1 /****************************************************************************** 2 * 3 * Module Name: dsinit - Object initialization namespace walk 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2021, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #include <contrib/dev/acpica/include/acpi.h> 153 #include <contrib/dev/acpica/include/accommon.h> 154 #include <contrib/dev/acpica/include/acdispat.h> 155 #include <contrib/dev/acpica/include/acnamesp.h> 156 #include <contrib/dev/acpica/include/actables.h> 157 #include <contrib/dev/acpica/include/acinterp.h> 158 159 #define _COMPONENT ACPI_DISPATCHER 160 ACPI_MODULE_NAME ("dsinit") 161 162 163 /* Local prototypes */ 164 165 static ACPI_STATUS 166 AcpiDsInitOneObject ( 167 ACPI_HANDLE ObjHandle, 168 UINT32 Level, 169 void *Context, 170 void **ReturnValue); 171 172 173 /******************************************************************************* 174 * 175 * FUNCTION: AcpiDsInitOneObject 176 * 177 * PARAMETERS: ObjHandle - Node for the object 178 * Level - Current nesting level 179 * Context - Points to a init info struct 180 * ReturnValue - Not used 181 * 182 * RETURN: Status 183 * 184 * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object 185 * within the namespace. 186 * 187 * Currently, the only objects that require initialization are: 188 * 1) Methods 189 * 2) Operation Regions 190 * 191 ******************************************************************************/ 192 193 static ACPI_STATUS 194 AcpiDsInitOneObject ( 195 ACPI_HANDLE ObjHandle, 196 UINT32 Level, 197 void *Context, 198 void **ReturnValue) 199 { 200 ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context; 201 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; 202 ACPI_STATUS Status; 203 ACPI_OPERAND_OBJECT *ObjDesc; 204 205 206 ACPI_FUNCTION_ENTRY (); 207 208 209 /* 210 * We are only interested in NS nodes owned by the table that 211 * was just loaded 212 */ 213 if (Node->OwnerId != Info->OwnerId) 214 { 215 return (AE_OK); 216 } 217 218 Info->ObjectCount++; 219 220 /* And even then, we are only interested in a few object types */ 221 222 switch (AcpiNsGetType (ObjHandle)) 223 { 224 case ACPI_TYPE_REGION: 225 226 Status = AcpiDsInitializeRegion (ObjHandle); 227 if (ACPI_FAILURE (Status)) 228 { 229 ACPI_EXCEPTION ((AE_INFO, Status, 230 "During Region initialization %p [%4.4s]", 231 ObjHandle, AcpiUtGetNodeName (ObjHandle))); 232 } 233 234 Info->OpRegionCount++; 235 break; 236 237 case ACPI_TYPE_METHOD: 238 /* 239 * Auto-serialization support. We will examine each method that is 240 * NotSerialized to determine if it creates any Named objects. If 241 * it does, it will be marked serialized to prevent problems if 242 * the method is entered by two or more threads and an attempt is 243 * made to create the same named object twice -- which results in 244 * an AE_ALREADY_EXISTS exception and method abort. 245 */ 246 Info->MethodCount++; 247 ObjDesc = AcpiNsGetAttachedObject (Node); 248 if (!ObjDesc) 249 { 250 break; 251 } 252 253 /* Ignore if already serialized */ 254 255 if (ObjDesc->Method.InfoFlags & ACPI_METHOD_SERIALIZED) 256 { 257 Info->SerialMethodCount++; 258 break; 259 } 260 261 if (AcpiGbl_AutoSerializeMethods) 262 { 263 /* Parse/scan method and serialize it if necessary */ 264 265 AcpiDsAutoSerializeMethod (Node, ObjDesc); 266 if (ObjDesc->Method.InfoFlags & ACPI_METHOD_SERIALIZED) 267 { 268 /* Method was just converted to Serialized */ 269 270 Info->SerialMethodCount++; 271 Info->SerializedMethodCount++; 272 break; 273 } 274 } 275 276 Info->NonSerialMethodCount++; 277 break; 278 279 case ACPI_TYPE_DEVICE: 280 281 Info->DeviceCount++; 282 break; 283 284 default: 285 286 break; 287 } 288 289 /* 290 * We ignore errors from above, and always return OK, since 291 * we don't want to abort the walk on a single error. 292 */ 293 return (AE_OK); 294 } 295 296 297 /******************************************************************************* 298 * 299 * FUNCTION: AcpiDsInitializeObjects 300 * 301 * PARAMETERS: TableDesc - Descriptor for parent ACPI table 302 * StartNode - Root of subtree to be initialized. 303 * 304 * RETURN: Status 305 * 306 * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any 307 * necessary initialization on the objects found therein 308 * 309 ******************************************************************************/ 310 311 ACPI_STATUS 312 AcpiDsInitializeObjects ( 313 UINT32 TableIndex, 314 ACPI_NAMESPACE_NODE *StartNode) 315 { 316 ACPI_STATUS Status; 317 ACPI_INIT_WALK_INFO Info; 318 ACPI_TABLE_HEADER *Table; 319 ACPI_OWNER_ID OwnerId; 320 321 322 ACPI_FUNCTION_TRACE (DsInitializeObjects); 323 324 325 Status = AcpiTbGetOwnerId (TableIndex, &OwnerId); 326 if (ACPI_FAILURE (Status)) 327 { 328 return_ACPI_STATUS (Status); 329 } 330 331 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 332 "**** Starting initialization of namespace objects ****\n")); 333 334 /* Set all init info to zero */ 335 336 memset (&Info, 0, sizeof (ACPI_INIT_WALK_INFO)); 337 338 Info.OwnerId = OwnerId; 339 Info.TableIndex = TableIndex; 340 341 /* Walk entire namespace from the supplied root */ 342 343 /* 344 * We don't use AcpiWalkNamespace since we do not want to acquire 345 * the namespace reader lock. 346 */ 347 Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, StartNode, ACPI_UINT32_MAX, 348 ACPI_NS_WALK_NO_UNLOCK, AcpiDsInitOneObject, NULL, &Info, NULL); 349 if (ACPI_FAILURE (Status)) 350 { 351 ACPI_EXCEPTION ((AE_INFO, Status, "During WalkNamespace")); 352 } 353 354 Status = AcpiGetTableByIndex (TableIndex, &Table); 355 if (ACPI_FAILURE (Status)) 356 { 357 return_ACPI_STATUS (Status); 358 } 359 360 /* DSDT is always the first AML table */ 361 362 if (ACPI_COMPARE_NAMESEG (Table->Signature, ACPI_SIG_DSDT)) 363 { 364 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, 365 "\nACPI table initialization:\n")); 366 } 367 368 /* Summary of objects initialized */ 369 370 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, 371 "Table [%4.4s: %-8.8s] (id %.2X) - %4u Objects with %3u Devices, " 372 "%3u Regions, %4u Methods (%u/%u/%u Serial/Non/Cvt)\n", 373 Table->Signature, Table->OemTableId, OwnerId, Info.ObjectCount, 374 Info.DeviceCount,Info.OpRegionCount, Info.MethodCount, 375 Info.SerialMethodCount, Info.NonSerialMethodCount, 376 Info.SerializedMethodCount)); 377 378 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "%u Methods, %u Regions\n", 379 Info.MethodCount, Info.OpRegionCount)); 380 381 return_ACPI_STATUS (AE_OK); 382 } 383