nsparse.c revision 1.1.1.17 1 1.1 jruoho /******************************************************************************
2 1.1 jruoho *
3 1.1 jruoho * Module Name: nsparse - namespace interface to AML parser
4 1.1 jruoho *
5 1.1 jruoho *****************************************************************************/
6 1.1 jruoho
7 1.1.1.17 christos /******************************************************************************
8 1.1.1.17 christos *
9 1.1.1.17 christos * 1. Copyright Notice
10 1.1.1.17 christos *
11 1.1.1.17 christos * Some or all of this work - Copyright (c) 1999 - 2024, Intel Corp.
12 1.1 jruoho * All rights reserved.
13 1.1 jruoho *
14 1.1.1.17 christos * 2. License
15 1.1.1.17 christos *
16 1.1.1.17 christos * 2.1. This is your license from Intel Corp. under its intellectual property
17 1.1.1.17 christos * rights. You may have additional license terms from the party that provided
18 1.1.1.17 christos * you this software, covering your right to use that party's intellectual
19 1.1.1.17 christos * property rights.
20 1.1.1.17 christos *
21 1.1.1.17 christos * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 1.1.1.17 christos * copy of the source code appearing in this file ("Covered Code") an
23 1.1.1.17 christos * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 1.1.1.17 christos * base code distributed originally by Intel ("Original Intel Code") to copy,
25 1.1.1.17 christos * make derivatives, distribute, use and display any portion of the Covered
26 1.1.1.17 christos * Code in any form, with the right to sublicense such rights; and
27 1.1.1.17 christos *
28 1.1.1.17 christos * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 1.1.1.17 christos * license (with the right to sublicense), under only those claims of Intel
30 1.1.1.17 christos * patents that are infringed by the Original Intel Code, to make, use, sell,
31 1.1.1.17 christos * offer to sell, and import the Covered Code and derivative works thereof
32 1.1.1.17 christos * solely to the minimum extent necessary to exercise the above copyright
33 1.1.1.17 christos * license, and in no event shall the patent license extend to any additions
34 1.1.1.17 christos * to or modifications of the Original Intel Code. No other license or right
35 1.1.1.17 christos * is granted directly or by implication, estoppel or otherwise;
36 1.1.1.17 christos *
37 1.1.1.17 christos * The above copyright and patent license is granted only if the following
38 1.1.1.17 christos * conditions are met:
39 1.1.1.17 christos *
40 1.1.1.17 christos * 3. Conditions
41 1.1.1.17 christos *
42 1.1.1.17 christos * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 1.1.1.17 christos * Redistribution of source code of any substantial portion of the Covered
44 1.1.1.17 christos * Code or modification with rights to further distribute source must include
45 1.1.1.17 christos * the above Copyright Notice, the above License, this list of Conditions,
46 1.1.1.17 christos * and the following Disclaimer and Export Compliance provision. In addition,
47 1.1.1.17 christos * Licensee must cause all Covered Code to which Licensee contributes to
48 1.1.1.17 christos * contain a file documenting the changes Licensee made to create that Covered
49 1.1.1.17 christos * Code and the date of any change. Licensee must include in that file the
50 1.1.1.17 christos * documentation of any changes made by any predecessor Licensee. Licensee
51 1.1.1.17 christos * must include a prominent statement that the modification is derived,
52 1.1.1.17 christos * directly or indirectly, from Original Intel Code.
53 1.1.1.17 christos *
54 1.1.1.17 christos * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 1.1.1.17 christos * Redistribution of source code of any substantial portion of the Covered
56 1.1.1.17 christos * Code or modification without rights to further distribute source must
57 1.1.1.17 christos * include the following Disclaimer and Export Compliance provision in the
58 1.1.1.17 christos * documentation and/or other materials provided with distribution. In
59 1.1.1.17 christos * addition, Licensee may not authorize further sublicense of source of any
60 1.1.1.17 christos * portion of the Covered Code, and must include terms to the effect that the
61 1.1.1.17 christos * license from Licensee to its licensee is limited to the intellectual
62 1.1.1.17 christos * property embodied in the software Licensee provides to its licensee, and
63 1.1.1.17 christos * not to intellectual property embodied in modifications its licensee may
64 1.1.1.17 christos * make.
65 1.1.1.17 christos *
66 1.1.1.17 christos * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 1.1.1.17 christos * substantial portion of the Covered Code or modification must reproduce the
68 1.1.1.17 christos * above Copyright Notice, and the following Disclaimer and Export Compliance
69 1.1.1.17 christos * provision in the documentation and/or other materials provided with the
70 1.1.1.17 christos * distribution.
71 1.1.1.17 christos *
72 1.1.1.17 christos * 3.4. Intel retains all right, title, and interest in and to the Original
73 1.1.1.17 christos * Intel Code.
74 1.1.1.17 christos *
75 1.1.1.17 christos * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 1.1.1.17 christos * Intel shall be used in advertising or otherwise to promote the sale, use or
77 1.1.1.17 christos * other dealings in products derived from or relating to the Covered Code
78 1.1.1.17 christos * without prior written authorization from Intel.
79 1.1.1.17 christos *
80 1.1.1.17 christos * 4. Disclaimer and Export Compliance
81 1.1.1.17 christos *
82 1.1.1.17 christos * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 1.1.1.17 christos * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 1.1.1.17 christos * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 1.1.1.17 christos * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 1.1.1.17 christos * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 1.1.1.17 christos * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88 1.1.1.17 christos * PARTICULAR PURPOSE.
89 1.1.1.17 christos *
90 1.1.1.17 christos * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 1.1.1.17 christos * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 1.1.1.17 christos * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 1.1.1.17 christos * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 1.1.1.17 christos * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 1.1.1.17 christos * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 1.1.1.17 christos * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97 1.1.1.17 christos * LIMITED REMEDY.
98 1.1.1.17 christos *
99 1.1.1.17 christos * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 1.1.1.17 christos * software or system incorporating such software without first obtaining any
101 1.1.1.17 christos * required license or other approval from the U. S. Department of Commerce or
102 1.1.1.17 christos * any other agency or department of the United States Government. In the
103 1.1.1.17 christos * event Licensee exports any such software from the United States or
104 1.1.1.17 christos * re-exports any such software from a foreign destination, Licensee shall
105 1.1.1.17 christos * ensure that the distribution and export/re-export of the software is in
106 1.1.1.17 christos * compliance with all laws, regulations, orders, or other restrictions of the
107 1.1.1.17 christos * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 1.1.1.17 christos * any of its subsidiaries will export/re-export any technical data, process,
109 1.1.1.17 christos * software, or service, directly or indirectly, to any country for which the
110 1.1.1.17 christos * United States government or any agency thereof requires an export license,
111 1.1.1.17 christos * other governmental approval, or letter of assurance, without first obtaining
112 1.1.1.17 christos * such license, approval or letter.
113 1.1.1.17 christos *
114 1.1.1.17 christos *****************************************************************************
115 1.1.1.17 christos *
116 1.1.1.17 christos * Alternatively, you may choose to be licensed under the terms of the
117 1.1.1.17 christos * following license:
118 1.1.1.17 christos *
119 1.1.1.2 jruoho * Redistribution and use in source and binary forms, with or without
120 1.1.1.2 jruoho * modification, are permitted provided that the following conditions
121 1.1.1.2 jruoho * are met:
122 1.1.1.2 jruoho * 1. Redistributions of source code must retain the above copyright
123 1.1.1.2 jruoho * notice, this list of conditions, and the following disclaimer,
124 1.1.1.2 jruoho * without modification.
125 1.1.1.2 jruoho * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126 1.1.1.2 jruoho * substantially similar to the "NO WARRANTY" disclaimer below
127 1.1.1.2 jruoho * ("Disclaimer") and any redistribution must be conditioned upon
128 1.1.1.2 jruoho * including a substantially similar Disclaimer requirement for further
129 1.1.1.2 jruoho * binary redistribution.
130 1.1.1.2 jruoho * 3. Neither the names of the above-listed copyright holders nor the names
131 1.1.1.2 jruoho * of any contributors may be used to endorse or promote products derived
132 1.1.1.2 jruoho * from this software without specific prior written permission.
133 1.1.1.2 jruoho *
134 1.1.1.2 jruoho * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135 1.1.1.2 jruoho * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136 1.1.1.14 christos * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137 1.1.1.2 jruoho * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138 1.1.1.17 christos * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139 1.1.1.17 christos * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140 1.1.1.17 christos * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141 1.1.1.17 christos * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142 1.1.1.17 christos * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143 1.1.1.17 christos * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144 1.1.1.17 christos * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145 1.1.1.17 christos *
146 1.1.1.17 christos * Alternatively, you may choose to be licensed under the terms of the
147 1.1.1.17 christos * GNU General Public License ("GPL") version 2 as published by the Free
148 1.1.1.17 christos * Software Foundation.
149 1.1.1.17 christos *
150 1.1.1.17 christos *****************************************************************************/
151 1.1 jruoho
152 1.1 jruoho #include "acpi.h"
153 1.1 jruoho #include "accommon.h"
154 1.1 jruoho #include "acnamesp.h"
155 1.1 jruoho #include "acparser.h"
156 1.1 jruoho #include "acdispat.h"
157 1.1 jruoho #include "actables.h"
158 1.1.1.8 christos #include "acinterp.h"
159 1.1 jruoho
160 1.1 jruoho
161 1.1 jruoho #define _COMPONENT ACPI_NAMESPACE
162 1.1 jruoho ACPI_MODULE_NAME ("nsparse")
163 1.1 jruoho
164 1.1 jruoho
165 1.1 jruoho /*******************************************************************************
166 1.1 jruoho *
167 1.1.1.8 christos * FUNCTION: NsExecuteTable
168 1.1.1.8 christos *
169 1.1.1.8 christos * PARAMETERS: TableDesc - An ACPI table descriptor for table to parse
170 1.1.1.8 christos * StartNode - Where to enter the table into the namespace
171 1.1.1.8 christos *
172 1.1.1.8 christos * RETURN: Status
173 1.1.1.8 christos *
174 1.1.1.10 christos * DESCRIPTION: Load ACPI/AML table by executing the entire table as a single
175 1.1.1.10 christos * large control method.
176 1.1.1.10 christos *
177 1.1.1.10 christos * NOTE: The point of this is to execute any module-level code in-place
178 1.1.1.10 christos * as the table is parsed. Some AML code depends on this behavior.
179 1.1.1.10 christos *
180 1.1.1.10 christos * It is a run-time option at this time, but will eventually become
181 1.1.1.10 christos * the default.
182 1.1.1.10 christos *
183 1.1.1.10 christos * Note: This causes the table to only have a single-pass parse.
184 1.1.1.10 christos * However, this is compatible with other ACPI implementations.
185 1.1.1.8 christos *
186 1.1.1.8 christos ******************************************************************************/
187 1.1.1.8 christos
188 1.1.1.8 christos ACPI_STATUS
189 1.1.1.8 christos AcpiNsExecuteTable (
190 1.1.1.8 christos UINT32 TableIndex,
191 1.1.1.8 christos ACPI_NAMESPACE_NODE *StartNode)
192 1.1.1.8 christos {
193 1.1.1.8 christos ACPI_STATUS Status;
194 1.1.1.8 christos ACPI_TABLE_HEADER *Table;
195 1.1.1.8 christos ACPI_OWNER_ID OwnerId;
196 1.1.1.8 christos ACPI_EVALUATE_INFO *Info = NULL;
197 1.1.1.8 christos UINT32 AmlLength;
198 1.1.1.8 christos UINT8 *AmlStart;
199 1.1.1.8 christos ACPI_OPERAND_OBJECT *MethodObj = NULL;
200 1.1.1.8 christos
201 1.1.1.8 christos
202 1.1.1.8 christos ACPI_FUNCTION_TRACE (NsExecuteTable);
203 1.1.1.8 christos
204 1.1.1.8 christos
205 1.1.1.8 christos Status = AcpiGetTableByIndex (TableIndex, &Table);
206 1.1.1.8 christos if (ACPI_FAILURE (Status))
207 1.1.1.8 christos {
208 1.1.1.8 christos return_ACPI_STATUS (Status);
209 1.1.1.8 christos }
210 1.1.1.8 christos
211 1.1.1.8 christos /* Table must consist of at least a complete header */
212 1.1.1.8 christos
213 1.1.1.8 christos if (Table->Length < sizeof (ACPI_TABLE_HEADER))
214 1.1.1.8 christos {
215 1.1.1.8 christos return_ACPI_STATUS (AE_BAD_HEADER);
216 1.1.1.8 christos }
217 1.1.1.8 christos
218 1.1.1.8 christos AmlStart = (UINT8 *) Table + sizeof (ACPI_TABLE_HEADER);
219 1.1.1.8 christos AmlLength = Table->Length - sizeof (ACPI_TABLE_HEADER);
220 1.1.1.8 christos
221 1.1.1.8 christos Status = AcpiTbGetOwnerId (TableIndex, &OwnerId);
222 1.1.1.8 christos if (ACPI_FAILURE (Status))
223 1.1.1.8 christos {
224 1.1.1.8 christos return_ACPI_STATUS (Status);
225 1.1.1.8 christos }
226 1.1.1.8 christos
227 1.1.1.8 christos /* Create, initialize, and link a new temporary method object */
228 1.1.1.8 christos
229 1.1.1.8 christos MethodObj = AcpiUtCreateInternalObject (ACPI_TYPE_METHOD);
230 1.1.1.8 christos if (!MethodObj)
231 1.1.1.8 christos {
232 1.1.1.8 christos return_ACPI_STATUS (AE_NO_MEMORY);
233 1.1.1.8 christos }
234 1.1.1.8 christos
235 1.1.1.8 christos /* Allocate the evaluation information block */
236 1.1.1.8 christos
237 1.1.1.8 christos Info = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
238 1.1.1.8 christos if (!Info)
239 1.1.1.8 christos {
240 1.1.1.8 christos Status = AE_NO_MEMORY;
241 1.1.1.8 christos goto Cleanup;
242 1.1.1.8 christos }
243 1.1.1.8 christos
244 1.1.1.10 christos ACPI_DEBUG_PRINT_RAW ((ACPI_DB_PARSE,
245 1.1.1.10 christos "%s: Create table pseudo-method for [%4.4s] @%p, method %p\n",
246 1.1.1.10 christos ACPI_GET_FUNCTION_NAME, Table->Signature, Table, MethodObj));
247 1.1.1.8 christos
248 1.1.1.8 christos MethodObj->Method.AmlStart = AmlStart;
249 1.1.1.8 christos MethodObj->Method.AmlLength = AmlLength;
250 1.1.1.8 christos MethodObj->Method.OwnerId = OwnerId;
251 1.1.1.8 christos MethodObj->Method.InfoFlags |= ACPI_METHOD_MODULE_LEVEL;
252 1.1.1.8 christos
253 1.1.1.8 christos Info->PassNumber = ACPI_IMODE_EXECUTE;
254 1.1.1.8 christos Info->Node = StartNode;
255 1.1.1.8 christos Info->ObjDesc = MethodObj;
256 1.1.1.8 christos Info->NodeFlags = Info->Node->Flags;
257 1.1.1.8 christos Info->FullPathname = AcpiNsGetNormalizedPathname (Info->Node, TRUE);
258 1.1.1.8 christos if (!Info->FullPathname)
259 1.1.1.8 christos {
260 1.1.1.8 christos Status = AE_NO_MEMORY;
261 1.1.1.8 christos goto Cleanup;
262 1.1.1.8 christos }
263 1.1.1.8 christos
264 1.1.1.11 christos /* Optional object evaluation log */
265 1.1.1.11 christos
266 1.1.1.11 christos ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EVALUATION,
267 1.1.1.11 christos "%-26s: (Definition Block level)\n", "Module-level evaluation"));
268 1.1.1.11 christos
269 1.1.1.8 christos Status = AcpiPsExecuteTable (Info);
270 1.1.1.8 christos
271 1.1.1.11 christos /* Optional object evaluation log */
272 1.1.1.11 christos
273 1.1.1.11 christos ACPI_DEBUG_PRINT_RAW ((ACPI_DB_EVALUATION,
274 1.1.1.11 christos "%-26s: (Definition Block level)\n", "Module-level complete"));
275 1.1.1.11 christos
276 1.1.1.8 christos Cleanup:
277 1.1.1.8 christos if (Info)
278 1.1.1.8 christos {
279 1.1.1.8 christos ACPI_FREE (Info->FullPathname);
280 1.1.1.8 christos Info->FullPathname = NULL;
281 1.1.1.8 christos }
282 1.1.1.8 christos ACPI_FREE (Info);
283 1.1.1.8 christos AcpiUtRemoveReference (MethodObj);
284 1.1.1.8 christos return_ACPI_STATUS (Status);
285 1.1.1.8 christos }
286 1.1.1.8 christos
287 1.1.1.8 christos
288 1.1.1.8 christos /*******************************************************************************
289 1.1.1.8 christos *
290 1.1 jruoho * FUNCTION: NsOneCompleteParse
291 1.1 jruoho *
292 1.1 jruoho * PARAMETERS: PassNumber - 1 or 2
293 1.1 jruoho * TableDesc - The table to be parsed.
294 1.1 jruoho *
295 1.1 jruoho * RETURN: Status
296 1.1 jruoho *
297 1.1 jruoho * DESCRIPTION: Perform one complete parse of an ACPI/AML table.
298 1.1 jruoho *
299 1.1 jruoho ******************************************************************************/
300 1.1 jruoho
301 1.1 jruoho ACPI_STATUS
302 1.1 jruoho AcpiNsOneCompleteParse (
303 1.1 jruoho UINT32 PassNumber,
304 1.1 jruoho UINT32 TableIndex,
305 1.1 jruoho ACPI_NAMESPACE_NODE *StartNode)
306 1.1 jruoho {
307 1.1 jruoho ACPI_PARSE_OBJECT *ParseRoot;
308 1.1 jruoho ACPI_STATUS Status;
309 1.1 jruoho UINT32 AmlLength;
310 1.1 jruoho UINT8 *AmlStart;
311 1.1 jruoho ACPI_WALK_STATE *WalkState;
312 1.1 jruoho ACPI_TABLE_HEADER *Table;
313 1.1 jruoho ACPI_OWNER_ID OwnerId;
314 1.1 jruoho
315 1.1 jruoho
316 1.1 jruoho ACPI_FUNCTION_TRACE (NsOneCompleteParse);
317 1.1 jruoho
318 1.1 jruoho
319 1.1.1.6 christos Status = AcpiGetTableByIndex (TableIndex, &Table);
320 1.1.1.6 christos if (ACPI_FAILURE (Status))
321 1.1.1.6 christos {
322 1.1.1.6 christos return_ACPI_STATUS (Status);
323 1.1.1.6 christos }
324 1.1.1.6 christos
325 1.1.1.6 christos /* Table must consist of at least a complete header */
326 1.1.1.6 christos
327 1.1.1.6 christos if (Table->Length < sizeof (ACPI_TABLE_HEADER))
328 1.1.1.6 christos {
329 1.1.1.6 christos return_ACPI_STATUS (AE_BAD_HEADER);
330 1.1.1.6 christos }
331 1.1.1.6 christos
332 1.1.1.6 christos AmlStart = (UINT8 *) Table + sizeof (ACPI_TABLE_HEADER);
333 1.1.1.6 christos AmlLength = Table->Length - sizeof (ACPI_TABLE_HEADER);
334 1.1.1.6 christos
335 1.1 jruoho Status = AcpiTbGetOwnerId (TableIndex, &OwnerId);
336 1.1 jruoho if (ACPI_FAILURE (Status))
337 1.1 jruoho {
338 1.1 jruoho return_ACPI_STATUS (Status);
339 1.1 jruoho }
340 1.1 jruoho
341 1.1 jruoho /* Create and init a Root Node */
342 1.1 jruoho
343 1.1.1.6 christos ParseRoot = AcpiPsCreateScopeOp (AmlStart);
344 1.1 jruoho if (!ParseRoot)
345 1.1 jruoho {
346 1.1 jruoho return_ACPI_STATUS (AE_NO_MEMORY);
347 1.1 jruoho }
348 1.1 jruoho
349 1.1 jruoho /* Create and initialize a new walk state */
350 1.1 jruoho
351 1.1 jruoho WalkState = AcpiDsCreateWalkState (OwnerId, NULL, NULL, NULL);
352 1.1 jruoho if (!WalkState)
353 1.1 jruoho {
354 1.1 jruoho AcpiPsFreeOp (ParseRoot);
355 1.1 jruoho return_ACPI_STATUS (AE_NO_MEMORY);
356 1.1 jruoho }
357 1.1 jruoho
358 1.1.1.6 christos Status = AcpiDsInitAmlWalk (WalkState, ParseRoot, NULL,
359 1.1.1.7 christos AmlStart, AmlLength, NULL, (UINT8) PassNumber);
360 1.1 jruoho if (ACPI_FAILURE (Status))
361 1.1 jruoho {
362 1.1 jruoho AcpiDsDeleteWalkState (WalkState);
363 1.1.1.6 christos goto Cleanup;
364 1.1 jruoho }
365 1.1 jruoho
366 1.1.1.6 christos /* Found OSDT table, enable the namespace override feature */
367 1.1 jruoho
368 1.1.1.12 christos if (ACPI_COMPARE_NAMESEG (Table->Signature, ACPI_SIG_OSDT) &&
369 1.1.1.6 christos PassNumber == ACPI_IMODE_LOAD_PASS1)
370 1.1 jruoho {
371 1.1.1.6 christos WalkState->NamespaceOverride = TRUE;
372 1.1 jruoho }
373 1.1 jruoho
374 1.1 jruoho /* StartNode is the default location to load the table */
375 1.1 jruoho
376 1.1 jruoho if (StartNode && StartNode != AcpiGbl_RootNode)
377 1.1 jruoho {
378 1.1.1.7 christos Status = AcpiDsScopeStackPush (
379 1.1.1.7 christos StartNode, ACPI_TYPE_METHOD, WalkState);
380 1.1 jruoho if (ACPI_FAILURE (Status))
381 1.1 jruoho {
382 1.1 jruoho AcpiDsDeleteWalkState (WalkState);
383 1.1 jruoho goto Cleanup;
384 1.1 jruoho }
385 1.1 jruoho }
386 1.1 jruoho
387 1.1 jruoho /* Parse the AML */
388 1.1 jruoho
389 1.1.1.7 christos ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
390 1.1.1.7 christos "*PARSE* pass %u parse\n", PassNumber));
391 1.1.1.8 christos AcpiExEnterInterpreter ();
392 1.1 jruoho Status = AcpiPsParseAml (WalkState);
393 1.1.1.8 christos AcpiExExitInterpreter ();
394 1.1 jruoho
395 1.1 jruoho Cleanup:
396 1.1 jruoho AcpiPsDeleteParseTree (ParseRoot);
397 1.1 jruoho return_ACPI_STATUS (Status);
398 1.1 jruoho }
399 1.1 jruoho
400 1.1 jruoho
401 1.1 jruoho /*******************************************************************************
402 1.1 jruoho *
403 1.1 jruoho * FUNCTION: AcpiNsParseTable
404 1.1 jruoho *
405 1.1 jruoho * PARAMETERS: TableDesc - An ACPI table descriptor for table to parse
406 1.1 jruoho * StartNode - Where to enter the table into the namespace
407 1.1 jruoho *
408 1.1 jruoho * RETURN: Status
409 1.1 jruoho *
410 1.1 jruoho * DESCRIPTION: Parse AML within an ACPI table and return a tree of ops
411 1.1 jruoho *
412 1.1 jruoho ******************************************************************************/
413 1.1 jruoho
414 1.1 jruoho ACPI_STATUS
415 1.1 jruoho AcpiNsParseTable (
416 1.1 jruoho UINT32 TableIndex,
417 1.1 jruoho ACPI_NAMESPACE_NODE *StartNode)
418 1.1 jruoho {
419 1.1 jruoho ACPI_STATUS Status;
420 1.1 jruoho
421 1.1 jruoho
422 1.1 jruoho ACPI_FUNCTION_TRACE (NsParseTable);
423 1.1 jruoho
424 1.1 jruoho
425 1.1.1.12 christos /*
426 1.1.1.12 christos * Executes the AML table as one large control method.
427 1.1.1.12 christos * The point of this is to execute any module-level code in-place
428 1.1.1.12 christos * as the table is parsed. Some AML code depends on this behavior.
429 1.1.1.12 christos *
430 1.1.1.12 christos * Note: This causes the table to only have a single-pass parse.
431 1.1.1.12 christos * However, this is compatible with other ACPI implementations.
432 1.1.1.12 christos */
433 1.1.1.12 christos ACPI_DEBUG_PRINT_RAW ((ACPI_DB_PARSE,
434 1.1.1.12 christos "%s: **** Start table execution pass\n", ACPI_GET_FUNCTION_NAME));
435 1.1.1.8 christos
436 1.1.1.12 christos Status = AcpiNsExecuteTable (TableIndex, StartNode);
437 1.1 jruoho
438 1.1 jruoho return_ACPI_STATUS (Status);
439 1.1 jruoho }
440