Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes) |
| 4 | * |
| 5 | *****************************************************************************/ |
| 6 | |
| 7 | /* |
Bob Moore | b4e104e | 2011-01-17 11:05:40 +0800 | [diff] [blame^] | 8 | * Copyright (C) 2000 - 2011, Intel Corp. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | * All rights reserved. |
| 10 | * |
| 11 | * Redistribution and use in source and binary forms, with or without |
| 12 | * modification, are permitted provided that the following conditions |
| 13 | * are met: |
| 14 | * 1. Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions, and the following disclaimer, |
| 16 | * without modification. |
| 17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| 18 | * substantially similar to the "NO WARRANTY" disclaimer below |
| 19 | * ("Disclaimer") and any redistribution must be conditioned upon |
| 20 | * including a substantially similar Disclaimer requirement for further |
| 21 | * binary redistribution. |
| 22 | * 3. Neither the names of the above-listed copyright holders nor the names |
| 23 | * of any contributors may be used to endorse or promote products derived |
| 24 | * from this software without specific prior written permission. |
| 25 | * |
| 26 | * Alternatively, this software may be distributed under the terms of the |
| 27 | * GNU General Public License ("GPL") version 2 as published by the Free |
| 28 | * Software Foundation. |
| 29 | * |
| 30 | * NO WARRANTY |
| 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR |
| 34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| 40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 41 | * POSSIBILITY OF SUCH DAMAGES. |
| 42 | */ |
| 43 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <acpi/acpi.h> |
Len Brown | e2f7a77 | 2009-01-09 00:30:03 -0500 | [diff] [blame] | 45 | #include "accommon.h" |
| 46 | #include "acinterp.h" |
| 47 | #include "acnamesp.h" |
| 48 | #include "actables.h" |
| 49 | #include "acdispat.h" |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 50 | #include "acevents.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | #define _COMPONENT ACPI_EXECUTER |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 53 | ACPI_MODULE_NAME("exconfig") |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 55 | /* Local prototypes */ |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 56 | static acpi_status |
Bob Moore | 67a119f | 2008-06-10 13:42:13 +0800 | [diff] [blame] | 57 | acpi_ex_add_table(u32 table_index, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 58 | struct acpi_namespace_node *parent_node, |
| 59 | union acpi_operand_object **ddb_handle); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 61 | static acpi_status |
| 62 | acpi_ex_region_read(union acpi_operand_object *obj_desc, |
| 63 | u32 length, u8 *buffer); |
| 64 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | /******************************************************************************* |
| 66 | * |
| 67 | * FUNCTION: acpi_ex_add_table |
| 68 | * |
| 69 | * PARAMETERS: Table - Pointer to raw table |
| 70 | * parent_node - Where to load the table (scope) |
| 71 | * ddb_handle - Where to return the table handle. |
| 72 | * |
| 73 | * RETURN: Status |
| 74 | * |
| 75 | * DESCRIPTION: Common function to Install and Load an ACPI table with a |
| 76 | * returned table handle. |
| 77 | * |
| 78 | ******************************************************************************/ |
| 79 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 80 | static acpi_status |
Bob Moore | 67a119f | 2008-06-10 13:42:13 +0800 | [diff] [blame] | 81 | acpi_ex_add_table(u32 table_index, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 82 | struct acpi_namespace_node *parent_node, |
| 83 | union acpi_operand_object **ddb_handle) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 85 | union acpi_operand_object *obj_desc; |
Bob Moore | 186c307 | 2010-04-27 11:32:28 +0800 | [diff] [blame] | 86 | acpi_status status; |
| 87 | acpi_owner_id owner_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 89 | ACPI_FUNCTION_TRACE(ex_add_table); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | |
| 91 | /* Create an object to be the table handle */ |
| 92 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 93 | obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | if (!obj_desc) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 95 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | } |
| 97 | |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 98 | /* Init the table handle */ |
| 99 | |
Lin Ming | e0be6f5 | 2009-05-21 10:32:02 +0800 | [diff] [blame] | 100 | obj_desc->common.flags |= AOPOBJ_DATA_VALID; |
Bob Moore | 1044f1f | 2008-09-27 11:08:41 +0800 | [diff] [blame] | 101 | obj_desc->reference.class = ACPI_REFCLASS_TABLE; |
Robert Moore | 0c9938c | 2005-07-29 15:15:00 -0700 | [diff] [blame] | 102 | *ddb_handle = obj_desc; |
| 103 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | /* Install the new table into the local data structures */ |
| 105 | |
Bob Moore | 57e664c | 2008-09-27 10:40:39 +0800 | [diff] [blame] | 106 | obj_desc->reference.value = table_index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | |
| 108 | /* Add the table to the namespace */ |
| 109 | |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 110 | status = acpi_ns_load_table(table_index, parent_node); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 111 | if (ACPI_FAILURE(status)) { |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 112 | acpi_ut_remove_reference(obj_desc); |
| 113 | *ddb_handle = NULL; |
Lin Ming | 7f0c826 | 2009-08-13 14:03:15 +0800 | [diff] [blame] | 114 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | } |
| 116 | |
Lin Ming | 7f0c826 | 2009-08-13 14:03:15 +0800 | [diff] [blame] | 117 | /* Execute any module-level code that was found in the table */ |
| 118 | |
| 119 | acpi_ex_exit_interpreter(); |
| 120 | acpi_ns_exec_module_code_list(); |
| 121 | acpi_ex_enter_interpreter(); |
| 122 | |
Rafael J. Wysocki | 9874647 | 2010-07-08 00:43:36 +0200 | [diff] [blame] | 123 | /* Update GPEs for any new _Lxx/_Exx methods. Ignore errors */ |
Bob Moore | 186c307 | 2010-04-27 11:32:28 +0800 | [diff] [blame] | 124 | |
| 125 | status = acpi_tb_get_owner_id(table_index, &owner_id); |
| 126 | if (ACPI_SUCCESS(status)) { |
| 127 | acpi_ev_update_gpes(owner_id); |
| 128 | } |
| 129 | |
| 130 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | } |
| 132 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | /******************************************************************************* |
| 134 | * |
| 135 | * FUNCTION: acpi_ex_load_table_op |
| 136 | * |
| 137 | * PARAMETERS: walk_state - Current state with operands |
| 138 | * return_desc - Where to store the return object |
| 139 | * |
| 140 | * RETURN: Status |
| 141 | * |
Alexey Starikovskiy | a6823e1 | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 142 | * DESCRIPTION: Load an ACPI table from the RSDT/XSDT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 143 | * |
| 144 | ******************************************************************************/ |
| 145 | |
| 146 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 147 | acpi_ex_load_table_op(struct acpi_walk_state *walk_state, |
| 148 | union acpi_operand_object **return_desc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 150 | acpi_status status; |
| 151 | union acpi_operand_object **operand = &walk_state->operands[0]; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 152 | struct acpi_namespace_node *parent_node; |
| 153 | struct acpi_namespace_node *start_node; |
| 154 | struct acpi_namespace_node *parameter_node = NULL; |
| 155 | union acpi_operand_object *ddb_handle; |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 156 | struct acpi_table_header *table; |
Bob Moore | 67a119f | 2008-06-10 13:42:13 +0800 | [diff] [blame] | 157 | u32 table_index; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 159 | ACPI_FUNCTION_TRACE(ex_load_table_op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | |
Lin Ming | 49718b1 | 2008-04-10 19:06:40 +0400 | [diff] [blame] | 161 | /* Validate lengths for the signature_string, OEMIDString, OEMtable_iD */ |
| 162 | |
| 163 | if ((operand[0]->string.length > ACPI_NAME_SIZE) || |
| 164 | (operand[1]->string.length > ACPI_OEM_ID_SIZE) || |
| 165 | (operand[2]->string.length > ACPI_OEM_TABLE_ID_SIZE)) { |
| 166 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
| 167 | } |
| 168 | |
Alexey Starikovskiy | a6823e1 | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 169 | /* Find the ACPI table in the RSDT/XSDT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 171 | status = acpi_tb_find_table(operand[0]->string.pointer, |
| 172 | operand[1]->string.pointer, |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 173 | operand[2]->string.pointer, &table_index); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 174 | if (ACPI_FAILURE(status)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | if (status != AE_NOT_FOUND) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 176 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | } |
| 178 | |
| 179 | /* Table not found, return an Integer=0 and AE_OK */ |
| 180 | |
Bob Moore | dc95a27 | 2009-11-12 09:52:45 +0800 | [diff] [blame] | 181 | ddb_handle = acpi_ut_create_integer_object((u64) 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | if (!ddb_handle) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 183 | return_ACPI_STATUS(AE_NO_MEMORY); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | } |
| 185 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | *return_desc = ddb_handle; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 187 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | /* Default nodes */ |
| 191 | |
| 192 | start_node = walk_state->scope_info->scope.node; |
| 193 | parent_node = acpi_gbl_root_node; |
| 194 | |
| 195 | /* root_path (optional parameter) */ |
| 196 | |
| 197 | if (operand[3]->string.length > 0) { |
| 198 | /* |
| 199 | * Find the node referenced by the root_path_string. This is the |
| 200 | * location within the namespace where the table will be loaded. |
| 201 | */ |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 202 | status = |
Bob Moore | 4119532 | 2006-05-26 16:36:00 -0400 | [diff] [blame] | 203 | acpi_ns_get_node(start_node, operand[3]->string.pointer, |
| 204 | ACPI_NS_SEARCH_PARENT, &parent_node); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 205 | if (ACPI_FAILURE(status)) { |
| 206 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | } |
| 208 | } |
| 209 | |
| 210 | /* parameter_path (optional parameter) */ |
| 211 | |
| 212 | if (operand[4]->string.length > 0) { |
| 213 | if ((operand[4]->string.pointer[0] != '\\') && |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 214 | (operand[4]->string.pointer[0] != '^')) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | /* |
| 216 | * Path is not absolute, so it will be relative to the node |
| 217 | * referenced by the root_path_string (or the NS root if omitted) |
| 218 | */ |
| 219 | start_node = parent_node; |
| 220 | } |
| 221 | |
Robert Moore | 44f6c01 | 2005-04-18 22:49:35 -0400 | [diff] [blame] | 222 | /* Find the node referenced by the parameter_path_string */ |
| 223 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 224 | status = |
Bob Moore | 4119532 | 2006-05-26 16:36:00 -0400 | [diff] [blame] | 225 | acpi_ns_get_node(start_node, operand[4]->string.pointer, |
| 226 | ACPI_NS_SEARCH_PARENT, ¶meter_node); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 227 | if (ACPI_FAILURE(status)) { |
| 228 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | } |
| 230 | } |
| 231 | |
| 232 | /* Load the table into the namespace */ |
| 233 | |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 234 | status = acpi_ex_add_table(table_index, parent_node, &ddb_handle); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 235 | if (ACPI_FAILURE(status)) { |
| 236 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | } |
| 238 | |
| 239 | /* Parameter Data (optional) */ |
| 240 | |
| 241 | if (parameter_node) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 242 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | /* Store the parameter data into the optional parameter object */ |
| 244 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 245 | status = acpi_ex_store(operand[5], |
| 246 | ACPI_CAST_PTR(union acpi_operand_object, |
| 247 | parameter_node), |
| 248 | walk_state); |
| 249 | if (ACPI_FAILURE(status)) { |
| 250 | (void)acpi_ex_unload_table(ddb_handle); |
Lin Ming | 06366c1 | 2009-05-21 10:29:28 +0800 | [diff] [blame] | 251 | |
| 252 | acpi_ut_remove_reference(ddb_handle); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 253 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | } |
| 255 | } |
| 256 | |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 257 | status = acpi_get_table_by_index(table_index, &table); |
| 258 | if (ACPI_SUCCESS(status)) { |
Bob Moore | 186c307 | 2010-04-27 11:32:28 +0800 | [diff] [blame] | 259 | ACPI_INFO((AE_INFO, "Dynamic OEM Table Load:")); |
| 260 | acpi_tb_print_table_header(0, table); |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 261 | } |
Bob Moore | 967440e3 | 2006-06-23 17:04:00 -0400 | [diff] [blame] | 262 | |
Lin Ming | 3e08e2d | 2008-04-10 19:06:38 +0400 | [diff] [blame] | 263 | /* Invoke table handler if present */ |
| 264 | |
| 265 | if (acpi_gbl_table_handler) { |
| 266 | (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table, |
| 267 | acpi_gbl_table_handler_context); |
| 268 | } |
| 269 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | *return_desc = ddb_handle; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 271 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | } |
| 273 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | /******************************************************************************* |
| 275 | * |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 276 | * FUNCTION: acpi_ex_region_read |
| 277 | * |
| 278 | * PARAMETERS: obj_desc - Region descriptor |
| 279 | * Length - Number of bytes to read |
| 280 | * Buffer - Pointer to where to put the data |
| 281 | * |
| 282 | * RETURN: Status |
| 283 | * |
| 284 | * DESCRIPTION: Read data from an operation region. The read starts from the |
| 285 | * beginning of the region. |
| 286 | * |
| 287 | ******************************************************************************/ |
| 288 | |
| 289 | static acpi_status |
| 290 | acpi_ex_region_read(union acpi_operand_object *obj_desc, u32 length, u8 *buffer) |
| 291 | { |
| 292 | acpi_status status; |
Bob Moore | 5df7e6c | 2010-01-21 10:06:32 +0800 | [diff] [blame] | 293 | u64 value; |
Bob Moore | f5407af | 2009-05-21 10:56:52 +0800 | [diff] [blame] | 294 | u32 region_offset = 0; |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 295 | u32 i; |
| 296 | |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 297 | /* Bytewise reads */ |
| 298 | |
| 299 | for (i = 0; i < length; i++) { |
| 300 | status = acpi_ev_address_space_dispatch(obj_desc, ACPI_READ, |
Bob Moore | f5407af | 2009-05-21 10:56:52 +0800 | [diff] [blame] | 301 | region_offset, 8, |
| 302 | &value); |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 303 | if (ACPI_FAILURE(status)) { |
| 304 | return status; |
| 305 | } |
| 306 | |
| 307 | *buffer = (u8)value; |
| 308 | buffer++; |
Bob Moore | f5407af | 2009-05-21 10:56:52 +0800 | [diff] [blame] | 309 | region_offset++; |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 310 | } |
| 311 | |
| 312 | return AE_OK; |
| 313 | } |
| 314 | |
| 315 | /******************************************************************************* |
| 316 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | * FUNCTION: acpi_ex_load_op |
| 318 | * |
Alexey Starikovskiy | a6823e1 | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 319 | * PARAMETERS: obj_desc - Region or Buffer/Field where the table will be |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | * obtained |
| 321 | * Target - Where a handle to the table will be stored |
| 322 | * walk_state - Current state |
| 323 | * |
| 324 | * RETURN: Status |
| 325 | * |
| 326 | * DESCRIPTION: Load an ACPI table from a field or operation region |
| 327 | * |
Alexey Starikovskiy | a6823e1 | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 328 | * NOTE: Region Fields (Field, bank_field, index_fields) are resolved to buffer |
| 329 | * objects before this code is reached. |
| 330 | * |
| 331 | * If source is an operation region, it must refer to system_memory, as |
| 332 | * per the ACPI specification. |
| 333 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | ******************************************************************************/ |
| 335 | |
| 336 | acpi_status |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 337 | acpi_ex_load_op(union acpi_operand_object *obj_desc, |
| 338 | union acpi_operand_object *target, |
| 339 | struct acpi_walk_state *walk_state) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 341 | union acpi_operand_object *ddb_handle; |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 342 | struct acpi_table_header *table; |
Alexey Starikovskiy | 428f211 | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 343 | struct acpi_table_desc table_desc; |
Bob Moore | 67a119f | 2008-06-10 13:42:13 +0800 | [diff] [blame] | 344 | u32 table_index; |
Alexey Starikovskiy | a6823e1 | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 345 | acpi_status status; |
Bob Moore | 98af37f | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 346 | u32 length; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 348 | ACPI_FUNCTION_TRACE(ex_load_op); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | |
Alexey Starikovskiy | 428f211 | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 350 | ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc)); |
Alexey Starikovskiy | a6823e1 | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 351 | |
| 352 | /* Source Object can be either an op_region or a Buffer/Field */ |
| 353 | |
Bob Moore | 3371c19 | 2009-02-18 14:44:03 +0800 | [diff] [blame] | 354 | switch (obj_desc->common.type) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | case ACPI_TYPE_REGION: |
| 356 | |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 357 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 358 | "Load table from Region %p\n", obj_desc)); |
Bob Moore | 5eb6918 | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 359 | |
Alexey Starikovskiy | a6823e1 | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 360 | /* Region must be system_memory (from ACPI spec) */ |
| 361 | |
| 362 | if (obj_desc->region.space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) { |
| 363 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
| 364 | } |
| 365 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | /* |
| 367 | * If the Region Address and Length have not been previously evaluated, |
| 368 | * evaluate them now and save the results. |
| 369 | */ |
| 370 | if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 371 | status = acpi_ds_get_region_arguments(obj_desc); |
| 372 | if (ACPI_FAILURE(status)) { |
| 373 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | } |
| 375 | } |
| 376 | |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 377 | /* Get the table header first so we can get the table length */ |
| 378 | |
| 379 | table = ACPI_ALLOCATE(sizeof(struct acpi_table_header)); |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 380 | if (!table) { |
| 381 | return_ACPI_STATUS(AE_NO_MEMORY); |
| 382 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 384 | status = |
| 385 | acpi_ex_region_read(obj_desc, |
| 386 | sizeof(struct acpi_table_header), |
| 387 | ACPI_CAST_PTR(u8, table)); |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 388 | length = table->length; |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 389 | ACPI_FREE(table); |
| 390 | |
| 391 | if (ACPI_FAILURE(status)) { |
| 392 | return_ACPI_STATUS(status); |
| 393 | } |
Bob Moore | 98af37f | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 394 | |
| 395 | /* Must have at least an ACPI table header */ |
| 396 | |
| 397 | if (length < sizeof(struct acpi_table_header)) { |
| 398 | return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); |
| 399 | } |
| 400 | |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 401 | /* |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 402 | * The original implementation simply mapped the table, with no copy. |
| 403 | * However, the memory region is not guaranteed to remain stable and |
| 404 | * we must copy the table to a local buffer. For example, the memory |
| 405 | * region is corrupted after suspend on some machines. Dynamically |
| 406 | * loaded tables are usually small, so this overhead is minimal. |
| 407 | * |
| 408 | * The latest implementation (5/2009) does not use a mapping at all. |
| 409 | * We use the low-level operation region interface to read the table |
| 410 | * instead of the obvious optimization of using a direct mapping. |
| 411 | * This maintains a consistent use of operation regions across the |
| 412 | * entire subsystem. This is important if additional processing must |
| 413 | * be performed in the (possibly user-installed) operation region |
| 414 | * handler. For example, acpi_exec and ASLTS depend on this. |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 415 | */ |
Bob Moore | 98af37f | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 416 | |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 417 | /* Allocate a buffer for the table */ |
| 418 | |
| 419 | table_desc.pointer = ACPI_ALLOCATE(length); |
| 420 | if (!table_desc.pointer) { |
| 421 | return_ACPI_STATUS(AE_NO_MEMORY); |
| 422 | } |
| 423 | |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 424 | /* Read the entire table */ |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 425 | |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 426 | status = acpi_ex_region_read(obj_desc, length, |
| 427 | ACPI_CAST_PTR(u8, |
| 428 | table_desc.pointer)); |
| 429 | if (ACPI_FAILURE(status)) { |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 430 | ACPI_FREE(table_desc.pointer); |
Bob Moore | 3c59f960 | 2009-05-21 10:51:53 +0800 | [diff] [blame] | 431 | return_ACPI_STATUS(status); |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 432 | } |
| 433 | |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 434 | table_desc.address = obj_desc->region.address; |
| 435 | break; |
| 436 | |
| 437 | case ACPI_TYPE_BUFFER: /* Buffer or resolved region_field */ |
| 438 | |
| 439 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
| 440 | "Load table from Buffer or Field %p\n", |
| 441 | obj_desc)); |
| 442 | |
| 443 | /* Must have at least an ACPI table header */ |
| 444 | |
| 445 | if (obj_desc->buffer.length < sizeof(struct acpi_table_header)) { |
| 446 | return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); |
| 447 | } |
| 448 | |
| 449 | /* Get the actual table length from the table header */ |
| 450 | |
| 451 | table = |
| 452 | ACPI_CAST_PTR(struct acpi_table_header, |
| 453 | obj_desc->buffer.pointer); |
| 454 | length = table->length; |
| 455 | |
| 456 | /* Table cannot extend beyond the buffer */ |
| 457 | |
| 458 | if (length > obj_desc->buffer.length) { |
| 459 | return_ACPI_STATUS(AE_AML_BUFFER_LIMIT); |
| 460 | } |
| 461 | if (length < sizeof(struct acpi_table_header)) { |
| 462 | return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); |
Bob Moore | 98af37f | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 463 | } |
| 464 | |
Bob Moore | 5eb6918 | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 465 | /* |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 466 | * Copy the table from the buffer because the buffer could be modified |
| 467 | * or even deleted in the future |
Bob Moore | 5eb6918 | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 468 | */ |
Bob Moore | 98af37f | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 469 | table_desc.pointer = ACPI_ALLOCATE(length); |
Bob Moore | 5eb6918 | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 470 | if (!table_desc.pointer) { |
| 471 | return_ACPI_STATUS(AE_NO_MEMORY); |
| 472 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 474 | ACPI_MEMCPY(table_desc.pointer, table, length); |
| 475 | table_desc.address = ACPI_TO_INTEGER(table_desc.pointer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | break; |
| 477 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | default: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 479 | return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | } |
| 481 | |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 482 | /* Validate table checksum (will not get validated in tb_add_table) */ |
| 483 | |
| 484 | status = acpi_tb_verify_checksum(table_desc.pointer, length); |
| 485 | if (ACPI_FAILURE(status)) { |
| 486 | ACPI_FREE(table_desc.pointer); |
| 487 | return_ACPI_STATUS(status); |
| 488 | } |
| 489 | |
| 490 | /* Complete the table descriptor */ |
| 491 | |
| 492 | table_desc.length = length; |
| 493 | table_desc.flags = ACPI_TABLE_ORIGIN_ALLOCATED; |
| 494 | |
| 495 | /* Install the new table into the local data structures */ |
| 496 | |
Alexey Starikovskiy | 428f211 | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 497 | status = acpi_tb_add_table(&table_desc, &table_index); |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 498 | if (ACPI_FAILURE(status)) { |
Bob Moore | 2147d3f | 2010-01-21 09:08:31 +0800 | [diff] [blame] | 499 | |
| 500 | /* Delete allocated table buffer */ |
| 501 | |
| 502 | acpi_tb_delete_table(&table_desc); |
| 503 | return_ACPI_STATUS(status); |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 504 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 505 | |
Bob Moore | 0bda3f2 | 2008-06-10 14:14:17 +0800 | [diff] [blame] | 506 | /* |
| 507 | * Add the table to the namespace. |
| 508 | * |
Dennis Noordsij | f0e0da8 | 2008-08-15 09:37:58 +0800 | [diff] [blame] | 509 | * Note: Load the table objects relative to the root of the namespace. |
Bob Moore | 0bda3f2 | 2008-06-10 14:14:17 +0800 | [diff] [blame] | 510 | * This appears to go against the ACPI specification, but we do it for |
| 511 | * compatibility with other ACPI implementations. |
| 512 | */ |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 513 | status = |
Bob Moore | 0bda3f2 | 2008-06-10 14:14:17 +0800 | [diff] [blame] | 514 | acpi_ex_add_table(table_index, acpi_gbl_root_node, &ddb_handle); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 515 | if (ACPI_FAILURE(status)) { |
Bob Moore | 52fc0b0 | 2006-10-02 00:00:00 -0400 | [diff] [blame] | 516 | |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 517 | /* On error, table_ptr was deallocated above */ |
| 518 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 519 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | } |
| 521 | |
| 522 | /* Store the ddb_handle into the Target operand */ |
| 523 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 524 | status = acpi_ex_store(ddb_handle, target, walk_state); |
| 525 | if (ACPI_FAILURE(status)) { |
| 526 | (void)acpi_ex_unload_table(ddb_handle); |
Robert Moore | 88ac00f | 2005-05-26 00:00:00 -0400 | [diff] [blame] | 527 | |
| 528 | /* table_ptr was deallocated above */ |
| 529 | |
Bob Moore | a13b846 | 2008-04-10 19:06:39 +0400 | [diff] [blame] | 530 | acpi_ut_remove_reference(ddb_handle); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 531 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | } |
| 533 | |
Bob Moore | 186c307 | 2010-04-27 11:32:28 +0800 | [diff] [blame] | 534 | ACPI_INFO((AE_INFO, "Dynamic OEM Table Load:")); |
| 535 | acpi_tb_print_table_header(0, table_desc.pointer); |
| 536 | |
Lin Ming | 06366c1 | 2009-05-21 10:29:28 +0800 | [diff] [blame] | 537 | /* Remove the reference by added by acpi_ex_store above */ |
| 538 | |
| 539 | acpi_ut_remove_reference(ddb_handle); |
| 540 | |
Lin Ming | 3e08e2d | 2008-04-10 19:06:38 +0400 | [diff] [blame] | 541 | /* Invoke table handler if present */ |
| 542 | |
| 543 | if (acpi_gbl_table_handler) { |
| 544 | (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, |
| 545 | table_desc.pointer, |
| 546 | acpi_gbl_table_handler_context); |
| 547 | } |
| 548 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 549 | return_ACPI_STATUS(status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 550 | } |
| 551 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | /******************************************************************************* |
| 553 | * |
| 554 | * FUNCTION: acpi_ex_unload_table |
| 555 | * |
| 556 | * PARAMETERS: ddb_handle - Handle to a previously loaded table |
| 557 | * |
| 558 | * RETURN: Status |
| 559 | * |
| 560 | * DESCRIPTION: Unload an ACPI table |
| 561 | * |
| 562 | ******************************************************************************/ |
| 563 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 564 | acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 566 | acpi_status status = AE_OK; |
| 567 | union acpi_operand_object *table_desc = ddb_handle; |
Bob Moore | 67a119f | 2008-06-10 13:42:13 +0800 | [diff] [blame] | 568 | u32 table_index; |
Lin Ming | 3e08e2d | 2008-04-10 19:06:38 +0400 | [diff] [blame] | 569 | struct acpi_table_header *table; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | |
Bob Moore | b229cf9 | 2006-04-21 17:15:00 -0400 | [diff] [blame] | 571 | ACPI_FUNCTION_TRACE(ex_unload_table); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 572 | |
| 573 | /* |
| 574 | * Validate the handle |
Lin Ming | e0be6f5 | 2009-05-21 10:32:02 +0800 | [diff] [blame] | 575 | * Although the handle is partially validated in acpi_ex_reconfiguration() |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | * when it calls acpi_ex_resolve_operands(), the handle is more completely |
| 577 | * validated here. |
Lin Ming | e0be6f5 | 2009-05-21 10:32:02 +0800 | [diff] [blame] | 578 | * |
| 579 | * Handle must be a valid operand object of type reference. Also, the |
| 580 | * ddb_handle must still be marked valid (table has not been previously |
| 581 | * unloaded) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 582 | */ |
| 583 | if ((!ddb_handle) || |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 584 | (ACPI_GET_DESCRIPTOR_TYPE(ddb_handle) != ACPI_DESC_TYPE_OPERAND) || |
Lin Ming | e0be6f5 | 2009-05-21 10:32:02 +0800 | [diff] [blame] | 585 | (ddb_handle->common.type != ACPI_TYPE_LOCAL_REFERENCE) || |
| 586 | (!(ddb_handle->common.flags & AOPOBJ_DATA_VALID))) { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 587 | return_ACPI_STATUS(AE_BAD_PARAMETER); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | } |
| 589 | |
Bob Moore | 57e664c | 2008-09-27 10:40:39 +0800 | [diff] [blame] | 590 | /* Get the table index from the ddb_handle */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 591 | |
Bob Moore | 57e664c | 2008-09-27 10:40:39 +0800 | [diff] [blame] | 592 | table_index = table_desc->reference.value; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | |
Lin Ming | e0be6f5 | 2009-05-21 10:32:02 +0800 | [diff] [blame] | 594 | /* Ensure the table is still loaded */ |
| 595 | |
| 596 | if (!acpi_tb_is_table_loaded(table_index)) { |
| 597 | return_ACPI_STATUS(AE_NOT_EXIST); |
| 598 | } |
| 599 | |
Lin Ming | 3e08e2d | 2008-04-10 19:06:38 +0400 | [diff] [blame] | 600 | /* Invoke table handler if present */ |
| 601 | |
| 602 | if (acpi_gbl_table_handler) { |
| 603 | status = acpi_get_table_by_index(table_index, &table); |
| 604 | if (ACPI_SUCCESS(status)) { |
| 605 | (void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_UNLOAD, |
| 606 | table, |
| 607 | acpi_gbl_table_handler_context); |
| 608 | } |
| 609 | } |
| 610 | |
Bob Moore | 8a335a23 | 2009-03-09 16:31:04 +0800 | [diff] [blame] | 611 | /* Delete the portion of the namespace owned by this table */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 612 | |
Bob Moore | 8a335a23 | 2009-03-09 16:31:04 +0800 | [diff] [blame] | 613 | status = acpi_tb_delete_namespace_by_owner(table_index); |
| 614 | if (ACPI_FAILURE(status)) { |
| 615 | return_ACPI_STATUS(status); |
| 616 | } |
| 617 | |
| 618 | (void)acpi_tb_release_owner_id(table_index); |
Bob Moore | f3d2e78 | 2007-02-02 19:48:18 +0300 | [diff] [blame] | 619 | acpi_tb_set_table_loaded_flag(table_index, FALSE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | |
Lin Ming | e0be6f5 | 2009-05-21 10:32:02 +0800 | [diff] [blame] | 621 | /* |
| 622 | * Invalidate the handle. We do this because the handle may be stored |
| 623 | * in a named object and may not be actually deleted until much later. |
| 624 | */ |
| 625 | ddb_handle->common.flags &= ~AOPOBJ_DATA_VALID; |
Lin Ming | 3e08e2d | 2008-04-10 19:06:38 +0400 | [diff] [blame] | 626 | return_ACPI_STATUS(AE_OK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 627 | } |