xref: /openbmc/linux/drivers/acpi/acpica/aclocal.h (revision 07c7c6bf)
1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2 /******************************************************************************
3  *
4  * Name: aclocal.h - Internal data types used across the ACPI subsystem
5  *
6  * Copyright (C) 2000 - 2019, Intel Corp.
7  *
8  *****************************************************************************/
9 
10 #ifndef __ACLOCAL_H__
11 #define __ACLOCAL_H__
12 
13 /* acpisrc:struct_defs -- for acpisrc conversion */
14 
15 #define ACPI_SERIALIZED                 0xFF
16 
17 typedef u32 acpi_mutex_handle;
18 #define ACPI_GLOBAL_LOCK                (acpi_semaphore) (-1)
19 
20 /* Total number of aml opcodes defined */
21 
22 #define AML_NUM_OPCODES                 0x83
23 
24 /* Forward declarations */
25 
26 struct acpi_walk_state;
27 struct acpi_obj_mutex;
28 union acpi_parse_object;
29 
30 /*****************************************************************************
31  *
32  * Mutex typedefs and structs
33  *
34  ****************************************************************************/
35 
36 /*
37  * Predefined handles for the mutex objects used within the subsystem
38  * All mutex objects are automatically created by acpi_ut_mutex_initialize.
39  *
40  * The acquire/release ordering protocol is implied via this list. Mutexes
41  * with a lower value must be acquired before mutexes with a higher value.
42  *
43  * NOTE: any changes here must be reflected in the acpi_gbl_mutex_names
44  * table below also!
45  */
46 #define ACPI_MTX_INTERPRETER            0	/* AML Interpreter, main lock */
47 #define ACPI_MTX_NAMESPACE              1	/* ACPI Namespace */
48 #define ACPI_MTX_TABLES                 2	/* Data for ACPI tables */
49 #define ACPI_MTX_EVENTS                 3	/* Data for ACPI events */
50 #define ACPI_MTX_CACHES                 4	/* Internal caches, general purposes */
51 #define ACPI_MTX_MEMORY                 5	/* Debug memory tracking lists */
52 
53 #define ACPI_MAX_MUTEX                  5
54 #define ACPI_NUM_MUTEX                  (ACPI_MAX_MUTEX+1)
55 
56 /* Lock structure for reader/writer interfaces */
57 
58 struct acpi_rw_lock {
59 	acpi_mutex writer_mutex;
60 	acpi_mutex reader_mutex;
61 	u32 num_readers;
62 };
63 
64 /*
65  * Predefined handles for spinlocks used within the subsystem.
66  * These spinlocks are created by acpi_ut_mutex_initialize
67  */
68 #define ACPI_LOCK_GPES                  0
69 #define ACPI_LOCK_HARDWARE              1
70 
71 #define ACPI_MAX_LOCK                   1
72 #define ACPI_NUM_LOCK                   (ACPI_MAX_LOCK+1)
73 
74 /* This Thread ID means that the mutex is not in use (unlocked) */
75 
76 #define ACPI_MUTEX_NOT_ACQUIRED         ((acpi_thread_id) 0)
77 
78 /* This Thread ID means an invalid thread ID */
79 
80 #ifdef ACPI_OS_INVALID_THREAD_ID
81 #define ACPI_INVALID_THREAD_ID          ACPI_OS_INVALID_THREAD_ID
82 #else
83 #define ACPI_INVALID_THREAD_ID          ((acpi_thread_id) 0xFFFFFFFF)
84 #endif
85 
86 /* Table for the global mutexes */
87 
88 struct acpi_mutex_info {
89 	acpi_mutex mutex;
90 	u32 use_count;
91 	acpi_thread_id thread_id;
92 };
93 
94 /* Lock flag parameter for various interfaces */
95 
96 #define ACPI_MTX_DO_NOT_LOCK            0
97 #define ACPI_MTX_LOCK                   1
98 
99 /* Field access granularities */
100 
101 #define ACPI_FIELD_BYTE_GRANULARITY     1
102 #define ACPI_FIELD_WORD_GRANULARITY     2
103 #define ACPI_FIELD_DWORD_GRANULARITY    4
104 #define ACPI_FIELD_QWORD_GRANULARITY    8
105 
106 #define ACPI_ENTRY_NOT_FOUND            NULL
107 
108 /*****************************************************************************
109  *
110  * Namespace typedefs and structs
111  *
112  ****************************************************************************/
113 
114 /* Operational modes of the AML interpreter/scanner */
115 
116 typedef enum {
117 	ACPI_IMODE_LOAD_PASS1 = 0x01,
118 	ACPI_IMODE_LOAD_PASS2 = 0x02,
119 	ACPI_IMODE_EXECUTE = 0x03
120 } acpi_interpreter_mode;
121 
122 /*
123  * The Namespace Node describes a named object that appears in the AML.
124  * descriptor_type is used to differentiate between internal descriptors.
125  *
126  * The node is optimized for both 32-bit and 64-bit platforms:
127  * 20 bytes for the 32-bit case, 32 bytes for the 64-bit case.
128  *
129  * Note: The descriptor_type and Type fields must appear in the identical
130  * position in both the struct acpi_namespace_node and union acpi_operand_object
131  * structures.
132  */
133 struct acpi_namespace_node {
134 	union acpi_operand_object *object;	/* Interpreter object */
135 	u8 descriptor_type;	/* Differentiate object descriptor types */
136 	u8 type;		/* ACPI Type associated with this name */
137 	u8 flags;		/* Miscellaneous flags */
138 	acpi_owner_id owner_id;	/* Node creator */
139 	union acpi_name_union name;	/* ACPI Name, always 4 chars per ACPI spec */
140 	struct acpi_namespace_node *parent;	/* Parent node */
141 	struct acpi_namespace_node *child;	/* First child */
142 	struct acpi_namespace_node *peer;	/* First peer */
143 
144 	/*
145 	 * The following fields are used by the ASL compiler and disassembler only
146 	 */
147 #ifdef ACPI_LARGE_NAMESPACE_NODE
148 	union acpi_parse_object *op;
149 	void *method_locals;
150 	void *method_args;
151 	u32 value;
152 	u32 length;
153 	u8 arg_count;
154 
155 #endif
156 };
157 
158 /* Namespace Node flags */
159 
160 #define ANOBJ_RESERVED                  0x01	/* Available for use */
161 #define ANOBJ_TEMPORARY                 0x02	/* Node is create by a method and is temporary */
162 #define ANOBJ_METHOD_ARG                0x04	/* Node is a method argument */
163 #define ANOBJ_METHOD_LOCAL              0x08	/* Node is a method local */
164 #define ANOBJ_SUBTREE_HAS_INI           0x10	/* Used to optimize device initialization */
165 #define ANOBJ_EVALUATED                 0x20	/* Set on first evaluation of node */
166 #define ANOBJ_ALLOCATED_BUFFER          0x40	/* Method AML buffer is dynamic (install_method) */
167 #define ANOBJ_NODE_EARLY_INIT           0x80	/* acpi_exec only: Node was create via init file (-fi) */
168 
169 #define ANOBJ_IS_EXTERNAL               0x08	/* iASL only: This object created via External() */
170 #define ANOBJ_METHOD_NO_RETVAL          0x10	/* iASL only: Method has no return value */
171 #define ANOBJ_METHOD_SOME_NO_RETVAL     0x20	/* iASL only: Method has at least one return value */
172 #define ANOBJ_IS_REFERENCED             0x80	/* iASL only: Object was referenced */
173 
174 /* Internal ACPI table management - master table list */
175 
176 struct acpi_table_list {
177 	struct acpi_table_desc *tables;	/* Table descriptor array */
178 	u32 current_table_count;	/* Tables currently in the array */
179 	u32 max_table_count;	/* Max tables array will hold */
180 	u8 flags;
181 };
182 
183 /* Flags for above */
184 
185 #define ACPI_ROOT_ORIGIN_UNKNOWN        (0)	/* ~ORIGIN_ALLOCATED */
186 #define ACPI_ROOT_ORIGIN_ALLOCATED      (1)
187 #define ACPI_ROOT_ALLOW_RESIZE          (2)
188 
189 /* List to manage incoming ACPI tables */
190 
191 struct acpi_new_table_desc {
192 	struct acpi_table_header *table;
193 	struct acpi_new_table_desc *next;
194 };
195 
196 /* Predefined table indexes */
197 
198 #define ACPI_INVALID_TABLE_INDEX        (0xFFFFFFFF)
199 
200 struct acpi_find_context {
201 	char *search_for;
202 	acpi_handle *list;
203 	u32 *count;
204 };
205 
206 struct acpi_ns_search_data {
207 	struct acpi_namespace_node *node;
208 };
209 
210 /* Object types used during package copies */
211 
212 #define ACPI_COPY_TYPE_SIMPLE           0
213 #define ACPI_COPY_TYPE_PACKAGE          1
214 
215 /* Info structure used to convert external<->internal namestrings */
216 
217 struct acpi_namestring_info {
218 	const char *external_name;
219 	const char *next_external_char;
220 	char *internal_name;
221 	u32 length;
222 	u32 num_segments;
223 	u32 num_carats;
224 	u8 fully_qualified;
225 };
226 
227 /* Field creation info */
228 
229 struct acpi_create_field_info {
230 	struct acpi_namespace_node *region_node;
231 	struct acpi_namespace_node *field_node;
232 	struct acpi_namespace_node *register_node;
233 	struct acpi_namespace_node *data_register_node;
234 	struct acpi_namespace_node *connection_node;
235 	u8 *resource_buffer;
236 	u32 bank_value;
237 	u32 field_bit_position;
238 	u32 field_bit_length;
239 	u16 resource_length;
240 	u16 pin_number_index;
241 	u8 field_flags;
242 	u8 attribute;
243 	u8 field_type;
244 	u8 access_length;
245 };
246 
247 typedef
248 acpi_status (*acpi_internal_method) (struct acpi_walk_state * walk_state);
249 
250 /*
251  * Bitmapped ACPI types. Used internally only
252  */
253 #define ACPI_BTYPE_ANY                  0x00000000
254 #define ACPI_BTYPE_INTEGER              0x00000001
255 #define ACPI_BTYPE_STRING               0x00000002
256 #define ACPI_BTYPE_BUFFER               0x00000004
257 #define ACPI_BTYPE_PACKAGE              0x00000008
258 #define ACPI_BTYPE_FIELD_UNIT           0x00000010
259 #define ACPI_BTYPE_DEVICE               0x00000020
260 #define ACPI_BTYPE_EVENT                0x00000040
261 #define ACPI_BTYPE_METHOD               0x00000080
262 #define ACPI_BTYPE_MUTEX                0x00000100
263 #define ACPI_BTYPE_REGION               0x00000200
264 #define ACPI_BTYPE_POWER                0x00000400
265 #define ACPI_BTYPE_PROCESSOR            0x00000800
266 #define ACPI_BTYPE_THERMAL              0x00001000
267 #define ACPI_BTYPE_BUFFER_FIELD         0x00002000
268 #define ACPI_BTYPE_DDB_HANDLE           0x00004000
269 #define ACPI_BTYPE_DEBUG_OBJECT         0x00008000
270 #define ACPI_BTYPE_REFERENCE_OBJECT     0x00010000	/* From Index(), ref_of(), etc (type6_opcodes) */
271 #define ACPI_BTYPE_RESOURCE             0x00020000
272 #define ACPI_BTYPE_NAMED_REFERENCE      0x00040000	/* Generic unresolved Name or Namepath */
273 
274 #define ACPI_BTYPE_COMPUTE_DATA         (ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING | ACPI_BTYPE_BUFFER)
275 
276 #define ACPI_BTYPE_DATA                 (ACPI_BTYPE_COMPUTE_DATA  | ACPI_BTYPE_PACKAGE)
277 
278 	/* Used by Copy, de_ref_of, Store, Printf, Fprintf */
279 
280 #define ACPI_BTYPE_DATA_REFERENCE       (ACPI_BTYPE_DATA | ACPI_BTYPE_REFERENCE_OBJECT | ACPI_BTYPE_DDB_HANDLE)
281 #define ACPI_BTYPE_DEVICE_OBJECTS       (ACPI_BTYPE_DEVICE | ACPI_BTYPE_THERMAL | ACPI_BTYPE_PROCESSOR)
282 #define ACPI_BTYPE_OBJECTS_AND_REFS     0x0001FFFF	/* ARG or LOCAL */
283 #define ACPI_BTYPE_ALL_OBJECTS          0x0000FFFF
284 
285 #pragma pack(1)
286 
287 /*
288  * Information structure for ACPI predefined names.
289  * Each entry in the table contains the following items:
290  *
291  * name                 - The ACPI reserved name
292  * param_count          - Number of arguments to the method
293  * expected_return_btypes - Allowed type(s) for the return value
294  */
295 struct acpi_name_info {
296 	char name[ACPI_NAMESEG_SIZE];
297 	u16 argument_list;
298 	u8 expected_btypes;
299 };
300 
301 /*
302  * Secondary information structures for ACPI predefined objects that return
303  * package objects. This structure appears as the next entry in the table
304  * after the NAME_INFO structure above.
305  *
306  * The reason for this is to minimize the size of the predefined name table.
307  */
308 
309 /*
310  * Used for ACPI_PTYPE1_FIXED, ACPI_PTYPE1_VAR, ACPI_PTYPE2,
311  * ACPI_PTYPE2_MIN, ACPI_PTYPE2_PKG_COUNT, ACPI_PTYPE2_COUNT,
312  * ACPI_PTYPE2_FIX_VAR
313  */
314 struct acpi_package_info {
315 	u8 type;
316 	u8 object_type1;
317 	u8 count1;
318 	u8 object_type2;
319 	u8 count2;
320 	u16 reserved;
321 };
322 
323 /* Used for ACPI_PTYPE2_FIXED */
324 
325 struct acpi_package_info2 {
326 	u8 type;
327 	u8 count;
328 	u8 object_type[4];
329 	u8 reserved;
330 };
331 
332 /* Used for ACPI_PTYPE1_OPTION */
333 
334 struct acpi_package_info3 {
335 	u8 type;
336 	u8 count;
337 	u8 object_type[2];
338 	u8 tail_object_type;
339 	u16 reserved;
340 };
341 
342 struct acpi_package_info4 {
343 	u8 type;
344 	u8 object_type1;
345 	u8 count1;
346 	u8 sub_object_types;
347 	u8 pkg_count;
348 	u16 reserved;
349 };
350 
351 union acpi_predefined_info {
352 	struct acpi_name_info info;
353 	struct acpi_package_info ret_info;
354 	struct acpi_package_info2 ret_info2;
355 	struct acpi_package_info3 ret_info3;
356 	struct acpi_package_info4 ret_info4;
357 };
358 
359 /* Reset to default packing */
360 
361 #pragma pack()
362 
363 /* Return object auto-repair info */
364 
365 typedef acpi_status (*acpi_object_converter) (struct acpi_namespace_node *
366 					      scope,
367 					      union acpi_operand_object *
368 					      original_object,
369 					      union acpi_operand_object **
370 					      converted_object);
371 
372 struct acpi_simple_repair_info {
373 	char name[ACPI_NAMESEG_SIZE];
374 	u32 unexpected_btypes;
375 	u32 package_index;
376 	acpi_object_converter object_converter;
377 };
378 
379 /*
380  * Bitmapped return value types
381  * Note: the actual data types must be contiguous, a loop in nspredef.c
382  * depends on this.
383  */
384 #define ACPI_RTYPE_ANY                  0x00
385 #define ACPI_RTYPE_NONE                 0x01
386 #define ACPI_RTYPE_INTEGER              0x02
387 #define ACPI_RTYPE_STRING               0x04
388 #define ACPI_RTYPE_BUFFER               0x08
389 #define ACPI_RTYPE_PACKAGE              0x10
390 #define ACPI_RTYPE_REFERENCE            0x20
391 #define ACPI_RTYPE_ALL                  0x3F
392 
393 #define ACPI_NUM_RTYPES                 5	/* Number of actual object types */
394 
395 /* Info for running the _REG methods */
396 
397 struct acpi_reg_walk_info {
398 	u32 function;
399 	u32 reg_run_count;
400 	acpi_adr_space_type space_id;
401 };
402 
403 /*****************************************************************************
404  *
405  * Event typedefs and structs
406  *
407  ****************************************************************************/
408 
409 /* Dispatch info for each host-installed SCI handler */
410 
411 struct acpi_sci_handler_info {
412 	struct acpi_sci_handler_info *next;
413 	acpi_sci_handler address;	/* Address of handler */
414 	void *context;		/* Context to be passed to handler */
415 };
416 
417 /* Dispatch info for each GPE -- either a method or handler, cannot be both */
418 
419 struct acpi_gpe_handler_info {
420 	acpi_gpe_handler address;	/* Address of handler, if any */
421 	void *context;		/* Context to be passed to handler */
422 	struct acpi_namespace_node *method_node;	/* Method node for this GPE level (saved) */
423 	u8 original_flags;	/* Original (pre-handler) GPE info */
424 	u8 originally_enabled;	/* True if GPE was originally enabled */
425 };
426 
427 /* Notify info for implicit notify, multiple device objects */
428 
429 struct acpi_gpe_notify_info {
430 	struct acpi_namespace_node *device_node;	/* Device to be notified */
431 	struct acpi_gpe_notify_info *next;
432 };
433 
434 /*
435  * GPE dispatch info. At any time, the GPE can have at most one type
436  * of dispatch - Method, Handler, or Implicit Notify.
437  */
438 union acpi_gpe_dispatch_info {
439 	struct acpi_namespace_node *method_node;	/* Method node for this GPE level */
440 	struct acpi_gpe_handler_info *handler;  /* Installed GPE handler */
441 	struct acpi_gpe_notify_info *notify_list;	/* List of _PRW devices for implicit notifies */
442 };
443 
444 /*
445  * Information about a GPE, one per each GPE in an array.
446  * NOTE: Important to keep this struct as small as possible.
447  */
448 struct acpi_gpe_event_info {
449 	union acpi_gpe_dispatch_info dispatch;	/* Either Method, Handler, or notify_list */
450 	struct acpi_gpe_register_info *register_info;	/* Backpointer to register info */
451 	u8 flags;		/* Misc info about this GPE */
452 	u8 gpe_number;		/* This GPE */
453 	u8 runtime_count;	/* References to a run GPE */
454 	u8 disable_for_dispatch;	/* Masked during dispatching */
455 };
456 
457 /* Information about a GPE register pair, one per each status/enable pair in an array */
458 
459 struct acpi_gpe_register_info {
460 	struct acpi_generic_address status_address;	/* Address of status reg */
461 	struct acpi_generic_address enable_address;	/* Address of enable reg */
462 	u16 base_gpe_number;	/* Base GPE number for this register */
463 	u8 enable_for_wake;	/* GPEs to keep enabled when sleeping */
464 	u8 enable_for_run;	/* GPEs to keep enabled when running */
465 	u8 mask_for_run;	/* GPEs to keep masked when running */
466 	u8 enable_mask;		/* Current mask of enabled GPEs */
467 };
468 
469 /*
470  * Information about a GPE register block, one per each installed block --
471  * GPE0, GPE1, and one per each installed GPE Block Device.
472  */
473 struct acpi_gpe_block_info {
474 	struct acpi_namespace_node *node;
475 	struct acpi_gpe_block_info *previous;
476 	struct acpi_gpe_block_info *next;
477 	struct acpi_gpe_xrupt_info *xrupt_block;	/* Backpointer to interrupt block */
478 	struct acpi_gpe_register_info *register_info;	/* One per GPE register pair */
479 	struct acpi_gpe_event_info *event_info;	/* One for each GPE */
480 	u64 address;		/* Base address of the block */
481 	u32 register_count;	/* Number of register pairs in block */
482 	u16 gpe_count;		/* Number of individual GPEs in block */
483 	u16 block_base_number;	/* Base GPE number for this block */
484 	u8 space_id;
485 	u8 initialized;		/* TRUE if this block is initialized */
486 };
487 
488 /* Information about GPE interrupt handlers, one per each interrupt level used for GPEs */
489 
490 struct acpi_gpe_xrupt_info {
491 	struct acpi_gpe_xrupt_info *previous;
492 	struct acpi_gpe_xrupt_info *next;
493 	struct acpi_gpe_block_info *gpe_block_list_head;	/* List of GPE blocks for this xrupt */
494 	u32 interrupt_number;	/* System interrupt number */
495 };
496 
497 struct acpi_gpe_walk_info {
498 	struct acpi_namespace_node *gpe_device;
499 	struct acpi_gpe_block_info *gpe_block;
500 	u16 count;
501 	acpi_owner_id owner_id;
502 	u8 execute_by_owner_id;
503 };
504 
505 struct acpi_gpe_device_info {
506 	u32 index;
507 	u32 next_block_base_index;
508 	acpi_status status;
509 	struct acpi_namespace_node *gpe_device;
510 };
511 
512 typedef acpi_status (*acpi_gpe_callback) (struct acpi_gpe_xrupt_info *
513 					  gpe_xrupt_info,
514 					  struct acpi_gpe_block_info *
515 					  gpe_block, void *context);
516 
517 /* Information about each particular fixed event */
518 
519 struct acpi_fixed_event_handler {
520 	acpi_event_handler handler;	/* Address of handler. */
521 	void *context;		/* Context to be passed to handler */
522 };
523 
524 struct acpi_fixed_event_info {
525 	u8 status_register_id;
526 	u8 enable_register_id;
527 	u16 status_bit_mask;
528 	u16 enable_bit_mask;
529 };
530 
531 /* Information used during field processing */
532 
533 struct acpi_field_info {
534 	u8 skip_field;
535 	u8 field_flag;
536 	u32 pkg_length;
537 };
538 
539 /*****************************************************************************
540  *
541  * Generic "state" object for stacks
542  *
543  ****************************************************************************/
544 
545 #define ACPI_CONTROL_NORMAL                  0xC0
546 #define ACPI_CONTROL_CONDITIONAL_EXECUTING   0xC1
547 #define ACPI_CONTROL_PREDICATE_EXECUTING     0xC2
548 #define ACPI_CONTROL_PREDICATE_FALSE         0xC3
549 #define ACPI_CONTROL_PREDICATE_TRUE          0xC4
550 
551 #define ACPI_STATE_COMMON \
552 	void                            *next; \
553 	u8                              descriptor_type; /* To differentiate various internal objs */\
554 	u8                              flags; \
555 	u16                             value; \
556 	u16                             state;
557 
558 	/* There are 2 bytes available here until the next natural alignment boundary */
559 
560 struct acpi_common_state {
561 ACPI_STATE_COMMON};
562 
563 /*
564  * Update state - used to traverse complex objects such as packages
565  */
566 struct acpi_update_state {
567 	ACPI_STATE_COMMON union acpi_operand_object *object;
568 };
569 
570 /*
571  * Pkg state - used to traverse nested package structures
572  */
573 struct acpi_pkg_state {
574 	ACPI_STATE_COMMON u32 index;
575 	union acpi_operand_object *source_object;
576 	union acpi_operand_object *dest_object;
577 	struct acpi_walk_state *walk_state;
578 	void *this_target_obj;
579 	u32 num_packages;
580 };
581 
582 /*
583  * Control state - one per if/else and while constructs.
584  * Allows nesting of these constructs
585  */
586 struct acpi_control_state {
587 	ACPI_STATE_COMMON u16 opcode;
588 	union acpi_parse_object *predicate_op;
589 	u8 *aml_predicate_start;	/* Start of if/while predicate */
590 	u8 *package_end;	/* End of if/while block */
591 	u64 loop_timeout;	/* While() loop timeout */
592 };
593 
594 /*
595  * Scope state - current scope during namespace lookups
596  */
597 struct acpi_scope_state {
598 	ACPI_STATE_COMMON struct acpi_namespace_node *node;
599 };
600 
601 struct acpi_pscope_state {
602 	ACPI_STATE_COMMON u32 arg_count;	/* Number of fixed arguments */
603 	union acpi_parse_object *op;	/* Current op being parsed */
604 	u8 *arg_end;		/* Current argument end */
605 	u8 *pkg_end;		/* Current package end */
606 	u32 arg_list;		/* Next argument to parse */
607 };
608 
609 /*
610  * Thread state - one per thread across multiple walk states. Multiple walk
611  * states are created when there are nested control methods executing.
612  */
613 struct acpi_thread_state {
614 	ACPI_STATE_COMMON u8 current_sync_level;	/* Mutex Sync (nested acquire) level */
615 	struct acpi_walk_state *walk_state_list;	/* Head of list of walk_states for this thread */
616 	union acpi_operand_object *acquired_mutex_list;	/* List of all currently acquired mutexes */
617 	acpi_thread_id thread_id;	/* Running thread ID */
618 };
619 
620 /*
621  * Result values - used to accumulate the results of nested
622  * AML arguments
623  */
624 struct acpi_result_values {
625 	ACPI_STATE_COMMON
626 	    union acpi_operand_object *obj_desc[ACPI_RESULTS_FRAME_OBJ_NUM];
627 };
628 
629 typedef
630 acpi_status (*acpi_parse_downwards) (struct acpi_walk_state * walk_state,
631 				     union acpi_parse_object ** out_op);
632 
633 typedef
634 acpi_status (*acpi_parse_upwards) (struct acpi_walk_state * walk_state);
635 
636 /* Global handlers for AML Notifies */
637 
638 struct acpi_global_notify_handler {
639 	acpi_notify_handler handler;
640 	void *context;
641 };
642 
643 /*
644  * Notify info - used to pass info to the deferred notify
645  * handler/dispatcher.
646  */
647 struct acpi_notify_info {
648 	ACPI_STATE_COMMON u8 handler_list_id;
649 	struct acpi_namespace_node *node;
650 	union acpi_operand_object *handler_list_head;
651 	struct acpi_global_notify_handler *global;
652 };
653 
654 /* Generic state is union of structs above */
655 
656 union acpi_generic_state {
657 	struct acpi_common_state common;
658 	struct acpi_control_state control;
659 	struct acpi_update_state update;
660 	struct acpi_scope_state scope;
661 	struct acpi_pscope_state parse_scope;
662 	struct acpi_pkg_state pkg;
663 	struct acpi_thread_state thread;
664 	struct acpi_result_values results;
665 	struct acpi_notify_info notify;
666 };
667 
668 /*****************************************************************************
669  *
670  * Interpreter typedefs and structs
671  *
672  ****************************************************************************/
673 
674 typedef
675 acpi_status (*acpi_execute_op) (struct acpi_walk_state * walk_state);
676 
677 /* Address Range info block */
678 
679 struct acpi_address_range {
680 	struct acpi_address_range *next;
681 	struct acpi_namespace_node *region_node;
682 	acpi_physical_address start_address;
683 	acpi_physical_address end_address;
684 };
685 
686 /*****************************************************************************
687  *
688  * Parser typedefs and structs
689  *
690  ****************************************************************************/
691 
692 /*
693  * AML opcode, name, and argument layout
694  */
695 struct acpi_opcode_info {
696 #if defined(ACPI_DISASSEMBLER) || defined(ACPI_DEBUG_OUTPUT)
697 	char *name;		/* Opcode name (disassembler/debug only) */
698 #endif
699 	u32 parse_args;		/* Grammar/Parse time arguments */
700 	u32 runtime_args;	/* Interpret time arguments */
701 	u16 flags;		/* Misc flags */
702 	u8 object_type;		/* Corresponding internal object type */
703 	u8 class;		/* Opcode class */
704 	u8 type;		/* Opcode type */
705 };
706 
707 /* Value associated with the parse object */
708 
709 union acpi_parse_value {
710 	u64 integer;		/* Integer constant (Up to 64 bits) */
711 	u32 size;		/* bytelist or field size */
712 	char *string;		/* NULL terminated string */
713 	u8 *buffer;		/* buffer or string */
714 	char *name;		/* NULL terminated string */
715 	union acpi_parse_object *arg;	/* arguments and contained ops */
716 };
717 
718 #if defined(ACPI_DISASSEMBLER) || defined(ACPI_DEBUG_OUTPUT)
719 #define ACPI_DISASM_ONLY_MEMBERS(a)     a;
720 #else
721 #define ACPI_DISASM_ONLY_MEMBERS(a)
722 #endif
723 
724 #if defined(ACPI_ASL_COMPILER)
725 #define ACPI_CONVERTER_ONLY_MEMBERS(a)  a;
726 #else
727 #define ACPI_CONVERTER_ONLY_MEMBERS(a)
728 #endif
729 
730 #define ACPI_PARSE_COMMON \
731 	union acpi_parse_object         *parent;            /* Parent op */\
732 	u8                              descriptor_type;    /* To differentiate various internal objs */\
733 	u8                              flags;              /* Type of Op */\
734 	u16                             aml_opcode;         /* AML opcode */\
735 	u8                              *aml;               /* Address of declaration in AML */\
736 	union acpi_parse_object         *next;              /* Next op */\
737 	struct acpi_namespace_node      *node;              /* For use by interpreter */\
738 	union acpi_parse_value          value;              /* Value or args associated with the opcode */\
739 	u8                              arg_list_length;    /* Number of elements in the arg list */\
740 	 ACPI_DISASM_ONLY_MEMBERS (\
741 	u16                             disasm_flags;       /* Used during AML disassembly */\
742 	u8                              disasm_opcode;      /* Subtype used for disassembly */\
743 	char                            *operator_symbol;   /* Used for C-style operator name strings */\
744 	char                            aml_op_name[16])    /* Op name (debug only) */\
745 	 ACPI_CONVERTER_ONLY_MEMBERS (\
746 	char                            *inline_comment;    /* Inline comment */\
747 	char                            *end_node_comment;  /* End of node comment */\
748 	char                            *name_comment;      /* Comment associated with the first parameter of the name node */\
749 	char                            *close_brace_comment; /* Comments that come after } on the same as } */\
750 	struct acpi_comment_node        *comment_list;      /* comments that appears before this node */\
751 	struct acpi_comment_node        *end_blk_comment;   /* comments that at the end of a block but before ) or } */\
752 	char                            *cv_filename;       /* Filename associated with this node. Used for ASL/ASL+ converter */\
753 	char                            *cv_parent_filename)	/* Parent filename associated with this node. Used for ASL/ASL+ converter */
754 
755 /* categories of comments */
756 
757 typedef enum {
758 	STANDARD_COMMENT = 1,
759 	INLINE_COMMENT,
760 	ENDNODE_COMMENT,
761 	OPENBRACE_COMMENT,
762 	CLOSE_BRACE_COMMENT,
763 	STD_DEFBLK_COMMENT,
764 	END_DEFBLK_COMMENT,
765 	FILENAME_COMMENT,
766 	PARENTFILENAME_COMMENT,
767 	ENDBLK_COMMENT,
768 	INCLUDE_COMMENT
769 } asl_comment_types;
770 
771 /* Internal opcodes for disasm_opcode field above */
772 
773 #define ACPI_DASM_BUFFER                0x00	/* Buffer is a simple data buffer */
774 #define ACPI_DASM_RESOURCE              0x01	/* Buffer is a Resource Descriptor */
775 #define ACPI_DASM_STRING                0x02	/* Buffer is a ASCII string */
776 #define ACPI_DASM_UNICODE               0x03	/* Buffer is a Unicode string */
777 #define ACPI_DASM_PLD_METHOD            0x04	/* Buffer is a _PLD method bit-packed buffer */
778 #define ACPI_DASM_UUID                  0x05	/* Buffer is a UUID/GUID */
779 #define ACPI_DASM_EISAID                0x06	/* Integer is an EISAID */
780 #define ACPI_DASM_MATCHOP               0x07	/* Parent opcode is a Match() operator */
781 #define ACPI_DASM_LNOT_PREFIX           0x08	/* Start of a Lnot_equal (etc.) pair of opcodes */
782 #define ACPI_DASM_LNOT_SUFFIX           0x09	/* End  of a Lnot_equal (etc.) pair of opcodes */
783 #define ACPI_DASM_HID_STRING            0x0A	/* String is a _HID or _CID */
784 #define ACPI_DASM_IGNORE_SINGLE         0x0B	/* Ignore the opcode but not it's children */
785 #define ACPI_DASM_SWITCH                0x0C	/* While is a Switch */
786 #define ACPI_DASM_SWITCH_PREDICATE      0x0D	/* Object is a predicate for a Switch or Case block */
787 #define ACPI_DASM_CASE                  0x0E	/* If/Else is a Case in a Switch/Case block */
788 #define ACPI_DASM_DEFAULT               0x0F	/* Else is a Default in a Switch/Case block */
789 
790 /*
791  * List struct used in the -ca option
792  */
793 struct acpi_comment_node {
794 	char *comment;
795 	struct acpi_comment_node *next;
796 };
797 
798 struct acpi_comment_addr_node {
799 	u8 *addr;
800 	struct acpi_comment_addr_node *next;
801 };
802 
803 /*
804  * File node - used for "Include" operator file stack and
805  * dependency tree for the -ca option
806  */
807 struct acpi_file_node {
808 	void *file;
809 	char *filename;
810 	char *file_start;	/* Points to AML and indicates when the AML for this particular file starts. */
811 	char *file_end;		/* Points to AML and indicates when the AML for this particular file ends. */
812 	struct acpi_file_node *next;
813 	struct acpi_file_node *parent;
814 	u8 include_written;
815 	struct acpi_comment_node *include_comment;
816 };
817 
818 /*
819  * Generic operation (for example:  If, While, Store)
820  */
821 struct acpi_parse_obj_common {
822 ACPI_PARSE_COMMON};
823 
824 /*
825  * Extended Op for named ops (Scope, Method, etc.), deferred ops (Methods and op_regions),
826  * and bytelists.
827  */
828 struct acpi_parse_obj_named {
829 	ACPI_PARSE_COMMON char *path;
830 	u8 *data;		/* AML body or bytelist data */
831 	u32 length;		/* AML length */
832 	u32 name;		/* 4-byte name or zero if no name */
833 };
834 
835 /* This version is used by the iASL compiler only */
836 
837 #define ACPI_MAX_PARSEOP_NAME       20
838 
839 struct acpi_parse_obj_asl {
840 	ACPI_PARSE_COMMON union acpi_parse_object *child;
841 	union acpi_parse_object *parent_method;
842 	char *filename;
843 	u8 file_changed;
844 	char *parent_filename;
845 	char *external_name;
846 	char *namepath;
847 	char name_seg[4];
848 	u32 extra_value;
849 	u32 column;
850 	u32 line_number;
851 	u32 logical_line_number;
852 	u32 logical_byte_offset;
853 	u32 end_line;
854 	u32 end_logical_line;
855 	u32 acpi_btype;
856 	u32 aml_length;
857 	u32 aml_subtree_length;
858 	u32 final_aml_length;
859 	u32 final_aml_offset;
860 	u32 compile_flags;
861 	u16 parse_opcode;
862 	u8 aml_opcode_length;
863 	u8 aml_pkg_len_bytes;
864 	u8 extra;
865 	char parse_op_name[ACPI_MAX_PARSEOP_NAME];
866 };
867 
868 union acpi_parse_object {
869 	struct acpi_parse_obj_common common;
870 	struct acpi_parse_obj_named named;
871 	struct acpi_parse_obj_asl asl;
872 };
873 
874 struct asl_comment_state {
875 	u8 comment_type;
876 	u32 spaces_before;
877 	union acpi_parse_object *latest_parse_op;
878 	union acpi_parse_object *parsing_paren_brace_node;
879 	u8 capture_comments;
880 };
881 
882 /*
883  * Parse state - one state per parser invocation and each control
884  * method.
885  */
886 struct acpi_parse_state {
887 	u8 *aml_start;		/* First AML byte */
888 	u8 *aml;		/* Next AML byte */
889 	u8 *aml_end;		/* (last + 1) AML byte */
890 	u8 *pkg_start;		/* Current package begin */
891 	u8 *pkg_end;		/* Current package end */
892 	union acpi_parse_object *start_op;	/* Root of parse tree */
893 	struct acpi_namespace_node *start_node;
894 	union acpi_generic_state *scope;	/* Current scope */
895 	union acpi_parse_object *start_scope;
896 	u32 aml_size;
897 };
898 
899 /* Parse object flags */
900 
901 #define ACPI_PARSEOP_GENERIC                0x01
902 #define ACPI_PARSEOP_NAMED_OBJECT           0x02
903 #define ACPI_PARSEOP_DEFERRED               0x04
904 #define ACPI_PARSEOP_BYTELIST               0x08
905 #define ACPI_PARSEOP_IN_STACK               0x10
906 #define ACPI_PARSEOP_TARGET                 0x20
907 #define ACPI_PARSEOP_IN_CACHE               0x80
908 
909 /* Parse object disasm_flags */
910 
911 #define ACPI_PARSEOP_IGNORE                 0x0001
912 #define ACPI_PARSEOP_PARAMETER_LIST         0x0002
913 #define ACPI_PARSEOP_EMPTY_TERMLIST         0x0004
914 #define ACPI_PARSEOP_PREDEFINED_CHECKED     0x0008
915 #define ACPI_PARSEOP_CLOSING_PAREN          0x0010
916 #define ACPI_PARSEOP_COMPOUND_ASSIGNMENT    0x0020
917 #define ACPI_PARSEOP_ASSIGNMENT             0x0040
918 #define ACPI_PARSEOP_ELSEIF                 0x0080
919 #define ACPI_PARSEOP_LEGACY_ASL_ONLY        0x0100
920 
921 /*****************************************************************************
922  *
923  * Hardware (ACPI registers) and PNP
924  *
925  ****************************************************************************/
926 
927 struct acpi_bit_register_info {
928 	u8 parent_register;
929 	u8 bit_position;
930 	u16 access_bit_mask;
931 };
932 
933 /*
934  * Some ACPI registers have bits that must be ignored -- meaning that they
935  * must be preserved.
936  */
937 #define ACPI_PM1_STATUS_PRESERVED_BITS          0x0800	/* Bit 11 */
938 
939 /* Write-only bits must be zeroed by software */
940 
941 #define ACPI_PM1_CONTROL_WRITEONLY_BITS         0x2004	/* Bits 13, 2 */
942 
943 /* For control registers, both ignored and reserved bits must be preserved */
944 
945 /*
946  * For PM1 control, the SCI enable bit (bit 0, SCI_EN) is defined by the
947  * ACPI specification to be a "preserved" bit - "OSPM always preserves this
948  * bit position", section 4.7.3.2.1. However, on some machines the OS must
949  * write a one to this bit after resume for the machine to work properly.
950  * To enable this, we no longer attempt to preserve this bit. No machines
951  * are known to fail if the bit is not preserved. (May 2009)
952  */
953 #define ACPI_PM1_CONTROL_IGNORED_BITS           0x0200	/* Bit 9 */
954 #define ACPI_PM1_CONTROL_RESERVED_BITS          0xC1F8	/* Bits 14-15, 3-8 */
955 #define ACPI_PM1_CONTROL_PRESERVED_BITS \
956 	       (ACPI_PM1_CONTROL_IGNORED_BITS | ACPI_PM1_CONTROL_RESERVED_BITS)
957 
958 #define ACPI_PM2_CONTROL_PRESERVED_BITS         0xFFFFFFFE	/* All except bit 0 */
959 
960 /*
961  * Register IDs
962  * These are the full ACPI registers
963  */
964 #define ACPI_REGISTER_PM1_STATUS                0x01
965 #define ACPI_REGISTER_PM1_ENABLE                0x02
966 #define ACPI_REGISTER_PM1_CONTROL               0x03
967 #define ACPI_REGISTER_PM2_CONTROL               0x04
968 #define ACPI_REGISTER_PM_TIMER                  0x05
969 #define ACPI_REGISTER_PROCESSOR_BLOCK           0x06
970 #define ACPI_REGISTER_SMI_COMMAND_BLOCK         0x07
971 
972 /* Masks used to access the bit_registers */
973 
974 #define ACPI_BITMASK_TIMER_STATUS               0x0001
975 #define ACPI_BITMASK_BUS_MASTER_STATUS          0x0010
976 #define ACPI_BITMASK_GLOBAL_LOCK_STATUS         0x0020
977 #define ACPI_BITMASK_POWER_BUTTON_STATUS        0x0100
978 #define ACPI_BITMASK_SLEEP_BUTTON_STATUS        0x0200
979 #define ACPI_BITMASK_RT_CLOCK_STATUS            0x0400
980 #define ACPI_BITMASK_PCIEXP_WAKE_STATUS         0x4000	/* ACPI 3.0 */
981 #define ACPI_BITMASK_WAKE_STATUS                0x8000
982 
983 #define ACPI_BITMASK_ALL_FIXED_STATUS           (\
984 	ACPI_BITMASK_TIMER_STATUS          | \
985 	ACPI_BITMASK_BUS_MASTER_STATUS     | \
986 	ACPI_BITMASK_GLOBAL_LOCK_STATUS    | \
987 	ACPI_BITMASK_POWER_BUTTON_STATUS   | \
988 	ACPI_BITMASK_SLEEP_BUTTON_STATUS   | \
989 	ACPI_BITMASK_RT_CLOCK_STATUS       | \
990 	ACPI_BITMASK_PCIEXP_WAKE_STATUS    | \
991 	ACPI_BITMASK_WAKE_STATUS)
992 
993 #define ACPI_BITMASK_TIMER_ENABLE               0x0001
994 #define ACPI_BITMASK_GLOBAL_LOCK_ENABLE         0x0020
995 #define ACPI_BITMASK_POWER_BUTTON_ENABLE        0x0100
996 #define ACPI_BITMASK_SLEEP_BUTTON_ENABLE        0x0200
997 #define ACPI_BITMASK_RT_CLOCK_ENABLE            0x0400
998 #define ACPI_BITMASK_PCIEXP_WAKE_DISABLE        0x4000	/* ACPI 3.0 */
999 
1000 #define ACPI_BITMASK_SCI_ENABLE                 0x0001
1001 #define ACPI_BITMASK_BUS_MASTER_RLD             0x0002
1002 #define ACPI_BITMASK_GLOBAL_LOCK_RELEASE        0x0004
1003 #define ACPI_BITMASK_SLEEP_TYPE                 0x1C00
1004 #define ACPI_BITMASK_SLEEP_ENABLE               0x2000
1005 
1006 #define ACPI_BITMASK_ARB_DISABLE                0x0001
1007 
1008 /* Raw bit position of each bit_register */
1009 
1010 #define ACPI_BITPOSITION_TIMER_STATUS           0x00
1011 #define ACPI_BITPOSITION_BUS_MASTER_STATUS      0x04
1012 #define ACPI_BITPOSITION_GLOBAL_LOCK_STATUS     0x05
1013 #define ACPI_BITPOSITION_POWER_BUTTON_STATUS    0x08
1014 #define ACPI_BITPOSITION_SLEEP_BUTTON_STATUS    0x09
1015 #define ACPI_BITPOSITION_RT_CLOCK_STATUS        0x0A
1016 #define ACPI_BITPOSITION_PCIEXP_WAKE_STATUS     0x0E	/* ACPI 3.0 */
1017 #define ACPI_BITPOSITION_WAKE_STATUS            0x0F
1018 
1019 #define ACPI_BITPOSITION_TIMER_ENABLE           0x00
1020 #define ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE     0x05
1021 #define ACPI_BITPOSITION_POWER_BUTTON_ENABLE    0x08
1022 #define ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE    0x09
1023 #define ACPI_BITPOSITION_RT_CLOCK_ENABLE        0x0A
1024 #define ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE    0x0E	/* ACPI 3.0 */
1025 
1026 #define ACPI_BITPOSITION_SCI_ENABLE             0x00
1027 #define ACPI_BITPOSITION_BUS_MASTER_RLD         0x01
1028 #define ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE    0x02
1029 #define ACPI_BITPOSITION_SLEEP_TYPE             0x0A
1030 #define ACPI_BITPOSITION_SLEEP_ENABLE           0x0D
1031 
1032 #define ACPI_BITPOSITION_ARB_DISABLE            0x00
1033 
1034 /* Structs and definitions for _OSI support and I/O port validation */
1035 
1036 #define ACPI_ALWAYS_ILLEGAL             0x00
1037 
1038 struct acpi_interface_info {
1039 	char *name;
1040 	struct acpi_interface_info *next;
1041 	u8 flags;
1042 	u8 value;
1043 };
1044 
1045 #define ACPI_OSI_INVALID                0x01
1046 #define ACPI_OSI_DYNAMIC                0x02
1047 #define ACPI_OSI_FEATURE                0x04
1048 #define ACPI_OSI_DEFAULT_INVALID        0x08
1049 #define ACPI_OSI_OPTIONAL_FEATURE       (ACPI_OSI_FEATURE | ACPI_OSI_DEFAULT_INVALID | ACPI_OSI_INVALID)
1050 
1051 struct acpi_port_info {
1052 	char *name;
1053 	u16 start;
1054 	u16 end;
1055 	u8 osi_dependency;
1056 };
1057 
1058 /*****************************************************************************
1059  *
1060  * Resource descriptors
1061  *
1062  ****************************************************************************/
1063 
1064 /* resource_type values */
1065 
1066 #define ACPI_ADDRESS_TYPE_MEMORY_RANGE          0
1067 #define ACPI_ADDRESS_TYPE_IO_RANGE              1
1068 #define ACPI_ADDRESS_TYPE_BUS_NUMBER_RANGE      2
1069 
1070 /* Resource descriptor types and masks */
1071 
1072 #define ACPI_RESOURCE_NAME_LARGE                0x80
1073 #define ACPI_RESOURCE_NAME_SMALL                0x00
1074 
1075 #define ACPI_RESOURCE_NAME_SMALL_MASK           0x78	/* Bits 6:3 contain the type */
1076 #define ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK    0x07	/* Bits 2:0 contain the length */
1077 #define ACPI_RESOURCE_NAME_LARGE_MASK           0x7F	/* Bits 6:0 contain the type */
1078 
1079 /*
1080  * Small resource descriptor "names" as defined by the ACPI specification.
1081  * Note: Bits 2:0 are used for the descriptor length
1082  */
1083 #define ACPI_RESOURCE_NAME_IRQ                  0x20
1084 #define ACPI_RESOURCE_NAME_DMA                  0x28
1085 #define ACPI_RESOURCE_NAME_START_DEPENDENT      0x30
1086 #define ACPI_RESOURCE_NAME_END_DEPENDENT        0x38
1087 #define ACPI_RESOURCE_NAME_IO                   0x40
1088 #define ACPI_RESOURCE_NAME_FIXED_IO             0x48
1089 #define ACPI_RESOURCE_NAME_FIXED_DMA            0x50
1090 #define ACPI_RESOURCE_NAME_RESERVED_S2          0x58
1091 #define ACPI_RESOURCE_NAME_RESERVED_S3          0x60
1092 #define ACPI_RESOURCE_NAME_RESERVED_S4          0x68
1093 #define ACPI_RESOURCE_NAME_VENDOR_SMALL         0x70
1094 #define ACPI_RESOURCE_NAME_END_TAG              0x78
1095 
1096 /*
1097  * Large resource descriptor "names" as defined by the ACPI specification.
1098  * Note: includes the Large Descriptor bit in bit[7]
1099  */
1100 #define ACPI_RESOURCE_NAME_MEMORY24             0x81
1101 #define ACPI_RESOURCE_NAME_GENERIC_REGISTER     0x82
1102 #define ACPI_RESOURCE_NAME_RESERVED_L1          0x83
1103 #define ACPI_RESOURCE_NAME_VENDOR_LARGE         0x84
1104 #define ACPI_RESOURCE_NAME_MEMORY32             0x85
1105 #define ACPI_RESOURCE_NAME_FIXED_MEMORY32       0x86
1106 #define ACPI_RESOURCE_NAME_ADDRESS32            0x87
1107 #define ACPI_RESOURCE_NAME_ADDRESS16            0x88
1108 #define ACPI_RESOURCE_NAME_EXTENDED_IRQ         0x89
1109 #define ACPI_RESOURCE_NAME_ADDRESS64            0x8A
1110 #define ACPI_RESOURCE_NAME_EXTENDED_ADDRESS64   0x8B
1111 #define ACPI_RESOURCE_NAME_GPIO                 0x8C
1112 #define ACPI_RESOURCE_NAME_PIN_FUNCTION         0x8D
1113 #define ACPI_RESOURCE_NAME_SERIAL_BUS           0x8E
1114 #define ACPI_RESOURCE_NAME_PIN_CONFIG           0x8F
1115 #define ACPI_RESOURCE_NAME_PIN_GROUP            0x90
1116 #define ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION   0x91
1117 #define ACPI_RESOURCE_NAME_PIN_GROUP_CONFIG     0x92
1118 #define ACPI_RESOURCE_NAME_LARGE_MAX            0x92
1119 
1120 /*****************************************************************************
1121  *
1122  * Miscellaneous
1123  *
1124  ****************************************************************************/
1125 
1126 #define ACPI_ASCII_ZERO                 0x30
1127 
1128 /*****************************************************************************
1129  *
1130  * Disassembler
1131  *
1132  ****************************************************************************/
1133 
1134 struct acpi_external_list {
1135 	char *path;
1136 	char *internal_path;
1137 	struct acpi_external_list *next;
1138 	u32 value;
1139 	u16 length;
1140 	u16 flags;
1141 	u8 type;
1142 };
1143 
1144 /* Values for Flags field above */
1145 
1146 #define ACPI_EXT_RESOLVED_REFERENCE         0x01	/* Object was resolved during cross ref */
1147 #define ACPI_EXT_ORIGIN_FROM_FILE           0x02	/* External came from a file */
1148 #define ACPI_EXT_INTERNAL_PATH_ALLOCATED    0x04	/* Deallocate internal path on completion */
1149 #define ACPI_EXT_EXTERNAL_EMITTED           0x08	/* External() statement has been emitted */
1150 #define ACPI_EXT_ORIGIN_FROM_OPCODE         0x10	/* External came from a External() opcode */
1151 #define ACPI_EXT_CONFLICTING_DECLARATION    0x20	/* External has a conflicting declaration within AML */
1152 
1153 struct acpi_external_file {
1154 	char *path;
1155 	struct acpi_external_file *next;
1156 };
1157 
1158 struct acpi_parse_object_list {
1159 	union acpi_parse_object *op;
1160 	struct acpi_parse_object_list *next;
1161 };
1162 
1163 /*****************************************************************************
1164  *
1165  * Debugger
1166  *
1167  ****************************************************************************/
1168 
1169 struct acpi_db_method_info {
1170 	acpi_handle method;
1171 	acpi_handle main_thread_gate;
1172 	acpi_handle thread_complete_gate;
1173 	acpi_handle info_gate;
1174 	acpi_thread_id *threads;
1175 	u32 num_threads;
1176 	u32 num_created;
1177 	u32 num_completed;
1178 
1179 	char *name;
1180 	u32 flags;
1181 	u32 num_loops;
1182 	char pathname[ACPI_DB_LINE_BUFFER_SIZE];
1183 	char **args;
1184 	acpi_object_type *types;
1185 
1186 	/*
1187 	 * Arguments to be passed to method for the commands Threads and
1188 	 * Background. Note, ACPI specifies a maximum of 7 arguments (0 - 6).
1189 	 *
1190 	 * For the Threads command, the Number of threads, ID of current
1191 	 * thread and Index of current thread inside all them created.
1192 	 */
1193 	char init_args;
1194 #ifdef ACPI_DEBUGGER
1195 	acpi_object_type arg_types[ACPI_METHOD_NUM_ARGS];
1196 #endif
1197 	char *arguments[ACPI_METHOD_NUM_ARGS];
1198 	char num_threads_str[11];
1199 	char id_of_thread_str[11];
1200 	char index_of_thread_str[11];
1201 };
1202 
1203 struct acpi_integrity_info {
1204 	u32 nodes;
1205 	u32 objects;
1206 };
1207 
1208 #define ACPI_DB_DISABLE_OUTPUT          0x00
1209 #define ACPI_DB_REDIRECTABLE_OUTPUT     0x01
1210 #define ACPI_DB_CONSOLE_OUTPUT          0x02
1211 #define ACPI_DB_DUPLICATE_OUTPUT        0x03
1212 
1213 struct acpi_object_info {
1214 	u32 types[ACPI_TOTAL_TYPES];
1215 };
1216 
1217 /*****************************************************************************
1218  *
1219  * Debug
1220  *
1221  ****************************************************************************/
1222 
1223 /* Entry for a memory allocation (debug only) */
1224 
1225 #define ACPI_MEM_MALLOC                 0
1226 #define ACPI_MEM_CALLOC                 1
1227 #define ACPI_MAX_MODULE_NAME            16
1228 
1229 #define ACPI_COMMON_DEBUG_MEM_HEADER \
1230 	struct acpi_debug_mem_block     *previous; \
1231 	struct acpi_debug_mem_block     *next; \
1232 	u32                             size; \
1233 	u32                             component; \
1234 	u32                             line; \
1235 	char                            module[ACPI_MAX_MODULE_NAME]; \
1236 	u8                              alloc_type;
1237 
1238 struct acpi_debug_mem_header {
1239 ACPI_COMMON_DEBUG_MEM_HEADER};
1240 
1241 struct acpi_debug_mem_block {
1242 	ACPI_COMMON_DEBUG_MEM_HEADER u64 user_space;
1243 };
1244 
1245 #define ACPI_MEM_LIST_GLOBAL            0
1246 #define ACPI_MEM_LIST_NSNODE            1
1247 #define ACPI_MEM_LIST_MAX               1
1248 #define ACPI_NUM_MEM_LISTS              2
1249 
1250 /*****************************************************************************
1251  *
1252  * Info/help support
1253  *
1254  ****************************************************************************/
1255 
1256 struct ah_predefined_name {
1257 	char *name;
1258 	char *description;
1259 #ifndef ACPI_ASL_COMPILER
1260 	char *action;
1261 #endif
1262 };
1263 
1264 struct ah_device_id {
1265 	char *name;
1266 	char *description;
1267 };
1268 
1269 struct ah_uuid {
1270 	char *description;
1271 	char *string;
1272 };
1273 
1274 struct ah_table {
1275 	char *signature;
1276 	char *description;
1277 };
1278 
1279 #endif				/* __ACLOCAL_H__ */
1280