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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/******************************************************************************
2 *
3 * Name: acglobal.h - Declarations for global variables
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2005, R. Byron Moore
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070047/*
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 * Keep local copies of these FADT-based registers. NOTE: These globals
63 * are first in this file for alignment reasons on 64-bit systems.
64 */
Len Brown4be44fc2005-08-05 00:44:28 -040065ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_enable;
66ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_enable;
Linus Torvalds1da177e2005-04-16 15:20:36 -070067
68/*****************************************************************************
69 *
70 * Debug support
71 *
72 ****************************************************************************/
73
74/* Runtime configuration of debug print levels */
75
Len Brown4be44fc2005-08-05 00:44:28 -040076extern u32 acpi_dbg_level;
77extern u32 acpi_dbg_layer;
Linus Torvalds1da177e2005-04-16 15:20:36 -070078
79/* Procedure nesting level for debug output */
80
Len Brown4be44fc2005-08-05 00:44:28 -040081extern u32 acpi_gbl_nesting_level;
Linus Torvalds1da177e2005-04-16 15:20:36 -070082
83/*****************************************************************************
84 *
85 * Runtime configuration (static defaults that can be overriden at runtime)
86 *
87 ****************************************************************************/
88
89/*
90 * Enable "slack" in the AML interpreter? Default is FALSE, and the
91 * interpreter strictly follows the ACPI specification. Setting to TRUE
92 * allows the interpreter to forgive certain bad AML constructs. Currently:
93 * 1) Allow "implicit return" of last value in a control method
94 * 2) Allow access beyond end of operation region
95 * 3) Allow access to uninitialized locals/args (auto-init to integer 0)
96 * 4) Allow ANY object type to be a source operand for the Store() operator
97 */
Len Brown4be44fc2005-08-05 00:44:28 -040098ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE);
Linus Torvalds1da177e2005-04-16 15:20:36 -070099
100/*
101 * Automatically serialize ALL control methods? Default is FALSE, meaning
102 * to use the Serialized/not_serialized method flags on a per method basis.
103 * Only change this if the ASL code is poorly written and cannot handle
104 * reentrancy even though methods are marked "not_serialized".
105 */
Len Brown4be44fc2005-08-05 00:44:28 -0400106ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_all_methods_serialized, FALSE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
108/*
109 * Create the predefined _OSI method in the namespace? Default is TRUE
110 * because ACPI CA is fully compatible with other ACPI implementations.
111 * Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior.
112 */
Len Brown4be44fc2005-08-05 00:44:28 -0400113ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_create_osi_method, TRUE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114
115/*
116 * Disable wakeup GPEs during runtime? Default is TRUE because WAKE and
117 * RUNTIME GPEs should never be shared, and WAKE GPEs should typically only
118 * be enabled just before going to sleep.
119 */
Len Brown4be44fc2005-08-05 00:44:28 -0400120ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_leave_wake_gpes_disabled, TRUE);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121
122/*****************************************************************************
123 *
124 * ACPI Table globals
125 *
126 ****************************************************************************/
127
128/*
129 * Table pointers.
130 * Although these pointers are somewhat redundant with the global acpi_table,
131 * they are convenient because they are typed pointers.
132 *
133 * These tables are single-table only; meaning that there can be at most one
134 * of each in the system. Each global points to the actual table.
135 */
Len Brown4be44fc2005-08-05 00:44:28 -0400136ACPI_EXTERN u32 acpi_gbl_table_flags;
137ACPI_EXTERN u32 acpi_gbl_rsdt_table_count;
138ACPI_EXTERN struct rsdp_descriptor *acpi_gbl_RSDP;
139ACPI_EXTERN XSDT_DESCRIPTOR *acpi_gbl_XSDT;
140ACPI_EXTERN FADT_DESCRIPTOR *acpi_gbl_FADT;
141ACPI_EXTERN struct acpi_table_header *acpi_gbl_DSDT;
142ACPI_EXTERN FACS_DESCRIPTOR *acpi_gbl_FACS;
143ACPI_EXTERN struct acpi_common_facs acpi_gbl_common_fACS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144/*
Robert Moore44f6c012005-04-18 22:49:35 -0400145 * Since there may be multiple SSDTs and PSDTs, a single pointer is not
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 * sufficient; Therefore, there isn't one!
147 */
148
Robert Moore73459f72005-06-24 00:00:00 -0400149/* The root table can be either an RSDT or an XSDT */
150
Len Brown4be44fc2005-08-05 00:44:28 -0400151ACPI_EXTERN u8 acpi_gbl_root_table_type;
Robert Moore73459f72005-06-24 00:00:00 -0400152#define ACPI_TABLE_TYPE_RSDT 'R'
153#define ACPI_TABLE_TYPE_XSDT 'X'
154
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155/*
Robert Moore44f6c012005-04-18 22:49:35 -0400156 * Handle both ACPI 1.0 and ACPI 2.0 Integer widths:
157 * If we are executing a method that exists in a 32-bit ACPI table,
158 * use only the lower 32 bits of the (internal) 64-bit Integer.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 */
Len Brown4be44fc2005-08-05 00:44:28 -0400160ACPI_EXTERN u8 acpi_gbl_integer_bit_width;
161ACPI_EXTERN u8 acpi_gbl_integer_byte_width;
162ACPI_EXTERN u8 acpi_gbl_integer_nybble_width;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163
164/*
165 * ACPI Table info arrays
166 */
Len Brown4be44fc2005-08-05 00:44:28 -0400167extern struct acpi_table_list acpi_gbl_table_lists[NUM_ACPI_TABLE_TYPES];
168extern struct acpi_table_support acpi_gbl_table_data[NUM_ACPI_TABLE_TYPES];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169
170/*
171 * Predefined mutex objects. This array contains the
172 * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
173 * (The table maps local handles to the real OS handles)
174 */
Len Brown4be44fc2005-08-05 00:44:28 -0400175ACPI_EXTERN struct acpi_mutex_info acpi_gbl_mutex_info[NUM_MUTEX];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176
177/*****************************************************************************
178 *
179 * Miscellaneous globals
180 *
181 ****************************************************************************/
182
Robert Moore73459f72005-06-24 00:00:00 -0400183#ifdef ACPI_DBG_TRACK_ALLOCATIONS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184
Robert Moore73459f72005-06-24 00:00:00 -0400185/* Lists for tracking memory allocations */
186
Len Brown4be44fc2005-08-05 00:44:28 -0400187ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list;
188ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list;
Robert Moore73459f72005-06-24 00:00:00 -0400189#endif
190
191/* Object caches */
192
Len Brown4be44fc2005-08-05 00:44:28 -0400193ACPI_EXTERN acpi_cache_t *acpi_gbl_state_cache;
194ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_cache;
195ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_ext_cache;
196ACPI_EXTERN acpi_cache_t *acpi_gbl_operand_cache;
Robert Moore73459f72005-06-24 00:00:00 -0400197
198/* Global handlers */
199
Len Brown4be44fc2005-08-05 00:44:28 -0400200ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_device_notify;
201ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_system_notify;
202ACPI_EXTERN acpi_exception_handler acpi_gbl_exception_handler;
203ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler;
204ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk;
205ACPI_EXTERN acpi_handle acpi_gbl_global_lock_semaphore;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206
Robert Moore73459f72005-06-24 00:00:00 -0400207/* Misc */
208
Len Brown4be44fc2005-08-05 00:44:28 -0400209ACPI_EXTERN u32 acpi_gbl_global_lock_thread_count;
210ACPI_EXTERN u32 acpi_gbl_original_mode;
211ACPI_EXTERN u32 acpi_gbl_rsdp_original_location;
212ACPI_EXTERN u32 acpi_gbl_ns_lookup_count;
213ACPI_EXTERN u32 acpi_gbl_ps_find_count;
214ACPI_EXTERN u32 acpi_gbl_owner_id_mask;
215ACPI_EXTERN u16 acpi_gbl_pm1_enable_register_save;
216ACPI_EXTERN u16 acpi_gbl_global_lock_handle;
217ACPI_EXTERN u8 acpi_gbl_debugger_configuration;
218ACPI_EXTERN u8 acpi_gbl_global_lock_acquired;
219ACPI_EXTERN u8 acpi_gbl_step_to_next_call;
220ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present;
221ACPI_EXTERN u8 acpi_gbl_global_lock_present;
222ACPI_EXTERN u8 acpi_gbl_events_initialized;
223ACPI_EXTERN u8 acpi_gbl_system_awake_and_running;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224
Len Brown4be44fc2005-08-05 00:44:28 -0400225extern u8 acpi_gbl_shutdown;
226extern u32 acpi_gbl_startup_flags;
227extern const u8 acpi_gbl_decode_to8bit[8];
228extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
229extern const char *acpi_gbl_highest_dstate_names[4];
230extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
231extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
232extern const char *acpi_gbl_valid_osi_strings[ACPI_NUM_OSI_STRINGS];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233
234/*****************************************************************************
235 *
236 * Namespace globals
237 *
238 ****************************************************************************/
239
240#define NUM_NS_TYPES ACPI_TYPE_INVALID+1
241
242#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
243#define NUM_PREDEFINED_NAMES 10
244#else
245#define NUM_PREDEFINED_NAMES 9
246#endif
247
Len Brown4be44fc2005-08-05 00:44:28 -0400248ACPI_EXTERN struct acpi_namespace_node acpi_gbl_root_node_struct;
249ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_root_node;
250ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_fadt_gpe_device;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251
Len Brown4be44fc2005-08-05 00:44:28 -0400252extern const u8 acpi_gbl_ns_properties[NUM_NS_TYPES];
253extern const struct acpi_predefined_names
254 acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255
256#ifdef ACPI_DEBUG_OUTPUT
Len Brown4be44fc2005-08-05 00:44:28 -0400257ACPI_EXTERN u32 acpi_gbl_current_node_count;
258ACPI_EXTERN u32 acpi_gbl_current_node_size;
259ACPI_EXTERN u32 acpi_gbl_max_concurrent_node_count;
260ACPI_EXTERN acpi_size acpi_gbl_entry_stack_pointer;
261ACPI_EXTERN acpi_size acpi_gbl_lowest_stack_pointer;
262ACPI_EXTERN u32 acpi_gbl_deepest_nesting;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263#endif
264
265/*****************************************************************************
266 *
267 * Interpreter globals
268 *
269 ****************************************************************************/
270
Len Brown4be44fc2005-08-05 00:44:28 -0400271ACPI_EXTERN struct acpi_thread_state *acpi_gbl_current_walk_list;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272
273/* Control method single step flag */
274
Len Brown4be44fc2005-08-05 00:44:28 -0400275ACPI_EXTERN u8 acpi_gbl_cm_single_step;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276
277/*****************************************************************************
278 *
279 * Parser globals
280 *
281 ****************************************************************************/
282
Len Brown4be44fc2005-08-05 00:44:28 -0400283ACPI_EXTERN union acpi_parse_object *acpi_gbl_parsed_namespace_root;
Robert Moore44f6c012005-04-18 22:49:35 -0400284
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285/*****************************************************************************
286 *
287 * Hardware globals
288 *
289 ****************************************************************************/
290
Len Brown4be44fc2005-08-05 00:44:28 -0400291extern struct acpi_bit_register_info
292 acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
293ACPI_EXTERN u8 acpi_gbl_sleep_type_a;
294ACPI_EXTERN u8 acpi_gbl_sleep_type_b;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295
296/*****************************************************************************
297 *
298 * Event and GPE globals
299 *
300 ****************************************************************************/
301
Len Brown4be44fc2005-08-05 00:44:28 -0400302extern struct acpi_fixed_event_info
303 acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
304ACPI_EXTERN struct acpi_fixed_event_handler
305 acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS];
306ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head;
307ACPI_EXTERN struct acpi_gpe_block_info
308 *acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS];
309ACPI_EXTERN acpi_handle acpi_gbl_gpe_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310
311/*****************************************************************************
312 *
313 * Debugger globals
314 *
315 ****************************************************************************/
316
Len Brown4be44fc2005-08-05 00:44:28 -0400317ACPI_EXTERN u8 acpi_gbl_db_output_flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318
319#ifdef ACPI_DISASSEMBLER
320
Len Brown4be44fc2005-08-05 00:44:28 -0400321ACPI_EXTERN u8 acpi_gbl_db_opt_disasm;
322ACPI_EXTERN u8 acpi_gbl_db_opt_verbose;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323#endif
324
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325#ifdef ACPI_DEBUGGER
326
Len Brown4be44fc2005-08-05 00:44:28 -0400327extern u8 acpi_gbl_method_executing;
328extern u8 acpi_gbl_abort_method;
329extern u8 acpi_gbl_db_terminate_threads;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700330
Len Brown4be44fc2005-08-05 00:44:28 -0400331ACPI_EXTERN int optind;
332ACPI_EXTERN char *optarg;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333
Len Brown4be44fc2005-08-05 00:44:28 -0400334ACPI_EXTERN u8 acpi_gbl_db_opt_tables;
335ACPI_EXTERN u8 acpi_gbl_db_opt_stats;
336ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337
Len Brown4be44fc2005-08-05 00:44:28 -0400338ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS];
339ACPI_EXTERN char acpi_gbl_db_line_buf[80];
340ACPI_EXTERN char acpi_gbl_db_parsed_buf[80];
341ACPI_EXTERN char acpi_gbl_db_scope_buf[40];
342ACPI_EXTERN char acpi_gbl_db_debug_filename[40];
343ACPI_EXTERN u8 acpi_gbl_db_output_to_file;
344ACPI_EXTERN char *acpi_gbl_db_buffer;
345ACPI_EXTERN char *acpi_gbl_db_filename;
346ACPI_EXTERN u32 acpi_gbl_db_debug_level;
347ACPI_EXTERN u32 acpi_gbl_db_console_debug_level;
348ACPI_EXTERN struct acpi_table_header *acpi_gbl_db_table_ptr;
349ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350
351/*
352 * Statistic globals
353 */
Len Brown4be44fc2005-08-05 00:44:28 -0400354ACPI_EXTERN u16 acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1];
355ACPI_EXTERN u16 acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1];
356ACPI_EXTERN u16 acpi_gbl_obj_type_count_misc;
357ACPI_EXTERN u16 acpi_gbl_node_type_count_misc;
358ACPI_EXTERN u32 acpi_gbl_num_nodes;
359ACPI_EXTERN u32 acpi_gbl_num_objects;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360
Len Brown4be44fc2005-08-05 00:44:28 -0400361ACPI_EXTERN u32 acpi_gbl_size_of_parse_tree;
362ACPI_EXTERN u32 acpi_gbl_size_of_method_trees;
363ACPI_EXTERN u32 acpi_gbl_size_of_node_entries;
364ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365
Len Brown4be44fc2005-08-05 00:44:28 -0400366#endif /* ACPI_DEBUGGER */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367
Len Brown4be44fc2005-08-05 00:44:28 -0400368#endif /* __ACGLOBAL_H__ */