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authorRobert Moore <robert.moore@intel.com>2005-07-29 18:15:00 -0400
committerLen Brown <len.brown@intel.com>2005-07-30 00:51:39 -0400
commit0c9938cc75057c0fca1af55a55dcfc2842436695 (patch)
treed18e809bf9e3811f20c609b6515d4d1b8520cfbc /drivers
parentdd8f39bbf5154cdbfd698fc70c66faba33eafa44 (diff)
[ACPI] ACPICA 20050729 from Bob Moore
Implemented support to ignore an attempt to install/load a particular ACPI table more than once. Apparently there exists BIOS code that repeatedly attempts to load the same SSDT upon certain events. Thanks to Venkatesh Pallipadi. Restructured the main interface to the AML parser in order to correctly handle all exceptional conditions. This will prevent leakage of the OwnerId resource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some machines. Thanks to Alexey Starikovskiy. Support for "module level code" has been disabled in this version due to a number of issues that have appeared on various machines. The support can be enabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem compilation. When the issues are fully resolved, the code will be enabled by default again. Modified the internal functions for debug print support to define the FunctionName parameter as a (const char *) for compatibility with compiler built-in macros such as __FUNCTION__, etc. Linted the entire ACPICA source tree for both 32-bit and 64-bit. Signed-off-by: Robert Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/acpi/dispatcher/dsinit.c24
-rw-r--r--drivers/acpi/dispatcher/dsmethod.c34
-rw-r--r--drivers/acpi/dispatcher/dswstate.c4
-rw-r--r--drivers/acpi/events/evmisc.c3
-rw-r--r--drivers/acpi/executer/exconfig.c19
-rw-r--r--drivers/acpi/executer/exdump.c2
-rw-r--r--drivers/acpi/executer/exoparg1.c2
-rw-r--r--drivers/acpi/namespace/nsaccess.c13
-rw-r--r--drivers/acpi/namespace/nsalloc.c121
-rw-r--r--drivers/acpi/namespace/nsdump.c11
-rw-r--r--drivers/acpi/namespace/nseval.c10
-rw-r--r--drivers/acpi/namespace/nsload.c42
-rw-r--r--drivers/acpi/namespace/nsparse.c2
-rw-r--r--drivers/acpi/parser/psloop.c9
-rw-r--r--drivers/acpi/parser/psutils.c4
-rw-r--r--drivers/acpi/parser/psxface.c242
-rw-r--r--drivers/acpi/tables/tbinstal.c22
-rw-r--r--drivers/acpi/tables/tbutils.c67
-rw-r--r--drivers/acpi/tables/tbxface.c14
-rw-r--r--drivers/acpi/tables/tbxfroot.c4
-rw-r--r--drivers/acpi/utilities/utalloc.c4
-rw-r--r--drivers/acpi/utilities/utdebug.c77
-rw-r--r--drivers/acpi/utilities/utmisc.c58
23 files changed, 426 insertions, 362 deletions
diff --git a/drivers/acpi/dispatcher/dsinit.c b/drivers/acpi/dispatcher/dsinit.c
index ebc07aab710c..bcd1d472b90f 100644
--- a/drivers/acpi/dispatcher/dsinit.c
+++ b/drivers/acpi/dispatcher/dsinit.c
@@ -86,20 +86,20 @@ acpi_ds_init_one_object (
86 void *context, 86 void *context,
87 void **return_value) 87 void **return_value)
88{ 88{
89 struct acpi_init_walk_info *info = (struct acpi_init_walk_info *) context;
90 struct acpi_namespace_node *node = (struct acpi_namespace_node *) obj_handle;
89 acpi_object_type type; 91 acpi_object_type type;
90 acpi_status status; 92 acpi_status status;
91 struct acpi_init_walk_info *info = (struct acpi_init_walk_info *) context;
92 93
93 94
94 ACPI_FUNCTION_NAME ("ds_init_one_object"); 95 ACPI_FUNCTION_NAME ("ds_init_one_object");
95 96
96 97
97 /* 98 /*
98 * We are only interested in objects owned by the table that 99 * We are only interested in NS nodes owned by the table that
99 * was just loaded 100 * was just loaded
100 */ 101 */
101 if (((struct acpi_namespace_node *) obj_handle)->owner_id != 102 if (node->owner_id != info->table_desc->owner_id) {
102 info->table_desc->owner_id) {
103 return (AE_OK); 103 return (AE_OK);
104 } 104 }
105 105
@@ -126,8 +126,6 @@ acpi_ds_init_one_object (
126 126
127 case ACPI_TYPE_METHOD: 127 case ACPI_TYPE_METHOD:
128 128
129 info->method_count++;
130
131 /* 129 /*
132 * Print a dot for each method unless we are going to print 130 * Print a dot for each method unless we are going to print
133 * the entire pathname 131 * the entire pathname
@@ -143,7 +141,7 @@ acpi_ds_init_one_object (
143 * on a per-table basis. Currently, we just use a global for the width. 141 * on a per-table basis. Currently, we just use a global for the width.
144 */ 142 */
145 if (info->table_desc->pointer->revision == 1) { 143 if (info->table_desc->pointer->revision == 1) {
146 ((struct acpi_namespace_node *) obj_handle)->flags |= ANOBJ_DATA_WIDTH_32; 144 node->flags |= ANOBJ_DATA_WIDTH_32;
147 } 145 }
148 146
149 /* 147 /*
@@ -153,22 +151,14 @@ acpi_ds_init_one_object (
153 status = acpi_ds_parse_method (obj_handle); 151 status = acpi_ds_parse_method (obj_handle);
154 if (ACPI_FAILURE (status)) { 152 if (ACPI_FAILURE (status)) {
155 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, 153 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
156 "Method %p [%4.4s] - parse failure, %s\n", 154 "\n+Method %p [%4.4s] - parse failure, %s\n",
157 obj_handle, acpi_ut_get_node_name (obj_handle), 155 obj_handle, acpi_ut_get_node_name (obj_handle),
158 acpi_format_exception (status))); 156 acpi_format_exception (status)));
159 157
160 /* This parse failed, but we will continue parsing more methods */ 158 /* This parse failed, but we will continue parsing more methods */
161
162 break;
163 } 159 }
164 160
165 /* 161 info->method_count++;
166 * Delete the parse tree. We simply re-parse the method
167 * for every execution since there isn't much overhead
168 */
169 acpi_ns_delete_namespace_subtree (obj_handle);
170 acpi_ns_delete_namespace_by_owner (
171 ((struct acpi_namespace_node *) obj_handle)->object->method.owner_id);
172 break; 162 break;
173 163
174 164
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index 1b90813cbde1..e344c06ed33f 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -58,12 +58,11 @@
58 * 58 *
59 * FUNCTION: acpi_ds_parse_method 59 * FUNCTION: acpi_ds_parse_method
60 * 60 *
61 * PARAMETERS: obj_handle - Method node 61 * PARAMETERS: Node - Method node
62 * 62 *
63 * RETURN: Status 63 * RETURN: Status
64 * 64 *
65 * DESCRIPTION: Call the parser and parse the AML that is associated with the 65 * DESCRIPTION: Parse the AML that is associated with the method.
66 * method.
67 * 66 *
68 * MUTEX: Assumes parser is locked 67 * MUTEX: Assumes parser is locked
69 * 68 *
@@ -71,30 +70,28 @@
71 70
72acpi_status 71acpi_status
73acpi_ds_parse_method ( 72acpi_ds_parse_method (
74 acpi_handle obj_handle) 73 struct acpi_namespace_node *node)
75{ 74{
76 acpi_status status; 75 acpi_status status;
77 union acpi_operand_object *obj_desc; 76 union acpi_operand_object *obj_desc;
78 union acpi_parse_object *op; 77 union acpi_parse_object *op;
79 struct acpi_namespace_node *node;
80 struct acpi_walk_state *walk_state; 78 struct acpi_walk_state *walk_state;
81 79
82 80
83 ACPI_FUNCTION_TRACE_PTR ("ds_parse_method", obj_handle); 81 ACPI_FUNCTION_TRACE_PTR ("ds_parse_method", node);
84 82
85 83
86 /* Parameter Validation */ 84 /* Parameter Validation */
87 85
88 if (!obj_handle) { 86 if (!node) {
89 return_ACPI_STATUS (AE_NULL_ENTRY); 87 return_ACPI_STATUS (AE_NULL_ENTRY);
90 } 88 }
91 89
92 ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** Parsing [%4.4s] **** named_obj=%p\n", 90 ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "**** Parsing [%4.4s] **** named_obj=%p\n",
93 acpi_ut_get_node_name (obj_handle), obj_handle)); 91 acpi_ut_get_node_name (node), node));
94 92
95 /* Extract the method object from the method Node */ 93 /* Extract the method object from the method Node */
96 94
97 node = (struct acpi_namespace_node *) obj_handle;
98 obj_desc = acpi_ns_get_attached_object (node); 95 obj_desc = acpi_ns_get_attached_object (node);
99 if (!obj_desc) { 96 if (!obj_desc) {
100 return_ACPI_STATUS (AE_NULL_OBJECT); 97 return_ACPI_STATUS (AE_NULL_OBJECT);
@@ -169,10 +166,18 @@ acpi_ds_parse_method (
169 166
170 ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, 167 ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
171 "**** [%4.4s] Parsed **** named_obj=%p Op=%p\n", 168 "**** [%4.4s] Parsed **** named_obj=%p Op=%p\n",
172 acpi_ut_get_node_name (obj_handle), obj_handle, op)); 169 acpi_ut_get_node_name (node), node, op));
170
171 /*
172 * Delete the parse tree. We simply re-parse the method for every
173 * execution since there isn't much overhead (compared to keeping lots
174 * of parse trees around)
175 */
176 acpi_ns_delete_namespace_subtree (node);
177 acpi_ns_delete_namespace_by_owner (obj_desc->method.owner_id);
173 178
174cleanup2: 179cleanup2:
175 (void) acpi_ut_release_owner_id (obj_desc->method.owner_id); 180 acpi_ut_release_owner_id (&obj_desc->method.owner_id);
176 181
177cleanup: 182cleanup:
178 acpi_ps_delete_parse_tree (op); 183 acpi_ps_delete_parse_tree (op);
@@ -391,7 +396,7 @@ acpi_ds_call_control_method (
391 /* On error, we must delete the new walk state */ 396 /* On error, we must delete the new walk state */
392 397
393cleanup: 398cleanup:
394 (void) acpi_ut_release_owner_id (obj_desc->method.owner_id); 399 acpi_ut_release_owner_id (&obj_desc->method.owner_id);
395 if (next_walk_state && (next_walk_state->method_desc)) { 400 if (next_walk_state && (next_walk_state->method_desc)) {
396 /* Decrement the thread count on the method parse tree */ 401 /* Decrement the thread count on the method parse tree */
397 402
@@ -563,8 +568,7 @@ acpi_ds_terminate_control_method (
563 */ 568 */
564 if ((walk_state->method_desc->method.concurrency == 1) && 569 if ((walk_state->method_desc->method.concurrency == 1) &&
565 (!walk_state->method_desc->method.semaphore)) { 570 (!walk_state->method_desc->method.semaphore)) {
566 status = acpi_os_create_semaphore (1, 571 status = acpi_os_create_semaphore (1, 1,
567 1,
568 &walk_state->method_desc->method.semaphore); 572 &walk_state->method_desc->method.semaphore);
569 } 573 }
570 574
@@ -595,6 +599,8 @@ acpi_ds_terminate_control_method (
595 */ 599 */
596 acpi_ns_delete_namespace_by_owner (walk_state->method_desc->method.owner_id); 600 acpi_ns_delete_namespace_by_owner (walk_state->method_desc->method.owner_id);
597 status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE); 601 status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
602 acpi_ut_release_owner_id (&walk_state->method_desc->method.owner_id);
603
598 if (ACPI_FAILURE (status)) { 604 if (ACPI_FAILURE (status)) {
599 return_ACPI_STATUS (status); 605 return_ACPI_STATUS (status);
600 } 606 }
diff --git a/drivers/acpi/dispatcher/dswstate.c b/drivers/acpi/dispatcher/dswstate.c
index d360d8e89544..5621665991b5 100644
--- a/drivers/acpi/dispatcher/dswstate.c
+++ b/drivers/acpi/dispatcher/dswstate.c
@@ -744,7 +744,7 @@ acpi_ds_init_aml_walk (
744 u8 *aml_start, 744 u8 *aml_start,
745 u32 aml_length, 745 u32 aml_length,
746 struct acpi_parameter_info *info, 746 struct acpi_parameter_info *info,
747 u32 pass_number) 747 u8 pass_number)
748{ 748{
749 acpi_status status; 749 acpi_status status;
750 struct acpi_parse_state *parser_state = &walk_state->parser_state; 750 struct acpi_parse_state *parser_state = &walk_state->parser_state;
@@ -762,7 +762,7 @@ acpi_ds_init_aml_walk (
762 /* The next_op of the next_walk will be the beginning of the method */ 762 /* The next_op of the next_walk will be the beginning of the method */
763 763
764 walk_state->next_op = NULL; 764 walk_state->next_op = NULL;
765 walk_state->pass_number = (u8) pass_number; 765 walk_state->pass_number = pass_number;
766 766
767 if (info) { 767 if (info) {
768 if (info->parameter_type == ACPI_PARAM_GPE) { 768 if (info->parameter_type == ACPI_PARAM_GPE) {
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index 38d7ab8aef3a..3df3ada4b9e7 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -411,6 +411,9 @@ acpi_ev_init_global_lock_handler (
411 * with an error. 411 * with an error.
412 */ 412 */
413 if (status == AE_NO_HARDWARE_RESPONSE) { 413 if (status == AE_NO_HARDWARE_RESPONSE) {
414 ACPI_REPORT_ERROR ((
415 "No response from Global Lock hardware, disabling lock\n"));
416
414 acpi_gbl_global_lock_present = FALSE; 417 acpi_gbl_global_lock_present = FALSE;
415 status = AE_OK; 418 status = AE_OK;
416 } 419 }
diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c
index 76c6ebd0231f..d11e9ec827f1 100644
--- a/drivers/acpi/executer/exconfig.c
+++ b/drivers/acpi/executer/exconfig.c
@@ -99,6 +99,11 @@ acpi_ex_add_table (
99 return_ACPI_STATUS (AE_NO_MEMORY); 99 return_ACPI_STATUS (AE_NO_MEMORY);
100 } 100 }
101 101
102 /* Init the table handle */
103
104 obj_desc->reference.opcode = AML_LOAD_OP;
105 *ddb_handle = obj_desc;
106
102 /* Install the new table into the local data structures */ 107 /* Install the new table into the local data structures */
103 108
104 ACPI_MEMSET (&table_info, 0, sizeof (struct acpi_table_desc)); 109 ACPI_MEMSET (&table_info, 0, sizeof (struct acpi_table_desc));
@@ -109,7 +114,14 @@ acpi_ex_add_table (
109 table_info.allocation = ACPI_MEM_ALLOCATED; 114 table_info.allocation = ACPI_MEM_ALLOCATED;
110 115
111 status = acpi_tb_install_table (&table_info); 116 status = acpi_tb_install_table (&table_info);
117 obj_desc->reference.object = table_info.installed_desc;
118
112 if (ACPI_FAILURE (status)) { 119 if (ACPI_FAILURE (status)) {
120 if (status == AE_ALREADY_EXISTS) {
121 /* Table already exists, just return the handle */
122
123 return_ACPI_STATUS (AE_OK);
124 }
113 goto cleanup; 125 goto cleanup;
114 } 126 }
115 127
@@ -123,16 +135,12 @@ acpi_ex_add_table (
123 goto cleanup; 135 goto cleanup;
124 } 136 }
125 137
126 /* Init the table handle */
127
128 obj_desc->reference.opcode = AML_LOAD_OP;
129 obj_desc->reference.object = table_info.installed_desc;
130 *ddb_handle = obj_desc;
131 return_ACPI_STATUS (AE_OK); 138 return_ACPI_STATUS (AE_OK);
132 139
133 140
134cleanup: 141cleanup:
135 acpi_ut_remove_reference (obj_desc); 142 acpi_ut_remove_reference (obj_desc);
143 *ddb_handle = NULL;
136 return_ACPI_STATUS (status); 144 return_ACPI_STATUS (status);
137} 145}
138 146
@@ -488,6 +496,7 @@ acpi_ex_unload_table (
488 * (Offset contains the table_id) 496 * (Offset contains the table_id)
489 */ 497 */
490 acpi_ns_delete_namespace_by_owner (table_info->owner_id); 498 acpi_ns_delete_namespace_by_owner (table_info->owner_id);
499 acpi_ut_release_owner_id (&table_info->owner_id);
491 500
492 /* Delete the table itself */ 501 /* Delete the table itself */
493 502
diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c
index fd13cc3db018..4f98dceed39a 100644
--- a/drivers/acpi/executer/exdump.c
+++ b/drivers/acpi/executer/exdump.c
@@ -598,7 +598,7 @@ acpi_ex_dump_reference (
598 acpi_os_printf ("Could not convert name to pathname\n"); 598 acpi_os_printf ("Could not convert name to pathname\n");
599 } 599 }
600 else { 600 else {
601 acpi_os_printf ("%s\n", ret_buf.pointer); 601 acpi_os_printf ("%s\n", (char *) ret_buf.pointer);
602 ACPI_MEM_FREE (ret_buf.pointer); 602 ACPI_MEM_FREE (ret_buf.pointer);
603 } 603 }
604 } 604 }
diff --git a/drivers/acpi/executer/exoparg1.c b/drivers/acpi/executer/exoparg1.c
index c1ba8b48228e..48c30f800083 100644
--- a/drivers/acpi/executer/exoparg1.c
+++ b/drivers/acpi/executer/exoparg1.c
@@ -955,7 +955,7 @@ acpi_ex_opcode_1A_0T_1R (
955 */ 955 */
956 return_desc = *(operand[0]->reference.where); 956 return_desc = *(operand[0]->reference.where);
957 if (return_desc) { 957 if (return_desc) {
958 acpi_ut_add_reference (return_desc); 958 acpi_ut_add_reference (return_desc);
959 } 959 }
960 960
961 break; 961 break;
diff --git a/drivers/acpi/namespace/nsaccess.c b/drivers/acpi/namespace/nsaccess.c
index 0bda88d18685..7589e1fdf25a 100644
--- a/drivers/acpi/namespace/nsaccess.c
+++ b/drivers/acpi/namespace/nsaccess.c
@@ -159,19 +159,20 @@ acpi_ns_root_initialize (
159 obj_desc->method.param_count = (u8) ACPI_TO_INTEGER (val); 159 obj_desc->method.param_count = (u8) ACPI_TO_INTEGER (val);
160 obj_desc->common.flags |= AOPOBJ_DATA_VALID; 160 obj_desc->common.flags |= AOPOBJ_DATA_VALID;
161 161
162#if defined (ACPI_ASL_COMPILER) || defined (ACPI_DUMP_App) 162#if defined (ACPI_ASL_COMPILER)
163 163
164 /* 164 /* save the parameter count for the i_aSL compiler */
165 * i_aSL Compiler cheats by putting parameter count 165
166 * in the owner_iD (param_count max is 7) 166 new_node->value = obj_desc->method.param_count;
167 */
168 new_node->owner_id = obj_desc->method.param_count;
169#else 167#else
170 /* Mark this as a very SPECIAL method */ 168 /* Mark this as a very SPECIAL method */
171 169
172 obj_desc->method.method_flags = AML_METHOD_INTERNAL_ONLY; 170 obj_desc->method.method_flags = AML_METHOD_INTERNAL_ONLY;
171
172#ifndef ACPI_DUMP_APP
173 obj_desc->method.implementation = acpi_ut_osi_implementation; 173 obj_desc->method.implementation = acpi_ut_osi_implementation;
174#endif 174#endif
175#endif
175 break; 176 break;
176 177
177 case ACPI_TYPE_INTEGER: 178 case ACPI_TYPE_INTEGER:
diff --git a/drivers/acpi/namespace/nsalloc.c b/drivers/acpi/namespace/nsalloc.c
index edbf1db36b68..21d560decbf9 100644
--- a/drivers/acpi/namespace/nsalloc.c
+++ b/drivers/acpi/namespace/nsalloc.c
@@ -176,10 +176,9 @@ acpi_ns_delete_node (
176 * DESCRIPTION: Initialize a new namespace node and install it amongst 176 * DESCRIPTION: Initialize a new namespace node and install it amongst
177 * its peers. 177 * its peers.
178 * 178 *
179 * Note: Current namespace lookup is linear search. However, the 179 * Note: Current namespace lookup is linear search. This appears
180 * nodes are linked in alphabetical order to 1) put all reserved 180 * to be sufficient as namespace searches consume only a small
181 * names (start with underscore) first, and to 2) make a readable 181 * fraction of the execution time of the ACPI subsystem.
182 * namespace dump.
183 * 182 *
184 ******************************************************************************/ 183 ******************************************************************************/
185 184
@@ -192,10 +191,6 @@ acpi_ns_install_node (
192{ 191{
193 acpi_owner_id owner_id = 0; 192 acpi_owner_id owner_id = 0;
194 struct acpi_namespace_node *child_node; 193 struct acpi_namespace_node *child_node;
195#ifdef ACPI_ALPHABETIC_NAMESPACE
196
197 struct acpi_namespace_node *previous_child_node;
198#endif
199 194
200 195
201 ACPI_FUNCTION_TRACE ("ns_install_node"); 196 ACPI_FUNCTION_TRACE ("ns_install_node");
@@ -219,57 +214,6 @@ acpi_ns_install_node (
219 node->peer = parent_node; 214 node->peer = parent_node;
220 } 215 }
221 else { 216 else {
222#ifdef ACPI_ALPHABETIC_NAMESPACE
223 /*
224 * Walk the list whilst searching for the correct
225 * alphabetic placement.
226 */
227 previous_child_node = NULL;
228 while (acpi_ns_compare_names (acpi_ut_get_node_name (child_node),
229 acpi_ut_get_node_name (node)) < 0) {
230 if (child_node->flags & ANOBJ_END_OF_PEER_LIST) {
231 /* Last peer; Clear end-of-list flag */
232
233 child_node->flags &= ~ANOBJ_END_OF_PEER_LIST;
234
235 /* This node is the new peer to the child node */
236
237 child_node->peer = node;
238
239 /* This node is the new end-of-list */
240
241 node->flags |= ANOBJ_END_OF_PEER_LIST;
242 node->peer = parent_node;
243 break;
244 }
245
246 /* Get next peer */
247
248 previous_child_node = child_node;
249 child_node = child_node->peer;
250 }
251
252 /* Did the node get inserted at the end-of-list? */
253
254 if (!(node->flags & ANOBJ_END_OF_PEER_LIST)) {
255 /*
256 * Loop above terminated without reaching the end-of-list.
257 * Insert the new node at the current location
258 */
259 if (previous_child_node) {
260 /* Insert node alphabetically */
261
262 node->peer = child_node;
263 previous_child_node->peer = node;
264 }
265 else {
266 /* Insert node alphabetically at start of list */
267
268 node->peer = child_node;
269 parent_node->child = node;
270 }
271 }
272#else
273 while (!(child_node->flags & ANOBJ_END_OF_PEER_LIST)) { 217 while (!(child_node->flags & ANOBJ_END_OF_PEER_LIST)) {
274 child_node = child_node->peer; 218 child_node = child_node->peer;
275 } 219 }
@@ -279,9 +223,8 @@ acpi_ns_install_node (
279 /* Clear end-of-list flag */ 223 /* Clear end-of-list flag */
280 224
281 child_node->flags &= ~ANOBJ_END_OF_PEER_LIST; 225 child_node->flags &= ~ANOBJ_END_OF_PEER_LIST;
282 node->flags |= ANOBJ_END_OF_PEER_LIST; 226 node->flags |= ANOBJ_END_OF_PEER_LIST;
283 node->peer = parent_node; 227 node->peer = parent_node;
284#endif
285 } 228 }
286 229
287 /* Init the new entry */ 230 /* Init the new entry */
@@ -570,6 +513,10 @@ acpi_ns_delete_namespace_by_owner (
570 ACPI_FUNCTION_TRACE_U32 ("ns_delete_namespace_by_owner", owner_id); 513 ACPI_FUNCTION_TRACE_U32 ("ns_delete_namespace_by_owner", owner_id);
571 514
572 515
516 if (owner_id == 0) {
517 return_VOID;
518 }
519
573 parent_node = acpi_gbl_root_node; 520 parent_node = acpi_gbl_root_node;
574 child_node = NULL; 521 child_node = NULL;
575 deletion_node = NULL; 522 deletion_node = NULL;
@@ -635,59 +582,7 @@ acpi_ns_delete_namespace_by_owner (
635 } 582 }
636 } 583 }
637 584
638 (void) acpi_ut_release_owner_id (owner_id);
639 return_VOID; 585 return_VOID;
640} 586}
641 587
642 588
643#ifdef ACPI_ALPHABETIC_NAMESPACE
644/*******************************************************************************
645 *
646 * FUNCTION: acpi_ns_compare_names
647 *
648 * PARAMETERS: Name1 - First name to compare
649 * Name2 - Second name to compare
650 *
651 * RETURN: value from strncmp
652 *
653 * DESCRIPTION: Compare two ACPI names. Names that are prefixed with an
654 * underscore are forced to be alphabetically first.
655 *
656 ******************************************************************************/
657
658int
659acpi_ns_compare_names (
660 char *name1,
661 char *name2)
662{
663 char reversed_name1[ACPI_NAME_SIZE];
664 char reversed_name2[ACPI_NAME_SIZE];
665 u32 i;
666 u32 j;
667
668
669 /*
670 * Replace all instances of "underscore" with a value that is smaller so
671 * that all names that are prefixed with underscore(s) are alphabetically
672 * first.
673 *
674 * Reverse the name bytewise so we can just do a 32-bit compare instead
675 * of a strncmp.
676 */
677 for (i = 0, j= (ACPI_NAME_SIZE - 1); i < ACPI_NAME_SIZE; i++, j--) {
678 reversed_name1[j] = name1[i];
679 if (name1[i] == '_') {
680 reversed_name1[j] = '*';
681 }
682
683 reversed_name2[j] = name2[i];
684 if (name2[i] == '_') {
685 reversed_name2[j] = '*';
686 }
687 }
688
689 return (*(int *) reversed_name1 - *(int *) reversed_name2);
690}
691#endif
692
693
diff --git a/drivers/acpi/namespace/nsdump.c b/drivers/acpi/namespace/nsdump.c
index d86ccbc8a134..5d25add6b031 100644
--- a/drivers/acpi/namespace/nsdump.c
+++ b/drivers/acpi/namespace/nsdump.c
@@ -85,6 +85,9 @@ acpi_ns_print_pathname (
85 u32 num_segments, 85 u32 num_segments,
86 char *pathname) 86 char *pathname)
87{ 87{
88 acpi_native_uint i;
89
90
88 ACPI_FUNCTION_NAME ("ns_print_pathname"); 91 ACPI_FUNCTION_NAME ("ns_print_pathname");
89 92
90 93
@@ -97,9 +100,13 @@ acpi_ns_print_pathname (
97 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "[")); 100 ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "["));
98 101
99 while (num_segments) { 102 while (num_segments) {
100 acpi_os_printf ("%4.4s", pathname); 103 for (i = 0; i < 4; i++) {
101 pathname += ACPI_NAME_SIZE; 104 ACPI_IS_PRINT (pathname[i]) ?
105 acpi_os_printf ("%c", pathname[i]) :
106 acpi_os_printf ("?");
107 }
102 108
109 pathname += ACPI_NAME_SIZE;
103 num_segments--; 110 num_segments--;
104 if (num_segments) { 111 if (num_segments) {
105 acpi_os_printf ("."); 112 acpi_os_printf (".");
diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c
index 1ae89a1c8826..908cffd5e720 100644
--- a/drivers/acpi/namespace/nseval.c
+++ b/drivers/acpi/namespace/nseval.c
@@ -365,6 +365,7 @@ acpi_ns_evaluate_by_handle (
365 * 365 *
366 * PARAMETERS: Info - Method info block, contains: 366 * PARAMETERS: Info - Method info block, contains:
367 * Node - Method Node to execute 367 * Node - Method Node to execute
368 * obj_desc - Method object
368 * Parameters - List of parameters to pass to the method, 369 * Parameters - List of parameters to pass to the method,
369 * terminated by NULL. Params itself may be 370 * terminated by NULL. Params itself may be
370 * NULL if no parameters are being passed. 371 * NULL if no parameters are being passed.
@@ -387,7 +388,6 @@ acpi_ns_execute_control_method (
387 struct acpi_parameter_info *info) 388 struct acpi_parameter_info *info)
388{ 389{
389 acpi_status status; 390 acpi_status status;
390 union acpi_operand_object *obj_desc;
391 391
392 392
393 ACPI_FUNCTION_TRACE ("ns_execute_control_method"); 393 ACPI_FUNCTION_TRACE ("ns_execute_control_method");
@@ -395,8 +395,8 @@ acpi_ns_execute_control_method (
395 395
396 /* Verify that there is a method associated with this object */ 396 /* Verify that there is a method associated with this object */
397 397
398 obj_desc = acpi_ns_get_attached_object (info->node); 398 info->obj_desc = acpi_ns_get_attached_object (info->node);
399 if (!obj_desc) { 399 if (!info->obj_desc) {
400 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No attached method object\n")); 400 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No attached method object\n"));
401 401
402 (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE); 402 (void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
@@ -407,7 +407,7 @@ acpi_ns_execute_control_method (
407 ACPI_LV_INFO, _COMPONENT); 407 ACPI_LV_INFO, _COMPONENT);
408 408
409 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Method at AML address %p Length %X\n", 409 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Method at AML address %p Length %X\n",
410 obj_desc->method.aml_start + 1, obj_desc->method.aml_length - 1)); 410 info->obj_desc->method.aml_start + 1, info->obj_desc->method.aml_length - 1));
411 411
412 /* 412 /*
413 * Unlock the namespace before execution. This allows namespace access 413 * Unlock the namespace before execution. This allows namespace access
@@ -430,7 +430,7 @@ acpi_ns_execute_control_method (
430 return_ACPI_STATUS (status); 430 return_ACPI_STATUS (status);
431 } 431 }
432 432
433 status = acpi_psx_execute (info); 433 status = acpi_ps_execute_method (info);
434 acpi_ex_exit_interpreter (); 434 acpi_ex_exit_interpreter ();
435 435
436 return_ACPI_STATUS (status); 436 return_ACPI_STATUS (status);
diff --git a/drivers/acpi/namespace/nsload.c b/drivers/acpi/namespace/nsload.c
index 34e497016601..1428a84a31e6 100644
--- a/drivers/acpi/namespace/nsload.c
+++ b/drivers/acpi/namespace/nsload.c
@@ -198,7 +198,7 @@ acpi_ns_load_table_by_type (
198 switch (table_type) { 198 switch (table_type) {
199 case ACPI_TABLE_DSDT: 199 case ACPI_TABLE_DSDT:
200 200
201 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Loading DSDT\n")); 201 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Namespace load: DSDT\n"));
202 202
203 table_desc = acpi_gbl_table_lists[ACPI_TABLE_DSDT].next; 203 table_desc = acpi_gbl_table_lists[ACPI_TABLE_DSDT].next;
204 204
@@ -218,17 +218,18 @@ acpi_ns_load_table_by_type (
218 218
219 219
220 case ACPI_TABLE_SSDT: 220 case ACPI_TABLE_SSDT:
221 case ACPI_TABLE_PSDT:
221 222
222 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Loading %d SSDTs\n", 223 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Namespace load: %d SSDT or PSDTs\n",
223 acpi_gbl_table_lists[ACPI_TABLE_SSDT].count)); 224 acpi_gbl_table_lists[table_type].count));
224 225
225 /* 226 /*
226 * Traverse list of SSDT tables 227 * Traverse list of SSDT or PSDT tables
227 */ 228 */
228 table_desc = acpi_gbl_table_lists[ACPI_TABLE_SSDT].next; 229 table_desc = acpi_gbl_table_lists[table_type].next;
229 for (i = 0; i < acpi_gbl_table_lists[ACPI_TABLE_SSDT].count; i++) { 230 for (i = 0; i < acpi_gbl_table_lists[table_type].count; i++) {
230 /* 231 /*
231 * Only attempt to load table if it is not 232 * Only attempt to load table into namespace if it is not
232 * already loaded! 233 * already loaded!
233 */ 234 */
234 if (!table_desc->loaded_into_namespace) { 235 if (!table_desc->loaded_into_namespace) {
@@ -245,33 +246,6 @@ acpi_ns_load_table_by_type (
245 break; 246 break;
246 247
247 248
248 case ACPI_TABLE_PSDT:
249
250 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Loading %d PSDTs\n",
251 acpi_gbl_table_lists[ACPI_TABLE_PSDT].count));
252
253 /*
254 * Traverse list of PSDT tables
255 */
256 table_desc = acpi_gbl_table_lists[ACPI_TABLE_PSDT].next;
257
258 for (i = 0; i < acpi_gbl_table_lists[ACPI_TABLE_PSDT].count; i++) {
259 /* Only attempt to load table if it is not already loaded! */
260
261 if (!table_desc->loaded_into_namespace) {
262 status = acpi_ns_load_table (table_desc, acpi_gbl_root_node);
263 if (ACPI_FAILURE (status)) {
264 break;
265 }
266
267 table_desc->loaded_into_namespace = TRUE;
268 }
269
270 table_desc = table_desc->next;
271 }
272 break;
273
274
275 default: 249 default:
276 status = AE_SUPPORT; 250 status = AE_SUPPORT;
277 break; 251 break;
diff --git a/drivers/acpi/namespace/nsparse.c b/drivers/acpi/namespace/nsparse.c
index 64e0b2b9f55c..24bed931d39d 100644
--- a/drivers/acpi/namespace/nsparse.c
+++ b/drivers/acpi/namespace/nsparse.c
@@ -67,7 +67,7 @@
67 67
68acpi_status 68acpi_status
69acpi_ns_one_complete_parse ( 69acpi_ns_one_complete_parse (
70 u32 pass_number, 70 u8 pass_number,
71 struct acpi_table_desc *table_desc) 71 struct acpi_table_desc *table_desc)
72{ 72{
73 union acpi_parse_object *parse_root; 73 union acpi_parse_object *parse_root;
diff --git a/drivers/acpi/parser/psloop.c b/drivers/acpi/parser/psloop.c
index edf8aa5f86ca..551d54bdbec3 100644
--- a/drivers/acpi/parser/psloop.c
+++ b/drivers/acpi/parser/psloop.c
@@ -55,8 +55,6 @@
55#include <acpi/acparser.h> 55#include <acpi/acparser.h>
56#include <acpi/acdispat.h> 56#include <acpi/acdispat.h>
57#include <acpi/amlcode.h> 57#include <acpi/amlcode.h>
58#include <acpi/acnamesp.h>
59#include <acpi/acinterp.h>
60 58
61#define _COMPONENT ACPI_PARSER 59#define _COMPONENT ACPI_PARSER
62 ACPI_MODULE_NAME ("psloop") 60 ACPI_MODULE_NAME ("psloop")
@@ -410,11 +408,9 @@ acpi_ps_parse_loop (
410 408
411 /* Special processing for certain opcodes */ 409 /* Special processing for certain opcodes */
412 410
413#define ACPI_NO_MODULE_LEVEL_CODE
414
415 /* TBD (remove): Temporary mechanism to disable this code if needed */ 411 /* TBD (remove): Temporary mechanism to disable this code if needed */
416 412
417#ifndef ACPI_NO_MODULE_LEVEL_CODE 413#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE
418 414
419 if ((walk_state->pass_number <= ACPI_IMODE_LOAD_PASS1) && 415 if ((walk_state->pass_number <= ACPI_IMODE_LOAD_PASS1) &&
420 ((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE) == 0)) { 416 ((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE) == 0)) {
@@ -431,6 +427,9 @@ acpi_ps_parse_loop (
431 case AML_ELSE_OP: 427 case AML_ELSE_OP:
432 case AML_WHILE_OP: 428 case AML_WHILE_OP:
433 429
430 ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
431 "Pass1: Skipping an If/Else/While body\n"));
432
434 /* Skip body of if/else/while in pass 1 */ 433 /* Skip body of if/else/while in pass 1 */
435 434
436 parser_state->aml = parser_state->pkg_end; 435 parser_state->aml = parser_state->pkg_end;
diff --git a/drivers/acpi/parser/psutils.c b/drivers/acpi/parser/psutils.c
index 19a27020eeef..4221b41ae1a6 100644
--- a/drivers/acpi/parser/psutils.c
+++ b/drivers/acpi/parser/psutils.c
@@ -200,10 +200,10 @@ acpi_ps_free_op (
200 } 200 }
201 201
202 if (op->common.flags & ACPI_PARSEOP_GENERIC) { 202 if (op->common.flags & ACPI_PARSEOP_GENERIC) {
203 acpi_os_release_object (acpi_gbl_ps_node_cache, op); 203 (void) acpi_os_release_object (acpi_gbl_ps_node_cache, op);
204 } 204 }
205 else { 205 else {
206 acpi_os_release_object (acpi_gbl_ps_node_ext_cache, op); 206 (void) acpi_os_release_object (acpi_gbl_ps_node_ext_cache, op);
207 } 207 }
208} 208}
209 209
diff --git a/drivers/acpi/parser/psxface.c b/drivers/acpi/parser/psxface.c
index 5279b51e7787..d1541fabaf0a 100644
--- a/drivers/acpi/parser/psxface.c
+++ b/drivers/acpi/parser/psxface.c
@@ -46,19 +46,30 @@
46#include <acpi/acparser.h> 46#include <acpi/acparser.h>
47#include <acpi/acdispat.h> 47#include <acpi/acdispat.h>
48#include <acpi/acinterp.h> 48#include <acpi/acinterp.h>
49#include <acpi/acnamesp.h>
50 49
51 50
52#define _COMPONENT ACPI_PARSER 51#define _COMPONENT ACPI_PARSER
53 ACPI_MODULE_NAME ("psxface") 52 ACPI_MODULE_NAME ("psxface")
54 53
54/* Local Prototypes */
55
56static acpi_status
57acpi_ps_execute_pass (
58 struct acpi_parameter_info *info);
59
60static void
61acpi_ps_update_parameter_list (
62 struct acpi_parameter_info *info,
63 u16 action);
64
55 65
56/******************************************************************************* 66/*******************************************************************************
57 * 67 *
58 * FUNCTION: acpi_psx_execute 68 * FUNCTION: acpi_ps_execute_method
59 * 69 *
60 * PARAMETERS: Info - Method info block, contains: 70 * PARAMETERS: Info - Method info block, contains:
61 * Node - Method Node to execute 71 * Node - Method Node to execute
72 * obj_desc - Method object
62 * Parameters - List of parameters to pass to the method, 73 * Parameters - List of parameters to pass to the method,
63 * terminated by NULL. Params itself may be 74 * terminated by NULL. Params itself may be
64 * NULL if no parameters are being passed. 75 * NULL if no parameters are being passed.
@@ -67,6 +78,7 @@
67 * parameter_type - Type of Parameter list 78 * parameter_type - Type of Parameter list
68 * return_object - Where to put method's return value (if 79 * return_object - Where to put method's return value (if
69 * any). If NULL, no value is returned. 80 * any). If NULL, no value is returned.
81 * pass_number - Parse or execute pass
70 * 82 *
71 * RETURN: Status 83 * RETURN: Status
72 * 84 *
@@ -75,174 +87,194 @@
75 ******************************************************************************/ 87 ******************************************************************************/
76 88
77acpi_status 89acpi_status
78acpi_psx_execute ( 90acpi_ps_execute_method (
79 struct acpi_parameter_info *info) 91 struct acpi_parameter_info *info)
80{ 92{
81 acpi_status status; 93 acpi_status status;
82 union acpi_operand_object *obj_desc;
83 u32 i;
84 union acpi_parse_object *op;
85 struct acpi_walk_state *walk_state;
86 94
87 95
88 ACPI_FUNCTION_TRACE ("psx_execute"); 96 ACPI_FUNCTION_TRACE ("ps_execute_method");
89 97
90 98
91 /* Validate the Node and get the attached object */ 99 /* Validate the Info and method Node */
92 100
93 if (!info || !info->node) { 101 if (!info || !info->node) {
94 return_ACPI_STATUS (AE_NULL_ENTRY); 102 return_ACPI_STATUS (AE_NULL_ENTRY);
95 } 103 }
96 104
97 obj_desc = acpi_ns_get_attached_object (info->node);
98 if (!obj_desc) {
99 return_ACPI_STATUS (AE_NULL_OBJECT);
100 }
101
102 /* Init for new method, wait on concurrency semaphore */ 105 /* Init for new method, wait on concurrency semaphore */
103 106
104 status = acpi_ds_begin_method_execution (info->node, obj_desc, NULL); 107 status = acpi_ds_begin_method_execution (info->node, info->obj_desc, NULL);
105 if (ACPI_FAILURE (status)) { 108 if (ACPI_FAILURE (status)) {
106 return_ACPI_STATUS (status); 109 return_ACPI_STATUS (status);
107 } 110 }
108 111
109 if ((info->parameter_type == ACPI_PARAM_ARGS) &&
110 (info->parameters)) {
111 /*
112 * The caller "owns" the parameters, so give each one an extra
113 * reference
114 */
115 for (i = 0; info->parameters[i]; i++) {
116 acpi_ut_add_reference (info->parameters[i]);
117 }
118 }
119
120 /*
121 * 1) Perform the first pass parse of the method to enter any
122 * named objects that it creates into the namespace
123 */
124 ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
125 "**** Begin Method Parse **** Entry=%p obj=%p\n",
126 info->node, obj_desc));
127
128 /* Create and init a Root Node */
129
130 op = acpi_ps_create_scope_op ();
131 if (!op) {
132 status = AE_NO_MEMORY;
133 goto cleanup1;
134 }
135
136 /* 112 /*
137 * Get a new owner_id for objects created by this method. Namespace 113 * Get a new owner_id for objects created by this method. Namespace
138 * objects (such as Operation Regions) can be created during the 114 * objects (such as Operation Regions) can be created during the
139 * first pass parse. 115 * first pass parse.
140 */ 116 */
141 status = acpi_ut_allocate_owner_id (&obj_desc->method.owner_id); 117 status = acpi_ut_allocate_owner_id (&info->obj_desc->method.owner_id);
142 if (ACPI_FAILURE (status)) { 118 if (ACPI_FAILURE (status)) {
143 goto cleanup2; 119 return_ACPI_STATUS (status);
144 }
145
146 /* Create and initialize a new walk state */
147
148 walk_state = acpi_ds_create_walk_state (obj_desc->method.owner_id,
149 NULL, NULL, NULL);
150 if (!walk_state) {
151 status = AE_NO_MEMORY;
152 goto cleanup2;
153 } 120 }
154 121
155 status = acpi_ds_init_aml_walk (walk_state, op, info->node, 122 /*
156 obj_desc->method.aml_start, 123 * The caller "owns" the parameters, so give each one an extra
157 obj_desc->method.aml_length, NULL, 1); 124 * reference
158 if (ACPI_FAILURE (status)) { 125 */
159 goto cleanup3; 126 acpi_ps_update_parameter_list (info, REF_INCREMENT);
160 }
161 127
162 /* Parse the AML */ 128 /*
129 * 1) Perform the first pass parse of the method to enter any
130 * named objects that it creates into the namespace
131 */
132 ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
133 "**** Begin Method Parse **** Entry=%p obj=%p\n",
134 info->node, info->obj_desc));
163 135
164 status = acpi_ps_parse_aml (walk_state); 136 info->pass_number = 1;
165 acpi_ps_delete_parse_tree (op); 137 status = acpi_ps_execute_pass (info);
166 if (ACPI_FAILURE (status)) { 138 if (ACPI_FAILURE (status)) {
167 goto cleanup1; /* Walk state is already deleted */ 139 goto cleanup;
168 } 140 }
169 141
170 /* 142 /*
171 * 2) Execute the method. Performs second pass parse simultaneously 143 * 2) Execute the method. Performs second pass parse simultaneously
172 */ 144 */
173 ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, 145 ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
174 "**** Begin Method Execution **** Entry=%p obj=%p\n", 146 "**** Begin Method Execution **** Entry=%p obj=%p\n",
175 info->node, obj_desc)); 147 info->node, info->obj_desc));
176 148
177 /* Create and init a Root Node */ 149 info->pass_number = 3;
150 status = acpi_ps_execute_pass (info);
178 151
179 op = acpi_ps_create_scope_op (); 152
180 if (!op) { 153cleanup:
181 status = AE_NO_MEMORY; 154 if (info->obj_desc->method.owner_id) {
182 goto cleanup1; 155 acpi_ut_release_owner_id (&info->obj_desc->method.owner_id);
183 } 156 }
184 157
185 /* Init new op with the method name and pointer back to the NS node */ 158 /* Take away the extra reference that we gave the parameters above */
186 159
187 acpi_ps_set_name (op, info->node->name.integer); 160 acpi_ps_update_parameter_list (info, REF_DECREMENT);
188 op->common.node = info->node;
189 161
190 /* Create and initialize a new walk state */ 162 /* Exit now if error above */
191 163
192 walk_state = acpi_ds_create_walk_state (0, NULL, NULL, NULL); 164 if (ACPI_FAILURE (status)) {
193 if (!walk_state) { 165 return_ACPI_STATUS (status);
194 status = AE_NO_MEMORY;
195 goto cleanup2;
196 } 166 }
197 167
198 status = acpi_ds_init_aml_walk (walk_state, op, info->node, 168 /*
199 obj_desc->method.aml_start, 169 * If the method has returned an object, signal this to the caller with
200 obj_desc->method.aml_length, info, 3); 170 * a control exception code
201 if (ACPI_FAILURE (status)) { 171 */
202 goto cleanup3; 172 if (info->return_object) {
173 ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Method returned obj_desc=%p\n",
174 info->return_object));
175 ACPI_DUMP_STACK_ENTRY (info->return_object);
176
177 status = AE_CTRL_RETURN_VALUE;
203 } 178 }
204 179
205 /* The walk of the parse tree is where we actually execute the method */ 180 return_ACPI_STATUS (status);
181}
206 182
207 status = acpi_ps_parse_aml (walk_state);
208 goto cleanup2; /* Walk state already deleted */
209 183
184/*******************************************************************************
185 *
186 * FUNCTION: acpi_ps_update_parameter_list
187 *
188 * PARAMETERS: Info - See struct acpi_parameter_info
189 * (Used: parameter_type and Parameters)
190 * Action - Add or Remove reference
191 *
192 * RETURN: Status
193 *
194 * DESCRIPTION: Update reference count on all method parameter objects
195 *
196 ******************************************************************************/
210 197
211cleanup3: 198static void
212 acpi_ds_delete_walk_state (walk_state); 199acpi_ps_update_parameter_list (
200 struct acpi_parameter_info *info,
201 u16 action)
202{
203 acpi_native_uint i;
213 204
214cleanup2:
215 acpi_ps_delete_parse_tree (op);
216 205
217cleanup1:
218 if ((info->parameter_type == ACPI_PARAM_ARGS) && 206 if ((info->parameter_type == ACPI_PARAM_ARGS) &&
219 (info->parameters)) { 207 (info->parameters)) {
220 /* Take away the extra reference that we gave the parameters above */ 208 /* Update reference count for each parameter */
221 209
222 for (i = 0; info->parameters[i]; i++) { 210 for (i = 0; info->parameters[i]; i++) {
223 /* Ignore errors, just do them all */ 211 /* Ignore errors, just do them all */
224 212
225 (void) acpi_ut_update_object_reference ( 213 (void) acpi_ut_update_object_reference (info->parameters[i], action);
226 info->parameters[i], REF_DECREMENT);
227 } 214 }
228 } 215 }
216}
229 217
230 if (ACPI_FAILURE (status)) { 218
231 return_ACPI_STATUS (status); 219/*******************************************************************************
220 *
221 * FUNCTION: acpi_ps_execute_pass
222 *
223 * PARAMETERS: Info - See struct acpi_parameter_info
224 * (Used: pass_number, Node, and obj_desc)
225 *
226 * RETURN: Status
227 *
228 * DESCRIPTION: Single AML pass: Parse or Execute a control method
229 *
230 ******************************************************************************/
231
232static acpi_status
233acpi_ps_execute_pass (
234 struct acpi_parameter_info *info)
235{
236 acpi_status status;
237 union acpi_parse_object *op;
238 struct acpi_walk_state *walk_state;
239
240
241 ACPI_FUNCTION_TRACE ("ps_execute_pass");
242
243
244 /* Create and init a Root Node */
245
246 op = acpi_ps_create_scope_op ();
247 if (!op) {
248 return_ACPI_STATUS (AE_NO_MEMORY);
232 } 249 }
233 250
234 /* 251 /* Create and initialize a new walk state */
235 * If the method has returned an object, signal this to the caller with
236 * a control exception code
237 */
238 if (info->return_object) {
239 ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "Method returned obj_desc=%p\n",
240 info->return_object));
241 ACPI_DUMP_STACK_ENTRY (info->return_object);
242 252
243 status = AE_CTRL_RETURN_VALUE; 253 walk_state = acpi_ds_create_walk_state (
254 info->obj_desc->method.owner_id, NULL, NULL, NULL);
255 if (!walk_state) {
256 status = AE_NO_MEMORY;
257 goto cleanup;
258 }
259
260 status = acpi_ds_init_aml_walk (walk_state, op, info->node,
261 info->obj_desc->method.aml_start,
262 info->obj_desc->method.aml_length,
263 info->pass_number == 1 ? NULL : info,
264 info->pass_number);
265 if (ACPI_FAILURE (status)) {
266 acpi_ds_delete_walk_state (walk_state);
267 goto cleanup;
244 } 268 }
245 269
270 /* Parse the AML */
271
272 status = acpi_ps_parse_aml (walk_state);
273
274 /* Walk state was deleted by parse_aml */
275
276cleanup:
277 acpi_ps_delete_parse_tree (op);
246 return_ACPI_STATUS (status); 278 return_ACPI_STATUS (status);
247} 279}
248 280
diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c
index 2ad72f204551..698799901f55 100644
--- a/drivers/acpi/tables/tbinstal.c
+++ b/drivers/acpi/tables/tbinstal.c
@@ -124,9 +124,7 @@ acpi_tb_match_signature (
124 * 124 *
125 * RETURN: Status 125 * RETURN: Status
126 * 126 *
127 * DESCRIPTION: Load and validate all tables other than the RSDT. The RSDT must 127 * DESCRIPTION: Install the table into the global data structures.
128 * already be loaded and validated.
129 * Install the table into the global data structs.
130 * 128 *
131 ******************************************************************************/ 129 ******************************************************************************/
132 130
@@ -136,6 +134,7 @@ acpi_tb_install_table (
136{ 134{
137 acpi_status status; 135 acpi_status status;
138 136
137
139 ACPI_FUNCTION_TRACE ("tb_install_table"); 138 ACPI_FUNCTION_TRACE ("tb_install_table");
140 139
141 140
@@ -143,22 +142,33 @@ acpi_tb_install_table (
143 142
144 status = acpi_ut_acquire_mutex (ACPI_MTX_TABLES); 143 status = acpi_ut_acquire_mutex (ACPI_MTX_TABLES);
145 if (ACPI_FAILURE (status)) { 144 if (ACPI_FAILURE (status)) {
146 ACPI_REPORT_ERROR (("Could not acquire table mutex for [%4.4s], %s\n", 145 ACPI_REPORT_ERROR (("Could not acquire table mutex, %s\n",
147 table_info->pointer->signature, acpi_format_exception (status))); 146 acpi_format_exception (status)));
148 return_ACPI_STATUS (status); 147 return_ACPI_STATUS (status);
149 } 148 }
150 149
150 /*
151 * Ignore a table that is already installed. For example, some BIOS
152 * ASL code will repeatedly attempt to load the same SSDT.
153 */
154 status = acpi_tb_is_table_installed (table_info);
155 if (ACPI_FAILURE (status)) {
156 goto unlock_and_exit;
157 }
158
151 /* Install the table into the global data structure */ 159 /* Install the table into the global data structure */
152 160
153 status = acpi_tb_init_table_descriptor (table_info->type, table_info); 161 status = acpi_tb_init_table_descriptor (table_info->type, table_info);
154 if (ACPI_FAILURE (status)) { 162 if (ACPI_FAILURE (status)) {
155 ACPI_REPORT_ERROR (("Could not install ACPI table [%4.4s], %s\n", 163 ACPI_REPORT_ERROR (("Could not install table [%4.4s], %s\n",
156 table_info->pointer->signature, acpi_format_exception (status))); 164 table_info->pointer->signature, acpi_format_exception (status)));
157 } 165 }
158 166
159 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "%s located at %p\n", 167 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "%s located at %p\n",
160 acpi_gbl_table_data[table_info->type].name, table_info->pointer)); 168 acpi_gbl_table_data[table_info->type].name, table_info->pointer));
161 169
170
171unlock_and_exit:
162 (void) acpi_ut_release_mutex (ACPI_MTX_TABLES); 172 (void) acpi_ut_release_mutex (ACPI_MTX_TABLES);
163 return_ACPI_STATUS (status); 173 return_ACPI_STATUS (status);
164} 174}
diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c
index e69d01d443d2..6fc1e36e6042 100644
--- a/drivers/acpi/tables/tbutils.c
+++ b/drivers/acpi/tables/tbutils.c
@@ -61,6 +61,67 @@ acpi_tb_handle_to_object (
61 61
62/******************************************************************************* 62/*******************************************************************************
63 * 63 *
64 * FUNCTION: acpi_tb_is_table_installed
65 *
66 * PARAMETERS: new_table_desc - Descriptor for new table being installed
67 *
68 * RETURN: Status - AE_ALREADY_EXISTS if the table is already installed
69 *
70 * DESCRIPTION: Determine if an ACPI table is already installed
71 *
72 * MUTEX: Table data structures should be locked
73 *
74 ******************************************************************************/
75
76acpi_status
77acpi_tb_is_table_installed (
78 struct acpi_table_desc *new_table_desc)
79{
80 struct acpi_table_desc *table_desc;
81
82
83 ACPI_FUNCTION_TRACE ("tb_is_table_installed");
84
85
86 /* Get the list descriptor and first table descriptor */
87
88 table_desc = acpi_gbl_table_lists[new_table_desc->type].next;
89
90 /* Examine all installed tables of this type */
91
92 while (table_desc) {
93 /* Compare Revision and oem_table_id */
94
95 if ((table_desc->loaded_into_namespace) &&
96 (table_desc->pointer->revision ==
97 new_table_desc->pointer->revision) &&
98 (!ACPI_MEMCMP (table_desc->pointer->oem_table_id,
99 new_table_desc->pointer->oem_table_id, 8))) {
100 /* This table is already installed */
101
102 ACPI_DEBUG_PRINT ((ACPI_DB_TABLES,
103 "Table [%4.4s] already installed: Rev %X oem_table_id [%8.8s]\n",
104 new_table_desc->pointer->signature,
105 new_table_desc->pointer->revision,
106 new_table_desc->pointer->oem_table_id));
107
108 new_table_desc->owner_id = table_desc->owner_id;
109 new_table_desc->installed_desc = table_desc;
110
111 return_ACPI_STATUS (AE_ALREADY_EXISTS);
112 }
113
114 /* Get next table on the list */
115
116 table_desc = table_desc->next;
117 }
118
119 return_ACPI_STATUS (AE_OK);
120}
121
122
123/*******************************************************************************
124 *
64 * FUNCTION: acpi_tb_validate_table_header 125 * FUNCTION: acpi_tb_validate_table_header
65 * 126 *
66 * PARAMETERS: table_header - Logical pointer to the table 127 * PARAMETERS: table_header - Logical pointer to the table
@@ -157,7 +218,7 @@ acpi_tb_verify_table_checksum (
157 218
158 /* Compute the checksum on the table */ 219 /* Compute the checksum on the table */
159 220
160 checksum = acpi_tb_checksum (table_header, table_header->length); 221 checksum = acpi_tb_generate_checksum (table_header, table_header->length);
161 222
162 /* Return the appropriate exception */ 223 /* Return the appropriate exception */
163 224
@@ -175,7 +236,7 @@ acpi_tb_verify_table_checksum (
175 236
176/******************************************************************************* 237/*******************************************************************************
177 * 238 *
178 * FUNCTION: acpi_tb_checksum 239 * FUNCTION: acpi_tb_generate_checksum
179 * 240 *
180 * PARAMETERS: Buffer - Buffer to checksum 241 * PARAMETERS: Buffer - Buffer to checksum
181 * Length - Size of the buffer 242 * Length - Size of the buffer
@@ -187,7 +248,7 @@ acpi_tb_verify_table_checksum (
187 ******************************************************************************/ 248 ******************************************************************************/
188 249
189u8 250u8
190acpi_tb_checksum ( 251acpi_tb_generate_checksum (
191 void *buffer, 252 void *buffer,
192 u32 length) 253 u32 length)
193{ 254{
diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c
index ca2dbdd23ed3..e18a05d1b9b3 100644
--- a/drivers/acpi/tables/tbxface.c
+++ b/drivers/acpi/tables/tbxface.c
@@ -182,10 +182,23 @@ acpi_load_table (
182 return_ACPI_STATUS (status); 182 return_ACPI_STATUS (status);
183 } 183 }
184 184
185 /* Check signature for a valid table type */
186
187 status = acpi_tb_recognize_table (&table_info, ACPI_TABLE_ALL);
188 if (ACPI_FAILURE (status)) {
189 return_ACPI_STATUS (status);
190 }
191
185 /* Install the new table into the local data structures */ 192 /* Install the new table into the local data structures */
186 193
187 status = acpi_tb_install_table (&table_info); 194 status = acpi_tb_install_table (&table_info);
188 if (ACPI_FAILURE (status)) { 195 if (ACPI_FAILURE (status)) {
196 if (status == AE_ALREADY_EXISTS) {
197 /* Table already exists, no error */
198
199 status = AE_OK;
200 }
201
189 /* Free table allocated by acpi_tb_get_table_body */ 202 /* Free table allocated by acpi_tb_get_table_body */
190 203
191 acpi_tb_delete_single_table (&table_info); 204 acpi_tb_delete_single_table (&table_info);
@@ -261,6 +274,7 @@ acpi_unload_table (
261 * simply a position within the hierarchy 274 * simply a position within the hierarchy
262 */ 275 */
263 acpi_ns_delete_namespace_by_owner (table_desc->owner_id); 276 acpi_ns_delete_namespace_by_owner (table_desc->owner_id);
277 acpi_ut_release_owner_id (&table_desc->owner_id);
264 table_desc = table_desc->next; 278 table_desc = table_desc->next;
265 } 279 }
266 280
diff --git a/drivers/acpi/tables/tbxfroot.c b/drivers/acpi/tables/tbxfroot.c
index abb4c9346560..87dccdda9ae2 100644
--- a/drivers/acpi/tables/tbxfroot.c
+++ b/drivers/acpi/tables/tbxfroot.c
@@ -93,14 +93,14 @@ acpi_tb_validate_rsdp (
93 93
94 /* Check the standard checksum */ 94 /* Check the standard checksum */
95 95
96 if (acpi_tb_checksum (rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) { 96 if (acpi_tb_generate_checksum (rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) {
97 return (AE_BAD_CHECKSUM); 97 return (AE_BAD_CHECKSUM);
98 } 98 }
99 99
100 /* Check extended checksum if table version >= 2 */ 100 /* Check extended checksum if table version >= 2 */
101 101
102 if ((rsdp->revision >= 2) && 102 if ((rsdp->revision >= 2) &&
103 (acpi_tb_checksum (rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0)) { 103 (acpi_tb_generate_checksum (rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0)) {
104 return (AE_BAD_CHECKSUM); 104 return (AE_BAD_CHECKSUM);
105 } 105 }
106 106
diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c
index 5061c6f0ee66..78270f50e625 100644
--- a/drivers/acpi/utilities/utalloc.c
+++ b/drivers/acpi/utilities/utalloc.c
@@ -76,7 +76,7 @@ static acpi_status
76acpi_ut_create_list ( 76acpi_ut_create_list (
77 char *list_name, 77 char *list_name,
78 u16 object_size, 78 u16 object_size,
79 acpi_handle *return_cache); 79 struct acpi_memory_list **return_cache);
80#endif 80#endif
81 81
82 82
@@ -428,7 +428,7 @@ static acpi_status
428acpi_ut_create_list ( 428acpi_ut_create_list (
429 char *list_name, 429 char *list_name,
430 u16 object_size, 430 u16 object_size,
431 acpi_handle *return_cache) 431 struct acpi_memory_list **return_cache)
432{ 432{
433 struct acpi_memory_list *cache; 433 struct acpi_memory_list *cache;
434 434
diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c
index 3d5fbc810b0b..c27cbb7f5c54 100644
--- a/drivers/acpi/utilities/utdebug.c
+++ b/drivers/acpi/utilities/utdebug.c
@@ -55,6 +55,12 @@ static u32 acpi_gbl_prev_thread_id = 0xFFFFFFFF;
55static char *acpi_gbl_fn_entry_str = "----Entry"; 55static char *acpi_gbl_fn_entry_str = "----Entry";
56static char *acpi_gbl_fn_exit_str = "----Exit-"; 56static char *acpi_gbl_fn_exit_str = "----Exit-";
57 57
58/* Local prototypes */
59
60static const char *
61acpi_ut_trim_function_name (
62 const char *function_name);
63
58 64
59/******************************************************************************* 65/*******************************************************************************
60 * 66 *
@@ -72,7 +78,7 @@ void
72acpi_ut_init_stack_ptr_trace ( 78acpi_ut_init_stack_ptr_trace (
73 void) 79 void)
74{ 80{
75 u32 current_sp; 81 u32 current_sp;
76 82
77 83
78 acpi_gbl_entry_stack_pointer = ACPI_PTR_DIFF (&current_sp, NULL); 84 acpi_gbl_entry_stack_pointer = ACPI_PTR_DIFF (&current_sp, NULL);
@@ -95,7 +101,7 @@ void
95acpi_ut_track_stack_ptr ( 101acpi_ut_track_stack_ptr (
96 void) 102 void)
97{ 103{
98 acpi_size current_sp; 104 acpi_size current_sp;
99 105
100 106
101 current_sp = ACPI_PTR_DIFF (&current_sp, NULL); 107 current_sp = ACPI_PTR_DIFF (&current_sp, NULL);
@@ -112,6 +118,43 @@ acpi_ut_track_stack_ptr (
112 118
113/******************************************************************************* 119/*******************************************************************************
114 * 120 *
121 * FUNCTION: acpi_ut_trim_function_name
122 *
123 * PARAMETERS: function_name - Ascii string containing a procedure name
124 *
125 * RETURN: Updated pointer to the function name
126 *
127 * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
128 * This allows compiler macros such as __FUNCTION__ to be used
129 * with no change to the debug output.
130 *
131 ******************************************************************************/
132
133static const char *
134acpi_ut_trim_function_name (
135 const char *function_name)
136{
137
138 /* All Function names are longer than 4 chars, check is safe */
139
140 if (*(ACPI_CAST_PTR (u32, function_name)) == ACPI_FUNCTION_PREFIX1) {
141 /* This is the case where the original source has not been modified */
142
143 return (function_name + 4);
144 }
145
146 if (*(ACPI_CAST_PTR (u32, function_name)) == ACPI_FUNCTION_PREFIX2) {
147 /* This is the case where the source has been 'linuxized' */
148
149 return (function_name + 5);
150 }
151
152 return (function_name);
153}
154
155
156/*******************************************************************************
157 *
115 * FUNCTION: acpi_ut_debug_print 158 * FUNCTION: acpi_ut_debug_print
116 * 159 *
117 * PARAMETERS: requested_debug_level - Requested debug print level 160 * PARAMETERS: requested_debug_level - Requested debug print level
@@ -133,7 +176,7 @@ void ACPI_INTERNAL_VAR_XFACE
133acpi_ut_debug_print ( 176acpi_ut_debug_print (
134 u32 requested_debug_level, 177 u32 requested_debug_level,
135 u32 line_number, 178 u32 line_number,
136 char *function_name, 179 const char *function_name,
137 char *module_name, 180 char *module_name,
138 u32 component_id, 181 u32 component_id,
139 char *format, 182 char *format,
@@ -177,7 +220,7 @@ acpi_ut_debug_print (
177 } 220 }
178 221
179 acpi_os_printf ("[%02ld] %-22.22s: ", 222 acpi_os_printf ("[%02ld] %-22.22s: ",
180 acpi_gbl_nesting_level, function_name); 223 acpi_gbl_nesting_level, acpi_ut_trim_function_name (function_name));
181 224
182 va_start (args, format); 225 va_start (args, format);
183 acpi_os_vprintf (format, args); 226 acpi_os_vprintf (format, args);
@@ -208,7 +251,7 @@ void ACPI_INTERNAL_VAR_XFACE
208acpi_ut_debug_print_raw ( 251acpi_ut_debug_print_raw (
209 u32 requested_debug_level, 252 u32 requested_debug_level,
210 u32 line_number, 253 u32 line_number,
211 char *function_name, 254 const char *function_name,
212 char *module_name, 255 char *module_name,
213 u32 component_id, 256 u32 component_id,
214 char *format, 257 char *format,
@@ -247,7 +290,7 @@ EXPORT_SYMBOL(acpi_ut_debug_print_raw);
247void 290void
248acpi_ut_trace ( 291acpi_ut_trace (
249 u32 line_number, 292 u32 line_number,
250 char *function_name, 293 const char *function_name,
251 char *module_name, 294 char *module_name,
252 u32 component_id) 295 u32 component_id)
253{ 296{
@@ -282,7 +325,7 @@ EXPORT_SYMBOL(acpi_ut_trace);
282void 325void
283acpi_ut_trace_ptr ( 326acpi_ut_trace_ptr (
284 u32 line_number, 327 u32 line_number,
285 char *function_name, 328 const char *function_name,
286 char *module_name, 329 char *module_name,
287 u32 component_id, 330 u32 component_id,
288 void *pointer) 331 void *pointer)
@@ -316,7 +359,7 @@ acpi_ut_trace_ptr (
316void 359void
317acpi_ut_trace_str ( 360acpi_ut_trace_str (
318 u32 line_number, 361 u32 line_number,
319 char *function_name, 362 const char *function_name,
320 char *module_name, 363 char *module_name,
321 u32 component_id, 364 u32 component_id,
322 char *string) 365 char *string)
@@ -351,7 +394,7 @@ acpi_ut_trace_str (
351void 394void
352acpi_ut_trace_u32 ( 395acpi_ut_trace_u32 (
353 u32 line_number, 396 u32 line_number,
354 char *function_name, 397 const char *function_name,
355 char *module_name, 398 char *module_name,
356 u32 component_id, 399 u32 component_id,
357 u32 integer) 400 u32 integer)
@@ -385,7 +428,7 @@ acpi_ut_trace_u32 (
385void 428void
386acpi_ut_exit ( 429acpi_ut_exit (
387 u32 line_number, 430 u32 line_number,
388 char *function_name, 431 const char *function_name,
389 char *module_name, 432 char *module_name,
390 u32 component_id) 433 u32 component_id)
391{ 434{
@@ -419,7 +462,7 @@ EXPORT_SYMBOL(acpi_ut_exit);
419void 462void
420acpi_ut_status_exit ( 463acpi_ut_status_exit (
421 u32 line_number, 464 u32 line_number,
422 char *function_name, 465 const char *function_name,
423 char *module_name, 466 char *module_name,
424 u32 component_id, 467 u32 component_id,
425 acpi_status status) 468 acpi_status status)
@@ -463,7 +506,7 @@ EXPORT_SYMBOL(acpi_ut_status_exit);
463void 506void
464acpi_ut_value_exit ( 507acpi_ut_value_exit (
465 u32 line_number, 508 u32 line_number,
466 char *function_name, 509 const char *function_name,
467 char *module_name, 510 char *module_name,
468 u32 component_id, 511 u32 component_id,
469 acpi_integer value) 512 acpi_integer value)
@@ -499,7 +542,7 @@ EXPORT_SYMBOL(acpi_ut_value_exit);
499void 542void
500acpi_ut_ptr_exit ( 543acpi_ut_ptr_exit (
501 u32 line_number, 544 u32 line_number,
502 char *function_name, 545 const char *function_name,
503 char *module_name, 546 char *module_name,
504 u32 component_id, 547 u32 component_id,
505 u8 *ptr) 548 u8 *ptr)
@@ -607,8 +650,8 @@ acpi_ut_dump_buffer (
607 } 650 }
608 651
609 /* 652 /*
610 * Print the ASCII equivalent characters 653 * Print the ASCII equivalent characters but watch out for the bad
611 * But watch out for the bad unprintable ones... 654 * unprintable ones (printable chars are 0x20 through 0x7E)
612 */ 655 */
613 acpi_os_printf (" "); 656 acpi_os_printf (" ");
614 for (j = 0; j < 16; j++) { 657 for (j = 0; j < 16; j++) {
@@ -618,9 +661,7 @@ acpi_ut_dump_buffer (
618 } 661 }
619 662
620 buf_char = buffer[i + j]; 663 buf_char = buffer[i + j];
621 if ((buf_char > 0x1F && buf_char < 0x2E) || 664 if (ACPI_IS_PRINT (buf_char)) {
622 (buf_char > 0x2F && buf_char < 0x61) ||
623 (buf_char > 0x60 && buf_char < 0x7F)) {
624 acpi_os_printf ("%c", buf_char); 665 acpi_os_printf ("%c", buf_char);
625 } 666 }
626 else { 667 else {
diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c
index df715cd89105..1d350b302a34 100644
--- a/drivers/acpi/utilities/utmisc.c
+++ b/drivers/acpi/utilities/utmisc.c
@@ -56,7 +56,11 @@
56 * 56 *
57 * PARAMETERS: owner_id - Where the new owner ID is returned 57 * PARAMETERS: owner_id - Where the new owner ID is returned
58 * 58 *
59 * DESCRIPTION: Allocate a table or method owner id 59 * RETURN: Status
60 *
61 * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to
62 * track objects created by the table or method, to be deleted
63 * when the method exits or the table is unloaded.
60 * 64 *
61 ******************************************************************************/ 65 ******************************************************************************/
62 66
@@ -71,6 +75,8 @@ acpi_ut_allocate_owner_id (
71 ACPI_FUNCTION_TRACE ("ut_allocate_owner_id"); 75 ACPI_FUNCTION_TRACE ("ut_allocate_owner_id");
72 76
73 77
78 /* Mutex for the global ID mask */
79
74 status = acpi_ut_acquire_mutex (ACPI_MTX_CACHES); 80 status = acpi_ut_acquire_mutex (ACPI_MTX_CACHES);
75 if (ACPI_FAILURE (status)) { 81 if (ACPI_FAILURE (status)) {
76 return_ACPI_STATUS (status); 82 return_ACPI_STATUS (status);
@@ -81,7 +87,7 @@ acpi_ut_allocate_owner_id (
81 for (i = 0; i < 32; i++) { 87 for (i = 0; i < 32; i++) {
82 if (!(acpi_gbl_owner_id_mask & (1 << i))) { 88 if (!(acpi_gbl_owner_id_mask & (1 << i))) {
83 acpi_gbl_owner_id_mask |= (1 << i); 89 acpi_gbl_owner_id_mask |= (1 << i);
84 *owner_id = (acpi_owner_id) i; 90 *owner_id = (acpi_owner_id) (i + 1);
85 goto exit; 91 goto exit;
86 } 92 }
87 } 93 }
@@ -93,6 +99,7 @@ acpi_ut_allocate_owner_id (
93 * they are released when a table is unloaded or a method completes 99 * they are released when a table is unloaded or a method completes
94 * execution. 100 * execution.
95 */ 101 */
102 *owner_id = 0;
96 status = AE_OWNER_ID_LIMIT; 103 status = AE_OWNER_ID_LIMIT;
97 ACPI_REPORT_ERROR (( 104 ACPI_REPORT_ERROR ((
98 "Could not allocate new owner_id (32 max), AE_OWNER_ID_LIMIT\n")); 105 "Could not allocate new owner_id (32 max), AE_OWNER_ID_LIMIT\n"));
@@ -107,40 +114,55 @@ exit:
107 * 114 *
108 * FUNCTION: acpi_ut_release_owner_id 115 * FUNCTION: acpi_ut_release_owner_id
109 * 116 *
110 * PARAMETERS: owner_id - A previously allocated owner ID 117 * PARAMETERS: owner_id_ptr - Pointer to a previously allocated owner_iD
111 * 118 *
112 * DESCRIPTION: Release a table or method owner id 119 * RETURN: None. No error is returned because we are either exiting a
120 * control method or unloading a table. Either way, we would
121 * ignore any error anyway.
122 *
123 * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 32
113 * 124 *
114 ******************************************************************************/ 125 ******************************************************************************/
115 126
116acpi_status 127void
117acpi_ut_release_owner_id ( 128acpi_ut_release_owner_id (
118 acpi_owner_id owner_id) 129 acpi_owner_id *owner_id_ptr)
119{ 130{
131 acpi_owner_id owner_id = *owner_id_ptr;
120 acpi_status status; 132 acpi_status status;
121 133
122 134
123 ACPI_FUNCTION_TRACE ("ut_release_owner_id"); 135 ACPI_FUNCTION_TRACE ("ut_release_owner_id");
124 136
125 137
138 /* Always clear the input owner_id (zero is an invalid ID) */
139
140 *owner_id_ptr = 0;
141
142 /* Zero is not a valid owner_iD */
143
144 if ((owner_id == 0) || (owner_id > 32)) {
145 ACPI_REPORT_ERROR (("Invalid owner_id: %2.2X\n", owner_id));
146 return_VOID;
147 }
148
149 /* Mutex for the global ID mask */
150
126 status = acpi_ut_acquire_mutex (ACPI_MTX_CACHES); 151 status = acpi_ut_acquire_mutex (ACPI_MTX_CACHES);
127 if (ACPI_FAILURE (status)) { 152 if (ACPI_FAILURE (status)) {
128 return_ACPI_STATUS (status); 153 return_VOID;
129 } 154 }
130 155
131 /* Free the owner ID */ 156 owner_id--; /* Normalize to zero */
157
158 /* Free the owner ID only if it is valid */
132 159
133 if (acpi_gbl_owner_id_mask & (1 << owner_id)) { 160 if (acpi_gbl_owner_id_mask & (1 << owner_id)) {
134 acpi_gbl_owner_id_mask ^= (1 << owner_id); 161 acpi_gbl_owner_id_mask ^= (1 << owner_id);
135 } 162 }
136 else {
137 /* This owner_id has not been allocated */
138
139 status = AE_NOT_EXIST;
140 }
141 163
142 (void) acpi_ut_release_mutex (ACPI_MTX_CACHES); 164 (void) acpi_ut_release_mutex (ACPI_MTX_CACHES);
143 return_ACPI_STATUS (status); 165 return_VOID;
144} 166}
145 167
146 168
@@ -150,7 +172,7 @@ acpi_ut_release_owner_id (
150 * 172 *
151 * PARAMETERS: src_string - The source string to convert 173 * PARAMETERS: src_string - The source string to convert
152 * 174 *
153 * RETURN: Converted src_string (same as input pointer) 175 * RETURN: None
154 * 176 *
155 * DESCRIPTION: Convert string to uppercase 177 * DESCRIPTION: Convert string to uppercase
156 * 178 *
@@ -158,7 +180,7 @@ acpi_ut_release_owner_id (
158 * 180 *
159 ******************************************************************************/ 181 ******************************************************************************/
160 182
161char * 183void
162acpi_ut_strupr ( 184acpi_ut_strupr (
163 char *src_string) 185 char *src_string)
164{ 186{
@@ -169,7 +191,7 @@ acpi_ut_strupr (
169 191
170 192
171 if (!src_string) { 193 if (!src_string) {
172 return (NULL); 194 return;
173 } 195 }
174 196
175 /* Walk entire string, uppercasing the letters */ 197 /* Walk entire string, uppercasing the letters */
@@ -178,7 +200,7 @@ acpi_ut_strupr (
178 *string = (char) ACPI_TOUPPER (*string); 200 *string = (char) ACPI_TOUPPER (*string);
179 } 201 }
180 202
181 return (src_string); 203 return;
182} 204}
183 205
184 206
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-22 11:46:12 -0500