17c478bd9Sstevel@tonic-gate /******************************************************************************
27c478bd9Sstevel@tonic-gate *
37c478bd9Sstevel@tonic-gate * Module Name: pswalk - Parser routines to walk parsed op tree(s)
47c478bd9Sstevel@tonic-gate *
57c478bd9Sstevel@tonic-gate *****************************************************************************/
67c478bd9Sstevel@tonic-gate
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.
127c478bd9Sstevel@tonic-gate * All rights reserved.
137c478bd9Sstevel@tonic-gate *
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 *
11926f3cdf0SGordon Ross * Redistribution and use in source and binary forms, with or without
12026f3cdf0SGordon Ross * modification, are permitted provided that the following conditions
12126f3cdf0SGordon Ross * are met:
12226f3cdf0SGordon Ross * 1. Redistributions of source code must retain the above copyright
12326f3cdf0SGordon Ross * notice, this list of conditions, and the following disclaimer,
12426f3cdf0SGordon Ross * without modification.
12526f3cdf0SGordon Ross * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12626f3cdf0SGordon Ross * substantially similar to the "NO WARRANTY" disclaimer below
12726f3cdf0SGordon Ross * ("Disclaimer") and any redistribution must be conditioned upon
12826f3cdf0SGordon Ross * including a substantially similar Disclaimer requirement for further
12926f3cdf0SGordon Ross * binary redistribution.
13026f3cdf0SGordon Ross * 3. Neither the names of the above-listed copyright holders nor the names
13126f3cdf0SGordon Ross * of any contributors may be used to endorse or promote products derived
13226f3cdf0SGordon Ross * from this software without specific prior written permission.
13326f3cdf0SGordon Ross *
13426f3cdf0SGordon Ross * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
13526f3cdf0SGordon Ross * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136*35786f68SRobert Mustacchi * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
13726f3cdf0SGordon Ross * 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 *****************************************************************************/
1517c478bd9Sstevel@tonic-gate
1527c478bd9Sstevel@tonic-gate #include "acpi.h"
153aa2aa9a6SDana Myers #include "accommon.h"
1547c478bd9Sstevel@tonic-gate #include "acparser.h"
1557c478bd9Sstevel@tonic-gate
1567c478bd9Sstevel@tonic-gate #define _COMPONENT ACPI_PARSER
1577c478bd9Sstevel@tonic-gate ACPI_MODULE_NAME ("pswalk")
1587c478bd9Sstevel@tonic-gate
1597c478bd9Sstevel@tonic-gate
1607c478bd9Sstevel@tonic-gate /*******************************************************************************
1617c478bd9Sstevel@tonic-gate *
1627c478bd9Sstevel@tonic-gate * FUNCTION: AcpiPsDeleteParseTree
1637c478bd9Sstevel@tonic-gate *
1647c478bd9Sstevel@tonic-gate * PARAMETERS: SubtreeRoot - Root of tree (or subtree) to delete
1657c478bd9Sstevel@tonic-gate *
1667c478bd9Sstevel@tonic-gate * RETURN: None
1677c478bd9Sstevel@tonic-gate *
1687c478bd9Sstevel@tonic-gate * DESCRIPTION: Delete a portion of or an entire parse tree.
1697c478bd9Sstevel@tonic-gate *
1707c478bd9Sstevel@tonic-gate ******************************************************************************/
1717c478bd9Sstevel@tonic-gate
172*35786f68SRobert Mustacchi #include "amlcode.h"
173*35786f68SRobert Mustacchi
1747c478bd9Sstevel@tonic-gate void
AcpiPsDeleteParseTree(ACPI_PARSE_OBJECT * SubtreeRoot)1757c478bd9Sstevel@tonic-gate AcpiPsDeleteParseTree (
1767c478bd9Sstevel@tonic-gate ACPI_PARSE_OBJECT *SubtreeRoot)
1777c478bd9Sstevel@tonic-gate {
1787c478bd9Sstevel@tonic-gate ACPI_PARSE_OBJECT *Op = SubtreeRoot;
1797c478bd9Sstevel@tonic-gate ACPI_PARSE_OBJECT *Next = NULL;
1807c478bd9Sstevel@tonic-gate ACPI_PARSE_OBJECT *Parent = NULL;
181*35786f68SRobert Mustacchi UINT32 Level = 0;
1827c478bd9Sstevel@tonic-gate
1837c478bd9Sstevel@tonic-gate
18427f7c583Smyers ACPI_FUNCTION_TRACE_PTR (PsDeleteParseTree, SubtreeRoot);
1857c478bd9Sstevel@tonic-gate
186*35786f68SRobert Mustacchi ACPI_DEBUG_PRINT ((ACPI_DB_PARSE_TREES,
187*35786f68SRobert Mustacchi " root %p\n", SubtreeRoot));
1887c478bd9Sstevel@tonic-gate
1897c478bd9Sstevel@tonic-gate /* Visit all nodes in the subtree */
1907c478bd9Sstevel@tonic-gate
1917c478bd9Sstevel@tonic-gate while (Op)
1927c478bd9Sstevel@tonic-gate {
1937c478bd9Sstevel@tonic-gate if (Op != Parent)
1947c478bd9Sstevel@tonic-gate {
195*35786f68SRobert Mustacchi /* This is the descending case */
196*35786f68SRobert Mustacchi
197*35786f68SRobert Mustacchi if (ACPI_IS_DEBUG_ENABLED (ACPI_LV_PARSE_TREES, _COMPONENT))
198*35786f68SRobert Mustacchi {
199*35786f68SRobert Mustacchi /* This debug option will print the entire parse tree */
200*35786f68SRobert Mustacchi
201*35786f68SRobert Mustacchi AcpiOsPrintf (" %*.s%s %p", (Level * 4), " ",
202*35786f68SRobert Mustacchi AcpiPsGetOpcodeName (Op->Common.AmlOpcode), Op);
203*35786f68SRobert Mustacchi
204*35786f68SRobert Mustacchi if (Op->Named.AmlOpcode == AML_INT_NAMEPATH_OP)
205*35786f68SRobert Mustacchi {
206*35786f68SRobert Mustacchi AcpiOsPrintf (" %4.4s", Op->Common.Value.String);
207*35786f68SRobert Mustacchi }
208*35786f68SRobert Mustacchi if (Op->Named.AmlOpcode == AML_STRING_OP)
209*35786f68SRobert Mustacchi {
210*35786f68SRobert Mustacchi AcpiOsPrintf (" %s", Op->Common.Value.String);
211*35786f68SRobert Mustacchi }
212*35786f68SRobert Mustacchi AcpiOsPrintf ("\n");
213*35786f68SRobert Mustacchi }
214*35786f68SRobert Mustacchi
2157c478bd9Sstevel@tonic-gate /* Look for an argument or child of the current op */
2167c478bd9Sstevel@tonic-gate
2177c478bd9Sstevel@tonic-gate Next = AcpiPsGetArg (Op, 0);
2187c478bd9Sstevel@tonic-gate if (Next)
2197c478bd9Sstevel@tonic-gate {
2207c478bd9Sstevel@tonic-gate /* Still going downward in tree (Op is not completed yet) */
2217c478bd9Sstevel@tonic-gate
2227c478bd9Sstevel@tonic-gate Op = Next;
223*35786f68SRobert Mustacchi Level++;
2247c478bd9Sstevel@tonic-gate continue;
2257c478bd9Sstevel@tonic-gate }
2267c478bd9Sstevel@tonic-gate }
2277c478bd9Sstevel@tonic-gate
2287c478bd9Sstevel@tonic-gate /* No more children, this Op is complete. */
2297c478bd9Sstevel@tonic-gate
2307c478bd9Sstevel@tonic-gate Next = Op->Common.Next;
2317c478bd9Sstevel@tonic-gate Parent = Op->Common.Parent;
2327c478bd9Sstevel@tonic-gate
2337c478bd9Sstevel@tonic-gate AcpiPsFreeOp (Op);
2347c478bd9Sstevel@tonic-gate
2357c478bd9Sstevel@tonic-gate /* If we are back to the starting point, the walk is complete. */
2367c478bd9Sstevel@tonic-gate
2377c478bd9Sstevel@tonic-gate if (Op == SubtreeRoot)
2387c478bd9Sstevel@tonic-gate {
2397c478bd9Sstevel@tonic-gate return_VOID;
2407c478bd9Sstevel@tonic-gate }
2417b1019a6SJerry Jelinek
2427c478bd9Sstevel@tonic-gate if (Next)
2437c478bd9Sstevel@tonic-gate {
2447c478bd9Sstevel@tonic-gate Op = Next;
2457c478bd9Sstevel@tonic-gate }
2467c478bd9Sstevel@tonic-gate else
2477c478bd9Sstevel@tonic-gate {
248*35786f68SRobert Mustacchi Level--;
2497c478bd9Sstevel@tonic-gate Op = Parent;
2507c478bd9Sstevel@tonic-gate }
2517c478bd9Sstevel@tonic-gate }
2527c478bd9Sstevel@tonic-gate
2537c478bd9Sstevel@tonic-gate return_VOID;
2547c478bd9Sstevel@tonic-gate }
255