xref: /illumos-gate/usr/src/cmd/acpi/iasl/dtcompile.c (revision 0250c53ad267726f2438e3c6556199a0bbf588a2)
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 - 2018, 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 "aslcompiler.h"
155 
156 #define _COMPONENT          DT_COMPILER
157         ACPI_MODULE_NAME    ("dtcompile")
158 
159 static char                 VersionString[9];
160 
161 
162 /* Local prototypes */
163 
164 static ACPI_STATUS
165 DtInitialize (
166     void);
167 
168 static ACPI_STATUS
169 DtCompileDataTable (
170     DT_FIELD                **Field);
171 
172 static void
173 DtInsertCompilerIds (
174     DT_FIELD                *FieldList);
175 
176 
177 /******************************************************************************
178  *
179  * FUNCTION:    DtDoCompile
180  *
181  * PARAMETERS:  None
182  *
183  * RETURN:      Status
184  *
185  * DESCRIPTION: Main entry point for the data table compiler.
186  *
187  * Note: Assumes Gbl_Files[ASL_FILE_INPUT] is initialized and the file is
188  *          open at seek offset zero.
189  *
190  *****************************************************************************/
191 
192 ACPI_STATUS
193 DtDoCompile (
194     void)
195 {
196     ACPI_STATUS             Status;
197     UINT8                   Event;
198     DT_FIELD                *FieldList;
199 
200 
201     /* Initialize globals */
202 
203     Status = DtInitialize ();
204     if (ACPI_FAILURE (Status))
205     {
206         printf ("Error during compiler initialization, 0x%X\n", Status);
207         return (Status);
208     }
209 
210     /* Preprocessor */
211 
212     if (Gbl_PreprocessFlag)
213     {
214         /* Preprocessor */
215 
216         Event = UtBeginEvent ("Preprocess input file");
217         PrDoPreprocess ();
218         UtEndEvent (Event);
219 
220         if (Gbl_PreprocessOnly)
221         {
222             return (AE_OK);
223         }
224     }
225 
226     /*
227      * Scan the input file (file is already open) and
228      * build the parse tree
229      */
230     Event = UtBeginEvent ("Scan and parse input file");
231     FieldList = DtScanFile (Gbl_Files[ASL_FILE_INPUT].Handle);
232     UtEndEvent (Event);
233 
234     /* Did the parse tree get successfully constructed? */
235 
236     if (!FieldList)
237     {
238         /* TBD: temporary error message. Msgs should come from function above */
239 
240         DtError (ASL_ERROR, ASL_MSG_SYNTAX, NULL,
241             "Input file does not appear to be an ASL or data table source file");
242 
243         Status = AE_ERROR;
244         goto CleanupAndExit;
245     }
246 
247     Event = UtBeginEvent ("Compile parse tree");
248 
249     /*
250      * Compile the parse tree
251      */
252     Status = DtCompileDataTable (&FieldList);
253     UtEndEvent (Event);
254 
255     if (ACPI_FAILURE (Status))
256     {
257         /* TBD: temporary error message. Msgs should come from function above */
258 
259         DtError (ASL_ERROR, ASL_MSG_SYNTAX, NULL,
260             "Could not compile input file");
261 
262         goto CleanupAndExit;
263     }
264 
265     /* Create/open the binary output file */
266 
267     Gbl_Files[ASL_FILE_AML_OUTPUT].Filename = NULL;
268     Status = FlOpenAmlOutputFile (Gbl_OutputFilenamePrefix);
269     if (ACPI_FAILURE (Status))
270     {
271         goto CleanupAndExit;
272     }
273 
274     /* Write the binary, then the optional hex file */
275 
276     DtOutputBinary (Gbl_RootTable);
277     HxDoHexOutput ();
278     DtWriteTableToListing ();
279 
280 CleanupAndExit:
281 
282     AcpiUtDeleteCaches ();
283     CmCleanupAndExit ();
284     return (Status);
285 }
286 
287 
288 /******************************************************************************
289  *
290  * FUNCTION:    DtInitialize
291  *
292  * PARAMETERS:  None
293  *
294  * RETURN:      Status
295  *
296  * DESCRIPTION: Initialize data table compiler globals. Enables multiple
297  *              compiles per invocation.
298  *
299  *****************************************************************************/
300 
301 static ACPI_STATUS
302 DtInitialize (
303     void)
304 {
305     ACPI_STATUS             Status;
306 
307 
308     Status = AcpiOsInitialize ();
309     if (ACPI_FAILURE (Status))
310     {
311         return (Status);
312     }
313 
314     Status = AcpiUtInitGlobals ();
315     if (ACPI_FAILURE (Status))
316     {
317         return (Status);
318     }
319 
320     AcpiUtSetIntegerWidth (2); /* Set width to 64 bits */
321 
322     Gbl_FieldList = NULL;
323     Gbl_RootTable = NULL;
324     Gbl_SubtableStack = NULL;
325 
326     sprintf (VersionString, "%X", (UINT32) ACPI_CA_VERSION);
327     return (AE_OK);
328 }
329 
330 
331 /******************************************************************************
332  *
333  * FUNCTION:    DtInsertCompilerIds
334  *
335  * PARAMETERS:  FieldList           - Current field list pointer
336  *
337  * RETURN:      None
338  *
339  * DESCRIPTION: Insert the IDs (Name, Version) of the current compiler into
340  *              the original ACPI table header.
341  *
342  *****************************************************************************/
343 
344 static void
345 DtInsertCompilerIds (
346     DT_FIELD                *FieldList)
347 {
348     DT_FIELD                *Next;
349     UINT32                  i;
350 
351 
352     /*
353      * Don't insert current compiler ID if requested. Used for compiler
354      * debug/validation only.
355      */
356     if (Gbl_UseOriginalCompilerId)
357     {
358         return;
359     }
360 
361     /* Walk to the Compiler fields at the end of the header */
362 
363     Next = FieldList;
364     for (i = 0; i < 7; i++)
365     {
366         Next = Next->Next;
367     }
368 
369     Next->Value = ASL_CREATOR_ID;
370     Next->Flags = DT_FIELD_NOT_ALLOCATED;
371 
372     Next = Next->Next;
373     Next->Value = VersionString;
374     Next->Flags = DT_FIELD_NOT_ALLOCATED;
375 }
376 
377 
378 /******************************************************************************
379  *
380  * FUNCTION:    DtCompileDataTable
381  *
382  * PARAMETERS:  FieldList           - Current field list pointer
383  *
384  * RETURN:      Status
385  *
386  * DESCRIPTION: Entry point to compile one data table
387  *
388  *****************************************************************************/
389 
390 static ACPI_STATUS
391 DtCompileDataTable (
392     DT_FIELD                **FieldList)
393 {
394     const ACPI_DMTABLE_DATA *TableData;
395     DT_SUBTABLE             *Subtable;
396     char                    *Signature;
397     ACPI_TABLE_HEADER       *AcpiTableHeader;
398     ACPI_STATUS             Status;
399     DT_FIELD                *RootField = *FieldList;
400 
401 
402     /* Verify that we at least have a table signature and save it */
403 
404     Signature = DtGetFieldValue (*FieldList);
405     if (!Signature)
406     {
407         sprintf (MsgBuffer, "Expected \"%s\"", "Signature");
408         DtNameError (ASL_ERROR, ASL_MSG_INVALID_FIELD_NAME,
409             *FieldList, MsgBuffer);
410         return (AE_ERROR);
411     }
412 
413     Gbl_Signature = UtLocalCacheCalloc (strlen (Signature) + 1);
414     strcpy (Gbl_Signature, Signature);
415 
416     /*
417      * Handle tables that don't use the common ACPI table header structure.
418      * Currently, these are the FACS and RSDP. Also check for an OEMx table,
419      * these tables have user-defined contents.
420      */
421     if (ACPI_COMPARE_NAME (Signature, ACPI_SIG_FACS))
422     {
423         Status = DtCompileFacs (FieldList);
424         if (ACPI_FAILURE (Status))
425         {
426             return (Status);
427         }
428 
429         DtSetTableLength ();
430         return (Status);
431     }
432     else if (ACPI_VALIDATE_RSDP_SIG (Signature))
433     {
434         Status = DtCompileRsdp (FieldList);
435         return (Status);
436     }
437     else if (ACPI_COMPARE_NAME (Signature, ACPI_SIG_S3PT))
438     {
439         Status = DtCompileS3pt (FieldList);
440         if (ACPI_FAILURE (Status))
441         {
442             return (Status);
443         }
444 
445         DtSetTableLength ();
446         return (Status);
447     }
448 
449     /*
450      * All other tables must use the common ACPI table header. Insert the
451      * current iASL IDs (name, version), and compile the header now.
452      */
453     DtInsertCompilerIds (*FieldList);
454 
455     Status = DtCompileTable (FieldList, AcpiDmTableInfoHeader,
456         &Gbl_RootTable);
457     if (ACPI_FAILURE (Status))
458     {
459         return (Status);
460     }
461 
462     DtPushSubtable (Gbl_RootTable);
463 
464     /* Validate the signature via the ACPI table list */
465 
466     TableData = AcpiDmGetTableData (Signature);
467     if (!TableData || Gbl_CompileGeneric)
468     {
469         /* Unknown table signature and/or force generic compile */
470 
471         DtCompileGeneric ((void **) FieldList, NULL, NULL);
472         goto FinishHeader;
473     }
474 
475     /* Dispatch to per-table compile */
476 
477     if (TableData->CmTableHandler)
478     {
479         /* Complex table, has a handler */
480 
481         Status = TableData->CmTableHandler ((void **) FieldList);
482         if (ACPI_FAILURE (Status))
483         {
484             return (Status);
485         }
486     }
487     else if (TableData->TableInfo)
488     {
489         /* Simple table, just walk the info table, unless its empty */
490 
491         if (FieldList && *FieldList)
492         {
493             Subtable = NULL;
494             Status = DtCompileTable (FieldList, TableData->TableInfo,
495                 &Subtable);
496             if (ACPI_FAILURE (Status))
497             {
498                 return (Status);
499             }
500 
501             DtInsertSubtable (Gbl_RootTable, Subtable);
502             DtPopSubtable ();
503         }
504     }
505     else
506     {
507         DtFatal (ASL_MSG_COMPILER_INTERNAL, *FieldList,
508             "Missing table dispatch info");
509         return (AE_ERROR);
510     }
511 
512 FinishHeader:
513 
514     /* Set the final table length and then the checksum */
515 
516     DtSetTableLength ();
517     AcpiTableHeader = ACPI_CAST_PTR (
518         ACPI_TABLE_HEADER, Gbl_RootTable->Buffer);
519     DtSetTableChecksum (&AcpiTableHeader->Checksum);
520 
521     DtDumpFieldList (RootField);
522     DtDumpSubtableList ();
523     return (AE_OK);
524 }
525 
526 
527 /******************************************************************************
528  *
529  * FUNCTION:    DtCompileTable
530  *
531  * PARAMETERS:  Field               - Current field list pointer
532  *              Info                - Info table for this ACPI table
533  *              RetSubtable         - Compile result of table
534  *
535  * RETURN:      Status
536  *
537  * DESCRIPTION: Compile a subtable
538  *
539  *****************************************************************************/
540 
541 ACPI_STATUS
542 DtCompileTable (
543     DT_FIELD                **Field,
544     ACPI_DMTABLE_INFO       *Info,
545     DT_SUBTABLE             **RetSubtable)
546 {
547     DT_FIELD                *LocalField;
548     UINT32                  Length;
549     DT_SUBTABLE             *Subtable;
550     DT_SUBTABLE             *InlineSubtable = NULL;
551     UINT32                  FieldLength = 0;
552     UINT8                   FieldType;
553     UINT8                   *Buffer;
554     UINT8                   *FlagBuffer = NULL;
555     char                    *String;
556     UINT32                  CurrentFlagByteOffset = 0;
557     ACPI_STATUS             Status = AE_OK;
558 
559 
560     if (!Field)
561     {
562         return (AE_BAD_PARAMETER);
563     }
564     if (!*Field)
565     {
566         /*
567          * The field list is empty, this means that we are out of fields to
568          * parse. In other words, we are at the end of the table.
569          */
570         return (AE_END_OF_TABLE);
571     }
572 
573     /* Ignore optional subtable if name does not match */
574 
575     if ((Info->Flags & DT_OPTIONAL) &&
576         strcmp ((*Field)->Name, Info->Name))
577     {
578         *RetSubtable = NULL;
579         return (AE_OK);
580     }
581 
582     Length = DtGetSubtableLength (*Field, Info);
583     if (Length == ASL_EOF)
584     {
585         return (AE_ERROR);
586     }
587 
588     Subtable = UtSubtableCacheCalloc ();
589 
590     if (Length > 0)
591     {
592         String = UtLocalCacheCalloc (Length);
593         Subtable->Buffer = ACPI_CAST_PTR (UINT8, String);
594     }
595 
596     Subtable->Length = Length;
597     Subtable->TotalLength = Length;
598     Buffer = Subtable->Buffer;
599 
600     LocalField = *Field;
601     Subtable->Name = LocalField->Name;
602 
603     /*
604      * Main loop walks the info table for this ACPI table or subtable
605      */
606     for (; Info->Name; Info++)
607     {
608         if (Info->Opcode == ACPI_DMT_EXTRA_TEXT)
609         {
610             continue;
611         }
612 
613         if (!LocalField)
614         {
615             sprintf (MsgBuffer, "Found NULL field - Field name \"%s\" needed",
616                 Info->Name);
617             DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer);
618             Status = AE_BAD_DATA;
619             goto Error;
620         }
621 
622         /* Maintain table offsets */
623 
624         LocalField->TableOffset = Gbl_CurrentTableOffset;
625         FieldLength = DtGetFieldLength (LocalField, Info);
626         Gbl_CurrentTableOffset += FieldLength;
627 
628         FieldType = DtGetFieldType (Info);
629         Gbl_InputFieldCount++;
630 
631         switch (FieldType)
632         {
633         case DT_FIELD_TYPE_FLAGS_INTEGER:
634             /*
635              * Start of the definition of a flags field.
636              * This master flags integer starts at value zero, in preparation
637              * to compile and insert the flag fields from the individual bits
638              */
639             LocalField = LocalField->Next;
640             *Field = LocalField;
641 
642             FlagBuffer = Buffer;
643             CurrentFlagByteOffset = Info->Offset;
644             break;
645 
646         case DT_FIELD_TYPE_FLAG:
647 
648             /* Individual Flag field, can be multiple bits */
649 
650             if (FlagBuffer)
651             {
652                 /*
653                  * We must increment the FlagBuffer when we have crossed
654                  * into the next flags byte within the flags field
655                  * of type DT_FIELD_TYPE_FLAGS_INTEGER.
656                  */
657                 FlagBuffer += (Info->Offset - CurrentFlagByteOffset);
658                 CurrentFlagByteOffset = Info->Offset;
659 
660                 DtCompileFlag (FlagBuffer, LocalField, Info);
661             }
662             else
663             {
664                 /* TBD - this is an internal error */
665             }
666 
667             LocalField = LocalField->Next;
668             *Field = LocalField;
669             break;
670 
671         case DT_FIELD_TYPE_INLINE_SUBTABLE:
672             /*
673              * Recursion (one level max): compile GAS (Generic Address)
674              * or Notify in-line subtable
675              */
676             *Field = LocalField;
677 
678             switch (Info->Opcode)
679             {
680             case ACPI_DMT_GAS:
681 
682                 Status = DtCompileTable (Field, AcpiDmTableInfoGas,
683                     &InlineSubtable);
684                 break;
685 
686             case ACPI_DMT_HESTNTFY:
687 
688                 Status = DtCompileTable (Field, AcpiDmTableInfoHestNotify,
689                     &InlineSubtable);
690                 break;
691 
692             case ACPI_DMT_IORTMEM:
693 
694                 Status = DtCompileTable (Field, AcpiDmTableInfoIortAcc,
695                     &InlineSubtable);
696                 break;
697 
698             default:
699                 sprintf (MsgBuffer, "Invalid DMT opcode: 0x%.2X",
700                     Info->Opcode);
701                 DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer);
702                 Status = AE_BAD_DATA;
703                 break;
704             }
705 
706             if (ACPI_FAILURE (Status))
707             {
708                 goto Error;
709             }
710 
711             DtSetSubtableLength (InlineSubtable);
712 
713             memcpy (Buffer, InlineSubtable->Buffer, FieldLength);
714             LocalField = *Field;
715             break;
716 
717         case DT_FIELD_TYPE_LABEL:
718 
719             DtWriteFieldToListing (Buffer, LocalField, 0);
720             LocalField = LocalField->Next;
721             break;
722 
723         default:
724 
725             /* Normal case for most field types (Integer, String, etc.) */
726 
727             DtCompileOneField (Buffer, LocalField,
728                 FieldLength, FieldType, Info->Flags);
729 
730             DtWriteFieldToListing (Buffer, LocalField, FieldLength);
731             LocalField = LocalField->Next;
732 
733             if (Info->Flags & DT_LENGTH)
734             {
735                 /* Field is an Integer that will contain a subtable length */
736 
737                 Subtable->LengthField = Buffer;
738                 Subtable->SizeOfLengthField = FieldLength;
739             }
740             break;
741         }
742 
743         Buffer += FieldLength;
744     }
745 
746     *Field = LocalField;
747     *RetSubtable = Subtable;
748     return (AE_OK);
749 
750 Error:
751     ACPI_FREE (Subtable->Buffer);
752     ACPI_FREE (Subtable);
753     return (Status);
754 }
755 
756 
757 /******************************************************************************
758  *
759  * FUNCTION:    DtCompileTwoSubtables
760  *
761  * PARAMETERS:  List                - Current field list pointer
762  *              TableInfo1          - Info table 1
763  *              TableInfo1          - Info table 2
764  *
765  * RETURN:      Status
766  *
767  * DESCRIPTION: Compile tables with a header and one or more same subtables.
768  *              Include CPEP, EINJ, ERST, MCFG, MSCT, WDAT
769  *
770  *****************************************************************************/
771 
772 ACPI_STATUS
773 DtCompileTwoSubtables (
774     void                    **List,
775     ACPI_DMTABLE_INFO       *TableInfo1,
776     ACPI_DMTABLE_INFO       *TableInfo2)
777 {
778     ACPI_STATUS             Status;
779     DT_SUBTABLE             *Subtable;
780     DT_SUBTABLE             *ParentTable;
781     DT_FIELD                **PFieldList = (DT_FIELD **) List;
782 
783 
784     Status = DtCompileTable (PFieldList, TableInfo1, &Subtable);
785     if (ACPI_FAILURE (Status))
786     {
787         return (Status);
788     }
789 
790     ParentTable = DtPeekSubtable ();
791     DtInsertSubtable (ParentTable, Subtable);
792 
793     while (*PFieldList)
794     {
795         Status = DtCompileTable (PFieldList, TableInfo2, &Subtable);
796         if (ACPI_FAILURE (Status))
797         {
798             return (Status);
799         }
800 
801         DtInsertSubtable (ParentTable, Subtable);
802     }
803 
804     return (AE_OK);
805 }
806 
807 
808 /******************************************************************************
809  *
810  * FUNCTION:    DtCompilePadding
811  *
812  * PARAMETERS:  Length              - Padding field size
813  *              RetSubtable         - Compile result of table
814  *
815  * RETURN:      Status
816  *
817  * DESCRIPTION: Compile a subtable for padding purpose
818  *
819  *****************************************************************************/
820 
821 ACPI_STATUS
822 DtCompilePadding (
823     UINT32                  Length,
824     DT_SUBTABLE             **RetSubtable)
825 {
826     DT_SUBTABLE             *Subtable;
827     /* UINT8                   *Buffer; */
828     char                    *String;
829 
830 
831     Subtable = UtSubtableCacheCalloc ();
832 
833     if (Length > 0)
834     {
835         String = UtLocalCacheCalloc (Length);
836         Subtable->Buffer = ACPI_CAST_PTR (UINT8, String);
837     }
838 
839     Subtable->Length = Length;
840     Subtable->TotalLength = Length;
841     /* Buffer = Subtable->Buffer; */
842 
843     *RetSubtable = Subtable;
844     return (AE_OK);
845 }
846