1bc36eafdSMike Gerdts /******************************************************************************
2bc36eafdSMike Gerdts *
3bc36eafdSMike Gerdts * Module Name: dtexpress.c - Support for integer expressions and labels
4bc36eafdSMike Gerdts *
5bc36eafdSMike Gerdts *****************************************************************************/
6bc36eafdSMike Gerdts
7*35786f68SRobert Mustacchi /******************************************************************************
8*35786f68SRobert Mustacchi *
9*35786f68SRobert Mustacchi * 1. Copyright Notice
10*35786f68SRobert Mustacchi *
11*35786f68SRobert Mustacchi * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
12bc36eafdSMike Gerdts * All rights reserved.
13bc36eafdSMike Gerdts *
14*35786f68SRobert Mustacchi * 2. License
15*35786f68SRobert Mustacchi *
16*35786f68SRobert Mustacchi * 2.1. This is your license from Intel Corp. under its intellectual property
17*35786f68SRobert Mustacchi * rights. You may have additional license terms from the party that provided
18*35786f68SRobert Mustacchi * you this software, covering your right to use that party's intellectual
19*35786f68SRobert Mustacchi * property rights.
20*35786f68SRobert Mustacchi *
21*35786f68SRobert Mustacchi * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22*35786f68SRobert Mustacchi * copy of the source code appearing in this file ("Covered Code") an
23*35786f68SRobert Mustacchi * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24*35786f68SRobert Mustacchi * base code distributed originally by Intel ("Original Intel Code") to copy,
25*35786f68SRobert Mustacchi * make derivatives, distribute, use and display any portion of the Covered
26*35786f68SRobert Mustacchi * Code in any form, with the right to sublicense such rights; and
27*35786f68SRobert Mustacchi *
28*35786f68SRobert Mustacchi * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29*35786f68SRobert Mustacchi * license (with the right to sublicense), under only those claims of Intel
30*35786f68SRobert Mustacchi * patents that are infringed by the Original Intel Code, to make, use, sell,
31*35786f68SRobert Mustacchi * offer to sell, and import the Covered Code and derivative works thereof
32*35786f68SRobert Mustacchi * solely to the minimum extent necessary to exercise the above copyright
33*35786f68SRobert Mustacchi * license, and in no event shall the patent license extend to any additions
34*35786f68SRobert Mustacchi * to or modifications of the Original Intel Code. No other license or right
35*35786f68SRobert Mustacchi * is granted directly or by implication, estoppel or otherwise;
36*35786f68SRobert Mustacchi *
37*35786f68SRobert Mustacchi * The above copyright and patent license is granted only if the following
38*35786f68SRobert Mustacchi * conditions are met:
39*35786f68SRobert Mustacchi *
40*35786f68SRobert Mustacchi * 3. Conditions
41*35786f68SRobert Mustacchi *
42*35786f68SRobert Mustacchi * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
44*35786f68SRobert Mustacchi * Code or modification with rights to further distribute source must include
45*35786f68SRobert Mustacchi * the above Copyright Notice, the above License, this list of Conditions,
46*35786f68SRobert Mustacchi * and the following Disclaimer and Export Compliance provision. In addition,
47*35786f68SRobert Mustacchi * Licensee must cause all Covered Code to which Licensee contributes to
48*35786f68SRobert Mustacchi * contain a file documenting the changes Licensee made to create that Covered
49*35786f68SRobert Mustacchi * Code and the date of any change. Licensee must include in that file the
50*35786f68SRobert Mustacchi * documentation of any changes made by any predecessor Licensee. Licensee
51*35786f68SRobert Mustacchi * must include a prominent statement that the modification is derived,
52*35786f68SRobert Mustacchi * directly or indirectly, from Original Intel Code.
53*35786f68SRobert Mustacchi *
54*35786f68SRobert Mustacchi * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55*35786f68SRobert Mustacchi * Redistribution of source code of any substantial portion of the Covered
56*35786f68SRobert Mustacchi * Code or modification without rights to further distribute source must
57*35786f68SRobert Mustacchi * include the following Disclaimer and Export Compliance provision in the
58*35786f68SRobert Mustacchi * documentation and/or other materials provided with distribution. In
59*35786f68SRobert Mustacchi * addition, Licensee may not authorize further sublicense of source of any
60*35786f68SRobert Mustacchi * portion of the Covered Code, and must include terms to the effect that the
61*35786f68SRobert Mustacchi * license from Licensee to its licensee is limited to the intellectual
62*35786f68SRobert Mustacchi * property embodied in the software Licensee provides to its licensee, and
63*35786f68SRobert Mustacchi * not to intellectual property embodied in modifications its licensee may
64*35786f68SRobert Mustacchi * make.
65*35786f68SRobert Mustacchi *
66*35786f68SRobert Mustacchi * 3.3. Redistribution of Executable. Redistribution in executable form of any
67*35786f68SRobert Mustacchi * substantial portion of the Covered Code or modification must reproduce the
68*35786f68SRobert Mustacchi * above Copyright Notice, and the following Disclaimer and Export Compliance
69*35786f68SRobert Mustacchi * provision in the documentation and/or other materials provided with the
70*35786f68SRobert Mustacchi * distribution.
71*35786f68SRobert Mustacchi *
72*35786f68SRobert Mustacchi * 3.4. Intel retains all right, title, and interest in and to the Original
73*35786f68SRobert Mustacchi * Intel Code.
74*35786f68SRobert Mustacchi *
75*35786f68SRobert Mustacchi * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76*35786f68SRobert Mustacchi * Intel shall be used in advertising or otherwise to promote the sale, use or
77*35786f68SRobert Mustacchi * other dealings in products derived from or relating to the Covered Code
78*35786f68SRobert Mustacchi * without prior written authorization from Intel.
79*35786f68SRobert Mustacchi *
80*35786f68SRobert Mustacchi * 4. Disclaimer and Export Compliance
81*35786f68SRobert Mustacchi *
82*35786f68SRobert Mustacchi * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83*35786f68SRobert Mustacchi * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84*35786f68SRobert Mustacchi * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85*35786f68SRobert Mustacchi * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86*35786f68SRobert Mustacchi * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87*35786f68SRobert Mustacchi * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88*35786f68SRobert Mustacchi * PARTICULAR PURPOSE.
89*35786f68SRobert Mustacchi *
90*35786f68SRobert Mustacchi * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91*35786f68SRobert Mustacchi * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92*35786f68SRobert Mustacchi * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93*35786f68SRobert Mustacchi * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94*35786f68SRobert Mustacchi * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95*35786f68SRobert Mustacchi * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96*35786f68SRobert Mustacchi * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97*35786f68SRobert Mustacchi * LIMITED REMEDY.
98*35786f68SRobert Mustacchi *
99*35786f68SRobert Mustacchi * 4.3. Licensee shall not export, either directly or indirectly, any of this
100*35786f68SRobert Mustacchi * software or system incorporating such software without first obtaining any
101*35786f68SRobert Mustacchi * required license or other approval from the U. S. Department of Commerce or
102*35786f68SRobert Mustacchi * any other agency or department of the United States Government. In the
103*35786f68SRobert Mustacchi * event Licensee exports any such software from the United States or
104*35786f68SRobert Mustacchi * re-exports any such software from a foreign destination, Licensee shall
105*35786f68SRobert Mustacchi * ensure that the distribution and export/re-export of the software is in
106*35786f68SRobert Mustacchi * compliance with all laws, regulations, orders, or other restrictions of the
107*35786f68SRobert Mustacchi * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108*35786f68SRobert Mustacchi * any of its subsidiaries will export/re-export any technical data, process,
109*35786f68SRobert Mustacchi * software, or service, directly or indirectly, to any country for which the
110*35786f68SRobert Mustacchi * United States government or any agency thereof requires an export license,
111*35786f68SRobert Mustacchi * other governmental approval, or letter of assurance, without first obtaining
112*35786f68SRobert Mustacchi * such license, approval or letter.
113*35786f68SRobert Mustacchi *
114*35786f68SRobert Mustacchi *****************************************************************************
115*35786f68SRobert Mustacchi *
116*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
117*35786f68SRobert Mustacchi * following license:
118*35786f68SRobert Mustacchi *
119bc36eafdSMike Gerdts * Redistribution and use in source and binary forms, with or without
120bc36eafdSMike Gerdts * modification, are permitted provided that the following conditions
121bc36eafdSMike Gerdts * are met:
122bc36eafdSMike Gerdts * 1. Redistributions of source code must retain the above copyright
123bc36eafdSMike Gerdts * notice, this list of conditions, and the following disclaimer,
124bc36eafdSMike Gerdts * without modification.
125bc36eafdSMike Gerdts * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126bc36eafdSMike Gerdts * substantially similar to the "NO WARRANTY" disclaimer below
127bc36eafdSMike Gerdts * ("Disclaimer") and any redistribution must be conditioned upon
128bc36eafdSMike Gerdts * including a substantially similar Disclaimer requirement for further
129bc36eafdSMike Gerdts * binary redistribution.
130bc36eafdSMike Gerdts * 3. Neither the names of the above-listed copyright holders nor the names
131bc36eafdSMike Gerdts * of any contributors may be used to endorse or promote products derived
132bc36eafdSMike Gerdts * from this software without specific prior written permission.
133bc36eafdSMike Gerdts *
134bc36eafdSMike Gerdts * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135bc36eafdSMike Gerdts * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136*35786f68SRobert Mustacchi * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137bc36eafdSMike Gerdts * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138*35786f68SRobert Mustacchi * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139*35786f68SRobert Mustacchi * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140*35786f68SRobert Mustacchi * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141*35786f68SRobert Mustacchi * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142*35786f68SRobert Mustacchi * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143*35786f68SRobert Mustacchi * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144*35786f68SRobert Mustacchi * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145*35786f68SRobert Mustacchi *
146*35786f68SRobert Mustacchi * Alternatively, you may choose to be licensed under the terms of the
147*35786f68SRobert Mustacchi * GNU General Public License ("GPL") version 2 as published by the Free
148*35786f68SRobert Mustacchi * Software Foundation.
149*35786f68SRobert Mustacchi *
150*35786f68SRobert Mustacchi *****************************************************************************/
151bc36eafdSMike Gerdts
152bc36eafdSMike Gerdts #include "aslcompiler.h"
153bc36eafdSMike Gerdts #include "dtparser.y.h"
154bc36eafdSMike Gerdts
155bc36eafdSMike Gerdts #define _COMPONENT DT_COMPILER
156bc36eafdSMike Gerdts ACPI_MODULE_NAME ("dtexpress")
157bc36eafdSMike Gerdts
158bc36eafdSMike Gerdts
159bc36eafdSMike Gerdts /* Local prototypes */
160bc36eafdSMike Gerdts
161bc36eafdSMike Gerdts static void
162bc36eafdSMike Gerdts DtInsertLabelField (
163bc36eafdSMike Gerdts DT_FIELD *Field);
164bc36eafdSMike Gerdts
165bc36eafdSMike Gerdts static DT_FIELD *
166bc36eafdSMike Gerdts DtLookupLabel (
167bc36eafdSMike Gerdts char *Name);
168bc36eafdSMike Gerdts
169bc36eafdSMike Gerdts /* Global used for errors during parse and related functions */
170bc36eafdSMike Gerdts
171bc36eafdSMike Gerdts DT_FIELD *Gbl_CurrentField;
172bc36eafdSMike Gerdts
173bc36eafdSMike Gerdts
174bc36eafdSMike Gerdts /******************************************************************************
175bc36eafdSMike Gerdts *
176bc36eafdSMike Gerdts * FUNCTION: DtResolveIntegerExpression
177bc36eafdSMike Gerdts *
178bc36eafdSMike Gerdts * PARAMETERS: Field - Field object with Integer expression
179bc36eafdSMike Gerdts * ReturnValue - Where the integer is returned
180bc36eafdSMike Gerdts *
181bc36eafdSMike Gerdts * RETURN: Status, and the resolved 64-bit integer value
182bc36eafdSMike Gerdts *
183bc36eafdSMike Gerdts * DESCRIPTION: Resolve an integer expression to a single value. Supports
184bc36eafdSMike Gerdts * both integer constants and labels.
185bc36eafdSMike Gerdts *
186bc36eafdSMike Gerdts *****************************************************************************/
187bc36eafdSMike Gerdts
188bc36eafdSMike Gerdts ACPI_STATUS
DtResolveIntegerExpression(DT_FIELD * Field,UINT64 * ReturnValue)189bc36eafdSMike Gerdts DtResolveIntegerExpression (
190bc36eafdSMike Gerdts DT_FIELD *Field,
191bc36eafdSMike Gerdts UINT64 *ReturnValue)
192bc36eafdSMike Gerdts {
193bc36eafdSMike Gerdts UINT64 Result;
194bc36eafdSMike Gerdts
195bc36eafdSMike Gerdts
196bc36eafdSMike Gerdts DbgPrint (ASL_DEBUG_OUTPUT, "Full Integer expression: %s\n",
197bc36eafdSMike Gerdts Field->Value);
198bc36eafdSMike Gerdts
199bc36eafdSMike Gerdts Gbl_CurrentField = Field;
200bc36eafdSMike Gerdts
201bc36eafdSMike Gerdts Result = DtEvaluateExpression (Field->Value);
202bc36eafdSMike Gerdts *ReturnValue = Result;
203bc36eafdSMike Gerdts return (AE_OK);
204bc36eafdSMike Gerdts }
205bc36eafdSMike Gerdts
206bc36eafdSMike Gerdts
207bc36eafdSMike Gerdts /******************************************************************************
208bc36eafdSMike Gerdts *
209bc36eafdSMike Gerdts * FUNCTION: DtDoOperator
210bc36eafdSMike Gerdts *
211bc36eafdSMike Gerdts * PARAMETERS: LeftValue - First 64-bit operand
212*35786f68SRobert Mustacchi * Operator - Parse token for the operator (OP_EXP_*)
213bc36eafdSMike Gerdts * RightValue - Second 64-bit operand
214bc36eafdSMike Gerdts *
215bc36eafdSMike Gerdts * RETURN: 64-bit result of the requested operation
216bc36eafdSMike Gerdts *
217bc36eafdSMike Gerdts * DESCRIPTION: Perform the various 64-bit integer math functions
218bc36eafdSMike Gerdts *
219bc36eafdSMike Gerdts *****************************************************************************/
220bc36eafdSMike Gerdts
221bc36eafdSMike Gerdts UINT64
DtDoOperator(UINT64 LeftValue,UINT32 Operator,UINT64 RightValue)222bc36eafdSMike Gerdts DtDoOperator (
223bc36eafdSMike Gerdts UINT64 LeftValue,
224bc36eafdSMike Gerdts UINT32 Operator,
225bc36eafdSMike Gerdts UINT64 RightValue)
226bc36eafdSMike Gerdts {
227bc36eafdSMike Gerdts UINT64 Result;
228bc36eafdSMike Gerdts
229bc36eafdSMike Gerdts
230bc36eafdSMike Gerdts /* Perform the requested operation */
231bc36eafdSMike Gerdts
232bc36eafdSMike Gerdts switch (Operator)
233bc36eafdSMike Gerdts {
234*35786f68SRobert Mustacchi case OP_EXP_ONES_COMPLIMENT:
235bc36eafdSMike Gerdts
236bc36eafdSMike Gerdts Result = ~RightValue;
237bc36eafdSMike Gerdts break;
238bc36eafdSMike Gerdts
239*35786f68SRobert Mustacchi case OP_EXP_LOGICAL_NOT:
240bc36eafdSMike Gerdts
241bc36eafdSMike Gerdts Result = !RightValue;
242bc36eafdSMike Gerdts break;
243bc36eafdSMike Gerdts
244*35786f68SRobert Mustacchi case OP_EXP_MULTIPLY:
245bc36eafdSMike Gerdts
246bc36eafdSMike Gerdts Result = LeftValue * RightValue;
247bc36eafdSMike Gerdts break;
248bc36eafdSMike Gerdts
249*35786f68SRobert Mustacchi case OP_EXP_DIVIDE:
250bc36eafdSMike Gerdts
251bc36eafdSMike Gerdts if (!RightValue)
252bc36eafdSMike Gerdts {
253bc36eafdSMike Gerdts DtError (ASL_ERROR, ASL_MSG_DIVIDE_BY_ZERO,
254bc36eafdSMike Gerdts Gbl_CurrentField, NULL);
255bc36eafdSMike Gerdts return (0);
256bc36eafdSMike Gerdts }
257bc36eafdSMike Gerdts
258bc36eafdSMike Gerdts Result = LeftValue / RightValue;
259bc36eafdSMike Gerdts break;
260bc36eafdSMike Gerdts
261*35786f68SRobert Mustacchi case OP_EXP_MODULO:
262bc36eafdSMike Gerdts
263bc36eafdSMike Gerdts if (!RightValue)
264bc36eafdSMike Gerdts {
265bc36eafdSMike Gerdts DtError (ASL_ERROR, ASL_MSG_DIVIDE_BY_ZERO,
266bc36eafdSMike Gerdts Gbl_CurrentField, NULL);
267bc36eafdSMike Gerdts return (0);
268bc36eafdSMike Gerdts }
269bc36eafdSMike Gerdts
270bc36eafdSMike Gerdts Result = LeftValue % RightValue;
271bc36eafdSMike Gerdts break;
272bc36eafdSMike Gerdts
273*35786f68SRobert Mustacchi case OP_EXP_ADD:
274bc36eafdSMike Gerdts Result = LeftValue + RightValue;
275bc36eafdSMike Gerdts break;
276bc36eafdSMike Gerdts
277*35786f68SRobert Mustacchi case OP_EXP_SUBTRACT:
278bc36eafdSMike Gerdts
279bc36eafdSMike Gerdts Result = LeftValue - RightValue;
280bc36eafdSMike Gerdts break;
281bc36eafdSMike Gerdts
282*35786f68SRobert Mustacchi case OP_EXP_SHIFT_RIGHT:
283bc36eafdSMike Gerdts
284bc36eafdSMike Gerdts Result = LeftValue >> RightValue;
285bc36eafdSMike Gerdts break;
286bc36eafdSMike Gerdts
287*35786f68SRobert Mustacchi case OP_EXP_SHIFT_LEFT:
288bc36eafdSMike Gerdts
289bc36eafdSMike Gerdts Result = LeftValue << RightValue;
290bc36eafdSMike Gerdts break;
291bc36eafdSMike Gerdts
292*35786f68SRobert Mustacchi case OP_EXP_LESS:
293bc36eafdSMike Gerdts
294bc36eafdSMike Gerdts Result = LeftValue < RightValue;
295bc36eafdSMike Gerdts break;
296bc36eafdSMike Gerdts
297*35786f68SRobert Mustacchi case OP_EXP_GREATER:
298bc36eafdSMike Gerdts
299bc36eafdSMike Gerdts Result = LeftValue > RightValue;
300bc36eafdSMike Gerdts break;
301bc36eafdSMike Gerdts
302*35786f68SRobert Mustacchi case OP_EXP_LESS_EQUAL:
303bc36eafdSMike Gerdts
304bc36eafdSMike Gerdts Result = LeftValue <= RightValue;
305bc36eafdSMike Gerdts break;
306bc36eafdSMike Gerdts
307*35786f68SRobert Mustacchi case OP_EXP_GREATER_EQUAL:
308bc36eafdSMike Gerdts
309bc36eafdSMike Gerdts Result = LeftValue >= RightValue;
310bc36eafdSMike Gerdts break;
311bc36eafdSMike Gerdts
312*35786f68SRobert Mustacchi case OP_EXP_EQUAL:
313bc36eafdSMike Gerdts
314bc36eafdSMike Gerdts Result = LeftValue == RightValue;
315bc36eafdSMike Gerdts break;
316bc36eafdSMike Gerdts
317*35786f68SRobert Mustacchi case OP_EXP_NOT_EQUAL:
318bc36eafdSMike Gerdts
319bc36eafdSMike Gerdts Result = LeftValue != RightValue;
320bc36eafdSMike Gerdts break;
321bc36eafdSMike Gerdts
322*35786f68SRobert Mustacchi case OP_EXP_AND:
323bc36eafdSMike Gerdts
324bc36eafdSMike Gerdts Result = LeftValue & RightValue;
325bc36eafdSMike Gerdts break;
326bc36eafdSMike Gerdts
327*35786f68SRobert Mustacchi case OP_EXP_XOR:
328bc36eafdSMike Gerdts
329bc36eafdSMike Gerdts Result = LeftValue ^ RightValue;
330bc36eafdSMike Gerdts break;
331bc36eafdSMike Gerdts
332*35786f68SRobert Mustacchi case OP_EXP_OR:
333bc36eafdSMike Gerdts
334bc36eafdSMike Gerdts Result = LeftValue | RightValue;
335bc36eafdSMike Gerdts break;
336bc36eafdSMike Gerdts
337*35786f68SRobert Mustacchi case OP_EXP_LOGICAL_AND:
338bc36eafdSMike Gerdts
339bc36eafdSMike Gerdts Result = LeftValue && RightValue;
340bc36eafdSMike Gerdts break;
341bc36eafdSMike Gerdts
342*35786f68SRobert Mustacchi case OP_EXP_LOGICAL_OR:
343bc36eafdSMike Gerdts
344bc36eafdSMike Gerdts Result = LeftValue || RightValue;
345bc36eafdSMike Gerdts break;
346bc36eafdSMike Gerdts
347bc36eafdSMike Gerdts default:
348bc36eafdSMike Gerdts
349bc36eafdSMike Gerdts /* Unknown operator */
350bc36eafdSMike Gerdts
351bc36eafdSMike Gerdts DtFatal (ASL_MSG_INVALID_EXPRESSION,
352bc36eafdSMike Gerdts Gbl_CurrentField, NULL);
353bc36eafdSMike Gerdts return (0);
354bc36eafdSMike Gerdts }
355bc36eafdSMike Gerdts
356bc36eafdSMike Gerdts DbgPrint (ASL_DEBUG_OUTPUT,
357bc36eafdSMike Gerdts "IntegerEval: (%8.8X%8.8X %s %8.8X%8.8X) = %8.8X%8.8X\n",
358bc36eafdSMike Gerdts ACPI_FORMAT_UINT64 (LeftValue),
359bc36eafdSMike Gerdts DtGetOpName (Operator),
360bc36eafdSMike Gerdts ACPI_FORMAT_UINT64 (RightValue),
361bc36eafdSMike Gerdts ACPI_FORMAT_UINT64 (Result));
362bc36eafdSMike Gerdts
363bc36eafdSMike Gerdts return (Result);
364bc36eafdSMike Gerdts }
365bc36eafdSMike Gerdts
366bc36eafdSMike Gerdts
367bc36eafdSMike Gerdts /******************************************************************************
368bc36eafdSMike Gerdts *
369bc36eafdSMike Gerdts * FUNCTION: DtResolveLabel
370bc36eafdSMike Gerdts *
371bc36eafdSMike Gerdts * PARAMETERS: LabelString - Contains the label
372bc36eafdSMike Gerdts *
373bc36eafdSMike Gerdts * RETURN: Table offset associated with the label
374bc36eafdSMike Gerdts *
375bc36eafdSMike Gerdts * DESCRIPTION: Lookup a lable and return its value.
376bc36eafdSMike Gerdts *
377bc36eafdSMike Gerdts *****************************************************************************/
378bc36eafdSMike Gerdts
379bc36eafdSMike Gerdts UINT64
DtResolveLabel(char * LabelString)380bc36eafdSMike Gerdts DtResolveLabel (
381bc36eafdSMike Gerdts char *LabelString)
382bc36eafdSMike Gerdts {
383bc36eafdSMike Gerdts DT_FIELD *LabelField;
384bc36eafdSMike Gerdts
385bc36eafdSMike Gerdts
386bc36eafdSMike Gerdts DbgPrint (ASL_DEBUG_OUTPUT, "Resolve Label: %s\n", LabelString);
387bc36eafdSMike Gerdts
388bc36eafdSMike Gerdts /* Resolve a label reference to an integer (table offset) */
389bc36eafdSMike Gerdts
390bc36eafdSMike Gerdts if (*LabelString != '$')
391bc36eafdSMike Gerdts {
392bc36eafdSMike Gerdts return (0);
393bc36eafdSMike Gerdts }
394bc36eafdSMike Gerdts
395bc36eafdSMike Gerdts LabelField = DtLookupLabel (LabelString);
396bc36eafdSMike Gerdts if (!LabelField)
397bc36eafdSMike Gerdts {
398bc36eafdSMike Gerdts DtError (ASL_ERROR, ASL_MSG_UNKNOWN_LABEL,
399bc36eafdSMike Gerdts Gbl_CurrentField, LabelString);
400bc36eafdSMike Gerdts return (0);
401bc36eafdSMike Gerdts }
402bc36eafdSMike Gerdts
403bc36eafdSMike Gerdts /* All we need from the label is the offset in the table */
404bc36eafdSMike Gerdts
405bc36eafdSMike Gerdts DbgPrint (ASL_DEBUG_OUTPUT, "Resolved Label: 0x%8.8X\n",
406bc36eafdSMike Gerdts LabelField->TableOffset);
407bc36eafdSMike Gerdts
408bc36eafdSMike Gerdts return (LabelField->TableOffset);
409bc36eafdSMike Gerdts }
410bc36eafdSMike Gerdts
411bc36eafdSMike Gerdts
412bc36eafdSMike Gerdts /******************************************************************************
413bc36eafdSMike Gerdts *
414bc36eafdSMike Gerdts * FUNCTION: DtDetectAllLabels
415bc36eafdSMike Gerdts *
416bc36eafdSMike Gerdts * PARAMETERS: FieldList - Field object at start of generic list
417bc36eafdSMike Gerdts *
418bc36eafdSMike Gerdts * RETURN: None
419bc36eafdSMike Gerdts *
420bc36eafdSMike Gerdts * DESCRIPTION: Detect all labels in a list of "generic" opcodes (such as
421bc36eafdSMike Gerdts * a UEFI table.) and insert them into the global label list.
422bc36eafdSMike Gerdts *
423bc36eafdSMike Gerdts *****************************************************************************/
424bc36eafdSMike Gerdts
425bc36eafdSMike Gerdts void
DtDetectAllLabels(DT_FIELD * FieldList)426bc36eafdSMike Gerdts DtDetectAllLabels (
427bc36eafdSMike Gerdts DT_FIELD *FieldList)
428bc36eafdSMike Gerdts {
429bc36eafdSMike Gerdts ACPI_DMTABLE_INFO *Info;
430bc36eafdSMike Gerdts DT_FIELD *GenericField;
431bc36eafdSMike Gerdts UINT32 TableOffset;
432bc36eafdSMike Gerdts
433bc36eafdSMike Gerdts
434bc36eafdSMike Gerdts TableOffset = Gbl_CurrentTableOffset;
435bc36eafdSMike Gerdts GenericField = FieldList;
436bc36eafdSMike Gerdts
437bc36eafdSMike Gerdts /*
438bc36eafdSMike Gerdts * Process all "Label:" fields within the parse tree. We need
439bc36eafdSMike Gerdts * to know the offsets for all labels before we can compile
440bc36eafdSMike Gerdts * the parse tree in order to handle forward references. Traverse
441bc36eafdSMike Gerdts * tree and get/set all field lengths of all operators in order to
442bc36eafdSMike Gerdts * determine the label offsets.
443bc36eafdSMike Gerdts */
444bc36eafdSMike Gerdts while (GenericField)
445bc36eafdSMike Gerdts {
446bc36eafdSMike Gerdts Info = DtGetGenericTableInfo (GenericField->Name);
447bc36eafdSMike Gerdts if (Info)
448bc36eafdSMike Gerdts {
449bc36eafdSMike Gerdts /* Maintain table offsets */
450bc36eafdSMike Gerdts
451bc36eafdSMike Gerdts GenericField->TableOffset = TableOffset;
452bc36eafdSMike Gerdts TableOffset += DtGetFieldLength (GenericField, Info);
453bc36eafdSMike Gerdts
454bc36eafdSMike Gerdts /* Insert all labels in the global label list */
455bc36eafdSMike Gerdts
456bc36eafdSMike Gerdts if (Info->Opcode == ACPI_DMT_LABEL)
457bc36eafdSMike Gerdts {
458bc36eafdSMike Gerdts DtInsertLabelField (GenericField);
459bc36eafdSMike Gerdts }
460bc36eafdSMike Gerdts }
461bc36eafdSMike Gerdts
462bc36eafdSMike Gerdts GenericField = GenericField->Next;
463bc36eafdSMike Gerdts }
464bc36eafdSMike Gerdts }
465bc36eafdSMike Gerdts
466bc36eafdSMike Gerdts
467bc36eafdSMike Gerdts /******************************************************************************
468bc36eafdSMike Gerdts *
469bc36eafdSMike Gerdts * FUNCTION: DtInsertLabelField
470bc36eafdSMike Gerdts *
471bc36eafdSMike Gerdts * PARAMETERS: Field - Field object with Label to be inserted
472bc36eafdSMike Gerdts *
473bc36eafdSMike Gerdts * RETURN: None
474bc36eafdSMike Gerdts *
475bc36eafdSMike Gerdts * DESCRIPTION: Insert a label field into the global label list
476bc36eafdSMike Gerdts *
477bc36eafdSMike Gerdts *****************************************************************************/
478bc36eafdSMike Gerdts
479bc36eafdSMike Gerdts static void
DtInsertLabelField(DT_FIELD * Field)480bc36eafdSMike Gerdts DtInsertLabelField (
481bc36eafdSMike Gerdts DT_FIELD *Field)
482bc36eafdSMike Gerdts {
483bc36eafdSMike Gerdts
484bc36eafdSMike Gerdts DbgPrint (ASL_DEBUG_OUTPUT,
485bc36eafdSMike Gerdts "DtInsertLabelField: Found Label : %s at output table offset %X\n",
486bc36eafdSMike Gerdts Field->Value, Field->TableOffset);
487bc36eafdSMike Gerdts
488bc36eafdSMike Gerdts Field->NextLabel = Gbl_LabelList;
489bc36eafdSMike Gerdts Gbl_LabelList = Field;
490bc36eafdSMike Gerdts }
491bc36eafdSMike Gerdts
492bc36eafdSMike Gerdts
493bc36eafdSMike Gerdts /******************************************************************************
494bc36eafdSMike Gerdts *
495bc36eafdSMike Gerdts * FUNCTION: DtLookupLabel
496bc36eafdSMike Gerdts *
497bc36eafdSMike Gerdts * PARAMETERS: Name - Label to be resolved
498bc36eafdSMike Gerdts *
499bc36eafdSMike Gerdts * RETURN: Field object associated with the label
500bc36eafdSMike Gerdts *
501bc36eafdSMike Gerdts * DESCRIPTION: Lookup a label in the global label list. Used during the
502bc36eafdSMike Gerdts * resolution of integer expressions.
503bc36eafdSMike Gerdts *
504bc36eafdSMike Gerdts *****************************************************************************/
505bc36eafdSMike Gerdts
506bc36eafdSMike Gerdts static DT_FIELD *
DtLookupLabel(char * Name)507bc36eafdSMike Gerdts DtLookupLabel (
508bc36eafdSMike Gerdts char *Name)
509bc36eafdSMike Gerdts {
510bc36eafdSMike Gerdts DT_FIELD *LabelField;
511bc36eafdSMike Gerdts
512bc36eafdSMike Gerdts
513bc36eafdSMike Gerdts /* Skip a leading $ */
514bc36eafdSMike Gerdts
515bc36eafdSMike Gerdts if (*Name == '$')
516bc36eafdSMike Gerdts {
517bc36eafdSMike Gerdts Name++;
518bc36eafdSMike Gerdts }
519bc36eafdSMike Gerdts
520bc36eafdSMike Gerdts /* Search global list */
521bc36eafdSMike Gerdts
522bc36eafdSMike Gerdts LabelField = Gbl_LabelList;
523bc36eafdSMike Gerdts while (LabelField)
524bc36eafdSMike Gerdts {
525bc36eafdSMike Gerdts if (!strcmp (Name, LabelField->Value))
526bc36eafdSMike Gerdts {
527bc36eafdSMike Gerdts return (LabelField);
528bc36eafdSMike Gerdts }
529bc36eafdSMike Gerdts
530bc36eafdSMike Gerdts LabelField = LabelField->NextLabel;
531bc36eafdSMike Gerdts }
532bc36eafdSMike Gerdts
533bc36eafdSMike Gerdts return (NULL);
534bc36eafdSMike Gerdts }
535