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acglobal.h
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1 /******************************************************************************
2  *
3  * Name: acglobal.h - Declarations for global variables
4  *
5  *****************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2012, 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
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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 #ifdef DEFINE_ACPI_GLOBALS
62 
63 /* Public globals, available from outside ACPICA subsystem */
64 
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
74  * allows the interpreter to ignore certain errors and/or bad AML constructs.
75  *
76  * Currently, these features are enabled by this flag:
77  *
78  * 1) Allow "implicit return" of last value in a control method
79  * 2) Allow access beyond the end of an operation region
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
82  * 5) Allow unresolved references (invalid target name) in package objects
83  * 6) Enable warning messages for behavior that is not ACPI spec compliant
84  */
85 u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE);
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
91  * reentrancy even though methods are marked "NotSerialized".
92  */
93 u8 ACPI_INIT_GLOBAL(acpi_gbl_all_methods_serialized, FALSE);
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  */
100 u8 ACPI_INIT_GLOBAL(acpi_gbl_create_osi_method, TRUE);
101 
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  */
106 u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE);
107 
108 /*
109  * Optionally enable output from the AML Debug Object.
110  */
111 bool ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE);
112 
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  */
119 u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE);
120 
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  */
127 u8 ACPI_INIT_GLOBAL(acpi_gbl_truncate_io_addresses, FALSE);
128 
129 /*
130  * Disable runtime checking and repair of values returned by control methods.
131  * Use only if the repair is causing a problem on a particular machine.
132  */
133 u8 ACPI_INIT_GLOBAL(acpi_gbl_disable_auto_repair, FALSE);
134 
135 /* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */
136 
142 
143 /*
144  * ACPI 5.0 introduces the concept of a "reduced hardware platform", meaning
145  * that the ACPI hardware is no longer required. A flag in the FADT indicates
146  * a reduced HW machine, and that flag is duplicated here for convenience.
147  */
149 
150 #endif /* DEFINE_ACPI_GLOBALS */
151 
152 /* Do not disassemble buffers to resource descriptors */
153 
154 ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_no_resource_disassembly, FALSE);
155 
156 /*****************************************************************************
157  *
158  * Debug support
159  *
160  ****************************************************************************/
161 
162 /* Procedure nesting level for debug output */
163 
165 
168 
169 /* Support for dynamic control method tracing mechanism */
170 
175 
176 /*****************************************************************************
177  *
178  * ACPI Table globals
179  *
180  ****************************************************************************/
181 
182 /*
183  * acpi_gbl_root_table_list is the master list of ACPI tables that were
184  * found in the RSDT/XSDT.
185  */
187 
188 #if (!ACPI_REDUCED_HARDWARE)
190 
191 #endif /* !ACPI_REDUCED_HARDWARE */
192 
193 /* These addresses are calculated from the FADT Event Block addresses */
194 
197 
200 
201 /* DSDT information. Used to check for DSDT corruption */
202 
205 
206 /*
207  * Handle both ACPI 1.0 and ACPI 2.0 Integer widths. The integer width is
208  * determined by the revision of the DSDT: If the DSDT revision is less than
209  * 2, use only the lower 32 bits of the internal 64-bit Integer.
210  */
214 
215 /* Mutex for _OSI support */
216 
218 
219 /* Reader/Writer lock is used for namespace walk and dynamic table unload */
220 
222 
223 /*****************************************************************************
224  *
225  * Mutual exclusion within ACPICA subsystem
226  *
227  ****************************************************************************/
228 
229 /*
230  * Predefined mutex objects. This array contains the
231  * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
232  * (The table maps local handles to the real OS handles)
233  */
235 
236 /*
237  * Global lock mutex is an actual AML mutex object
238  * Global lock semaphore works in conjunction with the actual global lock
239  * Global lock spinlock is used for "pending" handshake
240  */
248 
249 /*
250  * Spinlocks are used for interfaces that can be possibly called at
251  * interrupt level
252  */
253 ACPI_EXTERN acpi_spinlock acpi_gbl_gpe_lock; /* For GPE data structs and registers */
254 ACPI_EXTERN acpi_spinlock acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */
255 
256 /*****************************************************************************
257  *
258  * Miscellaneous globals
259  *
260  ****************************************************************************/
261 
262 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
263 
264 /* Lists for tracking memory allocations */
265 
266 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list;
267 ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list;
268 ACPI_EXTERN u8 acpi_gbl_display_final_mem_stats;
269 #endif
270 
271 /* Object caches */
272 
278 
279 /* Global handlers */
280 
288 
289 /* Owner ID support */
290 
294 
295 /* Initialization sequencing */
296 
298 
299 /* Misc */
300 
314 
315 #ifndef DEFINE_ACPI_GLOBALS
316 
317 /* Other miscellaneous */
318 
319 extern u8 acpi_gbl_shutdown;
326 
327 #endif
328 
329 /*****************************************************************************
330  *
331  * Namespace globals
332  *
333  ****************************************************************************/
334 
335 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
336 #define NUM_PREDEFINED_NAMES 10
337 #else
338 #define NUM_PREDEFINED_NAMES 9
339 #endif
340 
345 
347 extern const struct acpi_predefined_names
349 
350 #ifdef ACPI_DEBUG_OUTPUT
351 ACPI_EXTERN u32 acpi_gbl_current_node_count;
352 ACPI_EXTERN u32 acpi_gbl_current_node_size;
353 ACPI_EXTERN u32 acpi_gbl_max_concurrent_node_count;
354 ACPI_EXTERN acpi_size *acpi_gbl_entry_stack_pointer;
355 ACPI_EXTERN acpi_size *acpi_gbl_lowest_stack_pointer;
356 ACPI_EXTERN u32 acpi_gbl_deepest_nesting;
357 #endif
358 
359 /*****************************************************************************
360  *
361  * Interpreter globals
362  *
363  ****************************************************************************/
364 
366 
367 /* Control method single step flag */
368 
370 
371 /*****************************************************************************
372  *
373  * Hardware globals
374  *
375  ****************************************************************************/
376 
377 extern struct acpi_bit_register_info
381 
382 /*****************************************************************************
383  *
384  * Event and GPE globals
385  *
386  ****************************************************************************/
387 
388 extern struct acpi_fixed_event_info
395 
396 #if (!ACPI_REDUCED_HARDWARE)
397 
401 
402 #endif /* !ACPI_REDUCED_HARDWARE */
403 
404 /*****************************************************************************
405  *
406  * Debugger globals
407  *
408  ****************************************************************************/
409 
411 
412 #ifdef ACPI_DISASSEMBLER
413 
414 ACPI_EXTERN u8 acpi_gbl_db_opt_disasm;
415 ACPI_EXTERN u8 acpi_gbl_db_opt_verbose;
416 #endif
417 
418 #ifdef ACPI_DEBUGGER
419 
423 
424 ACPI_EXTERN u8 acpi_gbl_db_opt_tables;
425 ACPI_EXTERN u8 acpi_gbl_db_opt_stats;
426 ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods;
427 
428 ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS];
429 ACPI_EXTERN char acpi_gbl_db_line_buf[80];
430 ACPI_EXTERN char acpi_gbl_db_parsed_buf[80];
431 ACPI_EXTERN char acpi_gbl_db_scope_buf[40];
432 ACPI_EXTERN char acpi_gbl_db_debug_filename[40];
433 ACPI_EXTERN u8 acpi_gbl_db_output_to_file;
434 ACPI_EXTERN char *acpi_gbl_db_buffer;
435 ACPI_EXTERN char *acpi_gbl_db_filename;
436 ACPI_EXTERN u32 acpi_gbl_db_debug_level;
437 ACPI_EXTERN u32 acpi_gbl_db_console_debug_level;
438 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node;
439 
440 /*
441  * Statistic globals
442  */
443 ACPI_EXTERN u16 acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1];
444 ACPI_EXTERN u16 acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1];
445 ACPI_EXTERN u16 acpi_gbl_obj_type_count_misc;
446 ACPI_EXTERN u16 acpi_gbl_node_type_count_misc;
447 ACPI_EXTERN u32 acpi_gbl_num_nodes;
448 ACPI_EXTERN u32 acpi_gbl_num_objects;
449 
450 ACPI_EXTERN u32 acpi_gbl_size_of_parse_tree;
451 ACPI_EXTERN u32 acpi_gbl_size_of_method_trees;
452 ACPI_EXTERN u32 acpi_gbl_size_of_node_entries;
453 ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects;
454 
455 #endif /* ACPI_DEBUGGER */
456 
457 /*****************************************************************************
458  *
459  * Info/help support
460  *
461  ****************************************************************************/
462 
463 extern const struct ah_predefined_name asl_predefined_info[];
464 
465 #endif /* __ACGLOBAL_H__ */