ACPICA: Move ACPI timer prototypes to public acpixf file
[deliverable/linux.git] / drivers / acpi / acpica / utglobal.c
CommitLineData
1da177e4
LT
1/******************************************************************************
2 *
3 * Module Name: utglobal - Global variables for the ACPI subsystem
4 *
5 *****************************************************************************/
6
7/*
77848130 8 * Copyright (C) 2000 - 2012, Intel Corp.
1da177e4
LT
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 DEFINE_ACPI_GLOBALS
45
214f2c90 46#include <linux/export.h>
1da177e4 47#include <acpi/acpi.h>
e2f7a777 48#include "accommon.h"
1da177e4
LT
49
50#define _COMPONENT ACPI_UTILITIES
e97d6bf1 51ACPI_MODULE_NAME("utglobal")
1da177e4 52
44f6c012 53/*******************************************************************************
1da177e4
LT
54 *
55 * Static global variable initialization.
56 *
57 ******************************************************************************/
1da177e4
LT
58/*
59 * We want the debug switches statically initialized so they
60 * are already set when the debugger is entered.
61 */
1da177e4 62/* Debug switch - level and trace mask */
4be44fcd 63u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
1da177e4
LT
64
65/* Debug switch - layer (component) mask */
66
e76f4276 67u32 acpi_dbg_layer = 0;
4be44fcd 68u32 acpi_gbl_nesting_level = 0;
1da177e4
LT
69
70/* Debugger globals */
71
4be44fcd
LB
72u8 acpi_gbl_db_terminate_threads = FALSE;
73u8 acpi_gbl_abort_method = FALSE;
74u8 acpi_gbl_method_executing = FALSE;
1da177e4
LT
75
76/* System flags */
77
4be44fcd 78u32 acpi_gbl_startup_flags = 0;
1da177e4
LT
79
80/* System starts uninitialized */
81
4be44fcd 82u8 acpi_gbl_shutdown = TRUE;
1da177e4 83
4be44fcd 84const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
1da177e4
LT
85 "\\_S0_",
86 "\\_S1_",
87 "\\_S2_",
88 "\\_S3_",
89 "\\_S4_",
90 "\\_S5_"
91};
92
15b8dd53
BM
93const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = {
94 "_S0W",
95 "_S1W",
96 "_S2W",
97 "_S3W",
98 "_S4W"
99};
100
101const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS] = {
1da177e4
LT
102 "_S1D",
103 "_S2D",
104 "_S3D",
105 "_S4D"
106};
107
84fb2c97
BM
108/*******************************************************************************
109 *
110 * Namespace globals
111 *
112 ******************************************************************************/
1da177e4
LT
113/*
114 * Predefined ACPI Names (Built-in to the Interpreter)
115 *
116 * NOTES:
117 * 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
118 * during the initialization sequence.
119 * 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
81256669
BM
120 * perform a Notify() operation on it. 09/2010: Changed to type Device.
121 * This still allows notifies, but does not confuse host code that
122 * searches for valid thermal_zone objects.
1da177e4 123 */
0897831b
BM
124const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
125 {"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
126 {"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
127 {"_SB_", ACPI_TYPE_DEVICE, NULL},
128 {"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
81256669 129 {"_TZ_", ACPI_TYPE_DEVICE, NULL},
0897831b
BM
130 {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
131 {"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
132 {"_GL_", ACPI_TYPE_MUTEX, (char *)1},
1da177e4
LT
133
134#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
0897831b 135 {"_OSI", ACPI_TYPE_METHOD, (char *)1},
1da177e4 136#endif
1da177e4 137
44f6c012
RM
138 /* Table terminator */
139
0897831b 140 {NULL, ACPI_TYPE_ANY, NULL}
44f6c012 141};
1da177e4 142
1da177e4
LT
143/******************************************************************************
144 *
145 * Event and Hardware globals
146 *
147 ******************************************************************************/
148
4be44fcd 149struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
1da177e4
LT
150 /* Name Parent Register Register Bit Position Register Bit Mask */
151
4be44fcd
LB
152 /* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
153 ACPI_BITPOSITION_TIMER_STATUS,
154 ACPI_BITMASK_TIMER_STATUS},
155 /* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
156 ACPI_BITPOSITION_BUS_MASTER_STATUS,
157 ACPI_BITMASK_BUS_MASTER_STATUS},
158 /* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
159 ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
160 ACPI_BITMASK_GLOBAL_LOCK_STATUS},
161 /* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
162 ACPI_BITPOSITION_POWER_BUTTON_STATUS,
163 ACPI_BITMASK_POWER_BUTTON_STATUS},
164 /* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
165 ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
166 ACPI_BITMASK_SLEEP_BUTTON_STATUS},
167 /* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
168 ACPI_BITPOSITION_RT_CLOCK_STATUS,
169 ACPI_BITMASK_RT_CLOCK_STATUS},
170 /* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
171 ACPI_BITPOSITION_WAKE_STATUS,
172 ACPI_BITMASK_WAKE_STATUS},
173 /* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
174 ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
175 ACPI_BITMASK_PCIEXP_WAKE_STATUS},
176
177 /* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
178 ACPI_BITPOSITION_TIMER_ENABLE,
179 ACPI_BITMASK_TIMER_ENABLE},
180 /* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
181 ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
182 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
183 /* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
184 ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
185 ACPI_BITMASK_POWER_BUTTON_ENABLE},
186 /* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
187 ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
188 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
189 /* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
190 ACPI_BITPOSITION_RT_CLOCK_ENABLE,
191 ACPI_BITMASK_RT_CLOCK_ENABLE},
4be44fcd
LB
192 /* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE,
193 ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
194 ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
195
196 /* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
197 ACPI_BITPOSITION_SCI_ENABLE,
198 ACPI_BITMASK_SCI_ENABLE},
199 /* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL,
200 ACPI_BITPOSITION_BUS_MASTER_RLD,
201 ACPI_BITMASK_BUS_MASTER_RLD},
202 /* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL,
203 ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
204 ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
82d79b86
BM
205 /* ACPI_BITREG_SLEEP_TYPE */ {ACPI_REGISTER_PM1_CONTROL,
206 ACPI_BITPOSITION_SLEEP_TYPE,
207 ACPI_BITMASK_SLEEP_TYPE},
4be44fcd
LB
208 /* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
209 ACPI_BITPOSITION_SLEEP_ENABLE,
210 ACPI_BITMASK_SLEEP_ENABLE},
211
212 /* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL,
213 ACPI_BITPOSITION_ARB_DISABLE,
214 ACPI_BITMASK_ARB_DISABLE}
1da177e4
LT
215};
216
4be44fcd
LB
217struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
218 /* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS,
219 ACPI_BITREG_TIMER_ENABLE,
220 ACPI_BITMASK_TIMER_STATUS,
221 ACPI_BITMASK_TIMER_ENABLE},
222 /* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
223 ACPI_BITREG_GLOBAL_LOCK_ENABLE,
224 ACPI_BITMASK_GLOBAL_LOCK_STATUS,
225 ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
226 /* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS,
227 ACPI_BITREG_POWER_BUTTON_ENABLE,
228 ACPI_BITMASK_POWER_BUTTON_STATUS,
229 ACPI_BITMASK_POWER_BUTTON_ENABLE},
230 /* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
231 ACPI_BITREG_SLEEP_BUTTON_ENABLE,
232 ACPI_BITMASK_SLEEP_BUTTON_STATUS,
233 ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
234 /* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS,
235 ACPI_BITREG_RT_CLOCK_ENABLE,
236 ACPI_BITMASK_RT_CLOCK_STATUS,
237 ACPI_BITMASK_RT_CLOCK_ENABLE},
1da177e4
LT
238};
239
44f6c012 240/*******************************************************************************
1da177e4
LT
241 *
242 * FUNCTION: acpi_ut_init_globals
243 *
44f6c012
RM
244 * PARAMETERS: None
245 *
b417d40b 246 * RETURN: Status
1da177e4
LT
247 *
248 * DESCRIPTION: Init library globals. All globals that require specific
249 * initialization should be initialized here!
250 *
44f6c012 251 ******************************************************************************/
1da177e4 252
b417d40b 253acpi_status acpi_ut_init_globals(void)
1da177e4 254{
4be44fcd
LB
255 acpi_status status;
256 u32 i;
1da177e4 257
b229cf92 258 ACPI_FUNCTION_TRACE(ut_init_globals);
1da177e4 259
73459f73
RM
260 /* Create all memory caches */
261
4be44fcd
LB
262 status = acpi_ut_create_caches();
263 if (ACPI_FAILURE(status)) {
b417d40b 264 return_ACPI_STATUS(status);
73459f73 265 }
1da177e4 266
f654c0fe
LM
267 /* Address Range lists */
268
269 for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++) {
270 acpi_gbl_address_range_list[i] = NULL;
271 }
272
1da177e4
LT
273 /* Mutex locked flags */
274
4c90ece2 275 for (i = 0; i < ACPI_NUM_MUTEX; i++) {
4be44fcd
LB
276 acpi_gbl_mutex_info[i].mutex = NULL;
277 acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
278 acpi_gbl_mutex_info[i].use_count = 0;
1da177e4
LT
279 }
280
28f55ebc
BM
281 for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) {
282 acpi_gbl_owner_id_mask[i] = 0;
283 }
ec41f193
BM
284
285 /* Last owner_iD is never valid */
286
287 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
28f55ebc 288
1da177e4
LT
289 /* GPE support */
290
4be44fcd
LB
291 acpi_gbl_gpe_xrupt_list_head = NULL;
292 acpi_gbl_gpe_fadt_blocks[0] = NULL;
293 acpi_gbl_gpe_fadt_blocks[1] = NULL;
e97d6bf1 294 acpi_current_gpe_count = 0;
3a37898d 295 acpi_gbl_all_gpes_initialized = FALSE;
1da177e4 296
3e08e2d2 297 /* Global handlers */
1da177e4 298
4be44fcd
LB
299 acpi_gbl_system_notify.handler = NULL;
300 acpi_gbl_device_notify.handler = NULL;
301 acpi_gbl_exception_handler = NULL;
302 acpi_gbl_init_handler = NULL;
3e08e2d2 303 acpi_gbl_table_handler = NULL;
b0ed7a91 304 acpi_gbl_interface_handler = NULL;
a0fcdb23 305 acpi_gbl_global_event_handler = NULL;
1da177e4 306
1da177e4
LT
307 /* Global Lock support */
308
967440e3 309 acpi_gbl_global_lock_semaphore = NULL;
c81da666 310 acpi_gbl_global_lock_mutex = NULL;
4be44fcd 311 acpi_gbl_global_lock_acquired = FALSE;
4be44fcd 312 acpi_gbl_global_lock_handle = 0;
009c4cbe 313 acpi_gbl_global_lock_present = FALSE;
1da177e4
LT
314
315 /* Miscellaneous variables */
316
43323cb4 317 acpi_gbl_DSDT = NULL;
4be44fcd
LB
318 acpi_gbl_cm_single_step = FALSE;
319 acpi_gbl_db_terminate_threads = FALSE;
320 acpi_gbl_shutdown = FALSE;
321 acpi_gbl_ns_lookup_count = 0;
322 acpi_gbl_ps_find_count = 0;
323 acpi_gbl_acpi_hardware_present = TRUE;
28f55ebc
BM
324 acpi_gbl_last_owner_id_index = 0;
325 acpi_gbl_next_owner_id_offset = 0;
50eca3eb
BM
326 acpi_gbl_trace_method_name = 0;
327 acpi_gbl_trace_dbg_level = 0;
328 acpi_gbl_trace_dbg_layer = 0;
4be44fcd
LB
329 acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
330 acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
7f071903 331 acpi_gbl_osi_data = 0;
b0ed7a91 332 acpi_gbl_osi_mutex = NULL;
ef09c4f5 333 acpi_gbl_reg_methods_executed = FALSE;
1da177e4
LT
334
335 /* Hardware oriented */
336
4be44fcd
LB
337 acpi_gbl_events_initialized = FALSE;
338 acpi_gbl_system_awake_and_running = TRUE;
1da177e4
LT
339
340 /* Namespace */
341
7f0c826a 342 acpi_gbl_module_code_list = NULL;
4be44fcd 343 acpi_gbl_root_node = NULL;
1da177e4 344 acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
61686124 345 acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED;
4be44fcd 346 acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
c45b5c09 347 acpi_gbl_root_node_struct.parent = NULL;
4be44fcd
LB
348 acpi_gbl_root_node_struct.child = NULL;
349 acpi_gbl_root_node_struct.peer = NULL;
350 acpi_gbl_root_node_struct.object = NULL;
1da177e4
LT
351
352#ifdef ACPI_DEBUG_OUTPUT
1d18c058 353 acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX);
1da177e4
LT
354#endif
355
d41eb99b
BM
356#ifdef ACPI_DBG_TRACK_ALLOCATIONS
357 acpi_gbl_display_final_mem_stats = FALSE;
358#endif
359
b417d40b 360 return_ACPI_STATUS(AE_OK);
1da177e4 361}
8313524a 362
e97d6bf1 363ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
8313524a 364ACPI_EXPORT_SYMBOL(acpi_dbg_level)
1044f1f6 365ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
e97d6bf1 366ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)
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