2018-03-15 07:13:07 +08:00
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/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
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2005-04-17 06:20:36 +08:00
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/******************************************************************************
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*
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* Module Name: acparser.h - AML Parser subcomponent prototypes and defines
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*
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2018-01-05 02:06:38 +08:00
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* Copyright (C) 2000 - 2018, Intel Corp.
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2005-04-17 06:20:36 +08:00
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*
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2018-03-15 07:13:07 +08:00
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*****************************************************************************/
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2005-04-17 06:20:36 +08:00
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#ifndef __ACPARSER_H__
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#define __ACPARSER_H__
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#define OP_HAS_RETURN_VALUE 1
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ACPI: ACPICA 20060331
Implemented header file support for the following
additional ACPI tables: ASF!, BOOT, CPEP, DBGP, MCFG, SPCR,
SPMI, TCPA, and WDRT. With this support, all current and
known ACPI tables are now defined in the ACPICA headers and
are available for use by device drivers and other software.
Implemented support to allow tables that contain ACPI
names with invalid characters to be loaded. Previously,
this would cause the table load to fail, but since
there are several known cases of such tables on
existing machines, this change was made to enable
ACPI support for them. Also, this matches the
behavior of the Microsoft ACPI implementation.
https://bugzilla.novell.com/show_bug.cgi?id=147621
Fixed a couple regressions introduced during the memory
optimization in the 20060317 release. The namespace
node definition required additional reorganization and
an internal datatype that had been changed to 8-bit was
restored to 32-bit. (Valery Podrezov)
Fixed a problem where a null pointer passed to
acpi_ut_delete_generic_state() could be passed through
to acpi_os_release_object which is unexpected. Such
null pointers are now trapped and ignored, matching
the behavior of the previous implementation before the
deployment of acpi_os_release_object(). (Valery Podrezov,
Fiodor Suietov)
Fixed a memory mapping leak during the deletion of
a SystemMemory operation region where a cached memory
mapping was not deleted. This became a noticeable problem
for operation regions that are defined within frequently
used control methods. (Dana Meyers)
Reorganized the ACPI table header files into two main
files: one for the ACPI tables consumed by the ACPICA core,
and another for the miscellaneous ACPI tables that are
consumed by the drivers and other software. The various
FADT definitions were merged into one common section and
three different tables (ACPI 1.0, 1.0+, and 2.0)
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-03-31 13:00:00 +08:00
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/* Variable number of arguments. This field must be 32 bits */
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2005-04-17 06:20:36 +08:00
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ACPI: ACPICA 20060331
Implemented header file support for the following
additional ACPI tables: ASF!, BOOT, CPEP, DBGP, MCFG, SPCR,
SPMI, TCPA, and WDRT. With this support, all current and
known ACPI tables are now defined in the ACPICA headers and
are available for use by device drivers and other software.
Implemented support to allow tables that contain ACPI
names with invalid characters to be loaded. Previously,
this would cause the table load to fail, but since
there are several known cases of such tables on
existing machines, this change was made to enable
ACPI support for them. Also, this matches the
behavior of the Microsoft ACPI implementation.
https://bugzilla.novell.com/show_bug.cgi?id=147621
Fixed a couple regressions introduced during the memory
optimization in the 20060317 release. The namespace
node definition required additional reorganization and
an internal datatype that had been changed to 8-bit was
restored to 32-bit. (Valery Podrezov)
Fixed a problem where a null pointer passed to
acpi_ut_delete_generic_state() could be passed through
to acpi_os_release_object which is unexpected. Such
null pointers are now trapped and ignored, matching
the behavior of the previous implementation before the
deployment of acpi_os_release_object(). (Valery Podrezov,
Fiodor Suietov)
Fixed a memory mapping leak during the deletion of
a SystemMemory operation region where a cached memory
mapping was not deleted. This became a noticeable problem
for operation regions that are defined within frequently
used control methods. (Dana Meyers)
Reorganized the ACPI table header files into two main
files: one for the ACPI tables consumed by the ACPICA core,
and another for the miscellaneous ACPI tables that are
consumed by the drivers and other software. The various
FADT definitions were merged into one common section and
three different tables (ACPI 1.0, 1.0+, and 2.0)
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-03-31 13:00:00 +08:00
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#define ACPI_VAR_ARGS ACPI_UINT32_MAX
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2005-04-17 06:20:36 +08:00
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#define ACPI_PARSE_DELETE_TREE 0x0001
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#define ACPI_PARSE_NO_TREE_DELETE 0x0000
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#define ACPI_PARSE_TREE_MASK 0x0001
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#define ACPI_PARSE_LOAD_PASS1 0x0010
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#define ACPI_PARSE_LOAD_PASS2 0x0020
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#define ACPI_PARSE_EXECUTE 0x0030
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#define ACPI_PARSE_MODE_MASK 0x0030
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#define ACPI_PARSE_DEFERRED_OP 0x0100
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ACPICA 20050617-0624 from Bob Moore <robert.moore@intel.com>
ACPICA 20050617:
Moved the object cache operations into the OS interface
layer (OSL) to allow the host OS to handle these operations
if desired (for example, the Linux OSL will invoke the
slab allocator). This support is optional; the compile
time define ACPI_USE_LOCAL_CACHE may be used to utilize
the original cache code in the ACPI CA core. The new OSL
interfaces are shown below. See utalloc.c for an example
implementation, and acpiosxf.h for the exact interface
definitions. Thanks to Alexey Starikovskiy.
acpi_os_create_cache
acpi_os_delete_cache
acpi_os_purge_cache
acpi_os_acquire_object
acpi_os_release_object
Modified the interfaces to acpi_os_acquire_lock and
acpi_os_release_lock to return and restore a flags
parameter. This fits better with many OS lock models.
Note: the current execution state (interrupt handler
or not) is no longer passed to these interfaces. If
necessary, the OSL must determine this state by itself, a
simple and fast operation. Thanks to Alexey Starikovskiy.
Fixed a problem in the ACPI table handling where a valid
XSDT was assumed present if the revision of the RSDP
was 2 or greater. According to the ACPI specification,
the XSDT is optional in all cases, and the table manager
therefore now checks for both an RSDP >=2 and a valid
XSDT pointer. Otherwise, the RSDT pointer is used.
Some ACPI 2.0 compliant BIOSs contain only the RSDT.
Fixed an interpreter problem with the Mid() operator in the
case of an input string where the resulting output string
is of zero length. It now correctly returns a valid,
null terminated string object instead of a string object
with a null pointer.
Fixed a problem with the control method argument handling
to allow a store to an Arg object that already contains an
object of type Device. The Device object is now correctly
overwritten. Previously, an error was returned.
ACPICA 20050624:
Modified the new OSL cache interfaces to use ACPI_CACHE_T
as the type for the host-defined cache object. This allows
the OSL implementation to define and type this object in
any manner desired, simplifying the OSL implementation.
For example, ACPI_CACHE_T is defined as kmem_cache_t for
Linux, and should be defined in the OS-specific header
file for other operating systems as required.
Changed the interface to AcpiOsAcquireObject to directly
return the requested object as the function return (instead
of ACPI_STATUS.) This change was made for performance
reasons, since this is the purpose of the interface in the
first place. acpi_os_acquire_object is now similar to the
acpi_os_allocate interface. Thanks to Alexey Starikovskiy.
Modified the initialization sequence in
acpi_initialize_subsystem to call the OSL interface
acpi_osl_initialize first, before any local initialization.
This change was required because the global initialization
now calls OSL interfaces.
Restructured the code base to split some files because
of size and/or because the code logically belonged in a
separate file. New files are listed below.
utilities/utcache.c /* Local cache interfaces */
utilities/utmutex.c /* Local mutex support */
utilities/utstate.c /* State object support */
parser/psloop.c /* Main AML parse loop */
Signed-off-by: Len Brown <len.brown@intel.com>
2005-06-24 12:00:00 +08:00
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#define ACPI_PARSE_DISASSEMBLE 0x0200
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2005-04-17 06:20:36 +08:00
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2009-08-13 14:03:15 +08:00
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#define ACPI_PARSE_MODULE_LEVEL 0x0400
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2005-04-19 10:49:35 +08:00
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/******************************************************************************
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*
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* Parser interfaces
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*
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*****************************************************************************/
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2015-05-21 10:30:31 +08:00
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extern const u8 acpi_gbl_short_op_index[];
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extern const u8 acpi_gbl_long_op_index[];
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2005-04-19 10:49:35 +08:00
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/*
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* psxface - Parser external interfaces
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*/
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2006-05-27 04:36:00 +08:00
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acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info);
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2005-04-17 06:20:36 +08:00
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ACPICA: Interpreter: Fix MLC issues by switching to new term_list grammar for table loading
ACPICA commit 0e24fb67cde08d7df7671d7d7b183490dc79707e
The MLC (Module Level Code) is an ACPICA terminology describing the AML
code out of any control method, its support is an indication of the
interpreter behavior during the table loading.
The original implementation of MLC in ACPICA had several issues:
1. Out of any control method, besides of the object creating opcodes, only
the code blocks wrapped by "If/Else/While" opcodes were supported.
2. The supported MLC code blocks were executed after loading the table
rather than being executed right in place.
============================================================
The demo of this order issue is as follows:
Name (OBJ1, 1)
If (CND1 == 1)
{
Name (OBJ2, 2)
}
Name (OBJ3, 3)
The original MLC support created OBJ2 after OBJ3's creation.
============================================================
Other than these limitations, MLC support in ACPICA looks correct. And
supporting this should be easy/natural for ACPICA, but enabling of this was
blocked by some ACPICA internal and OSPM specific initialization order
issues we've fixed recently. The wrong support started from the following
false bug fixing commit:
Commit: 7f0c826a437157d2b19662977e9cf3b472cf24a6
Subject: ACPICA: Add support for module-level executable AML code
Commit: 9a884ab64a4d092b4c3bf24fd9a30f7fbd4591e7
Subject: ACPICA: Add additional module-level code support
...
We can confirm Windows interpreter behavior via reverse engineering means.
It can be proven that not only If/Else/While wrapped code blocks, all
opcodes can be executed at the module level, including operation region
accesses. And it can be proven that the MLC should be executed right in
place, not in such a deferred way executed after loading the table.
And the above facts indeed reflect the spec words around ACPI definition
block tables (DSDT/SSDT/...), the entire table and the Scope object is
defined by the AML specification in BNF style as:
AMLCode := def_block_header term_list
def_scope := scope_op pkg_length name_string term_list
The bodies of the scope opening terms (AMLCode/Scope) are all term_list,
thus the table loading should be no difference than the control method
evaluations as the body of the Method is also defined by the AML
specification as term_list:
def_method := method_op pkg_length name_string method_flags term_list
The only difference is: after evaluating control method, created named
objects may be freed due to no reference, while named objects created by
the table loading should only be freed after unloading the table.
So this patch follows the spec and the de-facto standard behavior, enables
the new grammar (term_list) for the table loading.
By doing so, beyond the fixes to the above issues, we can see additional
differences comparing to the old grammar based table loading:
1. Originally, beyond the scope opening terms (AMLCode/Scope),
If/Else/While wrapped code blocks under the scope creating terms
(Device/power_resource/Processor/thermal_zone) are also supported as
deferred MLC, which violates the spec defined grammar where object_list
is enforced. With MLC support improved as non-deferred, the interpreter
parses such scope creating terms as term_list rather object_list like the
scope opening terms.
After probing the Windows behavior and proving that it also parses these
terms as term_list, we submitted an ECR (Engineering Change Request) to
the ASWG (ACPI Specification Working Group) to clarify this. The ECR is
titled as "ASL Grammar Clarification for Executable AML Opcodes" and has
been accepted by the ASWG. The new grammar will appear in ACPI
specification 6.2.
2. Originally, Buffer/Package/operation_region/create_XXXField/bank_field
arguments are evaluated in a deferred way after loading the table. With
MLC support improved, they are also parsed right in place during the
table loading.
This is also Windows compliant and the only difference is the removal
of the debugging messages implemented before acpi_ds_execute_arguments(),
see Link # [1] for the details. A previous commit should have ensured
that acpi_check_address_range() won't regress.
Note that enabling this feature may cause regressions due to long term
Linux ACPI support on top of the wrong grammar. So this patch also prepares
a global option to be used to roll back to the old grammar during the
period between a regression is reported and the regression is
root-cause-fixed. Lv Zheng.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=112911 # [1]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=117671 # [1]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=153541 # [1]
Link: https://github.com/acpica/acpica/issues/122
Link: https://bugs.acpica.org/show_bug.cgi?id=963
Link: https://github.com/acpica/acpica/commit/0e24fb67
Reported-and-tested-by: Chris Bainbridge <chris.bainbridge@gmail.com>
Reported-by: Ehsan <dashesy@gmail.com>
Reported-and-tested-by: Dutch Guy <lucht_piloot@gmx.net>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-09-07 14:06:54 +08:00
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acpi_status acpi_ps_execute_table(struct acpi_evaluate_info *info);
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2005-04-19 10:49:35 +08:00
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/*
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* psargs - Parse AML opcode arguments
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*/
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2005-08-05 12:44:28 +08:00
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u8 *acpi_ps_get_next_package_end(struct acpi_parse_state *parser_state);
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state);
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2005-04-17 06:20:36 +08:00
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void
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2005-08-05 12:44:28 +08:00
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acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state,
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u32 arg_type, union acpi_parse_object *arg);
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2005-04-17 06:20:36 +08:00
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acpi_status
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2005-08-05 12:44:28 +08:00
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acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state,
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struct acpi_parse_state *parser_state,
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2015-12-29 14:00:07 +08:00
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union acpi_parse_object *arg,
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u8 possible_method_call);
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/* Values for u8 above */
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#define ACPI_NOT_METHOD_CALL FALSE
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#define ACPI_POSSIBLE_METHOD_CALL TRUE
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2005-04-17 06:20:36 +08:00
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acpi_status
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2005-08-05 12:44:28 +08:00
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acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
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struct acpi_parse_state *parser_state,
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u32 arg_type, union acpi_parse_object **return_arg);
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2005-04-17 06:20:36 +08:00
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2005-04-19 10:49:35 +08:00
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/*
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* psfind
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*/
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2005-08-05 12:44:28 +08:00
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union acpi_parse_object *acpi_ps_find_name(union acpi_parse_object *scope,
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u32 name, u32 opcode);
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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union acpi_parse_object *acpi_ps_get_parent(union acpi_parse_object *op);
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2005-04-17 06:20:36 +08:00
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2005-04-19 10:49:35 +08:00
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/*
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2013-01-11 20:08:51 +08:00
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* psobject - support for parse object processing
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*/
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acpi_status
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acpi_ps_build_named_op(struct acpi_walk_state *walk_state,
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u8 *aml_op_start,
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union acpi_parse_object *unnamed_op,
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union acpi_parse_object **op);
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acpi_status
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acpi_ps_create_op(struct acpi_walk_state *walk_state,
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u8 *aml_op_start, union acpi_parse_object **new_op);
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acpi_status
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acpi_ps_complete_op(struct acpi_walk_state *walk_state,
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union acpi_parse_object **op, acpi_status status);
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acpi_status
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acpi_ps_complete_final_op(struct acpi_walk_state *walk_state,
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union acpi_parse_object *op, acpi_status status);
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/*
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* psopinfo - AML Opcode information
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2005-04-19 10:49:35 +08:00
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*/
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2005-08-05 12:44:28 +08:00
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const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode);
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2005-04-17 06:20:36 +08:00
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2016-03-24 09:40:40 +08:00
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const char *acpi_ps_get_opcode_name(u16 opcode);
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2005-04-17 06:20:36 +08:00
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2008-04-10 23:06:37 +08:00
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u8 acpi_ps_get_argument_count(u32 op_type);
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2005-04-19 10:49:35 +08:00
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/*
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* psparse - top level parsing routines
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*/
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2005-08-05 12:44:28 +08:00
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acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state);
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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u32 acpi_ps_get_opcode_size(u32 opcode);
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2005-04-17 06:20:36 +08:00
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2005-08-05 12:44:28 +08:00
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u16 acpi_ps_peek_opcode(struct acpi_parse_state *state);
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2005-04-17 06:20:36 +08:00
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ACPICA 20050617-0624 from Bob Moore <robert.moore@intel.com>
ACPICA 20050617:
Moved the object cache operations into the OS interface
layer (OSL) to allow the host OS to handle these operations
if desired (for example, the Linux OSL will invoke the
slab allocator). This support is optional; the compile
time define ACPI_USE_LOCAL_CACHE may be used to utilize
the original cache code in the ACPI CA core. The new OSL
interfaces are shown below. See utalloc.c for an example
implementation, and acpiosxf.h for the exact interface
definitions. Thanks to Alexey Starikovskiy.
acpi_os_create_cache
acpi_os_delete_cache
acpi_os_purge_cache
acpi_os_acquire_object
acpi_os_release_object
Modified the interfaces to acpi_os_acquire_lock and
acpi_os_release_lock to return and restore a flags
parameter. This fits better with many OS lock models.
Note: the current execution state (interrupt handler
or not) is no longer passed to these interfaces. If
necessary, the OSL must determine this state by itself, a
simple and fast operation. Thanks to Alexey Starikovskiy.
Fixed a problem in the ACPI table handling where a valid
XSDT was assumed present if the revision of the RSDP
was 2 or greater. According to the ACPI specification,
the XSDT is optional in all cases, and the table manager
therefore now checks for both an RSDP >=2 and a valid
XSDT pointer. Otherwise, the RSDT pointer is used.
Some ACPI 2.0 compliant BIOSs contain only the RSDT.
Fixed an interpreter problem with the Mid() operator in the
case of an input string where the resulting output string
is of zero length. It now correctly returns a valid,
null terminated string object instead of a string object
with a null pointer.
Fixed a problem with the control method argument handling
to allow a store to an Arg object that already contains an
object of type Device. The Device object is now correctly
overwritten. Previously, an error was returned.
ACPICA 20050624:
Modified the new OSL cache interfaces to use ACPI_CACHE_T
as the type for the host-defined cache object. This allows
the OSL implementation to define and type this object in
any manner desired, simplifying the OSL implementation.
For example, ACPI_CACHE_T is defined as kmem_cache_t for
Linux, and should be defined in the OS-specific header
file for other operating systems as required.
Changed the interface to AcpiOsAcquireObject to directly
return the requested object as the function return (instead
of ACPI_STATUS.) This change was made for performance
reasons, since this is the purpose of the interface in the
first place. acpi_os_acquire_object is now similar to the
acpi_os_allocate interface. Thanks to Alexey Starikovskiy.
Modified the initialization sequence in
acpi_initialize_subsystem to call the OSL interface
acpi_osl_initialize first, before any local initialization.
This change was required because the global initialization
now calls OSL interfaces.
Restructured the code base to split some files because
of size and/or because the code logically belonged in a
separate file. New files are listed below.
utilities/utcache.c /* Local cache interfaces */
utilities/utmutex.c /* Local mutex support */
utilities/utstate.c /* State object support */
parser/psloop.c /* Main AML parse loop */
Signed-off-by: Len Brown <len.brown@intel.com>
2005-06-24 12:00:00 +08:00
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acpi_status
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_ps_complete_this_op(struct acpi_walk_state *walk_state,
|
|
|
|
|
union acpi_parse_object *op);
|
ACPICA 20050617-0624 from Bob Moore <robert.moore@intel.com>
ACPICA 20050617:
Moved the object cache operations into the OS interface
layer (OSL) to allow the host OS to handle these operations
if desired (for example, the Linux OSL will invoke the
slab allocator). This support is optional; the compile
time define ACPI_USE_LOCAL_CACHE may be used to utilize
the original cache code in the ACPI CA core. The new OSL
interfaces are shown below. See utalloc.c for an example
implementation, and acpiosxf.h for the exact interface
definitions. Thanks to Alexey Starikovskiy.
acpi_os_create_cache
acpi_os_delete_cache
acpi_os_purge_cache
acpi_os_acquire_object
acpi_os_release_object
Modified the interfaces to acpi_os_acquire_lock and
acpi_os_release_lock to return and restore a flags
parameter. This fits better with many OS lock models.
Note: the current execution state (interrupt handler
or not) is no longer passed to these interfaces. If
necessary, the OSL must determine this state by itself, a
simple and fast operation. Thanks to Alexey Starikovskiy.
Fixed a problem in the ACPI table handling where a valid
XSDT was assumed present if the revision of the RSDP
was 2 or greater. According to the ACPI specification,
the XSDT is optional in all cases, and the table manager
therefore now checks for both an RSDP >=2 and a valid
XSDT pointer. Otherwise, the RSDT pointer is used.
Some ACPI 2.0 compliant BIOSs contain only the RSDT.
Fixed an interpreter problem with the Mid() operator in the
case of an input string where the resulting output string
is of zero length. It now correctly returns a valid,
null terminated string object instead of a string object
with a null pointer.
Fixed a problem with the control method argument handling
to allow a store to an Arg object that already contains an
object of type Device. The Device object is now correctly
overwritten. Previously, an error was returned.
ACPICA 20050624:
Modified the new OSL cache interfaces to use ACPI_CACHE_T
as the type for the host-defined cache object. This allows
the OSL implementation to define and type this object in
any manner desired, simplifying the OSL implementation.
For example, ACPI_CACHE_T is defined as kmem_cache_t for
Linux, and should be defined in the OS-specific header
file for other operating systems as required.
Changed the interface to AcpiOsAcquireObject to directly
return the requested object as the function return (instead
of ACPI_STATUS.) This change was made for performance
reasons, since this is the purpose of the interface in the
first place. acpi_os_acquire_object is now similar to the
acpi_os_allocate interface. Thanks to Alexey Starikovskiy.
Modified the initialization sequence in
acpi_initialize_subsystem to call the OSL interface
acpi_osl_initialize first, before any local initialization.
This change was required because the global initialization
now calls OSL interfaces.
Restructured the code base to split some files because
of size and/or because the code logically belonged in a
separate file. New files are listed below.
utilities/utcache.c /* Local cache interfaces */
utilities/utmutex.c /* Local mutex support */
utilities/utstate.c /* State object support */
parser/psloop.c /* Main AML parse loop */
Signed-off-by: Len Brown <len.brown@intel.com>
2005-06-24 12:00:00 +08:00
|
|
|
|
|
|
|
|
acpi_status
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_ps_next_parse_state(struct acpi_walk_state *walk_state,
|
|
|
|
|
union acpi_parse_object *op,
|
|
|
|
|
acpi_status callback_status);
|
ACPICA 20050617-0624 from Bob Moore <robert.moore@intel.com>
ACPICA 20050617:
Moved the object cache operations into the OS interface
layer (OSL) to allow the host OS to handle these operations
if desired (for example, the Linux OSL will invoke the
slab allocator). This support is optional; the compile
time define ACPI_USE_LOCAL_CACHE may be used to utilize
the original cache code in the ACPI CA core. The new OSL
interfaces are shown below. See utalloc.c for an example
implementation, and acpiosxf.h for the exact interface
definitions. Thanks to Alexey Starikovskiy.
acpi_os_create_cache
acpi_os_delete_cache
acpi_os_purge_cache
acpi_os_acquire_object
acpi_os_release_object
Modified the interfaces to acpi_os_acquire_lock and
acpi_os_release_lock to return and restore a flags
parameter. This fits better with many OS lock models.
Note: the current execution state (interrupt handler
or not) is no longer passed to these interfaces. If
necessary, the OSL must determine this state by itself, a
simple and fast operation. Thanks to Alexey Starikovskiy.
Fixed a problem in the ACPI table handling where a valid
XSDT was assumed present if the revision of the RSDP
was 2 or greater. According to the ACPI specification,
the XSDT is optional in all cases, and the table manager
therefore now checks for both an RSDP >=2 and a valid
XSDT pointer. Otherwise, the RSDT pointer is used.
Some ACPI 2.0 compliant BIOSs contain only the RSDT.
Fixed an interpreter problem with the Mid() operator in the
case of an input string where the resulting output string
is of zero length. It now correctly returns a valid,
null terminated string object instead of a string object
with a null pointer.
Fixed a problem with the control method argument handling
to allow a store to an Arg object that already contains an
object of type Device. The Device object is now correctly
overwritten. Previously, an error was returned.
ACPICA 20050624:
Modified the new OSL cache interfaces to use ACPI_CACHE_T
as the type for the host-defined cache object. This allows
the OSL implementation to define and type this object in
any manner desired, simplifying the OSL implementation.
For example, ACPI_CACHE_T is defined as kmem_cache_t for
Linux, and should be defined in the OS-specific header
file for other operating systems as required.
Changed the interface to AcpiOsAcquireObject to directly
return the requested object as the function return (instead
of ACPI_STATUS.) This change was made for performance
reasons, since this is the purpose of the interface in the
first place. acpi_os_acquire_object is now similar to the
acpi_os_allocate interface. Thanks to Alexey Starikovskiy.
Modified the initialization sequence in
acpi_initialize_subsystem to call the OSL interface
acpi_osl_initialize first, before any local initialization.
This change was required because the global initialization
now calls OSL interfaces.
Restructured the code base to split some files because
of size and/or because the code logically belonged in a
separate file. New files are listed below.
utilities/utcache.c /* Local cache interfaces */
utilities/utmutex.c /* Local mutex support */
utilities/utstate.c /* State object support */
parser/psloop.c /* Main AML parse loop */
Signed-off-by: Len Brown <len.brown@intel.com>
2005-06-24 12:00:00 +08:00
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* psloop - main parse loop
|
|
|
|
|
*/
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-04-19 10:49:35 +08:00
|
|
|
/*
|
|
|
|
|
* psscope - Scope stack management routines
|
|
|
|
|
*/
|
2005-04-17 06:20:36 +08:00
|
|
|
acpi_status
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_ps_init_scope(struct acpi_parse_state *parser_state,
|
|
|
|
|
union acpi_parse_object *root);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
union acpi_parse_object *acpi_ps_get_parent_scope(struct acpi_parse_state
|
|
|
|
|
*state);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
u8 acpi_ps_has_completed_scope(struct acpi_parse_state *parser_state);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
void
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_ps_pop_scope(struct acpi_parse_state *parser_state,
|
2012-10-31 10:25:45 +08:00
|
|
|
union acpi_parse_object **op, u32 *arg_list, u32 *arg_count);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
acpi_status
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_ps_push_scope(struct acpi_parse_state *parser_state,
|
|
|
|
|
union acpi_parse_object *op,
|
ACPI: ACPICA 20060331
Implemented header file support for the following
additional ACPI tables: ASF!, BOOT, CPEP, DBGP, MCFG, SPCR,
SPMI, TCPA, and WDRT. With this support, all current and
known ACPI tables are now defined in the ACPICA headers and
are available for use by device drivers and other software.
Implemented support to allow tables that contain ACPI
names with invalid characters to be loaded. Previously,
this would cause the table load to fail, but since
there are several known cases of such tables on
existing machines, this change was made to enable
ACPI support for them. Also, this matches the
behavior of the Microsoft ACPI implementation.
https://bugzilla.novell.com/show_bug.cgi?id=147621
Fixed a couple regressions introduced during the memory
optimization in the 20060317 release. The namespace
node definition required additional reorganization and
an internal datatype that had been changed to 8-bit was
restored to 32-bit. (Valery Podrezov)
Fixed a problem where a null pointer passed to
acpi_ut_delete_generic_state() could be passed through
to acpi_os_release_object which is unexpected. Such
null pointers are now trapped and ignored, matching
the behavior of the previous implementation before the
deployment of acpi_os_release_object(). (Valery Podrezov,
Fiodor Suietov)
Fixed a memory mapping leak during the deletion of
a SystemMemory operation region where a cached memory
mapping was not deleted. This became a noticeable problem
for operation regions that are defined within frequently
used control methods. (Dana Meyers)
Reorganized the ACPI table header files into two main
files: one for the ACPI tables consumed by the ACPICA core,
and another for the miscellaneous ACPI tables that are
consumed by the drivers and other software. The various
FADT definitions were merged into one common section and
three different tables (ACPI 1.0, 1.0+, and 2.0)
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-03-31 13:00:00 +08:00
|
|
|
u32 remaining_args, u32 arg_count);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
void acpi_ps_cleanup_scope(struct acpi_parse_state *state);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-04-19 10:49:35 +08:00
|
|
|
/*
|
|
|
|
|
* pstree - parse tree manipulation routines
|
|
|
|
|
*/
|
2005-04-17 06:20:36 +08:00
|
|
|
void
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
union acpi_parse_object *acpi_ps_find(union acpi_parse_object *scope,
|
|
|
|
|
char *path, u16 opcode, u32 create);
|
|
|
|
|
|
|
|
|
|
union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin,
|
|
|
|
|
union acpi_parse_object *op);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-04-19 10:49:35 +08:00
|
|
|
/*
|
|
|
|
|
* pswalk - parse tree walk routines
|
|
|
|
|
*/
|
2005-04-17 06:20:36 +08:00
|
|
|
acpi_status
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_ps_walk_parsed_aml(union acpi_parse_object *start_op,
|
|
|
|
|
union acpi_parse_object *end_op,
|
|
|
|
|
union acpi_operand_object *mth_desc,
|
|
|
|
|
struct acpi_namespace_node *start_node,
|
|
|
|
|
union acpi_operand_object **params,
|
|
|
|
|
union acpi_operand_object **caller_return_desc,
|
|
|
|
|
acpi_owner_id owner_id,
|
|
|
|
|
acpi_parse_downwards descending_callback,
|
|
|
|
|
acpi_parse_upwards ascending_callback);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
acpi_status
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_ps_get_next_walk_op(struct acpi_walk_state *walk_state,
|
|
|
|
|
union acpi_parse_object *op,
|
|
|
|
|
acpi_parse_upwards ascending_callback);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_status acpi_ps_delete_completed_op(struct acpi_walk_state *walk_state);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
void acpi_ps_delete_parse_tree(union acpi_parse_object *root);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-04-19 10:49:35 +08:00
|
|
|
/*
|
|
|
|
|
* psutils - parser utilities
|
|
|
|
|
*/
|
2015-07-23 12:52:24 +08:00
|
|
|
union acpi_parse_object *acpi_ps_create_scope_op(u8 *aml);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2015-07-23 12:52:24 +08:00
|
|
|
union acpi_parse_object *acpi_ps_alloc_op(u16 opcode, u8 *aml);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
void acpi_ps_free_op(union acpi_parse_object *op);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
u8 acpi_ps_is_leading_char(u32 c);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
u32 acpi_ps_get_name(union acpi_parse_object *op);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
void acpi_ps_set_name(union acpi_parse_object *op, u32 name);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-04-19 10:49:35 +08:00
|
|
|
/*
|
|
|
|
|
* psdump - display parser tree
|
|
|
|
|
*/
|
2005-04-17 06:20:36 +08:00
|
|
|
u32
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_ps_sprint_path(char *buffer_start,
|
|
|
|
|
u32 buffer_size, union acpi_parse_object *op);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
u32
|
2005-08-05 12:44:28 +08:00
|
|
|
acpi_ps_sprint_op(char *buffer_start,
|
|
|
|
|
u32 buffer_size, union acpi_parse_object *op);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
void acpi_ps_show(union acpi_parse_object *op);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
2005-08-05 12:44:28 +08:00
|
|
|
#endif /* __ACPARSER_H__ */
|