utinit.c revision 114237
119304Speter/****************************************************************************** 219304Speter * 319304Speter * Module Name: utinit - Common ACPI subsystem initialization 419304Speter * $Revision: 116 $ 519304Speter * 619304Speter *****************************************************************************/ 719304Speter 819304Speter/****************************************************************************** 919304Speter * 1019304Speter * 1. Copyright Notice 1119304Speter * 1219304Speter * Some or all of this work - Copyright (c) 1999 - 2003, Intel Corp. 1319304Speter * All rights reserved. 1419304Speter * 1519304Speter * 2. License 1619304Speter * 1719304Speter * 2.1. This is your license from Intel Corp. under its intellectual property 1819304Speter * rights. You may have additional license terms from the party that provided 1919304Speter * you this software, covering your right to use that party's intellectual 2019304Speter * property rights. 2119304Speter * 2219304Speter * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 2319304Speter * copy of the source code appearing in this file ("Covered Code") an 2419304Speter * irrevocable, perpetual, worldwide license under Intel's copyrights in the 2519304Speter * base code distributed originally by Intel ("Original Intel Code") to copy, 2619304Speter * make derivatives, distribute, use and display any portion of the Covered 2719304Speter * Code in any form, with the right to sublicense such rights; and 2819304Speter * 2919304Speter * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 3019304Speter * license (with the right to sublicense), under only those claims of Intel 3119304Speter * patents that are infringed by the Original Intel Code, to make, use, sell, 3219304Speter * offer to sell, and import the Covered Code and derivative works thereof 3319304Speter * solely to the minimum extent necessary to exercise the above copyright 3419304Speter * license, and in no event shall the patent license extend to any additions 3519304Speter * to or modifications of the Original Intel Code. No other license or right 3619304Speter * is granted directly or by implication, estoppel or otherwise; 3719304Speter * 3819304Speter * The above copyright and patent license is granted only if the following 3919304Speter * conditions are met: 4019304Speter * 4119304Speter * 3. Conditions 4219304Speter * 4319304Speter * 3.1. Redistribution of Source with Rights to Further Distribute Source. 4419304Speter * Redistribution of source code of any substantial portion of the Covered 4519304Speter * Code or modification with rights to further distribute source must include 4619304Speter * the above Copyright Notice, the above License, this list of Conditions, 4719304Speter * and the following Disclaimer and Export Compliance provision. In addition, 4819304Speter * Licensee must cause all Covered Code to which Licensee contributes to 4919304Speter * contain a file documenting the changes Licensee made to create that Covered 5019304Speter * Code and the date of any change. Licensee must include in that file the 5119304Speter * documentation of any changes made by any predecessor Licensee. Licensee 5219304Speter * must include a prominent statement that the modification is derived, 5319304Speter * directly or indirectly, from Original Intel Code. 5419304Speter * 5519304Speter * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 5619304Speter * Redistribution of source code of any substantial portion of the Covered 5719304Speter * Code or modification without rights to further distribute source must 5819304Speter * include the following Disclaimer and Export Compliance provision in the 5919304Speter * documentation and/or other materials provided with distribution. In 6019304Speter * addition, Licensee may not authorize further sublicense of source of any 6119304Speter * portion of the Covered Code, and must include terms to the effect that the 6219304Speter * license from Licensee to its licensee is limited to the intellectual 6319304Speter * property embodied in the software Licensee provides to its licensee, and 6419304Speter * not to intellectual property embodied in modifications its licensee may 6519304Speter * make. 66 * 67 * 3.3. Redistribution of Executable. Redistribution in executable form of any 68 * substantial portion of the Covered Code or modification must reproduce the 69 * above Copyright Notice, and the following Disclaimer and Export Compliance 70 * provision in the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3.4. Intel retains all right, title, and interest in and to the Original 74 * Intel Code. 75 * 76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 77 * Intel shall be used in advertising or otherwise to promote the sale, use or 78 * other dealings in products derived from or relating to the Covered Code 79 * without prior written authorization from Intel. 80 * 81 * 4. Disclaimer and Export Compliance 82 * 83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 89 * PARTICULAR PURPOSE. 90 * 91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 98 * LIMITED REMEDY. 99 * 100 * 4.3. Licensee shall not export, either directly or indirectly, any of this 101 * software or system incorporating such software without first obtaining any 102 * required license or other approval from the U. S. Department of Commerce or 103 * any other agency or department of the United States Government. In the 104 * event Licensee exports any such software from the United States or 105 * re-exports any such software from a foreign destination, Licensee shall 106 * ensure that the distribution and export/re-export of the software is in 107 * compliance with all laws, regulations, orders, or other restrictions of the 108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 109 * any of its subsidiaries will export/re-export any technical data, process, 110 * software, or service, directly or indirectly, to any country for which the 111 * United States government or any agency thereof requires an export license, 112 * other governmental approval, or letter of assurance, without first obtaining 113 * such license, approval or letter. 114 * 115 *****************************************************************************/ 116 117 118#define __UTINIT_C__ 119 120#include "acpi.h" 121#include "acnamesp.h" 122#include "acevents.h" 123 124#define _COMPONENT ACPI_UTILITIES 125 ACPI_MODULE_NAME ("utinit") 126 127 128/******************************************************************************* 129 * 130 * FUNCTION: AcpiUtFadtRegisterError 131 * 132 * PARAMETERS: *RegisterName - Pointer to string identifying register 133 * Value - Actual register contents value 134 * AcpiTestSpecSection - TDS section containing assertion 135 * AcpiAssertion - Assertion number being tested 136 * 137 * RETURN: AE_BAD_VALUE 138 * 139 * DESCRIPTION: Display failure message and link failure to TDS assertion 140 * 141 ******************************************************************************/ 142 143static void 144AcpiUtFadtRegisterError ( 145 char *RegisterName, 146 UINT32 Value, 147 ACPI_SIZE Offset) 148{ 149 150 ACPI_REPORT_WARNING ( 151 ("Invalid FADT value %s=%X at offset %X FADT=%p\n", 152 RegisterName, Value, (UINT32) Offset, AcpiGbl_FADT)); 153} 154 155 156/****************************************************************************** 157 * 158 * FUNCTION: AcpiUtValidateFadt 159 * 160 * PARAMETERS: None 161 * 162 * RETURN: Status 163 * 164 * DESCRIPTION: Validate various ACPI registers in the FADT 165 * 166 ******************************************************************************/ 167 168ACPI_STATUS 169AcpiUtValidateFadt ( 170 void) 171{ 172 173 /* 174 * Verify Fixed ACPI Description Table fields, 175 * but don't abort on any problems, just display error 176 */ 177 if (AcpiGbl_FADT->Pm1EvtLen < 4) 178 { 179 AcpiUtFadtRegisterError ("PM1_EVT_LEN", 180 (UINT32) AcpiGbl_FADT->Pm1EvtLen, 181 ACPI_FADT_OFFSET (Pm1EvtLen)); 182 } 183 184 if (!AcpiGbl_FADT->Pm1CntLen) 185 { 186 AcpiUtFadtRegisterError ("PM1_CNT_LEN", 0, 187 ACPI_FADT_OFFSET (Pm1CntLen)); 188 } 189 190 if (!ACPI_VALID_ADDRESS (AcpiGbl_FADT->XPm1aEvtBlk.Address)) 191 { 192 AcpiUtFadtRegisterError ("X_PM1a_EVT_BLK", 0, 193 ACPI_FADT_OFFSET (XPm1aEvtBlk.Address)); 194 } 195 196 if (!ACPI_VALID_ADDRESS (AcpiGbl_FADT->XPm1aCntBlk.Address)) 197 { 198 AcpiUtFadtRegisterError ("X_PM1a_CNT_BLK", 0, 199 ACPI_FADT_OFFSET (XPm1aCntBlk.Address)); 200 } 201 202 if (!ACPI_VALID_ADDRESS (AcpiGbl_FADT->XPmTmrBlk.Address)) 203 { 204 AcpiUtFadtRegisterError ("X_PM_TMR_BLK", 0, 205 ACPI_FADT_OFFSET (XPmTmrBlk.Address)); 206 } 207 208 if ((ACPI_VALID_ADDRESS (AcpiGbl_FADT->XPm2CntBlk.Address) && 209 !AcpiGbl_FADT->Pm2CntLen)) 210 { 211 AcpiUtFadtRegisterError ("PM2_CNT_LEN", 212 (UINT32) AcpiGbl_FADT->Pm2CntLen, 213 ACPI_FADT_OFFSET (Pm2CntLen)); 214 } 215 216 if (AcpiGbl_FADT->PmTmLen < 4) 217 { 218 AcpiUtFadtRegisterError ("PM_TM_LEN", 219 (UINT32) AcpiGbl_FADT->PmTmLen, 220 ACPI_FADT_OFFSET (PmTmLen)); 221 } 222 223 /* Length of GPE blocks must be a multiple of 2 */ 224 225 if (ACPI_VALID_ADDRESS (AcpiGbl_FADT->XGpe0Blk.Address) && 226 (AcpiGbl_FADT->Gpe0BlkLen & 1)) 227 { 228 AcpiUtFadtRegisterError ("(x)GPE0_BLK_LEN", 229 (UINT32) AcpiGbl_FADT->Gpe0BlkLen, 230 ACPI_FADT_OFFSET (Gpe0BlkLen)); 231 } 232 233 if (ACPI_VALID_ADDRESS (AcpiGbl_FADT->XGpe1Blk.Address) && 234 (AcpiGbl_FADT->Gpe1BlkLen & 1)) 235 { 236 AcpiUtFadtRegisterError ("(x)GPE1_BLK_LEN", 237 (UINT32) AcpiGbl_FADT->Gpe1BlkLen, 238 ACPI_FADT_OFFSET (Gpe1BlkLen)); 239 } 240 241 return (AE_OK); 242} 243 244 245/****************************************************************************** 246 * 247 * FUNCTION: AcpiUtTerminate 248 * 249 * PARAMETERS: none 250 * 251 * RETURN: none 252 * 253 * DESCRIPTION: free memory allocated for table storage. 254 * 255 ******************************************************************************/ 256 257void 258AcpiUtTerminate (void) 259{ 260 261 ACPI_FUNCTION_TRACE ("UtTerminate"); 262 263 264 /* Free global tables, etc. */ 265 266 /* Nothing to do at this time */ 267 268 return_VOID; 269} 270 271 272/******************************************************************************* 273 * 274 * FUNCTION: AcpiUtSubsystemShutdown 275 * 276 * PARAMETERS: none 277 * 278 * RETURN: none 279 * 280 * DESCRIPTION: Shutdown the various subsystems. Don't delete the mutex 281 * objects here -- because the AML debugger may be still running. 282 * 283 ******************************************************************************/ 284 285void 286AcpiUtSubsystemShutdown (void) 287{ 288 289 ACPI_FUNCTION_TRACE ("UtSubsystemShutdown"); 290 291 /* Just exit if subsystem is already shutdown */ 292 293 if (AcpiGbl_Shutdown) 294 { 295 ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "ACPI Subsystem is already terminated\n")); 296 return_VOID; 297 } 298 299 /* Subsystem appears active, go ahead and shut it down */ 300 301 AcpiGbl_Shutdown = TRUE; 302 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem...\n")); 303 304 /* Close the AcpiEvent Handling */ 305 306 AcpiEvTerminate (); 307 308 /* Close the Namespace */ 309 310 AcpiNsTerminate (); 311 312 /* Close the globals */ 313 314 AcpiUtTerminate (); 315 316 /* Purge the local caches */ 317 318 (void) AcpiPurgeCachedObjects (); 319 320 /* Debug only - display leftover memory allocation, if any */ 321 322#ifdef ACPI_DBG_TRACK_ALLOCATIONS 323 AcpiUtDumpAllocations (ACPI_UINT32_MAX, NULL); 324#endif 325 326 return_VOID; 327} 328 329 330