1 /******************************************************************************
2 *
3 * Module Name: utinit - Common ACPI subsystem initialization
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2016, Intel Corp.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 */
43
44 #include "acpi.h"
45 #include "accommon.h"
46 #include "acnamesp.h"
47 #include "acevents.h"
48 #include "actables.h"
49
50 #define _COMPONENT ACPI_UTILITIES
51 ACPI_MODULE_NAME ("utinit")
52
53 /* Local prototypes */
54
55 static void AcpiUtTerminate (
56 void);
57
58 #if (!ACPI_REDUCED_HARDWARE)
59
60 static void
61 AcpiUtFreeGpeLists (
62 void);
63
64 #else
65
66 #define AcpiUtFreeGpeLists()
67 #endif /* !ACPI_REDUCED_HARDWARE */
68
69
70 #if (!ACPI_REDUCED_HARDWARE)
71 /******************************************************************************
72 *
73 * FUNCTION: AcpiUtFreeGpeLists
74 *
75 * PARAMETERS: none
76 *
77 * RETURN: none
78 *
79 * DESCRIPTION: Free global GPE lists
80 *
81 ******************************************************************************/
82
83 static void
AcpiUtFreeGpeLists(void)84 AcpiUtFreeGpeLists (
85 void)
86 {
87 ACPI_GPE_BLOCK_INFO *GpeBlock;
88 ACPI_GPE_BLOCK_INFO *NextGpeBlock;
89 ACPI_GPE_XRUPT_INFO *GpeXruptInfo;
90 ACPI_GPE_XRUPT_INFO *NextGpeXruptInfo;
91
92
93 /* Free global GPE blocks and related info structures */
94
95 GpeXruptInfo = AcpiGbl_GpeXruptListHead;
96 while (GpeXruptInfo)
97 {
98 GpeBlock = GpeXruptInfo->GpeBlockListHead;
99 while (GpeBlock)
100 {
101 NextGpeBlock = GpeBlock->Next;
102 ACPI_FREE (GpeBlock->EventInfo);
103 ACPI_FREE (GpeBlock->RegisterInfo);
104 ACPI_FREE (GpeBlock);
105
106 GpeBlock = NextGpeBlock;
107 }
108 NextGpeXruptInfo = GpeXruptInfo->Next;
109 ACPI_FREE (GpeXruptInfo);
110 GpeXruptInfo = NextGpeXruptInfo;
111 }
112 }
113 #endif /* !ACPI_REDUCED_HARDWARE */
114
115
116 /*******************************************************************************
117 *
118 * FUNCTION: AcpiUtInitGlobals
119 *
120 * PARAMETERS: None
121 *
122 * RETURN: Status
123 *
124 * DESCRIPTION: Initialize ACPICA globals. All globals that require specific
125 * initialization should be initialized here. This allows for
126 * a warm restart.
127 *
128 ******************************************************************************/
129
130 ACPI_STATUS
AcpiUtInitGlobals(void)131 AcpiUtInitGlobals (
132 void)
133 {
134 ACPI_STATUS Status;
135 UINT32 i;
136
137
138 ACPI_FUNCTION_TRACE (UtInitGlobals);
139
140
141 /* Create all memory caches */
142
143 Status = AcpiUtCreateCaches ();
144 if (ACPI_FAILURE (Status))
145 {
146 return_ACPI_STATUS (Status);
147 }
148
149 /* Address Range lists */
150
151 for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++)
152 {
153 AcpiGbl_AddressRangeList[i] = NULL;
154 }
155
156 /* Mutex locked flags */
157
158 for (i = 0; i < ACPI_NUM_MUTEX; i++)
159 {
160 AcpiGbl_MutexInfo[i].Mutex = NULL;
161 AcpiGbl_MutexInfo[i].ThreadId = ACPI_MUTEX_NOT_ACQUIRED;
162 AcpiGbl_MutexInfo[i].UseCount = 0;
163 }
164
165 for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++)
166 {
167 AcpiGbl_OwnerIdMask[i] = 0;
168 }
169
170 /* Last OwnerID is never valid */
171
172 AcpiGbl_OwnerIdMask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
173
174 /* Event counters */
175
176 AcpiMethodCount = 0;
177 AcpiSciCount = 0;
178 AcpiGpeCount = 0;
179
180 for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
181 {
182 AcpiFixedEventCount[i] = 0;
183 }
184
185 #if (!ACPI_REDUCED_HARDWARE)
186
187 /* GPE/SCI support */
188
189 AcpiGbl_AllGpesInitialized = FALSE;
190 AcpiGbl_GpeXruptListHead = NULL;
191 AcpiGbl_GpeFadtBlocks[0] = NULL;
192 AcpiGbl_GpeFadtBlocks[1] = NULL;
193 AcpiCurrentGpeCount = 0;
194
195 AcpiGbl_GlobalEventHandler = NULL;
196 AcpiGbl_SciHandlerList = NULL;
197
198 #endif /* !ACPI_REDUCED_HARDWARE */
199
200 /* Global handlers */
201
202 AcpiGbl_GlobalNotify[0].Handler = NULL;
203 AcpiGbl_GlobalNotify[1].Handler = NULL;
204 AcpiGbl_ExceptionHandler = NULL;
205 AcpiGbl_InitHandler = NULL;
206 AcpiGbl_TableHandler = NULL;
207 AcpiGbl_InterfaceHandler = NULL;
208
209 /* Global Lock support */
210
211 AcpiGbl_GlobalLockSemaphore = NULL;
212 AcpiGbl_GlobalLockMutex = NULL;
213 AcpiGbl_GlobalLockAcquired = FALSE;
214 AcpiGbl_GlobalLockHandle = 0;
215 AcpiGbl_GlobalLockPresent = FALSE;
216
217 /* Miscellaneous variables */
218
219 AcpiGbl_DSDT = NULL;
220 AcpiGbl_CmSingleStep = FALSE;
221 AcpiGbl_Shutdown = FALSE;
222 AcpiGbl_NsLookupCount = 0;
223 AcpiGbl_PsFindCount = 0;
224 AcpiGbl_AcpiHardwarePresent = TRUE;
225 AcpiGbl_LastOwnerIdIndex = 0;
226 AcpiGbl_NextOwnerIdOffset = 0;
227 AcpiGbl_DebuggerConfiguration = DEBUGGER_THREADING;
228 AcpiGbl_OsiMutex = NULL;
229 AcpiGbl_MaxLoopIterations = 0xFFFF;
230
231 /* Hardware oriented */
232
233 AcpiGbl_EventsInitialized = FALSE;
234 AcpiGbl_SystemAwakeAndRunning = TRUE;
235
236 /* Namespace */
237
238 AcpiGbl_ModuleCodeList = NULL;
239 AcpiGbl_RootNode = NULL;
240 AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME;
241 AcpiGbl_RootNodeStruct.DescriptorType = ACPI_DESC_TYPE_NAMED;
242 AcpiGbl_RootNodeStruct.Type = ACPI_TYPE_DEVICE;
243 AcpiGbl_RootNodeStruct.Parent = NULL;
244 AcpiGbl_RootNodeStruct.Child = NULL;
245 AcpiGbl_RootNodeStruct.Peer = NULL;
246 AcpiGbl_RootNodeStruct.Object = NULL;
247
248
249 #ifdef ACPI_DISASSEMBLER
250 AcpiGbl_ExternalList = NULL;
251 AcpiGbl_NumExternalMethods = 0;
252 AcpiGbl_ResolvedExternalMethods = 0;
253 #endif
254
255 #ifdef ACPI_DEBUG_OUTPUT
256 AcpiGbl_LowestStackPointer = ACPI_CAST_PTR (ACPI_SIZE, ACPI_SIZE_MAX);
257 #endif
258
259 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
260 AcpiGbl_DisplayFinalMemStats = FALSE;
261 AcpiGbl_DisableMemTracking = FALSE;
262 #endif
263
264 return_ACPI_STATUS (AE_OK);
265 }
266
267
268 /******************************************************************************
269 *
270 * FUNCTION: AcpiUtTerminate
271 *
272 * PARAMETERS: none
273 *
274 * RETURN: none
275 *
276 * DESCRIPTION: Free global memory
277 *
278 ******************************************************************************/
279
280 static void
AcpiUtTerminate(void)281 AcpiUtTerminate (
282 void)
283 {
284 ACPI_FUNCTION_TRACE (UtTerminate);
285
286 AcpiUtFreeGpeLists ();
287 AcpiUtDeleteAddressLists ();
288 return_VOID;
289 }
290
291
292 /*******************************************************************************
293 *
294 * FUNCTION: AcpiUtSubsystemShutdown
295 *
296 * PARAMETERS: None
297 *
298 * RETURN: None
299 *
300 * DESCRIPTION: Shutdown the various components. Do not delete the mutex
301 * objects here, because the AML debugger may be still running.
302 *
303 ******************************************************************************/
304
305 void
AcpiUtSubsystemShutdown(void)306 AcpiUtSubsystemShutdown (
307 void)
308 {
309 ACPI_FUNCTION_TRACE (UtSubsystemShutdown);
310
311
312 /* Just exit if subsystem is already shutdown */
313
314 if (AcpiGbl_Shutdown)
315 {
316 ACPI_ERROR ((AE_INFO, "ACPI Subsystem is already terminated"));
317 return_VOID;
318 }
319
320 /* Subsystem appears active, go ahead and shut it down */
321
322 AcpiGbl_Shutdown = TRUE;
323 AcpiGbl_StartupFlags = 0;
324 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
325
326 #ifndef ACPI_ASL_COMPILER
327
328 /* Close the AcpiEvent Handling */
329
330 AcpiEvTerminate ();
331
332 /* Delete any dynamic _OSI interfaces */
333
334 AcpiUtInterfaceTerminate ();
335 #endif
336
337 /* Close the Namespace */
338
339 AcpiNsTerminate ();
340
341 /* Delete the ACPI tables */
342
343 AcpiTbTerminate ();
344
345 /* Close the globals */
346
347 AcpiUtTerminate ();
348
349 /* Purge the local caches */
350
351 (void) AcpiUtDeleteCaches ();
352 return_VOID;
353 }
354