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1/******************************************************************************
2 *
3 * Name: acglobal.h - Declarations for global variables
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2008, 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#ifndef __ACGLOBAL_H__
45#define __ACGLOBAL_H__
46
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
61/*****************************************************************************
62 *
63 * Runtime configuration (static defaults that can be overriden at runtime)
64 *
65 ****************************************************************************/
66
67/*
68 * Enable "slack" in the AML interpreter? Default is FALSE, and the
69 * interpreter strictly follows the ACPI specification. Setting to TRUE
70 * allows the interpreter to ignore certain errors and/or bad AML constructs.
71 *
72 * Currently, these features are enabled by this flag:
73 *
74 * 1) Allow "implicit return" of last value in a control method
75 * 2) Allow access beyond the end of an operation region
76 * 3) Allow access to uninitialized locals/args (auto-init to integer 0)
77 * 4) Allow ANY object type to be a source operand for the Store() operator
78 * 5) Allow unresolved references (invalid target name) in package objects
79 * 6) Enable warning messages for behavior that is not ACPI spec compliant
80 */
81ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE);
82
83/*
84 * Automatically serialize ALL control methods? Default is FALSE, meaning
85 * to use the Serialized/not_serialized method flags on a per method basis.
86 * Only change this if the ASL code is poorly written and cannot handle
87 * reentrancy even though methods are marked "NotSerialized".
88 */
89ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_all_methods_serialized, FALSE);
90
91/*
92 * Create the predefined _OSI method in the namespace? Default is TRUE
93 * because ACPI CA is fully compatible with other ACPI implementations.
94 * Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior.
95 */
96ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_create_osi_method, TRUE);
97
98/*
99 * Disable wakeup GPEs during runtime? Default is TRUE because WAKE and
100 * RUNTIME GPEs should never be shared, and WAKE GPEs should typically only
101 * be enabled just before going to sleep.
102 */
103ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_leave_wake_gpes_disabled, TRUE);
104
105/*****************************************************************************
106 *
107 * Debug support
108 *
109 ****************************************************************************/
110
111/* Runtime configuration of debug print levels */
112
113extern u32 acpi_dbg_level;
114extern u32 acpi_dbg_layer;
115
116/* Procedure nesting level for debug output */
117
118extern u32 acpi_gbl_nesting_level;
119
120/* Support for dynamic control method tracing mechanism */
121
122ACPI_EXTERN u32 acpi_gbl_original_dbg_level;
123ACPI_EXTERN u32 acpi_gbl_original_dbg_layer;
124ACPI_EXTERN acpi_name acpi_gbl_trace_method_name;
125ACPI_EXTERN u32 acpi_gbl_trace_dbg_level;
126ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer;
127ACPI_EXTERN u32 acpi_gbl_trace_flags;
128
129/*****************************************************************************
130 *
131 * ACPI Table globals
132 *
133 ****************************************************************************/
134
135/*
136 * acpi_gbl_root_table_list is the master list of ACPI tables found in the
137 * RSDT/XSDT.
138 *
139 * acpi_gbl_FADT is a local copy of the FADT, converted to a common format.
140 */
141ACPI_EXTERN struct acpi_internal_rsdt acpi_gbl_root_table_list;
142ACPI_EXTERN struct acpi_table_fadt acpi_gbl_FADT;
143extern u8 acpi_gbl_permanent_mmap;
144
145/* These addresses are calculated from FADT address values */
146
147ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_enable;
148ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_enable;
149
150/*
151 * Handle both ACPI 1.0 and ACPI 2.0 Integer widths. The integer width is
152 * determined by the revision of the DSDT: If the DSDT revision is less than
153 * 2, use only the lower 32 bits of the internal 64-bit Integer.
154 */
155ACPI_EXTERN u8 acpi_gbl_integer_bit_width;
156ACPI_EXTERN u8 acpi_gbl_integer_byte_width;
157ACPI_EXTERN u8 acpi_gbl_integer_nybble_width;
158
159/*****************************************************************************
160 *
161 * Mutual exlusion within ACPICA subsystem
162 *
163 ****************************************************************************/
164
165/*
166 * Predefined mutex objects. This array contains the
167 * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
168 * (The table maps local handles to the real OS handles)
169 */
170ACPI_EXTERN struct acpi_mutex_info acpi_gbl_mutex_info[ACPI_NUM_MUTEX];
171
172/*
173 * Global lock mutex is an actual AML mutex object
174 * Global lock semaphore works in conjunction with the HW global lock
175 */
176ACPI_EXTERN union acpi_operand_object *acpi_gbl_global_lock_mutex;
177ACPI_EXTERN acpi_semaphore acpi_gbl_global_lock_semaphore;
178ACPI_EXTERN u16 acpi_gbl_global_lock_handle;
179ACPI_EXTERN u8 acpi_gbl_global_lock_acquired;
180ACPI_EXTERN u8 acpi_gbl_global_lock_present;
181
182/*
183 * Spinlocks are used for interfaces that can be possibly called at
184 * interrupt level
185 */
186ACPI_EXTERN spinlock_t _acpi_gbl_gpe_lock; /* For GPE data structs and registers */
187ACPI_EXTERN spinlock_t _acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */
188#define acpi_gbl_gpe_lock &_acpi_gbl_gpe_lock
189#define acpi_gbl_hardware_lock &_acpi_gbl_hardware_lock
190
191/*****************************************************************************
192 *
193 * Miscellaneous globals
194 *
195 ****************************************************************************/
196
197#ifdef ACPI_DBG_TRACK_ALLOCATIONS
198
199/* Lists for tracking memory allocations */
200
201ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list;
202ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list;
203ACPI_EXTERN u8 acpi_gbl_display_final_mem_stats;
204#endif
205
206/* Object caches */
207
208ACPI_EXTERN acpi_cache_t *acpi_gbl_namespace_cache;
209ACPI_EXTERN acpi_cache_t *acpi_gbl_state_cache;
210ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_cache;
211ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_ext_cache;
212ACPI_EXTERN acpi_cache_t *acpi_gbl_operand_cache;
213
214/* Global handlers */
215
216ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_device_notify;
217ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_system_notify;
218ACPI_EXTERN acpi_exception_handler acpi_gbl_exception_handler;
219ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler;
220ACPI_EXTERN acpi_tbl_handler acpi_gbl_table_handler;
221ACPI_EXTERN void *acpi_gbl_table_handler_context;
222ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk;
223
224/* Owner ID support */
225
226ACPI_EXTERN u32 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS];
227ACPI_EXTERN u8 acpi_gbl_last_owner_id_index;
228ACPI_EXTERN u8 acpi_gbl_next_owner_id_offset;
229
230/* Misc */
231
232ACPI_EXTERN u32 acpi_gbl_original_mode;
233ACPI_EXTERN u32 acpi_gbl_rsdp_original_location;
234ACPI_EXTERN u32 acpi_gbl_ns_lookup_count;
235ACPI_EXTERN u32 acpi_gbl_ps_find_count;
236ACPI_EXTERN u16 acpi_gbl_pm1_enable_register_save;
237ACPI_EXTERN u8 acpi_gbl_debugger_configuration;
238ACPI_EXTERN u8 acpi_gbl_step_to_next_call;
239ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present;
240ACPI_EXTERN u8 acpi_gbl_events_initialized;
241ACPI_EXTERN u8 acpi_gbl_system_awake_and_running;
242
243#ifndef DEFINE_ACPI_GLOBALS
244
245/* Other miscellaneous */
246
247extern u8 acpi_gbl_shutdown;
248extern u32 acpi_gbl_startup_flags;
249extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
250extern const char *acpi_gbl_highest_dstate_names[4];
251extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
252extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
253
254#endif
255
256/* Exception codes */
257
258extern char const *acpi_gbl_exception_names_env[];
259extern char const *acpi_gbl_exception_names_pgm[];
260extern char const *acpi_gbl_exception_names_tbl[];
261extern char const *acpi_gbl_exception_names_aml[];
262extern char const *acpi_gbl_exception_names_ctrl[];
263
264/*****************************************************************************
265 *
266 * Namespace globals
267 *
268 ****************************************************************************/
269
270#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
271#define NUM_PREDEFINED_NAMES 10
272#else
273#define NUM_PREDEFINED_NAMES 9
274#endif
275
276ACPI_EXTERN struct acpi_namespace_node acpi_gbl_root_node_struct;
277ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_root_node;
278ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_fadt_gpe_device;
279
280extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES];
281extern const struct acpi_predefined_names
282 acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES];
283
284#ifdef ACPI_DEBUG_OUTPUT
285ACPI_EXTERN u32 acpi_gbl_current_node_count;
286ACPI_EXTERN u32 acpi_gbl_current_node_size;
287ACPI_EXTERN u32 acpi_gbl_max_concurrent_node_count;
288ACPI_EXTERN acpi_size *acpi_gbl_entry_stack_pointer;
289ACPI_EXTERN acpi_size *acpi_gbl_lowest_stack_pointer;
290ACPI_EXTERN u32 acpi_gbl_deepest_nesting;
291#endif
292
293/*****************************************************************************
294 *
295 * Interpreter globals
296 *
297 ****************************************************************************/
298
299ACPI_EXTERN struct acpi_thread_state *acpi_gbl_current_walk_list;
300
301/* Control method single step flag */
302
303ACPI_EXTERN u8 acpi_gbl_cm_single_step;
304
305/*****************************************************************************
306 *
307 * Hardware globals
308 *
309 ****************************************************************************/
310
311extern struct acpi_bit_register_info
312 acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
313ACPI_EXTERN u8 acpi_gbl_sleep_type_a;
314ACPI_EXTERN u8 acpi_gbl_sleep_type_b;
315
316/*****************************************************************************
317 *
318 * Event and GPE globals
319 *
320 ****************************************************************************/
321
322extern struct acpi_fixed_event_info
323 acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
324ACPI_EXTERN struct acpi_fixed_event_handler
325 acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS];
326ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head;
327ACPI_EXTERN struct acpi_gpe_block_info
328*acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS];
329
330/*****************************************************************************
331 *
332 * Debugger globals
333 *
334 ****************************************************************************/
335
336ACPI_EXTERN u8 acpi_gbl_db_output_flags;
337
338#ifdef ACPI_DISASSEMBLER
339
340ACPI_EXTERN u8 acpi_gbl_db_opt_disasm;
341ACPI_EXTERN u8 acpi_gbl_db_opt_verbose;
342#endif
343
344#ifdef ACPI_DEBUGGER
345
346extern u8 acpi_gbl_method_executing;
347extern u8 acpi_gbl_abort_method;
348extern u8 acpi_gbl_db_terminate_threads;
349
350ACPI_EXTERN int optind;
351ACPI_EXTERN char *optarg;
352
353ACPI_EXTERN u8 acpi_gbl_db_opt_tables;
354ACPI_EXTERN u8 acpi_gbl_db_opt_stats;
355ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods;
356
357ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS];
358ACPI_EXTERN char acpi_gbl_db_line_buf[80];
359ACPI_EXTERN char acpi_gbl_db_parsed_buf[80];
360ACPI_EXTERN char acpi_gbl_db_scope_buf[40];
361ACPI_EXTERN char acpi_gbl_db_debug_filename[40];
362ACPI_EXTERN u8 acpi_gbl_db_output_to_file;
363ACPI_EXTERN char *acpi_gbl_db_buffer;
364ACPI_EXTERN char *acpi_gbl_db_filename;
365ACPI_EXTERN u32 acpi_gbl_db_debug_level;
366ACPI_EXTERN u32 acpi_gbl_db_console_debug_level;
367ACPI_EXTERN struct acpi_table_header *acpi_gbl_db_table_ptr;
368ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node;
369
370/*
371 * Statistic globals
372 */
373ACPI_EXTERN u16 acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1];
374ACPI_EXTERN u16 acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1];
375ACPI_EXTERN u16 acpi_gbl_obj_type_count_misc;
376ACPI_EXTERN u16 acpi_gbl_node_type_count_misc;
377ACPI_EXTERN u32 acpi_gbl_num_nodes;
378ACPI_EXTERN u32 acpi_gbl_num_objects;
379
380ACPI_EXTERN u32 acpi_gbl_size_of_parse_tree;
381ACPI_EXTERN u32 acpi_gbl_size_of_method_trees;
382ACPI_EXTERN u32 acpi_gbl_size_of_node_entries;
383ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects;
384
385#endif /* ACPI_DEBUGGER */
386
387#endif /* __ACGLOBAL_H__ */