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-rw-r--r--drivers/acpi/dispatcher/dsinit.c30
-rw-r--r--drivers/acpi/dispatcher/dsmethod.c330
-rw-r--r--drivers/acpi/dispatcher/dswexec.c4
-rw-r--r--drivers/acpi/dispatcher/dswload.c49
-rw-r--r--drivers/acpi/events/evgpe.c14
-rw-r--r--drivers/acpi/executer/exconfig.c8
-rw-r--r--drivers/acpi/executer/excreate.c27
-rw-r--r--drivers/acpi/executer/exdump.c8
-rw-r--r--drivers/acpi/executer/exfldio.c71
-rw-r--r--drivers/acpi/executer/exmutex.c12
-rw-r--r--drivers/acpi/executer/exsystem.c82
-rw-r--r--drivers/acpi/hardware/hwregs.c77
-rw-r--r--drivers/acpi/namespace/nsaccess.c27
-rw-r--r--drivers/acpi/osl.c28
-rw-r--r--drivers/acpi/parser/psparse.c18
-rw-r--r--drivers/acpi/utilities/utdelete.c36
-rw-r--r--drivers/acpi/utilities/utglobal.c1
-rw-r--r--drivers/acpi/utilities/utmutex.c39
18 files changed, 450 insertions, 411 deletions
diff --git a/drivers/acpi/dispatcher/dsinit.c b/drivers/acpi/dispatcher/dsinit.c
index bbdf990e9f65..daf51b5b5875 100644
--- a/drivers/acpi/dispatcher/dsinit.c
+++ b/drivers/acpi/dispatcher/dsinit.c
@@ -125,37 +125,7 @@ acpi_ds_init_one_object(acpi_handle obj_handle,
125 if (info->table_desc->pointer->revision == 1) { 125 if (info->table_desc->pointer->revision == 1) {
126 node->flags |= ANOBJ_DATA_WIDTH_32; 126 node->flags |= ANOBJ_DATA_WIDTH_32;
127 } 127 }
128#ifdef ACPI_INIT_PARSE_METHODS
129 /*
130 * Note 11/2005: Removed this code to parse all methods during table
131 * load because it causes problems if there are any errors during the
132 * parse. Also, it seems like overkill and we probably don't want to
133 * abort a table load because of an issue with a single method.
134 */
135
136 /*
137 * Print a dot for each method unless we are going to print
138 * the entire pathname
139 */
140 if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
141 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "."));
142 }
143 128
144 /*
145 * Always parse methods to detect errors, we will delete
146 * the parse tree below
147 */
148 status = acpi_ds_parse_method(obj_handle);
149 if (ACPI_FAILURE(status)) {
150 ACPI_ERROR((AE_INFO,
151 "Method %p [%4.4s] - parse failure, %s",
152 obj_handle,
153 acpi_ut_get_node_name(obj_handle),
154 acpi_format_exception(status)));
155
156 /* This parse failed, but we will continue parsing more methods */
157 }
158#endif
159 info->method_count++; 129 info->method_count++;
160 break; 130 break;
161 131
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index bc9aca4e7401..a39a33f4847a 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -52,6 +52,10 @@
52#define _COMPONENT ACPI_DISPATCHER 52#define _COMPONENT ACPI_DISPATCHER
53ACPI_MODULE_NAME("dsmethod") 53ACPI_MODULE_NAME("dsmethod")
54 54
55/* Local prototypes */
56static acpi_status
57acpi_ds_create_method_mutex(union acpi_operand_object *method_desc);
58
55/******************************************************************************* 59/*******************************************************************************
56 * 60 *
57 * FUNCTION: acpi_ds_method_error 61 * FUNCTION: acpi_ds_method_error
@@ -67,6 +71,7 @@ ACPI_MODULE_NAME("dsmethod")
67 * Note: Allows the exception handler to change the status code 71 * Note: Allows the exception handler to change the status code
68 * 72 *
69 ******************************************************************************/ 73 ******************************************************************************/
74
70acpi_status 75acpi_status
71acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state) 76acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state)
72{ 77{
@@ -113,11 +118,51 @@ acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state)
113 118
114/******************************************************************************* 119/*******************************************************************************
115 * 120 *
121 * FUNCTION: acpi_ds_create_method_mutex
122 *
123 * PARAMETERS: obj_desc - The method object
124 *
125 * RETURN: Status
126 *
127 * DESCRIPTION: Create a mutex object for a serialized control method
128 *
129 ******************************************************************************/
130
131static acpi_status
132acpi_ds_create_method_mutex(union acpi_operand_object *method_desc)
133{
134 union acpi_operand_object *mutex_desc;
135 acpi_status status;
136
137 ACPI_FUNCTION_NAME(ds_create_method_mutex);
138
139 /* Create the new mutex object */
140
141 mutex_desc = acpi_ut_create_internal_object(ACPI_TYPE_MUTEX);
142 if (!mutex_desc) {
143 return_ACPI_STATUS(AE_NO_MEMORY);
144 }
145
146 /* Create the actual OS Mutex */
147
148 status = acpi_os_create_mutex(&mutex_desc->mutex.os_mutex);
149 if (ACPI_FAILURE(status)) {
150 return_ACPI_STATUS(status);
151 }
152
153 mutex_desc->mutex.sync_level = method_desc->method.sync_level;
154 method_desc->method.mutex = mutex_desc;
155 return_ACPI_STATUS(AE_OK);
156}
157
158/*******************************************************************************
159 *
116 * FUNCTION: acpi_ds_begin_method_execution 160 * FUNCTION: acpi_ds_begin_method_execution
117 * 161 *
118 * PARAMETERS: method_node - Node of the method 162 * PARAMETERS: method_node - Node of the method
119 * obj_desc - The method object 163 * obj_desc - The method object
120 * calling_method_node - Caller of this method (if non-null) 164 * walk_state - current state, NULL if not yet executing
165 * a method.
121 * 166 *
122 * RETURN: Status 167 * RETURN: Status
123 * 168 *
@@ -128,9 +173,9 @@ acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state)
128 ******************************************************************************/ 173 ******************************************************************************/
129 174
130acpi_status 175acpi_status
131acpi_ds_begin_method_execution(struct acpi_namespace_node * method_node, 176acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
132 union acpi_operand_object * obj_desc, 177 union acpi_operand_object *obj_desc,
133 struct acpi_namespace_node * calling_method_node) 178 struct acpi_walk_state *walk_state)
134{ 179{
135 acpi_status status = AE_OK; 180 acpi_status status = AE_OK;
136 181
@@ -149,35 +194,80 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node * method_node,
149 } 194 }
150 195
151 /* 196 /*
152 * If there is a concurrency limit on this method, we need to 197 * If this method is serialized, we need to acquire the method mutex.
153 * obtain a unit from the method semaphore.
154 */ 198 */
155 if (obj_desc->method.semaphore) { 199 if (obj_desc->method.method_flags & AML_METHOD_SERIALIZED) {
156 /* 200 /*
157 * Allow recursive method calls, up to the reentrancy/concurrency 201 * Create a mutex for the method if it is defined to be Serialized
158 * limit imposed by the SERIALIZED rule and the sync_level method 202 * and a mutex has not already been created. We defer the mutex creation
159 * parameter. 203 * until a method is actually executed, to minimize the object count
160 *
161 * The point of this code is to avoid permanently blocking a
162 * thread that is making recursive method calls.
163 */ 204 */
164 if (method_node == calling_method_node) { 205 if (!obj_desc->method.mutex) {
165 if (obj_desc->method.thread_count >= 206 status = acpi_ds_create_method_mutex(obj_desc);
166 obj_desc->method.concurrency) { 207 if (ACPI_FAILURE(status)) {
167 return_ACPI_STATUS(AE_AML_METHOD_LIMIT); 208 return_ACPI_STATUS(status);
168 } 209 }
169 } 210 }
170 211
171 /* 212 /*
172 * Get a unit from the method semaphore. This releases the 213 * The current_sync_level (per-thread) must be less than or equal to
173 * interpreter if we block (then reacquires it) 214 * the sync level of the method. This mechanism provides some
215 * deadlock prevention
216 *
217 * Top-level method invocation has no walk state at this point
174 */ 218 */
175 status = 219 if (walk_state &&
176 acpi_ex_system_wait_semaphore(obj_desc->method.semaphore, 220 (walk_state->thread->current_sync_level >
177 ACPI_WAIT_FOREVER); 221 obj_desc->method.mutex->mutex.sync_level)) {
178 if (ACPI_FAILURE(status)) { 222 ACPI_ERROR((AE_INFO,
179 return_ACPI_STATUS(status); 223 "Cannot acquire Mutex for method [%4.4s], current SyncLevel is too large (%d)",
224 acpi_ut_get_node_name(method_node),
225 walk_state->thread->current_sync_level));
226
227 return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
180 } 228 }
229
230 /*
231 * Obtain the method mutex if necessary. Do not acquire mutex for a
232 * recursive call.
233 */
234 if (!walk_state ||
235 !obj_desc->method.mutex->mutex.owner_thread ||
236 (walk_state->thread !=
237 obj_desc->method.mutex->mutex.owner_thread)) {
238 /*
239 * Acquire the method mutex. This releases the interpreter if we
240 * block (and reacquires it before it returns)
241 */
242 status =
243 acpi_ex_system_wait_mutex(obj_desc->method.mutex->
244 mutex.os_mutex,
245 ACPI_WAIT_FOREVER);
246 if (ACPI_FAILURE(status)) {
247 return_ACPI_STATUS(status);
248 }
249
250 /* Update the mutex and walk info and save the original sync_level */
251
252 if (walk_state) {
253 obj_desc->method.mutex->mutex.
254 original_sync_level =
255 walk_state->thread->current_sync_level;
256
257 obj_desc->method.mutex->mutex.owner_thread =
258 walk_state->thread;
259 walk_state->thread->current_sync_level =
260 obj_desc->method.sync_level;
261 } else {
262 obj_desc->method.mutex->mutex.
263 original_sync_level =
264 obj_desc->method.mutex->mutex.sync_level;
265 }
266 }
267
268 /* Always increase acquisition depth */
269
270 obj_desc->method.mutex->mutex.acquisition_depth++;
181 } 271 }
182 272
183 /* 273 /*
@@ -200,10 +290,10 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node * method_node,
200 return_ACPI_STATUS(status); 290 return_ACPI_STATUS(status);
201 291
202 cleanup: 292 cleanup:
203 /* On error, must signal the method semaphore if present */ 293 /* On error, must release the method mutex (if present) */
204 294
205 if (obj_desc->method.semaphore) { 295 if (obj_desc->method.mutex) {
206 (void)acpi_os_signal_semaphore(obj_desc->method.semaphore, 1); 296 acpi_os_release_mutex(obj_desc->method.mutex->mutex.os_mutex);
207 } 297 }
208 return_ACPI_STATUS(status); 298 return_ACPI_STATUS(status);
209} 299}
@@ -253,10 +343,10 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
253 return_ACPI_STATUS(AE_NULL_OBJECT); 343 return_ACPI_STATUS(AE_NULL_OBJECT);
254 } 344 }
255 345
256 /* Init for new method, possibly wait on concurrency semaphore */ 346 /* Init for new method, possibly wait on method mutex */
257 347
258 status = acpi_ds_begin_method_execution(method_node, obj_desc, 348 status = acpi_ds_begin_method_execution(method_node, obj_desc,
259 this_walk_state->method_node); 349 this_walk_state);
260 if (ACPI_FAILURE(status)) { 350 if (ACPI_FAILURE(status)) {
261 return_ACPI_STATUS(status); 351 return_ACPI_STATUS(status);
262 } 352 }
@@ -478,6 +568,8 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state,
478 * created, delete all locals and arguments, and delete the parse 568 * created, delete all locals and arguments, and delete the parse
479 * tree if requested. 569 * tree if requested.
480 * 570 *
571 * MUTEX: Interpreter is locked
572 *
481 ******************************************************************************/ 573 ******************************************************************************/
482 574
483void 575void
@@ -503,26 +595,21 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
503 } 595 }
504 596
505 /* 597 /*
506 * Lock the parser while we terminate this method. 598 * If method is serialized, release the mutex and restore the
507 * If this is the last thread executing the method, 599 * current sync level for this thread
508 * we have additional cleanup to perform
509 */ 600 */
510 status = acpi_ut_acquire_mutex(ACPI_MTX_CONTROL_METHOD); 601 if (method_desc->method.mutex) {
511 if (ACPI_FAILURE(status)) {
512 return_VOID;
513 }
514 602
515 /* Signal completion of the execution of this method if necessary */ 603 /* Acquisition Depth handles recursive calls */
516 604
517 if (method_desc->method.semaphore) { 605 method_desc->method.mutex->mutex.acquisition_depth--;
518 status = 606 if (!method_desc->method.mutex->mutex.acquisition_depth) {
519 acpi_os_signal_semaphore(method_desc->method.semaphore, 1); 607 walk_state->thread->current_sync_level =
520 if (ACPI_FAILURE(status)) { 608 method_desc->method.mutex->mutex.
521 609 original_sync_level;
522 /* Ignore error and continue */
523 610
524 ACPI_EXCEPTION((AE_INFO, status, 611 acpi_os_release_mutex(method_desc->method.mutex->mutex.
525 "Could not signal method semaphore")); 612 os_mutex);
526 } 613 }
527 } 614 }
528 615
@@ -537,7 +624,7 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
537 624
538 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); 625 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
539 if (ACPI_FAILURE(status)) { 626 if (ACPI_FAILURE(status)) {
540 goto exit; 627 return_VOID;
541 } 628 }
542 629
543 /* 630 /*
@@ -580,18 +667,16 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
580 /* 667 /*
581 * Support to dynamically change a method from not_serialized to 668 * Support to dynamically change a method from not_serialized to
582 * Serialized if it appears that the method is incorrectly written and 669 * Serialized if it appears that the method is incorrectly written and
583 * does not support multiple thread execution. The best example of this 670 * does not support multiple thread execution. The best example of this
584 * is if such a method creates namespace objects and blocks. A second 671 * is if such a method creates namespace objects and blocks. A second
585 * thread will fail with an AE_ALREADY_EXISTS exception 672 * thread will fail with an AE_ALREADY_EXISTS exception
586 * 673 *
587 * This code is here because we must wait until the last thread exits 674 * This code is here because we must wait until the last thread exits
588 * before creating the synchronization semaphore. 675 * before creating the synchronization semaphore.
589 */ 676 */
590 if ((method_desc->method.concurrency == 1) && 677 if ((method_desc->method.method_flags & AML_METHOD_SERIALIZED)
591 (!method_desc->method.semaphore)) { 678 && (!method_desc->method.mutex)) {
592 status = acpi_os_create_semaphore(1, 1, 679 status = acpi_ds_create_method_mutex(method_desc);
593 &method_desc->method.
594 semaphore);
595 } 680 }
596 681
597 /* No more threads, we can free the owner_id */ 682 /* No more threads, we can free the owner_id */
@@ -599,144 +684,5 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
599 acpi_ut_release_owner_id(&method_desc->method.owner_id); 684 acpi_ut_release_owner_id(&method_desc->method.owner_id);
600 } 685 }
601 686
602 exit:
603 (void)acpi_ut_release_mutex(ACPI_MTX_CONTROL_METHOD);
604 return_VOID; 687 return_VOID;
605} 688}
606
607#ifdef ACPI_INIT_PARSE_METHODS
608 /*
609 * Note 11/2005: Removed this code to parse all methods during table
610 * load because it causes problems if there are any errors during the
611 * parse. Also, it seems like overkill and we probably don't want to
612 * abort a table load because of an issue with a single method.
613 */
614
615/*******************************************************************************
616 *
617 * FUNCTION: acpi_ds_parse_method
618 *
619 * PARAMETERS: Node - Method node
620 *
621 * RETURN: Status
622 *
623 * DESCRIPTION: Parse the AML that is associated with the method.
624 *
625 * MUTEX: Assumes parser is locked
626 *
627 ******************************************************************************/
628
629acpi_status acpi_ds_parse_method(struct acpi_namespace_node *node)
630{
631 acpi_status status;
632 union acpi_operand_object *obj_desc;
633 union acpi_parse_object *op;
634 struct acpi_walk_state *walk_state;
635
636 ACPI_FUNCTION_TRACE_PTR(ds_parse_method, node);
637
638 /* Parameter Validation */
639
640 if (!node) {
641 return_ACPI_STATUS(AE_NULL_ENTRY);
642 }
643
644 ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
645 "**** Parsing [%4.4s] **** NamedObj=%p\n",
646 acpi_ut_get_node_name(node), node));
647
648 /* Extract the method object from the method Node */
649
650 obj_desc = acpi_ns_get_attached_object(node);
651 if (!obj_desc) {
652 return_ACPI_STATUS(AE_NULL_OBJECT);
653 }
654
655 /* Create a mutex for the method if there is a concurrency limit */
656
657 if ((obj_desc->method.concurrency != ACPI_INFINITE_CONCURRENCY) &&
658 (!obj_desc->method.semaphore)) {
659 status = acpi_os_create_semaphore(obj_desc->method.concurrency,
660 obj_desc->method.concurrency,
661 &obj_desc->method.semaphore);
662 if (ACPI_FAILURE(status)) {
663 return_ACPI_STATUS(status);
664 }
665 }
666
667 /*
668 * Allocate a new parser op to be the root of the parsed
669 * method tree
670 */
671 op = acpi_ps_alloc_op(AML_METHOD_OP);
672 if (!op) {
673 return_ACPI_STATUS(AE_NO_MEMORY);
674 }
675
676 /* Init new op with the method name and pointer back to the Node */
677
678 acpi_ps_set_name(op, node->name.integer);
679 op->common.node = node;
680
681 /*
682 * Get a new owner_id for objects created by this method. Namespace
683 * objects (such as Operation Regions) can be created during the
684 * first pass parse.
685 */
686 status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);
687 if (ACPI_FAILURE(status)) {
688 goto cleanup;
689 }
690
691 /* Create and initialize a new walk state */
692
693 walk_state =
694 acpi_ds_create_walk_state(obj_desc->method.owner_id, NULL, NULL,
695 NULL);
696 if (!walk_state) {
697 status = AE_NO_MEMORY;
698 goto cleanup2;
699 }
700
701 status = acpi_ds_init_aml_walk(walk_state, op, node,
702 obj_desc->method.aml_start,
703 obj_desc->method.aml_length, NULL, 1);
704 if (ACPI_FAILURE(status)) {
705 acpi_ds_delete_walk_state(walk_state);
706 goto cleanup2;
707 }
708
709 /*
710 * Parse the method, first pass
711 *
712 * The first pass load is where newly declared named objects are added into
713 * the namespace. Actual evaluation of the named objects (what would be
714 * called a "second pass") happens during the actual execution of the
715 * method so that operands to the named objects can take on dynamic
716 * run-time values.
717 */
718 status = acpi_ps_parse_aml(walk_state);
719 if (ACPI_FAILURE(status)) {
720 goto cleanup2;
721 }
722
723 ACPI_DEBUG_PRINT((ACPI_DB_PARSE,
724 "**** [%4.4s] Parsed **** NamedObj=%p Op=%p\n",
725 acpi_ut_get_node_name(node), node, op));
726
727 /*
728 * Delete the parse tree. We simply re-parse the method for every
729 * execution since there isn't much overhead (compared to keeping lots
730 * of parse trees around)
731 */
732 acpi_ns_delete_namespace_subtree(node);
733 acpi_ns_delete_namespace_by_owner(obj_desc->method.owner_id);
734
735 cleanup2:
736 acpi_ut_release_owner_id(&obj_desc->method.owner_id);
737
738 cleanup:
739 acpi_ps_delete_parse_tree(op);
740 return_ACPI_STATUS(status);
741}
742#endif
diff --git a/drivers/acpi/dispatcher/dswexec.c b/drivers/acpi/dispatcher/dswexec.c
index 3acbd9145d72..b1ded62d0df1 100644
--- a/drivers/acpi/dispatcher/dswexec.c
+++ b/drivers/acpi/dispatcher/dswexec.c
@@ -472,7 +472,6 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
472 acpi_ds_result_push(walk_state->result_obj, 472 acpi_ds_result_push(walk_state->result_obj,
473 walk_state); 473 walk_state);
474 } 474 }
475
476 break; 475 break;
477 476
478 default: 477 default:
@@ -510,6 +509,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
510 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, 509 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
511 "Method Reference in a Package, Op=%p\n", 510 "Method Reference in a Package, Op=%p\n",
512 op)); 511 op));
512
513 op->common.node = 513 op->common.node =
514 (struct acpi_namespace_node *)op->asl.value. 514 (struct acpi_namespace_node *)op->asl.value.
515 arg->asl.node->object; 515 arg->asl.node->object;
@@ -670,7 +670,6 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
670 670
671 status = acpi_ds_result_stack_pop(walk_state); 671 status = acpi_ds_result_stack_pop(walk_state);
672 } 672 }
673
674 break; 673 break;
675 674
676 case AML_TYPE_UNDEFINED: 675 case AML_TYPE_UNDEFINED:
@@ -708,7 +707,6 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
708 * Check if we just completed the evaluation of a 707 * Check if we just completed the evaluation of a
709 * conditional predicate 708 * conditional predicate
710 */ 709 */
711
712 if ((ACPI_SUCCESS(status)) && 710 if ((ACPI_SUCCESS(status)) &&
713 (walk_state->control_state) && 711 (walk_state->control_state) &&
714 (walk_state->control_state->common.state == 712 (walk_state->control_state->common.state ==
diff --git a/drivers/acpi/dispatcher/dswload.c b/drivers/acpi/dispatcher/dswload.c
index 35074399c617..e3ca7f6539c1 100644
--- a/drivers/acpi/dispatcher/dswload.c
+++ b/drivers/acpi/dispatcher/dswload.c
@@ -175,7 +175,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
175 if (status == AE_NOT_FOUND) { 175 if (status == AE_NOT_FOUND) {
176 /* 176 /*
177 * Table disassembly: 177 * Table disassembly:
178 * Target of Scope() not found. Generate an External for it, and 178 * Target of Scope() not found. Generate an External for it, and
179 * insert the name into the namespace. 179 * insert the name into the namespace.
180 */ 180 */
181 acpi_dm_add_to_external_list(path, ACPI_TYPE_DEVICE, 0); 181 acpi_dm_add_to_external_list(path, ACPI_TYPE_DEVICE, 0);
@@ -210,16 +210,15 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
210 case ACPI_TYPE_BUFFER: 210 case ACPI_TYPE_BUFFER:
211 211
212 /* 212 /*
213 * These types we will allow, but we will change the type. This 213 * These types we will allow, but we will change the type. This
214 * enables some existing code of the form: 214 * enables some existing code of the form:
215 * 215 *
216 * Name (DEB, 0) 216 * Name (DEB, 0)
217 * Scope (DEB) { ... } 217 * Scope (DEB) { ... }
218 * 218 *
219 * Note: silently change the type here. On the second pass, we will report 219 * Note: silently change the type here. On the second pass, we will report
220 * a warning 220 * a warning
221 */ 221 */
222
223 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 222 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
224 "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n", 223 "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)\n",
225 path, 224 path,
@@ -242,7 +241,6 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
242 break; 241 break;
243 242
244 default: 243 default:
245
246 /* 244 /*
247 * For all other named opcodes, we will enter the name into 245 * For all other named opcodes, we will enter the name into
248 * the namespace. 246 * the namespace.
@@ -259,7 +257,6 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
259 * buffer_field, or Package), the name of the object is already 257 * buffer_field, or Package), the name of the object is already
260 * in the namespace. 258 * in the namespace.
261 */ 259 */
262
263 if (walk_state->deferred_node) { 260 if (walk_state->deferred_node) {
264 261
265 /* This name is already in the namespace, get the node */ 262 /* This name is already in the namespace, get the node */
@@ -293,8 +290,8 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
293 } 290 }
294 291
295 /* 292 /*
296 * Enter the named type into the internal namespace. We enter the name 293 * Enter the named type into the internal namespace. We enter the name
297 * as we go downward in the parse tree. Any necessary subobjects that 294 * as we go downward in the parse tree. Any necessary subobjects that
298 * involve arguments to the opcode must be created as we go back up the 295 * involve arguments to the opcode must be created as we go back up the
299 * parse tree later. 296 * parse tree later.
300 */ 297 */
@@ -327,12 +324,12 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
327 (status); 324 (status);
328 } 325 }
329 } 326 }
327
330 status = AE_OK; 328 status = AE_OK;
331 } 329 }
332 } 330 }
333 331
334 if (ACPI_FAILURE(status)) { 332 if (ACPI_FAILURE(status)) {
335
336 ACPI_ERROR_NAMESPACE(path, status); 333 ACPI_ERROR_NAMESPACE(path, status);
337 return_ACPI_STATUS(status); 334 return_ACPI_STATUS(status);
338 } 335 }
@@ -434,9 +431,13 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
434 status = 431 status =
435 acpi_ex_create_region(op->named.data, 432 acpi_ex_create_region(op->named.data,
436 op->named.length, 433 op->named.length,
437 (acpi_adr_space_type) 434 (acpi_adr_space_type) ((op->
438 ((op->common.value.arg)-> 435 common.
439 common.value.integer), 436 value.
437 arg)->
438 common.
439 value.
440 integer),
440 walk_state); 441 walk_state);
441 if (ACPI_FAILURE(status)) { 442 if (ACPI_FAILURE(status)) {
442 return_ACPI_STATUS(status); 443 return_ACPI_STATUS(status);
@@ -474,7 +475,7 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
474 * method_op pkg_length name_string method_flags term_list 475 * method_op pkg_length name_string method_flags term_list
475 * 476 *
476 * Note: We must create the method node/object pair as soon as we 477 * Note: We must create the method node/object pair as soon as we
477 * see the method declaration. This allows later pass1 parsing 478 * see the method declaration. This allows later pass1 parsing
478 * of invocations of the method (need to know the number of 479 * of invocations of the method (need to know the number of
479 * arguments.) 480 * arguments.)
480 */ 481 */
@@ -499,6 +500,7 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state)
499 length, 500 length,
500 walk_state); 501 walk_state);
501 } 502 }
503
502 walk_state->operands[0] = NULL; 504 walk_state->operands[0] = NULL;
503 walk_state->num_operands = 0; 505 walk_state->num_operands = 0;
504 506
@@ -570,7 +572,6 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
570#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE 572#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
571 if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || 573 if ((walk_state->op_info->class == AML_CLASS_EXECUTE) ||
572 (walk_state->op_info->class == AML_CLASS_CONTROL)) { 574 (walk_state->op_info->class == AML_CLASS_CONTROL)) {
573
574 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, 575 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
575 "Begin/EXEC: %s (fl %8.8X)\n", 576 "Begin/EXEC: %s (fl %8.8X)\n",
576 walk_state->op_info->name, 577 walk_state->op_info->name,
@@ -602,7 +603,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
602 } else { 603 } else {
603 /* Get name from the op */ 604 /* Get name from the op */
604 605
605 buffer_ptr = (char *)&op->named.name; 606 buffer_ptr = ACPI_CAST_PTR(char, &op->named.name);
606 } 607 }
607 } else { 608 } else {
608 /* Get the namestring from the raw AML */ 609 /* Get the namestring from the raw AML */
@@ -629,7 +630,6 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
629 break; 630 break;
630 631
631 case AML_INT_NAMEPATH_OP: 632 case AML_INT_NAMEPATH_OP:
632
633 /* 633 /*
634 * The name_path is an object reference to an existing object. 634 * The name_path is an object reference to an existing object.
635 * Don't enter the name into the namespace, but look it up 635 * Don't enter the name into the namespace, but look it up
@@ -642,7 +642,6 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
642 break; 642 break;
643 643
644 case AML_SCOPE_OP: 644 case AML_SCOPE_OP:
645
646 /* 645 /*
647 * The Path is an object reference to an existing object. 646 * The Path is an object reference to an existing object.
648 * Don't enter the name into the namespace, but look it up 647 * Don't enter the name into the namespace, but look it up
@@ -664,6 +663,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
664#endif 663#endif
665 return_ACPI_STATUS(status); 664 return_ACPI_STATUS(status);
666 } 665 }
666
667 /* 667 /*
668 * We must check to make sure that the target is 668 * We must check to make sure that the target is
669 * one of the opcodes that actually opens a scope 669 * one of the opcodes that actually opens a scope
@@ -683,13 +683,12 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
683 case ACPI_TYPE_BUFFER: 683 case ACPI_TYPE_BUFFER:
684 684
685 /* 685 /*
686 * These types we will allow, but we will change the type. This 686 * These types we will allow, but we will change the type. This
687 * enables some existing code of the form: 687 * enables some existing code of the form:
688 * 688 *
689 * Name (DEB, 0) 689 * Name (DEB, 0)
690 * Scope (DEB) { ... } 690 * Scope (DEB) { ... }
691 */ 691 */
692
693 ACPI_WARNING((AE_INFO, 692 ACPI_WARNING((AE_INFO,
694 "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)", 693 "Type override - [%4.4s] had invalid type (%s) for Scope operator, changed to (Scope)",
695 buffer_ptr, 694 buffer_ptr,
@@ -729,14 +728,14 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
729 if (ACPI_FAILURE(status)) { 728 if (ACPI_FAILURE(status)) {
730 return_ACPI_STATUS(status); 729 return_ACPI_STATUS(status);
731 } 730 }
732
733 } 731 }
732
734 return_ACPI_STATUS(AE_OK); 733 return_ACPI_STATUS(AE_OK);
735 } 734 }
736 735
737 /* 736 /*
738 * Enter the named type into the internal namespace. We enter the name 737 * Enter the named type into the internal namespace. We enter the name
739 * as we go downward in the parse tree. Any necessary subobjects that 738 * as we go downward in the parse tree. Any necessary subobjects that
740 * involve arguments to the opcode must be created as we go back up the 739 * involve arguments to the opcode must be created as we go back up the
741 * parse tree later. 740 * parse tree later.
742 * 741 *
@@ -787,7 +786,6 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
787 * can get it again quickly when this scope is closed 786 * can get it again quickly when this scope is closed
788 */ 787 */
789 op->common.node = node; 788 op->common.node = node;
790
791 return_ACPI_STATUS(status); 789 return_ACPI_STATUS(status);
792} 790}
793 791
@@ -922,7 +920,6 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
922#ifndef ACPI_NO_METHOD_EXECUTION 920#ifndef ACPI_NO_METHOD_EXECUTION
923 921
924 case AML_TYPE_CREATE_FIELD: 922 case AML_TYPE_CREATE_FIELD:
925
926 /* 923 /*
927 * Create the field object, but the field buffer and index must 924 * Create the field object, but the field buffer and index must
928 * be evaluated later during the execution phase 925 * be evaluated later during the execution phase
@@ -931,7 +928,6 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
931 break; 928 break;
932 929
933 case AML_TYPE_NAMED_FIELD: 930 case AML_TYPE_NAMED_FIELD:
934
935 /* 931 /*
936 * If we are executing a method, initialize the field 932 * If we are executing a method, initialize the field
937 */ 933 */
@@ -1051,6 +1047,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
1051 * argument is the space_id. (We must save the address of the 1047 * argument is the space_id. (We must save the address of the
1052 * AML of the address and length operands) 1048 * AML of the address and length operands)
1053 */ 1049 */
1050
1054 /* 1051 /*
1055 * If we have a valid region, initialize it 1052 * If we have a valid region, initialize it
1056 * Namespace is NOT locked at this point. 1053 * Namespace is NOT locked at this point.
@@ -1080,7 +1077,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
1080 * method_op pkg_length name_string method_flags term_list 1077 * method_op pkg_length name_string method_flags term_list
1081 * 1078 *
1082 * Note: We must create the method node/object pair as soon as we 1079 * Note: We must create the method node/object pair as soon as we
1083 * see the method declaration. This allows later pass1 parsing 1080 * see the method declaration. This allows later pass1 parsing
1084 * of invocations of the method (need to know the number of 1081 * of invocations of the method (need to know the number of
1085 * arguments.) 1082 * arguments.)
1086 */ 1083 */
diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c
index f01d339407f8..c76c0583ca6a 100644
--- a/drivers/acpi/events/evgpe.c
+++ b/drivers/acpi/events/evgpe.c
@@ -382,7 +382,6 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
382 u32 status_reg; 382 u32 status_reg;
383 u32 enable_reg; 383 u32 enable_reg;
384 acpi_cpu_flags flags; 384 acpi_cpu_flags flags;
385 acpi_cpu_flags hw_flags;
386 acpi_native_uint i; 385 acpi_native_uint i;
387 acpi_native_uint j; 386 acpi_native_uint j;
388 387
@@ -394,8 +393,11 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
394 return (int_status); 393 return (int_status);
395 } 394 }
396 395
397 /* We need to hold the GPE lock now, hardware lock in the loop */ 396 /*
398 397 * We need to obtain the GPE lock for both the data structs and registers
398 * Note: Not necessary to obtain the hardware lock, since the GPE registers
399 * are owned by the gpe_lock.
400 */
399 flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); 401 flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
400 402
401 /* Examine all GPE blocks attached to this interrupt level */ 403 /* Examine all GPE blocks attached to this interrupt level */
@@ -413,8 +415,6 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
413 415
414 gpe_register_info = &gpe_block->register_info[i]; 416 gpe_register_info = &gpe_block->register_info[i];
415 417
416 hw_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);
417
418 /* Read the Status Register */ 418 /* Read the Status Register */
419 419
420 status = 420 status =
@@ -423,8 +423,6 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
423 &gpe_register_info-> 423 &gpe_register_info->
424 status_address); 424 status_address);
425 if (ACPI_FAILURE(status)) { 425 if (ACPI_FAILURE(status)) {
426 acpi_os_release_lock(acpi_gbl_hardware_lock,
427 hw_flags);
428 goto unlock_and_exit; 426 goto unlock_and_exit;
429 } 427 }
430 428
@@ -435,8 +433,6 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
435 &enable_reg, 433 &enable_reg,
436 &gpe_register_info-> 434 &gpe_register_info->
437 enable_address); 435 enable_address);
438 acpi_os_release_lock(acpi_gbl_hardware_lock, hw_flags);
439
440 if (ACPI_FAILURE(status)) { 436 if (ACPI_FAILURE(status)) {
441 goto unlock_and_exit; 437 goto unlock_and_exit;
442 } 438 }
diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c
index 823352435e08..83fed079a276 100644
--- a/drivers/acpi/executer/exconfig.c
+++ b/drivers/acpi/executer/exconfig.c
@@ -266,6 +266,10 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
266 } 266 }
267 } 267 }
268 268
269 ACPI_INFO((AE_INFO,
270 "Dynamic OEM Table Load - [%4.4s] OemId [%6.6s] OemTableId [%8.8s]",
271 table->signature, table->oem_id, table->oem_table_id));
272
269 *return_desc = ddb_handle; 273 *return_desc = ddb_handle;
270 return_ACPI_STATUS(status); 274 return_ACPI_STATUS(status);
271} 275}
@@ -446,6 +450,10 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
446 return_ACPI_STATUS(status); 450 return_ACPI_STATUS(status);
447 } 451 }
448 452
453 ACPI_INFO((AE_INFO,
454 "Dynamic SSDT Load - OemId [%6.6s] OemTableId [%8.8s]",
455 table_ptr->oem_id, table_ptr->oem_table_id));
456
449 cleanup: 457 cleanup:
450 if (ACPI_FAILURE(status)) { 458 if (ACPI_FAILURE(status)) {
451 ACPI_FREE(table_ptr); 459 ACPI_FREE(table_ptr);
diff --git a/drivers/acpi/executer/excreate.c b/drivers/acpi/executer/excreate.c
index 106dc7219df7..34eec82c1b1e 100644
--- a/drivers/acpi/executer/excreate.c
+++ b/drivers/acpi/executer/excreate.c
@@ -177,7 +177,7 @@ acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state)
177 * that the event is created in an unsignalled state 177 * that the event is created in an unsignalled state
178 */ 178 */
179 status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, 179 status = acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0,
180 &obj_desc->event.semaphore); 180 &obj_desc->event.os_semaphore);
181 if (ACPI_FAILURE(status)) { 181 if (ACPI_FAILURE(status)) {
182 goto cleanup; 182 goto cleanup;
183 } 183 }
@@ -226,12 +226,9 @@ acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state)
226 goto cleanup; 226 goto cleanup;
227 } 227 }
228 228
229 /* 229 /* Create the actual OS Mutex */
230 * Create the actual OS semaphore. 230
231 * One unit max to make it a mutex, with one initial unit to allow 231 status = acpi_os_create_mutex(&obj_desc->mutex.os_mutex);
232 * the mutex to be acquired.
233 */
234 status = acpi_os_create_semaphore(1, 1, &obj_desc->mutex.semaphore);
235 if (ACPI_FAILURE(status)) { 232 if (ACPI_FAILURE(status)) {
236 goto cleanup; 233 goto cleanup;
237 } 234 }
@@ -565,7 +562,7 @@ acpi_ex_create_method(u8 * aml_start,
565 obj_desc->method.aml_length = aml_length; 562 obj_desc->method.aml_length = aml_length;
566 563
567 /* 564 /*
568 * Disassemble the method flags. Split off the Arg Count 565 * Disassemble the method flags. Split off the Arg Count
569 * for efficiency 566 * for efficiency
570 */ 567 */
571 method_flags = (u8) operand[1]->integer.value; 568 method_flags = (u8) operand[1]->integer.value;
@@ -576,21 +573,19 @@ acpi_ex_create_method(u8 * aml_start,
576 (u8) (method_flags & AML_METHOD_ARG_COUNT); 573 (u8) (method_flags & AML_METHOD_ARG_COUNT);
577 574
578 /* 575 /*
579 * Get the concurrency count. If required, a semaphore will be 576 * Get the sync_level. If method is serialized, a mutex will be
580 * created for this method when it is parsed. 577 * created for this method when it is parsed.
581 */ 578 */
582 if (acpi_gbl_all_methods_serialized) { 579 if (acpi_gbl_all_methods_serialized) {
583 obj_desc->method.concurrency = 1; 580 obj_desc->method.sync_level = 0;
584 obj_desc->method.method_flags |= AML_METHOD_SERIALIZED; 581 obj_desc->method.method_flags |= AML_METHOD_SERIALIZED;
585 } else if (method_flags & AML_METHOD_SERIALIZED) { 582 } else if (method_flags & AML_METHOD_SERIALIZED) {
586 /* 583 /*
587 * ACPI 1.0: Concurrency = 1 584 * ACPI 1.0: sync_level = 0
588 * ACPI 2.0: Concurrency = (sync_level (in method declaration) + 1) 585 * ACPI 2.0: sync_level = sync_level in method declaration
589 */ 586 */
590 obj_desc->method.concurrency = (u8) 587 obj_desc->method.sync_level = (u8)
591 (((method_flags & AML_METHOD_SYNCH_LEVEL) >> 4) + 1); 588 ((method_flags & AML_METHOD_SYNCH_LEVEL) >> 4);
592 } else {
593 obj_desc->method.concurrency = ACPI_INFINITE_CONCURRENCY;
594 } 589 }
595 590
596 /* Attach the new object to the method Node */ 591 /* Attach the new object to the method Node */
diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c
index 7b9718e976bf..2450943add33 100644
--- a/drivers/acpi/executer/exdump.c
+++ b/drivers/acpi/executer/exdump.c
@@ -118,14 +118,14 @@ static struct acpi_exdump_info acpi_ex_dump_device[4] = {
118 118
119static struct acpi_exdump_info acpi_ex_dump_event[2] = { 119static struct acpi_exdump_info acpi_ex_dump_event[2] = {
120 {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_event), NULL}, 120 {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_event), NULL},
121 {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(event.semaphore), "Semaphore"} 121 {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(event.os_semaphore), "OsSemaphore"}
122}; 122};
123 123
124static struct acpi_exdump_info acpi_ex_dump_method[8] = { 124static struct acpi_exdump_info acpi_ex_dump_method[8] = {
125 {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_method), NULL}, 125 {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_method), NULL},
126 {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "ParamCount"}, 126 {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "ParamCount"},
127 {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.concurrency), "Concurrency"}, 127 {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.sync_level), "Sync Level"},
128 {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.semaphore), "Semaphore"}, 128 {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.mutex), "Mutex"},
129 {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"}, 129 {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"},
130 {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.thread_count), "Thread Count"}, 130 {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.thread_count), "Thread Count"},
131 {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(method.aml_length), "Aml Length"}, 131 {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(method.aml_length), "Aml Length"},
@@ -138,7 +138,7 @@ static struct acpi_exdump_info acpi_ex_dump_mutex[5] = {
138 {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.owner_thread), "Owner Thread"}, 138 {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.owner_thread), "Owner Thread"},
139 {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(mutex.acquisition_depth), 139 {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(mutex.acquisition_depth),
140 "Acquire Depth"}, 140 "Acquire Depth"},
141 {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.semaphore), "Semaphore"} 141 {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.os_mutex), "OsMutex"}
142}; 142};
143 143
144static struct acpi_exdump_info acpi_ex_dump_region[7] = { 144static struct acpi_exdump_info acpi_ex_dump_region[7] = {
diff --git a/drivers/acpi/executer/exfldio.c b/drivers/acpi/executer/exfldio.c
index 051053f7cccb..40f0bee6faa5 100644
--- a/drivers/acpi/executer/exfldio.c
+++ b/drivers/acpi/executer/exfldio.c
@@ -727,11 +727,23 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc,
727 return_ACPI_STATUS(status); 727 return_ACPI_STATUS(status);
728 } 728 }
729 729
730 /* Merge with previous datum if necessary */ 730 /*
731 731 * Merge with previous datum if necessary.
732 merged_datum |= raw_datum << 732 *
733 (obj_desc->common_field.access_bit_width - 733 * Note: Before the shift, check if the shift value will be larger than
734 obj_desc->common_field.start_field_bit_offset); 734 * the integer size. If so, there is no need to perform the operation.
735 * This avoids the differences in behavior between different compilers
736 * concerning shift values larger than the target data width.
737 */
738 if ((obj_desc->common_field.access_bit_width -
739 obj_desc->common_field.start_field_bit_offset) <
740 ACPI_INTEGER_BIT_SIZE) {
741 merged_datum |=
742 raw_datum << (obj_desc->common_field.
743 access_bit_width -
744 obj_desc->common_field.
745 start_field_bit_offset);
746 }
735 747
736 if (i == datum_count) { 748 if (i == datum_count) {
737 break; 749 break;
@@ -808,13 +820,23 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
808 return_ACPI_STATUS(AE_BUFFER_OVERFLOW); 820 return_ACPI_STATUS(AE_BUFFER_OVERFLOW);
809 } 821 }
810 822
811 /* Compute the number of datums (access width data items) */ 823 /*
824 * Create the bitmasks used for bit insertion.
825 * Note: This if/else is used to bypass compiler differences with the
826 * shift operator
827 */
828 if (obj_desc->common_field.access_bit_width == ACPI_INTEGER_BIT_SIZE) {
829 width_mask = ACPI_INTEGER_MAX;
830 } else {
831 width_mask =
832 ACPI_MASK_BITS_ABOVE(obj_desc->common_field.
833 access_bit_width);
834 }
812 835
813 width_mask = 836 mask = width_mask &
814 ACPI_MASK_BITS_ABOVE(obj_desc->common_field.access_bit_width); 837 ACPI_MASK_BITS_BELOW(obj_desc->common_field.start_field_bit_offset);
815 mask = 838
816 width_mask & ACPI_MASK_BITS_BELOW(obj_desc->common_field. 839 /* Compute the number of datums (access width data items) */
817 start_field_bit_offset);
818 840
819 datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, 841 datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length,
820 obj_desc->common_field.access_bit_width); 842 obj_desc->common_field.access_bit_width);
@@ -848,12 +870,29 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
848 return_ACPI_STATUS(status); 870 return_ACPI_STATUS(status);
849 } 871 }
850 872
851 /* Start new output datum by merging with previous input datum */
852
853 field_offset += obj_desc->common_field.access_byte_width; 873 field_offset += obj_desc->common_field.access_byte_width;
854 merged_datum = raw_datum >> 874
855 (obj_desc->common_field.access_bit_width - 875 /*
856 obj_desc->common_field.start_field_bit_offset); 876 * Start new output datum by merging with previous input datum
877 * if necessary.
878 *
879 * Note: Before the shift, check if the shift value will be larger than
880 * the integer size. If so, there is no need to perform the operation.
881 * This avoids the differences in behavior between different compilers
882 * concerning shift values larger than the target data width.
883 */
884 if ((obj_desc->common_field.access_bit_width -
885 obj_desc->common_field.start_field_bit_offset) <
886 ACPI_INTEGER_BIT_SIZE) {
887 merged_datum =
888 raw_datum >> (obj_desc->common_field.
889 access_bit_width -
890 obj_desc->common_field.
891 start_field_bit_offset);
892 } else {
893 merged_datum = 0;
894 }
895
857 mask = width_mask; 896 mask = width_mask;
858 897
859 if (i == datum_count) { 898 if (i == datum_count) {
diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c
index 93098d68cadf..d8ac2877cf05 100644
--- a/drivers/acpi/executer/exmutex.c
+++ b/drivers/acpi/executer/exmutex.c
@@ -161,12 +161,13 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
161 161
162 /* 162 /*
163 * Current Sync must be less than or equal to the sync level of the 163 * Current Sync must be less than or equal to the sync level of the
164 * mutex. This mechanism provides some deadlock prevention 164 * mutex. This mechanism provides some deadlock prevention
165 */ 165 */
166 if (walk_state->thread->current_sync_level > obj_desc->mutex.sync_level) { 166 if (walk_state->thread->current_sync_level > obj_desc->mutex.sync_level) {
167 ACPI_ERROR((AE_INFO, 167 ACPI_ERROR((AE_INFO,
168 "Cannot acquire Mutex [%4.4s], incorrect SyncLevel", 168 "Cannot acquire Mutex [%4.4s], current SyncLevel is too large (%d)",
169 acpi_ut_get_node_name(obj_desc->mutex.node))); 169 acpi_ut_get_node_name(obj_desc->mutex.node),
170 walk_state->thread->current_sync_level));
170 return_ACPI_STATUS(AE_AML_MUTEX_ORDER); 171 return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
171 } 172 }
172 173
@@ -178,8 +179,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
178 179
179 if ((obj_desc->mutex.owner_thread->thread_id == 180 if ((obj_desc->mutex.owner_thread->thread_id ==
180 walk_state->thread->thread_id) || 181 walk_state->thread->thread_id) ||
181 (obj_desc->mutex.semaphore == 182 (obj_desc->mutex.os_mutex == ACPI_GLOBAL_LOCK)) {
182 acpi_gbl_global_lock_semaphore)) {
183 /* 183 /*
184 * The mutex is already owned by this thread, 184 * The mutex is already owned by this thread,
185 * just increment the acquisition depth 185 * just increment the acquisition depth
@@ -264,7 +264,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
264 */ 264 */
265 if ((obj_desc->mutex.owner_thread->thread_id != 265 if ((obj_desc->mutex.owner_thread->thread_id !=
266 walk_state->thread->thread_id) 266 walk_state->thread->thread_id)
267 && (obj_desc->mutex.semaphore != acpi_gbl_global_lock_semaphore)) { 267 && (obj_desc->mutex.os_mutex != ACPI_GLOBAL_LOCK)) {
268 ACPI_ERROR((AE_INFO, 268 ACPI_ERROR((AE_INFO,
269 "Thread %X cannot release Mutex [%4.4s] acquired by thread %X", 269 "Thread %X cannot release Mutex [%4.4s] acquired by thread %X",
270 walk_state->thread->thread_id, 270 walk_state->thread->thread_id,
diff --git a/drivers/acpi/executer/exsystem.c b/drivers/acpi/executer/exsystem.c
index 52beee3674a0..6b5d1e6ce94b 100644
--- a/drivers/acpi/executer/exsystem.c
+++ b/drivers/acpi/executer/exsystem.c
@@ -63,14 +63,14 @@ ACPI_MODULE_NAME("exsystem")
63 * interpreter is released. 63 * interpreter is released.
64 * 64 *
65 ******************************************************************************/ 65 ******************************************************************************/
66acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout) 66acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
67{ 67{
68 acpi_status status; 68 acpi_status status;
69 acpi_status status2; 69 acpi_status status2;
70 70
71 ACPI_FUNCTION_TRACE(ex_system_wait_semaphore); 71 ACPI_FUNCTION_TRACE(ex_system_wait_semaphore);
72 72
73 status = acpi_os_wait_semaphore(semaphore, 1, 0); 73 status = acpi_os_wait_semaphore(semaphore, 1, ACPI_DO_NOT_WAIT);
74 if (ACPI_SUCCESS(status)) { 74 if (ACPI_SUCCESS(status)) {
75 return_ACPI_STATUS(status); 75 return_ACPI_STATUS(status);
76 } 76 }
@@ -103,6 +103,59 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout)
103 103
104/******************************************************************************* 104/*******************************************************************************
105 * 105 *
106 * FUNCTION: acpi_ex_system_wait_mutex
107 *
108 * PARAMETERS: Mutex - Mutex to wait on
109 * Timeout - Max time to wait
110 *
111 * RETURN: Status
112 *
113 * DESCRIPTION: Implements a semaphore wait with a check to see if the
114 * semaphore is available immediately. If it is not, the
115 * interpreter is released.
116 *
117 ******************************************************************************/
118
119acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout)
120{
121 acpi_status status;
122 acpi_status status2;
123
124 ACPI_FUNCTION_TRACE(ex_system_wait_mutex);
125
126 status = acpi_os_acquire_mutex(mutex, ACPI_DO_NOT_WAIT);
127 if (ACPI_SUCCESS(status)) {
128 return_ACPI_STATUS(status);
129 }
130
131 if (status == AE_TIME) {
132
133 /* We must wait, so unlock the interpreter */
134
135 acpi_ex_exit_interpreter();
136
137 status = acpi_os_acquire_mutex(mutex, timeout);
138
139 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
140 "*** Thread awake after blocking, %s\n",
141 acpi_format_exception(status)));
142
143 /* Reacquire the interpreter */
144
145 status2 = acpi_ex_enter_interpreter();
146 if (ACPI_FAILURE(status2)) {
147
148 /* Report fatal error, could not acquire interpreter */
149
150 return_ACPI_STATUS(status2);
151 }
152 }
153
154 return_ACPI_STATUS(status);
155}
156
157/*******************************************************************************
158 *
106 * FUNCTION: acpi_ex_system_do_stall 159 * FUNCTION: acpi_ex_system_do_stall
107 * 160 *
108 * PARAMETERS: how_long - The amount of time to stall, 161 * PARAMETERS: how_long - The amount of time to stall,
@@ -176,7 +229,7 @@ acpi_status acpi_ex_system_do_suspend(acpi_integer how_long)
176 * 229 *
177 * FUNCTION: acpi_ex_system_acquire_mutex 230 * FUNCTION: acpi_ex_system_acquire_mutex
178 * 231 *
179 * PARAMETERS: time_desc - The 'time to delay' object descriptor 232 * PARAMETERS: time_desc - Maximum time to wait for the mutex
180 * obj_desc - The object descriptor for this op 233 * obj_desc - The object descriptor for this op
181 * 234 *
182 * RETURN: Status 235 * RETURN: Status
@@ -201,14 +254,14 @@ acpi_ex_system_acquire_mutex(union acpi_operand_object * time_desc,
201 254
202 /* Support for the _GL_ Mutex object -- go get the global lock */ 255 /* Support for the _GL_ Mutex object -- go get the global lock */
203 256
204 if (obj_desc->mutex.semaphore == acpi_gbl_global_lock_semaphore) { 257 if (obj_desc->mutex.os_mutex == ACPI_GLOBAL_LOCK) {
205 status = 258 status =
206 acpi_ev_acquire_global_lock((u16) time_desc->integer.value); 259 acpi_ev_acquire_global_lock((u16) time_desc->integer.value);
207 return_ACPI_STATUS(status); 260 return_ACPI_STATUS(status);
208 } 261 }
209 262
210 status = acpi_ex_system_wait_semaphore(obj_desc->mutex.semaphore, 263 status = acpi_ex_system_wait_mutex(obj_desc->mutex.os_mutex,
211 (u16) time_desc->integer.value); 264 (u16) time_desc->integer.value);
212 return_ACPI_STATUS(status); 265 return_ACPI_STATUS(status);
213} 266}
214 267
@@ -239,13 +292,13 @@ acpi_status acpi_ex_system_release_mutex(union acpi_operand_object *obj_desc)
239 292
240 /* Support for the _GL_ Mutex object -- release the global lock */ 293 /* Support for the _GL_ Mutex object -- release the global lock */
241 294
242 if (obj_desc->mutex.semaphore == acpi_gbl_global_lock_semaphore) { 295 if (obj_desc->mutex.os_mutex == ACPI_GLOBAL_LOCK) {
243 status = acpi_ev_release_global_lock(); 296 status = acpi_ev_release_global_lock();
244 return_ACPI_STATUS(status); 297 return_ACPI_STATUS(status);
245 } 298 }
246 299
247 status = acpi_os_signal_semaphore(obj_desc->mutex.semaphore, 1); 300 acpi_os_release_mutex(obj_desc->mutex.os_mutex);
248 return_ACPI_STATUS(status); 301 return_ACPI_STATUS(AE_OK);
249} 302}
250 303
251/******************************************************************************* 304/*******************************************************************************
@@ -268,7 +321,8 @@ acpi_status acpi_ex_system_signal_event(union acpi_operand_object *obj_desc)
268 ACPI_FUNCTION_TRACE(ex_system_signal_event); 321 ACPI_FUNCTION_TRACE(ex_system_signal_event);
269 322
270 if (obj_desc) { 323 if (obj_desc) {
271 status = acpi_os_signal_semaphore(obj_desc->event.semaphore, 1); 324 status =
325 acpi_os_signal_semaphore(obj_desc->event.os_semaphore, 1);
272 } 326 }
273 327
274 return_ACPI_STATUS(status); 328 return_ACPI_STATUS(status);
@@ -299,7 +353,7 @@ acpi_ex_system_wait_event(union acpi_operand_object *time_desc,
299 353
300 if (obj_desc) { 354 if (obj_desc) {
301 status = 355 status =
302 acpi_ex_system_wait_semaphore(obj_desc->event.semaphore, 356 acpi_ex_system_wait_semaphore(obj_desc->event.os_semaphore,
303 (u16) time_desc->integer. 357 (u16) time_desc->integer.
304 value); 358 value);
305 } 359 }
@@ -322,7 +376,7 @@ acpi_ex_system_wait_event(union acpi_operand_object *time_desc,
322acpi_status acpi_ex_system_reset_event(union acpi_operand_object *obj_desc) 376acpi_status acpi_ex_system_reset_event(union acpi_operand_object *obj_desc)
323{ 377{
324 acpi_status status = AE_OK; 378 acpi_status status = AE_OK;
325 void *temp_semaphore; 379 acpi_semaphore temp_semaphore;
326 380
327 ACPI_FUNCTION_ENTRY(); 381 ACPI_FUNCTION_ENTRY();
328 382
@@ -333,8 +387,8 @@ acpi_status acpi_ex_system_reset_event(union acpi_operand_object *obj_desc)
333 status = 387 status =
334 acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, &temp_semaphore); 388 acpi_os_create_semaphore(ACPI_NO_UNIT_LIMIT, 0, &temp_semaphore);
335 if (ACPI_SUCCESS(status)) { 389 if (ACPI_SUCCESS(status)) {
336 (void)acpi_os_delete_semaphore(obj_desc->event.semaphore); 390 (void)acpi_os_delete_semaphore(obj_desc->event.os_semaphore);
337 obj_desc->event.semaphore = temp_semaphore; 391 obj_desc->event.os_semaphore = temp_semaphore;
338 } 392 }
339 393
340 return (status); 394 return (status);
diff --git a/drivers/acpi/hardware/hwregs.c b/drivers/acpi/hardware/hwregs.c
index ae142de19507..3143f36fcec9 100644
--- a/drivers/acpi/hardware/hwregs.c
+++ b/drivers/acpi/hardware/hwregs.c
@@ -172,9 +172,9 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 * sleep_type_a, u8 * sleep_type_b)
172 } 172 }
173 173
174 /* 174 /*
175 * The package must have at least two elements. NOTE (March 2005): This 175 * The package must have at least two elements. NOTE (March 2005): This
176 * goes against the current ACPI spec which defines this object as a 176 * goes against the current ACPI spec which defines this object as a
177 * package with one encoded DWORD element. However, existing practice 177 * package with one encoded DWORD element. However, existing practice
178 * by BIOS vendors seems to be to have 2 or more elements, at least 178 * by BIOS vendors seems to be to have 2 or more elements, at least
179 * one per sleep type (A/B). 179 * one per sleep type (A/B).
180 */ 180 */
@@ -255,7 +255,7 @@ struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id)
255 * return_value - Value that was read from the register 255 * return_value - Value that was read from the register
256 * Flags - Lock the hardware or not 256 * Flags - Lock the hardware or not
257 * 257 *
258 * RETURN: Status and the value read from specified Register. Value 258 * RETURN: Status and the value read from specified Register. Value
259 * returned is normalized to bit0 (is shifted all the way right) 259 * returned is normalized to bit0 (is shifted all the way right)
260 * 260 *
261 * DESCRIPTION: ACPI bit_register read function. 261 * DESCRIPTION: ACPI bit_register read function.
@@ -361,8 +361,8 @@ acpi_status acpi_set_register(u32 register_id, u32 value, u32 flags)
361 case ACPI_REGISTER_PM1_STATUS: 361 case ACPI_REGISTER_PM1_STATUS:
362 362
363 /* 363 /*
364 * Status Registers are different from the rest. Clear by 364 * Status Registers are different from the rest. Clear by
365 * writing 1, and writing 0 has no effect. So, the only relevant 365 * writing 1, and writing 0 has no effect. So, the only relevant
366 * information is the single bit we're interested in, all others should 366 * information is the single bit we're interested in, all others should
367 * be written as 0 so they will be left unchanged. 367 * be written as 0 so they will be left unchanged.
368 */ 368 */
@@ -467,14 +467,13 @@ ACPI_EXPORT_SYMBOL(acpi_set_register)
467 * 467 *
468 * FUNCTION: acpi_hw_register_read 468 * FUNCTION: acpi_hw_register_read
469 * 469 *
470 * PARAMETERS: use_lock - Mutex hw access 470 * PARAMETERS: use_lock - Lock hardware? True/False
471 * register_id - register_iD + Offset 471 * register_id - ACPI Register ID
472 * return_value - Where the register value is returned 472 * return_value - Where the register value is returned
473 * 473 *
474 * RETURN: Status and the value read. 474 * RETURN: Status and the value read.
475 * 475 *
476 * DESCRIPTION: Acpi register read function. Registers are read at the 476 * DESCRIPTION: Read from the specified ACPI register
477 * given offset.
478 * 477 *
479 ******************************************************************************/ 478 ******************************************************************************/
480acpi_status 479acpi_status
@@ -580,14 +579,26 @@ acpi_hw_register_read(u8 use_lock, u32 register_id, u32 * return_value)
580 * 579 *
581 * FUNCTION: acpi_hw_register_write 580 * FUNCTION: acpi_hw_register_write
582 * 581 *
583 * PARAMETERS: use_lock - Mutex hw access 582 * PARAMETERS: use_lock - Lock hardware? True/False
584 * register_id - register_iD + Offset 583 * register_id - ACPI Register ID
585 * Value - The value to write 584 * Value - The value to write
586 * 585 *
587 * RETURN: Status 586 * RETURN: Status
588 * 587 *
589 * DESCRIPTION: Acpi register Write function. Registers are written at the 588 * DESCRIPTION: Write to the specified ACPI register
590 * given offset. 589 *
590 * NOTE: In accordance with the ACPI specification, this function automatically
591 * preserves the value of the following bits, meaning that these bits cannot be
592 * changed via this interface:
593 *
594 * PM1_CONTROL[0] = SCI_EN
595 * PM1_CONTROL[9]
596 * PM1_STATUS[11]
597 *
598 * ACPI References:
599 * 1) Hardware Ignored Bits: When software writes to a register with ignored
600 * bit fields, it preserves the ignored bit fields
601 * 2) SCI_EN: OSPM always preserves this bit position
591 * 602 *
592 ******************************************************************************/ 603 ******************************************************************************/
593 604
@@ -595,6 +606,7 @@ acpi_status acpi_hw_register_write(u8 use_lock, u32 register_id, u32 value)
595{ 606{
596 acpi_status status; 607 acpi_status status;
597 acpi_cpu_flags lock_flags = 0; 608 acpi_cpu_flags lock_flags = 0;
609 u32 read_value;
598 610
599 ACPI_FUNCTION_TRACE(hw_register_write); 611 ACPI_FUNCTION_TRACE(hw_register_write);
600 612
@@ -605,6 +617,22 @@ acpi_status acpi_hw_register_write(u8 use_lock, u32 register_id, u32 value)
605 switch (register_id) { 617 switch (register_id) {
606 case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */ 618 case ACPI_REGISTER_PM1_STATUS: /* 16-bit access */
607 619
620 /* Perform a read first to preserve certain bits (per ACPI spec) */
621
622 status = acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK,
623 ACPI_REGISTER_PM1_STATUS,
624 &read_value);
625 if (ACPI_FAILURE(status)) {
626 goto unlock_and_exit;
627 }
628
629 /* Insert the bits to be preserved */
630
631 ACPI_INSERT_BITS(value, ACPI_PM1_STATUS_PRESERVED_BITS,
632 read_value);
633
634 /* Now we can write the data */
635
608 status = 636 status =
609 acpi_hw_low_level_write(16, value, 637 acpi_hw_low_level_write(16, value,
610 &acpi_gbl_FADT->xpm1a_evt_blk); 638 &acpi_gbl_FADT->xpm1a_evt_blk);
@@ -635,6 +663,25 @@ acpi_status acpi_hw_register_write(u8 use_lock, u32 register_id, u32 value)
635 663
636 case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */ 664 case ACPI_REGISTER_PM1_CONTROL: /* 16-bit access */
637 665
666 /*
667 * Perform a read first to preserve certain bits (per ACPI spec)
668 *
669 * Note: This includes SCI_EN, we never want to change this bit
670 */
671 status = acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK,
672 ACPI_REGISTER_PM1_CONTROL,
673 &read_value);
674 if (ACPI_FAILURE(status)) {
675 goto unlock_and_exit;
676 }
677
678 /* Insert the bits to be preserved */
679
680 ACPI_INSERT_BITS(value, ACPI_PM1_CONTROL_PRESERVED_BITS,
681 read_value);
682
683 /* Now we can write the data */
684
638 status = 685 status =
639 acpi_hw_low_level_write(16, value, 686 acpi_hw_low_level_write(16, value,
640 &acpi_gbl_FADT->xpm1a_cnt_blk); 687 &acpi_gbl_FADT->xpm1a_cnt_blk);
@@ -726,7 +773,7 @@ acpi_hw_low_level_read(u32 width, u32 * value, struct acpi_generic_address *reg)
726 return (AE_OK); 773 return (AE_OK);
727 } 774 }
728 775
729 /* Get a local copy of the address. Handles possible alignment issues */ 776 /* Get a local copy of the address. Handles possible alignment issues */
730 777
731 ACPI_MOVE_64_TO_64(&address, &reg->address); 778 ACPI_MOVE_64_TO_64(&address, &reg->address);
732 if (!address) { 779 if (!address) {
@@ -798,7 +845,7 @@ acpi_hw_low_level_write(u32 width, u32 value, struct acpi_generic_address * reg)
798 return (AE_OK); 845 return (AE_OK);
799 } 846 }
800 847
801 /* Get a local copy of the address. Handles possible alignment issues */ 848 /* Get a local copy of the address. Handles possible alignment issues */
802 849
803 ACPI_MOVE_64_TO_64(&address, &reg->address); 850 ACPI_MOVE_64_TO_64(&address, &reg->address);
804 if (!address) { 851 if (!address) {
diff --git a/drivers/acpi/namespace/nsaccess.c b/drivers/acpi/namespace/nsaccess.c
index 48fadade52e2..c1c6c236df9a 100644
--- a/drivers/acpi/namespace/nsaccess.c
+++ b/drivers/acpi/namespace/nsaccess.c
@@ -196,33 +196,30 @@ acpi_status acpi_ns_root_initialize(void)
196 (u8) (ACPI_TO_INTEGER(val) - 1); 196 (u8) (ACPI_TO_INTEGER(val) - 1);
197 197
198 if (ACPI_STRCMP(init_val->name, "_GL_") == 0) { 198 if (ACPI_STRCMP(init_val->name, "_GL_") == 0) {
199 /* 199
200 * Create a counting semaphore for the 200 /* Create a counting semaphore for the global lock */
201 * global lock 201
202 */
203 status = 202 status =
204 acpi_os_create_semaphore 203 acpi_os_create_semaphore
205 (ACPI_NO_UNIT_LIMIT, 1, 204 (ACPI_NO_UNIT_LIMIT, 1,
206 &obj_desc->mutex.semaphore); 205 &acpi_gbl_global_lock_semaphore);
207 if (ACPI_FAILURE(status)) { 206 if (ACPI_FAILURE(status)) {
208 acpi_ut_remove_reference 207 acpi_ut_remove_reference
209 (obj_desc); 208 (obj_desc);
210 goto unlock_and_exit; 209 goto unlock_and_exit;
211 } 210 }
212 211
213 /* 212 /* Mark this mutex as very special */
214 * We just created the mutex for the 213
215 * global lock, save it 214 obj_desc->mutex.os_mutex =
216 */ 215 ACPI_GLOBAL_LOCK;
217 acpi_gbl_global_lock_semaphore =
218 obj_desc->mutex.semaphore;
219 } else { 216 } else {
220 /* Create a mutex */ 217 /* Create a mutex */
221 218
222 status = acpi_os_create_semaphore(1, 1, 219 status =
223 &obj_desc-> 220 acpi_os_create_mutex(&obj_desc->
224 mutex. 221 mutex.
225 semaphore); 222 os_mutex);
226 if (ACPI_FAILURE(status)) { 223 if (ACPI_FAILURE(status)) {
227 acpi_ut_remove_reference 224 acpi_ut_remove_reference
228 (obj_desc); 225 (obj_desc);
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 8e46d1b39491..afd937b158b3 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -688,18 +688,9 @@ EXPORT_SYMBOL(acpi_os_wait_events_complete);
688/* 688/*
689 * Allocate the memory for a spinlock and initialize it. 689 * Allocate the memory for a spinlock and initialize it.
690 */ 690 */
691acpi_status acpi_os_create_lock(acpi_handle * out_handle) 691acpi_status acpi_os_create_lock(acpi_spinlock * handle)
692{ 692{
693 spinlock_t *lock_ptr; 693 spin_lock_init(*handle);
694
695
696 lock_ptr = acpi_os_allocate(sizeof(spinlock_t));
697
698 spin_lock_init(lock_ptr);
699
700 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Creating spinlock[%p].\n", lock_ptr));
701
702 *out_handle = lock_ptr;
703 694
704 return AE_OK; 695 return AE_OK;
705} 696}
@@ -707,13 +698,8 @@ acpi_status acpi_os_create_lock(acpi_handle * out_handle)
707/* 698/*
708 * Deallocate the memory for a spinlock. 699 * Deallocate the memory for a spinlock.
709 */ 700 */
710void acpi_os_delete_lock(acpi_handle handle) 701void acpi_os_delete_lock(acpi_spinlock handle)
711{ 702{
712
713 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Deleting spinlock[%p].\n", handle));
714
715 acpi_os_free(handle);
716
717 return; 703 return;
718} 704}
719 705
@@ -1037,10 +1023,10 @@ EXPORT_SYMBOL(max_cstate);
1037 * handle is a pointer to the spinlock_t. 1023 * handle is a pointer to the spinlock_t.
1038 */ 1024 */
1039 1025
1040acpi_cpu_flags acpi_os_acquire_lock(acpi_handle handle) 1026acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock lockp)
1041{ 1027{
1042 acpi_cpu_flags flags; 1028 acpi_cpu_flags flags;
1043 spin_lock_irqsave((spinlock_t *) handle, flags); 1029 spin_lock_irqsave(lockp, flags);
1044 return flags; 1030 return flags;
1045} 1031}
1046 1032
@@ -1048,9 +1034,9 @@ acpi_cpu_flags acpi_os_acquire_lock(acpi_handle handle)
1048 * Release a spinlock. See above. 1034 * Release a spinlock. See above.
1049 */ 1035 */
1050 1036
1051void acpi_os_release_lock(acpi_handle handle, acpi_cpu_flags flags) 1037void acpi_os_release_lock(acpi_spinlock lockp, acpi_cpu_flags flags)
1052{ 1038{
1053 spin_unlock_irqrestore((spinlock_t *) handle, flags); 1039 spin_unlock_irqrestore(lockp, flags);
1054} 1040}
1055 1041
1056#ifndef ACPI_USE_LOCAL_CACHE 1042#ifndef ACPI_USE_LOCAL_CACHE
diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c
index 7ee2f2e77525..a02aa62fe1e5 100644
--- a/drivers/acpi/parser/psparse.c
+++ b/drivers/acpi/parser/psparse.c
@@ -469,6 +469,16 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
469 } 469 }
470 470
471 walk_state->thread = thread; 471 walk_state->thread = thread;
472
473 /*
474 * If executing a method, the starting sync_level is this method's
475 * sync_level
476 */
477 if (walk_state->method_desc) {
478 walk_state->thread->current_sync_level =
479 walk_state->method_desc->method.sync_level;
480 }
481
472 acpi_ds_push_walk_state(walk_state, thread); 482 acpi_ds_push_walk_state(walk_state, thread);
473 483
474 /* 484 /*
@@ -505,6 +515,10 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
505 status = 515 status =
506 acpi_ds_call_control_method(thread, walk_state, 516 acpi_ds_call_control_method(thread, walk_state,
507 NULL); 517 NULL);
518 if (ACPI_FAILURE(status)) {
519 status =
520 acpi_ds_method_error(status, walk_state);
521 }
508 522
509 /* 523 /*
510 * If the transfer to the new method method call worked, a new walk 524 * If the transfer to the new method method call worked, a new walk
@@ -525,7 +539,7 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
525 /* Check for possible multi-thread reentrancy problem */ 539 /* Check for possible multi-thread reentrancy problem */
526 540
527 if ((status == AE_ALREADY_EXISTS) && 541 if ((status == AE_ALREADY_EXISTS) &&
528 (!walk_state->method_desc->method.semaphore)) { 542 (!walk_state->method_desc->method.mutex)) {
529 /* 543 /*
530 * Method tried to create an object twice. The probable cause is 544 * Method tried to create an object twice. The probable cause is
531 * that the method cannot handle reentrancy. 545 * that the method cannot handle reentrancy.
@@ -537,7 +551,7 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state)
537 */ 551 */
538 walk_state->method_desc->method.method_flags |= 552 walk_state->method_desc->method.method_flags |=
539 AML_METHOD_SERIALIZED; 553 AML_METHOD_SERIALIZED;
540 walk_state->method_desc->method.concurrency = 1; 554 walk_state->method_desc->method.sync_level = 0;
541 } 555 }
542 } 556 }
543 557
diff --git a/drivers/acpi/utilities/utdelete.c b/drivers/acpi/utilities/utdelete.c
index 67b9f325c6fa..38ebe1c54330 100644
--- a/drivers/acpi/utilities/utdelete.c
+++ b/drivers/acpi/utilities/utdelete.c
@@ -155,21 +155,30 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
155 case ACPI_TYPE_MUTEX: 155 case ACPI_TYPE_MUTEX:
156 156
157 ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, 157 ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
158 "***** Mutex %p, Semaphore %p\n", 158 "***** Mutex %p, OS Mutex %p\n",
159 object, object->mutex.semaphore)); 159 object, object->mutex.os_mutex));
160 160
161 acpi_ex_unlink_mutex(object); 161 if (object->mutex.os_mutex != ACPI_GLOBAL_LOCK) {
162 (void)acpi_os_delete_semaphore(object->mutex.semaphore); 162 acpi_ex_unlink_mutex(object);
163 acpi_os_delete_mutex(object->mutex.os_mutex);
164 } else {
165 /* Global Lock "mutex" is actually a counting semaphore */
166
167 (void)
168 acpi_os_delete_semaphore
169 (acpi_gbl_global_lock_semaphore);
170 acpi_gbl_global_lock_semaphore = NULL;
171 }
163 break; 172 break;
164 173
165 case ACPI_TYPE_EVENT: 174 case ACPI_TYPE_EVENT:
166 175
167 ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, 176 ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
168 "***** Event %p, Semaphore %p\n", 177 "***** Event %p, OS Semaphore %p\n",
169 object, object->event.semaphore)); 178 object, object->event.os_semaphore));
170 179
171 (void)acpi_os_delete_semaphore(object->event.semaphore); 180 (void)acpi_os_delete_semaphore(object->event.os_semaphore);
172 object->event.semaphore = NULL; 181 object->event.os_semaphore = NULL;
173 break; 182 break;
174 183
175 case ACPI_TYPE_METHOD: 184 case ACPI_TYPE_METHOD:
@@ -177,12 +186,13 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
177 ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, 186 ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS,
178 "***** Method %p\n", object)); 187 "***** Method %p\n", object));
179 188
180 /* Delete the method semaphore if it exists */ 189 /* Delete the method mutex if it exists */
181 190
182 if (object->method.semaphore) { 191 if (object->method.mutex) {
183 (void)acpi_os_delete_semaphore(object->method. 192 acpi_os_delete_mutex(object->method.mutex->mutex.
184 semaphore); 193 os_mutex);
185 object->method.semaphore = NULL; 194 acpi_ut_delete_object_desc(object->method.mutex);
195 object->method.mutex = NULL;
186 } 196 }
187 break; 197 break;
188 198
diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index e5999c65c0b8..014030af8b50 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -794,6 +794,7 @@ void acpi_ut_init_globals(void)
794 794
795 /* Global Lock support */ 795 /* Global Lock support */
796 796
797 acpi_gbl_global_lock_semaphore = NULL;
797 acpi_gbl_global_lock_acquired = FALSE; 798 acpi_gbl_global_lock_acquired = FALSE;
798 acpi_gbl_global_lock_thread_count = 0; 799 acpi_gbl_global_lock_thread_count = 0;
799 acpi_gbl_global_lock_handle = 0; 800 acpi_gbl_global_lock_handle = 0;
diff --git a/drivers/acpi/utilities/utmutex.c b/drivers/acpi/utilities/utmutex.c
index 25eb34369afa..dfc8f30ca892 100644
--- a/drivers/acpi/utilities/utmutex.c
+++ b/drivers/acpi/utilities/utmutex.c
@@ -82,12 +82,9 @@ acpi_status acpi_ut_mutex_initialize(void)
82 82
83 /* Create the spinlocks for use at interrupt level */ 83 /* Create the spinlocks for use at interrupt level */
84 84
85 status = acpi_os_create_lock(&acpi_gbl_gpe_lock); 85 spin_lock_init(acpi_gbl_gpe_lock);
86 if (ACPI_FAILURE(status)) { 86 spin_lock_init(acpi_gbl_hardware_lock);
87 return_ACPI_STATUS(status);
88 }
89 87
90 status = acpi_os_create_lock(&acpi_gbl_hardware_lock);
91 return_ACPI_STATUS(status); 88 return_ACPI_STATUS(status);
92} 89}
93 90
@@ -146,9 +143,8 @@ static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id)
146 } 143 }
147 144
148 if (!acpi_gbl_mutex_info[mutex_id].mutex) { 145 if (!acpi_gbl_mutex_info[mutex_id].mutex) {
149 status = acpi_os_create_semaphore(1, 1, 146 status =
150 &acpi_gbl_mutex_info 147 acpi_os_create_mutex(&acpi_gbl_mutex_info[mutex_id].mutex);
151 [mutex_id].mutex);
152 acpi_gbl_mutex_info[mutex_id].thread_id = 148 acpi_gbl_mutex_info[mutex_id].thread_id =
153 ACPI_MUTEX_NOT_ACQUIRED; 149 ACPI_MUTEX_NOT_ACQUIRED;
154 acpi_gbl_mutex_info[mutex_id].use_count = 0; 150 acpi_gbl_mutex_info[mutex_id].use_count = 0;
@@ -171,7 +167,6 @@ static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id)
171 167
172static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id) 168static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id)
173{ 169{
174 acpi_status status;
175 170
176 ACPI_FUNCTION_TRACE_U32(ut_delete_mutex, mutex_id); 171 ACPI_FUNCTION_TRACE_U32(ut_delete_mutex, mutex_id);
177 172
@@ -179,12 +174,12 @@ static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id)
179 return_ACPI_STATUS(AE_BAD_PARAMETER); 174 return_ACPI_STATUS(AE_BAD_PARAMETER);
180 } 175 }
181 176
182 status = acpi_os_delete_semaphore(acpi_gbl_mutex_info[mutex_id].mutex); 177 acpi_os_delete_mutex(acpi_gbl_mutex_info[mutex_id].mutex);
183 178
184 acpi_gbl_mutex_info[mutex_id].mutex = NULL; 179 acpi_gbl_mutex_info[mutex_id].mutex = NULL;
185 acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED; 180 acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
186 181
187 return_ACPI_STATUS(status); 182 return_ACPI_STATUS(AE_OK);
188} 183}
189 184
190/******************************************************************************* 185/*******************************************************************************
@@ -251,8 +246,8 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
251 "Thread %X attempting to acquire Mutex [%s]\n", 246 "Thread %X attempting to acquire Mutex [%s]\n",
252 this_thread_id, acpi_ut_get_mutex_name(mutex_id))); 247 this_thread_id, acpi_ut_get_mutex_name(mutex_id)));
253 248
254 status = acpi_os_wait_semaphore(acpi_gbl_mutex_info[mutex_id].mutex, 249 status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex,
255 1, ACPI_WAIT_FOREVER); 250 ACPI_WAIT_FOREVER);
256 if (ACPI_SUCCESS(status)) { 251 if (ACPI_SUCCESS(status)) {
257 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, 252 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
258 "Thread %X acquired Mutex [%s]\n", 253 "Thread %X acquired Mutex [%s]\n",
@@ -284,7 +279,6 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
284 279
285acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id) 280acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
286{ 281{
287 acpi_status status;
288 acpi_thread_id this_thread_id; 282 acpi_thread_id this_thread_id;
289 283
290 ACPI_FUNCTION_NAME(ut_release_mutex); 284 ACPI_FUNCTION_NAME(ut_release_mutex);
@@ -340,19 +334,6 @@ acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
340 334
341 acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED; 335 acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
342 336
343 status = 337 acpi_os_release_mutex(acpi_gbl_mutex_info[mutex_id].mutex);
344 acpi_os_signal_semaphore(acpi_gbl_mutex_info[mutex_id].mutex, 1); 338 return (AE_OK);
345
346 if (ACPI_FAILURE(status)) {
347 ACPI_EXCEPTION((AE_INFO, status,
348 "Thread %X could not release Mutex [%X]",
349 this_thread_id, mutex_id));
350 } else {
351 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
352 "Thread %X released Mutex [%s]\n",
353 this_thread_id,
354 acpi_ut_get_mutex_name(mutex_id)));
355 }
356
357 return (status);
358} 339}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-17 01:39:47 -0500