1 /******************************************************************************
3 * Module Name: utxfinit - External interfaces for ACPICA initialization
5 *****************************************************************************/
7 /******************************************************************************
11 * Some or all of this work - Copyright (c) 1999 - 2019, Intel Corp.
12 * All rights reserved.
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
37 * The above copyright and patent license is granted only if the following
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
72 * 3.4. Intel retains all right, title, and interest in and to the Original
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
80 * 4. Disclaimer and Export Compliance
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
114 *****************************************************************************
116 * Alternatively, you may choose to be licensed under the terms of the
119 * Redistribution and use in source and binary forms, with or without
120 * modification, are permitted provided that the following conditions
122 * 1. Redistributions of source code must retain the above copyright
123 * notice, this list of conditions, and the following disclaimer,
124 * without modification.
125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126 * substantially similar to the "NO WARRANTY" disclaimer below
127 * ("Disclaimer") and any redistribution must be conditioned upon
128 * including a substantially similar Disclaimer requirement for further
129 * binary redistribution.
130 * 3. Neither the names of the above-listed copyright holders nor the names
131 * of any contributors may be used to endorse or promote products derived
132 * from this software without specific prior written permission.
134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
146 * Alternatively, you may choose to be licensed under the terms of the
147 * GNU General Public License ("GPL") version 2 as published by the Free
148 * Software Foundation.
150 *****************************************************************************/
152 #define EXPORT_ACPI_INTERFACES
154 #include <contrib/dev/acpica/include/acpi.h>
155 #include <contrib/dev/acpica/include/accommon.h>
156 #include <contrib/dev/acpica/include/acevents.h>
157 #include <contrib/dev/acpica/include/acnamesp.h>
158 #include <contrib/dev/acpica/include/acdebug.h>
159 #include <contrib/dev/acpica/include/actables.h>
161 #define _COMPONENT ACPI_UTILITIES
162 ACPI_MODULE_NAME ("utxfinit")
164 /* For AcpiExec only */
166 AeDoObjectOverrides (
170 /*******************************************************************************
172 * FUNCTION: AcpiInitializeSubsystem
178 * DESCRIPTION: Initializes all global variables. This is the first function
179 * called, so any early initialization belongs here.
181 ******************************************************************************/
183 ACPI_STATUS ACPI_INIT_FUNCTION
184 AcpiInitializeSubsystem (
190 ACPI_FUNCTION_TRACE (AcpiInitializeSubsystem);
193 AcpiGbl_StartupFlags = ACPI_SUBSYSTEM_INITIALIZE;
194 ACPI_DEBUG_EXEC (AcpiUtInitStackPtrTrace ());
196 /* Initialize the OS-Dependent layer */
198 Status = AcpiOsInitialize ();
199 if (ACPI_FAILURE (Status))
201 ACPI_EXCEPTION ((AE_INFO, Status, "During OSL initialization"));
202 return_ACPI_STATUS (Status);
205 /* Initialize all globals used by the subsystem */
207 Status = AcpiUtInitGlobals ();
208 if (ACPI_FAILURE (Status))
210 ACPI_EXCEPTION ((AE_INFO, Status, "During initialization of globals"));
211 return_ACPI_STATUS (Status);
214 /* Create the default mutex objects */
216 Status = AcpiUtMutexInitialize ();
217 if (ACPI_FAILURE (Status))
219 ACPI_EXCEPTION ((AE_INFO, Status, "During Global Mutex creation"));
220 return_ACPI_STATUS (Status);
224 * Initialize the namespace manager and
225 * the root of the namespace tree
227 Status = AcpiNsRootInitialize ();
228 if (ACPI_FAILURE (Status))
230 ACPI_EXCEPTION ((AE_INFO, Status, "During Namespace initialization"));
231 return_ACPI_STATUS (Status);
234 /* Initialize the global OSI interfaces list with the static names */
236 Status = AcpiUtInitializeInterfaces ();
237 if (ACPI_FAILURE (Status))
239 ACPI_EXCEPTION ((AE_INFO, Status, "During OSI interfaces initialization"));
240 return_ACPI_STATUS (Status);
243 return_ACPI_STATUS (AE_OK);
246 ACPI_EXPORT_SYMBOL_INIT (AcpiInitializeSubsystem)
249 /*******************************************************************************
251 * FUNCTION: AcpiEnableSubsystem
253 * PARAMETERS: Flags - Init/enable Options
257 * DESCRIPTION: Completes the subsystem initialization including hardware.
258 * Puts system into ACPI mode if it isn't already.
260 ******************************************************************************/
262 ACPI_STATUS ACPI_INIT_FUNCTION
263 AcpiEnableSubsystem (
266 ACPI_STATUS Status = AE_OK;
269 ACPI_FUNCTION_TRACE (AcpiEnableSubsystem);
273 * The early initialization phase is complete. The namespace is loaded,
274 * and we can now support address spaces other than Memory, I/O, and
277 AcpiGbl_EarlyInitialization = FALSE;
279 #if (!ACPI_REDUCED_HARDWARE)
281 /* Enable ACPI mode */
283 if (!(Flags & ACPI_NO_ACPI_ENABLE))
285 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Going into ACPI mode\n"));
287 AcpiGbl_OriginalMode = AcpiHwGetMode();
289 Status = AcpiEnable ();
290 if (ACPI_FAILURE (Status))
292 ACPI_WARNING ((AE_INFO, "AcpiEnable failed"));
293 return_ACPI_STATUS (Status);
298 * Obtain a permanent mapping for the FACS. This is required for the
299 * Global Lock and the Firmware Waking Vector
301 if (!(Flags & ACPI_NO_FACS_INIT))
303 Status = AcpiTbInitializeFacs ();
304 if (ACPI_FAILURE (Status))
306 ACPI_WARNING ((AE_INFO, "Could not map the FACS table"));
307 return_ACPI_STATUS (Status);
312 * Initialize ACPI Event handling (Fixed and General Purpose)
314 * Note1: We must have the hardware and events initialized before we can
315 * execute any control methods safely. Any control method can require
316 * ACPI hardware support, so the hardware must be fully initialized before
317 * any method execution!
319 * Note2: Fixed events are initialized and enabled here. GPEs are
320 * initialized, but cannot be enabled until after the hardware is
321 * completely initialized (SCI and GlobalLock activated) and the various
322 * initialization control methods are run (_REG, _STA, _INI) on the
325 if (!(Flags & ACPI_NO_EVENT_INIT))
327 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
328 "[Init] Initializing ACPI events\n"));
330 Status = AcpiEvInitializeEvents ();
331 if (ACPI_FAILURE (Status))
333 return_ACPI_STATUS (Status);
338 * Install the SCI handler and Global Lock handler. This completes the
339 * hardware initialization.
341 if (!(Flags & ACPI_NO_HANDLER_INIT))
343 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
344 "[Init] Installing SCI/GL handlers\n"));
346 Status = AcpiEvInstallXruptHandlers ();
347 if (ACPI_FAILURE (Status))
349 return_ACPI_STATUS (Status);
353 #endif /* !ACPI_REDUCED_HARDWARE */
355 return_ACPI_STATUS (Status);
358 ACPI_EXPORT_SYMBOL_INIT (AcpiEnableSubsystem)
361 /*******************************************************************************
363 * FUNCTION: AcpiInitializeObjects
365 * PARAMETERS: Flags - Init/enable Options
369 * DESCRIPTION: Completes namespace initialization by initializing device
370 * objects and executing AML code for Regions, buffers, etc.
372 ******************************************************************************/
374 ACPI_STATUS ACPI_INIT_FUNCTION
375 AcpiInitializeObjects (
378 ACPI_STATUS Status = AE_OK;
381 ACPI_FUNCTION_TRACE (AcpiInitializeObjects);
384 #ifdef ACPI_OBSOLETE_BEHAVIOR
386 * 05/2019: Removed, initialization now happens at both object
387 * creation and table load time
391 * Initialize the objects that remain uninitialized. This
392 * runs the executable AML that may be part of the
393 * declaration of these objects: OperationRegions, BufferFields,
394 * BankFields, Buffers, and Packages.
396 if (!(Flags & ACPI_NO_OBJECT_INIT))
398 Status = AcpiNsInitializeObjects ();
399 if (ACPI_FAILURE (Status))
401 return_ACPI_STATUS (Status);
407 * Initialize all device/region objects in the namespace. This runs
408 * the device _STA and _INI methods and region _REG methods.
410 if (!(Flags & (ACPI_NO_DEVICE_INIT | ACPI_NO_ADDRESS_SPACE_INIT)))
412 Status = AcpiNsInitializeDevices (Flags);
413 if (ACPI_FAILURE (Status))
415 return_ACPI_STATUS (Status);
420 * Empty the caches (delete the cached objects) on the assumption that
421 * the table load filled them up more than they will be at runtime --
422 * thus wasting non-paged memory.
424 Status = AcpiPurgeCachedObjects ();
426 AcpiGbl_StartupFlags |= ACPI_INITIALIZED_OK;
427 return_ACPI_STATUS (Status);
430 ACPI_EXPORT_SYMBOL_INIT (AcpiInitializeObjects)