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1498 | serge | 1 | /****************************************************************************** |
2 | * |
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3 | * Module Name: dsinit - Object initialization namespace walk |
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4 | * |
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5 | *****************************************************************************/ |
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6 | |||
7 | /****************************************************************************** |
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8 | * |
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9 | * 1. Copyright Notice |
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10 | * |
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2216 | Serge | 11 | * Some or all of this work - Copyright (c) 1999 - 2011, Intel Corp. |
1498 | serge | 12 | * All rights reserved. |
13 | * |
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14 | * 2. License |
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15 | * |
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16 | * 2.1. This is your license from Intel Corp. under its intellectual property |
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17 | * rights. You may have additional license terms from the party that provided |
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18 | * you this software, covering your right to use that party's intellectual |
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19 | * property rights. |
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20 | * |
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21 | * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a |
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22 | * copy of the source code appearing in this file ("Covered Code") an |
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23 | * irrevocable, perpetual, worldwide license under Intel's copyrights in the |
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24 | * base code distributed originally by Intel ("Original Intel Code") to copy, |
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25 | * make derivatives, distribute, use and display any portion of the Covered |
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26 | * Code in any form, with the right to sublicense such rights; and |
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27 | * |
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28 | * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent |
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29 | * license (with the right to sublicense), under only those claims of Intel |
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30 | * patents that are infringed by the Original Intel Code, to make, use, sell, |
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31 | * offer to sell, and import the Covered Code and derivative works thereof |
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32 | * solely to the minimum extent necessary to exercise the above copyright |
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33 | * license, and in no event shall the patent license extend to any additions |
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34 | * to or modifications of the Original Intel Code. No other license or right |
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35 | * is granted directly or by implication, estoppel or otherwise; |
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36 | * |
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37 | * The above copyright and patent license is granted only if the following |
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38 | * conditions are met: |
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39 | * |
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40 | * 3. Conditions |
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41 | * |
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42 | * 3.1. Redistribution of Source with Rights to Further Distribute Source. |
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43 | * Redistribution of source code of any substantial portion of the Covered |
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44 | * Code or modification with rights to further distribute source must include |
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45 | * the above Copyright Notice, the above License, this list of Conditions, |
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46 | * and the following Disclaimer and Export Compliance provision. In addition, |
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47 | * Licensee must cause all Covered Code to which Licensee contributes to |
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48 | * contain a file documenting the changes Licensee made to create that Covered |
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49 | * Code and the date of any change. Licensee must include in that file the |
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50 | * documentation of any changes made by any predecessor Licensee. Licensee |
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51 | * must include a prominent statement that the modification is derived, |
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52 | * directly or indirectly, from Original Intel Code. |
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53 | * |
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54 | * 3.2. Redistribution of Source with no Rights to Further Distribute Source. |
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55 | * Redistribution of source code of any substantial portion of the Covered |
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56 | * Code or modification without rights to further distribute source must |
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57 | * include the following Disclaimer and Export Compliance provision in the |
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58 | * documentation and/or other materials provided with distribution. In |
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59 | * addition, Licensee may not authorize further sublicense of source of any |
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60 | * portion of the Covered Code, and must include terms to the effect that the |
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61 | * license from Licensee to its licensee is limited to the intellectual |
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62 | * property embodied in the software Licensee provides to its licensee, and |
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63 | * not to intellectual property embodied in modifications its licensee may |
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64 | * make. |
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65 | * |
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66 | * 3.3. Redistribution of Executable. Redistribution in executable form of any |
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67 | * substantial portion of the Covered Code or modification must reproduce the |
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68 | * above Copyright Notice, and the following Disclaimer and Export Compliance |
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69 | * provision in the documentation and/or other materials provided with the |
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70 | * distribution. |
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71 | * |
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72 | * 3.4. Intel retains all right, title, and interest in and to the Original |
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73 | * Intel Code. |
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74 | * |
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75 | * 3.5. Neither the name Intel nor any other trademark owned or controlled by |
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76 | * Intel shall be used in advertising or otherwise to promote the sale, use or |
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77 | * other dealings in products derived from or relating to the Covered Code |
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78 | * without prior written authorization from Intel. |
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79 | * |
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80 | * 4. Disclaimer and Export Compliance |
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81 | * |
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82 | * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED |
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83 | * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE |
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84 | * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, |
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85 | * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY |
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86 | * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY |
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87 | * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A |
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88 | * PARTICULAR PURPOSE. |
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89 | * |
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90 | * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES |
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91 | * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR |
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92 | * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, |
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93 | * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY |
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94 | * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL |
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95 | * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS |
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96 | * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY |
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97 | * LIMITED REMEDY. |
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98 | * |
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99 | * 4.3. Licensee shall not export, either directly or indirectly, any of this |
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100 | * software or system incorporating such software without first obtaining any |
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101 | * required license or other approval from the U. S. Department of Commerce or |
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102 | * any other agency or department of the United States Government. In the |
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103 | * event Licensee exports any such software from the United States or |
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104 | * re-exports any such software from a foreign destination, Licensee shall |
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105 | * ensure that the distribution and export/re-export of the software is in |
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106 | * compliance with all laws, regulations, orders, or other restrictions of the |
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107 | * U.S. Export Administration Regulations. Licensee agrees that neither it nor |
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108 | * any of its subsidiaries will export/re-export any technical data, process, |
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109 | * software, or service, directly or indirectly, to any country for which the |
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110 | * United States government or any agency thereof requires an export license, |
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111 | * other governmental approval, or letter of assurance, without first obtaining |
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112 | * such license, approval or letter. |
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113 | * |
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114 | *****************************************************************************/ |
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115 | |||
116 | #define __DSINIT_C__ |
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117 | |||
118 | #include "acpi.h" |
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119 | #include "accommon.h" |
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120 | #include "acdispat.h" |
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121 | #include "acnamesp.h" |
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122 | #include "actables.h" |
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123 | |||
124 | #define _COMPONENT ACPI_DISPATCHER |
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125 | ACPI_MODULE_NAME ("dsinit") |
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126 | |||
127 | /* Local prototypes */ |
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128 | |||
129 | static ACPI_STATUS |
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130 | AcpiDsInitOneObject ( |
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131 | ACPI_HANDLE ObjHandle, |
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132 | UINT32 Level, |
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133 | void *Context, |
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134 | void **ReturnValue); |
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135 | |||
136 | |||
137 | /******************************************************************************* |
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138 | * |
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139 | * FUNCTION: AcpiDsInitOneObject |
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140 | * |
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141 | * PARAMETERS: ObjHandle - Node for the object |
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142 | * Level - Current nesting level |
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143 | * Context - Points to a init info struct |
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144 | * ReturnValue - Not used |
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145 | * |
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146 | * RETURN: Status |
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147 | * |
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148 | * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object |
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149 | * within the namespace. |
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150 | * |
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151 | * Currently, the only objects that require initialization are: |
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152 | * 1) Methods |
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153 | * 2) Operation Regions |
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154 | * |
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155 | ******************************************************************************/ |
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156 | |||
157 | static ACPI_STATUS |
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158 | AcpiDsInitOneObject ( |
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159 | ACPI_HANDLE ObjHandle, |
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160 | UINT32 Level, |
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161 | void *Context, |
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162 | void **ReturnValue) |
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163 | { |
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164 | ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context; |
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165 | ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; |
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166 | ACPI_OBJECT_TYPE Type; |
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167 | ACPI_STATUS Status; |
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168 | |||
169 | |||
170 | ACPI_FUNCTION_ENTRY (); |
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171 | |||
172 | |||
173 | /* |
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174 | * We are only interested in NS nodes owned by the table that |
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175 | * was just loaded |
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176 | */ |
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177 | if (Node->OwnerId != Info->OwnerId) |
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178 | { |
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179 | return (AE_OK); |
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180 | } |
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181 | |||
182 | Info->ObjectCount++; |
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183 | |||
184 | /* And even then, we are only interested in a few object types */ |
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185 | |||
186 | Type = AcpiNsGetType (ObjHandle); |
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187 | |||
188 | switch (Type) |
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189 | { |
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190 | case ACPI_TYPE_REGION: |
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191 | |||
192 | Status = AcpiDsInitializeRegion (ObjHandle); |
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193 | if (ACPI_FAILURE (Status)) |
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194 | { |
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195 | ACPI_EXCEPTION ((AE_INFO, Status, |
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196 | "During Region initialization %p [%4.4s]", |
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197 | ObjHandle, AcpiUtGetNodeName (ObjHandle))); |
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198 | } |
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199 | |||
200 | Info->OpRegionCount++; |
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201 | break; |
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202 | |||
203 | |||
204 | case ACPI_TYPE_METHOD: |
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205 | |||
206 | Info->MethodCount++; |
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207 | break; |
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208 | |||
209 | |||
210 | case ACPI_TYPE_DEVICE: |
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211 | |||
212 | Info->DeviceCount++; |
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213 | break; |
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214 | |||
215 | |||
216 | default: |
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217 | break; |
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218 | } |
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219 | |||
220 | /* |
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221 | * We ignore errors from above, and always return OK, since |
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222 | * we don't want to abort the walk on a single error. |
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223 | */ |
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224 | return (AE_OK); |
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225 | } |
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226 | |||
227 | |||
228 | /******************************************************************************* |
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229 | * |
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230 | * FUNCTION: AcpiDsInitializeObjects |
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231 | * |
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232 | * PARAMETERS: TableDesc - Descriptor for parent ACPI table |
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233 | * StartNode - Root of subtree to be initialized. |
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234 | * |
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235 | * RETURN: Status |
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236 | * |
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237 | * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any |
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238 | * necessary initialization on the objects found therein |
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239 | * |
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240 | ******************************************************************************/ |
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241 | |||
242 | ACPI_STATUS |
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243 | AcpiDsInitializeObjects ( |
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244 | UINT32 TableIndex, |
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245 | ACPI_NAMESPACE_NODE *StartNode) |
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246 | { |
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247 | ACPI_STATUS Status; |
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248 | ACPI_INIT_WALK_INFO Info; |
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249 | ACPI_TABLE_HEADER *Table; |
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250 | ACPI_OWNER_ID OwnerId; |
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251 | |||
252 | |||
253 | ACPI_FUNCTION_TRACE (DsInitializeObjects); |
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254 | |||
255 | |||
256 | Status = AcpiTbGetOwnerId (TableIndex, &OwnerId); |
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257 | if (ACPI_FAILURE (Status)) |
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258 | { |
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259 | return_ACPI_STATUS (Status); |
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260 | } |
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261 | |||
262 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
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263 | "**** Starting initialization of namespace objects ****\n")); |
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264 | ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "Parsing all Control Methods:")); |
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265 | |||
266 | /* Set all init info to zero */ |
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267 | |||
268 | ACPI_MEMSET (&Info, 0, sizeof (ACPI_INIT_WALK_INFO)); |
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269 | |||
270 | Info.OwnerId = OwnerId; |
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271 | Info.TableIndex = TableIndex; |
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272 | |||
273 | /* Walk entire namespace from the supplied root */ |
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274 | |||
275 | Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); |
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276 | if (ACPI_FAILURE (Status)) |
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277 | { |
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278 | return_ACPI_STATUS (Status); |
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279 | } |
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280 | |||
281 | /* |
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282 | * We don't use AcpiWalkNamespace since we do not want to acquire |
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283 | * the namespace reader lock. |
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284 | */ |
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285 | Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, StartNode, ACPI_UINT32_MAX, |
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286 | ACPI_NS_WALK_UNLOCK, AcpiDsInitOneObject, NULL, &Info, NULL); |
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287 | if (ACPI_FAILURE (Status)) |
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288 | { |
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289 | ACPI_EXCEPTION ((AE_INFO, Status, "During WalkNamespace")); |
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290 | } |
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291 | (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); |
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292 | |||
293 | Status = AcpiGetTableByIndex (TableIndex, &Table); |
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294 | if (ACPI_FAILURE (Status)) |
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295 | { |
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296 | return_ACPI_STATUS (Status); |
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297 | } |
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298 | |||
299 | ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, |
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300 | "\nTable [%4.4s](id %4.4X) - %u Objects with %u Devices %u Methods %u Regions\n", |
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301 | Table->Signature, OwnerId, Info.ObjectCount, |
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302 | Info.DeviceCount, Info.MethodCount, Info.OpRegionCount)); |
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303 | |||
304 | ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, |
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305 | "%u Methods, %u Regions\n", Info.MethodCount, Info.OpRegionCount)); |
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306 | |||
307 | return_ACPI_STATUS (AE_OK); |
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308 | } |
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309 |