1a159c266SJung-uk Kim /****************************************************************************** 2a159c266SJung-uk Kim * 3a159c266SJung-uk Kim * Module Name: nsinit - namespace initialization 4a159c266SJung-uk Kim * 5a159c266SJung-uk Kim *****************************************************************************/ 6a159c266SJung-uk Kim 70d84335fSJung-uk Kim /****************************************************************************** 80d84335fSJung-uk Kim * 90d84335fSJung-uk Kim * 1. Copyright Notice 100d84335fSJung-uk Kim * 11*804fe266SJung-uk Kim * Some or all of this work - Copyright (c) 1999 - 2024, Intel Corp. 12a159c266SJung-uk Kim * All rights reserved. 13a159c266SJung-uk Kim * 140d84335fSJung-uk Kim * 2. License 150d84335fSJung-uk Kim * 160d84335fSJung-uk Kim * 2.1. This is your license from Intel Corp. under its intellectual property 170d84335fSJung-uk Kim * rights. You may have additional license terms from the party that provided 180d84335fSJung-uk Kim * you this software, covering your right to use that party's intellectual 190d84335fSJung-uk Kim * property rights. 200d84335fSJung-uk Kim * 210d84335fSJung-uk Kim * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 220d84335fSJung-uk Kim * copy of the source code appearing in this file ("Covered Code") an 230d84335fSJung-uk Kim * irrevocable, perpetual, worldwide license under Intel's copyrights in the 240d84335fSJung-uk Kim * base code distributed originally by Intel ("Original Intel Code") to copy, 250d84335fSJung-uk Kim * make derivatives, distribute, use and display any portion of the Covered 260d84335fSJung-uk Kim * Code in any form, with the right to sublicense such rights; and 270d84335fSJung-uk Kim * 280d84335fSJung-uk Kim * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 290d84335fSJung-uk Kim * license (with the right to sublicense), under only those claims of Intel 300d84335fSJung-uk Kim * patents that are infringed by the Original Intel Code, to make, use, sell, 310d84335fSJung-uk Kim * offer to sell, and import the Covered Code and derivative works thereof 320d84335fSJung-uk Kim * solely to the minimum extent necessary to exercise the above copyright 330d84335fSJung-uk Kim * license, and in no event shall the patent license extend to any additions 340d84335fSJung-uk Kim * to or modifications of the Original Intel Code. No other license or right 350d84335fSJung-uk Kim * is granted directly or by implication, estoppel or otherwise; 360d84335fSJung-uk Kim * 370d84335fSJung-uk Kim * The above copyright and patent license is granted only if the following 380d84335fSJung-uk Kim * conditions are met: 390d84335fSJung-uk Kim * 400d84335fSJung-uk Kim * 3. Conditions 410d84335fSJung-uk Kim * 420d84335fSJung-uk Kim * 3.1. Redistribution of Source with Rights to Further Distribute Source. 430d84335fSJung-uk Kim * Redistribution of source code of any substantial portion of the Covered 440d84335fSJung-uk Kim * Code or modification with rights to further distribute source must include 450d84335fSJung-uk Kim * the above Copyright Notice, the above License, this list of Conditions, 460d84335fSJung-uk Kim * and the following Disclaimer and Export Compliance provision. In addition, 470d84335fSJung-uk Kim * Licensee must cause all Covered Code to which Licensee contributes to 480d84335fSJung-uk Kim * contain a file documenting the changes Licensee made to create that Covered 490d84335fSJung-uk Kim * Code and the date of any change. Licensee must include in that file the 500d84335fSJung-uk Kim * documentation of any changes made by any predecessor Licensee. Licensee 510d84335fSJung-uk Kim * must include a prominent statement that the modification is derived, 520d84335fSJung-uk Kim * directly or indirectly, from Original Intel Code. 530d84335fSJung-uk Kim * 540d84335fSJung-uk Kim * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 550d84335fSJung-uk Kim * Redistribution of source code of any substantial portion of the Covered 560d84335fSJung-uk Kim * Code or modification without rights to further distribute source must 570d84335fSJung-uk Kim * include the following Disclaimer and Export Compliance provision in the 580d84335fSJung-uk Kim * documentation and/or other materials provided with distribution. In 590d84335fSJung-uk Kim * addition, Licensee may not authorize further sublicense of source of any 600d84335fSJung-uk Kim * portion of the Covered Code, and must include terms to the effect that the 610d84335fSJung-uk Kim * license from Licensee to its licensee is limited to the intellectual 620d84335fSJung-uk Kim * property embodied in the software Licensee provides to its licensee, and 630d84335fSJung-uk Kim * not to intellectual property embodied in modifications its licensee may 640d84335fSJung-uk Kim * make. 650d84335fSJung-uk Kim * 660d84335fSJung-uk Kim * 3.3. Redistribution of Executable. Redistribution in executable form of any 670d84335fSJung-uk Kim * substantial portion of the Covered Code or modification must reproduce the 680d84335fSJung-uk Kim * above Copyright Notice, and the following Disclaimer and Export Compliance 690d84335fSJung-uk Kim * provision in the documentation and/or other materials provided with the 700d84335fSJung-uk Kim * distribution. 710d84335fSJung-uk Kim * 720d84335fSJung-uk Kim * 3.4. Intel retains all right, title, and interest in and to the Original 730d84335fSJung-uk Kim * Intel Code. 740d84335fSJung-uk Kim * 750d84335fSJung-uk Kim * 3.5. Neither the name Intel nor any other trademark owned or controlled by 760d84335fSJung-uk Kim * Intel shall be used in advertising or otherwise to promote the sale, use or 770d84335fSJung-uk Kim * other dealings in products derived from or relating to the Covered Code 780d84335fSJung-uk Kim * without prior written authorization from Intel. 790d84335fSJung-uk Kim * 800d84335fSJung-uk Kim * 4. Disclaimer and Export Compliance 810d84335fSJung-uk Kim * 820d84335fSJung-uk Kim * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 830d84335fSJung-uk Kim * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 840d84335fSJung-uk Kim * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 850d84335fSJung-uk Kim * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 860d84335fSJung-uk Kim * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 870d84335fSJung-uk Kim * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 880d84335fSJung-uk Kim * PARTICULAR PURPOSE. 890d84335fSJung-uk Kim * 900d84335fSJung-uk Kim * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 910d84335fSJung-uk Kim * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 920d84335fSJung-uk Kim * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 930d84335fSJung-uk Kim * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 940d84335fSJung-uk Kim * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 950d84335fSJung-uk Kim * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 960d84335fSJung-uk Kim * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 970d84335fSJung-uk Kim * LIMITED REMEDY. 980d84335fSJung-uk Kim * 990d84335fSJung-uk Kim * 4.3. Licensee shall not export, either directly or indirectly, any of this 1000d84335fSJung-uk Kim * software or system incorporating such software without first obtaining any 1010d84335fSJung-uk Kim * required license or other approval from the U. S. Department of Commerce or 1020d84335fSJung-uk Kim * any other agency or department of the United States Government. In the 1030d84335fSJung-uk Kim * event Licensee exports any such software from the United States or 1040d84335fSJung-uk Kim * re-exports any such software from a foreign destination, Licensee shall 1050d84335fSJung-uk Kim * ensure that the distribution and export/re-export of the software is in 1060d84335fSJung-uk Kim * compliance with all laws, regulations, orders, or other restrictions of the 1070d84335fSJung-uk Kim * U.S. Export Administration Regulations. Licensee agrees that neither it nor 1080d84335fSJung-uk Kim * any of its subsidiaries will export/re-export any technical data, process, 1090d84335fSJung-uk Kim * software, or service, directly or indirectly, to any country for which the 1100d84335fSJung-uk Kim * United States government or any agency thereof requires an export license, 1110d84335fSJung-uk Kim * other governmental approval, or letter of assurance, without first obtaining 1120d84335fSJung-uk Kim * such license, approval or letter. 1130d84335fSJung-uk Kim * 1140d84335fSJung-uk Kim ***************************************************************************** 1150d84335fSJung-uk Kim * 1160d84335fSJung-uk Kim * Alternatively, you may choose to be licensed under the terms of the 1170d84335fSJung-uk Kim * following license: 1180d84335fSJung-uk Kim * 119a159c266SJung-uk Kim * Redistribution and use in source and binary forms, with or without 120a159c266SJung-uk Kim * modification, are permitted provided that the following conditions 121a159c266SJung-uk Kim * are met: 122a159c266SJung-uk Kim * 1. Redistributions of source code must retain the above copyright 123a159c266SJung-uk Kim * notice, this list of conditions, and the following disclaimer, 124a159c266SJung-uk Kim * without modification. 125a159c266SJung-uk Kim * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126a159c266SJung-uk Kim * substantially similar to the "NO WARRANTY" disclaimer below 127a159c266SJung-uk Kim * ("Disclaimer") and any redistribution must be conditioned upon 128a159c266SJung-uk Kim * including a substantially similar Disclaimer requirement for further 129a159c266SJung-uk Kim * binary redistribution. 130a159c266SJung-uk Kim * 3. Neither the names of the above-listed copyright holders nor the names 131a159c266SJung-uk Kim * of any contributors may be used to endorse or promote products derived 132a159c266SJung-uk Kim * from this software without specific prior written permission. 133a159c266SJung-uk Kim * 1340d84335fSJung-uk Kim * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1350d84335fSJung-uk Kim * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1360d84335fSJung-uk Kim * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1370d84335fSJung-uk Kim * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 1380d84335fSJung-uk Kim * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 1390d84335fSJung-uk Kim * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 1400d84335fSJung-uk Kim * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 1410d84335fSJung-uk Kim * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 1420d84335fSJung-uk Kim * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 1430d84335fSJung-uk Kim * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 1440d84335fSJung-uk Kim * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 1450d84335fSJung-uk Kim * 1460d84335fSJung-uk Kim * Alternatively, you may choose to be licensed under the terms of the 147a159c266SJung-uk Kim * GNU General Public License ("GPL") version 2 as published by the Free 148a159c266SJung-uk Kim * Software Foundation. 149a159c266SJung-uk Kim * 1500d84335fSJung-uk Kim *****************************************************************************/ 151a159c266SJung-uk Kim 152a159c266SJung-uk Kim #include <contrib/dev/acpica/include/acpi.h> 153a159c266SJung-uk Kim #include <contrib/dev/acpica/include/accommon.h> 154a159c266SJung-uk Kim #include <contrib/dev/acpica/include/acnamesp.h> 155a159c266SJung-uk Kim #include <contrib/dev/acpica/include/acdispat.h> 156a159c266SJung-uk Kim #include <contrib/dev/acpica/include/acinterp.h> 157f8146b88SJung-uk Kim #include <contrib/dev/acpica/include/acevents.h> 158a159c266SJung-uk Kim 159a159c266SJung-uk Kim #define _COMPONENT ACPI_NAMESPACE 160a159c266SJung-uk Kim ACPI_MODULE_NAME ("nsinit") 161a159c266SJung-uk Kim 162a159c266SJung-uk Kim /* Local prototypes */ 163a159c266SJung-uk Kim 164a159c266SJung-uk Kim static ACPI_STATUS 165a159c266SJung-uk Kim AcpiNsInitOneObject ( 166a159c266SJung-uk Kim ACPI_HANDLE ObjHandle, 167a159c266SJung-uk Kim UINT32 Level, 168a159c266SJung-uk Kim void *Context, 169a159c266SJung-uk Kim void **ReturnValue); 170a159c266SJung-uk Kim 171a159c266SJung-uk Kim static ACPI_STATUS 172a159c266SJung-uk Kim AcpiNsInitOneDevice ( 173a159c266SJung-uk Kim ACPI_HANDLE ObjHandle, 174a159c266SJung-uk Kim UINT32 NestingLevel, 175a159c266SJung-uk Kim void *Context, 176a159c266SJung-uk Kim void **ReturnValue); 177a159c266SJung-uk Kim 178a159c266SJung-uk Kim static ACPI_STATUS 179a159c266SJung-uk Kim AcpiNsFindIniMethods ( 180a159c266SJung-uk Kim ACPI_HANDLE ObjHandle, 181a159c266SJung-uk Kim UINT32 NestingLevel, 182a159c266SJung-uk Kim void *Context, 183a159c266SJung-uk Kim void **ReturnValue); 184a159c266SJung-uk Kim 185a159c266SJung-uk Kim 186a159c266SJung-uk Kim /******************************************************************************* 187a159c266SJung-uk Kim * 188a159c266SJung-uk Kim * FUNCTION: AcpiNsInitializeObjects 189a159c266SJung-uk Kim * 190a159c266SJung-uk Kim * PARAMETERS: None 191a159c266SJung-uk Kim * 192a159c266SJung-uk Kim * RETURN: Status 193a159c266SJung-uk Kim * 194a159c266SJung-uk Kim * DESCRIPTION: Walk the entire namespace and perform any necessary 195a159c266SJung-uk Kim * initialization on the objects found therein 196a159c266SJung-uk Kim * 197a159c266SJung-uk Kim ******************************************************************************/ 198a159c266SJung-uk Kim 199a159c266SJung-uk Kim ACPI_STATUS 200a159c266SJung-uk Kim AcpiNsInitializeObjects ( 201a159c266SJung-uk Kim void) 202a159c266SJung-uk Kim { 203a159c266SJung-uk Kim ACPI_STATUS Status; 204a159c266SJung-uk Kim ACPI_INIT_WALK_INFO Info; 205a159c266SJung-uk Kim 206a159c266SJung-uk Kim 207a159c266SJung-uk Kim ACPI_FUNCTION_TRACE (NsInitializeObjects); 208a159c266SJung-uk Kim 209a159c266SJung-uk Kim 210f8146b88SJung-uk Kim ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 211f8146b88SJung-uk Kim "[Init] Completing Initialization of ACPI Objects\n")); 212a159c266SJung-uk Kim ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 213a159c266SJung-uk Kim "**** Starting initialization of namespace objects ****\n")); 214a159c266SJung-uk Kim ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, 21537d7a5bcSJung-uk Kim "Final data object initialization: ")); 216a159c266SJung-uk Kim 21737d7a5bcSJung-uk Kim /* Clear the info block */ 218a159c266SJung-uk Kim 2195ef50723SJung-uk Kim memset (&Info, 0, sizeof (ACPI_INIT_WALK_INFO)); 220a159c266SJung-uk Kim 221a159c266SJung-uk Kim /* Walk entire namespace from the supplied root */ 222a159c266SJung-uk Kim 22337d7a5bcSJung-uk Kim /* 22437d7a5bcSJung-uk Kim * TBD: will become ACPI_TYPE_PACKAGE as this type object 22537d7a5bcSJung-uk Kim * is now the only one that supports deferred initialization 22637d7a5bcSJung-uk Kim * (forward references). 22737d7a5bcSJung-uk Kim */ 228a159c266SJung-uk Kim Status = AcpiWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, 22937d7a5bcSJung-uk Kim ACPI_UINT32_MAX, AcpiNsInitOneObject, NULL, &Info, NULL); 230a159c266SJung-uk Kim if (ACPI_FAILURE (Status)) 231a159c266SJung-uk Kim { 232a159c266SJung-uk Kim ACPI_EXCEPTION ((AE_INFO, Status, "During WalkNamespace")); 233a159c266SJung-uk Kim } 234a159c266SJung-uk Kim 235a159c266SJung-uk Kim ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, 23637d7a5bcSJung-uk Kim "Namespace contains %u (0x%X) objects\n", 23737d7a5bcSJung-uk Kim Info.ObjectCount, 23837d7a5bcSJung-uk Kim Info.ObjectCount)); 239a159c266SJung-uk Kim 240a159c266SJung-uk Kim ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 241313a0c13SJung-uk Kim "%u Control Methods found\n%u Op Regions found\n", 242313a0c13SJung-uk Kim Info.MethodCount, Info.OpRegionCount)); 243a159c266SJung-uk Kim 244a159c266SJung-uk Kim return_ACPI_STATUS (AE_OK); 245a159c266SJung-uk Kim } 246a159c266SJung-uk Kim 247a159c266SJung-uk Kim 248a159c266SJung-uk Kim /******************************************************************************* 249a159c266SJung-uk Kim * 250a159c266SJung-uk Kim * FUNCTION: AcpiNsInitializeDevices 251a159c266SJung-uk Kim * 252a159c266SJung-uk Kim * PARAMETERS: None 253a159c266SJung-uk Kim * 254a159c266SJung-uk Kim * RETURN: ACPI_STATUS 255a159c266SJung-uk Kim * 256a159c266SJung-uk Kim * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices. 257a159c266SJung-uk Kim * This means running _INI on all present devices. 258a159c266SJung-uk Kim * 259a159c266SJung-uk Kim * Note: We install PCI config space handler on region access, 260a159c266SJung-uk Kim * not here. 261a159c266SJung-uk Kim * 262a159c266SJung-uk Kim ******************************************************************************/ 263a159c266SJung-uk Kim 264a159c266SJung-uk Kim ACPI_STATUS 265a159c266SJung-uk Kim AcpiNsInitializeDevices ( 266f8146b88SJung-uk Kim UINT32 Flags) 267a159c266SJung-uk Kim { 268f8146b88SJung-uk Kim ACPI_STATUS Status = AE_OK; 269a159c266SJung-uk Kim ACPI_DEVICE_WALK_INFO Info; 270f8146b88SJung-uk Kim ACPI_HANDLE Handle; 271a159c266SJung-uk Kim 272a159c266SJung-uk Kim 273a159c266SJung-uk Kim ACPI_FUNCTION_TRACE (NsInitializeDevices); 274a159c266SJung-uk Kim 275a159c266SJung-uk Kim 276f8146b88SJung-uk Kim if (!(Flags & ACPI_NO_DEVICE_INIT)) 277f8146b88SJung-uk Kim { 278f8146b88SJung-uk Kim ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 279f8146b88SJung-uk Kim "[Init] Initializing ACPI Devices\n")); 280f8146b88SJung-uk Kim 281a159c266SJung-uk Kim /* Init counters */ 282a159c266SJung-uk Kim 283a159c266SJung-uk Kim Info.DeviceCount = 0; 284a159c266SJung-uk Kim Info.Num_STA = 0; 285a159c266SJung-uk Kim Info.Num_INI = 0; 286a159c266SJung-uk Kim 287a159c266SJung-uk Kim ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, 288a159c266SJung-uk Kim "Initializing Device/Processor/Thermal objects " 289efcc2a30SJung-uk Kim "and executing _INI/_STA methods:\n")); 290a159c266SJung-uk Kim 291a159c266SJung-uk Kim /* Tree analysis: find all subtrees that contain _INI methods */ 292a159c266SJung-uk Kim 293a159c266SJung-uk Kim Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, 294a159c266SJung-uk Kim ACPI_UINT32_MAX, FALSE, AcpiNsFindIniMethods, NULL, &Info, NULL); 295a159c266SJung-uk Kim if (ACPI_FAILURE (Status)) 296a159c266SJung-uk Kim { 297a159c266SJung-uk Kim goto ErrorExit; 298a159c266SJung-uk Kim } 299a159c266SJung-uk Kim 300a159c266SJung-uk Kim /* Allocate the evaluation information block */ 301a159c266SJung-uk Kim 302a159c266SJung-uk Kim Info.EvaluateInfo = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO)); 303a159c266SJung-uk Kim if (!Info.EvaluateInfo) 304a159c266SJung-uk Kim { 305a159c266SJung-uk Kim Status = AE_NO_MEMORY; 306a159c266SJung-uk Kim goto ErrorExit; 307a159c266SJung-uk Kim } 308a159c266SJung-uk Kim 309a159c266SJung-uk Kim /* 310f8146b88SJung-uk Kim * Execute the "global" _INI method that may appear at the root. 311f8146b88SJung-uk Kim * This support is provided for Windows compatibility (Vista+) and 312f8146b88SJung-uk Kim * is not part of the ACPI specification. 313a159c266SJung-uk Kim */ 314a159c266SJung-uk Kim Info.EvaluateInfo->PrefixNode = AcpiGbl_RootNode; 315895f26a9SJung-uk Kim Info.EvaluateInfo->RelativePathname = METHOD_NAME__INI; 316a159c266SJung-uk Kim Info.EvaluateInfo->Parameters = NULL; 317a159c266SJung-uk Kim Info.EvaluateInfo->Flags = ACPI_IGNORE_RETURN_VALUE; 318a159c266SJung-uk Kim 319a159c266SJung-uk Kim Status = AcpiNsEvaluate (Info.EvaluateInfo); 320a159c266SJung-uk Kim if (ACPI_SUCCESS (Status)) 321a159c266SJung-uk Kim { 322a159c266SJung-uk Kim Info.Num_INI++; 323a159c266SJung-uk Kim } 324a159c266SJung-uk Kim 325f8146b88SJung-uk Kim /* 326f8146b88SJung-uk Kim * Execute \_SB._INI. 327f8146b88SJung-uk Kim * There appears to be a strict order requirement for \_SB._INI, 328f8146b88SJung-uk Kim * which should be evaluated before any _REG evaluations. 329f8146b88SJung-uk Kim */ 330f8146b88SJung-uk Kim Status = AcpiGetHandle (NULL, "\\_SB", &Handle); 331f8146b88SJung-uk Kim if (ACPI_SUCCESS (Status)) 332f8146b88SJung-uk Kim { 333f8146b88SJung-uk Kim memset (Info.EvaluateInfo, 0, sizeof (ACPI_EVALUATE_INFO)); 334f8146b88SJung-uk Kim Info.EvaluateInfo->PrefixNode = Handle; 335f8146b88SJung-uk Kim Info.EvaluateInfo->RelativePathname = METHOD_NAME__INI; 336f8146b88SJung-uk Kim Info.EvaluateInfo->Parameters = NULL; 337f8146b88SJung-uk Kim Info.EvaluateInfo->Flags = ACPI_IGNORE_RETURN_VALUE; 338f8146b88SJung-uk Kim 339f8146b88SJung-uk Kim Status = AcpiNsEvaluate (Info.EvaluateInfo); 340f8146b88SJung-uk Kim if (ACPI_SUCCESS (Status)) 341f8146b88SJung-uk Kim { 342f8146b88SJung-uk Kim Info.Num_INI++; 343f8146b88SJung-uk Kim } 344f8146b88SJung-uk Kim } 345f8146b88SJung-uk Kim } 346f8146b88SJung-uk Kim 347f8146b88SJung-uk Kim /* 348f8146b88SJung-uk Kim * Run all _REG methods 349f8146b88SJung-uk Kim * 350f8146b88SJung-uk Kim * Note: Any objects accessed by the _REG methods will be automatically 351f8146b88SJung-uk Kim * initialized, even if they contain executable AML (see the call to 352f8146b88SJung-uk Kim * AcpiNsInitializeObjects below). 353f8146b88SJung-uk Kim * 354f8146b88SJung-uk Kim * Note: According to the ACPI specification, we actually needn't execute 355f8146b88SJung-uk Kim * _REG for SystemMemory/SystemIo operation regions, but for PCI_Config 356f8146b88SJung-uk Kim * operation regions, it is required to evaluate _REG for those on a PCI 357f8146b88SJung-uk Kim * root bus that doesn't contain _BBN object. So this code is kept here 358f8146b88SJung-uk Kim * in order not to break things. 359f8146b88SJung-uk Kim */ 360f8146b88SJung-uk Kim if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT)) 361f8146b88SJung-uk Kim { 362f8146b88SJung-uk Kim ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 363f8146b88SJung-uk Kim "[Init] Executing _REG OpRegion methods\n")); 364f8146b88SJung-uk Kim 365f8146b88SJung-uk Kim Status = AcpiEvInitializeOpRegions (); 366f8146b88SJung-uk Kim if (ACPI_FAILURE (Status)) 367f8146b88SJung-uk Kim { 368f8146b88SJung-uk Kim goto ErrorExit; 369f8146b88SJung-uk Kim } 370f8146b88SJung-uk Kim } 371f8146b88SJung-uk Kim 372f8146b88SJung-uk Kim if (!(Flags & ACPI_NO_DEVICE_INIT)) 373f8146b88SJung-uk Kim { 374a159c266SJung-uk Kim /* Walk namespace to execute all _INIs on present devices */ 375a159c266SJung-uk Kim 376a159c266SJung-uk Kim Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, 377a159c266SJung-uk Kim ACPI_UINT32_MAX, FALSE, AcpiNsInitOneDevice, NULL, &Info, NULL); 378a159c266SJung-uk Kim 379a159c266SJung-uk Kim /* 380a159c266SJung-uk Kim * Any _OSI requests should be completed by now. If the BIOS has 381a159c266SJung-uk Kim * requested any Windows OSI strings, we will always truncate 382a159c266SJung-uk Kim * I/O addresses to 16 bits -- for Windows compatibility. 383a159c266SJung-uk Kim */ 384a159c266SJung-uk Kim if (AcpiGbl_OsiData >= ACPI_OSI_WIN_2000) 385a159c266SJung-uk Kim { 386a159c266SJung-uk Kim AcpiGbl_TruncateIoAddresses = TRUE; 387a159c266SJung-uk Kim } 388a159c266SJung-uk Kim 389a159c266SJung-uk Kim ACPI_FREE (Info.EvaluateInfo); 390a159c266SJung-uk Kim if (ACPI_FAILURE (Status)) 391a159c266SJung-uk Kim { 392a159c266SJung-uk Kim goto ErrorExit; 393a159c266SJung-uk Kim } 394a159c266SJung-uk Kim 395a159c266SJung-uk Kim ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, 396efcc2a30SJung-uk Kim " Executed %u _INI methods requiring %u _STA executions " 397a159c266SJung-uk Kim "(examined %u objects)\n", 398a159c266SJung-uk Kim Info.Num_INI, Info.Num_STA, Info.DeviceCount)); 399f8146b88SJung-uk Kim } 400a159c266SJung-uk Kim 401a159c266SJung-uk Kim return_ACPI_STATUS (Status); 402a159c266SJung-uk Kim 403a159c266SJung-uk Kim 404a159c266SJung-uk Kim ErrorExit: 405a159c266SJung-uk Kim ACPI_EXCEPTION ((AE_INFO, Status, "During device initialization")); 406a159c266SJung-uk Kim return_ACPI_STATUS (Status); 407a159c266SJung-uk Kim } 408a159c266SJung-uk Kim 409a159c266SJung-uk Kim 410a159c266SJung-uk Kim /******************************************************************************* 411a159c266SJung-uk Kim * 412e7dfa7d8SJung-uk Kim * FUNCTION: AcpiNsInitOnePackage 413e7dfa7d8SJung-uk Kim * 414e7dfa7d8SJung-uk Kim * PARAMETERS: ObjHandle - Node 415e7dfa7d8SJung-uk Kim * Level - Current nesting level 416e7dfa7d8SJung-uk Kim * Context - Not used 417e7dfa7d8SJung-uk Kim * ReturnValue - Not used 418e7dfa7d8SJung-uk Kim * 419e7dfa7d8SJung-uk Kim * RETURN: Status 420e7dfa7d8SJung-uk Kim * 421e7dfa7d8SJung-uk Kim * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every package 422e7dfa7d8SJung-uk Kim * within the namespace. Used during dynamic load of an SSDT. 423e7dfa7d8SJung-uk Kim * 424e7dfa7d8SJung-uk Kim ******************************************************************************/ 425e7dfa7d8SJung-uk Kim 426e7dfa7d8SJung-uk Kim ACPI_STATUS 427e7dfa7d8SJung-uk Kim AcpiNsInitOnePackage ( 428e7dfa7d8SJung-uk Kim ACPI_HANDLE ObjHandle, 429e7dfa7d8SJung-uk Kim UINT32 Level, 430e7dfa7d8SJung-uk Kim void *Context, 431e7dfa7d8SJung-uk Kim void **ReturnValue) 432e7dfa7d8SJung-uk Kim { 433e7dfa7d8SJung-uk Kim ACPI_STATUS Status; 434e7dfa7d8SJung-uk Kim ACPI_OPERAND_OBJECT *ObjDesc; 435e7dfa7d8SJung-uk Kim ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; 436e7dfa7d8SJung-uk Kim 437e7dfa7d8SJung-uk Kim 438e7dfa7d8SJung-uk Kim ObjDesc = AcpiNsGetAttachedObject (Node); 439e7dfa7d8SJung-uk Kim if (!ObjDesc) 440e7dfa7d8SJung-uk Kim { 441e7dfa7d8SJung-uk Kim return (AE_OK); 442e7dfa7d8SJung-uk Kim } 443e7dfa7d8SJung-uk Kim 444e7dfa7d8SJung-uk Kim /* Exit if package is already initialized */ 445e7dfa7d8SJung-uk Kim 446e7dfa7d8SJung-uk Kim if (ObjDesc->Package.Flags & AOPOBJ_DATA_VALID) 447e7dfa7d8SJung-uk Kim { 448e7dfa7d8SJung-uk Kim return (AE_OK); 449e7dfa7d8SJung-uk Kim } 450e7dfa7d8SJung-uk Kim 451e7dfa7d8SJung-uk Kim Status = AcpiDsGetPackageArguments (ObjDesc); 452e7dfa7d8SJung-uk Kim if (ACPI_FAILURE (Status)) 453e7dfa7d8SJung-uk Kim { 454e7dfa7d8SJung-uk Kim return (AE_OK); 455e7dfa7d8SJung-uk Kim } 456e7dfa7d8SJung-uk Kim 457e7dfa7d8SJung-uk Kim Status = AcpiUtWalkPackageTree (ObjDesc, NULL, AcpiDsInitPackageElement, 458e7dfa7d8SJung-uk Kim NULL); 459e7dfa7d8SJung-uk Kim if (ACPI_FAILURE (Status)) 460e7dfa7d8SJung-uk Kim { 461e7dfa7d8SJung-uk Kim return (AE_OK); 462e7dfa7d8SJung-uk Kim } 463e7dfa7d8SJung-uk Kim 464e7dfa7d8SJung-uk Kim ObjDesc->Package.Flags |= AOPOBJ_DATA_VALID; 465e7dfa7d8SJung-uk Kim return (AE_OK); 466e7dfa7d8SJung-uk Kim } 467e7dfa7d8SJung-uk Kim 468e7dfa7d8SJung-uk Kim 469e7dfa7d8SJung-uk Kim /******************************************************************************* 470e7dfa7d8SJung-uk Kim * 471a159c266SJung-uk Kim * FUNCTION: AcpiNsInitOneObject 472a159c266SJung-uk Kim * 473a159c266SJung-uk Kim * PARAMETERS: ObjHandle - Node 474a159c266SJung-uk Kim * Level - Current nesting level 475a159c266SJung-uk Kim * Context - Points to a init info struct 476a159c266SJung-uk Kim * ReturnValue - Not used 477a159c266SJung-uk Kim * 478a159c266SJung-uk Kim * RETURN: Status 479a159c266SJung-uk Kim * 480a159c266SJung-uk Kim * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object 481a159c266SJung-uk Kim * within the namespace. 482a159c266SJung-uk Kim * 483a159c266SJung-uk Kim * Currently, the only objects that require initialization are: 484a159c266SJung-uk Kim * 1) Methods 485a159c266SJung-uk Kim * 2) Op Regions 486a159c266SJung-uk Kim * 487a159c266SJung-uk Kim ******************************************************************************/ 488a159c266SJung-uk Kim 489a159c266SJung-uk Kim static ACPI_STATUS 490a159c266SJung-uk Kim AcpiNsInitOneObject ( 491a159c266SJung-uk Kim ACPI_HANDLE ObjHandle, 492a159c266SJung-uk Kim UINT32 Level, 493a159c266SJung-uk Kim void *Context, 494a159c266SJung-uk Kim void **ReturnValue) 495a159c266SJung-uk Kim { 496a159c266SJung-uk Kim ACPI_OBJECT_TYPE Type; 497a159c266SJung-uk Kim ACPI_STATUS Status = AE_OK; 498a159c266SJung-uk Kim ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context; 499a159c266SJung-uk Kim ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; 500a159c266SJung-uk Kim ACPI_OPERAND_OBJECT *ObjDesc; 501a159c266SJung-uk Kim 502a159c266SJung-uk Kim 503a159c266SJung-uk Kim ACPI_FUNCTION_NAME (NsInitOneObject); 504a159c266SJung-uk Kim 505a159c266SJung-uk Kim 506a159c266SJung-uk Kim Info->ObjectCount++; 507a159c266SJung-uk Kim 508a159c266SJung-uk Kim /* And even then, we are only interested in a few object types */ 509a159c266SJung-uk Kim 510a159c266SJung-uk Kim Type = AcpiNsGetType (ObjHandle); 511a159c266SJung-uk Kim ObjDesc = AcpiNsGetAttachedObject (Node); 512a159c266SJung-uk Kim if (!ObjDesc) 513a159c266SJung-uk Kim { 514a159c266SJung-uk Kim return (AE_OK); 515a159c266SJung-uk Kim } 516a159c266SJung-uk Kim 517a159c266SJung-uk Kim /* Increment counters for object types we are looking for */ 518a159c266SJung-uk Kim 519a159c266SJung-uk Kim switch (Type) 520a159c266SJung-uk Kim { 521a159c266SJung-uk Kim case ACPI_TYPE_REGION: 522a9d8d09cSJung-uk Kim 523a159c266SJung-uk Kim Info->OpRegionCount++; 524a159c266SJung-uk Kim break; 525a159c266SJung-uk Kim 526a159c266SJung-uk Kim case ACPI_TYPE_BUFFER_FIELD: 527a9d8d09cSJung-uk Kim 528a159c266SJung-uk Kim Info->FieldCount++; 529a159c266SJung-uk Kim break; 530a159c266SJung-uk Kim 531a159c266SJung-uk Kim case ACPI_TYPE_LOCAL_BANK_FIELD: 532a9d8d09cSJung-uk Kim 533a159c266SJung-uk Kim Info->FieldCount++; 534a159c266SJung-uk Kim break; 535a159c266SJung-uk Kim 536a159c266SJung-uk Kim case ACPI_TYPE_BUFFER: 537a9d8d09cSJung-uk Kim 538a159c266SJung-uk Kim Info->BufferCount++; 539a159c266SJung-uk Kim break; 540a159c266SJung-uk Kim 541a159c266SJung-uk Kim case ACPI_TYPE_PACKAGE: 542a9d8d09cSJung-uk Kim 543a159c266SJung-uk Kim Info->PackageCount++; 544a159c266SJung-uk Kim break; 545a159c266SJung-uk Kim 546a159c266SJung-uk Kim default: 547a159c266SJung-uk Kim 548a159c266SJung-uk Kim /* No init required, just exit now */ 549a9d8d09cSJung-uk Kim 550a159c266SJung-uk Kim return (AE_OK); 551a159c266SJung-uk Kim } 552a159c266SJung-uk Kim 553a159c266SJung-uk Kim /* If the object is already initialized, nothing else to do */ 554a159c266SJung-uk Kim 555a159c266SJung-uk Kim if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID) 556a159c266SJung-uk Kim { 557a159c266SJung-uk Kim return (AE_OK); 558a159c266SJung-uk Kim } 559a159c266SJung-uk Kim 560a159c266SJung-uk Kim /* Must lock the interpreter before executing AML code */ 561a159c266SJung-uk Kim 562a159c266SJung-uk Kim AcpiExEnterInterpreter (); 563a159c266SJung-uk Kim 564a159c266SJung-uk Kim /* 56537d7a5bcSJung-uk Kim * Only initialization of Package objects can be deferred, in order 56637d7a5bcSJung-uk Kim * to support forward references. 567a159c266SJung-uk Kim */ 568a159c266SJung-uk Kim switch (Type) 569a159c266SJung-uk Kim { 5702e578044SJung-uk Kim case ACPI_TYPE_LOCAL_BANK_FIELD: 57156a6dee6SJung-uk Kim 57237d7a5bcSJung-uk Kim /* TBD: BankFields do not require deferred init, remove this code */ 57337d7a5bcSJung-uk Kim 574a159c266SJung-uk Kim Info->FieldInit++; 575a159c266SJung-uk Kim Status = AcpiDsGetBankFieldArguments (ObjDesc); 576a159c266SJung-uk Kim break; 577a159c266SJung-uk Kim 578a159c266SJung-uk Kim case ACPI_TYPE_PACKAGE: 579a159c266SJung-uk Kim 580e7dfa7d8SJung-uk Kim /* Complete the initialization/resolution of the package object */ 581e7dfa7d8SJung-uk Kim 582a159c266SJung-uk Kim Info->PackageInit++; 583e7dfa7d8SJung-uk Kim Status = AcpiNsInitOnePackage (ObjHandle, Level, NULL, NULL); 584a159c266SJung-uk Kim break; 585a159c266SJung-uk Kim 586a159c266SJung-uk Kim default: 587a9d8d09cSJung-uk Kim 58837d7a5bcSJung-uk Kim /* No other types should get here */ 589a9d8d09cSJung-uk Kim 59037d7a5bcSJung-uk Kim Status = AE_TYPE; 59137d7a5bcSJung-uk Kim ACPI_EXCEPTION ((AE_INFO, Status, 59237d7a5bcSJung-uk Kim "Opcode is not deferred [%4.4s] (%s)", 59337d7a5bcSJung-uk Kim AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Type))); 594a159c266SJung-uk Kim break; 595a159c266SJung-uk Kim } 596a159c266SJung-uk Kim 597a159c266SJung-uk Kim if (ACPI_FAILURE (Status)) 598a159c266SJung-uk Kim { 599a159c266SJung-uk Kim ACPI_EXCEPTION ((AE_INFO, Status, 600a159c266SJung-uk Kim "Could not execute arguments for [%4.4s] (%s)", 601a159c266SJung-uk Kim AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Type))); 602a159c266SJung-uk Kim } 603a159c266SJung-uk Kim 604a159c266SJung-uk Kim /* 605a159c266SJung-uk Kim * We ignore errors from above, and always return OK, since we don't want 606a159c266SJung-uk Kim * to abort the walk on any single error. 607a159c266SJung-uk Kim */ 608a159c266SJung-uk Kim AcpiExExitInterpreter (); 609a159c266SJung-uk Kim return (AE_OK); 610a159c266SJung-uk Kim } 611a159c266SJung-uk Kim 612a159c266SJung-uk Kim 613a159c266SJung-uk Kim /******************************************************************************* 614a159c266SJung-uk Kim * 615a159c266SJung-uk Kim * FUNCTION: AcpiNsFindIniMethods 616a159c266SJung-uk Kim * 617a159c266SJung-uk Kim * PARAMETERS: ACPI_WALK_CALLBACK 618a159c266SJung-uk Kim * 619a159c266SJung-uk Kim * RETURN: ACPI_STATUS 620a159c266SJung-uk Kim * 621a159c266SJung-uk Kim * DESCRIPTION: Called during namespace walk. Finds objects named _INI under 622a159c266SJung-uk Kim * device/processor/thermal objects, and marks the entire subtree 623a159c266SJung-uk Kim * with a SUBTREE_HAS_INI flag. This flag is used during the 624a159c266SJung-uk Kim * subsequent device initialization walk to avoid entire subtrees 625a159c266SJung-uk Kim * that do not contain an _INI. 626a159c266SJung-uk Kim * 627a159c266SJung-uk Kim ******************************************************************************/ 628a159c266SJung-uk Kim 629a159c266SJung-uk Kim static ACPI_STATUS 630a159c266SJung-uk Kim AcpiNsFindIniMethods ( 631a159c266SJung-uk Kim ACPI_HANDLE ObjHandle, 632a159c266SJung-uk Kim UINT32 NestingLevel, 633a159c266SJung-uk Kim void *Context, 634a159c266SJung-uk Kim void **ReturnValue) 635a159c266SJung-uk Kim { 636a159c266SJung-uk Kim ACPI_DEVICE_WALK_INFO *Info = ACPI_CAST_PTR (ACPI_DEVICE_WALK_INFO, Context); 637a159c266SJung-uk Kim ACPI_NAMESPACE_NODE *Node; 638a159c266SJung-uk Kim ACPI_NAMESPACE_NODE *ParentNode; 639a159c266SJung-uk Kim 640a159c266SJung-uk Kim 641a159c266SJung-uk Kim /* Keep count of device/processor/thermal objects */ 642a159c266SJung-uk Kim 643a159c266SJung-uk Kim Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle); 644a159c266SJung-uk Kim if ((Node->Type == ACPI_TYPE_DEVICE) || 645a159c266SJung-uk Kim (Node->Type == ACPI_TYPE_PROCESSOR) || 646a159c266SJung-uk Kim (Node->Type == ACPI_TYPE_THERMAL)) 647a159c266SJung-uk Kim { 648a159c266SJung-uk Kim Info->DeviceCount++; 649a159c266SJung-uk Kim return (AE_OK); 650a159c266SJung-uk Kim } 651a159c266SJung-uk Kim 652a159c266SJung-uk Kim /* We are only looking for methods named _INI */ 653a159c266SJung-uk Kim 654278f0de6SJung-uk Kim if (!ACPI_COMPARE_NAMESEG (Node->Name.Ascii, METHOD_NAME__INI)) 655a159c266SJung-uk Kim { 656a159c266SJung-uk Kim return (AE_OK); 657a159c266SJung-uk Kim } 658a159c266SJung-uk Kim 659a159c266SJung-uk Kim /* 660a159c266SJung-uk Kim * The only _INI methods that we care about are those that are 661a159c266SJung-uk Kim * present under Device, Processor, and Thermal objects. 662a159c266SJung-uk Kim */ 663a159c266SJung-uk Kim ParentNode = Node->Parent; 664a159c266SJung-uk Kim switch (ParentNode->Type) 665a159c266SJung-uk Kim { 666a159c266SJung-uk Kim case ACPI_TYPE_DEVICE: 667a159c266SJung-uk Kim case ACPI_TYPE_PROCESSOR: 668a159c266SJung-uk Kim case ACPI_TYPE_THERMAL: 669a159c266SJung-uk Kim 670a159c266SJung-uk Kim /* Mark parent and bubble up the INI present flag to the root */ 671a159c266SJung-uk Kim 672a159c266SJung-uk Kim while (ParentNode) 673a159c266SJung-uk Kim { 674a159c266SJung-uk Kim ParentNode->Flags |= ANOBJ_SUBTREE_HAS_INI; 675a159c266SJung-uk Kim ParentNode = ParentNode->Parent; 676a159c266SJung-uk Kim } 677a159c266SJung-uk Kim break; 678a159c266SJung-uk Kim 679a159c266SJung-uk Kim default: 680a9d8d09cSJung-uk Kim 681a159c266SJung-uk Kim break; 682a159c266SJung-uk Kim } 683a159c266SJung-uk Kim 684a159c266SJung-uk Kim return (AE_OK); 685a159c266SJung-uk Kim } 686a159c266SJung-uk Kim 687a159c266SJung-uk Kim 688a159c266SJung-uk Kim /******************************************************************************* 689a159c266SJung-uk Kim * 690a159c266SJung-uk Kim * FUNCTION: AcpiNsInitOneDevice 691a159c266SJung-uk Kim * 692a159c266SJung-uk Kim * PARAMETERS: ACPI_WALK_CALLBACK 693a159c266SJung-uk Kim * 694a159c266SJung-uk Kim * RETURN: ACPI_STATUS 695a159c266SJung-uk Kim * 696a159c266SJung-uk Kim * DESCRIPTION: This is called once per device soon after ACPI is enabled 697a159c266SJung-uk Kim * to initialize each device. It determines if the device is 698a159c266SJung-uk Kim * present, and if so, calls _INI. 699a159c266SJung-uk Kim * 700a159c266SJung-uk Kim ******************************************************************************/ 701a159c266SJung-uk Kim 702a159c266SJung-uk Kim static ACPI_STATUS 703a159c266SJung-uk Kim AcpiNsInitOneDevice ( 704a159c266SJung-uk Kim ACPI_HANDLE ObjHandle, 705a159c266SJung-uk Kim UINT32 NestingLevel, 706a159c266SJung-uk Kim void *Context, 707a159c266SJung-uk Kim void **ReturnValue) 708a159c266SJung-uk Kim { 709a159c266SJung-uk Kim ACPI_DEVICE_WALK_INFO *WalkInfo = ACPI_CAST_PTR (ACPI_DEVICE_WALK_INFO, Context); 710a159c266SJung-uk Kim ACPI_EVALUATE_INFO *Info = WalkInfo->EvaluateInfo; 711a159c266SJung-uk Kim UINT32 Flags; 712a159c266SJung-uk Kim ACPI_STATUS Status; 713a159c266SJung-uk Kim ACPI_NAMESPACE_NODE *DeviceNode; 714a159c266SJung-uk Kim 715a159c266SJung-uk Kim 716a159c266SJung-uk Kim ACPI_FUNCTION_TRACE (NsInitOneDevice); 717a159c266SJung-uk Kim 718a159c266SJung-uk Kim 719a159c266SJung-uk Kim /* We are interested in Devices, Processors and ThermalZones only */ 720a159c266SJung-uk Kim 721a159c266SJung-uk Kim DeviceNode = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle); 722a159c266SJung-uk Kim if ((DeviceNode->Type != ACPI_TYPE_DEVICE) && 723a159c266SJung-uk Kim (DeviceNode->Type != ACPI_TYPE_PROCESSOR) && 724a159c266SJung-uk Kim (DeviceNode->Type != ACPI_TYPE_THERMAL)) 725a159c266SJung-uk Kim { 726a159c266SJung-uk Kim return_ACPI_STATUS (AE_OK); 727a159c266SJung-uk Kim } 728a159c266SJung-uk Kim 729a159c266SJung-uk Kim /* 730a159c266SJung-uk Kim * Because of an earlier namespace analysis, all subtrees that contain an 731a159c266SJung-uk Kim * _INI method are tagged. 732a159c266SJung-uk Kim * 733a159c266SJung-uk Kim * If this device subtree does not contain any _INI methods, we 734a159c266SJung-uk Kim * can exit now and stop traversing this entire subtree. 735a159c266SJung-uk Kim */ 736a159c266SJung-uk Kim if (!(DeviceNode->Flags & ANOBJ_SUBTREE_HAS_INI)) 737a159c266SJung-uk Kim { 738a159c266SJung-uk Kim return_ACPI_STATUS (AE_CTRL_DEPTH); 739a159c266SJung-uk Kim } 740a159c266SJung-uk Kim 741a159c266SJung-uk Kim /* 742a159c266SJung-uk Kim * Run _STA to determine if this device is present and functioning. We 743a159c266SJung-uk Kim * must know this information for two important reasons (from ACPI spec): 744a159c266SJung-uk Kim * 745a159c266SJung-uk Kim * 1) We can only run _INI if the device is present. 746a159c266SJung-uk Kim * 2) We must abort the device tree walk on this subtree if the device is 747a159c266SJung-uk Kim * not present and is not functional (we will not examine the children) 748a159c266SJung-uk Kim * 749a159c266SJung-uk Kim * The _STA method is not required to be present under the device, we 750a159c266SJung-uk Kim * assume the device is present if _STA does not exist. 751a159c266SJung-uk Kim */ 752a159c266SJung-uk Kim ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname ( 753a159c266SJung-uk Kim ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__STA)); 754a159c266SJung-uk Kim 755a159c266SJung-uk Kim Status = AcpiUtExecute_STA (DeviceNode, &Flags); 756a159c266SJung-uk Kim if (ACPI_FAILURE (Status)) 757a159c266SJung-uk Kim { 758a159c266SJung-uk Kim /* Ignore error and move on to next device */ 759a159c266SJung-uk Kim 760a159c266SJung-uk Kim return_ACPI_STATUS (AE_OK); 761a159c266SJung-uk Kim } 762a159c266SJung-uk Kim 763a159c266SJung-uk Kim /* 764a159c266SJung-uk Kim * Flags == -1 means that _STA was not found. In this case, we assume that 765a159c266SJung-uk Kim * the device is both present and functional. 766a159c266SJung-uk Kim * 767a159c266SJung-uk Kim * From the ACPI spec, description of _STA: 768a159c266SJung-uk Kim * 769a159c266SJung-uk Kim * "If a device object (including the processor object) does not have an 770a159c266SJung-uk Kim * _STA object, then OSPM assumes that all of the above bits are set (in 771a159c266SJung-uk Kim * other words, the device is present, ..., and functioning)" 772a159c266SJung-uk Kim */ 773a159c266SJung-uk Kim if (Flags != ACPI_UINT32_MAX) 774a159c266SJung-uk Kim { 775a159c266SJung-uk Kim WalkInfo->Num_STA++; 776a159c266SJung-uk Kim } 777a159c266SJung-uk Kim 778a159c266SJung-uk Kim /* 779a159c266SJung-uk Kim * Examine the PRESENT and FUNCTIONING status bits 780a159c266SJung-uk Kim * 781a159c266SJung-uk Kim * Note: ACPI spec does not seem to specify behavior for the present but 782a159c266SJung-uk Kim * not functioning case, so we assume functioning if present. 783a159c266SJung-uk Kim */ 784a159c266SJung-uk Kim if (!(Flags & ACPI_STA_DEVICE_PRESENT)) 785a159c266SJung-uk Kim { 786a159c266SJung-uk Kim /* Device is not present, we must examine the Functioning bit */ 787a159c266SJung-uk Kim 788a159c266SJung-uk Kim if (Flags & ACPI_STA_DEVICE_FUNCTIONING) 789a159c266SJung-uk Kim { 790a159c266SJung-uk Kim /* 791a159c266SJung-uk Kim * Device is not present but is "functioning". In this case, 792a159c266SJung-uk Kim * we will not run _INI, but we continue to examine the children 793a159c266SJung-uk Kim * of this device. 794a159c266SJung-uk Kim * 795a159c266SJung-uk Kim * From the ACPI spec, description of _STA: (Note - no mention 796a159c266SJung-uk Kim * of whether to run _INI or not on the device in question) 797a159c266SJung-uk Kim * 798a159c266SJung-uk Kim * "_STA may return bit 0 clear (not present) with bit 3 set 799a159c266SJung-uk Kim * (device is functional). This case is used to indicate a valid 800a159c266SJung-uk Kim * device for which no device driver should be loaded (for example, 801a159c266SJung-uk Kim * a bridge device.) Children of this device may be present and 802a159c266SJung-uk Kim * valid. OSPM should continue enumeration below a device whose 803a159c266SJung-uk Kim * _STA returns this bit combination" 804a159c266SJung-uk Kim */ 805a159c266SJung-uk Kim return_ACPI_STATUS (AE_OK); 806a159c266SJung-uk Kim } 807a159c266SJung-uk Kim else 808a159c266SJung-uk Kim { 809a159c266SJung-uk Kim /* 810a159c266SJung-uk Kim * Device is not present and is not functioning. We must abort the 811a159c266SJung-uk Kim * walk of this subtree immediately -- don't look at the children 812a159c266SJung-uk Kim * of such a device. 813a159c266SJung-uk Kim * 814a159c266SJung-uk Kim * From the ACPI spec, description of _INI: 815a159c266SJung-uk Kim * 816a159c266SJung-uk Kim * "If the _STA method indicates that the device is not present, 817a159c266SJung-uk Kim * OSPM will not run the _INI and will not examine the children 818a159c266SJung-uk Kim * of the device for _INI methods" 819a159c266SJung-uk Kim */ 820a159c266SJung-uk Kim return_ACPI_STATUS (AE_CTRL_DEPTH); 821a159c266SJung-uk Kim } 822a159c266SJung-uk Kim } 823a159c266SJung-uk Kim 824a159c266SJung-uk Kim /* 825a159c266SJung-uk Kim * The device is present or is assumed present if no _STA exists. 826a159c266SJung-uk Kim * Run the _INI if it exists (not required to exist) 827a159c266SJung-uk Kim * 828a159c266SJung-uk Kim * Note: We know there is an _INI within this subtree, but it may not be 829a159c266SJung-uk Kim * under this particular device, it may be lower in the branch. 830a159c266SJung-uk Kim */ 831278f0de6SJung-uk Kim if (!ACPI_COMPARE_NAMESEG (DeviceNode->Name.Ascii, "_SB_") || 832f8146b88SJung-uk Kim DeviceNode->Parent != AcpiGbl_RootNode) 833f8146b88SJung-uk Kim { 834a159c266SJung-uk Kim ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname ( 835a159c266SJung-uk Kim ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__INI)); 836a159c266SJung-uk Kim 8375ef50723SJung-uk Kim memset (Info, 0, sizeof (ACPI_EVALUATE_INFO)); 838a159c266SJung-uk Kim Info->PrefixNode = DeviceNode; 839895f26a9SJung-uk Kim Info->RelativePathname = METHOD_NAME__INI; 840a159c266SJung-uk Kim Info->Parameters = NULL; 841a159c266SJung-uk Kim Info->Flags = ACPI_IGNORE_RETURN_VALUE; 842a159c266SJung-uk Kim 843a159c266SJung-uk Kim Status = AcpiNsEvaluate (Info); 844a159c266SJung-uk Kim if (ACPI_SUCCESS (Status)) 845a159c266SJung-uk Kim { 846a159c266SJung-uk Kim WalkInfo->Num_INI++; 847a159c266SJung-uk Kim } 848a159c266SJung-uk Kim 849a159c266SJung-uk Kim #ifdef ACPI_DEBUG_OUTPUT 850a159c266SJung-uk Kim else if (Status != AE_NOT_FOUND) 851a159c266SJung-uk Kim { 852a159c266SJung-uk Kim /* Ignore error and move on to next device */ 853a159c266SJung-uk Kim 854f8146b88SJung-uk Kim char *ScopeName = AcpiNsGetNormalizedPathname (DeviceNode, TRUE); 855a159c266SJung-uk Kim 856a159c266SJung-uk Kim ACPI_EXCEPTION ((AE_INFO, Status, "during %s._INI execution", 857a159c266SJung-uk Kim ScopeName)); 858a159c266SJung-uk Kim ACPI_FREE (ScopeName); 859a159c266SJung-uk Kim } 860a159c266SJung-uk Kim #endif 861f8146b88SJung-uk Kim } 862a159c266SJung-uk Kim 863a159c266SJung-uk Kim /* Ignore errors from above */ 864a159c266SJung-uk Kim 865a159c266SJung-uk Kim Status = AE_OK; 866a159c266SJung-uk Kim 867a159c266SJung-uk Kim /* 868a159c266SJung-uk Kim * The _INI method has been run if present; call the Global Initialization 869a159c266SJung-uk Kim * Handler for this device. 870a159c266SJung-uk Kim */ 871a159c266SJung-uk Kim if (AcpiGbl_InitHandler) 872a159c266SJung-uk Kim { 873a159c266SJung-uk Kim Status = AcpiGbl_InitHandler (DeviceNode, ACPI_INIT_DEVICE_INI); 874a159c266SJung-uk Kim } 875a159c266SJung-uk Kim 876a159c266SJung-uk Kim return_ACPI_STATUS (Status); 877a159c266SJung-uk Kim } 878