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linux-next/include/acpi/acglobal.h
Robert Moore f9f4601f33 ACPICA 20050708 from Bob Moore <robert.moore@intel.com> 
The use of the CPU stack in the debug version of the
subsystem has been considerably reduced.  Previously, a
debug structure was declared in every function that used
the debug macros.  This structure has been removed in
favor of declaring the individual elements as parameters
to the debug functions.  This reduces the cumulative stack
use during nested execution of ACPI function calls at the
cost of a small increase in the code size of the debug
version of the subsystem.  With assistance from Alexey
Starikovskiy and Len Brown.

Added the ACPI_GET_FUNCTION_NAME macro to enable the
compiler-dependent headers to define a macro that will
return the current function name at runtime (such as
__FUNCTION__ or _func_, etc.) The function name is used
by the debug trace output.  If ACPI_GET_FUNCTION_NAME
is not defined in the compiler-dependent header, the
function name is saved on the CPU stack (one pointer per
function.) This mechanism is used because apparently there
exists no standard ANSI-C defined macro that that returns
the function name.

Alexey Starikovskiy redesigned and reimplemented the
"Owner ID" mechanism used to track namespace objects
created/deleted by ACPI tables and control method
execution.  A bitmap is now used to allocate and free the
IDs, thus solving the wraparound problem present in the
previous implementation.  The size of the namespace node
descriptor was reduced by 2 bytes as a result.

Removed the UINT32_BIT and UINT16_BIT types that were used
for the bitfield flag definitions within the headers for
the predefined ACPI tables.  These have been replaced by
UINT8_BIT in order to increase the code portability of
the subsystem.  If the use of UINT8 remains a problem,
we may be forced to eliminate bitfields entirely because
of a lack of portability.

Alexey Starikovksiy enhanced the performance of
acpi_ut_update_object_reference.  This is a frequently used
function and this improvement increases the performance
of the entire subsystem.

Alexey Starikovskiy fixed several possible memory leaks
and the inverse - premature object deletion.

Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-14 00:42:23 -04:00

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/******************************************************************************
*
* Name: acglobal.h - Declarations for global variables
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2005, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#ifndef __ACGLOBAL_H__
#define __ACGLOBAL_H__
/*
* Ensure that the globals are actually defined and initialized only once.
*
* The use of these macros allows a single list of globals (here) in order
* to simplify maintenance of the code.
*/
#ifdef DEFINE_ACPI_GLOBALS
#define ACPI_EXTERN
#define ACPI_INIT_GLOBAL(a,b) a=b
#else
#define ACPI_EXTERN extern
#define ACPI_INIT_GLOBAL(a,b) a
#endif
/*
* Keep local copies of these FADT-based registers. NOTE: These globals
* are first in this file for alignment reasons on 64-bit systems.
*/
ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_enable;
ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_enable;
/*****************************************************************************
*
* Debug support
*
****************************************************************************/
/* Runtime configuration of debug print levels */
extern u32 acpi_dbg_level;
extern u32 acpi_dbg_layer;
/* Procedure nesting level for debug output */
extern u32 acpi_gbl_nesting_level;
/*****************************************************************************
*
* Runtime configuration (static defaults that can be overriden at runtime)
*
****************************************************************************/
/*
* Enable "slack" in the AML interpreter? Default is FALSE, and the
* interpreter strictly follows the ACPI specification. Setting to TRUE
* allows the interpreter to forgive certain bad AML constructs. Currently:
* 1) Allow "implicit return" of last value in a control method
* 2) Allow access beyond end of operation region
* 3) Allow access to uninitialized locals/args (auto-init to integer 0)
* 4) Allow ANY object type to be a source operand for the Store() operator
*/
ACPI_EXTERN u8 ACPI_INIT_GLOBAL (acpi_gbl_enable_interpreter_slack, FALSE);
/*
* Automatically serialize ALL control methods? Default is FALSE, meaning
* to use the Serialized/not_serialized method flags on a per method basis.
* Only change this if the ASL code is poorly written and cannot handle
* reentrancy even though methods are marked "not_serialized".
*/
ACPI_EXTERN u8 ACPI_INIT_GLOBAL (acpi_gbl_all_methods_serialized, FALSE);
/*
* Create the predefined _OSI method in the namespace? Default is TRUE
* because ACPI CA is fully compatible with other ACPI implementations.
* Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior.
*/
ACPI_EXTERN u8 ACPI_INIT_GLOBAL (acpi_gbl_create_osi_method, TRUE);
/*
* Disable wakeup GPEs during runtime? Default is TRUE because WAKE and
* RUNTIME GPEs should never be shared, and WAKE GPEs should typically only
* be enabled just before going to sleep.
*/
ACPI_EXTERN u8 ACPI_INIT_GLOBAL (acpi_gbl_leave_wake_gpes_disabled, TRUE);
/*****************************************************************************
*
* ACPI Table globals
*
****************************************************************************/
/*
* Table pointers.
* Although these pointers are somewhat redundant with the global acpi_table,
* they are convenient because they are typed pointers.
*
* These tables are single-table only; meaning that there can be at most one
* of each in the system. Each global points to the actual table.
*/
ACPI_EXTERN u32 acpi_gbl_table_flags;
ACPI_EXTERN u32 acpi_gbl_rsdt_table_count;
ACPI_EXTERN struct rsdp_descriptor *acpi_gbl_RSDP;
ACPI_EXTERN XSDT_DESCRIPTOR *acpi_gbl_XSDT;
ACPI_EXTERN FADT_DESCRIPTOR *acpi_gbl_FADT;
ACPI_EXTERN struct acpi_table_header *acpi_gbl_DSDT;
ACPI_EXTERN FACS_DESCRIPTOR *acpi_gbl_FACS;
ACPI_EXTERN struct acpi_common_facs acpi_gbl_common_fACS;
/*
* Since there may be multiple SSDTs and PSDTs, a single pointer is not
* sufficient; Therefore, there isn't one!
*/
/* The root table can be either an RSDT or an XSDT */
ACPI_EXTERN u8 acpi_gbl_root_table_type;
#define ACPI_TABLE_TYPE_RSDT 'R'
#define ACPI_TABLE_TYPE_XSDT 'X'
/*
* Handle both ACPI 1.0 and ACPI 2.0 Integer widths:
* If we are executing a method that exists in a 32-bit ACPI table,
* use only the lower 32 bits of the (internal) 64-bit Integer.
*/
ACPI_EXTERN u8 acpi_gbl_integer_bit_width;
ACPI_EXTERN u8 acpi_gbl_integer_byte_width;
ACPI_EXTERN u8 acpi_gbl_integer_nybble_width;
/*
* ACPI Table info arrays
*/
extern struct acpi_table_list acpi_gbl_table_lists[NUM_ACPI_TABLE_TYPES];
extern struct acpi_table_support acpi_gbl_table_data[NUM_ACPI_TABLE_TYPES];
/*
* Predefined mutex objects. This array contains the
* actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
* (The table maps local handles to the real OS handles)
*/
ACPI_EXTERN struct acpi_mutex_info acpi_gbl_mutex_info[NUM_MUTEX];
/*****************************************************************************
*
* Miscellaneous globals
*
****************************************************************************/
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
/* Lists for tracking memory allocations */
ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list;
ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list;
#endif
/* Object caches */
ACPI_EXTERN acpi_cache_t *acpi_gbl_state_cache;
ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_cache;
ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_ext_cache;
ACPI_EXTERN acpi_cache_t *acpi_gbl_operand_cache;
/* Global handlers */
ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_device_notify;
ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_system_notify;
ACPI_EXTERN acpi_exception_handler acpi_gbl_exception_handler;
ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler;
ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk;
ACPI_EXTERN acpi_handle acpi_gbl_global_lock_semaphore;
/* Misc */
ACPI_EXTERN u32 acpi_gbl_global_lock_thread_count;
ACPI_EXTERN u32 acpi_gbl_original_mode;
ACPI_EXTERN u32 acpi_gbl_rsdp_original_location;
ACPI_EXTERN u32 acpi_gbl_ns_lookup_count;
ACPI_EXTERN u32 acpi_gbl_ps_find_count;
ACPI_EXTERN u32 acpi_gbl_owner_id_mask;
ACPI_EXTERN u16 acpi_gbl_pm1_enable_register_save;
ACPI_EXTERN u16 acpi_gbl_global_lock_handle;
ACPI_EXTERN u8 acpi_gbl_debugger_configuration;
ACPI_EXTERN u8 acpi_gbl_global_lock_acquired;
ACPI_EXTERN u8 acpi_gbl_step_to_next_call;
ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present;
ACPI_EXTERN u8 acpi_gbl_global_lock_present;
ACPI_EXTERN u8 acpi_gbl_events_initialized;
ACPI_EXTERN u8 acpi_gbl_system_awake_and_running;
extern u8 acpi_gbl_shutdown;
extern u32 acpi_gbl_startup_flags;
extern const u8 acpi_gbl_decode_to8bit[8];
extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
extern const char *acpi_gbl_highest_dstate_names[4];
extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
extern const char *acpi_gbl_valid_osi_strings[ACPI_NUM_OSI_STRINGS];
/*****************************************************************************
*
* Namespace globals
*
****************************************************************************/
#define NUM_NS_TYPES ACPI_TYPE_INVALID+1
#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
#define NUM_PREDEFINED_NAMES 10
#else
#define NUM_PREDEFINED_NAMES 9
#endif
ACPI_EXTERN struct acpi_namespace_node acpi_gbl_root_node_struct;
ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_root_node;
ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_fadt_gpe_device;
extern const u8 acpi_gbl_ns_properties[NUM_NS_TYPES];
extern const struct acpi_predefined_names acpi_gbl_pre_defined_names [NUM_PREDEFINED_NAMES];
#ifdef ACPI_DEBUG_OUTPUT
ACPI_EXTERN u32 acpi_gbl_current_node_count;
ACPI_EXTERN u32 acpi_gbl_current_node_size;
ACPI_EXTERN u32 acpi_gbl_max_concurrent_node_count;
ACPI_EXTERN acpi_size acpi_gbl_entry_stack_pointer;
ACPI_EXTERN acpi_size acpi_gbl_lowest_stack_pointer;
ACPI_EXTERN u32 acpi_gbl_deepest_nesting;
#endif
/*****************************************************************************
*
* Interpreter globals
*
****************************************************************************/
ACPI_EXTERN struct acpi_thread_state *acpi_gbl_current_walk_list;
/* Control method single step flag */
ACPI_EXTERN u8 acpi_gbl_cm_single_step;
/*****************************************************************************
*
* Parser globals
*
****************************************************************************/
ACPI_EXTERN union acpi_parse_object *acpi_gbl_parsed_namespace_root;
/*****************************************************************************
*
* Hardware globals
*
****************************************************************************/
extern struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
ACPI_EXTERN u8 acpi_gbl_sleep_type_a;
ACPI_EXTERN u8 acpi_gbl_sleep_type_b;
/*****************************************************************************
*
* Event and GPE globals
*
****************************************************************************/
extern struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
ACPI_EXTERN struct acpi_fixed_event_handler acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS];
ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head;
ACPI_EXTERN struct acpi_gpe_block_info *acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS];
ACPI_EXTERN acpi_handle acpi_gbl_gpe_lock;
/*****************************************************************************
*
* Debugger globals
*
****************************************************************************/
ACPI_EXTERN u8 acpi_gbl_db_output_flags;
#ifdef ACPI_DISASSEMBLER
ACPI_EXTERN u8 acpi_gbl_db_opt_disasm;
ACPI_EXTERN u8 acpi_gbl_db_opt_verbose;
#endif
#ifdef ACPI_DEBUGGER
extern u8 acpi_gbl_method_executing;
extern u8 acpi_gbl_abort_method;
extern u8 acpi_gbl_db_terminate_threads;
ACPI_EXTERN int optind;
ACPI_EXTERN char *optarg;
ACPI_EXTERN u8 acpi_gbl_db_opt_tables;
ACPI_EXTERN u8 acpi_gbl_db_opt_stats;
ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods;
ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS];
ACPI_EXTERN char acpi_gbl_db_line_buf[80];
ACPI_EXTERN char acpi_gbl_db_parsed_buf[80];
ACPI_EXTERN char acpi_gbl_db_scope_buf[40];
ACPI_EXTERN char acpi_gbl_db_debug_filename[40];
ACPI_EXTERN u8 acpi_gbl_db_output_to_file;
ACPI_EXTERN char *acpi_gbl_db_buffer;
ACPI_EXTERN char *acpi_gbl_db_filename;
ACPI_EXTERN u32 acpi_gbl_db_debug_level;
ACPI_EXTERN u32 acpi_gbl_db_console_debug_level;
ACPI_EXTERN struct acpi_table_header *acpi_gbl_db_table_ptr;
ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node;
/*
* Statistic globals
*/
ACPI_EXTERN u16 acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX+1];
ACPI_EXTERN u16 acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX+1];
ACPI_EXTERN u16 acpi_gbl_obj_type_count_misc;
ACPI_EXTERN u16 acpi_gbl_node_type_count_misc;
ACPI_EXTERN u32 acpi_gbl_num_nodes;
ACPI_EXTERN u32 acpi_gbl_num_objects;
ACPI_EXTERN u32 acpi_gbl_size_of_parse_tree;
ACPI_EXTERN u32 acpi_gbl_size_of_method_trees;
ACPI_EXTERN u32 acpi_gbl_size_of_node_entries;
ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects;
#endif /* ACPI_DEBUGGER */
#endif /* __ACGLOBAL_H__ */
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