xref: /freebsd/sys/contrib/dev/acpica/compiler/dtcompile.c (revision 7c1b51d6dc2e165ae7333373513b080f17cf79bd)
1 /******************************************************************************
2  *
3  * Module Name: dtcompile.c - Front-end for data table compiler
4  *
5  *****************************************************************************/
6 
7 /******************************************************************************
8  *
9  * 1. Copyright Notice
10  *
11  * Some or all of this work - Copyright (c) 1999 - 2017, 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  * Alternatively, you may choose to be licensed under the terms of the
117  * following license:
118  *
119  * Redistribution and use in source and binary forms, with or without
120  * modification, are permitted provided that the following conditions
121  * are met:
122  * 1. Redistributions of source code must retain the above copyright
123  *    notice, this list of conditions, and the following disclaimer,
124  *    without modification.
125  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126  *    substantially similar to the "NO WARRANTY" disclaimer below
127  *    ("Disclaimer") and any redistribution must be conditioned upon
128  *    including a substantially similar Disclaimer requirement for further
129  *    binary redistribution.
130  * 3. Neither the names of the above-listed copyright holders nor the names
131  *    of any contributors may be used to endorse or promote products derived
132  *    from this software without specific prior written permission.
133  *
134  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145  *
146  * Alternatively, you may choose to be licensed under the terms of the
147  * GNU General Public License ("GPL") version 2 as published by the Free
148  * Software Foundation.
149  *
150  *****************************************************************************/
151 
152 #define _DECLARE_DT_GLOBALS
153 
154 #include <contrib/dev/acpica/compiler/aslcompiler.h>
155 #include <contrib/dev/acpica/compiler/dtcompiler.h>
156 
157 #define _COMPONENT          DT_COMPILER
158         ACPI_MODULE_NAME    ("dtcompile")
159 
160 static char                 VersionString[9];
161 
162 
163 /* Local prototypes */
164 
165 static ACPI_STATUS
166 DtInitialize (
167     void);
168 
169 static ACPI_STATUS
170 DtCompileDataTable (
171     DT_FIELD                **Field);
172 
173 static void
174 DtInsertCompilerIds (
175     DT_FIELD                *FieldList);
176 
177 
178 /******************************************************************************
179  *
180  * FUNCTION:    DtDoCompile
181  *
182  * PARAMETERS:  None
183  *
184  * RETURN:      Status
185  *
186  * DESCRIPTION: Main entry point for the data table compiler.
187  *
188  * Note: Assumes Gbl_Files[ASL_FILE_INPUT] is initialized and the file is
189  *          open at seek offset zero.
190  *
191  *****************************************************************************/
192 
193 ACPI_STATUS
194 DtDoCompile (
195     void)
196 {
197     ACPI_STATUS             Status;
198     UINT8                   Event;
199     DT_FIELD                *FieldList;
200 
201 
202     /* Initialize globals */
203 
204     Status = DtInitialize ();
205     if (ACPI_FAILURE (Status))
206     {
207         printf ("Error during compiler initialization, 0x%X\n", Status);
208         return (Status);
209     }
210 
211     /* Preprocessor */
212 
213     if (Gbl_PreprocessFlag)
214     {
215         /* Preprocessor */
216 
217         Event = UtBeginEvent ("Preprocess input file");
218         PrDoPreprocess ();
219         UtEndEvent (Event);
220 
221         if (Gbl_PreprocessOnly)
222         {
223             return (AE_OK);
224         }
225     }
226 
227     /*
228      * Scan the input file (file is already open) and
229      * build the parse tree
230      */
231     Event = UtBeginEvent ("Scan and parse input file");
232     FieldList = DtScanFile (Gbl_Files[ASL_FILE_INPUT].Handle);
233     UtEndEvent (Event);
234 
235     /* Did the parse tree get successfully constructed? */
236 
237     if (!FieldList)
238     {
239         /* TBD: temporary error message. Msgs should come from function above */
240 
241         DtError (ASL_ERROR, ASL_MSG_SYNTAX, NULL,
242             "Input file does not appear to be an ASL or data table source file");
243 
244         Status = AE_ERROR;
245         goto CleanupAndExit;
246     }
247 
248     Event = UtBeginEvent ("Compile parse tree");
249 
250     /*
251      * Compile the parse tree
252      */
253     Status = DtCompileDataTable (&FieldList);
254     UtEndEvent (Event);
255 
256     if (ACPI_FAILURE (Status))
257     {
258         /* TBD: temporary error message. Msgs should come from function above */
259 
260         DtError (ASL_ERROR, ASL_MSG_SYNTAX, NULL,
261             "Could not compile input file");
262 
263         goto CleanupAndExit;
264     }
265 
266     /* Create/open the binary output file */
267 
268     Gbl_Files[ASL_FILE_AML_OUTPUT].Filename = NULL;
269     Status = FlOpenAmlOutputFile (Gbl_OutputFilenamePrefix);
270     if (ACPI_FAILURE (Status))
271     {
272         goto CleanupAndExit;
273     }
274 
275     /* Write the binary, then the optional hex file */
276 
277     DtOutputBinary (Gbl_RootTable);
278     HxDoHexOutput ();
279     DtWriteTableToListing ();
280 
281 CleanupAndExit:
282 
283     AcpiUtDeleteCaches ();
284     DtDeleteCaches ();
285     CmCleanupAndExit ();
286     return (Status);
287 }
288 
289 
290 /******************************************************************************
291  *
292  * FUNCTION:    DtInitialize
293  *
294  * PARAMETERS:  None
295  *
296  * RETURN:      Status
297  *
298  * DESCRIPTION: Initialize data table compiler globals. Enables multiple
299  *              compiles per invocation.
300  *
301  *****************************************************************************/
302 
303 static ACPI_STATUS
304 DtInitialize (
305     void)
306 {
307     ACPI_STATUS             Status;
308 
309 
310     Status = AcpiOsInitialize ();
311     if (ACPI_FAILURE (Status))
312     {
313         return (Status);
314     }
315 
316     Status = AcpiUtInitGlobals ();
317     if (ACPI_FAILURE (Status))
318     {
319         return (Status);
320     }
321 
322     AcpiUtSetIntegerWidth (2); /* Set width to 64 bits */
323 
324     Gbl_FieldList = NULL;
325     Gbl_RootTable = NULL;
326     Gbl_SubtableStack = NULL;
327 
328     sprintf (VersionString, "%X", (UINT32) ACPI_CA_VERSION);
329     return (AE_OK);
330 }
331 
332 
333 /******************************************************************************
334  *
335  * FUNCTION:    DtInsertCompilerIds
336  *
337  * PARAMETERS:  FieldList           - Current field list pointer
338  *
339  * RETURN:      None
340  *
341  * DESCRIPTION: Insert the IDs (Name, Version) of the current compiler into
342  *              the original ACPI table header.
343  *
344  *****************************************************************************/
345 
346 static void
347 DtInsertCompilerIds (
348     DT_FIELD                *FieldList)
349 {
350     DT_FIELD                *Next;
351     UINT32                  i;
352 
353 
354     /*
355      * Don't insert current compiler ID if requested. Used for compiler
356      * debug/validation only.
357      */
358     if (Gbl_UseOriginalCompilerId)
359     {
360         return;
361     }
362 
363     /* Walk to the Compiler fields at the end of the header */
364 
365     Next = FieldList;
366     for (i = 0; i < 7; i++)
367     {
368         Next = Next->Next;
369     }
370 
371     Next->Value = ASL_CREATOR_ID;
372     Next->Flags = DT_FIELD_NOT_ALLOCATED;
373 
374     Next = Next->Next;
375     Next->Value = VersionString;
376     Next->Flags = DT_FIELD_NOT_ALLOCATED;
377 }
378 
379 
380 /******************************************************************************
381  *
382  * FUNCTION:    DtCompileDataTable
383  *
384  * PARAMETERS:  FieldList           - Current field list pointer
385  *
386  * RETURN:      Status
387  *
388  * DESCRIPTION: Entry point to compile one data table
389  *
390  *****************************************************************************/
391 
392 static ACPI_STATUS
393 DtCompileDataTable (
394     DT_FIELD                **FieldList)
395 {
396     const ACPI_DMTABLE_DATA *TableData;
397     DT_SUBTABLE             *Subtable;
398     char                    *Signature;
399     ACPI_TABLE_HEADER       *AcpiTableHeader;
400     ACPI_STATUS             Status;
401     DT_FIELD                *RootField = *FieldList;
402 
403 
404     /* Verify that we at least have a table signature and save it */
405 
406     Signature = DtGetFieldValue (*FieldList);
407     if (!Signature)
408     {
409         sprintf (MsgBuffer, "Expected \"%s\"", "Signature");
410         DtNameError (ASL_ERROR, ASL_MSG_INVALID_FIELD_NAME,
411             *FieldList, MsgBuffer);
412         return (AE_ERROR);
413     }
414 
415     Gbl_Signature = UtStringCacheCalloc (strlen (Signature) + 1);
416     strcpy (Gbl_Signature, Signature);
417 
418     /*
419      * Handle tables that don't use the common ACPI table header structure.
420      * Currently, these are the FACS and RSDP. Also check for an OEMx table,
421      * these tables have user-defined contents.
422      */
423     if (ACPI_COMPARE_NAME (Signature, ACPI_SIG_FACS))
424     {
425         Status = DtCompileFacs (FieldList);
426         if (ACPI_FAILURE (Status))
427         {
428             return (Status);
429         }
430 
431         DtSetTableLength ();
432         return (Status);
433     }
434     else if (ACPI_VALIDATE_RSDP_SIG (Signature))
435     {
436         Status = DtCompileRsdp (FieldList);
437         return (Status);
438     }
439     else if (ACPI_COMPARE_NAME (Signature, ACPI_SIG_S3PT))
440     {
441         Status = DtCompileS3pt (FieldList);
442         if (ACPI_FAILURE (Status))
443         {
444             return (Status);
445         }
446 
447         DtSetTableLength ();
448         return (Status);
449     }
450 
451     /*
452      * All other tables must use the common ACPI table header. Insert the
453      * current iASL IDs (name, version), and compile the header now.
454      */
455     DtInsertCompilerIds (*FieldList);
456 
457     Status = DtCompileTable (FieldList, AcpiDmTableInfoHeader,
458         &Gbl_RootTable, TRUE);
459     if (ACPI_FAILURE (Status))
460     {
461         return (Status);
462     }
463 
464     DtPushSubtable (Gbl_RootTable);
465 
466     /* Validate the signature via the ACPI table list */
467 
468     TableData = AcpiDmGetTableData (Signature);
469     if (!TableData || Gbl_CompileGeneric)
470     {
471         /* Unknown table signature and/or force generic compile */
472 
473         DtCompileGeneric ((void **) FieldList, NULL, NULL);
474         goto FinishHeader;
475     }
476 
477     /* Dispatch to per-table compile */
478 
479     if (TableData->CmTableHandler)
480     {
481         /* Complex table, has a handler */
482 
483         Status = TableData->CmTableHandler ((void **) FieldList);
484         if (ACPI_FAILURE (Status))
485         {
486             return (Status);
487         }
488     }
489     else if (TableData->TableInfo)
490     {
491         /* Simple table, just walk the info table, unless its empty */
492 
493         if (FieldList && *FieldList)
494         {
495             Subtable = NULL;
496             Status = DtCompileTable (FieldList, TableData->TableInfo,
497                 &Subtable, TRUE);
498             if (ACPI_FAILURE (Status))
499             {
500                 return (Status);
501             }
502 
503             DtInsertSubtable (Gbl_RootTable, Subtable);
504             DtPopSubtable ();
505         }
506     }
507     else
508     {
509         DtFatal (ASL_MSG_COMPILER_INTERNAL, *FieldList,
510             "Missing table dispatch info");
511         return (AE_ERROR);
512     }
513 
514 FinishHeader:
515 
516     /* Set the final table length and then the checksum */
517 
518     DtSetTableLength ();
519     AcpiTableHeader = ACPI_CAST_PTR (
520         ACPI_TABLE_HEADER, Gbl_RootTable->Buffer);
521     DtSetTableChecksum (&AcpiTableHeader->Checksum);
522 
523     DtDumpFieldList (RootField);
524     DtDumpSubtableList ();
525     return (AE_OK);
526 }
527 
528 
529 /******************************************************************************
530  *
531  * FUNCTION:    DtCompileTable
532  *
533  * PARAMETERS:  Field               - Current field list pointer
534  *              Info                - Info table for this ACPI table
535  *              RetSubtable         - Compile result of table
536  *              Required            - If this subtable must exist
537  *
538  * RETURN:      Status
539  *
540  * DESCRIPTION: Compile a subtable
541  *
542  *****************************************************************************/
543 
544 ACPI_STATUS
545 DtCompileTable (
546     DT_FIELD                **Field,
547     ACPI_DMTABLE_INFO       *Info,
548     DT_SUBTABLE             **RetSubtable,
549     BOOLEAN                 Required)
550 {
551     DT_FIELD                *LocalField;
552     UINT32                  Length;
553     DT_SUBTABLE             *Subtable;
554     DT_SUBTABLE             *InlineSubtable = NULL;
555     UINT32                  FieldLength = 0;
556     UINT8                   FieldType;
557     UINT8                   *Buffer;
558     UINT8                   *FlagBuffer = NULL;
559     char                    *String;
560     UINT32                  CurrentFlagByteOffset = 0;
561     ACPI_STATUS             Status = AE_OK;
562 
563 
564     if (!Field || !*Field)
565     {
566         return (AE_BAD_PARAMETER);
567     }
568 
569     /* Ignore optional subtable if name does not match */
570 
571     if ((Info->Flags & DT_OPTIONAL) &&
572         strcmp ((*Field)->Name, Info->Name))
573     {
574         *RetSubtable = NULL;
575         return (AE_OK);
576     }
577 
578     Length = DtGetSubtableLength (*Field, Info);
579     if (Length == ASL_EOF)
580     {
581         return (AE_ERROR);
582     }
583 
584     Subtable = UtSubtableCacheCalloc ();
585 
586     if (Length > 0)
587     {
588         String = UtStringCacheCalloc (Length);
589         Subtable->Buffer = ACPI_CAST_PTR (UINT8, String);
590     }
591 
592     Subtable->Length = Length;
593     Subtable->TotalLength = Length;
594     Buffer = Subtable->Buffer;
595 
596     LocalField = *Field;
597     Subtable->Name = LocalField->Name;
598 
599     /*
600      * Main loop walks the info table for this ACPI table or subtable
601      */
602     for (; Info->Name; Info++)
603     {
604         if (Info->Opcode == ACPI_DMT_EXTRA_TEXT)
605         {
606             continue;
607         }
608 
609         if (!LocalField)
610         {
611             sprintf (MsgBuffer, "Found NULL field - Field name \"%s\" needed",
612                 Info->Name);
613             DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer);
614             Status = AE_BAD_DATA;
615             goto Error;
616         }
617 
618         /* Maintain table offsets */
619 
620         LocalField->TableOffset = Gbl_CurrentTableOffset;
621         FieldLength = DtGetFieldLength (LocalField, Info);
622         Gbl_CurrentTableOffset += FieldLength;
623 
624         FieldType = DtGetFieldType (Info);
625         Gbl_InputFieldCount++;
626 
627         switch (FieldType)
628         {
629         case DT_FIELD_TYPE_FLAGS_INTEGER:
630             /*
631              * Start of the definition of a flags field.
632              * This master flags integer starts at value zero, in preparation
633              * to compile and insert the flag fields from the individual bits
634              */
635             LocalField = LocalField->Next;
636             *Field = LocalField;
637 
638             FlagBuffer = Buffer;
639             CurrentFlagByteOffset = Info->Offset;
640             break;
641 
642         case DT_FIELD_TYPE_FLAG:
643 
644             /* Individual Flag field, can be multiple bits */
645 
646             if (FlagBuffer)
647             {
648                 /*
649                  * We must increment the FlagBuffer when we have crossed
650                  * into the next flags byte within the flags field
651                  * of type DT_FIELD_TYPE_FLAGS_INTEGER.
652                  */
653                 FlagBuffer += (Info->Offset - CurrentFlagByteOffset);
654                 CurrentFlagByteOffset = Info->Offset;
655 
656                 DtCompileFlag (FlagBuffer, LocalField, Info);
657             }
658             else
659             {
660                 /* TBD - this is an internal error */
661             }
662 
663             LocalField = LocalField->Next;
664             *Field = LocalField;
665             break;
666 
667         case DT_FIELD_TYPE_INLINE_SUBTABLE:
668             /*
669              * Recursion (one level max): compile GAS (Generic Address)
670              * or Notify in-line subtable
671              */
672             *Field = LocalField;
673 
674             switch (Info->Opcode)
675             {
676             case ACPI_DMT_GAS:
677 
678                 Status = DtCompileTable (Field, AcpiDmTableInfoGas,
679                     &InlineSubtable, TRUE);
680                 break;
681 
682             case ACPI_DMT_HESTNTFY:
683 
684                 Status = DtCompileTable (Field, AcpiDmTableInfoHestNotify,
685                     &InlineSubtable, TRUE);
686                 break;
687 
688             case ACPI_DMT_IORTMEM:
689 
690                 Status = DtCompileTable (Field, AcpiDmTableInfoIortAcc,
691                     &InlineSubtable, TRUE);
692                 break;
693 
694             default:
695                 sprintf (MsgBuffer, "Invalid DMT opcode: 0x%.2X",
696                     Info->Opcode);
697                 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer);
698                 Status = AE_BAD_DATA;
699                 break;
700             }
701 
702             if (ACPI_FAILURE (Status))
703             {
704                 goto Error;
705             }
706 
707             DtSetSubtableLength (InlineSubtable);
708 
709             memcpy (Buffer, InlineSubtable->Buffer, FieldLength);
710             LocalField = *Field;
711             break;
712 
713         case DT_FIELD_TYPE_LABEL:
714 
715             DtWriteFieldToListing (Buffer, LocalField, 0);
716             LocalField = LocalField->Next;
717             break;
718 
719         default:
720 
721             /* Normal case for most field types (Integer, String, etc.) */
722 
723             DtCompileOneField (Buffer, LocalField,
724                 FieldLength, FieldType, Info->Flags);
725 
726             DtWriteFieldToListing (Buffer, LocalField, FieldLength);
727             LocalField = LocalField->Next;
728 
729             if (Info->Flags & DT_LENGTH)
730             {
731                 /* Field is an Integer that will contain a subtable length */
732 
733                 Subtable->LengthField = Buffer;
734                 Subtable->SizeOfLengthField = FieldLength;
735             }
736             break;
737         }
738 
739         Buffer += FieldLength;
740     }
741 
742     *Field = LocalField;
743     *RetSubtable = Subtable;
744     return (AE_OK);
745 
746 Error:
747     ACPI_FREE (Subtable->Buffer);
748     ACPI_FREE (Subtable);
749     return (Status);
750 }
751 
752 
753 /******************************************************************************
754  *
755  * FUNCTION:    DtCompileTwoSubtables
756  *
757  * PARAMETERS:  List                - Current field list pointer
758  *              TableInfo1          - Info table 1
759  *              TableInfo1          - Info table 2
760  *
761  * RETURN:      Status
762  *
763  * DESCRIPTION: Compile tables with a header and one or more same subtables.
764  *              Include CPEP, EINJ, ERST, MCFG, MSCT, WDAT
765  *
766  *****************************************************************************/
767 
768 ACPI_STATUS
769 DtCompileTwoSubtables (
770     void                    **List,
771     ACPI_DMTABLE_INFO       *TableInfo1,
772     ACPI_DMTABLE_INFO       *TableInfo2)
773 {
774     ACPI_STATUS             Status;
775     DT_SUBTABLE             *Subtable;
776     DT_SUBTABLE             *ParentTable;
777     DT_FIELD                **PFieldList = (DT_FIELD **) List;
778 
779 
780     Status = DtCompileTable (PFieldList, TableInfo1, &Subtable, TRUE);
781     if (ACPI_FAILURE (Status))
782     {
783         return (Status);
784     }
785 
786     ParentTable = DtPeekSubtable ();
787     DtInsertSubtable (ParentTable, Subtable);
788 
789     while (*PFieldList)
790     {
791         Status = DtCompileTable (PFieldList, TableInfo2, &Subtable, FALSE);
792         if (ACPI_FAILURE (Status))
793         {
794             return (Status);
795         }
796 
797         DtInsertSubtable (ParentTable, Subtable);
798     }
799 
800     return (AE_OK);
801 }
802 
803 
804 /******************************************************************************
805  *
806  * FUNCTION:    DtCompilePadding
807  *
808  * PARAMETERS:  Length              - Padding field size
809  *              RetSubtable         - Compile result of table
810  *
811  * RETURN:      Status
812  *
813  * DESCRIPTION: Compile a subtable for padding purpose
814  *
815  *****************************************************************************/
816 
817 ACPI_STATUS
818 DtCompilePadding (
819     UINT32                  Length,
820     DT_SUBTABLE             **RetSubtable)
821 {
822     DT_SUBTABLE             *Subtable;
823     /* UINT8                   *Buffer; */
824     char                    *String;
825 
826 
827     Subtable = UtSubtableCacheCalloc ();
828 
829     if (Length > 0)
830     {
831         String = UtStringCacheCalloc (Length);
832         Subtable->Buffer = ACPI_CAST_PTR (UINT8, String);
833     }
834 
835     Subtable->Length = Length;
836     Subtable->TotalLength = Length;
837     /* Buffer = Subtable->Buffer; */
838 
839     *RetSubtable = Subtable;
840     return (AE_OK);
841 }
842