10d02842fSSascha Wildner /******************************************************************************
20d02842fSSascha Wildner *
30d02842fSSascha Wildner * Module Name: nsinit - namespace initialization
40d02842fSSascha Wildner *
50d02842fSSascha Wildner *****************************************************************************/
60d02842fSSascha Wildner
7b4315fc7SSascha Wildner /******************************************************************************
8b4315fc7SSascha Wildner *
9b4315fc7SSascha Wildner * 1. Copyright Notice
10b4315fc7SSascha Wildner *
11*383048acSSascha Wildner * Some or all of this work - Copyright (c) 1999 - 2021, Intel Corp.
120d02842fSSascha Wildner * All rights reserved.
130d02842fSSascha Wildner *
14b4315fc7SSascha Wildner * 2. License
15b4315fc7SSascha Wildner *
16b4315fc7SSascha Wildner * 2.1. This is your license from Intel Corp. under its intellectual property
17b4315fc7SSascha Wildner * rights. You may have additional license terms from the party that provided
18b4315fc7SSascha Wildner * you this software, covering your right to use that party's intellectual
19b4315fc7SSascha Wildner * property rights.
20b4315fc7SSascha Wildner *
21b4315fc7SSascha Wildner * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22b4315fc7SSascha Wildner * copy of the source code appearing in this file ("Covered Code") an
23b4315fc7SSascha Wildner * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24b4315fc7SSascha Wildner * base code distributed originally by Intel ("Original Intel Code") to copy,
25b4315fc7SSascha Wildner * make derivatives, distribute, use and display any portion of the Covered
26b4315fc7SSascha Wildner * Code in any form, with the right to sublicense such rights; and
27b4315fc7SSascha Wildner *
28b4315fc7SSascha Wildner * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29b4315fc7SSascha Wildner * license (with the right to sublicense), under only those claims of Intel
30b4315fc7SSascha Wildner * patents that are infringed by the Original Intel Code, to make, use, sell,
31b4315fc7SSascha Wildner * offer to sell, and import the Covered Code and derivative works thereof
32b4315fc7SSascha Wildner * solely to the minimum extent necessary to exercise the above copyright
33b4315fc7SSascha Wildner * license, and in no event shall the patent license extend to any additions
34b4315fc7SSascha Wildner * to or modifications of the Original Intel Code. No other license or right
35b4315fc7SSascha Wildner * is granted directly or by implication, estoppel or otherwise;
36b4315fc7SSascha Wildner *
37b4315fc7SSascha Wildner * The above copyright and patent license is granted only if the following
38b4315fc7SSascha Wildner * conditions are met:
39b4315fc7SSascha Wildner *
40b4315fc7SSascha Wildner * 3. Conditions
41b4315fc7SSascha Wildner *
42b4315fc7SSascha Wildner * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43b4315fc7SSascha Wildner * Redistribution of source code of any substantial portion of the Covered
44b4315fc7SSascha Wildner * Code or modification with rights to further distribute source must include
45b4315fc7SSascha Wildner * the above Copyright Notice, the above License, this list of Conditions,
46b4315fc7SSascha Wildner * and the following Disclaimer and Export Compliance provision. In addition,
47b4315fc7SSascha Wildner * Licensee must cause all Covered Code to which Licensee contributes to
48b4315fc7SSascha Wildner * contain a file documenting the changes Licensee made to create that Covered
49b4315fc7SSascha Wildner * Code and the date of any change. Licensee must include in that file the
50b4315fc7SSascha Wildner * documentation of any changes made by any predecessor Licensee. Licensee
51b4315fc7SSascha Wildner * must include a prominent statement that the modification is derived,
52b4315fc7SSascha Wildner * directly or indirectly, from Original Intel Code.
53b4315fc7SSascha Wildner *
54b4315fc7SSascha Wildner * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55b4315fc7SSascha Wildner * Redistribution of source code of any substantial portion of the Covered
56b4315fc7SSascha Wildner * Code or modification without rights to further distribute source must
57b4315fc7SSascha Wildner * include the following Disclaimer and Export Compliance provision in the
58b4315fc7SSascha Wildner * documentation and/or other materials provided with distribution. In
59b4315fc7SSascha Wildner * addition, Licensee may not authorize further sublicense of source of any
60b4315fc7SSascha Wildner * portion of the Covered Code, and must include terms to the effect that the
61b4315fc7SSascha Wildner * license from Licensee to its licensee is limited to the intellectual
62b4315fc7SSascha Wildner * property embodied in the software Licensee provides to its licensee, and
63b4315fc7SSascha Wildner * not to intellectual property embodied in modifications its licensee may
64b4315fc7SSascha Wildner * make.
65b4315fc7SSascha Wildner *
66b4315fc7SSascha Wildner * 3.3. Redistribution of Executable. Redistribution in executable form of any
67b4315fc7SSascha Wildner * substantial portion of the Covered Code or modification must reproduce the
68b4315fc7SSascha Wildner * above Copyright Notice, and the following Disclaimer and Export Compliance
69b4315fc7SSascha Wildner * provision in the documentation and/or other materials provided with the
70b4315fc7SSascha Wildner * distribution.
71b4315fc7SSascha Wildner *
72b4315fc7SSascha Wildner * 3.4. Intel retains all right, title, and interest in and to the Original
73b4315fc7SSascha Wildner * Intel Code.
74b4315fc7SSascha Wildner *
75b4315fc7SSascha Wildner * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76b4315fc7SSascha Wildner * Intel shall be used in advertising or otherwise to promote the sale, use or
77b4315fc7SSascha Wildner * other dealings in products derived from or relating to the Covered Code
78b4315fc7SSascha Wildner * without prior written authorization from Intel.
79b4315fc7SSascha Wildner *
80b4315fc7SSascha Wildner * 4. Disclaimer and Export Compliance
81b4315fc7SSascha Wildner *
82b4315fc7SSascha Wildner * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83b4315fc7SSascha Wildner * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84b4315fc7SSascha Wildner * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85b4315fc7SSascha Wildner * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86b4315fc7SSascha Wildner * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87b4315fc7SSascha Wildner * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88b4315fc7SSascha Wildner * PARTICULAR PURPOSE.
89b4315fc7SSascha Wildner *
90b4315fc7SSascha Wildner * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91b4315fc7SSascha Wildner * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92b4315fc7SSascha Wildner * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93b4315fc7SSascha Wildner * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94b4315fc7SSascha Wildner * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95b4315fc7SSascha Wildner * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96b4315fc7SSascha Wildner * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97b4315fc7SSascha Wildner * LIMITED REMEDY.
98b4315fc7SSascha Wildner *
99b4315fc7SSascha Wildner * 4.3. Licensee shall not export, either directly or indirectly, any of this
100b4315fc7SSascha Wildner * software or system incorporating such software without first obtaining any
101b4315fc7SSascha Wildner * required license or other approval from the U. S. Department of Commerce or
102b4315fc7SSascha Wildner * any other agency or department of the United States Government. In the
103b4315fc7SSascha Wildner * event Licensee exports any such software from the United States or
104b4315fc7SSascha Wildner * re-exports any such software from a foreign destination, Licensee shall
105b4315fc7SSascha Wildner * ensure that the distribution and export/re-export of the software is in
106b4315fc7SSascha Wildner * compliance with all laws, regulations, orders, or other restrictions of the
107b4315fc7SSascha Wildner * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108b4315fc7SSascha Wildner * any of its subsidiaries will export/re-export any technical data, process,
109b4315fc7SSascha Wildner * software, or service, directly or indirectly, to any country for which the
110b4315fc7SSascha Wildner * United States government or any agency thereof requires an export license,
111b4315fc7SSascha Wildner * other governmental approval, or letter of assurance, without first obtaining
112b4315fc7SSascha Wildner * such license, approval or letter.
113b4315fc7SSascha Wildner *
114b4315fc7SSascha Wildner *****************************************************************************
115b4315fc7SSascha Wildner *
116b4315fc7SSascha Wildner * Alternatively, you may choose to be licensed under the terms of the
117b4315fc7SSascha Wildner * following license:
118b4315fc7SSascha Wildner *
1190d02842fSSascha Wildner * Redistribution and use in source and binary forms, with or without
1200d02842fSSascha Wildner * modification, are permitted provided that the following conditions
1210d02842fSSascha Wildner * are met:
1220d02842fSSascha Wildner * 1. Redistributions of source code must retain the above copyright
1230d02842fSSascha Wildner * notice, this list of conditions, and the following disclaimer,
1240d02842fSSascha Wildner * without modification.
1250d02842fSSascha Wildner * 2. Redistributions in binary form must reproduce at minimum a disclaimer
1260d02842fSSascha Wildner * substantially similar to the "NO WARRANTY" disclaimer below
1270d02842fSSascha Wildner * ("Disclaimer") and any redistribution must be conditioned upon
1280d02842fSSascha Wildner * including a substantially similar Disclaimer requirement for further
1290d02842fSSascha Wildner * binary redistribution.
1300d02842fSSascha Wildner * 3. Neither the names of the above-listed copyright holders nor the names
1310d02842fSSascha Wildner * of any contributors may be used to endorse or promote products derived
1320d02842fSSascha Wildner * from this software without specific prior written permission.
1330d02842fSSascha Wildner *
134b4315fc7SSascha Wildner * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135b4315fc7SSascha Wildner * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136b4315fc7SSascha Wildner * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137b4315fc7SSascha Wildner * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138b4315fc7SSascha Wildner * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139b4315fc7SSascha Wildner * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140b4315fc7SSascha Wildner * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141b4315fc7SSascha Wildner * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142b4315fc7SSascha Wildner * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143b4315fc7SSascha Wildner * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144b4315fc7SSascha Wildner * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145b4315fc7SSascha Wildner *
146b4315fc7SSascha Wildner * Alternatively, you may choose to be licensed under the terms of the
1470d02842fSSascha Wildner * GNU General Public License ("GPL") version 2 as published by the Free
1480d02842fSSascha Wildner * Software Foundation.
1490d02842fSSascha Wildner *
150b4315fc7SSascha Wildner *****************************************************************************/
1510d02842fSSascha Wildner
1520d02842fSSascha Wildner #include "acpi.h"
1530d02842fSSascha Wildner #include "accommon.h"
1540d02842fSSascha Wildner #include "acnamesp.h"
1550d02842fSSascha Wildner #include "acdispat.h"
1560d02842fSSascha Wildner #include "acinterp.h"
1577c9678bcSSascha Wildner #include "acevents.h"
1580d02842fSSascha Wildner
1590d02842fSSascha Wildner #define _COMPONENT ACPI_NAMESPACE
1600d02842fSSascha Wildner ACPI_MODULE_NAME ("nsinit")
1610d02842fSSascha Wildner
1620d02842fSSascha Wildner /* Local prototypes */
1630d02842fSSascha Wildner
1640d02842fSSascha Wildner static ACPI_STATUS
1650d02842fSSascha Wildner AcpiNsInitOneObject (
1660d02842fSSascha Wildner ACPI_HANDLE ObjHandle,
1670d02842fSSascha Wildner UINT32 Level,
1680d02842fSSascha Wildner void *Context,
1690d02842fSSascha Wildner void **ReturnValue);
1700d02842fSSascha Wildner
1710d02842fSSascha Wildner static ACPI_STATUS
1720d02842fSSascha Wildner AcpiNsInitOneDevice (
1730d02842fSSascha Wildner ACPI_HANDLE ObjHandle,
1740d02842fSSascha Wildner UINT32 NestingLevel,
1750d02842fSSascha Wildner void *Context,
1760d02842fSSascha Wildner void **ReturnValue);
1770d02842fSSascha Wildner
1780d02842fSSascha Wildner static ACPI_STATUS
1790d02842fSSascha Wildner AcpiNsFindIniMethods (
1800d02842fSSascha Wildner ACPI_HANDLE ObjHandle,
1810d02842fSSascha Wildner UINT32 NestingLevel,
1820d02842fSSascha Wildner void *Context,
1830d02842fSSascha Wildner void **ReturnValue);
1840d02842fSSascha Wildner
1850d02842fSSascha Wildner
1860d02842fSSascha Wildner /*******************************************************************************
1870d02842fSSascha Wildner *
1880d02842fSSascha Wildner * FUNCTION: AcpiNsInitializeObjects
1890d02842fSSascha Wildner *
1900d02842fSSascha Wildner * PARAMETERS: None
1910d02842fSSascha Wildner *
1920d02842fSSascha Wildner * RETURN: Status
1930d02842fSSascha Wildner *
1940d02842fSSascha Wildner * DESCRIPTION: Walk the entire namespace and perform any necessary
1950d02842fSSascha Wildner * initialization on the objects found therein
1960d02842fSSascha Wildner *
1970d02842fSSascha Wildner ******************************************************************************/
1980d02842fSSascha Wildner
1990d02842fSSascha Wildner ACPI_STATUS
AcpiNsInitializeObjects(void)2000d02842fSSascha Wildner AcpiNsInitializeObjects (
2010d02842fSSascha Wildner void)
2020d02842fSSascha Wildner {
2030d02842fSSascha Wildner ACPI_STATUS Status;
2040d02842fSSascha Wildner ACPI_INIT_WALK_INFO Info;
2050d02842fSSascha Wildner
2060d02842fSSascha Wildner
2070d02842fSSascha Wildner ACPI_FUNCTION_TRACE (NsInitializeObjects);
2080d02842fSSascha Wildner
2090d02842fSSascha Wildner
2102ffe9f16SSascha Wildner ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
2112ffe9f16SSascha Wildner "[Init] Completing Initialization of ACPI Objects\n"));
2120d02842fSSascha Wildner ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
2130d02842fSSascha Wildner "**** Starting initialization of namespace objects ****\n"));
2140d02842fSSascha Wildner ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
2157622fe52SSascha Wildner "Final data object initialization: "));
2160d02842fSSascha Wildner
2177622fe52SSascha Wildner /* Clear the info block */
2180d02842fSSascha Wildner
21925ca8c79SSascha Wildner memset (&Info, 0, sizeof (ACPI_INIT_WALK_INFO));
2200d02842fSSascha Wildner
2210d02842fSSascha Wildner /* Walk entire namespace from the supplied root */
2220d02842fSSascha Wildner
2237622fe52SSascha Wildner /*
2247622fe52SSascha Wildner * TBD: will become ACPI_TYPE_PACKAGE as this type object
2257622fe52SSascha Wildner * is now the only one that supports deferred initialization
2267622fe52SSascha Wildner * (forward references).
2277622fe52SSascha Wildner */
2280d02842fSSascha Wildner Status = AcpiWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
2297622fe52SSascha Wildner ACPI_UINT32_MAX, AcpiNsInitOneObject, NULL, &Info, NULL);
2300d02842fSSascha Wildner if (ACPI_FAILURE (Status))
2310d02842fSSascha Wildner {
2320d02842fSSascha Wildner ACPI_EXCEPTION ((AE_INFO, Status, "During WalkNamespace"));
2330d02842fSSascha Wildner }
2340d02842fSSascha Wildner
2350d02842fSSascha Wildner ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
2367622fe52SSascha Wildner "Namespace contains %u (0x%X) objects\n",
2377622fe52SSascha Wildner Info.ObjectCount,
2387622fe52SSascha Wildner Info.ObjectCount));
2390d02842fSSascha Wildner
2400d02842fSSascha Wildner ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
2416a0135c2SSascha Wildner "%u Control Methods found\n%u Op Regions found\n",
2426a0135c2SSascha Wildner Info.MethodCount, Info.OpRegionCount));
2430d02842fSSascha Wildner
2440d02842fSSascha Wildner return_ACPI_STATUS (AE_OK);
2450d02842fSSascha Wildner }
2460d02842fSSascha Wildner
2470d02842fSSascha Wildner
2480d02842fSSascha Wildner /*******************************************************************************
2490d02842fSSascha Wildner *
2500d02842fSSascha Wildner * FUNCTION: AcpiNsInitializeDevices
2510d02842fSSascha Wildner *
2520d02842fSSascha Wildner * PARAMETERS: None
2530d02842fSSascha Wildner *
2540d02842fSSascha Wildner * RETURN: ACPI_STATUS
2550d02842fSSascha Wildner *
2560d02842fSSascha Wildner * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices.
2570d02842fSSascha Wildner * This means running _INI on all present devices.
2580d02842fSSascha Wildner *
2590d02842fSSascha Wildner * Note: We install PCI config space handler on region access,
2600d02842fSSascha Wildner * not here.
2610d02842fSSascha Wildner *
2620d02842fSSascha Wildner ******************************************************************************/
2630d02842fSSascha Wildner
2640d02842fSSascha Wildner ACPI_STATUS
AcpiNsInitializeDevices(UINT32 Flags)2650d02842fSSascha Wildner AcpiNsInitializeDevices (
2667c9678bcSSascha Wildner UINT32 Flags)
2670d02842fSSascha Wildner {
2687c9678bcSSascha Wildner ACPI_STATUS Status = AE_OK;
2690d02842fSSascha Wildner ACPI_DEVICE_WALK_INFO Info;
2702ffe9f16SSascha Wildner ACPI_HANDLE Handle;
2710d02842fSSascha Wildner
2720d02842fSSascha Wildner
2730d02842fSSascha Wildner ACPI_FUNCTION_TRACE (NsInitializeDevices);
2740d02842fSSascha Wildner
2750d02842fSSascha Wildner
2767c9678bcSSascha Wildner if (!(Flags & ACPI_NO_DEVICE_INIT))
2777c9678bcSSascha Wildner {
2787c9678bcSSascha Wildner ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
2797c9678bcSSascha Wildner "[Init] Initializing ACPI Devices\n"));
2807c9678bcSSascha Wildner
2810d02842fSSascha Wildner /* Init counters */
2820d02842fSSascha Wildner
2830d02842fSSascha Wildner Info.DeviceCount = 0;
2840d02842fSSascha Wildner Info.Num_STA = 0;
2850d02842fSSascha Wildner Info.Num_INI = 0;
2860d02842fSSascha Wildner
2870d02842fSSascha Wildner ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
2880d02842fSSascha Wildner "Initializing Device/Processor/Thermal objects "
2890d02842fSSascha Wildner "and executing _INI/_STA methods:\n"));
2900d02842fSSascha Wildner
2910d02842fSSascha Wildner /* Tree analysis: find all subtrees that contain _INI methods */
2920d02842fSSascha Wildner
2930d02842fSSascha Wildner Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
2940d02842fSSascha Wildner ACPI_UINT32_MAX, FALSE, AcpiNsFindIniMethods, NULL, &Info, NULL);
2950d02842fSSascha Wildner if (ACPI_FAILURE (Status))
2960d02842fSSascha Wildner {
2970d02842fSSascha Wildner goto ErrorExit;
2980d02842fSSascha Wildner }
2990d02842fSSascha Wildner
3000d02842fSSascha Wildner /* Allocate the evaluation information block */
3010d02842fSSascha Wildner
3020d02842fSSascha Wildner Info.EvaluateInfo = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
3030d02842fSSascha Wildner if (!Info.EvaluateInfo)
3040d02842fSSascha Wildner {
3050d02842fSSascha Wildner Status = AE_NO_MEMORY;
3060d02842fSSascha Wildner goto ErrorExit;
3070d02842fSSascha Wildner }
3080d02842fSSascha Wildner
3090d02842fSSascha Wildner /*
3107c9678bcSSascha Wildner * Execute the "global" _INI method that may appear at the root.
3117c9678bcSSascha Wildner * This support is provided for Windows compatibility (Vista+) and
3127c9678bcSSascha Wildner * is not part of the ACPI specification.
3130d02842fSSascha Wildner */
3140d02842fSSascha Wildner Info.EvaluateInfo->PrefixNode = AcpiGbl_RootNode;
3150d02842fSSascha Wildner Info.EvaluateInfo->RelativePathname = METHOD_NAME__INI;
3160d02842fSSascha Wildner Info.EvaluateInfo->Parameters = NULL;
3170d02842fSSascha Wildner Info.EvaluateInfo->Flags = ACPI_IGNORE_RETURN_VALUE;
3180d02842fSSascha Wildner
3190d02842fSSascha Wildner Status = AcpiNsEvaluate (Info.EvaluateInfo);
3200d02842fSSascha Wildner if (ACPI_SUCCESS (Status))
3210d02842fSSascha Wildner {
3220d02842fSSascha Wildner Info.Num_INI++;
3230d02842fSSascha Wildner }
3242ffe9f16SSascha Wildner
3252ffe9f16SSascha Wildner /*
3262ffe9f16SSascha Wildner * Execute \_SB._INI.
3272ffe9f16SSascha Wildner * There appears to be a strict order requirement for \_SB._INI,
3282ffe9f16SSascha Wildner * which should be evaluated before any _REG evaluations.
3292ffe9f16SSascha Wildner */
3302ffe9f16SSascha Wildner Status = AcpiGetHandle (NULL, "\\_SB", &Handle);
3312ffe9f16SSascha Wildner if (ACPI_SUCCESS (Status))
3322ffe9f16SSascha Wildner {
3332ffe9f16SSascha Wildner memset (Info.EvaluateInfo, 0, sizeof (ACPI_EVALUATE_INFO));
3342ffe9f16SSascha Wildner Info.EvaluateInfo->PrefixNode = Handle;
3352ffe9f16SSascha Wildner Info.EvaluateInfo->RelativePathname = METHOD_NAME__INI;
3362ffe9f16SSascha Wildner Info.EvaluateInfo->Parameters = NULL;
3372ffe9f16SSascha Wildner Info.EvaluateInfo->Flags = ACPI_IGNORE_RETURN_VALUE;
3382ffe9f16SSascha Wildner
3392ffe9f16SSascha Wildner Status = AcpiNsEvaluate (Info.EvaluateInfo);
3402ffe9f16SSascha Wildner if (ACPI_SUCCESS (Status))
3412ffe9f16SSascha Wildner {
3422ffe9f16SSascha Wildner Info.Num_INI++;
3432ffe9f16SSascha Wildner }
3442ffe9f16SSascha Wildner }
3457c9678bcSSascha Wildner }
3460d02842fSSascha Wildner
3477c9678bcSSascha Wildner /*
3487c9678bcSSascha Wildner * Run all _REG methods
3497c9678bcSSascha Wildner *
3507c9678bcSSascha Wildner * Note: Any objects accessed by the _REG methods will be automatically
3517c9678bcSSascha Wildner * initialized, even if they contain executable AML (see the call to
3527c9678bcSSascha Wildner * AcpiNsInitializeObjects below).
3532ffe9f16SSascha Wildner *
3542ffe9f16SSascha Wildner * Note: According to the ACPI specification, we actually needn't execute
3552ffe9f16SSascha Wildner * _REG for SystemMemory/SystemIo operation regions, but for PCI_Config
3562ffe9f16SSascha Wildner * operation regions, it is required to evaluate _REG for those on a PCI
3572ffe9f16SSascha Wildner * root bus that doesn't contain _BBN object. So this code is kept here
3582ffe9f16SSascha Wildner * in order not to break things.
3597c9678bcSSascha Wildner */
3607c9678bcSSascha Wildner if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT))
3617c9678bcSSascha Wildner {
3627c9678bcSSascha Wildner ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
3637c9678bcSSascha Wildner "[Init] Executing _REG OpRegion methods\n"));
3647c9678bcSSascha Wildner
3657c9678bcSSascha Wildner Status = AcpiEvInitializeOpRegions ();
3667c9678bcSSascha Wildner if (ACPI_FAILURE (Status))
3677c9678bcSSascha Wildner {
3687c9678bcSSascha Wildner goto ErrorExit;
3697c9678bcSSascha Wildner }
3707c9678bcSSascha Wildner }
3717c9678bcSSascha Wildner
3727c9678bcSSascha Wildner if (!(Flags & ACPI_NO_DEVICE_INIT))
3737c9678bcSSascha Wildner {
3740d02842fSSascha Wildner /* Walk namespace to execute all _INIs on present devices */
3750d02842fSSascha Wildner
3760d02842fSSascha Wildner Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
3770d02842fSSascha Wildner ACPI_UINT32_MAX, FALSE, AcpiNsInitOneDevice, NULL, &Info, NULL);
3780d02842fSSascha Wildner
3790d02842fSSascha Wildner /*
3800d02842fSSascha Wildner * Any _OSI requests should be completed by now. If the BIOS has
3810d02842fSSascha Wildner * requested any Windows OSI strings, we will always truncate
3820d02842fSSascha Wildner * I/O addresses to 16 bits -- for Windows compatibility.
3830d02842fSSascha Wildner */
3840d02842fSSascha Wildner if (AcpiGbl_OsiData >= ACPI_OSI_WIN_2000)
3850d02842fSSascha Wildner {
3860d02842fSSascha Wildner AcpiGbl_TruncateIoAddresses = TRUE;
3870d02842fSSascha Wildner }
3880d02842fSSascha Wildner
3890d02842fSSascha Wildner ACPI_FREE (Info.EvaluateInfo);
3900d02842fSSascha Wildner if (ACPI_FAILURE (Status))
3910d02842fSSascha Wildner {
3920d02842fSSascha Wildner goto ErrorExit;
3930d02842fSSascha Wildner }
3940d02842fSSascha Wildner
3950d02842fSSascha Wildner ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
3960d02842fSSascha Wildner " Executed %u _INI methods requiring %u _STA executions "
3970d02842fSSascha Wildner "(examined %u objects)\n",
3980d02842fSSascha Wildner Info.Num_INI, Info.Num_STA, Info.DeviceCount));
3997c9678bcSSascha Wildner }
4000d02842fSSascha Wildner
4010d02842fSSascha Wildner return_ACPI_STATUS (Status);
4020d02842fSSascha Wildner
4030d02842fSSascha Wildner
4040d02842fSSascha Wildner ErrorExit:
4050d02842fSSascha Wildner ACPI_EXCEPTION ((AE_INFO, Status, "During device initialization"));
4060d02842fSSascha Wildner return_ACPI_STATUS (Status);
4070d02842fSSascha Wildner }
4080d02842fSSascha Wildner
4090d02842fSSascha Wildner
4100d02842fSSascha Wildner /*******************************************************************************
4110d02842fSSascha Wildner *
4127bcb6cafSSascha Wildner * FUNCTION: AcpiNsInitOnePackage
4137bcb6cafSSascha Wildner *
4147bcb6cafSSascha Wildner * PARAMETERS: ObjHandle - Node
4157bcb6cafSSascha Wildner * Level - Current nesting level
4167bcb6cafSSascha Wildner * Context - Not used
4177bcb6cafSSascha Wildner * ReturnValue - Not used
4187bcb6cafSSascha Wildner *
4197bcb6cafSSascha Wildner * RETURN: Status
4207bcb6cafSSascha Wildner *
4217bcb6cafSSascha Wildner * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every package
4227bcb6cafSSascha Wildner * within the namespace. Used during dynamic load of an SSDT.
4237bcb6cafSSascha Wildner *
4247bcb6cafSSascha Wildner ******************************************************************************/
4257bcb6cafSSascha Wildner
4267bcb6cafSSascha Wildner ACPI_STATUS
AcpiNsInitOnePackage(ACPI_HANDLE ObjHandle,UINT32 Level,void * Context,void ** ReturnValue)4277bcb6cafSSascha Wildner AcpiNsInitOnePackage (
4287bcb6cafSSascha Wildner ACPI_HANDLE ObjHandle,
4297bcb6cafSSascha Wildner UINT32 Level,
4307bcb6cafSSascha Wildner void *Context,
4317bcb6cafSSascha Wildner void **ReturnValue)
4327bcb6cafSSascha Wildner {
4337bcb6cafSSascha Wildner ACPI_STATUS Status;
4347bcb6cafSSascha Wildner ACPI_OPERAND_OBJECT *ObjDesc;
4357bcb6cafSSascha Wildner ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
4367bcb6cafSSascha Wildner
4377bcb6cafSSascha Wildner
4387bcb6cafSSascha Wildner ObjDesc = AcpiNsGetAttachedObject (Node);
4397bcb6cafSSascha Wildner if (!ObjDesc)
4407bcb6cafSSascha Wildner {
4417bcb6cafSSascha Wildner return (AE_OK);
4427bcb6cafSSascha Wildner }
4437bcb6cafSSascha Wildner
4447bcb6cafSSascha Wildner /* Exit if package is already initialized */
4457bcb6cafSSascha Wildner
4467bcb6cafSSascha Wildner if (ObjDesc->Package.Flags & AOPOBJ_DATA_VALID)
4477bcb6cafSSascha Wildner {
4487bcb6cafSSascha Wildner return (AE_OK);
4497bcb6cafSSascha Wildner }
4507bcb6cafSSascha Wildner
4517bcb6cafSSascha Wildner Status = AcpiDsGetPackageArguments (ObjDesc);
4527bcb6cafSSascha Wildner if (ACPI_FAILURE (Status))
4537bcb6cafSSascha Wildner {
4547bcb6cafSSascha Wildner return (AE_OK);
4557bcb6cafSSascha Wildner }
4567bcb6cafSSascha Wildner
4577bcb6cafSSascha Wildner Status = AcpiUtWalkPackageTree (ObjDesc, NULL, AcpiDsInitPackageElement,
4587bcb6cafSSascha Wildner NULL);
4597bcb6cafSSascha Wildner if (ACPI_FAILURE (Status))
4607bcb6cafSSascha Wildner {
4617bcb6cafSSascha Wildner return (AE_OK);
4627bcb6cafSSascha Wildner }
4637bcb6cafSSascha Wildner
4647bcb6cafSSascha Wildner ObjDesc->Package.Flags |= AOPOBJ_DATA_VALID;
4657bcb6cafSSascha Wildner return (AE_OK);
4667bcb6cafSSascha Wildner }
4677bcb6cafSSascha Wildner
4687bcb6cafSSascha Wildner
4697bcb6cafSSascha Wildner /*******************************************************************************
4707bcb6cafSSascha Wildner *
4710d02842fSSascha Wildner * FUNCTION: AcpiNsInitOneObject
4720d02842fSSascha Wildner *
4730d02842fSSascha Wildner * PARAMETERS: ObjHandle - Node
4740d02842fSSascha Wildner * Level - Current nesting level
4750d02842fSSascha Wildner * Context - Points to a init info struct
4760d02842fSSascha Wildner * ReturnValue - Not used
4770d02842fSSascha Wildner *
4780d02842fSSascha Wildner * RETURN: Status
4790d02842fSSascha Wildner *
4800d02842fSSascha Wildner * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object
4810d02842fSSascha Wildner * within the namespace.
4820d02842fSSascha Wildner *
4830d02842fSSascha Wildner * Currently, the only objects that require initialization are:
4840d02842fSSascha Wildner * 1) Methods
4850d02842fSSascha Wildner * 2) Op Regions
4860d02842fSSascha Wildner *
4870d02842fSSascha Wildner ******************************************************************************/
4880d02842fSSascha Wildner
4890d02842fSSascha Wildner static ACPI_STATUS
AcpiNsInitOneObject(ACPI_HANDLE ObjHandle,UINT32 Level,void * Context,void ** ReturnValue)4900d02842fSSascha Wildner AcpiNsInitOneObject (
4910d02842fSSascha Wildner ACPI_HANDLE ObjHandle,
4920d02842fSSascha Wildner UINT32 Level,
4930d02842fSSascha Wildner void *Context,
4940d02842fSSascha Wildner void **ReturnValue)
4950d02842fSSascha Wildner {
4960d02842fSSascha Wildner ACPI_OBJECT_TYPE Type;
4970d02842fSSascha Wildner ACPI_STATUS Status = AE_OK;
4980d02842fSSascha Wildner ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context;
4990d02842fSSascha Wildner ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
5000d02842fSSascha Wildner ACPI_OPERAND_OBJECT *ObjDesc;
5010d02842fSSascha Wildner
5020d02842fSSascha Wildner
5030d02842fSSascha Wildner ACPI_FUNCTION_NAME (NsInitOneObject);
5040d02842fSSascha Wildner
5050d02842fSSascha Wildner
5060d02842fSSascha Wildner Info->ObjectCount++;
5070d02842fSSascha Wildner
5080d02842fSSascha Wildner /* And even then, we are only interested in a few object types */
5090d02842fSSascha Wildner
5100d02842fSSascha Wildner Type = AcpiNsGetType (ObjHandle);
5110d02842fSSascha Wildner ObjDesc = AcpiNsGetAttachedObject (Node);
5120d02842fSSascha Wildner if (!ObjDesc)
5130d02842fSSascha Wildner {
5140d02842fSSascha Wildner return (AE_OK);
5150d02842fSSascha Wildner }
5160d02842fSSascha Wildner
5170d02842fSSascha Wildner /* Increment counters for object types we are looking for */
5180d02842fSSascha Wildner
5190d02842fSSascha Wildner switch (Type)
5200d02842fSSascha Wildner {
5210d02842fSSascha Wildner case ACPI_TYPE_REGION:
5220d02842fSSascha Wildner
5230d02842fSSascha Wildner Info->OpRegionCount++;
5240d02842fSSascha Wildner break;
5250d02842fSSascha Wildner
5260d02842fSSascha Wildner case ACPI_TYPE_BUFFER_FIELD:
5270d02842fSSascha Wildner
5280d02842fSSascha Wildner Info->FieldCount++;
5290d02842fSSascha Wildner break;
5300d02842fSSascha Wildner
5310d02842fSSascha Wildner case ACPI_TYPE_LOCAL_BANK_FIELD:
5320d02842fSSascha Wildner
5330d02842fSSascha Wildner Info->FieldCount++;
5340d02842fSSascha Wildner break;
5350d02842fSSascha Wildner
5360d02842fSSascha Wildner case ACPI_TYPE_BUFFER:
5370d02842fSSascha Wildner
5380d02842fSSascha Wildner Info->BufferCount++;
5390d02842fSSascha Wildner break;
5400d02842fSSascha Wildner
5410d02842fSSascha Wildner case ACPI_TYPE_PACKAGE:
5420d02842fSSascha Wildner
5430d02842fSSascha Wildner Info->PackageCount++;
5440d02842fSSascha Wildner break;
5450d02842fSSascha Wildner
5460d02842fSSascha Wildner default:
5470d02842fSSascha Wildner
5480d02842fSSascha Wildner /* No init required, just exit now */
5490d02842fSSascha Wildner
5500d02842fSSascha Wildner return (AE_OK);
5510d02842fSSascha Wildner }
5520d02842fSSascha Wildner
5530d02842fSSascha Wildner /* If the object is already initialized, nothing else to do */
5540d02842fSSascha Wildner
5550d02842fSSascha Wildner if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
5560d02842fSSascha Wildner {
5570d02842fSSascha Wildner return (AE_OK);
5580d02842fSSascha Wildner }
5590d02842fSSascha Wildner
5600d02842fSSascha Wildner /* Must lock the interpreter before executing AML code */
5610d02842fSSascha Wildner
5620d02842fSSascha Wildner AcpiExEnterInterpreter ();
5630d02842fSSascha Wildner
5640d02842fSSascha Wildner /*
5657622fe52SSascha Wildner * Only initialization of Package objects can be deferred, in order
5667622fe52SSascha Wildner * to support forward references.
5670d02842fSSascha Wildner */
5680d02842fSSascha Wildner switch (Type)
5690d02842fSSascha Wildner {
5700d02842fSSascha Wildner case ACPI_TYPE_LOCAL_BANK_FIELD:
5710d02842fSSascha Wildner
5727622fe52SSascha Wildner /* TBD: BankFields do not require deferred init, remove this code */
5737622fe52SSascha Wildner
5740d02842fSSascha Wildner Info->FieldInit++;
5750d02842fSSascha Wildner Status = AcpiDsGetBankFieldArguments (ObjDesc);
5760d02842fSSascha Wildner break;
5770d02842fSSascha Wildner
5780d02842fSSascha Wildner case ACPI_TYPE_PACKAGE:
5790d02842fSSascha Wildner
5807bcb6cafSSascha Wildner /* Complete the initialization/resolution of the package object */
5813c639e0cSSascha Wildner
5827bcb6cafSSascha Wildner Info->PackageInit++;
5837bcb6cafSSascha Wildner Status = AcpiNsInitOnePackage (ObjHandle, Level, NULL, NULL);
5840d02842fSSascha Wildner break;
5850d02842fSSascha Wildner
5860d02842fSSascha Wildner default:
5870d02842fSSascha Wildner
5887622fe52SSascha Wildner /* No other types should get here */
5890d02842fSSascha Wildner
5907622fe52SSascha Wildner Status = AE_TYPE;
5917622fe52SSascha Wildner ACPI_EXCEPTION ((AE_INFO, Status,
5927622fe52SSascha Wildner "Opcode is not deferred [%4.4s] (%s)",
5937622fe52SSascha Wildner AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Type)));
5940d02842fSSascha Wildner break;
5950d02842fSSascha Wildner }
5960d02842fSSascha Wildner
5970d02842fSSascha Wildner if (ACPI_FAILURE (Status))
5980d02842fSSascha Wildner {
5990d02842fSSascha Wildner ACPI_EXCEPTION ((AE_INFO, Status,
6000d02842fSSascha Wildner "Could not execute arguments for [%4.4s] (%s)",
6010d02842fSSascha Wildner AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Type)));
6020d02842fSSascha Wildner }
6030d02842fSSascha Wildner
6040d02842fSSascha Wildner /*
6050d02842fSSascha Wildner * We ignore errors from above, and always return OK, since we don't want
6060d02842fSSascha Wildner * to abort the walk on any single error.
6070d02842fSSascha Wildner */
6080d02842fSSascha Wildner AcpiExExitInterpreter ();
6090d02842fSSascha Wildner return (AE_OK);
6100d02842fSSascha Wildner }
6110d02842fSSascha Wildner
6120d02842fSSascha Wildner
6130d02842fSSascha Wildner /*******************************************************************************
6140d02842fSSascha Wildner *
6150d02842fSSascha Wildner * FUNCTION: AcpiNsFindIniMethods
6160d02842fSSascha Wildner *
6170d02842fSSascha Wildner * PARAMETERS: ACPI_WALK_CALLBACK
6180d02842fSSascha Wildner *
6190d02842fSSascha Wildner * RETURN: ACPI_STATUS
6200d02842fSSascha Wildner *
6210d02842fSSascha Wildner * DESCRIPTION: Called during namespace walk. Finds objects named _INI under
6220d02842fSSascha Wildner * device/processor/thermal objects, and marks the entire subtree
6230d02842fSSascha Wildner * with a SUBTREE_HAS_INI flag. This flag is used during the
6240d02842fSSascha Wildner * subsequent device initialization walk to avoid entire subtrees
6250d02842fSSascha Wildner * that do not contain an _INI.
6260d02842fSSascha Wildner *
6270d02842fSSascha Wildner ******************************************************************************/
6280d02842fSSascha Wildner
6290d02842fSSascha Wildner static ACPI_STATUS
AcpiNsFindIniMethods(ACPI_HANDLE ObjHandle,UINT32 NestingLevel,void * Context,void ** ReturnValue)6300d02842fSSascha Wildner AcpiNsFindIniMethods (
6310d02842fSSascha Wildner ACPI_HANDLE ObjHandle,
6320d02842fSSascha Wildner UINT32 NestingLevel,
6330d02842fSSascha Wildner void *Context,
6340d02842fSSascha Wildner void **ReturnValue)
6350d02842fSSascha Wildner {
6360d02842fSSascha Wildner ACPI_DEVICE_WALK_INFO *Info = ACPI_CAST_PTR (ACPI_DEVICE_WALK_INFO, Context);
6370d02842fSSascha Wildner ACPI_NAMESPACE_NODE *Node;
6380d02842fSSascha Wildner ACPI_NAMESPACE_NODE *ParentNode;
6390d02842fSSascha Wildner
6400d02842fSSascha Wildner
6410d02842fSSascha Wildner /* Keep count of device/processor/thermal objects */
6420d02842fSSascha Wildner
6430d02842fSSascha Wildner Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
6440d02842fSSascha Wildner if ((Node->Type == ACPI_TYPE_DEVICE) ||
6450d02842fSSascha Wildner (Node->Type == ACPI_TYPE_PROCESSOR) ||
6460d02842fSSascha Wildner (Node->Type == ACPI_TYPE_THERMAL))
6470d02842fSSascha Wildner {
6480d02842fSSascha Wildner Info->DeviceCount++;
6490d02842fSSascha Wildner return (AE_OK);
6500d02842fSSascha Wildner }
6510d02842fSSascha Wildner
6520d02842fSSascha Wildner /* We are only looking for methods named _INI */
6530d02842fSSascha Wildner
654c1776041SSascha Wildner if (!ACPI_COMPARE_NAMESEG (Node->Name.Ascii, METHOD_NAME__INI))
6550d02842fSSascha Wildner {
6560d02842fSSascha Wildner return (AE_OK);
6570d02842fSSascha Wildner }
6580d02842fSSascha Wildner
6590d02842fSSascha Wildner /*
6600d02842fSSascha Wildner * The only _INI methods that we care about are those that are
6610d02842fSSascha Wildner * present under Device, Processor, and Thermal objects.
6620d02842fSSascha Wildner */
6630d02842fSSascha Wildner ParentNode = Node->Parent;
6640d02842fSSascha Wildner switch (ParentNode->Type)
6650d02842fSSascha Wildner {
6660d02842fSSascha Wildner case ACPI_TYPE_DEVICE:
6670d02842fSSascha Wildner case ACPI_TYPE_PROCESSOR:
6680d02842fSSascha Wildner case ACPI_TYPE_THERMAL:
6690d02842fSSascha Wildner
6700d02842fSSascha Wildner /* Mark parent and bubble up the INI present flag to the root */
6710d02842fSSascha Wildner
6720d02842fSSascha Wildner while (ParentNode)
6730d02842fSSascha Wildner {
6740d02842fSSascha Wildner ParentNode->Flags |= ANOBJ_SUBTREE_HAS_INI;
6750d02842fSSascha Wildner ParentNode = ParentNode->Parent;
6760d02842fSSascha Wildner }
6770d02842fSSascha Wildner break;
6780d02842fSSascha Wildner
6790d02842fSSascha Wildner default:
6800d02842fSSascha Wildner
6810d02842fSSascha Wildner break;
6820d02842fSSascha Wildner }
6830d02842fSSascha Wildner
6840d02842fSSascha Wildner return (AE_OK);
6850d02842fSSascha Wildner }
6860d02842fSSascha Wildner
6870d02842fSSascha Wildner
6880d02842fSSascha Wildner /*******************************************************************************
6890d02842fSSascha Wildner *
6900d02842fSSascha Wildner * FUNCTION: AcpiNsInitOneDevice
6910d02842fSSascha Wildner *
6920d02842fSSascha Wildner * PARAMETERS: ACPI_WALK_CALLBACK
6930d02842fSSascha Wildner *
6940d02842fSSascha Wildner * RETURN: ACPI_STATUS
6950d02842fSSascha Wildner *
6960d02842fSSascha Wildner * DESCRIPTION: This is called once per device soon after ACPI is enabled
6970d02842fSSascha Wildner * to initialize each device. It determines if the device is
6980d02842fSSascha Wildner * present, and if so, calls _INI.
6990d02842fSSascha Wildner *
7000d02842fSSascha Wildner ******************************************************************************/
7010d02842fSSascha Wildner
7020d02842fSSascha Wildner static ACPI_STATUS
AcpiNsInitOneDevice(ACPI_HANDLE ObjHandle,UINT32 NestingLevel,void * Context,void ** ReturnValue)7030d02842fSSascha Wildner AcpiNsInitOneDevice (
7040d02842fSSascha Wildner ACPI_HANDLE ObjHandle,
7050d02842fSSascha Wildner UINT32 NestingLevel,
7060d02842fSSascha Wildner void *Context,
7070d02842fSSascha Wildner void **ReturnValue)
7080d02842fSSascha Wildner {
7090d02842fSSascha Wildner ACPI_DEVICE_WALK_INFO *WalkInfo = ACPI_CAST_PTR (ACPI_DEVICE_WALK_INFO, Context);
7100d02842fSSascha Wildner ACPI_EVALUATE_INFO *Info = WalkInfo->EvaluateInfo;
7110d02842fSSascha Wildner UINT32 Flags;
7120d02842fSSascha Wildner ACPI_STATUS Status;
7130d02842fSSascha Wildner ACPI_NAMESPACE_NODE *DeviceNode;
7140d02842fSSascha Wildner
7150d02842fSSascha Wildner
7160d02842fSSascha Wildner ACPI_FUNCTION_TRACE (NsInitOneDevice);
7170d02842fSSascha Wildner
7180d02842fSSascha Wildner
7190d02842fSSascha Wildner /* We are interested in Devices, Processors and ThermalZones only */
7200d02842fSSascha Wildner
7210d02842fSSascha Wildner DeviceNode = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
7220d02842fSSascha Wildner if ((DeviceNode->Type != ACPI_TYPE_DEVICE) &&
7230d02842fSSascha Wildner (DeviceNode->Type != ACPI_TYPE_PROCESSOR) &&
7240d02842fSSascha Wildner (DeviceNode->Type != ACPI_TYPE_THERMAL))
7250d02842fSSascha Wildner {
7260d02842fSSascha Wildner return_ACPI_STATUS (AE_OK);
7270d02842fSSascha Wildner }
7280d02842fSSascha Wildner
7290d02842fSSascha Wildner /*
7300d02842fSSascha Wildner * Because of an earlier namespace analysis, all subtrees that contain an
7310d02842fSSascha Wildner * _INI method are tagged.
7320d02842fSSascha Wildner *
7330d02842fSSascha Wildner * If this device subtree does not contain any _INI methods, we
7340d02842fSSascha Wildner * can exit now and stop traversing this entire subtree.
7350d02842fSSascha Wildner */
7360d02842fSSascha Wildner if (!(DeviceNode->Flags & ANOBJ_SUBTREE_HAS_INI))
7370d02842fSSascha Wildner {
7380d02842fSSascha Wildner return_ACPI_STATUS (AE_CTRL_DEPTH);
7390d02842fSSascha Wildner }
7400d02842fSSascha Wildner
7410d02842fSSascha Wildner /*
7420d02842fSSascha Wildner * Run _STA to determine if this device is present and functioning. We
7430d02842fSSascha Wildner * must know this information for two important reasons (from ACPI spec):
7440d02842fSSascha Wildner *
7450d02842fSSascha Wildner * 1) We can only run _INI if the device is present.
7460d02842fSSascha Wildner * 2) We must abort the device tree walk on this subtree if the device is
7470d02842fSSascha Wildner * not present and is not functional (we will not examine the children)
7480d02842fSSascha Wildner *
7490d02842fSSascha Wildner * The _STA method is not required to be present under the device, we
7500d02842fSSascha Wildner * assume the device is present if _STA does not exist.
7510d02842fSSascha Wildner */
7520d02842fSSascha Wildner ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
7530d02842fSSascha Wildner ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__STA));
7540d02842fSSascha Wildner
7550d02842fSSascha Wildner Status = AcpiUtExecute_STA (DeviceNode, &Flags);
7560d02842fSSascha Wildner if (ACPI_FAILURE (Status))
7570d02842fSSascha Wildner {
7580d02842fSSascha Wildner /* Ignore error and move on to next device */
7590d02842fSSascha Wildner
7600d02842fSSascha Wildner return_ACPI_STATUS (AE_OK);
7610d02842fSSascha Wildner }
7620d02842fSSascha Wildner
7630d02842fSSascha Wildner /*
7640d02842fSSascha Wildner * Flags == -1 means that _STA was not found. In this case, we assume that
7650d02842fSSascha Wildner * the device is both present and functional.
7660d02842fSSascha Wildner *
7670d02842fSSascha Wildner * From the ACPI spec, description of _STA:
7680d02842fSSascha Wildner *
7690d02842fSSascha Wildner * "If a device object (including the processor object) does not have an
7700d02842fSSascha Wildner * _STA object, then OSPM assumes that all of the above bits are set (in
7710d02842fSSascha Wildner * other words, the device is present, ..., and functioning)"
7720d02842fSSascha Wildner */
7730d02842fSSascha Wildner if (Flags != ACPI_UINT32_MAX)
7740d02842fSSascha Wildner {
7750d02842fSSascha Wildner WalkInfo->Num_STA++;
7760d02842fSSascha Wildner }
7770d02842fSSascha Wildner
7780d02842fSSascha Wildner /*
7790d02842fSSascha Wildner * Examine the PRESENT and FUNCTIONING status bits
7800d02842fSSascha Wildner *
7810d02842fSSascha Wildner * Note: ACPI spec does not seem to specify behavior for the present but
7820d02842fSSascha Wildner * not functioning case, so we assume functioning if present.
7830d02842fSSascha Wildner */
7840d02842fSSascha Wildner if (!(Flags & ACPI_STA_DEVICE_PRESENT))
7850d02842fSSascha Wildner {
7860d02842fSSascha Wildner /* Device is not present, we must examine the Functioning bit */
7870d02842fSSascha Wildner
7880d02842fSSascha Wildner if (Flags & ACPI_STA_DEVICE_FUNCTIONING)
7890d02842fSSascha Wildner {
7900d02842fSSascha Wildner /*
7910d02842fSSascha Wildner * Device is not present but is "functioning". In this case,
7920d02842fSSascha Wildner * we will not run _INI, but we continue to examine the children
7930d02842fSSascha Wildner * of this device.
7940d02842fSSascha Wildner *
7950d02842fSSascha Wildner * From the ACPI spec, description of _STA: (Note - no mention
7960d02842fSSascha Wildner * of whether to run _INI or not on the device in question)
7970d02842fSSascha Wildner *
7980d02842fSSascha Wildner * "_STA may return bit 0 clear (not present) with bit 3 set
7990d02842fSSascha Wildner * (device is functional). This case is used to indicate a valid
8000d02842fSSascha Wildner * device for which no device driver should be loaded (for example,
8010d02842fSSascha Wildner * a bridge device.) Children of this device may be present and
8020d02842fSSascha Wildner * valid. OSPM should continue enumeration below a device whose
8030d02842fSSascha Wildner * _STA returns this bit combination"
8040d02842fSSascha Wildner */
8050d02842fSSascha Wildner return_ACPI_STATUS (AE_OK);
8060d02842fSSascha Wildner }
8070d02842fSSascha Wildner else
8080d02842fSSascha Wildner {
8090d02842fSSascha Wildner /*
8100d02842fSSascha Wildner * Device is not present and is not functioning. We must abort the
8110d02842fSSascha Wildner * walk of this subtree immediately -- don't look at the children
8120d02842fSSascha Wildner * of such a device.
8130d02842fSSascha Wildner *
8140d02842fSSascha Wildner * From the ACPI spec, description of _INI:
8150d02842fSSascha Wildner *
8160d02842fSSascha Wildner * "If the _STA method indicates that the device is not present,
8170d02842fSSascha Wildner * OSPM will not run the _INI and will not examine the children
8180d02842fSSascha Wildner * of the device for _INI methods"
8190d02842fSSascha Wildner */
8200d02842fSSascha Wildner return_ACPI_STATUS (AE_CTRL_DEPTH);
8210d02842fSSascha Wildner }
8220d02842fSSascha Wildner }
8230d02842fSSascha Wildner
8240d02842fSSascha Wildner /*
8250d02842fSSascha Wildner * The device is present or is assumed present if no _STA exists.
8260d02842fSSascha Wildner * Run the _INI if it exists (not required to exist)
8270d02842fSSascha Wildner *
8280d02842fSSascha Wildner * Note: We know there is an _INI within this subtree, but it may not be
8290d02842fSSascha Wildner * under this particular device, it may be lower in the branch.
8300d02842fSSascha Wildner */
831c1776041SSascha Wildner if (!ACPI_COMPARE_NAMESEG (DeviceNode->Name.Ascii, "_SB_") ||
8322ffe9f16SSascha Wildner DeviceNode->Parent != AcpiGbl_RootNode)
8332ffe9f16SSascha Wildner {
8340d02842fSSascha Wildner ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
8350d02842fSSascha Wildner ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__INI));
8360d02842fSSascha Wildner
83725ca8c79SSascha Wildner memset (Info, 0, sizeof (ACPI_EVALUATE_INFO));
8380d02842fSSascha Wildner Info->PrefixNode = DeviceNode;
8390d02842fSSascha Wildner Info->RelativePathname = METHOD_NAME__INI;
8400d02842fSSascha Wildner Info->Parameters = NULL;
8410d02842fSSascha Wildner Info->Flags = ACPI_IGNORE_RETURN_VALUE;
8420d02842fSSascha Wildner
8430d02842fSSascha Wildner Status = AcpiNsEvaluate (Info);
8440d02842fSSascha Wildner if (ACPI_SUCCESS (Status))
8450d02842fSSascha Wildner {
8460d02842fSSascha Wildner WalkInfo->Num_INI++;
8470d02842fSSascha Wildner }
8480d02842fSSascha Wildner
8490d02842fSSascha Wildner #ifdef ACPI_DEBUG_OUTPUT
8500d02842fSSascha Wildner else if (Status != AE_NOT_FOUND)
8510d02842fSSascha Wildner {
8520d02842fSSascha Wildner /* Ignore error and move on to next device */
8530d02842fSSascha Wildner
854820c5b08SSascha Wildner char *ScopeName = AcpiNsGetNormalizedPathname (DeviceNode, TRUE);
8550d02842fSSascha Wildner
8560d02842fSSascha Wildner ACPI_EXCEPTION ((AE_INFO, Status, "during %s._INI execution",
8570d02842fSSascha Wildner ScopeName));
8580d02842fSSascha Wildner ACPI_FREE (ScopeName);
8590d02842fSSascha Wildner }
8600d02842fSSascha Wildner #endif
8612ffe9f16SSascha Wildner }
8620d02842fSSascha Wildner
8630d02842fSSascha Wildner /* Ignore errors from above */
8640d02842fSSascha Wildner
8650d02842fSSascha Wildner Status = AE_OK;
8660d02842fSSascha Wildner
8670d02842fSSascha Wildner /*
8680d02842fSSascha Wildner * The _INI method has been run if present; call the Global Initialization
8690d02842fSSascha Wildner * Handler for this device.
8700d02842fSSascha Wildner */
8710d02842fSSascha Wildner if (AcpiGbl_InitHandler)
8720d02842fSSascha Wildner {
8730d02842fSSascha Wildner Status = AcpiGbl_InitHandler (DeviceNode, ACPI_INIT_DEVICE_INI);
8740d02842fSSascha Wildner }
8750d02842fSSascha Wildner
8760d02842fSSascha Wildner return_ACPI_STATUS (Status);
8770d02842fSSascha Wildner }
878