forked from Minki/linux
62eb935b77
ACPICA commit afb52611dbe7403551f93504d3798534f5c343f4
This patch cleans up the code of assigning the AML address to the
union acpi_operand_object.
The idea behind this cleanup is:
The AML address of the union acpi_operand_object should always be determined at
the point where the object is encountered. It should be started from the
first byte of the object. For example, the opcode of the object, the name
string of the user_term object, or the first byte of the packaged object
(where a pkg_length is prefixed). So it's not cleaner to have it assigned
here and there in the entire ACPICA source tree.
There are some special cases for the internal opcodes, before cleaning up
the internal opcodes, we should also determine the rules for the AML
addresses of the internal opcodes:
1. INT_NAMEPATH_OP: the address of the first byte for the name_string.
2. INT_METHODCALL_OP: the address of the first byte for the name_string.
3. INT_BYTELIST_OP: the address of the first byte for the byte_data list.
4. INT_EVAL_SUBTREE_OP: the address of the first byte for the
Region/Package/Buffer/bank_field/Field arguments.
5. INT_NAMEDFIELD_OP: the address to the name_seg.
6. INT_RESERVEDFIELD_OP: the address to the 0x00 prefix.
7. INT_ACCESSFIELD_OP: the address to the 0x01 prefix.
8. INT_CONNECTION_OP: the address to the 0x02 prefix.
9: INT_EXTACCESSFIELD_OP: the address to the 0x03 prefix.
10.INT_RETURN_VALUE_OP: the address of the replaced operand.
11.computational_data: the address to the
Byte/Word/Dword/Qword/string_prefix.
Before cleaning up the internal root scope of the aml_walk, turning it into
the term_list, we need to remember the aml_start address as the "Aml"
attribute for the union acpi_operand_object created by acpi_ps_create_scope_op().
Finally, we can delete some redundant AML address assignment in psloop.c.
Link: https://github.com/acpica/acpica/commit/afb52611
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>
258 lines
8.0 KiB
C
258 lines
8.0 KiB
C
/******************************************************************************
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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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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2015, 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 __ACPARSER_H__
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#define __ACPARSER_H__
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#define OP_HAS_RETURN_VALUE 1
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/* Variable number of arguments. This field must be 32 bits */
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#define ACPI_VAR_ARGS ACPI_UINT32_MAX
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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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#define ACPI_PARSE_DISASSEMBLE 0x0200
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#define ACPI_PARSE_MODULE_LEVEL 0x0400
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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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extern const u8 acpi_gbl_short_op_index[];
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extern const u8 acpi_gbl_long_op_index[];
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/*
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* psxface - Parser external interfaces
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*/
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acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info);
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/*
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* psargs - Parse AML opcode arguments
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*/
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u8 *acpi_ps_get_next_package_end(struct acpi_parse_state *parser_state);
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char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state);
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void
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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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acpi_status
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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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union acpi_parse_object *arg, u8 method_call);
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acpi_status
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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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/*
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* psfind
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*/
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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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union acpi_parse_object *acpi_ps_get_parent(union acpi_parse_object *op);
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/*
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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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*/
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const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode);
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char *acpi_ps_get_opcode_name(u16 opcode);
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u8 acpi_ps_get_argument_count(u32 op_type);
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/*
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* psparse - top level parsing routines
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*/
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acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state);
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u32 acpi_ps_get_opcode_size(u32 opcode);
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u16 acpi_ps_peek_opcode(struct acpi_parse_state *state);
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acpi_status
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acpi_ps_complete_this_op(struct acpi_walk_state *walk_state,
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union acpi_parse_object *op);
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acpi_status
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acpi_ps_next_parse_state(struct acpi_walk_state *walk_state,
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union acpi_parse_object *op,
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acpi_status callback_status);
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/*
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* psloop - main parse loop
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*/
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acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state);
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/*
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* psscope - Scope stack management routines
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*/
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acpi_status
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acpi_ps_init_scope(struct acpi_parse_state *parser_state,
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union acpi_parse_object *root);
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union acpi_parse_object *acpi_ps_get_parent_scope(struct acpi_parse_state
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*state);
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u8 acpi_ps_has_completed_scope(struct acpi_parse_state *parser_state);
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void
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acpi_ps_pop_scope(struct acpi_parse_state *parser_state,
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union acpi_parse_object **op, u32 *arg_list, u32 *arg_count);
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acpi_status
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acpi_ps_push_scope(struct acpi_parse_state *parser_state,
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union acpi_parse_object *op,
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u32 remaining_args, u32 arg_count);
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void acpi_ps_cleanup_scope(struct acpi_parse_state *state);
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/*
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* pstree - parse tree manipulation routines
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*/
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void
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acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg);
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union acpi_parse_object *acpi_ps_find(union acpi_parse_object *scope,
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char *path, u16 opcode, u32 create);
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union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn);
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#ifdef ACPI_FUTURE_USAGE
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union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin,
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union acpi_parse_object *op);
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#endif /* ACPI_FUTURE_USAGE */
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/*
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* pswalk - parse tree walk routines
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*/
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acpi_status
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acpi_ps_walk_parsed_aml(union acpi_parse_object *start_op,
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union acpi_parse_object *end_op,
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union acpi_operand_object *mth_desc,
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struct acpi_namespace_node *start_node,
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union acpi_operand_object **params,
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union acpi_operand_object **caller_return_desc,
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acpi_owner_id owner_id,
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acpi_parse_downwards descending_callback,
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acpi_parse_upwards ascending_callback);
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acpi_status
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acpi_ps_get_next_walk_op(struct acpi_walk_state *walk_state,
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union acpi_parse_object *op,
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acpi_parse_upwards ascending_callback);
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acpi_status acpi_ps_delete_completed_op(struct acpi_walk_state *walk_state);
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void acpi_ps_delete_parse_tree(union acpi_parse_object *root);
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/*
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* psutils - parser utilities
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*/
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union acpi_parse_object *acpi_ps_create_scope_op(u8 *aml);
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void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode);
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union acpi_parse_object *acpi_ps_alloc_op(u16 opcode, u8 *aml);
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void acpi_ps_free_op(union acpi_parse_object *op);
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u8 acpi_ps_is_leading_char(u32 c);
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#ifdef ACPI_FUTURE_USAGE
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u32 acpi_ps_get_name(union acpi_parse_object *op);
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#endif /* ACPI_FUTURE_USAGE */
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void acpi_ps_set_name(union acpi_parse_object *op, u32 name);
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/*
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* psdump - display parser tree
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*/
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u32
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acpi_ps_sprint_path(char *buffer_start,
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u32 buffer_size, union acpi_parse_object *op);
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u32
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acpi_ps_sprint_op(char *buffer_start,
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u32 buffer_size, union acpi_parse_object *op);
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void acpi_ps_show(union acpi_parse_object *op);
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#endif /* __ACPARSER_H__ */
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