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Rev | Author | Line No. | Line |
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1498 | serge | 1 | /****************************************************************************** |
2 | * |
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3 | * Module Name: tbinstal - ACPI table installation and removal |
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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 | |||
117 | #define __TBINSTAL_C__ |
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118 | |||
119 | #include "acpi.h" |
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120 | #include "accommon.h" |
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121 | #include "acnamesp.h" |
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122 | #include "actables.h" |
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123 | |||
124 | |||
125 | #define _COMPONENT ACPI_TABLES |
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126 | ACPI_MODULE_NAME ("tbinstal") |
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127 | |||
128 | |||
129 | /****************************************************************************** |
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130 | * |
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131 | * FUNCTION: AcpiTbVerifyTable |
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132 | * |
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133 | * PARAMETERS: TableDesc - table |
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134 | * |
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135 | * RETURN: Status |
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136 | * |
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137 | * DESCRIPTION: this function is called to verify and map table |
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138 | * |
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139 | *****************************************************************************/ |
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140 | |||
141 | ACPI_STATUS |
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142 | AcpiTbVerifyTable ( |
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143 | ACPI_TABLE_DESC *TableDesc) |
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144 | { |
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145 | ACPI_STATUS Status = AE_OK; |
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146 | |||
147 | |||
148 | ACPI_FUNCTION_TRACE (TbVerifyTable); |
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149 | |||
150 | |||
151 | /* Map the table if necessary */ |
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152 | |||
153 | if (!TableDesc->Pointer) |
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154 | { |
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155 | if ((TableDesc->Flags & ACPI_TABLE_ORIGIN_MASK) == |
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156 | ACPI_TABLE_ORIGIN_MAPPED) |
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157 | { |
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158 | TableDesc->Pointer = AcpiOsMapMemory ( |
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159 | TableDesc->Address, TableDesc->Length); |
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160 | } |
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161 | |||
162 | if (!TableDesc->Pointer) |
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163 | { |
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164 | return_ACPI_STATUS (AE_NO_MEMORY); |
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165 | } |
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166 | } |
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167 | |||
168 | /* FACS is the odd table, has no standard ACPI header and no checksum */ |
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169 | |||
170 | if (!ACPI_COMPARE_NAME (&TableDesc->Signature, ACPI_SIG_FACS)) |
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171 | { |
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172 | /* Always calculate checksum, ignore bad checksum if requested */ |
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173 | |||
174 | Status = AcpiTbVerifyChecksum (TableDesc->Pointer, TableDesc->Length); |
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175 | } |
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176 | |||
177 | return_ACPI_STATUS (Status); |
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178 | } |
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179 | |||
180 | |||
181 | /******************************************************************************* |
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182 | * |
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183 | * FUNCTION: AcpiTbAddTable |
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184 | * |
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185 | * PARAMETERS: TableDesc - Table descriptor |
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186 | * TableIndex - Where the table index is returned |
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187 | * |
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188 | * RETURN: Status |
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189 | * |
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190 | * DESCRIPTION: This function is called to add an ACPI table. It is used to |
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191 | * dynamically load tables via the Load and LoadTable AML |
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192 | * operators. |
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193 | * |
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194 | ******************************************************************************/ |
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195 | |||
196 | ACPI_STATUS |
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197 | AcpiTbAddTable ( |
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198 | ACPI_TABLE_DESC *TableDesc, |
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199 | UINT32 *TableIndex) |
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200 | { |
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201 | UINT32 i; |
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202 | ACPI_STATUS Status = AE_OK; |
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203 | ACPI_TABLE_HEADER *OverrideTable = NULL; |
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204 | |||
205 | |||
206 | ACPI_FUNCTION_TRACE (TbAddTable); |
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207 | |||
208 | |||
209 | if (!TableDesc->Pointer) |
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210 | { |
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211 | Status = AcpiTbVerifyTable (TableDesc); |
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212 | if (ACPI_FAILURE (Status) || !TableDesc->Pointer) |
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213 | { |
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214 | return_ACPI_STATUS (Status); |
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215 | } |
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216 | } |
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217 | |||
218 | /* |
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2216 | Serge | 219 | * Validate the incoming table signature. |
220 | * |
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221 | * 1) Originally, we checked the table signature for "SSDT" or "PSDT". |
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222 | * 2) We added support for OEMx tables, signature "OEM". |
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223 | * 3) Valid tables were encountered with a null signature, so we just |
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224 | * gave up on validating the signature, (05/2008). |
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225 | * 4) We encountered non-AML tables such as the MADT, which caused |
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226 | * interpreter errors and kernel faults. So now, we once again allow |
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227 | * only "SSDT", "OEMx", and now, also a null signature. (05/2011). |
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1498 | serge | 228 | */ |
2216 | Serge | 229 | if ((TableDesc->Pointer->Signature[0] != 0x00) && |
230 | (!ACPI_COMPARE_NAME (TableDesc->Pointer->Signature, ACPI_SIG_SSDT)) && |
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231 | (ACPI_STRNCMP (TableDesc->Pointer->Signature, "OEM", 3))) |
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232 | { |
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233 | ACPI_ERROR ((AE_INFO, |
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234 | "Table has invalid signature [%4.4s] (0x%8.8X), must be SSDT or OEMx", |
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235 | AcpiUtValidAcpiName (*(UINT32 *) TableDesc->Pointer->Signature) ? |
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236 | TableDesc->Pointer->Signature : "????", |
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237 | *(UINT32 *) TableDesc->Pointer->Signature)); |
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1498 | serge | 238 | |
2216 | Serge | 239 | return_ACPI_STATUS (AE_BAD_SIGNATURE); |
240 | } |
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241 | |||
1498 | serge | 242 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
243 | |||
244 | /* Check if table is already registered */ |
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245 | |||
246 | for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i) |
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247 | { |
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248 | if (!AcpiGbl_RootTableList.Tables[i].Pointer) |
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249 | { |
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250 | Status = AcpiTbVerifyTable (&AcpiGbl_RootTableList.Tables[i]); |
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251 | if (ACPI_FAILURE (Status) || |
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252 | !AcpiGbl_RootTableList.Tables[i].Pointer) |
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253 | { |
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254 | continue; |
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255 | } |
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256 | } |
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257 | |||
258 | /* |
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259 | * Check for a table match on the entire table length, |
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260 | * not just the header. |
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261 | */ |
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262 | if (TableDesc->Length != AcpiGbl_RootTableList.Tables[i].Length) |
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263 | { |
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264 | continue; |
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265 | } |
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266 | |||
267 | if (ACPI_MEMCMP (TableDesc->Pointer, |
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268 | AcpiGbl_RootTableList.Tables[i].Pointer, |
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269 | AcpiGbl_RootTableList.Tables[i].Length)) |
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270 | { |
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271 | continue; |
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272 | } |
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273 | |||
274 | /* |
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275 | * Note: the current mechanism does not unregister a table if it is |
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276 | * dynamically unloaded. The related namespace entries are deleted, |
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277 | * but the table remains in the root table list. |
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278 | * |
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279 | * The assumption here is that the number of different tables that |
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280 | * will be loaded is actually small, and there is minimal overhead |
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281 | * in just keeping the table in case it is needed again. |
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282 | * |
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283 | * If this assumption changes in the future (perhaps on large |
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284 | * machines with many table load/unload operations), tables will |
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285 | * need to be unregistered when they are unloaded, and slots in the |
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286 | * root table list should be reused when empty. |
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287 | */ |
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288 | |||
289 | /* |
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290 | * Table is already registered. |
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291 | * We can delete the table that was passed as a parameter. |
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292 | */ |
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293 | AcpiTbDeleteTable (TableDesc); |
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294 | *TableIndex = i; |
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295 | |||
296 | if (AcpiGbl_RootTableList.Tables[i].Flags & ACPI_TABLE_IS_LOADED) |
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297 | { |
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298 | /* Table is still loaded, this is an error */ |
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299 | |||
300 | Status = AE_ALREADY_EXISTS; |
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301 | goto Release; |
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302 | } |
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303 | else |
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304 | { |
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305 | /* Table was unloaded, allow it to be reloaded */ |
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306 | |||
307 | TableDesc->Pointer = AcpiGbl_RootTableList.Tables[i].Pointer; |
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308 | TableDesc->Address = AcpiGbl_RootTableList.Tables[i].Address; |
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309 | Status = AE_OK; |
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310 | goto PrintHeader; |
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311 | } |
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312 | } |
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313 | |||
314 | /* |
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315 | * ACPI Table Override: |
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316 | * Allow the host to override dynamically loaded tables. |
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317 | */ |
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318 | Status = AcpiOsTableOverride (TableDesc->Pointer, &OverrideTable); |
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319 | if (ACPI_SUCCESS (Status) && OverrideTable) |
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320 | { |
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321 | ACPI_INFO ((AE_INFO, |
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322 | "%4.4s @ 0x%p Table override, replaced with:", |
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323 | TableDesc->Pointer->Signature, |
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324 | ACPI_CAST_PTR (void, TableDesc->Address))); |
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325 | |||
326 | /* We can delete the table that was passed as a parameter */ |
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327 | |||
328 | AcpiTbDeleteTable (TableDesc); |
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329 | |||
330 | /* Setup descriptor for the new table */ |
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331 | |||
332 | TableDesc->Address = ACPI_PTR_TO_PHYSADDR (OverrideTable); |
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333 | TableDesc->Pointer = OverrideTable; |
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334 | TableDesc->Length = OverrideTable->Length; |
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335 | TableDesc->Flags = ACPI_TABLE_ORIGIN_OVERRIDE; |
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336 | } |
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337 | |||
338 | /* Add the table to the global root table list */ |
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339 | |||
340 | Status = AcpiTbStoreTable (TableDesc->Address, TableDesc->Pointer, |
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341 | TableDesc->Length, TableDesc->Flags, TableIndex); |
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342 | if (ACPI_FAILURE (Status)) |
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343 | { |
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344 | goto Release; |
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345 | } |
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346 | |||
347 | PrintHeader: |
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348 | AcpiTbPrintTableHeader (TableDesc->Address, TableDesc->Pointer); |
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349 | |||
350 | Release: |
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351 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
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352 | return_ACPI_STATUS (Status); |
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353 | } |
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354 | |||
355 | |||
356 | /******************************************************************************* |
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357 | * |
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358 | * FUNCTION: AcpiTbResizeRootTableList |
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359 | * |
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360 | * PARAMETERS: None |
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361 | * |
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362 | * RETURN: Status |
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363 | * |
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364 | * DESCRIPTION: Expand the size of global table array |
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365 | * |
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366 | ******************************************************************************/ |
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367 | |||
368 | ACPI_STATUS |
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369 | AcpiTbResizeRootTableList ( |
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370 | void) |
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371 | { |
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372 | ACPI_TABLE_DESC *Tables; |
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373 | |||
374 | |||
375 | ACPI_FUNCTION_TRACE (TbResizeRootTableList); |
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376 | |||
377 | |||
378 | /* AllowResize flag is a parameter to AcpiInitializeTables */ |
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379 | |||
380 | if (!(AcpiGbl_RootTableList.Flags & ACPI_ROOT_ALLOW_RESIZE)) |
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381 | { |
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382 | ACPI_ERROR ((AE_INFO, "Resize of Root Table Array is not allowed")); |
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383 | return_ACPI_STATUS (AE_SUPPORT); |
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384 | } |
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385 | |||
386 | /* Increase the Table Array size */ |
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387 | |||
388 | Tables = ACPI_ALLOCATE_ZEROED ( |
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389 | ((ACPI_SIZE) AcpiGbl_RootTableList.MaxTableCount + |
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390 | ACPI_ROOT_TABLE_SIZE_INCREMENT) * |
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391 | sizeof (ACPI_TABLE_DESC)); |
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392 | if (!Tables) |
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393 | { |
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394 | ACPI_ERROR ((AE_INFO, "Could not allocate new root table array")); |
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395 | return_ACPI_STATUS (AE_NO_MEMORY); |
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396 | } |
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397 | |||
398 | /* Copy and free the previous table array */ |
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399 | |||
400 | if (AcpiGbl_RootTableList.Tables) |
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401 | { |
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402 | ACPI_MEMCPY (Tables, AcpiGbl_RootTableList.Tables, |
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403 | (ACPI_SIZE) AcpiGbl_RootTableList.MaxTableCount * sizeof (ACPI_TABLE_DESC)); |
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404 | |||
405 | if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED) |
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406 | { |
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407 | ACPI_FREE (AcpiGbl_RootTableList.Tables); |
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408 | } |
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409 | } |
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410 | |||
411 | AcpiGbl_RootTableList.Tables = Tables; |
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412 | AcpiGbl_RootTableList.MaxTableCount += ACPI_ROOT_TABLE_SIZE_INCREMENT; |
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413 | AcpiGbl_RootTableList.Flags |= (UINT8) ACPI_ROOT_ORIGIN_ALLOCATED; |
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414 | |||
415 | return_ACPI_STATUS (AE_OK); |
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416 | } |
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417 | |||
418 | |||
419 | /******************************************************************************* |
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420 | * |
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421 | * FUNCTION: AcpiTbStoreTable |
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422 | * |
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423 | * PARAMETERS: Address - Table address |
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424 | * Table - Table header |
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425 | * Length - Table length |
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426 | * Flags - flags |
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427 | * |
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428 | * RETURN: Status and table index. |
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429 | * |
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430 | * DESCRIPTION: Add an ACPI table to the global table list |
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431 | * |
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432 | ******************************************************************************/ |
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433 | |||
434 | ACPI_STATUS |
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435 | AcpiTbStoreTable ( |
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436 | ACPI_PHYSICAL_ADDRESS Address, |
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437 | ACPI_TABLE_HEADER *Table, |
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438 | UINT32 Length, |
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439 | UINT8 Flags, |
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440 | UINT32 *TableIndex) |
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441 | { |
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442 | ACPI_STATUS Status; |
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443 | ACPI_TABLE_DESC *NewTable; |
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444 | |||
445 | |||
446 | /* Ensure that there is room for the table in the Root Table List */ |
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447 | |||
448 | if (AcpiGbl_RootTableList.CurrentTableCount >= |
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449 | AcpiGbl_RootTableList.MaxTableCount) |
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450 | { |
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451 | Status = AcpiTbResizeRootTableList(); |
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452 | if (ACPI_FAILURE (Status)) |
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453 | { |
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454 | return (Status); |
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455 | } |
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456 | } |
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457 | |||
458 | NewTable = &AcpiGbl_RootTableList.Tables[AcpiGbl_RootTableList.CurrentTableCount]; |
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459 | |||
460 | /* Initialize added table */ |
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461 | |||
462 | NewTable->Address = Address; |
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463 | NewTable->Pointer = Table; |
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464 | NewTable->Length = Length; |
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465 | NewTable->OwnerId = 0; |
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466 | NewTable->Flags = Flags; |
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467 | |||
468 | ACPI_MOVE_32_TO_32 (&NewTable->Signature, Table->Signature); |
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469 | |||
470 | *TableIndex = AcpiGbl_RootTableList.CurrentTableCount; |
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471 | AcpiGbl_RootTableList.CurrentTableCount++; |
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472 | return (AE_OK); |
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473 | } |
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474 | |||
475 | |||
476 | /******************************************************************************* |
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477 | * |
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478 | * FUNCTION: AcpiTbDeleteTable |
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479 | * |
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480 | * PARAMETERS: TableIndex - Table index |
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481 | * |
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482 | * RETURN: None |
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483 | * |
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484 | * DESCRIPTION: Delete one internal ACPI table |
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485 | * |
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486 | ******************************************************************************/ |
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487 | |||
488 | void |
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489 | AcpiTbDeleteTable ( |
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490 | ACPI_TABLE_DESC *TableDesc) |
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491 | { |
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492 | |||
493 | /* Table must be mapped or allocated */ |
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494 | |||
495 | if (!TableDesc->Pointer) |
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496 | { |
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497 | return; |
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498 | } |
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499 | |||
500 | switch (TableDesc->Flags & ACPI_TABLE_ORIGIN_MASK) |
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501 | { |
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502 | case ACPI_TABLE_ORIGIN_MAPPED: |
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503 | AcpiOsUnmapMemory (TableDesc->Pointer, TableDesc->Length); |
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504 | break; |
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505 | |||
506 | case ACPI_TABLE_ORIGIN_ALLOCATED: |
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507 | ACPI_FREE (TableDesc->Pointer); |
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508 | break; |
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509 | |||
510 | default: |
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511 | break; |
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512 | } |
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513 | |||
514 | TableDesc->Pointer = NULL; |
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515 | } |
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516 | |||
517 | |||
518 | /******************************************************************************* |
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519 | * |
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520 | * FUNCTION: AcpiTbTerminate |
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521 | * |
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522 | * PARAMETERS: None |
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523 | * |
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524 | * RETURN: None |
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525 | * |
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526 | * DESCRIPTION: Delete all internal ACPI tables |
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527 | * |
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528 | ******************************************************************************/ |
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529 | |||
530 | void |
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531 | AcpiTbTerminate ( |
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532 | void) |
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533 | { |
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534 | UINT32 i; |
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535 | |||
536 | |||
537 | ACPI_FUNCTION_TRACE (TbTerminate); |
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538 | |||
539 | |||
540 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
||
541 | |||
542 | /* Delete the individual tables */ |
||
543 | |||
544 | for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++) |
||
545 | { |
||
546 | AcpiTbDeleteTable (&AcpiGbl_RootTableList.Tables[i]); |
||
547 | } |
||
548 | |||
549 | /* |
||
550 | * Delete the root table array if allocated locally. Array cannot be |
||
551 | * mapped, so we don't need to check for that flag. |
||
552 | */ |
||
553 | if (AcpiGbl_RootTableList.Flags & ACPI_ROOT_ORIGIN_ALLOCATED) |
||
554 | { |
||
555 | ACPI_FREE (AcpiGbl_RootTableList.Tables); |
||
556 | } |
||
557 | |||
558 | AcpiGbl_RootTableList.Tables = NULL; |
||
559 | AcpiGbl_RootTableList.Flags = 0; |
||
560 | AcpiGbl_RootTableList.CurrentTableCount = 0; |
||
561 | |||
562 | ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "ACPI Tables freed\n")); |
||
563 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
||
564 | } |
||
565 | |||
566 | |||
567 | /******************************************************************************* |
||
568 | * |
||
569 | * FUNCTION: AcpiTbDeleteNamespaceByOwner |
||
570 | * |
||
571 | * PARAMETERS: TableIndex - Table index |
||
572 | * |
||
573 | * RETURN: Status |
||
574 | * |
||
575 | * DESCRIPTION: Delete all namespace objects created when this table was loaded. |
||
576 | * |
||
577 | ******************************************************************************/ |
||
578 | |||
579 | ACPI_STATUS |
||
580 | AcpiTbDeleteNamespaceByOwner ( |
||
581 | UINT32 TableIndex) |
||
582 | { |
||
583 | ACPI_OWNER_ID OwnerId; |
||
584 | ACPI_STATUS Status; |
||
585 | |||
586 | |||
587 | ACPI_FUNCTION_TRACE (TbDeleteNamespaceByOwner); |
||
588 | |||
589 | |||
590 | Status = AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
||
591 | if (ACPI_FAILURE (Status)) |
||
592 | { |
||
593 | return_ACPI_STATUS (Status); |
||
594 | } |
||
595 | |||
596 | if (TableIndex >= AcpiGbl_RootTableList.CurrentTableCount) |
||
597 | { |
||
598 | /* The table index does not exist */ |
||
599 | |||
600 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
||
601 | return_ACPI_STATUS (AE_NOT_EXIST); |
||
602 | } |
||
603 | |||
604 | /* Get the owner ID for this table, used to delete namespace nodes */ |
||
605 | |||
606 | OwnerId = AcpiGbl_RootTableList.Tables[TableIndex].OwnerId; |
||
607 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
||
608 | |||
609 | /* |
||
610 | * Need to acquire the namespace writer lock to prevent interference |
||
611 | * with any concurrent namespace walks. The interpreter must be |
||
612 | * released during the deletion since the acquisition of the deletion |
||
613 | * lock may block, and also since the execution of a namespace walk |
||
614 | * must be allowed to use the interpreter. |
||
615 | */ |
||
616 | (void) AcpiUtReleaseMutex (ACPI_MTX_INTERPRETER); |
||
617 | Status = AcpiUtAcquireWriteLock (&AcpiGbl_NamespaceRwLock); |
||
618 | |||
619 | AcpiNsDeleteNamespaceByOwner (OwnerId); |
||
620 | if (ACPI_FAILURE (Status)) |
||
621 | { |
||
622 | return_ACPI_STATUS (Status); |
||
623 | } |
||
624 | |||
625 | AcpiUtReleaseWriteLock (&AcpiGbl_NamespaceRwLock); |
||
626 | |||
627 | Status = AcpiUtAcquireMutex (ACPI_MTX_INTERPRETER); |
||
628 | return_ACPI_STATUS (Status); |
||
629 | } |
||
630 | |||
631 | |||
632 | /******************************************************************************* |
||
633 | * |
||
634 | * FUNCTION: AcpiTbAllocateOwnerId |
||
635 | * |
||
636 | * PARAMETERS: TableIndex - Table index |
||
637 | * |
||
638 | * RETURN: Status |
||
639 | * |
||
640 | * DESCRIPTION: Allocates OwnerId in TableDesc |
||
641 | * |
||
642 | ******************************************************************************/ |
||
643 | |||
644 | ACPI_STATUS |
||
645 | AcpiTbAllocateOwnerId ( |
||
646 | UINT32 TableIndex) |
||
647 | { |
||
648 | ACPI_STATUS Status = AE_BAD_PARAMETER; |
||
649 | |||
650 | |||
651 | ACPI_FUNCTION_TRACE (TbAllocateOwnerId); |
||
652 | |||
653 | |||
654 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
||
655 | if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount) |
||
656 | { |
||
657 | Status = AcpiUtAllocateOwnerId |
||
658 | (&(AcpiGbl_RootTableList.Tables[TableIndex].OwnerId)); |
||
659 | } |
||
660 | |||
661 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
||
662 | return_ACPI_STATUS (Status); |
||
663 | } |
||
664 | |||
665 | |||
666 | /******************************************************************************* |
||
667 | * |
||
668 | * FUNCTION: AcpiTbReleaseOwnerId |
||
669 | * |
||
670 | * PARAMETERS: TableIndex - Table index |
||
671 | * |
||
672 | * RETURN: Status |
||
673 | * |
||
674 | * DESCRIPTION: Releases OwnerId in TableDesc |
||
675 | * |
||
676 | ******************************************************************************/ |
||
677 | |||
678 | ACPI_STATUS |
||
679 | AcpiTbReleaseOwnerId ( |
||
680 | UINT32 TableIndex) |
||
681 | { |
||
682 | ACPI_STATUS Status = AE_BAD_PARAMETER; |
||
683 | |||
684 | |||
685 | ACPI_FUNCTION_TRACE (TbReleaseOwnerId); |
||
686 | |||
687 | |||
688 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
||
689 | if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount) |
||
690 | { |
||
691 | AcpiUtReleaseOwnerId ( |
||
692 | &(AcpiGbl_RootTableList.Tables[TableIndex].OwnerId)); |
||
693 | Status = AE_OK; |
||
694 | } |
||
695 | |||
696 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
||
697 | return_ACPI_STATUS (Status); |
||
698 | } |
||
699 | |||
700 | |||
701 | /******************************************************************************* |
||
702 | * |
||
703 | * FUNCTION: AcpiTbGetOwnerId |
||
704 | * |
||
705 | * PARAMETERS: TableIndex - Table index |
||
706 | * OwnerId - Where the table OwnerId is returned |
||
707 | * |
||
708 | * RETURN: Status |
||
709 | * |
||
710 | * DESCRIPTION: returns OwnerId for the ACPI table |
||
711 | * |
||
712 | ******************************************************************************/ |
||
713 | |||
714 | ACPI_STATUS |
||
715 | AcpiTbGetOwnerId ( |
||
716 | UINT32 TableIndex, |
||
717 | ACPI_OWNER_ID *OwnerId) |
||
718 | { |
||
719 | ACPI_STATUS Status = AE_BAD_PARAMETER; |
||
720 | |||
721 | |||
722 | ACPI_FUNCTION_TRACE (TbGetOwnerId); |
||
723 | |||
724 | |||
725 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
||
726 | if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount) |
||
727 | { |
||
728 | *OwnerId = AcpiGbl_RootTableList.Tables[TableIndex].OwnerId; |
||
729 | Status = AE_OK; |
||
730 | } |
||
731 | |||
732 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
||
733 | return_ACPI_STATUS (Status); |
||
734 | } |
||
735 | |||
736 | |||
737 | /******************************************************************************* |
||
738 | * |
||
739 | * FUNCTION: AcpiTbIsTableLoaded |
||
740 | * |
||
741 | * PARAMETERS: TableIndex - Table index |
||
742 | * |
||
743 | * RETURN: Table Loaded Flag |
||
744 | * |
||
745 | ******************************************************************************/ |
||
746 | |||
747 | BOOLEAN |
||
748 | AcpiTbIsTableLoaded ( |
||
749 | UINT32 TableIndex) |
||
750 | { |
||
751 | BOOLEAN IsLoaded = FALSE; |
||
752 | |||
753 | |||
754 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
||
755 | if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount) |
||
756 | { |
||
757 | IsLoaded = (BOOLEAN) |
||
758 | (AcpiGbl_RootTableList.Tables[TableIndex].Flags & |
||
759 | ACPI_TABLE_IS_LOADED); |
||
760 | } |
||
761 | |||
762 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
||
763 | return (IsLoaded); |
||
764 | } |
||
765 | |||
766 | |||
767 | /******************************************************************************* |
||
768 | * |
||
769 | * FUNCTION: AcpiTbSetTableLoadedFlag |
||
770 | * |
||
771 | * PARAMETERS: TableIndex - Table index |
||
772 | * IsLoaded - TRUE if table is loaded, FALSE otherwise |
||
773 | * |
||
774 | * RETURN: None |
||
775 | * |
||
776 | * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE. |
||
777 | * |
||
778 | ******************************************************************************/ |
||
779 | |||
780 | void |
||
781 | AcpiTbSetTableLoadedFlag ( |
||
782 | UINT32 TableIndex, |
||
783 | BOOLEAN IsLoaded) |
||
784 | { |
||
785 | |||
786 | (void) AcpiUtAcquireMutex (ACPI_MTX_TABLES); |
||
787 | if (TableIndex < AcpiGbl_RootTableList.CurrentTableCount) |
||
788 | { |
||
789 | if (IsLoaded) |
||
790 | { |
||
791 | AcpiGbl_RootTableList.Tables[TableIndex].Flags |= |
||
792 | ACPI_TABLE_IS_LOADED; |
||
793 | } |
||
794 | else |
||
795 | { |
||
796 | AcpiGbl_RootTableList.Tables[TableIndex].Flags &= |
||
797 | ~ACPI_TABLE_IS_LOADED; |
||
798 | } |
||
799 | } |
||
800 | |||
801 | (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); |
||
802 | }>>>>>>> |
||
803 |