xref: /freebsd-src/sys/contrib/dev/acpica/components/namespace/nsinit.c (revision 804fe2660352e090f4481f2c1d646b508859e79a)
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