/****************************************************************************** * * Module Name: tbconvrt - ACPI Table conversion utilities * $Revision: 36 $ * *****************************************************************************/ /****************************************************************************** * * 1. Copyright Notice * * Some or all of this work - Copyright (c) 1999 - 2002, Intel Corp. * All rights reserved. * * 2. License * * 2.1. This is your license from Intel Corp. under its intellectual property * rights. You may have additional license terms from the party that provided * you this software, covering your right to use that party's intellectual * property rights. * * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a * copy of the source code appearing in this file ("Covered Code") an * irrevocable, perpetual, worldwide license under Intel's copyrights in the * base code distributed originally by Intel ("Original Intel Code") to copy, * make derivatives, distribute, use and display any portion of the Covered * Code in any form, with the right to sublicense such rights; and * * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent * license (with the right to sublicense), under only those claims of Intel * patents that are infringed by the Original Intel Code, to make, use, sell, * offer to sell, and import the Covered Code and derivative works thereof * solely to the minimum extent necessary to exercise the above copyright * license, and in no event shall the patent license extend to any additions * to or modifications of the Original Intel Code. No other license or right * is granted directly or by implication, estoppel or otherwise; * * The above copyright and patent license is granted only if the following * conditions are met: * * 3. Conditions * * 3.1. Redistribution of Source with Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification with rights to further distribute source must include * the above Copyright Notice, the above License, this list of Conditions, * and the following Disclaimer and Export Compliance provision. In addition, * Licensee must cause all Covered Code to which Licensee contributes to * contain a file documenting the changes Licensee made to create that Covered * Code and the date of any change. Licensee must include in that file the * documentation of any changes made by any predecessor Licensee. Licensee * must include a prominent statement that the modification is derived, * directly or indirectly, from Original Intel Code. * * 3.2. Redistribution of Source with no Rights to Further Distribute Source. * Redistribution of source code of any substantial portion of the Covered * Code or modification without rights to further distribute source must * include the following Disclaimer and Export Compliance provision in the * documentation and/or other materials provided with distribution. In * addition, Licensee may not authorize further sublicense of source of any * portion of the Covered Code, and must include terms to the effect that the * license from Licensee to its licensee is limited to the intellectual * property embodied in the software Licensee provides to its licensee, and * not to intellectual property embodied in modifications its licensee may * make. * * 3.3. Redistribution of Executable. Redistribution in executable form of any * substantial portion of the Covered Code or modification must reproduce the * above Copyright Notice, and the following Disclaimer and Export Compliance * provision in the documentation and/or other materials provided with the * distribution. * * 3.4. Intel retains all right, title, and interest in and to the Original * Intel Code. * * 3.5. Neither the name Intel nor any other trademark owned or controlled by * Intel shall be used in advertising or otherwise to promote the sale, use or * other dealings in products derived from or relating to the Covered Code * without prior written authorization from Intel. * * 4. Disclaimer and Export Compliance * * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A * PARTICULAR PURPOSE. * * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY * LIMITED REMEDY. * * 4.3. Licensee shall not export, either directly or indirectly, any of this * software or system incorporating such software without first obtaining any * required license or other approval from the U. S. Department of Commerce or * any other agency or department of the United States Government. In the * event Licensee exports any such software from the United States or * re-exports any such software from a foreign destination, Licensee shall * ensure that the distribution and export/re-export of the software is in * compliance with all laws, regulations, orders, or other restrictions of the * U.S. Export Administration Regulations. Licensee agrees that neither it nor * any of its subsidiaries will export/re-export any technical data, process, * software, or service, directly or indirectly, to any country for which the * United States government or any agency thereof requires an export license, * other governmental approval, or letter of assurance, without first obtaining * such license, approval or letter. * *****************************************************************************/ #define __TBCONVRT_C__ #include "acpi.h" #include "actables.h" #define _COMPONENT ACPI_TABLES ACPI_MODULE_NAME ("tbconvrt") /******************************************************************************* * * FUNCTION: AcpiTbGetTableCount * * PARAMETERS: * * RETURN: * * DESCRIPTION: Calculate the number of tables * ******************************************************************************/ UINT32 AcpiTbGetTableCount ( RSDP_DESCRIPTOR *RSDP, ACPI_TABLE_HEADER *RSDT) { UINT32 PointerSize; ACPI_FUNCTION_ENTRY (); #ifndef _IA64 if (RSDP->Revision < 2) { PointerSize = sizeof (UINT32); } else #endif { PointerSize = sizeof (UINT64); } /* * Determine the number of tables pointed to by the RSDT/XSDT. * This is defined by the ACPI Specification to be the number of * pointers contained within the RSDT/XSDT. The size of the pointers * is architecture-dependent. */ return ((RSDT->Length - sizeof (ACPI_TABLE_HEADER)) / PointerSize); } /******************************************************************************* * * FUNCTION: AcpiTbConvertToXsdt * * PARAMETERS: * * RETURN: * * DESCRIPTION: Convert an RSDT to an XSDT (internal common format) * ******************************************************************************/ ACPI_STATUS AcpiTbConvertToXsdt ( ACPI_TABLE_DESC *TableInfo, UINT32 *NumberOfTables) { UINT32 TableSize; UINT32 i; XSDT_DESCRIPTOR *NewTable; ACPI_FUNCTION_ENTRY (); /* Get the number of tables defined in the RSDT or XSDT */ *NumberOfTables = AcpiTbGetTableCount (AcpiGbl_RSDP, TableInfo->Pointer); /* Compute size of the converted XSDT */ TableSize = (*NumberOfTables * sizeof (UINT64)) + sizeof (ACPI_TABLE_HEADER); /* Allocate an XSDT */ NewTable = ACPI_MEM_CALLOCATE (TableSize); if (!NewTable) { return (AE_NO_MEMORY); } /* Copy the header and set the length */ ACPI_MEMCPY (NewTable, TableInfo->Pointer, sizeof (ACPI_TABLE_HEADER)); NewTable->Header.Length = TableSize; /* Copy the table pointers */ for (i = 0; i < *NumberOfTables; i++) { if (AcpiGbl_RSDP->Revision < 2) { ACPI_STORE_ADDRESS (NewTable->TableOffsetEntry[i], ((RSDT_DESCRIPTOR_REV1 *) TableInfo->Pointer)->TableOffsetEntry[i]); } else { NewTable->TableOffsetEntry[i] = ((XSDT_DESCRIPTOR *) TableInfo->Pointer)->TableOffsetEntry[i]; } } /* Delete the original table (either mapped or in a buffer) */ AcpiTbDeleteSingleTable (TableInfo); /* Point the table descriptor to the new table */ TableInfo->Pointer = (ACPI_TABLE_HEADER *) NewTable; TableInfo->BasePointer = (ACPI_TABLE_HEADER *) NewTable; TableInfo->Length = TableSize; TableInfo->Allocation = ACPI_MEM_ALLOCATED; return (AE_OK); } /******************************************************************************* * * FUNCTION: AcpiTbConvertTableFadt * * PARAMETERS: None * * RETURN: Status * * DESCRIPTION: * Converts a BIOS supplied ACPI 1.0 FADT to an intermediate * ACPI 2.0 FADT. If the BIOS supplied a 2.0 FADT then it is simply * copied to the intermediate FADT. The ACPI CA software uses this * intermediate FADT. Thus a significant amount of special #ifdef * type codeing is saved. This intermediate FADT will need to be * freed at some point. * ******************************************************************************/ ACPI_STATUS AcpiTbConvertTableFadt (void) { FADT_DESCRIPTOR_REV1 *FADT1; FADT_DESCRIPTOR_REV2 *FADT2; ACPI_TABLE_DESC *TableDesc; ACPI_FUNCTION_TRACE ("TbConvertTableFadt"); /* * AcpiGbl_FADT is valid * Allocate and zero the 2.0 FADT buffer */ FADT2 = ACPI_MEM_CALLOCATE (sizeof (FADT_DESCRIPTOR_REV2)); if (FADT2 == NULL) { return_ACPI_STATUS (AE_NO_MEMORY); } /* * The ACPI FADT revision number is FADT2_REVISION_ID=3 * So, if the current table revision is less than 3 it is type 1.0 */ if (AcpiGbl_FADT->Header.Revision >= FADT2_REVISION_ID) { /* We have an ACPI 2.0 FADT but we must copy it to our local buffer */ *FADT2 = *((FADT_DESCRIPTOR_REV2*) AcpiGbl_FADT); } else { /* ACPI 1.0 FACS */ /* The BIOS stored FADT should agree with Revision 1.0 */ FADT1 = (FADT_DESCRIPTOR_REV1*) AcpiGbl_FADT; /* * Copy the table header and the common part of the tables. * * The 2.0 table is an extension of the 1.0 table, so the entire 1.0 * table can be copied first, then expand some fields to 64 bits. */ ACPI_MEMCPY (FADT2, FADT1, sizeof (FADT_DESCRIPTOR_REV1)); /* Convert table pointers to 64-bit fields */ ACPI_STORE_ADDRESS (FADT2->XFirmwareCtrl, FADT1->FirmwareCtrl); ACPI_STORE_ADDRESS (FADT2->XDsdt, FADT1->Dsdt); /* * System Interrupt Model isn't used in ACPI 2.0 (FADT2->Reserved1 = 0;) */ /* * This field is set by the OEM to convey the preferred power management * profile to OSPM. It doesn't have any 1.0 equivalence. Since we don't * know what kind of 32-bit system this is, we will use "unspecified". */ FADT2->Prefer_PM_Profile = PM_UNSPECIFIED; /* * Processor Performance State Control. This is the value OSPM writes to * the SMI_CMD register to assume processor performance state control * responsibility. There isn't any equivalence in 1.0, leave it zeroed. */ FADT2->PstateCnt = 0; /* * Support for the _CST object and C States change notification. * This data item hasn't any 1.0 equivalence so leave it zero. */ FADT2->CstCnt = 0; /* * Since there isn't any equivalence in 1.0 and since it highly likely * that a 1.0 system has legacy support. */ FADT2->IapcBootArch = BAF_LEGACY_DEVICES; /* * Convert the V1.0 block addresses to V2.0 GAS structures * in this order: * * PM 1A Events * PM 1B Events * PM 1A Control * PM 1B Control * PM 2 Control * PM Timer Control * GPE Block 0 * GPE Block 1 */ ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->XPm1aEvtBlk, FADT1->Pm1EvtLen, FADT1->Pm1aEvtBlk); ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->XPm1bEvtBlk, FADT1->Pm1EvtLen, FADT1->Pm1bEvtBlk); ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->XPm1aCntBlk, FADT1->Pm1CntLen, FADT1->Pm1aCntBlk); ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->XPm1bCntBlk, FADT1->Pm1CntLen, FADT1->Pm1bCntBlk); ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->XPm2CntBlk, FADT1->Pm2CntLen, FADT1->Pm2CntBlk); ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->XPmTmrBlk, FADT1->PmTmLen, FADT1->PmTmrBlk); ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->XGpe0Blk, FADT1->Gpe0BlkLen, FADT1->Gpe0Blk); ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->XGpe1Blk, FADT1->Gpe1BlkLen, FADT1->Gpe1Blk); } /* * Global FADT pointer will point to the common V2.0 FADT */ AcpiGbl_FADT = FADT2; AcpiGbl_FADT->Header.Length = sizeof (FADT_DESCRIPTOR); /* Free the original table */ TableDesc = &AcpiGbl_AcpiTables[ACPI_TABLE_FADT]; AcpiTbDeleteSingleTable (TableDesc); /* Install the new table */ TableDesc->Pointer = (ACPI_TABLE_HEADER *) AcpiGbl_FADT; TableDesc->BasePointer = AcpiGbl_FADT; TableDesc->Allocation = ACPI_MEM_ALLOCATED; TableDesc->Length = sizeof (FADT_DESCRIPTOR_REV2); /* Dump the entire FADT */ ACPI_DEBUG_PRINT ((ACPI_DB_TABLES, "Hex dump of common internal FADT, size %d (%X)\n", AcpiGbl_FADT->Header.Length, AcpiGbl_FADT->Header.Length)); ACPI_DUMP_BUFFER ((UINT8 *) (AcpiGbl_FADT), AcpiGbl_FADT->Header.Length); return_ACPI_STATUS (AE_OK); } /******************************************************************************* * * FUNCTION: AcpiTbConvertTableFacs * * PARAMETERS: TableInfo - Info for currently installad FACS * * RETURN: Status * * DESCRIPTION: Convert ACPI 1.0 and ACPI 2.0 FACS to a common internal * table format. * ******************************************************************************/ ACPI_STATUS AcpiTbBuildCommonFacs ( ACPI_TABLE_DESC *TableInfo) { FACS_DESCRIPTOR_REV1 *FACS1; FACS_DESCRIPTOR_REV2 *FACS2; ACPI_FUNCTION_TRACE ("TbBuildCommonFacs"); /* Copy fields to the new FACS */ if (AcpiGbl_RSDP->Revision < 2) { /* ACPI 1.0 FACS */ FACS1 = (FACS_DESCRIPTOR_REV1 *) AcpiGbl_FACS; AcpiGbl_CommonFACS.GlobalLock = &(FACS1->GlobalLock); AcpiGbl_CommonFACS.FirmwareWakingVector = (UINT64 *) &FACS1->FirmwareWakingVector; AcpiGbl_CommonFACS.VectorWidth = 32; } else { /* ACPI 2.0 FACS */ FACS2 = (FACS_DESCRIPTOR_REV2 *) AcpiGbl_FACS; AcpiGbl_CommonFACS.GlobalLock = &(FACS2->GlobalLock); AcpiGbl_CommonFACS.FirmwareWakingVector = &FACS2->XFirmwareWakingVector; AcpiGbl_CommonFACS.VectorWidth = 64; } return_ACPI_STATUS (AE_OK); }