************************************************************************
134 *
135 * FUNCTION: acpi_ut_create_mutex
136 *
137 * PARAMETERS: mutex_iD - ID of the mutex to be created
138 *
139 * RETURN: Status
140 *
141 * DESCRIPTION: Create a mutex object.
142 *
143 ******************************************************************************/
144
145static acpi_status
146acpi_ut_create_mutex (
147 acpi_mutex_handle mutex_id)
148{
149 acpi_status status = AE_OK;
150
151
152 ACPI_FUNCTION_TRACE_U32 ("ut_create_mutex", mutex_id);
153
154
155 if (mutex_id > MAX_MUTEX) {
156 return_ACPI_STATUS (AE_BAD_PARAMETER);
157 }
158
159 if (!acpi_gbl_mutex_info[mutex_id].mutex) {
160 status = acpi_os_create_semaphore (1, 1,
161 &acpi_gbl_mutex_info[mutex_id].mutex);
162 acpi_gbl_mutex_info[mutex_id].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
163 acpi_gbl_mutex_info[mutex_id].use_count = 0;
164 }
165
166 return_ACPI_STATUS (status);
167}
168
169
170/*******************************************************************************
171 *
172 * FUNCTION: acpi_ut_delete_mutex
173 *
174 * PARAMETERS: mutex_iD - ID of the mutex to be deleted
175 *
176 * RETURN: Status
177 *
178 * DESCRIPTION: Delete a mutex object.
179 *
180 ******************************************************************************/
181
182static acpi_status
183acpi_ut_delete_mutex (
184 acpi_mutex_handle mutex_id)
185{
186 acpi_status status;
187
188
189 ACPI_FUNCTION_TRACE_U32 ("ut_delete_mutex", mutex_id);
190
191
192 if (mutex_id > MAX_MUTEX) {
193 return_ACPI_STATUS (AE_BAD_PARAMETER);
194 }
195
196 status = acpi_os_delete_semaphore (acpi_gbl_mutex_info[mutex_id].mutex);
197
198 acpi_gbl_mutex_info[mutex_id].mutex = NULL;
199 acpi_gbl_mutex_info[mutex_id].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
200
201 return_ACPI_STATUS (status);
202}
203
204
205/*******************************************************************************
206 *
207 * FUNCTION: acpi_ut_acquire_mutex
208 *
209 * PARAMETERS: mutex_iD - ID of the mutex to be acquired
210 *
211 * RETURN: Status
212 *
213 * DESCRIPTION: Acquire a mutex object.
214 *
215 ******************************************************************************/
216
217acpi_status
218acpi_ut_acquire_mutex (
219 acpi_mutex_handle mutex_id)
220{
221 acpi_status status;
222 u32 this_thread_id;
223
224
225 ACPI_FUNCTION_NAME ("ut_acquire_mutex");
226
227
228 if (mutex_id > MAX_MUTEX) {
229 return (AE_BAD_PARAMETER);
230 }
231
232 this_thread_id = acpi_os_get_thread_id ();
233
234#ifdef ACPI_MUTEX_DEBUG
235 {
236 u32 i;
237 /*
238 * Mutex debug code, for internal debugging only.
239 *
240 * Deadlock prevention. Check if this thread owns any mutexes of value
241 * greater than or equal to this one. If so, the thread has violated
242 * the mutex ordering rule. This indicates a coding error somewhere in
243 * the ACPI subsystem code.
244 */
245 for (i = mutex_id; i < MAX_MUTEX; i++) {
246 if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) {
247 if (i == mutex_id) {
248 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
249 "Mutex [%s] already acquired by this thread [%X]\n",
250 acpi_ut_get_mutex_name (mutex_id), this_thread_id));
251
252 return (AE_ALREADY_ACQUIRED);
253 }
254
255 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
256 "Invalid acquire order: Thread %X owns [%s], wants [%s]\n",
257 this_thread_id, acpi_ut_get_mutex_name (i),
258 acpi_ut_get_mutex_name (mutex_id)));
259
260 return (AE_ACQUIRE_DEADLOCK);
261 }
262 }
263 }
264#endif
265
266 ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX,
267 "Thread %X attempting to acquire Mutex [%s]\n",
268 this_thread_id, acpi_ut_get_mutex_name (mutex_id)));
269
270 status = acpi_os_wait_semaphore (acpi_gbl_mutex_info[mutex_id].mutex,
271 1, ACPI_WAIT_FOREVER);
272 if (ACPI_SUCCESS (status)) {
273 ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X acquired Mutex [%s]\n",
274 this_thread_id, acpi_ut_get_mutex_name (mutex_id)));
275
276 acpi_gbl_mutex_info[mutex_id].use_count++;
277 acpi_gbl_mutex_info[mutex_id].owner_id = this_thread_id;
278 }
279 else {
280 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
281 "Thread %X could not acquire Mutex [%s] %s\n",
282 this_thread_id, acpi_ut_get_mutex_name (mutex_id),
283 acpi_format_exception (status)));
284 }
285
286 return (status);
287}
288
289
290/*******************************************************************************
291 *
292 * FUNCTION: acpi_ut_release_mutex
293 *
294 * PARAMETERS: mutex_iD - ID of the mutex to be released
295 *
296 * RETURN: Status
297 *
298 * DESCRIPTION: Release a mutex object.
299 *
300 ******************************************************************************/
301
302acpi_status
303acpi_ut_release_mutex (
304 acpi_mutex_handle mutex_id)
305{
306 acpi_status status;
307 u32 this_thread_id;
308
309
310 ACPI_FUNCTION_NAME ("ut_release_mutex");
311
312
313 this_thread_id = acpi_os_get_thread_id ();
314 ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX,
315 "Thread %X releasing Mutex [%s]\n", this_thread_id,
316 acpi_ut_get_mutex_name (mutex_id)));
317
318 if (mutex_id > MAX_MUTEX) {
319 return (AE_BAD_PARAMETER);
320 }
321
322 /*
323 * Mutex must be acquired in order to release it!
324 */
325 if (acpi_gbl_mutex_info[mutex_id].owner_id == ACPI_MUTEX_NOT_ACQUIRED) {
326 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
327 "Mutex [%s] is not acquired, cannot release\n",
328 acpi_ut_get_mutex_name (mutex_id)));
329
330 return (AE_NOT_ACQUIRED);
331 }
332
333#ifdef ACPI_MUTEX_DEBUG
334 {
335 u32 i;
336 /*
337 * Mutex debug code, for internal debugging only.
338 *
339 * Deadlock prevention. Check if this thread owns any mutexes of value
340 * greater than this one. If so, the thread has violated the mutex
341 * ordering rule. This indicates a coding error somewhere in
342 * the ACPI subsystem code.
343 */
344 for (i = mutex_id; i < MAX_MUTEX; i++) {
345 if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) {
346 if (i == mutex_id) {
347 continue;
348 }
349
350 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
351 "Invalid release order: owns [%s], releasing [%s]\n",
352 acpi_ut_get_mutex_name (i), acpi_ut_get_mutex_name (mutex_id)));
353
354 return (AE_RELEASE_DEADLOCK);
355 }
356 }
357 }
358#endif
359
360 /* Mark unlocked FIRST */
361
362 acpi_gbl_mutex_info[mutex_id].owner_id = ACPI_MUTEX_NOT_ACQUIRED;
363
364 status = acpi_os_signal_semaphore (acpi_gbl_mutex_info[mutex_id].mutex, 1);
365
366 if (ACPI_FAILURE (status)) {
367 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
368 "Thread %X could not release Mutex [%s] %s\n",
369 this_thread_id, acpi_ut_get_mutex_name (mutex_id),
370 acpi_format_exception (status)));
371 }
372 else {
373 ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Thread %X released Mutex [%s]\n",
374 this_thread_id, acpi_ut_get_mutex_name (mutex_id)));
375 }
376
377 return (status);
378}
379
380
diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c
index cd3899b9cc5a..19178e142951 100644
--- a/drivers/acpi/utilities/utobject.c
+++ b/drivers/acpi/utilities/utobject.c
@@ -338,7 +338,7 @@ acpi_ut_allocate_object_desc_dbg (
338 ACPI_FUNCTION_TRACE ("ut_allocate_object_desc_dbg"); 338 ACPI_FUNCTION_TRACE ("ut_allocate_object_desc_dbg");
339 339
340 340
341 object = acpi_ut_acquire_from_cache (ACPI_MEM_LIST_OPERAND); 341 object = acpi_os_acquire_object (acpi_gbl_operand_cache);
342 if (!object) { 342 if (!object) {
343 _ACPI_REPORT_ERROR (module_name, line_number, component_id, 343 _ACPI_REPORT_ERROR (module_name, line_number, component_id,
344 ("Could not allocate an object descriptor\n")); 344 ("Could not allocate an object descriptor\n"));
@@ -347,7 +347,7 @@ acpi_ut_allocate_object_desc_dbg (
347 } 347 }
348 348
349 /* Mark the descriptor type */ 349 /* Mark the descriptor type */
350 350 memset(object, 0, sizeof(union acpi_operand_object));
351 ACPI_SET_DESCRIPTOR_TYPE (object, ACPI_DESC_TYPE_OPERAND); 351 ACPI_SET_DESCRIPTOR_TYPE (object, ACPI_DESC_TYPE_OPERAND);
352 352
353 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p Size %X\n", 353 ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "%p Size %X\n",
@@ -385,37 +385,9 @@ acpi_ut_delete_object_desc (
385 return_VOID; 385 return_VOID;
386 } 386 }
387 387
388 acpi_ut_release_to_cache (ACPI_MEM_LIST_OPERAND, object); 388 (void) acpi_os_release_object (acpi_gbl_operand_cache, object);
389
390 return_VOID;
391}
392
393
394#ifdef ACPI_ENABLE_OBJECT_CACHE
395/*******************************************************************************
396 *
397 * FUNCTION: acpi_ut_delete_object_cache
398 *
399 * PARAMETERS: None
400 *
401 * RETURN: None
402 *
403 * DESCRIPTION: Purge the global state object cache. Used during subsystem
404 * termination.
405 *
406 ******************************************************************************/
407
408void
409acpi_ut_delete_object_cache (
410 void)
411{
412 ACPI_FUNCTION_TRACE ("ut_delete_object_cache");
413
414
415 acpi_ut_delete_generic_cache (ACPI_MEM_LIST_OPERAND);
416 return_VOID; 389 return_VOID;
417} 390}
418#endif
419 391
420 392
421/******************************************************************************* 393/*******************************************************************************
diff --git a/drivers/acpi/utilities/utstate.c b/drivers/acpi/utilities/utstate.c
new file mode 100644
index 000000000000..192e7ac95690
--- /dev/null
+++ b/drivers/acpi/utilities/utstate.c
@@ -0,0 +1,376 @@
1/*******************************************************************************
2 *
3 * Module Name: utstate - state object support procedures
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 ("utstate")
49
50
51/*******************************************************************************
52 *
53 * FUNCTION: acpi_ut_create_pkg_state_and_push
54 *
55 * PARAMETERS: Object - Object to be added to the new state
56 * Action - Increment/Decrement
57 * state_list - List the state will be added to
58 *
59 * RETURN: Status
60 *
61 * DESCRIPTION: Create a new state and push it
62 *
63 ******************************************************************************/
64
65acpi_status
66acpi_ut_create_pkg_state_and_push (
67 void *internal_object,
68 void *external_object,
69 u16 index,
70 union acpi_generic_state **state_list)
71{
72 union acpi_generic_state *state;
73
74
75 ACPI_FUNCTION_ENTRY ();
76
77
78 state = acpi_ut_create_pkg_state (internal_object, external_object, index);
79 if (!state) {
80 return (AE_NO_MEMORY);
81 }
82
83 acpi_ut_push_generic_state (state_list, state);
84 return (AE_OK);
85}
86
87
88/*******************************************************************************
89 *
90 * FUNCTION: acpi_ut_push_generic_state
91 *
92 * PARAMETERS: list_head - Head of the state stack
93 * State - State object to push
94 *
95 * RETURN: None
96 *
97 * DESCRIPTION: Push a state object onto a state stack
98 *
99 ******************************************************************************/
100
101void
102acpi_ut_push_generic_state (
103 union acpi_generic_state **list_head,
104 union acpi_generic_state *state)
105{
106 ACPI_FUNCTION_TRACE ("ut_push_generic_state");
107
108
109 /* Push the state object onto the front of the list (stack) */
110
111 state->common.next = *list_head;
112 *list_head = state;
113
114 return_VOID;
115}
116
117
118/*******************************************************************************
119 *
120 * FUNCTION: acpi_ut_pop_generic_state
121 *
122 * PARAMETERS: list_head - Head of the state stack
123 *
124 * RETURN: The popped state object
125 *
126 * DESCRIPTION: Pop a state object from a state stack
127 *
128 ******************************************************************************/
129
130union acpi_generic_state *
131acpi_ut_pop_generic_state (
132 union acpi_generic_state **list_head)
133{
134 union acpi_generic_state *state;
135
136
137 ACPI_FUNCTION_TRACE ("ut_pop_generic_state");
138
139
140 /* Remove the state object at the head of the list (stack) */
141
142 state = *list_head;
143 if (state) {
144 /* Update the list head */
145
146 *list_head = state->common.next;
147 }
148
149 return_PTR (state);
150}
151
152
153/*******************************************************************************
154 *
155 * FUNCTION: acpi_ut_create_generic_state
156 *
157 * PARAMETERS: None
158 *
159 * RETURN: The new state object. NULL on failure.
160 *
161 * DESCRIPTION: Create a generic state object. Attempt to obtain one from
162 * the global state cache; If none available, create a new one.
163 *
164 ******************************************************************************/
165
166union acpi_generic_state *
167acpi_ut_create_generic_state (
168 void)
169{
170 union acpi_generic_state *state;
171
172
173 ACPI_FUNCTION_ENTRY ();
174
175
176 state = acpi_os_acquire_object (acpi_gbl_state_cache);
177 if (state) {
178 /* Initialize */
179 memset(state, 0, sizeof(union acpi_generic_state));
180 state->common.data_type = ACPI_DESC_TYPE_STATE;
181 }
182
183 return (state);
184}
185
186
187/*******************************************************************************
188 *
189 * FUNCTION: acpi_ut_create_thread_state
190 *
191 * PARAMETERS: None
192 *
193 * RETURN: New Thread State. NULL on failure
194 *
195 * DESCRIPTION: Create a "Thread State" - a flavor of the generic state used
196 * to track per-thread info during method execution
197 *
198 ******************************************************************************/
199
200struct acpi_thread_state *
201acpi_ut_create_thread_state (
202 void)
203{
204 union acpi_generic_state *state;
205
206
207 ACPI_FUNCTION_TRACE ("ut_create_thread_state");
208
209
210 /* Create the generic state object */
211
212 state = acpi_ut_create_generic_state ();
213 if (!state) {
214 return_PTR (NULL);
215 }
216
217 /* Init fields specific to the update struct */
218
219 state->common.data_type = ACPI_DESC_TYPE_STATE_THREAD;
220 state->thread.thread_id = acpi_os_get_thread_id ();
221
222 return_PTR ((struct acpi_thread_state *) state);
223}
224
225
226/*******************************************************************************
227 *
228 * FUNCTION: acpi_ut_create_update_state
229 *
230 * PARAMETERS: Object - Initial Object to be installed in the state
231 * Action - Update action to be performed
232 *
233 * RETURN: New state object, null on failure
234 *
235 * DESCRIPTION: Create an "Update State" - a flavor of the generic state used
236 * to update reference counts and delete complex objects such
237 * as packages.
238 *
239 ******************************************************************************/
240
241union acpi_generic_state *
242acpi_ut_create_update_state (
243 union acpi_operand_object *object,
244 u16 action)
245{
246 union acpi_generic_state *state;
247
248
249 ACPI_FUNCTION_TRACE_PTR ("ut_create_update_state", object);
250
251
252 /* Create the generic state object */
253
254 state = acpi_ut_create_generic_state ();
255 if (!state) {
256 return_PTR (NULL);
257 }
258
259 /* Init fields specific to the update struct */
260
261 state->common.data_type = ACPI_DESC_TYPE_STATE_UPDATE;
262 state->update.object = object;
263 state->update.value = action;
264
265 return_PTR (state);
266}
267
268
269/*******************************************************************************
270 *
271 * FUNCTION: acpi_ut_create_pkg_state
272 *
273 * PARAMETERS: Object - Initial Object to be installed in the state
274 * Action - Update action to be performed
275 *
276 * RETURN: New state object, null on failure
277 *
278 * DESCRIPTION: Create a "Package State"
279 *
280 ******************************************************************************/
281
282union acpi_generic_state *
283acpi_ut_create_pkg_state (
284 void *internal_object,
285 void *external_object,
286 u16 index)
287{
288 union acpi_generic_state *state;
289
290
291 ACPI_FUNCTION_TRACE_PTR ("ut_create_pkg_state", internal_object);
292
293
294 /* Create the generic state object */
295
296 state = acpi_ut_create_generic_state ();
297 if (!state) {
298 return_PTR (NULL);
299 }
300
301 /* Init fields specific to the update struct */
302
303 state->common.data_type = ACPI_DESC_TYPE_STATE_PACKAGE;
304 state->pkg.source_object = (union acpi_operand_object *) internal_object;
305 state->pkg.dest_object = external_object;
306 state->pkg.index = index;
307 state->pkg.num_packages = 1;
308
309 return_PTR (state);
310}
311
312
313/*******************************************************************************
314 *
315 * FUNCTION: acpi_ut_create_control_state
316 *
317 * PARAMETERS: None
318 *
319 * RETURN: New state object, null on failure
320 *
321 * DESCRIPTION: Create a "Control State" - a flavor of the generic state used
322 * to support nested IF/WHILE constructs in the AML.
323 *
324 ******************************************************************************/
325
326union acpi_generic_state *
327acpi_ut_create_control_state (
328 void)
329{
330 union acpi_generic_state *state;
331
332
333 ACPI_FUNCTION_TRACE ("ut_create_control_state");
334
335
336 /* Create the generic state object */
337
338 state = acpi_ut_create_generic_state ();
339 if (!state) {
340 return_PTR (NULL);
341 }
342
343 /* Init fields specific to the control struct */
344
345 state->common.data_type = ACPI_DESC_TYPE_STATE_CONTROL;
346 state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING;
347
348 return_PTR (state);
349}
350
351
352/*******************************************************************************
353 *
354 * FUNCTION: acpi_ut_delete_generic_state
355 *
356 * PARAMETERS: State - The state object to be deleted
357 *
358 * RETURN: None
359 *
360 * DESCRIPTION: Put a state object back into the global state cache. The object
361 * is not actually freed at this time.
362 *
363 ******************************************************************************/
364
365void
366acpi_ut_delete_generic_state (
367 union acpi_generic_state *state)
368{
369 ACPI_FUNCTION_TRACE ("ut_delete_generic_state");
370
371
372 (void) acpi_os_release_object (acpi_gbl_state_cache, state);
373 return_VOID;
374}
375
376
diff --git a/drivers/acpi/utilities/utxface.c b/drivers/acpi/utilities/utxface.c
index e8803d810656..850da6817423 100644
--- a/drivers/acpi/utilities/utxface.c
+++ b/drivers/acpi/utilities/utxface.c
@@ -46,8 +46,6 @@
46#include <acpi/acpi.h> 46#include <acpi/acpi.h>
47#include <acpi/acevents.h> 47#include <acpi/acevents.h>
48#include <acpi/acnamesp.h> 48#include <acpi/acnamesp.h>
49#include <acpi/acparser.h>
50#include <acpi/acdispat.h>
51#include <acpi/acdebug.h> 49#include <acpi/acdebug.h>
52 50
53#define _COMPONENT ACPI_UTILITIES 51#define _COMPONENT ACPI_UTILITIES
@@ -79,11 +77,6 @@ acpi_initialize_subsystem (
79 77
80 ACPI_DEBUG_EXEC (acpi_ut_init_stack_ptr_trace ()); 78 ACPI_DEBUG_EXEC (acpi_ut_init_stack_ptr_trace ());
81 79
82
83 /* Initialize all globals used by the subsystem */
84
85 acpi_ut_init_globals ();
86
87 /* Initialize the OS-Dependent layer */ 80 /* Initialize the OS-Dependent layer */
88 81
89 status = acpi_os_initialize (); 82 status = acpi_os_initialize ();
@@ -93,6 +86,10 @@ acpi_initialize_subsystem (
93 return_ACPI_STATUS (status); 86 return_ACPI_STATUS (status);
94 } 87 }
95 88
89 /* Initialize all globals used by the subsystem */
90
91 acpi_ut_init_globals ();
92
96 /* Create the default mutex objects */ 93 /* Create the default mutex objects */
97 94
98 status = acpi_ut_mutex_initialize (); 95 status = acpi_ut_mutex_initialize ();
@@ -522,13 +519,9 @@ acpi_purge_cached_objects (
522{ 519{
523 ACPI_FUNCTION_TRACE ("acpi_purge_cached_objects"); 520 ACPI_FUNCTION_TRACE ("acpi_purge_cached_objects");
524 521
525 522 (void) acpi_os_purge_cache (acpi_gbl_state_cache);
526#ifdef ACPI_ENABLE_OBJECT_CACHE 523 (void) acpi_os_purge_cache (acpi_gbl_operand_cache);
527 acpi_ut_delete_generic_state_cache (); 524 (void) acpi_os_purge_cache (acpi_gbl_ps_node_cache);
528 acpi_ut_delete_object_cache (); 525 (void) acpi_os_purge_cache (acpi_gbl_ps_node_ext_cache);
529 acpi_ds_delete_walk_state_cache ();
530 acpi_ps_delete_parse_cache ();
531#endif
532
533 return_ACPI_STATUS (AE_OK); 526 return_ACPI_STATUS (AE_OK);
534} 527}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-15 07:14:14 -0500