xref: /openbmc/linux/drivers/acpi/acpica/acglobal.h (revision 0a73d21e)
1 /******************************************************************************
2  *
3  * Name: acglobal.h - Declarations for global variables
4  *
5  *****************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2018, 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  *
49  * Globals related to the incoming ACPI tables
50  *
51  ****************************************************************************/
52 
53 /* Master list of all ACPI tables that were found in the RSDT/XSDT */
54 
55 ACPI_GLOBAL(struct acpi_table_list, acpi_gbl_root_table_list);
56 
57 /* DSDT information. Used to check for DSDT corruption */
58 
59 ACPI_GLOBAL(struct acpi_table_header *, acpi_gbl_DSDT);
60 ACPI_GLOBAL(struct acpi_table_header, acpi_gbl_original_dsdt_header);
61 ACPI_INIT_GLOBAL(u32, acpi_gbl_dsdt_index, ACPI_INVALID_TABLE_INDEX);
62 ACPI_INIT_GLOBAL(u32, acpi_gbl_facs_index, ACPI_INVALID_TABLE_INDEX);
63 ACPI_INIT_GLOBAL(u32, acpi_gbl_xfacs_index, ACPI_INVALID_TABLE_INDEX);
64 ACPI_INIT_GLOBAL(u32, acpi_gbl_fadt_index, ACPI_INVALID_TABLE_INDEX);
65 
66 #if (!ACPI_REDUCED_HARDWARE)
67 ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS);
68 
69 #endif				/* !ACPI_REDUCED_HARDWARE */
70 
71 /* These addresses are calculated from the FADT Event Block addresses */
72 
73 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_status);
74 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_enable);
75 
76 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_status);
77 ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_enable);
78 
79 /*
80  * Handle both ACPI 1.0 and ACPI 2.0+ Integer widths. The integer width is
81  * determined by the revision of the DSDT: If the DSDT revision is less than
82  * 2, use only the lower 32 bits of the internal 64-bit Integer.
83  */
84 ACPI_GLOBAL(u8, acpi_gbl_integer_bit_width);
85 ACPI_GLOBAL(u8, acpi_gbl_integer_byte_width);
86 ACPI_GLOBAL(u8, acpi_gbl_integer_nybble_width);
87 
88 /*****************************************************************************
89  *
90  * Mutual exclusion within the ACPICA subsystem
91  *
92  ****************************************************************************/
93 
94 /*
95  * Predefined mutex objects. This array contains the
96  * actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
97  * (The table maps local handles to the real OS handles)
98  */
99 ACPI_GLOBAL(struct acpi_mutex_info, acpi_gbl_mutex_info[ACPI_NUM_MUTEX]);
100 
101 /*
102  * Global lock mutex is an actual AML mutex object
103  * Global lock semaphore works in conjunction with the actual global lock
104  * Global lock spinlock is used for "pending" handshake
105  */
106 ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_global_lock_mutex);
107 ACPI_GLOBAL(acpi_semaphore, acpi_gbl_global_lock_semaphore);
108 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_global_lock_pending_lock);
109 ACPI_GLOBAL(u16, acpi_gbl_global_lock_handle);
110 ACPI_GLOBAL(u8, acpi_gbl_global_lock_acquired);
111 ACPI_GLOBAL(u8, acpi_gbl_global_lock_present);
112 ACPI_GLOBAL(u8, acpi_gbl_global_lock_pending);
113 
114 /*
115  * Spinlocks are used for interfaces that can be possibly called at
116  * interrupt level
117  */
118 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_gpe_lock);	/* For GPE data structs and registers */
119 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_hardware_lock);	/* For ACPI H/W except GPE registers */
120 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_reference_count_lock);
121 
122 /* Mutex for _OSI support */
123 
124 ACPI_GLOBAL(acpi_mutex, acpi_gbl_osi_mutex);
125 
126 /* Reader/Writer lock is used for namespace walk and dynamic table unload */
127 
128 ACPI_GLOBAL(struct acpi_rw_lock, acpi_gbl_namespace_rw_lock);
129 
130 /*****************************************************************************
131  *
132  * Miscellaneous globals
133  *
134  ****************************************************************************/
135 
136 /* Object caches */
137 
138 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_namespace_cache);
139 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_state_cache);
140 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_cache);
141 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_ext_cache);
142 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_operand_cache);
143 
144 /* System */
145 
146 ACPI_INIT_GLOBAL(u32, acpi_gbl_startup_flags, 0);
147 ACPI_INIT_GLOBAL(u8, acpi_gbl_shutdown, TRUE);
148 ACPI_INIT_GLOBAL(u8, acpi_gbl_early_initialization, TRUE);
149 
150 /* Global handlers */
151 
152 ACPI_GLOBAL(struct acpi_global_notify_handler, acpi_gbl_global_notify[2]);
153 ACPI_GLOBAL(acpi_exception_handler, acpi_gbl_exception_handler);
154 ACPI_GLOBAL(acpi_init_handler, acpi_gbl_init_handler);
155 ACPI_GLOBAL(acpi_table_handler, acpi_gbl_table_handler);
156 ACPI_GLOBAL(void *, acpi_gbl_table_handler_context);
157 ACPI_GLOBAL(acpi_interface_handler, acpi_gbl_interface_handler);
158 ACPI_GLOBAL(struct acpi_sci_handler_info *, acpi_gbl_sci_handler_list);
159 
160 /* Owner ID support */
161 
162 ACPI_GLOBAL(u32, acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS]);
163 ACPI_GLOBAL(u8, acpi_gbl_last_owner_id_index);
164 ACPI_GLOBAL(u8, acpi_gbl_next_owner_id_offset);
165 
166 /* Initialization sequencing */
167 
168 ACPI_INIT_GLOBAL(u8, acpi_gbl_namespace_initialized, FALSE);
169 
170 /* Miscellaneous */
171 
172 ACPI_GLOBAL(u32, acpi_gbl_original_mode);
173 ACPI_GLOBAL(u32, acpi_gbl_ns_lookup_count);
174 ACPI_GLOBAL(u32, acpi_gbl_ps_find_count);
175 ACPI_GLOBAL(u16, acpi_gbl_pm1_enable_register_save);
176 ACPI_GLOBAL(u8, acpi_gbl_debugger_configuration);
177 ACPI_GLOBAL(u8, acpi_gbl_step_to_next_call);
178 ACPI_GLOBAL(u8, acpi_gbl_acpi_hardware_present);
179 ACPI_GLOBAL(u8, acpi_gbl_events_initialized);
180 ACPI_GLOBAL(struct acpi_interface_info *, acpi_gbl_supported_interfaces);
181 ACPI_GLOBAL(struct acpi_address_range *,
182 	    acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX]);
183 
184 /* Other miscellaneous, declared and initialized in utglobal */
185 
186 extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
187 extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS];
188 extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS];
189 extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
190 extern const char acpi_gbl_lower_hex_digits[];
191 extern const char acpi_gbl_upper_hex_digits[];
192 extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
193 
194 /* Lists for tracking memory allocations (debug only) */
195 
196 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
197 ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_global_list);
198 ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_ns_node_list);
199 ACPI_GLOBAL(u8, acpi_gbl_display_final_mem_stats);
200 ACPI_GLOBAL(u8, acpi_gbl_disable_mem_tracking);
201 #endif
202 
203 /*****************************************************************************
204  *
205  * ACPI Namespace
206  *
207  ****************************************************************************/
208 
209 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
210 #define NUM_PREDEFINED_NAMES            10
211 #else
212 #define NUM_PREDEFINED_NAMES            9
213 #endif
214 
215 ACPI_GLOBAL(struct acpi_namespace_node, acpi_gbl_root_node_struct);
216 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_root_node);
217 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_fadt_gpe_device);
218 ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_module_code_list);
219 
220 extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES];
221 extern const struct acpi_predefined_names
222     acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES];
223 
224 #ifdef ACPI_DEBUG_OUTPUT
225 ACPI_GLOBAL(u32, acpi_gbl_current_node_count);
226 ACPI_GLOBAL(u32, acpi_gbl_current_node_size);
227 ACPI_GLOBAL(u32, acpi_gbl_max_concurrent_node_count);
228 ACPI_GLOBAL(acpi_size *, acpi_gbl_entry_stack_pointer);
229 ACPI_GLOBAL(acpi_size *, acpi_gbl_lowest_stack_pointer);
230 ACPI_GLOBAL(u32, acpi_gbl_deepest_nesting);
231 ACPI_INIT_GLOBAL(u32, acpi_gbl_nesting_level, 0);
232 #endif
233 
234 /*****************************************************************************
235  *
236  * Interpreter/Parser globals
237  *
238  ****************************************************************************/
239 
240 /* Control method single step flag */
241 
242 ACPI_GLOBAL(u8, acpi_gbl_cm_single_step);
243 ACPI_GLOBAL(struct acpi_thread_state *, acpi_gbl_current_walk_list);
244 ACPI_INIT_GLOBAL(union acpi_parse_object, *acpi_gbl_current_scope, NULL);
245 
246 /* ASL/ASL+ converter */
247 
248 ACPI_INIT_GLOBAL(u8, acpi_gbl_capture_comments, FALSE);
249 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_last_list_head, NULL);
250 
251 /*****************************************************************************
252  *
253  * Hardware globals
254  *
255  ****************************************************************************/
256 
257 extern struct acpi_bit_register_info
258     acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
259 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_a);
260 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_b);
261 
262 /*****************************************************************************
263  *
264  * Event and GPE globals
265  *
266  ****************************************************************************/
267 
268 #if (!ACPI_REDUCED_HARDWARE)
269 ACPI_GLOBAL(u8, acpi_gbl_all_gpes_initialized);
270 ACPI_GLOBAL(struct acpi_gpe_xrupt_info *, acpi_gbl_gpe_xrupt_list_head);
271 ACPI_GLOBAL(struct acpi_gpe_block_info *,
272 	    acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]);
273 ACPI_GLOBAL(acpi_gbl_event_handler, acpi_gbl_global_event_handler);
274 ACPI_GLOBAL(void *, acpi_gbl_global_event_handler_context);
275 ACPI_GLOBAL(struct acpi_fixed_event_handler,
276 	    acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]);
277 extern struct acpi_fixed_event_info
278     acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
279 #endif				/* !ACPI_REDUCED_HARDWARE */
280 
281 /*****************************************************************************
282  *
283  * Debug support
284  *
285  ****************************************************************************/
286 
287 /* Event counters */
288 
289 ACPI_GLOBAL(u32, acpi_method_count);
290 ACPI_GLOBAL(u32, acpi_gpe_count);
291 ACPI_GLOBAL(u32, acpi_sci_count);
292 ACPI_GLOBAL(u32, acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]);
293 
294 /* Dynamic control method tracing mechanism */
295 
296 ACPI_GLOBAL(u32, acpi_gbl_original_dbg_level);
297 ACPI_GLOBAL(u32, acpi_gbl_original_dbg_layer);
298 
299 /*****************************************************************************
300  *
301  * Debugger and Disassembler
302  *
303  ****************************************************************************/
304 
305 ACPI_INIT_GLOBAL(u8, acpi_gbl_db_output_flags, ACPI_DB_CONSOLE_OUTPUT);
306 
307 #ifdef ACPI_DISASSEMBLER
308 
309 /* Do not disassemble buffers to resource descriptors */
310 
311 ACPI_INIT_GLOBAL(u8, acpi_gbl_no_resource_disassembly, FALSE);
312 ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_noop_operator, FALSE);
313 ACPI_INIT_GLOBAL(u8, acpi_gbl_cstyle_disassembly, TRUE);
314 ACPI_INIT_GLOBAL(u8, acpi_gbl_force_aml_disassembly, FALSE);
315 ACPI_INIT_GLOBAL(u8, acpi_gbl_dm_opt_verbose, TRUE);
316 ACPI_INIT_GLOBAL(u8, acpi_gbl_dm_emit_external_opcodes, FALSE);
317 ACPI_INIT_GLOBAL(u8, acpi_gbl_do_disassembler_optimizations, TRUE);
318 ACPI_INIT_GLOBAL(ACPI_PARSE_OBJECT_LIST, *acpi_gbl_temp_list_head, NULL);
319 
320 ACPI_GLOBAL(u8, acpi_gbl_dm_opt_disasm);
321 ACPI_GLOBAL(u8, acpi_gbl_dm_opt_listing);
322 ACPI_GLOBAL(u8, acpi_gbl_num_external_methods);
323 ACPI_GLOBAL(u32, acpi_gbl_resolved_external_methods);
324 ACPI_GLOBAL(struct acpi_external_list *, acpi_gbl_external_list);
325 ACPI_GLOBAL(struct acpi_external_file *, acpi_gbl_external_file_list);
326 #endif
327 
328 #ifdef ACPI_DEBUGGER
329 ACPI_INIT_GLOBAL(u8, acpi_gbl_abort_method, FALSE);
330 ACPI_INIT_GLOBAL(acpi_thread_id, acpi_gbl_db_thread_id, ACPI_INVALID_THREAD_ID);
331 
332 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_ini_methods);
333 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_region_support);
334 ACPI_GLOBAL(u8, acpi_gbl_db_output_to_file);
335 ACPI_GLOBAL(char *, acpi_gbl_db_buffer);
336 ACPI_GLOBAL(char *, acpi_gbl_db_filename);
337 ACPI_GLOBAL(u32, acpi_gbl_db_debug_level);
338 ACPI_GLOBAL(u32, acpi_gbl_db_console_debug_level);
339 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_db_scope_node);
340 ACPI_GLOBAL(u8, acpi_gbl_db_terminate_loop);
341 ACPI_GLOBAL(u8, acpi_gbl_db_threads_terminated);
342 ACPI_GLOBAL(char *, acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]);
343 ACPI_GLOBAL(acpi_object_type, acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]);
344 
345 /* These buffers should all be the same size */
346 
347 ACPI_GLOBAL(char, acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]);
348 ACPI_GLOBAL(char, acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE]);
349 ACPI_GLOBAL(char, acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]);
350 
351 /* Statistics globals */
352 
353 ACPI_GLOBAL(u16, acpi_gbl_obj_type_count[ACPI_TOTAL_TYPES]);
354 ACPI_GLOBAL(u16, acpi_gbl_node_type_count[ACPI_TOTAL_TYPES]);
355 ACPI_GLOBAL(u16, acpi_gbl_obj_type_count_misc);
356 ACPI_GLOBAL(u16, acpi_gbl_node_type_count_misc);
357 ACPI_GLOBAL(u32, acpi_gbl_num_nodes);
358 ACPI_GLOBAL(u32, acpi_gbl_num_objects);
359 #endif				/* ACPI_DEBUGGER */
360 
361 #if defined (ACPI_DISASSEMBLER) || defined (ACPI_ASL_COMPILER)
362 ACPI_GLOBAL(const char, *acpi_gbl_pld_panel_list[]);
363 ACPI_GLOBAL(const char, *acpi_gbl_pld_vertical_position_list[]);
364 ACPI_GLOBAL(const char, *acpi_gbl_pld_horizontal_position_list[]);
365 ACPI_GLOBAL(const char, *acpi_gbl_pld_shape_list[]);
366 ACPI_INIT_GLOBAL(u8, acpi_gbl_disasm_flag, FALSE);
367 #endif
368 
369 /*****************************************************************************
370  *
371  * ACPICA application-specific globals
372  *
373  ****************************************************************************/
374 
375 /* ASL-to-ASL+ conversion utility (implemented within the iASL compiler) */
376 
377 #ifdef ACPI_ASL_COMPILER
378 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_inline_comment, NULL);
379 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_end_node_comment, NULL);
380 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_open_brace_comment, NULL);
381 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_close_brace_comment, NULL);
382 
383 ACPI_INIT_GLOBAL(char *, acpi_gbl_root_filename, NULL);
384 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_filename, NULL);
385 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_parent_filename, NULL);
386 ACPI_INIT_GLOBAL(char *, acpi_gbl_current_include_filename, NULL);
387 
388 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_def_blk_comment_list_head,
389 		 NULL);
390 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_def_blk_comment_list_tail,
391 		 NULL);
392 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_reg_comment_list_head,
393 		 NULL);
394 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_reg_comment_list_tail,
395 		 NULL);
396 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_inc_comment_list_head,
397 		 NULL);
398 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_inc_comment_list_tail,
399 		 NULL);
400 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_end_blk_comment_list_head,
401 		 NULL);
402 ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_end_blk_comment_list_tail,
403 		 NULL);
404 
405 ACPI_INIT_GLOBAL(struct acpi_comment_addr_node,
406 		 *acpi_gbl_comment_addr_list_head, NULL);
407 ACPI_INIT_GLOBAL(struct acpi_file_node, *acpi_gbl_file_tree_root, NULL);
408 
409 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_reg_comment_cache);
410 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_comment_addr_cache);
411 ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_file_cache);
412 
413 ACPI_INIT_GLOBAL(u8, acpi_gbl_debug_asl_conversion, FALSE);
414 ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_conv_debug_file, NULL);
415 ACPI_GLOBAL(char, acpi_gbl_table_sig[4]);
416 #endif
417 
418 #ifdef ACPI_APPLICATION
419 ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_debug_file, NULL);
420 ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_output_file, NULL);
421 ACPI_INIT_GLOBAL(u8, acpi_gbl_debug_timeout, FALSE);
422 
423 /* Print buffer */
424 
425 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_print_lock);	/* For print buffer */
426 ACPI_GLOBAL(char, acpi_gbl_print_buffer[1024]);
427 #endif				/* ACPI_APPLICATION */
428 
429 #endif				/* __ACGLOBAL_H__ */
430