xref: /illumos-gate/usr/src/cmd/acpi/iasl/dtexpress.c (revision 35786f68)
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