forked from Minki/linux
9a1fe2f27f
Commit 9cd0314 (ACPI / ACPICA: Fix global lock acquisition) forgot to
initialize the spinlock it added. Fix that.
Reported-and-tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
436 lines
15 KiB
C
436 lines
15 KiB
C
/******************************************************************************
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*
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* Name: acglobal.h - Declarations for global variables
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2010, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#ifndef __ACGLOBAL_H__
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#define __ACGLOBAL_H__
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/*
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* Ensure that the globals are actually defined and initialized only once.
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*
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* The use of these macros allows a single list of globals (here) in order
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* to simplify maintenance of the code.
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*/
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#ifdef DEFINE_ACPI_GLOBALS
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#define ACPI_EXTERN
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#define ACPI_INIT_GLOBAL(a,b) a=b
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#else
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#define ACPI_EXTERN extern
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#define ACPI_INIT_GLOBAL(a,b) a
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#endif
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#ifdef DEFINE_ACPI_GLOBALS
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/* Public globals, available from outside ACPICA subsystem */
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/*****************************************************************************
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*
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* Runtime configuration (static defaults that can be overriden at runtime)
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*
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****************************************************************************/
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/*
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* Enable "slack" in the AML interpreter? Default is FALSE, and the
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* interpreter strictly follows the ACPI specification. Setting to TRUE
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* allows the interpreter to ignore certain errors and/or bad AML constructs.
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*
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* Currently, these features are enabled by this flag:
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*
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* 1) Allow "implicit return" of last value in a control method
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* 2) Allow access beyond the end of an operation region
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* 3) Allow access to uninitialized locals/args (auto-init to integer 0)
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* 4) Allow ANY object type to be a source operand for the Store() operator
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* 5) Allow unresolved references (invalid target name) in package objects
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* 6) Enable warning messages for behavior that is not ACPI spec compliant
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*/
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u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE);
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/*
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* Automatically serialize ALL control methods? Default is FALSE, meaning
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* to use the Serialized/not_serialized method flags on a per method basis.
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* Only change this if the ASL code is poorly written and cannot handle
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* reentrancy even though methods are marked "NotSerialized".
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*/
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u8 ACPI_INIT_GLOBAL(acpi_gbl_all_methods_serialized, FALSE);
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/*
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* Create the predefined _OSI method in the namespace? Default is TRUE
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* because ACPI CA is fully compatible with other ACPI implementations.
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* Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior.
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*/
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u8 ACPI_INIT_GLOBAL(acpi_gbl_create_osi_method, TRUE);
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/*
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* Optionally use default values for the ACPI register widths. Set this to
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* TRUE to use the defaults, if an FADT contains incorrect widths/lengths.
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*/
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u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE);
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/*
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* Optionally enable output from the AML Debug Object.
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*/
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u32 ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE);
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/*
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* Optionally copy the entire DSDT to local memory (instead of simply
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* mapping it.) There are some BIOSs that corrupt or replace the original
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* DSDT, creating the need for this option. Default is FALSE, do not copy
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* the DSDT.
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*/
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u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE);
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/*
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* Optionally truncate I/O addresses to 16 bits. Provides compatibility
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* with other ACPI implementations. NOTE: During ACPICA initialization,
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* this value is set to TRUE if any Windows OSI strings have been
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* requested by the BIOS.
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*/
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u8 ACPI_INIT_GLOBAL(acpi_gbl_truncate_io_addresses, FALSE);
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/* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */
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struct acpi_table_fadt acpi_gbl_FADT;
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u32 acpi_current_gpe_count;
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u32 acpi_gbl_trace_flags;
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acpi_name acpi_gbl_trace_method_name;
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u8 acpi_gbl_system_awake_and_running;
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#endif
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/*****************************************************************************
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*
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* Debug support
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*
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****************************************************************************/
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/* Procedure nesting level for debug output */
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extern u32 acpi_gbl_nesting_level;
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ACPI_EXTERN u32 acpi_gpe_count;
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ACPI_EXTERN u32 acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS];
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/* Support for dynamic control method tracing mechanism */
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ACPI_EXTERN u32 acpi_gbl_original_dbg_level;
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ACPI_EXTERN u32 acpi_gbl_original_dbg_layer;
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ACPI_EXTERN u32 acpi_gbl_trace_dbg_level;
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ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer;
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/*****************************************************************************
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*
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* ACPI Table globals
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*
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****************************************************************************/
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/*
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* acpi_gbl_root_table_list is the master list of ACPI tables that were
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* found in the RSDT/XSDT.
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*/
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ACPI_EXTERN struct acpi_table_list acpi_gbl_root_table_list;
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ACPI_EXTERN struct acpi_table_facs *acpi_gbl_FACS;
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/* These addresses are calculated from the FADT Event Block addresses */
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ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_status;
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ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_enable;
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ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_status;
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ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1b_enable;
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/* DSDT information. Used to check for DSDT corruption */
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ACPI_EXTERN struct acpi_table_header *acpi_gbl_DSDT;
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ACPI_EXTERN struct acpi_table_header acpi_gbl_original_dsdt_header;
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/*
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* Handle both ACPI 1.0 and ACPI 2.0 Integer widths. The integer width is
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* determined by the revision of the DSDT: If the DSDT revision is less than
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* 2, use only the lower 32 bits of the internal 64-bit Integer.
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*/
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ACPI_EXTERN u8 acpi_gbl_integer_bit_width;
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ACPI_EXTERN u8 acpi_gbl_integer_byte_width;
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ACPI_EXTERN u8 acpi_gbl_integer_nybble_width;
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/* Mutex for _OSI support */
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ACPI_EXTERN acpi_mutex acpi_gbl_osi_mutex;
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/* Reader/Writer lock is used for namespace walk and dynamic table unload */
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ACPI_EXTERN struct acpi_rw_lock acpi_gbl_namespace_rw_lock;
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/*****************************************************************************
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*
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* Mutual exlusion within ACPICA subsystem
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*
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****************************************************************************/
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/*
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* Predefined mutex objects. This array contains the
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* actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
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* (The table maps local handles to the real OS handles)
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*/
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ACPI_EXTERN struct acpi_mutex_info acpi_gbl_mutex_info[ACPI_NUM_MUTEX];
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/*
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* Global lock mutex is an actual AML mutex object
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* Global lock semaphore works in conjunction with the HW global lock
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*/
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ACPI_EXTERN union acpi_operand_object *acpi_gbl_global_lock_mutex;
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ACPI_EXTERN acpi_semaphore acpi_gbl_global_lock_semaphore;
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ACPI_EXTERN u16 acpi_gbl_global_lock_handle;
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ACPI_EXTERN u8 acpi_gbl_global_lock_acquired;
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ACPI_EXTERN u8 acpi_gbl_global_lock_present;
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/*
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* Spinlocks are used for interfaces that can be possibly called at
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* interrupt level
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*/
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ACPI_EXTERN spinlock_t _acpi_gbl_gpe_lock; /* For GPE data structs and registers */
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ACPI_EXTERN spinlock_t _acpi_gbl_hardware_lock; /* For ACPI H/W except GPE registers */
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ACPI_EXTERN spinlock_t _acpi_ev_global_lock_pending_lock; /* For global lock */
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#define acpi_gbl_gpe_lock &_acpi_gbl_gpe_lock
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#define acpi_gbl_hardware_lock &_acpi_gbl_hardware_lock
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#define acpi_ev_global_lock_pending_lock &_acpi_ev_global_lock_pending_lock
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/*****************************************************************************
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*
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* Miscellaneous globals
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*
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****************************************************************************/
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#ifdef ACPI_DBG_TRACK_ALLOCATIONS
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/* Lists for tracking memory allocations */
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ACPI_EXTERN struct acpi_memory_list *acpi_gbl_global_list;
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ACPI_EXTERN struct acpi_memory_list *acpi_gbl_ns_node_list;
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ACPI_EXTERN u8 acpi_gbl_display_final_mem_stats;
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#endif
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/* Object caches */
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ACPI_EXTERN acpi_cache_t *acpi_gbl_namespace_cache;
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ACPI_EXTERN acpi_cache_t *acpi_gbl_state_cache;
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ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_cache;
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ACPI_EXTERN acpi_cache_t *acpi_gbl_ps_node_ext_cache;
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ACPI_EXTERN acpi_cache_t *acpi_gbl_operand_cache;
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/* Global handlers */
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ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_device_notify;
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ACPI_EXTERN struct acpi_object_notify_handler acpi_gbl_system_notify;
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ACPI_EXTERN acpi_exception_handler acpi_gbl_exception_handler;
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ACPI_EXTERN acpi_init_handler acpi_gbl_init_handler;
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ACPI_EXTERN acpi_tbl_handler acpi_gbl_table_handler;
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ACPI_EXTERN void *acpi_gbl_table_handler_context;
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ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk;
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ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler;
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/* Owner ID support */
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ACPI_EXTERN u32 acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS];
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ACPI_EXTERN u8 acpi_gbl_last_owner_id_index;
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ACPI_EXTERN u8 acpi_gbl_next_owner_id_offset;
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/* Misc */
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ACPI_EXTERN u32 acpi_gbl_original_mode;
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ACPI_EXTERN u32 acpi_gbl_rsdp_original_location;
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ACPI_EXTERN u32 acpi_gbl_ns_lookup_count;
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ACPI_EXTERN u32 acpi_gbl_ps_find_count;
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ACPI_EXTERN u16 acpi_gbl_pm1_enable_register_save;
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ACPI_EXTERN u8 acpi_gbl_debugger_configuration;
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ACPI_EXTERN u8 acpi_gbl_step_to_next_call;
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ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present;
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ACPI_EXTERN u8 acpi_gbl_events_initialized;
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ACPI_EXTERN u8 acpi_gbl_osi_data;
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ACPI_EXTERN struct acpi_interface_info *acpi_gbl_supported_interfaces;
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#ifndef DEFINE_ACPI_GLOBALS
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/* Other miscellaneous */
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extern u8 acpi_gbl_shutdown;
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extern u32 acpi_gbl_startup_flags;
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extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
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extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS];
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extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS];
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extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
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extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
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#endif
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/* Exception codes */
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extern char const *acpi_gbl_exception_names_env[];
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extern char const *acpi_gbl_exception_names_pgm[];
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extern char const *acpi_gbl_exception_names_tbl[];
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extern char const *acpi_gbl_exception_names_aml[];
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extern char const *acpi_gbl_exception_names_ctrl[];
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/*****************************************************************************
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*
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* Namespace globals
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*
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****************************************************************************/
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#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
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#define NUM_PREDEFINED_NAMES 10
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#else
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#define NUM_PREDEFINED_NAMES 9
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#endif
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ACPI_EXTERN struct acpi_namespace_node acpi_gbl_root_node_struct;
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ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_root_node;
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ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_fadt_gpe_device;
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ACPI_EXTERN union acpi_operand_object *acpi_gbl_module_code_list;
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extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES];
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extern const struct acpi_predefined_names
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acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES];
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#ifdef ACPI_DEBUG_OUTPUT
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ACPI_EXTERN u32 acpi_gbl_current_node_count;
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ACPI_EXTERN u32 acpi_gbl_current_node_size;
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ACPI_EXTERN u32 acpi_gbl_max_concurrent_node_count;
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ACPI_EXTERN acpi_size *acpi_gbl_entry_stack_pointer;
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ACPI_EXTERN acpi_size *acpi_gbl_lowest_stack_pointer;
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ACPI_EXTERN u32 acpi_gbl_deepest_nesting;
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#endif
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/*****************************************************************************
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*
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* Interpreter globals
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*
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****************************************************************************/
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ACPI_EXTERN struct acpi_thread_state *acpi_gbl_current_walk_list;
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/* Control method single step flag */
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ACPI_EXTERN u8 acpi_gbl_cm_single_step;
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/*****************************************************************************
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*
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* Hardware globals
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*
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****************************************************************************/
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extern struct acpi_bit_register_info
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acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
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ACPI_EXTERN u8 acpi_gbl_sleep_type_a;
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ACPI_EXTERN u8 acpi_gbl_sleep_type_b;
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/*****************************************************************************
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*
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* Event and GPE globals
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*
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****************************************************************************/
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extern struct acpi_fixed_event_info
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acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
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ACPI_EXTERN struct acpi_fixed_event_handler
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acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS];
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ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head;
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ACPI_EXTERN struct acpi_gpe_block_info
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*acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS];
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ACPI_EXTERN u8 acpi_gbl_all_gpes_initialized;
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ACPI_EXTERN ACPI_GBL_EVENT_HANDLER acpi_gbl_global_event_handler;
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ACPI_EXTERN void *acpi_gbl_global_event_handler_context;
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/*****************************************************************************
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*
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* Debugger globals
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*
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****************************************************************************/
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ACPI_EXTERN u8 acpi_gbl_db_output_flags;
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#ifdef ACPI_DISASSEMBLER
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ACPI_EXTERN u8 acpi_gbl_db_opt_disasm;
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ACPI_EXTERN u8 acpi_gbl_db_opt_verbose;
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#endif
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#ifdef ACPI_DEBUGGER
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extern u8 acpi_gbl_method_executing;
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extern u8 acpi_gbl_abort_method;
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extern u8 acpi_gbl_db_terminate_threads;
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ACPI_EXTERN u8 acpi_gbl_db_opt_tables;
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ACPI_EXTERN u8 acpi_gbl_db_opt_stats;
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ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods;
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ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS];
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ACPI_EXTERN char acpi_gbl_db_line_buf[80];
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ACPI_EXTERN char acpi_gbl_db_parsed_buf[80];
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ACPI_EXTERN char acpi_gbl_db_scope_buf[40];
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ACPI_EXTERN char acpi_gbl_db_debug_filename[40];
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ACPI_EXTERN u8 acpi_gbl_db_output_to_file;
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ACPI_EXTERN char *acpi_gbl_db_buffer;
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ACPI_EXTERN char *acpi_gbl_db_filename;
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ACPI_EXTERN u32 acpi_gbl_db_debug_level;
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ACPI_EXTERN u32 acpi_gbl_db_console_debug_level;
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ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node;
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/*
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* Statistic globals
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*/
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ACPI_EXTERN u16 acpi_gbl_obj_type_count[ACPI_TYPE_NS_NODE_MAX + 1];
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ACPI_EXTERN u16 acpi_gbl_node_type_count[ACPI_TYPE_NS_NODE_MAX + 1];
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ACPI_EXTERN u16 acpi_gbl_obj_type_count_misc;
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ACPI_EXTERN u16 acpi_gbl_node_type_count_misc;
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ACPI_EXTERN u32 acpi_gbl_num_nodes;
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ACPI_EXTERN u32 acpi_gbl_num_objects;
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ACPI_EXTERN u32 acpi_gbl_size_of_parse_tree;
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ACPI_EXTERN u32 acpi_gbl_size_of_method_trees;
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ACPI_EXTERN u32 acpi_gbl_size_of_node_entries;
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ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects;
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#endif /* ACPI_DEBUGGER */
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#endif /* __ACGLOBAL_H__ */
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