xref: /openbmc/linux/drivers/acpi/acpica/acglobal.h (revision de2bdb3d)
1 /******************************************************************************
2  *
3  * Name: acglobal.h - Declarations for global variables
4  *
5  *****************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2016, 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 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 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 /* Misc */
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 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
195 
196 /* Lists for tracking memory allocations (debug only) */
197 
198 ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_global_list);
199 ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_ns_node_list);
200 ACPI_GLOBAL(u8, acpi_gbl_display_final_mem_stats);
201 ACPI_GLOBAL(u8, acpi_gbl_disable_mem_tracking);
202 #endif
203 
204 /*****************************************************************************
205  *
206  * Namespace globals
207  *
208  ****************************************************************************/
209 
210 #if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
211 #define NUM_PREDEFINED_NAMES            10
212 #else
213 #define NUM_PREDEFINED_NAMES            9
214 #endif
215 
216 ACPI_GLOBAL(struct acpi_namespace_node, acpi_gbl_root_node_struct);
217 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_root_node);
218 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_fadt_gpe_device);
219 ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_module_code_list);
220 
221 extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES];
222 extern const struct acpi_predefined_names
223     acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES];
224 
225 #ifdef ACPI_DEBUG_OUTPUT
226 ACPI_GLOBAL(u32, acpi_gbl_current_node_count);
227 ACPI_GLOBAL(u32, acpi_gbl_current_node_size);
228 ACPI_GLOBAL(u32, acpi_gbl_max_concurrent_node_count);
229 ACPI_GLOBAL(acpi_size *, acpi_gbl_entry_stack_pointer);
230 ACPI_GLOBAL(acpi_size *, acpi_gbl_lowest_stack_pointer);
231 ACPI_GLOBAL(u32, acpi_gbl_deepest_nesting);
232 ACPI_INIT_GLOBAL(u32, acpi_gbl_nesting_level, 0);
233 #endif
234 
235 /*****************************************************************************
236  *
237  * Interpreter globals
238  *
239  ****************************************************************************/
240 
241 ACPI_GLOBAL(struct acpi_thread_state *, acpi_gbl_current_walk_list);
242 
243 /* Maximum number of While() loop iterations before forced abort */
244 
245 ACPI_GLOBAL(u16, acpi_gbl_max_loop_iterations);
246 
247 /* Control method single step flag */
248 
249 ACPI_GLOBAL(u8, acpi_gbl_cm_single_step);
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 
260 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_a);
261 ACPI_GLOBAL(u8, acpi_gbl_sleep_type_b);
262 
263 /*****************************************************************************
264  *
265  * Event and GPE globals
266  *
267  ****************************************************************************/
268 
269 #if (!ACPI_REDUCED_HARDWARE)
270 
271 ACPI_GLOBAL(u8, acpi_gbl_all_gpes_initialized);
272 ACPI_GLOBAL(struct acpi_gpe_xrupt_info *, acpi_gbl_gpe_xrupt_list_head);
273 ACPI_GLOBAL(struct acpi_gpe_block_info *,
274 	    acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]);
275 ACPI_GLOBAL(acpi_gbl_event_handler, acpi_gbl_global_event_handler);
276 ACPI_GLOBAL(void *, acpi_gbl_global_event_handler_context);
277 ACPI_GLOBAL(struct acpi_fixed_event_handler,
278 	    acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]);
279 
280 extern struct acpi_fixed_event_info
281     acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
282 
283 #endif				/* !ACPI_REDUCED_HARDWARE */
284 
285 /*****************************************************************************
286  *
287  * Debug support
288  *
289  ****************************************************************************/
290 
291 /* Event counters */
292 
293 ACPI_GLOBAL(u32, acpi_method_count);
294 ACPI_GLOBAL(u32, acpi_gpe_count);
295 ACPI_GLOBAL(u32, acpi_sci_count);
296 ACPI_GLOBAL(u32, acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]);
297 
298 /* Support for dynamic control method tracing mechanism */
299 
300 ACPI_GLOBAL(u32, acpi_gbl_original_dbg_level);
301 ACPI_GLOBAL(u32, acpi_gbl_original_dbg_layer);
302 
303 /*****************************************************************************
304  *
305  * Debugger and Disassembler globals
306  *
307  ****************************************************************************/
308 
309 ACPI_INIT_GLOBAL(u8, acpi_gbl_db_output_flags, ACPI_DB_CONSOLE_OUTPUT);
310 
311 #ifdef ACPI_DISASSEMBLER
312 
313 /* Do not disassemble buffers to resource descriptors */
314 
315 ACPI_INIT_GLOBAL(u8, acpi_gbl_no_resource_disassembly, FALSE);
316 ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_noop_operator, FALSE);
317 ACPI_INIT_GLOBAL(u8, acpi_gbl_cstyle_disassembly, TRUE);
318 ACPI_INIT_GLOBAL(u8, acpi_gbl_force_aml_disassembly, FALSE);
319 ACPI_INIT_GLOBAL(u8, acpi_gbl_dm_opt_verbose, TRUE);
320 ACPI_INIT_GLOBAL(u8, acpi_gbl_dm_emit_external_opcodes, FALSE);
321 
322 ACPI_GLOBAL(u8, acpi_gbl_dm_opt_disasm);
323 ACPI_GLOBAL(u8, acpi_gbl_dm_opt_listing);
324 ACPI_GLOBAL(u8, acpi_gbl_num_external_methods);
325 ACPI_GLOBAL(u32, acpi_gbl_resolved_external_methods);
326 ACPI_GLOBAL(struct acpi_external_list *, acpi_gbl_external_list);
327 ACPI_GLOBAL(struct acpi_external_file *, acpi_gbl_external_file_list);
328 #endif
329 
330 #ifdef ACPI_DEBUGGER
331 
332 ACPI_INIT_GLOBAL(u8, acpi_gbl_abort_method, FALSE);
333 ACPI_INIT_GLOBAL(acpi_thread_id, acpi_gbl_db_thread_id, ACPI_INVALID_THREAD_ID);
334 
335 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_ini_methods);
336 ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_region_support);
337 ACPI_GLOBAL(u8, acpi_gbl_db_output_to_file);
338 ACPI_GLOBAL(char *, acpi_gbl_db_buffer);
339 ACPI_GLOBAL(char *, acpi_gbl_db_filename);
340 ACPI_GLOBAL(u32, acpi_gbl_db_debug_level);
341 ACPI_GLOBAL(u32, acpi_gbl_db_console_debug_level);
342 ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_db_scope_node);
343 ACPI_GLOBAL(u8, acpi_gbl_db_terminate_loop);
344 ACPI_GLOBAL(u8, acpi_gbl_db_threads_terminated);
345 
346 ACPI_GLOBAL(char *, acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]);
347 ACPI_GLOBAL(acpi_object_type, acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]);
348 
349 /* These buffers should all be the same size */
350 
351 ACPI_GLOBAL(char, acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]);
352 ACPI_GLOBAL(char, acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE]);
353 ACPI_GLOBAL(char, acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]);
354 
355 /*
356  * Statistic globals
357  */
358 ACPI_GLOBAL(u16, acpi_gbl_obj_type_count[ACPI_TOTAL_TYPES]);
359 ACPI_GLOBAL(u16, acpi_gbl_node_type_count[ACPI_TOTAL_TYPES]);
360 ACPI_GLOBAL(u16, acpi_gbl_obj_type_count_misc);
361 ACPI_GLOBAL(u16, acpi_gbl_node_type_count_misc);
362 ACPI_GLOBAL(u32, acpi_gbl_num_nodes);
363 ACPI_GLOBAL(u32, acpi_gbl_num_objects);
364 
365 #endif				/* ACPI_DEBUGGER */
366 
367 #if defined (ACPI_DISASSEMBLER) || defined (ACPI_ASL_COMPILER)
368 
369 ACPI_GLOBAL(const char, *acpi_gbl_pld_panel_list[]);
370 ACPI_GLOBAL(const char, *acpi_gbl_pld_vertical_position_list[]);
371 ACPI_GLOBAL(const char, *acpi_gbl_pld_horizontal_position_list[]);
372 ACPI_GLOBAL(const char, *acpi_gbl_pld_shape_list[]);
373 
374 #endif
375 
376 /*****************************************************************************
377  *
378  * Application globals
379  *
380  ****************************************************************************/
381 
382 #ifdef ACPI_APPLICATION
383 
384 ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_debug_file, NULL);
385 ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_output_file, NULL);
386 ACPI_INIT_GLOBAL(u8, acpi_gbl_debug_timeout, FALSE);
387 
388 /* Print buffer */
389 
390 ACPI_GLOBAL(acpi_spinlock, acpi_gbl_print_lock);	/* For print buffer */
391 ACPI_GLOBAL(char, acpi_gbl_print_buffer[1024]);
392 
393 #endif				/* ACPI_APPLICATION */
394 
395 /*****************************************************************************
396  *
397  * Info/help support
398  *
399  ****************************************************************************/
400 
401 extern const struct ah_predefined_name asl_predefined_info[];
402 extern const struct ah_device_id asl_device_ids[];
403 
404 #endif				/* __ACGLOBAL_H__ */
405