q3k/linux
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
linux/include/acpi/acnamesp.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  These have been replaced by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

424 lines
11 KiB
C
Raw Blame History

/******************************************************************************
*
* Name: acnamesp.h - Namespace subcomponent prototypes and defines
*
*****************************************************************************/
/*
* 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 __ACNAMESP_H__
#define __ACNAMESP_H__
/* To search the entire name space, pass this as search_base */
#define ACPI_NS_ALL ((acpi_handle)0)
/*
* Elements of acpi_ns_properties are bit significant
* and should be one-to-one with values of acpi_object_type
*/
#define ACPI_NS_NORMAL 0
#define ACPI_NS_NEWSCOPE 1 /* a definition of this type opens a name scope */
#define ACPI_NS_LOCAL 2 /* suppress search of enclosing scopes */
/* Flags for acpi_ns_lookup, acpi_ns_search_and_enter */
#define ACPI_NS_NO_UPSEARCH 0
#define ACPI_NS_SEARCH_PARENT 0x01
#define ACPI_NS_DONT_OPEN_SCOPE 0x02
#define ACPI_NS_NO_PEER_SEARCH 0x04
#define ACPI_NS_ERROR_IF_FOUND 0x08
#define ACPI_NS_WALK_UNLOCK TRUE
#define ACPI_NS_WALK_NO_UNLOCK FALSE
/*
* nsinit - Namespace initialization
*/
acpi_status
acpi_ns_initialize_objects (
void);
acpi_status
acpi_ns_initialize_devices (
void);
/*
* nsload - Namespace loading
*/
acpi_status
acpi_ns_load_namespace (
void);
acpi_status
acpi_ns_load_table (
struct acpi_table_desc *table_desc,
struct acpi_namespace_node *node);
/*
* nswalk - walk the namespace
*/
acpi_status
acpi_ns_walk_namespace (
acpi_object_type type,
acpi_handle start_object,
u32 max_depth,
u8 unlock_before_callback,
acpi_walk_callback user_function,
void *context,
void **return_value);
struct acpi_namespace_node *
acpi_ns_get_next_node (
acpi_object_type type,
struct acpi_namespace_node *parent,
struct acpi_namespace_node *child);
/*
* nsparse - table parsing
*/
acpi_status
acpi_ns_parse_table (
struct acpi_table_desc *table_desc,
struct acpi_namespace_node *scope);
acpi_status
acpi_ns_one_complete_parse (
u32 pass_number,
struct acpi_table_desc *table_desc);
/*
* nsaccess - Top-level namespace access
*/
acpi_status
acpi_ns_root_initialize (
void);
acpi_status
acpi_ns_lookup (
union acpi_generic_state *scope_info,
char *name,
acpi_object_type type,
acpi_interpreter_mode interpreter_mode,
u32 flags,
struct acpi_walk_state *walk_state,
struct acpi_namespace_node **ret_node);
/*
* nsalloc - Named object allocation/deallocation
*/
struct acpi_namespace_node *
acpi_ns_create_node (
u32 name);
void
acpi_ns_delete_node (
struct acpi_namespace_node *node);
void
acpi_ns_delete_namespace_subtree (
struct acpi_namespace_node *parent_handle);
void
acpi_ns_delete_namespace_by_owner (
acpi_owner_id owner_id);
void
acpi_ns_detach_object (
struct acpi_namespace_node *node);
void
acpi_ns_delete_children (
struct acpi_namespace_node *parent);
int
acpi_ns_compare_names (
char *name1,
char *name2);
/*
* nsdump - Namespace dump/print utilities
*/
#ifdef ACPI_FUTURE_USAGE
void
acpi_ns_dump_tables (
acpi_handle search_base,
u32 max_depth);
#endif /* ACPI_FUTURE_USAGE */
void
acpi_ns_dump_entry (
acpi_handle handle,
u32 debug_level);
void
acpi_ns_dump_pathname (
acpi_handle handle,
char *msg,
u32 level,
u32 component);
void
acpi_ns_print_pathname (
u32 num_segments,
char *pathname);
acpi_status
acpi_ns_dump_one_object (
acpi_handle obj_handle,
u32 level,
void *context,
void **return_value);
#ifdef ACPI_FUTURE_USAGE
void
acpi_ns_dump_objects (
acpi_object_type type,
u8 display_type,
u32 max_depth,
acpi_owner_id owner_id,
acpi_handle start_handle);
#endif /* ACPI_FUTURE_USAGE */
/*
* nseval - Namespace evaluation functions
*/
acpi_status
acpi_ns_evaluate_by_handle (
struct acpi_parameter_info *info);
acpi_status
acpi_ns_evaluate_by_name (
char *pathname,
struct acpi_parameter_info *info);
acpi_status
acpi_ns_evaluate_relative (
char *pathname,
struct acpi_parameter_info *info);
/*
* nsnames - Name and Scope manipulation
*/
u32
acpi_ns_opens_scope (
acpi_object_type type);
char *
acpi_ns_get_external_pathname (
struct acpi_namespace_node *node);
char *
acpi_ns_name_of_current_scope (
struct acpi_walk_state *walk_state);
acpi_status
acpi_ns_handle_to_pathname (
acpi_handle target_handle,
struct acpi_buffer *buffer);
u8
acpi_ns_pattern_match (
struct acpi_namespace_node *obj_node,
char *search_for);
acpi_status
acpi_ns_get_node_by_path (
char *external_pathname,
struct acpi_namespace_node *in_prefix_node,
u32 flags,
struct acpi_namespace_node **out_node);
acpi_size
acpi_ns_get_pathname_length (
struct acpi_namespace_node *node);
/*
* nsobject - Object management for namespace nodes
*/
acpi_status
acpi_ns_attach_object (
struct acpi_namespace_node *node,
union acpi_operand_object *object,
acpi_object_type type);
union acpi_operand_object *
acpi_ns_get_attached_object (
struct acpi_namespace_node *node);
union acpi_operand_object *
acpi_ns_get_secondary_object (
union acpi_operand_object *obj_desc);
acpi_status
acpi_ns_attach_data (
struct acpi_namespace_node *node,
acpi_object_handler handler,
void *data);
acpi_status
acpi_ns_detach_data (
struct acpi_namespace_node *node,
acpi_object_handler handler);
acpi_status
acpi_ns_get_attached_data (
struct acpi_namespace_node *node,
acpi_object_handler handler,
void **data);
/*
* nssearch - Namespace searching and entry
*/
acpi_status
acpi_ns_search_and_enter (
u32 entry_name,
struct acpi_walk_state *walk_state,
struct acpi_namespace_node *node,
acpi_interpreter_mode interpreter_mode,
acpi_object_type type,
u32 flags,
struct acpi_namespace_node **ret_node);
acpi_status
acpi_ns_search_node (
u32 entry_name,
struct acpi_namespace_node *node,
acpi_object_type type,
struct acpi_namespace_node **ret_node);
void
acpi_ns_install_node (
struct acpi_walk_state *walk_state,
struct acpi_namespace_node *parent_node,
struct acpi_namespace_node *node,
acpi_object_type type);
/*
* nsutils - Utility functions
*/
u8
acpi_ns_valid_root_prefix (
char prefix);
acpi_object_type
acpi_ns_get_type (
struct acpi_namespace_node *node);
u32
acpi_ns_local (
acpi_object_type type);
void
acpi_ns_report_error (
char *module_name,
u32 line_number,
u32 component_id,
char *internal_name,
acpi_status lookup_status);
void
acpi_ns_report_method_error (
char *module_name,
u32 line_number,
u32 component_id,
char *message,
struct acpi_namespace_node *node,
char *path,
acpi_status lookup_status);
void
acpi_ns_print_node_pathname (
struct acpi_namespace_node *node,
char *msg);
acpi_status
acpi_ns_build_internal_name (
struct acpi_namestring_info *info);
void
acpi_ns_get_internal_name_length (
struct acpi_namestring_info *info);
acpi_status
acpi_ns_internalize_name (
char *dotted_name,
char **converted_name);
acpi_status
acpi_ns_externalize_name (
u32 internal_name_length,
char *internal_name,
u32 *converted_name_length,
char **converted_name);
struct acpi_namespace_node *
acpi_ns_map_handle_to_node (
acpi_handle handle);
acpi_handle
acpi_ns_convert_entry_to_handle(
struct acpi_namespace_node *node);
void
acpi_ns_terminate (
void);
struct acpi_namespace_node *
acpi_ns_get_parent_node (
struct acpi_namespace_node *node);
struct acpi_namespace_node *
acpi_ns_get_next_valid_node (
struct acpi_namespace_node *node);
#endif /* __ACNAMESP_H__ */
Reference in a new issue View git blame Copy permalink