1 /******************************************************************************
2 *
3 * Module Name: utglobal - Global variables for the ACPI subsystem
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2013, 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 #define __UTGLOBAL_C__
45 #define EXPORT_ACPI_INTERFACES
46 #define DEFINE_ACPI_GLOBALS
47
48 #include "acpi.h"
49 #include "accommon.h"
50
51 #define _COMPONENT ACPI_UTILITIES
52 ACPI_MODULE_NAME ("utglobal")
53
54
55 /*******************************************************************************
56 *
57 * Static global variable initialization.
58 *
59 ******************************************************************************/
60
61 /*
62 * We want the debug switches statically initialized so they
63 * are already set when the debugger is entered.
64 */
65
66 /* Debug switch - level and trace mask */
67
68 #ifdef ACPI_DEBUG_OUTPUT
69 UINT32 AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
70 #else
71 UINT32 AcpiDbgLevel = ACPI_NORMAL_DEFAULT;
72 #endif
73
74 /* Debug switch - layer (component) mask */
75
76 UINT32 AcpiDbgLayer = ACPI_COMPONENT_DEFAULT;
77 UINT32 AcpiGbl_NestingLevel = 0;
78
79 /* Debugger globals */
80
81 BOOLEAN AcpiGbl_DbTerminateThreads = FALSE;
82 BOOLEAN AcpiGbl_AbortMethod = FALSE;
83 BOOLEAN AcpiGbl_MethodExecuting = FALSE;
84
85 /* System flags */
86
87 UINT32 AcpiGbl_StartupFlags = 0;
88
89 /* System starts uninitialized */
90
91 BOOLEAN AcpiGbl_Shutdown = TRUE;
92
93 const char *AcpiGbl_SleepStateNames[ACPI_S_STATE_COUNT] =
94 {
95 "\\_S0_",
96 "\\_S1_",
97 "\\_S2_",
98 "\\_S3_",
99 "\\_S4_",
100 "\\_S5_"
101 };
102
103 const char *AcpiGbl_LowestDstateNames[ACPI_NUM_SxW_METHODS] =
104 {
105 "_S0W",
106 "_S1W",
107 "_S2W",
108 "_S3W",
109 "_S4W"
110 };
111
112 const char *AcpiGbl_HighestDstateNames[ACPI_NUM_SxD_METHODS] =
113 {
114 "_S1D",
115 "_S2D",
116 "_S3D",
117 "_S4D"
118 };
119
120
121 /*******************************************************************************
122 *
123 * Namespace globals
124 *
125 ******************************************************************************/
126
127 /*
128 * Predefined ACPI Names (Built-in to the Interpreter)
129 *
130 * NOTES:
131 * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
132 * during the initialization sequence.
133 * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
134 * perform a Notify() operation on it. 09/2010: Changed to type Device.
135 * This still allows notifies, but does not confuse host code that
136 * searches for valid ThermalZone objects.
137 */
138 const ACPI_PREDEFINED_NAMES AcpiGbl_PreDefinedNames[] =
139 {
140 {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
141 {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
142 {"_SB_", ACPI_TYPE_DEVICE, NULL},
143 {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
144 {"_TZ_", ACPI_TYPE_DEVICE, NULL},
145 {"_REV", ACPI_TYPE_INTEGER, (char *) ACPI_CA_SUPPORT_LEVEL},
146 {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
147 {"_GL_", ACPI_TYPE_MUTEX, (char *) 1},
148
149 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
150 {"_OSI", ACPI_TYPE_METHOD, (char *) 1},
151 #endif
152
153 /* Table terminator */
154
155 {NULL, ACPI_TYPE_ANY, NULL}
156 };
157
158
159 #if (!ACPI_REDUCED_HARDWARE)
160 /******************************************************************************
161 *
162 * Event and Hardware globals
163 *
164 ******************************************************************************/
165
166 ACPI_BIT_REGISTER_INFO AcpiGbl_BitRegisterInfo[ACPI_NUM_BITREG] =
167 {
168 /* Name Parent Register Register Bit Position Register Bit Mask */
169
170 /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_TIMER_STATUS, ACPI_BITMASK_TIMER_STATUS},
171 /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_BUS_MASTER_STATUS, ACPI_BITMASK_BUS_MASTER_STATUS},
172 /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_GLOBAL_LOCK_STATUS, ACPI_BITMASK_GLOBAL_LOCK_STATUS},
173 /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_POWER_BUTTON_STATUS, ACPI_BITMASK_POWER_BUTTON_STATUS},
174 /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_SLEEP_BUTTON_STATUS, ACPI_BITMASK_SLEEP_BUTTON_STATUS},
175 /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_RT_CLOCK_STATUS, ACPI_BITMASK_RT_CLOCK_STATUS},
176 /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_WAKE_STATUS, ACPI_BITMASK_WAKE_STATUS},
177 /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_PCIEXP_WAKE_STATUS, ACPI_BITMASK_PCIEXP_WAKE_STATUS},
178
179 /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_TIMER_ENABLE, ACPI_BITMASK_TIMER_ENABLE},
180 /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE, ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
181 /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_ENABLE},
182 /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
183 /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_RT_CLOCK_ENABLE, ACPI_BITMASK_RT_CLOCK_ENABLE},
184 /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE, ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
185
186 /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SCI_ENABLE, ACPI_BITMASK_SCI_ENABLE},
187 /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_BUS_MASTER_RLD, ACPI_BITMASK_BUS_MASTER_RLD},
188 /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE, ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
189 /* ACPI_BITREG_SLEEP_TYPE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SLEEP_TYPE, ACPI_BITMASK_SLEEP_TYPE},
190 /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SLEEP_ENABLE, ACPI_BITMASK_SLEEP_ENABLE},
191
192 /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL, ACPI_BITPOSITION_ARB_DISABLE, ACPI_BITMASK_ARB_DISABLE}
193 };
194
195
196 ACPI_FIXED_EVENT_INFO AcpiGbl_FixedEventInfo[ACPI_NUM_FIXED_EVENTS] =
197 {
198 /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS, ACPI_BITREG_TIMER_ENABLE, ACPI_BITMASK_TIMER_STATUS, ACPI_BITMASK_TIMER_ENABLE},
199 /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS, ACPI_BITREG_GLOBAL_LOCK_ENABLE, ACPI_BITMASK_GLOBAL_LOCK_STATUS, ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
200 /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS, ACPI_BITREG_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_STATUS, ACPI_BITMASK_POWER_BUTTON_ENABLE},
201 /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS, ACPI_BITREG_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_STATUS, ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
202 /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS, ACPI_BITREG_RT_CLOCK_ENABLE, ACPI_BITMASK_RT_CLOCK_STATUS, ACPI_BITMASK_RT_CLOCK_ENABLE},
203 };
204 #endif /* !ACPI_REDUCED_HARDWARE */
205
206
207 /*******************************************************************************
208 *
209 * FUNCTION: AcpiUtInitGlobals
210 *
211 * PARAMETERS: None
212 *
213 * RETURN: Status
214 *
215 * DESCRIPTION: Initialize ACPICA globals. All globals that require specific
216 * initialization should be initialized here. This allows for
217 * a warm restart.
218 *
219 ******************************************************************************/
220
221 ACPI_STATUS
222 AcpiUtInitGlobals (
223 void)
224 {
225 ACPI_STATUS Status;
226 UINT32 i;
227
228
229 ACPI_FUNCTION_TRACE (UtInitGlobals);
230
231
232 /* Create all memory caches */
233
234 Status = AcpiUtCreateCaches ();
235 if (ACPI_FAILURE (Status))
236 {
237 return_ACPI_STATUS (Status);
238 }
239
240 /* Address Range lists */
241
242 for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++)
243 {
244 AcpiGbl_AddressRangeList[i] = NULL;
245 }
246
247 /* Mutex locked flags */
248
249 for (i = 0; i < ACPI_NUM_MUTEX; i++)
250 {
251 AcpiGbl_MutexInfo[i].Mutex = NULL;
252 AcpiGbl_MutexInfo[i].ThreadId = ACPI_MUTEX_NOT_ACQUIRED;
253 AcpiGbl_MutexInfo[i].UseCount = 0;
254 }
255
256 for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++)
257 {
258 AcpiGbl_OwnerIdMask[i] = 0;
259 }
260
261 /* Last OwnerID is never valid */
262
263 AcpiGbl_OwnerIdMask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
264
265 /* Event counters */
266
267 AcpiMethodCount = 0;
268 AcpiSciCount = 0;
269 AcpiGpeCount = 0;
270
271 for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
272 {
273 AcpiFixedEventCount[i] = 0;
274 }
275
276 #if (!ACPI_REDUCED_HARDWARE)
277
278 /* GPE/SCI support */
279
280 AcpiGbl_AllGpesInitialized = FALSE;
281 AcpiGbl_GpeXruptListHead = NULL;
282 AcpiGbl_GpeFadtBlocks[0] = NULL;
283 AcpiGbl_GpeFadtBlocks[1] = NULL;
284 AcpiCurrentGpeCount = 0;
285
286 AcpiGbl_GlobalEventHandler = NULL;
287 AcpiGbl_SciHandlerList = NULL;
288
289 #endif /* !ACPI_REDUCED_HARDWARE */
290
291 /* Global handlers */
292
293 AcpiGbl_GlobalNotify[0].Handler = NULL;
294 AcpiGbl_GlobalNotify[1].Handler = NULL;
295 AcpiGbl_ExceptionHandler = NULL;
296 AcpiGbl_InitHandler = NULL;
297 AcpiGbl_TableHandler = NULL;
298 AcpiGbl_InterfaceHandler = NULL;
299
300 /* Global Lock support */
301
302 AcpiGbl_GlobalLockSemaphore = NULL;
303 AcpiGbl_GlobalLockMutex = NULL;
304 AcpiGbl_GlobalLockAcquired = FALSE;
305 AcpiGbl_GlobalLockHandle = 0;
306 AcpiGbl_GlobalLockPresent = FALSE;
307
308 /* Miscellaneous variables */
309
310 AcpiGbl_DSDT = NULL;
311 AcpiGbl_CmSingleStep = FALSE;
312 AcpiGbl_DbTerminateThreads = FALSE;
313 AcpiGbl_Shutdown = FALSE;
314 AcpiGbl_NsLookupCount = 0;
315 AcpiGbl_PsFindCount = 0;
316 AcpiGbl_AcpiHardwarePresent = TRUE;
317 AcpiGbl_LastOwnerIdIndex = 0;
318 AcpiGbl_NextOwnerIdOffset = 0;
319 AcpiGbl_TraceMethodName = 0;
320 AcpiGbl_TraceDbgLevel = 0;
321 AcpiGbl_TraceDbgLayer = 0;
322 AcpiGbl_DebuggerConfiguration = DEBUGGER_THREADING;
323 AcpiGbl_DbOutputFlags = ACPI_DB_CONSOLE_OUTPUT;
324 AcpiGbl_OsiMutex = NULL;
325 AcpiGbl_RegMethodsExecuted = FALSE;
326
327 /* Hardware oriented */
328
329 AcpiGbl_EventsInitialized = FALSE;
330 AcpiGbl_SystemAwakeAndRunning = TRUE;
331
332 /* Namespace */
333
334 AcpiGbl_ModuleCodeList = NULL;
335 AcpiGbl_RootNode = NULL;
336 AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME;
337 AcpiGbl_RootNodeStruct.DescriptorType = ACPI_DESC_TYPE_NAMED;
338 AcpiGbl_RootNodeStruct.Type = ACPI_TYPE_DEVICE;
339 AcpiGbl_RootNodeStruct.Parent = NULL;
340 AcpiGbl_RootNodeStruct.Child = NULL;
341 AcpiGbl_RootNodeStruct.Peer = NULL;
342 AcpiGbl_RootNodeStruct.Object = NULL;
343
344
345 #ifdef ACPI_DISASSEMBLER
346 AcpiGbl_ExternalList = NULL;
347 AcpiGbl_NumExternalMethods = 0;
348 AcpiGbl_ResolvedExternalMethods = 0;
349 #endif
350
351 #ifdef ACPI_DEBUG_OUTPUT
352 AcpiGbl_LowestStackPointer = ACPI_CAST_PTR (ACPI_SIZE, ACPI_SIZE_MAX);
353 #endif
354
355 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
356 AcpiGbl_DisplayFinalMemStats = FALSE;
357 AcpiGbl_DisableMemTracking = FALSE;
358 #endif
359
360 return_ACPI_STATUS (AE_OK);
361 }
362
363 /* Public globals */
364
365 ACPI_EXPORT_SYMBOL (AcpiGbl_FADT)
366 ACPI_EXPORT_SYMBOL (AcpiDbgLevel)
367 ACPI_EXPORT_SYMBOL (AcpiDbgLayer)
368 ACPI_EXPORT_SYMBOL (AcpiGpeCount)
369 ACPI_EXPORT_SYMBOL (AcpiCurrentGpeCount)