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1da177e4
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1/******************************************************************************
2 *
3 * Name: acglobal.h - Declarations for global variables
4 *
5 *****************************************************************************/
6
7/*
a8357b0c 8 * Copyright (C) 2000 - 2010, Intel Corp.
1da177e4
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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#ifndef __ACGLOBAL_H__
45#define __ACGLOBAL_H__
46
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47/*
48 * Ensure that the globals are actually defined and initialized only once.
49 *
50 * The use of these macros allows a single list of globals (here) in order
51 * to simplify maintenance of the code.
52 */
53#ifdef DEFINE_ACPI_GLOBALS
54#define ACPI_EXTERN
55#define ACPI_INIT_GLOBAL(a,b) a=b
56#else
57#define ACPI_EXTERN extern
58#define ACPI_INIT_GLOBAL(a,b) a
59#endif
60
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61#ifdef DEFINE_ACPI_GLOBALS
62
63/* Public globals, available from outside ACPICA subsystem */
64
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65/*****************************************************************************
66 *
67 * Runtime configuration (static defaults that can be overriden at runtime)
68 *
69 ****************************************************************************/
70
71/*
72 * Enable "slack" in the AML interpreter? Default is FALSE, and the
73 * interpreter strictly follows the ACPI specification. Setting to TRUE
defba1d8
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74 * allows the interpreter to ignore certain errors and/or bad AML constructs.
75 *
76 * Currently, these features are enabled by this flag:
77 *
1da177e4 78 * 1) Allow "implicit return" of last value in a control method
defba1d8 79 * 2) Allow access beyond the end of an operation region
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80 * 3) Allow access to uninitialized locals/args (auto-init to integer 0)
81 * 4) Allow ANY object type to be a source operand for the Store() operator
defba1d8 82 * 5) Allow unresolved references (invalid target name) in package objects
793c2388 83 * 6) Enable warning messages for behavior that is not ACPI spec compliant
1da177e4 84 */
f8d80cdf 85u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE);
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86
87/*
88 * Automatically serialize ALL control methods? Default is FALSE, meaning
89 * to use the Serialized/not_serialized method flags on a per method basis.
90 * Only change this if the ASL code is poorly written and cannot handle
b229cf92 91 * reentrancy even though methods are marked "NotSerialized".
1da177e4 92 */
f8d80cdf 93u8 ACPI_INIT_GLOBAL(acpi_gbl_all_methods_serialized, FALSE);
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94
95/*
96 * Create the predefined _OSI method in the namespace? Default is TRUE
97 * because ACPI CA is fully compatible with other ACPI implementations.
98 * Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior.
99 */
f8d80cdf 100u8 ACPI_INIT_GLOBAL(acpi_gbl_create_osi_method, TRUE);
1da177e4 101
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102/*
103 * Optionally use default values for the ACPI register widths. Set this to
104 * TRUE to use the defaults, if an FADT contains incorrect widths/lengths.
105 */
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106u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE);
107
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108/*
109 * Optionally enable output from the AML Debug Object.
110 */
c637e486 111u32 ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE);
4cdf1a56 112
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113/*
114 * Optionally copy the entire DSDT to local memory (instead of simply
115 * mapping it.) There are some BIOSs that corrupt or replace the original
116 * DSDT, creating the need for this option. Default is FALSE, do not copy
117 * the DSDT.
118 */
119u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE);
120
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121/*
122 * Optionally truncate I/O addresses to 16 bits. Provides compatibility
123 * with other ACPI implementations. NOTE: During ACPICA initialization,
124 * this value is set to TRUE if any Windows OSI strings have been
125 * requested by the BIOS.
126 */
127u8 ACPI_INIT_GLOBAL(acpi_gbl_truncate_io_addresses, FALSE);
128
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129/* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */
130
131struct acpi_table_fadt acpi_gbl_FADT;
132u32 acpi_current_gpe_count;
133u32 acpi_gbl_trace_flags;
134acpi_name acpi_gbl_trace_method_name;
135
136#endif
06f55419 137
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138/*****************************************************************************
139 *
140 * Debug support
141 *
142 ****************************************************************************/
143
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144/* Procedure nesting level for debug output */
145
146extern u32 acpi_gbl_nesting_level;
147
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148/* Support for dynamic control method tracing mechanism */
149
150ACPI_EXTERN u32 acpi_gbl_original_dbg_level;
151ACPI_EXTERN u32 acpi_gbl_original_dbg_layer;
c5a71569
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152ACPI_EXTERN u32 acpi_gbl_trace_dbg_level;
153ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer;
c5a71569 154
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155/*****************************************************************************
156 *
157 * ACPI Table globals
158 *
159 ****************************************************************************/
160
161/*
b9ee2043
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162 * acpi_gbl_root_table_list is the master list of ACPI tables that were
163 * found in the RSDT/XSDT.
1da177e4 164 */
b9ee2043 165ACPI_EXTERN struct acpi_table_list acpi_gbl_root_table_list;
009c4cbe 166ACPI_EXTERN struct acpi_table_facs *acpi_gbl_FACS;
73459f73 167
531c633d 168/* These addresses are calculated from the FADT Event Block addresses */
c5a71569 169
531c633d 170ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_status;
c5a71569 171ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_enable;
531c633d
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172
173ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_status;
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174ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_enable;
175
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176/* DSDT information. Used to check for DSDT corruption */
177
43323cb4 178ACPI_EXTERN struct acpi_table_header *acpi_gbl_DSDT;
729df0f8
LM
179ACPI_EXTERN struct acpi_table_header acpi_gbl_original_dsdt_header;
180
1da177e4 181/*
f3d2e786
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182 * Handle both ACPI 1.0 and ACPI 2.0 Integer widths. The integer width is
183 * determined by the revision of the DSDT: If the DSDT revision is less than
184 * 2, use only the lower 32 bits of the internal 64-bit Integer.
1da177e4 185 */
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186ACPI_EXTERN u8 acpi_gbl_integer_bit_width;
187ACPI_EXTERN u8 acpi_gbl_integer_byte_width;
188ACPI_EXTERN u8 acpi_gbl_integer_nybble_width;
1da177e4 189
8a335a23
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190/* Reader/Writer lock is used for namespace walk and dynamic table unload */
191
192ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock;
193
967440e3
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194/*****************************************************************************
195 *
196 * Mutual exlusion within ACPICA subsystem
197 *
198 ****************************************************************************/
199
1da177e4 200/*
f3d2e786 201 * Predefined mutex objects. This array contains the
1da177e4
LT
202 * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
203 * (The table maps local handles to the real OS handles)
204 */
4c90ece2 205ACPI_EXTERN struct acpi_mutex_info acpi_gbl_mutex_info[ACPI_NUM_MUTEX];
1da177e4 206
967440e3 207/*
ba886cd4
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208 * Global lock mutex is an actual AML mutex object
209 * Global lock semaphore works in conjunction with the HW global lock
967440e3 210 */
ba886cd4 211ACPI_EXTERN union acpi_operand_object *acpi_gbl_global_lock_mutex;
967440e3 212ACPI_EXTERN acpi_semaphore acpi_gbl_global_lock_semaphore;
ba886cd4
BM
213ACPI_EXTERN u16 acpi_gbl_global_lock_handle;
214ACPI_EXTERN u8 acpi_gbl_global_lock_acquired;
215ACPI_EXTERN u8 acpi_gbl_global_lock_present;
967440e3
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216
217/*
218 * Spinlocks are used for interfaces that can be possibly called at
219 * interrupt level
220 */
221ACPI_EXTERN spinlock_t _acpi_gbl_gpe_lock; /* For GPE data structs and registers */
222ACPI_EXTERN spinlock_t _acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */
223#define acpi_gbl_gpe_lock &_acpi_gbl_gpe_lock
224#define acpi_gbl_hardware_lock &_acpi_gbl_hardware_lock
225
1da177e4
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226/*****************************************************************************
227 *
228 * Miscellaneous globals
229 *
230 ****************************************************************************/
231
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232#ifdef ACPI_DBG_TRACK_ALLOCATIONS
233
234/* Lists for tracking memory allocations */
235
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236ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list;
237ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list;
d41eb99b 238ACPI_EXTERN u8 acpi_gbl_display_final_mem_stats;
73459f73
RM
239#endif
240
241/* Object caches */
242
61686124 243ACPI_EXTERN acpi_cache_t *acpi_gbl_namespace_cache;
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244ACPI_EXTERN acpi_cache_t *acpi_gbl_state_cache;
245ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_cache;
246ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_ext_cache;
247ACPI_EXTERN acpi_cache_t *acpi_gbl_operand_cache;
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248
249/* Global handlers */
1da177e4 250
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251ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_device_notify;
252ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_system_notify;
253ACPI_EXTERN acpi_exception_handler acpi_gbl_exception_handler;
254ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler;
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LM
255ACPI_EXTERN acpi_tbl_handler acpi_gbl_table_handler;
256ACPI_EXTERN void *acpi_gbl_table_handler_context;
4be44fcd 257ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk;
1da177e4 258
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259/* Owner ID support */
260
261ACPI_EXTERN u32 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS];
262ACPI_EXTERN u8 acpi_gbl_last_owner_id_index;
263ACPI_EXTERN u8 acpi_gbl_next_owner_id_offset;
264
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265/* Misc */
266
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267ACPI_EXTERN u32 acpi_gbl_original_mode;
268ACPI_EXTERN u32 acpi_gbl_rsdp_original_location;
269ACPI_EXTERN u32 acpi_gbl_ns_lookup_count;
270ACPI_EXTERN u32 acpi_gbl_ps_find_count;
4be44fcd 271ACPI_EXTERN u16 acpi_gbl_pm1_enable_register_save;
4be44fcd 272ACPI_EXTERN u8 acpi_gbl_debugger_configuration;
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273ACPI_EXTERN u8 acpi_gbl_step_to_next_call;
274ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present;
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275ACPI_EXTERN u8 acpi_gbl_events_initialized;
276ACPI_EXTERN u8 acpi_gbl_system_awake_and_running;
7f071903 277ACPI_EXTERN u8 acpi_gbl_osi_data;
4be44fcd 278
dbaaa956
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279#ifndef DEFINE_ACPI_GLOBALS
280
281/* Other miscellaneous */
282
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283extern u8 acpi_gbl_shutdown;
284extern u32 acpi_gbl_startup_flags;
4be44fcd 285extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
15b8dd53
BM
286extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS];
287extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS];
4be44fcd
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288extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
289extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
1da177e4 290
dbaaa956
BM
291#endif
292
84fb2c97
BM
293/* Exception codes */
294
295extern char const *acpi_gbl_exception_names_env[];
296extern char const *acpi_gbl_exception_names_pgm[];
297extern char const *acpi_gbl_exception_names_tbl[];
298extern char const *acpi_gbl_exception_names_aml[];
299extern char const *acpi_gbl_exception_names_ctrl[];
300
1da177e4
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301/*****************************************************************************
302 *
303 * Namespace globals
304 *
305 ****************************************************************************/
306
1da177e4
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307#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
308#define NUM_PREDEFINED_NAMES 10
309#else
310#define NUM_PREDEFINED_NAMES 9
311#endif
312
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313ACPI_EXTERN struct acpi_namespace_node acpi_gbl_root_node_struct;
314ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_root_node;
315ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_fadt_gpe_device;
7f0c826a 316ACPI_EXTERN union acpi_operand_object *acpi_gbl_module_code_list;
1da177e4 317
b7f9f042 318extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES];
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319extern const struct acpi_predefined_names
320 acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES];
1da177e4
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321
322#ifdef ACPI_DEBUG_OUTPUT
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323ACPI_EXTERN u32 acpi_gbl_current_node_count;
324ACPI_EXTERN u32 acpi_gbl_current_node_size;
325ACPI_EXTERN u32 acpi_gbl_max_concurrent_node_count;
b7f9f042
BM
326ACPI_EXTERN acpi_size *acpi_gbl_entry_stack_pointer;
327ACPI_EXTERN acpi_size *acpi_gbl_lowest_stack_pointer;
4be44fcd 328ACPI_EXTERN u32 acpi_gbl_deepest_nesting;
1da177e4
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329#endif
330
331/*****************************************************************************
332 *
333 * Interpreter globals
334 *
335 ****************************************************************************/
336
4be44fcd 337ACPI_EXTERN struct acpi_thread_state *acpi_gbl_current_walk_list;
1da177e4
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338
339/* Control method single step flag */
340
4be44fcd 341ACPI_EXTERN u8 acpi_gbl_cm_single_step;
1da177e4 342
1da177e4
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343/*****************************************************************************
344 *
345 * Hardware globals
346 *
347 ****************************************************************************/
348
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349extern struct acpi_bit_register_info
350 acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
351ACPI_EXTERN u8 acpi_gbl_sleep_type_a;
352ACPI_EXTERN u8 acpi_gbl_sleep_type_b;
1da177e4
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353
354/*****************************************************************************
355 *
356 * Event and GPE globals
357 *
358 ****************************************************************************/
359
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360extern struct acpi_fixed_event_info
361 acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
362ACPI_EXTERN struct acpi_fixed_event_handler
363 acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS];
364ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head;
365ACPI_EXTERN struct acpi_gpe_block_info
fd350943 366*acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS];
4c90ece2 367
1da177e4
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368/*****************************************************************************
369 *
370 * Debugger globals
371 *
372 ****************************************************************************/
373
4be44fcd 374ACPI_EXTERN u8 acpi_gbl_db_output_flags;
1da177e4
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375
376#ifdef ACPI_DISASSEMBLER
377
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378ACPI_EXTERN u8 acpi_gbl_db_opt_disasm;
379ACPI_EXTERN u8 acpi_gbl_db_opt_verbose;
1da177e4
LT
380#endif
381
1da177e4
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382#ifdef ACPI_DEBUGGER
383
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384extern u8 acpi_gbl_method_executing;
385extern u8 acpi_gbl_abort_method;
386extern u8 acpi_gbl_db_terminate_threads;
387
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388ACPI_EXTERN u8 acpi_gbl_db_opt_tables;
389ACPI_EXTERN u8 acpi_gbl_db_opt_stats;
390ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods;
391
392ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS];
393ACPI_EXTERN char acpi_gbl_db_line_buf[80];
394ACPI_EXTERN char acpi_gbl_db_parsed_buf[80];
395ACPI_EXTERN char acpi_gbl_db_scope_buf[40];
396ACPI_EXTERN char acpi_gbl_db_debug_filename[40];
397ACPI_EXTERN u8 acpi_gbl_db_output_to_file;
398ACPI_EXTERN char *acpi_gbl_db_buffer;
399ACPI_EXTERN char *acpi_gbl_db_filename;
400ACPI_EXTERN u32 acpi_gbl_db_debug_level;
401ACPI_EXTERN u32 acpi_gbl_db_console_debug_level;
4be44fcd 402ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node;
1da177e4
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403
404/*
405 * Statistic globals
406 */
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LB
407ACPI_EXTERN u16 acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1];
408ACPI_EXTERN u16 acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1];
409ACPI_EXTERN u16 acpi_gbl_obj_type_count_misc;
410ACPI_EXTERN u16 acpi_gbl_node_type_count_misc;
411ACPI_EXTERN u32 acpi_gbl_num_nodes;
412ACPI_EXTERN u32 acpi_gbl_num_objects;
1da177e4 413
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414ACPI_EXTERN u32 acpi_gbl_size_of_parse_tree;
415ACPI_EXTERN u32 acpi_gbl_size_of_method_trees;
416ACPI_EXTERN u32 acpi_gbl_size_of_node_entries;
417ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects;
1da177e4 418
4be44fcd 419#endif /* ACPI_DEBUGGER */
1da177e4 420
4be44fcd 421#endif /* __ACGLOBAL_H__ */