arch/all-pc/acpica/source/tools/acpinames/antables.c

   1 /******************************************************************************
   2  *
   3  * Module Name: antables - ACPI table setup/install for AcpiNames utility
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2013, Intel Corp.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions, and the following disclaimer,
  16  *    without modification.
  17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  18  *    substantially similar to the "NO WARRANTY" disclaimer below
  19  *    ("Disclaimer") and any redistribution must be conditioned upon
  20  *    including a substantially similar Disclaimer requirement for further
  21  *    binary redistribution.
  22  * 3. Neither the names of the above-listed copyright holders nor the names
  23  *    of any contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * Alternatively, this software may be distributed under the terms of the
  27  * GNU General Public License ("GPL") version 2 as published by the Free
  28  * Software Foundation.
  29  *
  30  * NO WARRANTY
  31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGES.
  42  */
  43
  44 #include "acpinames.h"
  45
  46 #define _COMPONENT          ACPI_TOOLS
  47         ACPI_MODULE_NAME    ("antables")
  48
  49 /* Local prototypes */
  50
  51 ACPI_PHYSICAL_ADDRESS
  52 AeLocalGetRootPointer (
  53     void);
  54
  55 /* Non-AML tables that are constructed locally and installed */
  56
  57 static ACPI_TABLE_RSDP          LocalRSDP;
  58 static ACPI_TABLE_FACS          LocalFACS;
  59
  60 /*
  61  * We need a local FADT so that the hardware subcomponent will function,
  62  * even though the underlying OSD HW access functions don't do anything.
  63  */
  64 static ACPI_TABLE_FADT          LocalFADT;
  65
  66 /*
  67  * Use XSDT so that both 32- and 64-bit versions of this utility will
  68  * function automatically.
  69  */
  70 static ACPI_TABLE_XSDT          *LocalXSDT;
  71
  72 #define BASE_XSDT_TABLES        1
  73 #define BASE_XSDT_SIZE          (sizeof (ACPI_TABLE_XSDT) + \
  74                                     ((BASE_XSDT_TABLES -1) * sizeof (UINT64)))
  75
  76 ACPI_TABLE_DESC                 Tables[ACPI_MAX_INIT_TABLES];
  77
  78
  79 /******************************************************************************
  80  *
  81  * FUNCTION:    AeBuildLocalTables
  82  *
  83  * PARAMETERS:  TableCount      - Number of tables on the command line
  84  *              TableList       - List of actual tables from files
  85  *
  86  * RETURN:      Status
  87  *
  88  * DESCRIPTION: Build a complete ACPI table chain, with a local RSDP, XSDT,
  89  *              FADT, FACS, and the input DSDT/SSDT.
  90  *
  91  *****************************************************************************/
  92
  93 ACPI_STATUS
  94 AeBuildLocalTables (
  95     UINT32                  TableCount,
  96     AE_TABLE_DESC           *TableList)
  97 {
  98     ACPI_PHYSICAL_ADDRESS   DsdtAddress = 0;
  99     UINT32                  XsdtSize;
 100     AE_TABLE_DESC           *NextTable;
 101     UINT32                  NextIndex;
 102     ACPI_TABLE_FADT         *ExternalFadt = NULL;
 103
 104
 105     /*
 106      * Update the table count. For DSDT, it is not put into the XSDT. For
 107      * FADT, this is already accounted for since we usually install a
 108      * local FADT.
 109      */
 110     NextTable = TableList;
 111     while (NextTable)
 112     {
 113         if (ACPI_COMPARE_NAME (NextTable->Table->Signature, ACPI_SIG_DSDT) ||
 114             ACPI_COMPARE_NAME (NextTable->Table->Signature, ACPI_SIG_FADT))
 115         {
 116             TableCount--;
 117         }
 118         NextTable = NextTable->Next;
 119     }
 120
 121     XsdtSize = BASE_XSDT_SIZE + (TableCount * sizeof (UINT64));
 122
 123     /* Build an XSDT */
 124
 125     LocalXSDT = AcpiOsAllocate (XsdtSize);
 126     if (!LocalXSDT)
 127     {
 128         return (AE_NO_MEMORY);
 129     }
 130
 131     ACPI_MEMSET (LocalXSDT, 0, XsdtSize);
 132     ACPI_MOVE_NAME (LocalXSDT->Header.Signature, ACPI_SIG_XSDT);
 133     LocalXSDT->Header.Length = XsdtSize;
 134     LocalXSDT->Header.Revision = 1;
 135
 136     LocalXSDT->TableOffsetEntry[0] = ACPI_PTR_TO_PHYSADDR (&LocalFADT);
 137
 138     /*
 139      * Install the user tables. The DSDT must be installed in the FADT.
 140      * All other tables are installed directly into the XSDT.
 141      */
 142     NextIndex = BASE_XSDT_TABLES;
 143     NextTable = TableList;
 144     while (NextTable)
 145     {
 146         /*
 147          * Incoming DSDT or FADT are special cases. All other tables are
 148          * just immediately installed into the XSDT.
 149          */
 150         if (ACPI_COMPARE_NAME (NextTable->Table->Signature, ACPI_SIG_DSDT))
 151         {
 152             if (DsdtAddress)
 153             {
 154                 printf ("Already found a DSDT, only one allowed\n");
 155                 return (AE_ALREADY_EXISTS);
 156             }
 157
 158             /* The incoming user table is a DSDT */
 159
 160             DsdtAddress = ACPI_PTR_TO_PHYSADDR (NextTable->Table);
 161         }
 162         else if (ACPI_COMPARE_NAME (NextTable->Table->Signature, ACPI_SIG_FADT))
 163         {
 164             ExternalFadt = ACPI_CAST_PTR (ACPI_TABLE_FADT, NextTable->Table);
 165             LocalXSDT->TableOffsetEntry[2] = ACPI_PTR_TO_PHYSADDR (NextTable->Table);
 166         }
 167         else
 168         {
 169             /* Install the table in the XSDT */
 170
 171             LocalXSDT->TableOffsetEntry[NextIndex] = ACPI_PTR_TO_PHYSADDR (NextTable->Table);
 172             NextIndex++;
 173         }
 174
 175         NextTable = NextTable->Next;
 176     }
 177
 178     /* Build an RSDP */
 179
 180     ACPI_MEMSET (&LocalRSDP, 0, sizeof (ACPI_TABLE_RSDP));
 181     ACPI_MAKE_RSDP_SIG (LocalRSDP.Signature);
 182     ACPI_MEMCPY (LocalRSDP.OemId, "I_TEST", 6);
 183     LocalRSDP.Revision = 2;
 184     LocalRSDP.XsdtPhysicalAddress = ACPI_PTR_TO_PHYSADDR (LocalXSDT);
 185     LocalRSDP.Length = sizeof (ACPI_TABLE_XSDT);
 186
 187     /* Set checksums for both XSDT and RSDP */
 188
 189     LocalXSDT->Header.Checksum = (UINT8) -AcpiTbChecksum (
 190         (void *) LocalXSDT, LocalXSDT->Header.Length);
 191     LocalRSDP.Checksum = (UINT8) -AcpiTbChecksum (
 192         (void *) &LocalRSDP, ACPI_RSDP_CHECKSUM_LENGTH);
 193
 194     if (!DsdtAddress)
 195     {
 196         return (AE_SUPPORT);
 197     }
 198
 199     if (ExternalFadt)
 200     {
 201         /*
 202          * Use the external FADT, but we must update the DSDT/FACS addresses
 203          * as well as the checksum
 204          */
 205         ExternalFadt->Dsdt = DsdtAddress;
 206         ExternalFadt->Facs = ACPI_PTR_TO_PHYSADDR (&LocalFACS);
 207
 208         if (ExternalFadt->Header.Length > ACPI_PTR_DIFF (&ExternalFadt->XDsdt, ExternalFadt))
 209         {
 210             ExternalFadt->XDsdt = DsdtAddress;
 211             ExternalFadt->XFacs = ACPI_PTR_TO_PHYSADDR (&LocalFACS);
 212         }
 213         /* Complete the FADT with the checksum */
 214
 215         ExternalFadt->Header.Checksum = 0;
 216         ExternalFadt->Header.Checksum = (UINT8) -AcpiTbChecksum (
 217             (void *) ExternalFadt, ExternalFadt->Header.Length);
 218     }
 219     else
 220     {
 221         /*
 222          * Build a local FADT so we can test the hardware/event init
 223          */
 224         ACPI_MEMSET (&LocalFADT, 0, sizeof (ACPI_TABLE_FADT));
 225         ACPI_MOVE_NAME (LocalFADT.Header.Signature, ACPI_SIG_FADT);
 226
 227         /* Setup FADT header and DSDT/FACS addresses */
 228
 229         LocalFADT.Dsdt = 0;
 230         LocalFADT.Facs = 0;
 231
 232         LocalFADT.XDsdt = DsdtAddress;
 233         LocalFADT.XFacs = ACPI_PTR_TO_PHYSADDR (&LocalFACS);
 234
 235         LocalFADT.Header.Revision = 3;
 236         LocalFADT.Header.Length = sizeof (ACPI_TABLE_FADT);
 237
 238         /* Miscellaneous FADT fields */
 239
 240         LocalFADT.Gpe0BlockLength = 16;
 241         LocalFADT.Gpe0Block = 0x00001234;
 242
 243         LocalFADT.Gpe1BlockLength = 6;
 244         LocalFADT.Gpe1Block = 0x00005678;
 245         LocalFADT.Gpe1Base = 96;
 246
 247         LocalFADT.Pm1EventLength = 4;
 248         LocalFADT.Pm1aEventBlock = 0x00001aaa;
 249         LocalFADT.Pm1bEventBlock = 0x00001bbb;
 250
 251         LocalFADT.Pm1ControlLength = 2;
 252         LocalFADT.Pm1aControlBlock = 0xB0;
 253
 254         LocalFADT.PmTimerLength = 4;
 255         LocalFADT.PmTimerBlock = 0xA0;
 256
 257         LocalFADT.Pm2ControlBlock = 0xC0;
 258         LocalFADT.Pm2ControlLength = 1;
 259
 260         /* Setup one example X-64 field */
 261
 262         LocalFADT.XPm1bEventBlock.SpaceId = ACPI_ADR_SPACE_SYSTEM_IO;
 263         LocalFADT.XPm1bEventBlock.Address = LocalFADT.Pm1bEventBlock;
 264         LocalFADT.XPm1bEventBlock.BitWidth = (UINT8) ACPI_MUL_8 (LocalFADT.Pm1EventLength);
 265
 266         /* Complete the FADT with the checksum */
 267
 268         LocalFADT.Header.Checksum = 0;
 269         LocalFADT.Header.Checksum = (UINT8) -AcpiTbChecksum (
 270             (void *) &LocalFADT, LocalFADT.Header.Length);
 271     }
 272
 273     /* Build a FACS */
 274
 275     ACPI_MEMSET (&LocalFACS, 0, sizeof (ACPI_TABLE_FACS));
 276     ACPI_MOVE_NAME (LocalFACS.Signature, ACPI_SIG_FACS);
 277
 278     LocalFACS.Length = sizeof (ACPI_TABLE_FACS);
 279     LocalFACS.GlobalLock = 0x11AA0011;
 280
 281     return (AE_OK);
 282 }
 283
 284
 285 /******************************************************************************
 286  *
 287  * FUNCTION:    AeLocalGetRootPointer
 288  *
 289  * PARAMETERS:  None
 290  *
 291  * RETURN:      Address of the RSDP
 292  *
 293  * DESCRIPTION: Return a local RSDP, used to dynamically load tables via the
 294  *              standard ACPI mechanism.
 295  *
 296  *****************************************************************************/
 297
 298 ACPI_PHYSICAL_ADDRESS
 299 AeLocalGetRootPointer (
 300     void)
 301 {
 302
 303     return ((ACPI_PHYSICAL_ADDRESS) &LocalRSDP);
 304 }