1 /****************************************************************************** 2 * 3 * Module Name: dsinit - Object initialization namespace walk 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 *****************************************************************************/ 115 116 #define __DSINIT_C__ 117 118 #include "acpi.h" 119 #include "accommon.h" 120 #include "acdispat.h" 121 #include "acnamesp.h" 122 #include "actables.h" 123 124 #define _COMPONENT ACPI_DISPATCHER 125 ACPI_MODULE_NAME ("dsinit") 126 127 /* Local prototypes */ 128 129 static ACPI_STATUS 130 AcpiDsInitOneObject ( 131 ACPI_HANDLE ObjHandle, 132 UINT32 Level, 133 void *Context, 134 void **ReturnValue); 135 136 137 /******************************************************************************* 138 * 139 * FUNCTION: AcpiDsInitOneObject 140 * 141 * PARAMETERS: ObjHandle - Node for the object 142 * Level - Current nesting level 143 * Context - Points to a init info struct 144 * ReturnValue - Not used 145 * 146 * RETURN: Status 147 * 148 * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object 149 * within the namespace. 150 * 151 * Currently, the only objects that require initialization are: 152 * 1) Methods 153 * 2) Operation Regions 154 * 155 ******************************************************************************/ 156 157 static ACPI_STATUS 158 AcpiDsInitOneObject ( 159 ACPI_HANDLE ObjHandle, 160 UINT32 Level, 161 void *Context, 162 void **ReturnValue) 163 { 164 ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context; 165 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle; 166 ACPI_OBJECT_TYPE Type; 167 ACPI_STATUS Status; 168 169 170 ACPI_FUNCTION_ENTRY (); 171 172 173 /* 174 * We are only interested in NS nodes owned by the table that 175 * was just loaded 176 */ 177 if (Node->OwnerId != Info->OwnerId) 178 { 179 return (AE_OK); 180 } 181 182 Info->ObjectCount++; 183 184 /* And even then, we are only interested in a few object types */ 185 186 Type = AcpiNsGetType (ObjHandle); 187 188 switch (Type) 189 { 190 case ACPI_TYPE_REGION: 191 192 Status = AcpiDsInitializeRegion (ObjHandle); 193 if (ACPI_FAILURE (Status)) 194 { 195 ACPI_EXCEPTION ((AE_INFO, Status, 196 "During Region initialization %p [%4.4s]", 197 ObjHandle, AcpiUtGetNodeName (ObjHandle))); 198 } 199 200 Info->OpRegionCount++; 201 break; 202 203 204 case ACPI_TYPE_METHOD: 205 206 Info->MethodCount++; 207 break; 208 209 210 case ACPI_TYPE_DEVICE: 211 212 Info->DeviceCount++; 213 break; 214 215 216 default: 217 break; 218 } 219 220 /* 221 * We ignore errors from above, and always return OK, since 222 * we don't want to abort the walk on a single error. 223 */ 224 return (AE_OK); 225 } 226 227 228 /******************************************************************************* 229 * 230 * FUNCTION: AcpiDsInitializeObjects 231 * 232 * PARAMETERS: TableDesc - Descriptor for parent ACPI table 233 * StartNode - Root of subtree to be initialized. 234 * 235 * RETURN: Status 236 * 237 * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any 238 * necessary initialization on the objects found therein 239 * 240 ******************************************************************************/ 241 242 ACPI_STATUS 243 AcpiDsInitializeObjects ( 244 UINT32 TableIndex, 245 ACPI_NAMESPACE_NODE *StartNode) 246 { 247 ACPI_STATUS Status; 248 ACPI_INIT_WALK_INFO Info; 249 ACPI_TABLE_HEADER *Table; 250 ACPI_OWNER_ID OwnerId; 251 252 253 ACPI_FUNCTION_TRACE (DsInitializeObjects); 254 255 256 Status = AcpiTbGetOwnerId (TableIndex, &OwnerId); 257 if (ACPI_FAILURE (Status)) 258 { 259 return_ACPI_STATUS (Status); 260 } 261 262 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 263 "**** Starting initialization of namespace objects ****\n")); 264 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "Parsing all Control Methods:")); 265 266 Info.MethodCount = 0; 267 Info.OpRegionCount = 0; 268 Info.ObjectCount = 0; 269 Info.DeviceCount = 0; 270 Info.TableIndex = TableIndex; 271 Info.OwnerId = OwnerId; 272 273 /* Walk entire namespace from the supplied root */ 274 275 Status = AcpiUtAcquireMutex (ACPI_MTX_NAMESPACE); 276 if (ACPI_FAILURE (Status)) 277 { 278 return_ACPI_STATUS (Status); 279 } 280 281 /* 282 * We don't use AcpiWalkNamespace since we do not want to acquire 283 * the namespace reader lock. 284 */ 285 Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, StartNode, ACPI_UINT32_MAX, 286 ACPI_NS_WALK_UNLOCK, AcpiDsInitOneObject, NULL, &Info, NULL); 287 if (ACPI_FAILURE (Status)) 288 { 289 ACPI_EXCEPTION ((AE_INFO, Status, "During WalkNamespace")); 290 } 291 (void) AcpiUtReleaseMutex (ACPI_MTX_NAMESPACE); 292 293 Status = AcpiGetTableByIndex (TableIndex, &Table); 294 if (ACPI_FAILURE (Status)) 295 { 296 return_ACPI_STATUS (Status); 297 } 298 299 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, 300 "\nTable [%4.4s](id %4.4X) - %hd Objects with %hd Devices %hd Methods %hd Regions\n", 301 Table->Signature, OwnerId, Info.ObjectCount, 302 Info.DeviceCount, Info.MethodCount, Info.OpRegionCount)); 303 304 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, 305 "%hd Methods, %hd Regions\n", Info.MethodCount, Info.OpRegionCount)); 306 307 return_ACPI_STATUS (AE_OK); 308 } 309 310 311