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 |
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 |
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 = ACPI_MAX_LOOP_COUNT; |
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 |
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 |
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 | |