1 /******************************************************************************
2 *
3 * Module Name: utglobal - Global variables for the ACPI subsystem
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2011, 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 DEFINE_ACPI_GLOBALS
46
47 #include "acpi.h"
48 #include "accommon.h"
49
50 #define _COMPONENT ACPI_UTILITIES
51 ACPI_MODULE_NAME ("utglobal")
52
53
54 /*******************************************************************************
55 *
56 * Static global variable initialization.
57 *
58 ******************************************************************************/
59
60 /*
61 * We want the debug switches statically initialized so they
62 * are already set when the debugger is entered.
63 */
64
65 /* Debug switch - level and trace mask */
66
67 #ifdef ACPI_DEBUG_OUTPUT
68 UINT32 AcpiDbgLevel = ACPI_DEBUG_DEFAULT;
69 #else
70 UINT32 AcpiDbgLevel = ACPI_NORMAL_DEFAULT;
71 #endif
72
73 /* Debug switch - layer (component) mask */
74
75 UINT32 AcpiDbgLayer = ACPI_COMPONENT_DEFAULT;
76 UINT32 AcpiGbl_NestingLevel = 0;
77
78 /* Debugger globals */
79
80 BOOLEAN AcpiGbl_DbTerminateThreads = FALSE;
81 BOOLEAN AcpiGbl_AbortMethod = FALSE;
82 BOOLEAN AcpiGbl_MethodExecuting = FALSE;
83
84 /* System flags */
85
86 UINT32 AcpiGbl_StartupFlags = 0;
87
88 /* System starts uninitialized */
89
90 BOOLEAN AcpiGbl_Shutdown = TRUE;
91
92 const char *AcpiGbl_SleepStateNames[ACPI_S_STATE_COUNT] =
93 {
94 "\\_S0_",
95 "\\_S1_",
96 "\\_S2_",
97 "\\_S3_",
98 "\\_S4_",
99 "\\_S5_"
100 };
101
102 const char *AcpiGbl_LowestDstateNames[ACPI_NUM_SxW_METHODS] =
103 {
104 "_S0W",
105 "_S1W",
106 "_S2W",
107 "_S3W",
108 "_S4W"
109 };
110
111 const char *AcpiGbl_HighestDstateNames[ACPI_NUM_SxD_METHODS] =
112 {
113 "_S1D",
114 "_S2D",
115 "_S3D",
116 "_S4D"
117 };
118
119
120 /*******************************************************************************
121 *
122 * Namespace globals
123 *
124 ******************************************************************************/
125
126 /*
127 * Predefined ACPI Names (Built-in to the Interpreter)
128 *
129 * NOTES:
130 * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
131 * during the initialization sequence.
132 * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
133 * perform a Notify() operation on it. 09/2010: Changed to type Device.
134 * This still allows notifies, but does not confuse host code that
135 * searches for valid ThermalZone objects.
136 */
137 const ACPI_PREDEFINED_NAMES AcpiGbl_PreDefinedNames[] =
138 {
139 {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
140 {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
141 {"_SB_", ACPI_TYPE_DEVICE, NULL},
142 {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
143 {"_TZ_", ACPI_TYPE_DEVICE, NULL},
144 {"_REV", ACPI_TYPE_INTEGER, (char *) ACPI_CA_SUPPORT_LEVEL},
145 {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
146 {"_GL_", ACPI_TYPE_MUTEX, (char *) 1},
147
148 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
149 {"_OSI", ACPI_TYPE_METHOD, (char *) 1},
150 #endif
151
152 /* Table terminator */
153
154 {NULL, ACPI_TYPE_ANY, NULL}
155 };
156
157
158 /******************************************************************************
159 *
160 * Event and Hardware globals
161 *
162 ******************************************************************************/
163
164 ACPI_BIT_REGISTER_INFO AcpiGbl_BitRegisterInfo[ACPI_NUM_BITREG] =
165 {
166 /* Name Parent Register Register Bit Position Register Bit Mask */
167
168 /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_TIMER_STATUS, ACPI_BITMASK_TIMER_STATUS},
169 /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_BUS_MASTER_STATUS, ACPI_BITMASK_BUS_MASTER_STATUS},
170 /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_GLOBAL_LOCK_STATUS, ACPI_BITMASK_GLOBAL_LOCK_STATUS},
171 /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_POWER_BUTTON_STATUS, ACPI_BITMASK_POWER_BUTTON_STATUS},
172 /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_SLEEP_BUTTON_STATUS, ACPI_BITMASK_SLEEP_BUTTON_STATUS},
173 /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_RT_CLOCK_STATUS, ACPI_BITMASK_RT_CLOCK_STATUS},
174 /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_WAKE_STATUS, ACPI_BITMASK_WAKE_STATUS},
175 /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS, ACPI_BITPOSITION_PCIEXP_WAKE_STATUS, ACPI_BITMASK_PCIEXP_WAKE_STATUS},
176
177 /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_TIMER_ENABLE, ACPI_BITMASK_TIMER_ENABLE},
178 /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE, ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
179 /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_ENABLE},
180 /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
181 /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_RT_CLOCK_ENABLE, ACPI_BITMASK_RT_CLOCK_ENABLE},
182 /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE, ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE, ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
183
184 /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SCI_ENABLE, ACPI_BITMASK_SCI_ENABLE},
185 /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_BUS_MASTER_RLD, ACPI_BITMASK_BUS_MASTER_RLD},
186 /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE, ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
187 /* ACPI_BITREG_SLEEP_TYPE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SLEEP_TYPE, ACPI_BITMASK_SLEEP_TYPE},
188 /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL, ACPI_BITPOSITION_SLEEP_ENABLE, ACPI_BITMASK_SLEEP_ENABLE},
189
190 /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL, ACPI_BITPOSITION_ARB_DISABLE, ACPI_BITMASK_ARB_DISABLE}
191 };
192
193
194 ACPI_FIXED_EVENT_INFO AcpiGbl_FixedEventInfo[ACPI_NUM_FIXED_EVENTS] =
195 {
196 /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS, ACPI_BITREG_TIMER_ENABLE, ACPI_BITMASK_TIMER_STATUS, ACPI_BITMASK_TIMER_ENABLE},
197 /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS, ACPI_BITREG_GLOBAL_LOCK_ENABLE, ACPI_BITMASK_GLOBAL_LOCK_STATUS, ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
198 /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS, ACPI_BITREG_POWER_BUTTON_ENABLE, ACPI_BITMASK_POWER_BUTTON_STATUS, ACPI_BITMASK_POWER_BUTTON_ENABLE},
199 /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS, ACPI_BITREG_SLEEP_BUTTON_ENABLE, ACPI_BITMASK_SLEEP_BUTTON_STATUS, ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
200 /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS, ACPI_BITREG_RT_CLOCK_ENABLE, ACPI_BITMASK_RT_CLOCK_STATUS, ACPI_BITMASK_RT_CLOCK_ENABLE},
201 };
202
203
204 /*******************************************************************************
205 *
206 * FUNCTION: AcpiUtInitGlobals
207 *
208 * PARAMETERS: None
209 *
210 * RETURN: Status
211 *
212 * DESCRIPTION: Init ACPICA globals. All globals that require specific
213 * initialization should be initialized here!
214 *
215 ******************************************************************************/
216
217 ACPI_STATUS
218 AcpiUtInitGlobals (
219 void)
220 {
221 ACPI_STATUS Status;
222 UINT32 i;
223
224
225 ACPI_FUNCTION_TRACE (UtInitGlobals);
226
227
228 /* Create all memory caches */
229
230 Status = AcpiUtCreateCaches ();
231 if (ACPI_FAILURE (Status))
232 {
233 return_ACPI_STATUS (Status);
234 }
235
236 /* Mutex locked flags */
237
238 for (i = 0; i < ACPI_NUM_MUTEX; i++)
239 {
240 AcpiGbl_MutexInfo[i].Mutex = NULL;
241 AcpiGbl_MutexInfo[i].ThreadId = ACPI_MUTEX_NOT_ACQUIRED;
242 AcpiGbl_MutexInfo[i].UseCount = 0;
243 }
244
245 for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++)
246 {
247 AcpiGbl_OwnerIdMask[i] = 0;
248 }
249
250 /* Last OwnerID is never valid */
251
252 AcpiGbl_OwnerIdMask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
253
254 /* Event counters */
255
256 AcpiMethodCount = 0;
257 AcpiSciCount = 0;
258 AcpiGpeCount = 0;
259
260 for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
261 {
262 AcpiFixedEventCount[i] = 0;
263 }
264
265 /* GPE support */
266
267 AcpiGbl_AllGpesInitialized = FALSE;
268 AcpiGbl_GpeXruptListHead = NULL;
269 AcpiGbl_GpeFadtBlocks[0] = NULL;
270 AcpiGbl_GpeFadtBlocks[1] = NULL;
271 AcpiCurrentGpeCount = 0;
272
273 /* Global handlers */
274
275 AcpiGbl_SystemNotify.Handler = NULL;
276 AcpiGbl_DeviceNotify.Handler = NULL;
277 AcpiGbl_ExceptionHandler = NULL;
278 AcpiGbl_InitHandler = NULL;
279 AcpiGbl_TableHandler = NULL;
280 AcpiGbl_InterfaceHandler = NULL;
281 AcpiGbl_GlobalEventHandler = NULL;
282
283 /* Global Lock support */
284
285 AcpiGbl_GlobalLockSemaphore = NULL;
286 AcpiGbl_GlobalLockMutex = NULL;
287 AcpiGbl_GlobalLockAcquired = FALSE;
288 AcpiGbl_GlobalLockHandle = 0;
289 AcpiGbl_GlobalLockPresent = FALSE;
290
291 /* Miscellaneous variables */
292
293 AcpiGbl_DSDT = NULL;
294 AcpiGbl_CmSingleStep = FALSE;
295 AcpiGbl_DbTerminateThreads = FALSE;
296 AcpiGbl_Shutdown = FALSE;
297 AcpiGbl_NsLookupCount = 0;
298 AcpiGbl_PsFindCount = 0;
299 AcpiGbl_AcpiHardwarePresent = TRUE;
300 AcpiGbl_LastOwnerIdIndex = 0;
301 AcpiGbl_NextOwnerIdOffset = 0;
302 AcpiGbl_TraceMethodName = 0;
303 AcpiGbl_TraceDbgLevel = 0;
304 AcpiGbl_TraceDbgLayer = 0;
305 AcpiGbl_DebuggerConfiguration = DEBUGGER_THREADING;
306 AcpiGbl_DbOutputFlags = ACPI_DB_CONSOLE_OUTPUT;
307 AcpiGbl_OsiData = 0;
308 AcpiGbl_OsiMutex = NULL;
309 AcpiGbl_RegMethodsExecuted = FALSE;
310
311 /* Hardware oriented */
312
313 AcpiGbl_EventsInitialized = FALSE;
314 AcpiGbl_SystemAwakeAndRunning = TRUE;
315
316 /* Namespace */
317
318 AcpiGbl_ModuleCodeList = NULL;
319 AcpiGbl_RootNode = NULL;
320 AcpiGbl_RootNodeStruct.Name.Integer = ACPI_ROOT_NAME;
321 AcpiGbl_RootNodeStruct.DescriptorType = ACPI_DESC_TYPE_NAMED;
322 AcpiGbl_RootNodeStruct.Type = ACPI_TYPE_DEVICE;
323 AcpiGbl_RootNodeStruct.Parent = NULL;
324 AcpiGbl_RootNodeStruct.Child = NULL;
325 AcpiGbl_RootNodeStruct.Peer = NULL;
326 AcpiGbl_RootNodeStruct.Object = NULL;
327
328
329 #ifdef ACPI_DISASSEMBLER
330 AcpiGbl_ExternalList = NULL;
331 #endif
332
333 #ifdef ACPI_DEBUG_OUTPUT
334 AcpiGbl_LowestStackPointer = ACPI_CAST_PTR (ACPI_SIZE, ACPI_SIZE_MAX);
335 #endif
336
337 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
338 AcpiGbl_DisplayFinalMemStats = FALSE;
339 AcpiGbl_DisableMemTracking = FALSE;
340 #endif
341
342 return_ACPI_STATUS (AE_OK);
343 }
344
345 /* Public globals */
346
347 ACPI_EXPORT_SYMBOL (AcpiGbl_FADT)
348 ACPI_EXPORT_SYMBOL (AcpiDbgLevel)
349 ACPI_EXPORT_SYMBOL (AcpiDbgLayer)
350 ACPI_EXPORT_SYMBOL (AcpiGpeCount)
351 ACPI_EXPORT_SYMBOL (AcpiCurrentGpeCount)