dtutils.c revision 281687 
1/******************************************************************************
2 *
3 * Module Name: dtutils.c - Utility routines for the data table compiler
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2015, 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 <contrib/dev/acpica/compiler/aslcompiler.h>
45#include <contrib/dev/acpica/compiler/dtcompiler.h>
46#include <contrib/dev/acpica/include/actables.h>
47
48#define _COMPONENT          DT_COMPILER
49        ACPI_MODULE_NAME    ("dtutils")
50
51/* Local prototypes */
52
53static void
54DtSum (
55    DT_SUBTABLE             *Subtable,
56    void                    *Context,
57    void                    *ReturnValue);
58
59
60/******************************************************************************
61 *
62 * FUNCTION:    DtError
63 *
64 * PARAMETERS:  Level               - Seriousness (Warning/error, etc.)
65 *              MessageId           - Index into global message buffer
66 *              Op                  - Parse node where error happened
67 *              ExtraMessage        - additional error message
68 *
69 * RETURN:      None
70 *
71 * DESCRIPTION: Common error interface for data table compiler
72 *
73 *****************************************************************************/
74
75void
76DtError (
77    UINT8                   Level,
78    UINT16                  MessageId,
79    DT_FIELD                *FieldObject,
80    char                    *ExtraMessage)
81{
82
83    /* Check if user wants to ignore this exception */
84
85    if (AslIsExceptionDisabled (Level, MessageId))
86    {
87        return;
88    }
89
90    if (FieldObject)
91    {
92        AslCommonError (Level, MessageId,
93            FieldObject->Line,
94            FieldObject->Line,
95            FieldObject->ByteOffset,
96            FieldObject->Column,
97            Gbl_Files[ASL_FILE_INPUT].Filename, ExtraMessage);
98    }
99    else
100    {
101        AslCommonError (Level, MessageId, 0,
102            0, 0, 0, 0, ExtraMessage);
103    }
104}
105
106
107/******************************************************************************
108 *
109 * FUNCTION:    DtNameError
110 *
111 * PARAMETERS:  Level               - Seriousness (Warning/error, etc.)
112 *              MessageId           - Index into global message buffer
113 *              Op                  - Parse node where error happened
114 *              ExtraMessage        - additional error message
115 *
116 * RETURN:      None
117 *
118 * DESCRIPTION: Error interface for named objects
119 *
120 *****************************************************************************/
121
122void
123DtNameError (
124    UINT8                   Level,
125    UINT16                  MessageId,
126    DT_FIELD                *FieldObject,
127    char                    *ExtraMessage)
128{
129
130    switch (Level)
131    {
132    case ASL_WARNING2:
133    case ASL_WARNING3:
134
135        if (Gbl_WarningLevel < Level)
136        {
137            return;
138        }
139        break;
140
141    default:
142
143        break;
144    }
145
146    if (FieldObject)
147    {
148        AslCommonError (Level, MessageId,
149            FieldObject->Line,
150            FieldObject->Line,
151            FieldObject->ByteOffset,
152            FieldObject->NameColumn,
153            Gbl_Files[ASL_FILE_INPUT].Filename, ExtraMessage);
154    }
155    else
156    {
157        AslCommonError (Level, MessageId, 0,
158            0, 0, 0, 0, ExtraMessage);
159    }
160}
161
162
163/*******************************************************************************
164 *
165 * FUNCTION:    DtFatal
166 *
167 * PARAMETERS:  None
168 *
169 * RETURN:      None
170 *
171 * DESCRIPTION: Dump the error log and abort the compiler. Used for serious
172 *              compile or I/O errors
173 *
174 ******************************************************************************/
175
176void
177DtFatal (
178    UINT16                  MessageId,
179    DT_FIELD                *FieldObject,
180    char                    *ExtraMessage)
181{
182
183    DtError (ASL_ERROR, MessageId, FieldObject, ExtraMessage);
184
185/*
186 * TBD: remove this entire function, DtFatal
187 *
188 * We cannot abort the compiler on error, because we may be compiling a
189 * list of files. We must move on to the next file.
190 */
191#ifdef __OBSOLETE
192    CmCleanupAndExit ();
193    exit (1);
194#endif
195}
196
197
198/******************************************************************************
199 *
200 * FUNCTION:    DtStrtoul64
201 *
202 * PARAMETERS:  String              - Null terminated string
203 *              ReturnInteger       - Where the converted integer is returned
204 *
205 * RETURN:      Status
206 *
207 * DESCRIPTION: Simple conversion of a string hex integer constant to unsigned
208 *              value. Assumes no leading "0x" for the constant.
209 *
210 * Portability note: The reason this function exists is because a 64-bit
211 * sscanf is not available in all environments.
212 *
213 *****************************************************************************/
214
215ACPI_STATUS
216DtStrtoul64 (
217    char                    *String,
218    UINT64                  *ReturnInteger)
219{
220    char                    *ThisChar = String;
221    UINT32                  ThisDigit;
222    UINT64                  ReturnValue = 0;
223    int                     DigitCount = 0;
224
225
226    /* Skip over any white space in the buffer */
227
228    while ((*ThisChar == ' ') || (*ThisChar == '\t'))
229    {
230        ThisChar++;
231    }
232
233    /* Skip leading zeros */
234
235    while ((*ThisChar) == '0')
236    {
237        ThisChar++;
238    }
239
240    /* Convert character-by-character */
241
242    while (*ThisChar)
243    {
244        if (ACPI_IS_DIGIT (*ThisChar))
245        {
246            /* Convert ASCII 0-9 to Decimal value */
247
248            ThisDigit = ((UINT8) *ThisChar) - '0';
249        }
250        else /* Letter */
251        {
252            ThisDigit = (UINT32) ACPI_TOUPPER (*ThisChar);
253            if (!ACPI_IS_XDIGIT ((char) ThisDigit))
254            {
255                /* Not A-F */
256
257                return (AE_BAD_CHARACTER);
258            }
259
260            /* Convert ASCII Hex char (A-F) to value */
261
262            ThisDigit = (ThisDigit - 'A') + 10;
263        }
264
265        /* Insert the 4-bit hex digit */
266
267        ReturnValue <<= 4;
268        ReturnValue += ThisDigit;
269
270        ThisChar++;
271        DigitCount++;
272        if (DigitCount > 16)
273        {
274            /* Value is too large (> 64 bits/8 bytes/16 hex digits) */
275
276            return (AE_LIMIT);
277        }
278    }
279
280    *ReturnInteger = ReturnValue;
281    return (AE_OK);
282}
283
284
285/******************************************************************************
286 *
287 * FUNCTION:    DtGetFieldValue
288 *
289 * PARAMETERS:  Field               - Current field list pointer
290 *
291 * RETURN:      Field value
292 *
293 * DESCRIPTION: Get field value
294 *
295 *****************************************************************************/
296
297char *
298DtGetFieldValue (
299    DT_FIELD                *Field)
300{
301    if (!Field)
302    {
303        return (NULL);
304    }
305
306    return (Field->Value);
307}
308
309
310/******************************************************************************
311 *
312 * FUNCTION:    DtGetFieldType
313 *
314 * PARAMETERS:  Info                - Data table info
315 *
316 * RETURN:      Field type
317 *
318 * DESCRIPTION: Get field type
319 *
320 *****************************************************************************/
321
322UINT8
323DtGetFieldType (
324    ACPI_DMTABLE_INFO       *Info)
325{
326    UINT8                   Type;
327
328
329    /* DT_FLAG means that this is the start of a block of flag bits */
330    /* TBD - we can make these a separate opcode later */
331
332    if (Info->Flags & DT_FLAG)
333    {
334        return (DT_FIELD_TYPE_FLAGS_INTEGER);
335    }
336
337    /* Type is based upon the opcode for this field in the info table */
338
339    switch (Info->Opcode)
340    {
341    case ACPI_DMT_FLAG0:
342    case ACPI_DMT_FLAG1:
343    case ACPI_DMT_FLAG2:
344    case ACPI_DMT_FLAG3:
345    case ACPI_DMT_FLAG4:
346    case ACPI_DMT_FLAG5:
347    case ACPI_DMT_FLAG6:
348    case ACPI_DMT_FLAG7:
349    case ACPI_DMT_FLAGS0:
350    case ACPI_DMT_FLAGS1:
351    case ACPI_DMT_FLAGS2:
352    case ACPI_DMT_FLAGS4:
353
354        Type = DT_FIELD_TYPE_FLAG;
355        break;
356
357    case ACPI_DMT_NAME4:
358    case ACPI_DMT_SIG:
359    case ACPI_DMT_NAME6:
360    case ACPI_DMT_NAME8:
361    case ACPI_DMT_STRING:
362
363        Type = DT_FIELD_TYPE_STRING;
364        break;
365
366    case ACPI_DMT_BUFFER:
367    case ACPI_DMT_RAW_BUFFER:
368    case ACPI_DMT_BUF7:
369    case ACPI_DMT_BUF10:
370    case ACPI_DMT_BUF16:
371    case ACPI_DMT_BUF128:
372    case ACPI_DMT_PCI_PATH:
373
374        Type = DT_FIELD_TYPE_BUFFER;
375        break;
376
377    case ACPI_DMT_GAS:
378    case ACPI_DMT_HESTNTFY:
379
380        Type = DT_FIELD_TYPE_INLINE_SUBTABLE;
381        break;
382
383    case ACPI_DMT_UNICODE:
384
385        Type = DT_FIELD_TYPE_UNICODE;
386        break;
387
388    case ACPI_DMT_UUID:
389
390        Type = DT_FIELD_TYPE_UUID;
391        break;
392
393    case ACPI_DMT_DEVICE_PATH:
394
395        Type = DT_FIELD_TYPE_DEVICE_PATH;
396        break;
397
398    case ACPI_DMT_LABEL:
399
400        Type = DT_FIELD_TYPE_LABEL;
401        break;
402
403    default:
404
405        Type = DT_FIELD_TYPE_INTEGER;
406        break;
407    }
408
409    return (Type);
410}
411
412
413/******************************************************************************
414 *
415 * FUNCTION:    DtGetBufferLength
416 *
417 * PARAMETERS:  Buffer              - List of integers,
418 *                                    for example "10 3A 4F 2E"
419 *
420 * RETURN:      Count of integer
421 *
422 * DESCRIPTION: Get length of bytes needed to store the integers
423 *
424 *****************************************************************************/
425
426UINT32
427DtGetBufferLength (
428    char                    *Buffer)
429{
430    UINT32                  ByteLength = 0;
431
432
433    while (*Buffer)
434    {
435        if (*Buffer == ' ')
436        {
437            ByteLength++;
438
439            while (*Buffer == ' ')
440            {
441                Buffer++;
442            }
443        }
444
445        Buffer++;
446    }
447
448    return (++ByteLength);
449}
450
451
452/******************************************************************************
453 *
454 * FUNCTION:    DtGetFieldLength
455 *
456 * PARAMETERS:  Field               - Current field
457 *              Info                - Data table info
458 *
459 * RETURN:      Field length
460 *
461 * DESCRIPTION: Get length of bytes needed to compile the field
462 *
463 * Note: This function must remain in sync with AcpiDmDumpTable.
464 *
465 *****************************************************************************/
466
467UINT32
468DtGetFieldLength (
469    DT_FIELD                *Field,
470    ACPI_DMTABLE_INFO       *Info)
471{
472    UINT32                  ByteLength = 0;
473    char                    *Value;
474
475
476    /* Length is based upon the opcode for this field in the info table */
477
478    switch (Info->Opcode)
479    {
480    case ACPI_DMT_FLAG0:
481    case ACPI_DMT_FLAG1:
482    case ACPI_DMT_FLAG2:
483    case ACPI_DMT_FLAG3:
484    case ACPI_DMT_FLAG4:
485    case ACPI_DMT_FLAG5:
486    case ACPI_DMT_FLAG6:
487    case ACPI_DMT_FLAG7:
488    case ACPI_DMT_FLAGS0:
489    case ACPI_DMT_FLAGS1:
490    case ACPI_DMT_FLAGS2:
491    case ACPI_DMT_FLAGS4:
492    case ACPI_DMT_LABEL:
493    case ACPI_DMT_EXTRA_TEXT:
494
495        ByteLength = 0;
496        break;
497
498    case ACPI_DMT_UINT8:
499    case ACPI_DMT_CHKSUM:
500    case ACPI_DMT_SPACEID:
501    case ACPI_DMT_ACCWIDTH:
502    case ACPI_DMT_IVRS:
503    case ACPI_DMT_GTDT:
504    case ACPI_DMT_MADT:
505    case ACPI_DMT_PCCT:
506    case ACPI_DMT_PMTT:
507    case ACPI_DMT_SRAT:
508    case ACPI_DMT_ASF:
509    case ACPI_DMT_HESTNTYP:
510    case ACPI_DMT_FADTPM:
511    case ACPI_DMT_EINJACT:
512    case ACPI_DMT_EINJINST:
513    case ACPI_DMT_ERSTACT:
514    case ACPI_DMT_ERSTINST:
515    case ACPI_DMT_DMAR_SCOPE:
516
517        ByteLength = 1;
518        break;
519
520    case ACPI_DMT_UINT16:
521    case ACPI_DMT_DMAR:
522    case ACPI_DMT_HEST:
523    case ACPI_DMT_PCI_PATH:
524
525        ByteLength = 2;
526        break;
527
528    case ACPI_DMT_UINT24:
529
530        ByteLength = 3;
531        break;
532
533    case ACPI_DMT_UINT32:
534    case ACPI_DMT_NAME4:
535    case ACPI_DMT_SIG:
536    case ACPI_DMT_LPIT:
537
538        ByteLength = 4;
539        break;
540
541    case ACPI_DMT_UINT40:
542
543        ByteLength = 5;
544        break;
545
546    case ACPI_DMT_UINT48:
547    case ACPI_DMT_NAME6:
548
549        ByteLength = 6;
550        break;
551
552    case ACPI_DMT_UINT56:
553    case ACPI_DMT_BUF7:
554
555        ByteLength = 7;
556        break;
557
558    case ACPI_DMT_UINT64:
559    case ACPI_DMT_NAME8:
560
561        ByteLength = 8;
562        break;
563
564    case ACPI_DMT_STRING:
565
566        Value = DtGetFieldValue (Field);
567        if (Value)
568        {
569            ByteLength = ACPI_STRLEN (Value) + 1;
570        }
571        else
572        {   /* At this point, this is a fatal error */
573
574            sprintf (MsgBuffer, "Expected \"%s\"", Info->Name);
575            DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer);
576            return (0);
577        }
578        break;
579
580    case ACPI_DMT_GAS:
581
582        ByteLength = sizeof (ACPI_GENERIC_ADDRESS);
583        break;
584
585    case ACPI_DMT_HESTNTFY:
586
587        ByteLength = sizeof (ACPI_HEST_NOTIFY);
588        break;
589
590    case ACPI_DMT_BUFFER:
591    case ACPI_DMT_RAW_BUFFER:
592
593        Value = DtGetFieldValue (Field);
594        if (Value)
595        {
596            ByteLength = DtGetBufferLength (Value);
597        }
598        else
599        {   /* At this point, this is a fatal error */
600
601            sprintf (MsgBuffer, "Expected \"%s\"", Info->Name);
602            DtFatal (ASL_MSG_COMPILER_INTERNAL, NULL, MsgBuffer);
603            return (0);
604        }
605        break;
606
607    case ACPI_DMT_BUF10:
608
609        ByteLength = 10;
610        break;
611
612    case ACPI_DMT_BUF16:
613    case ACPI_DMT_UUID:
614
615        ByteLength = 16;
616        break;
617
618    case ACPI_DMT_BUF128:
619
620        ByteLength = 128;
621        break;
622
623    case ACPI_DMT_UNICODE:
624
625        Value = DtGetFieldValue (Field);
626
627        /* TBD: error if Value is NULL? (as below?) */
628
629        ByteLength = (ACPI_STRLEN (Value) + 1) * sizeof(UINT16);
630        break;
631
632    default:
633
634        DtFatal (ASL_MSG_COMPILER_INTERNAL, Field, "Invalid table opcode");
635        return (0);
636    }
637
638    return (ByteLength);
639}
640
641
642/******************************************************************************
643 *
644 * FUNCTION:    DtSum
645 *
646 * PARAMETERS:  DT_WALK_CALLBACK:
647 *              Subtable            - Subtable
648 *              Context             - Unused
649 *              ReturnValue         - Store the checksum of subtable
650 *
651 * RETURN:      Status
652 *
653 * DESCRIPTION: Get the checksum of subtable
654 *
655 *****************************************************************************/
656
657static void
658DtSum (
659    DT_SUBTABLE             *Subtable,
660    void                    *Context,
661    void                    *ReturnValue)
662{
663    UINT8                   Checksum;
664    UINT8                   *Sum = ReturnValue;
665
666
667    Checksum = AcpiTbChecksum (Subtable->Buffer, Subtable->Length);
668    *Sum = (UINT8) (*Sum + Checksum);
669}
670
671
672/******************************************************************************
673 *
674 * FUNCTION:    DtSetTableChecksum
675 *
676 * PARAMETERS:  ChecksumPointer     - Where to return the checksum
677 *
678 * RETURN:      None
679 *
680 * DESCRIPTION: Set checksum of the whole data table into the checksum field
681 *
682 *****************************************************************************/
683
684void
685DtSetTableChecksum (
686    UINT8                   *ChecksumPointer)
687{
688    UINT8                   Checksum = 0;
689    UINT8                   OldSum;
690
691
692    DtWalkTableTree (Gbl_RootTable, DtSum, NULL, &Checksum);
693
694    OldSum = *ChecksumPointer;
695    Checksum = (UINT8) (Checksum - OldSum);
696
697    /* Compute the final checksum */
698
699    Checksum = (UINT8) (0 - Checksum);
700    *ChecksumPointer = Checksum;
701}
702
703
704/******************************************************************************
705 *
706 * FUNCTION:    DtSetTableLength
707 *
708 * PARAMETERS:  None
709 *
710 * RETURN:      None
711 *
712 * DESCRIPTION: Walk the subtables and set all the length fields
713 *
714 *****************************************************************************/
715
716void
717DtSetTableLength (
718    void)
719{
720    DT_SUBTABLE             *ParentTable;
721    DT_SUBTABLE             *ChildTable;
722
723
724    ParentTable = Gbl_RootTable;
725    ChildTable = NULL;
726
727    if (!ParentTable)
728    {
729        return;
730    }
731
732    DtSetSubtableLength (ParentTable);
733
734    while (1)
735    {
736        ChildTable = DtGetNextSubtable (ParentTable, ChildTable);
737        if (ChildTable)
738        {
739            if (ChildTable->LengthField)
740            {
741                DtSetSubtableLength (ChildTable);
742            }
743
744            if (ChildTable->Child)
745            {
746                ParentTable = ChildTable;
747                ChildTable = NULL;
748            }
749            else
750            {
751                ParentTable->TotalLength += ChildTable->TotalLength;
752                if (ParentTable->LengthField)
753                {
754                    DtSetSubtableLength (ParentTable);
755                }
756            }
757        }
758        else
759        {
760            ChildTable = ParentTable;
761
762            if (ChildTable == Gbl_RootTable)
763            {
764                break;
765            }
766
767            ParentTable = DtGetParentSubtable (ParentTable);
768
769            ParentTable->TotalLength += ChildTable->TotalLength;
770            if (ParentTable->LengthField)
771            {
772                DtSetSubtableLength (ParentTable);
773            }
774        }
775    }
776}
777
778
779/******************************************************************************
780 *
781 * FUNCTION:    DtWalkTableTree
782 *
783 * PARAMETERS:  StartTable          - Subtable in the tree where walking begins
784 *              UserFunction        - Called during the walk
785 *              Context             - Passed to user function
786 *              ReturnValue         - The return value of UserFunction
787 *
788 * RETURN:      None
789 *
790 * DESCRIPTION: Performs a depth-first walk of the subtable tree
791 *
792 *****************************************************************************/
793
794void
795DtWalkTableTree (
796    DT_SUBTABLE             *StartTable,
797    DT_WALK_CALLBACK        UserFunction,
798    void                    *Context,
799    void                    *ReturnValue)
800{
801    DT_SUBTABLE             *ParentTable;
802    DT_SUBTABLE             *ChildTable;
803
804
805    ParentTable = StartTable;
806    ChildTable = NULL;
807
808    if (!ParentTable)
809    {
810        return;
811    }
812
813    UserFunction (ParentTable, Context, ReturnValue);
814
815    while (1)
816    {
817        ChildTable = DtGetNextSubtable (ParentTable, ChildTable);
818        if (ChildTable)
819        {
820            UserFunction (ChildTable, Context, ReturnValue);
821
822            if (ChildTable->Child)
823            {
824                ParentTable = ChildTable;
825                ChildTable = NULL;
826            }
827        }
828        else
829        {
830            ChildTable = ParentTable;
831            if (ChildTable == Gbl_RootTable)
832            {
833                break;
834            }
835
836            ParentTable = DtGetParentSubtable (ParentTable);
837
838            if (ChildTable->Peer == StartTable)
839            {
840                break;
841            }
842        }
843    }
844}
845
846
847/*******************************************************************************
848 *
849 * FUNCTION:    UtSubtableCacheCalloc
850 *
851 * PARAMETERS:  None
852 *
853 * RETURN:      Pointer to the buffer. Aborts on allocation failure
854 *
855 * DESCRIPTION: Allocate a subtable object buffer. Bypass the local
856 *              dynamic memory manager for performance reasons (This has a
857 *              major impact on the speed of the compiler.)
858 *
859 ******************************************************************************/
860
861DT_SUBTABLE *
862UtSubtableCacheCalloc (
863    void)
864{
865    ASL_CACHE_INFO          *Cache;
866
867
868    if (Gbl_SubtableCacheNext >= Gbl_SubtableCacheLast)
869    {
870        /* Allocate a new buffer */
871
872        Cache = UtLocalCalloc (sizeof (Cache->Next) +
873            (sizeof (DT_SUBTABLE) * ASL_SUBTABLE_CACHE_SIZE));
874
875        /* Link new cache buffer to head of list */
876
877        Cache->Next = Gbl_SubtableCacheList;
878        Gbl_SubtableCacheList = Cache;
879
880        /* Setup cache management pointers */
881
882        Gbl_SubtableCacheNext = ACPI_CAST_PTR (DT_SUBTABLE, Cache->Buffer);
883        Gbl_SubtableCacheLast = Gbl_SubtableCacheNext + ASL_SUBTABLE_CACHE_SIZE;
884    }
885
886    Gbl_SubtableCount++;
887    return (Gbl_SubtableCacheNext++);
888}
889
890
891/*******************************************************************************
892 *
893 * FUNCTION:    UtFieldCacheCalloc
894 *
895 * PARAMETERS:  None
896 *
897 * RETURN:      Pointer to the buffer. Aborts on allocation failure
898 *
899 * DESCRIPTION: Allocate a field object buffer. Bypass the local
900 *              dynamic memory manager for performance reasons (This has a
901 *              major impact on the speed of the compiler.)
902 *
903 ******************************************************************************/
904
905DT_FIELD *
906UtFieldCacheCalloc (
907    void)
908{
909    ASL_CACHE_INFO          *Cache;
910
911
912    if (Gbl_FieldCacheNext >= Gbl_FieldCacheLast)
913    {
914        /* Allocate a new buffer */
915
916        Cache = UtLocalCalloc (sizeof (Cache->Next) +
917            (sizeof (DT_FIELD) * ASL_FIELD_CACHE_SIZE));
918
919        /* Link new cache buffer to head of list */
920
921        Cache->Next = Gbl_FieldCacheList;
922        Gbl_FieldCacheList = Cache;
923
924        /* Setup cache management pointers */
925
926        Gbl_FieldCacheNext = ACPI_CAST_PTR (DT_FIELD, Cache->Buffer);
927        Gbl_FieldCacheLast = Gbl_FieldCacheNext + ASL_FIELD_CACHE_SIZE;
928    }
929
930    Gbl_FieldCount++;
931    return (Gbl_FieldCacheNext++);
932}
933
934
935/*******************************************************************************
936 *
937 * FUNCTION:    DtDeleteCaches
938 *
939 * PARAMETERS:  None
940 *
941 * RETURN:      None
942 *
943 * DESCRIPTION: Delete all local cache buffer blocks
944 *
945 ******************************************************************************/
946
947void
948DtDeleteCaches (
949    void)
950{
951    UINT32                  BufferCount;
952    ASL_CACHE_INFO          *Next;
953
954
955    /* Field cache */
956
957    BufferCount = 0;
958    while (Gbl_FieldCacheList)
959    {
960        Next = Gbl_FieldCacheList->Next;
961        ACPI_FREE (Gbl_FieldCacheList);
962        Gbl_FieldCacheList = Next;
963        BufferCount++;
964    }
965
966    DbgPrint (ASL_DEBUG_OUTPUT,
967        "%u Fields, Buffer size: %u fields (%u bytes), %u Buffers\n",
968        Gbl_FieldCount, ASL_FIELD_CACHE_SIZE,
969        (sizeof (DT_FIELD) * ASL_FIELD_CACHE_SIZE), BufferCount);
970
971    Gbl_FieldCount = 0;
972    Gbl_FieldCacheNext = NULL;
973    Gbl_FieldCacheLast = NULL;
974
975    /* Subtable cache */
976
977    BufferCount = 0;
978    while (Gbl_SubtableCacheList)
979    {
980        Next = Gbl_SubtableCacheList->Next;
981        ACPI_FREE (Gbl_SubtableCacheList);
982        Gbl_SubtableCacheList = Next;
983        BufferCount++;
984    }
985
986    DbgPrint (ASL_DEBUG_OUTPUT,
987        "%u Subtables, Buffer size: %u subtables (%u bytes), %u Buffers\n",
988        Gbl_SubtableCount, ASL_SUBTABLE_CACHE_SIZE,
989        (sizeof (DT_SUBTABLE) * ASL_SUBTABLE_CACHE_SIZE), BufferCount);
990
991    Gbl_SubtableCount = 0;
992    Gbl_SubtableCacheNext = NULL;
993    Gbl_SubtableCacheLast = NULL;
994}
995