forked from luck/tmp_suning_uos_patched
83482f758b
ACPICA commit d254405814495058276c0c2f9d96794d15a6c91c This patch converts aml_offset in struct acpi_walk_state to AML address. AML offset is actually only used by the debugger, using AML address is more direct and efficient during the parsing stage so that we don't need to calculate it during the parsing stage. On the other hand, we can see several issues in the current parser logic around the aml_offset: 1. union acpi_operand_object.Common.aml_offset is redundantly assigned in acpi_ps_parse_loop(). 2. aml_offset is not an indication of the offset from the table header but the offset from the entry of a list of objects. Sometimes, it indicates an entry for a Method/Package/Buffer, which makes it difficult to be reversely calculated to a table header offset. 3. When being used with method tracers (for example, Linux function trace), it's better to have AML address logged instead of the AML offset because the address is the only attribute that can uniquely identify the opcode. This patch is required to solve the above issues. Lv Zheng. Link: https://github.com/acpica/acpica/commit/d2544058 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>
244 lines
8.6 KiB
C
244 lines
8.6 KiB
C
/******************************************************************************
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*
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* Name: acstruct.h - Internal structs
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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 __ACSTRUCT_H__
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#define __ACSTRUCT_H__
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/* acpisrc:struct_defs -- for acpisrc conversion */
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/*****************************************************************************
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*
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* Tree walking typedefs and structs
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*
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****************************************************************************/
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/*
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* Walk state - current state of a parse tree walk. Used for both a leisurely
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* stroll through the tree (for whatever reason), and for control method
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* execution.
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*/
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#define ACPI_NEXT_OP_DOWNWARD 1
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#define ACPI_NEXT_OP_UPWARD 2
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/*
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* Groups of definitions for walk_type used for different implementations of
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* walkers (never simultaneously) - flags for interpreter:
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*/
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#define ACPI_WALK_NON_METHOD 0
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#define ACPI_WALK_METHOD 0x01
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#define ACPI_WALK_METHOD_RESTART 0x02
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struct acpi_walk_state {
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struct acpi_walk_state *next; /* Next walk_state in list */
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u8 descriptor_type; /* To differentiate various internal objs */
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u8 walk_type;
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u16 opcode; /* Current AML opcode */
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u8 next_op_info; /* Info about next_op */
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u8 num_operands; /* Stack pointer for Operands[] array */
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u8 operand_index; /* Index into operand stack, to be used by acpi_ds_obj_stack_push */
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acpi_owner_id owner_id; /* Owner of objects created during the walk */
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u8 last_predicate; /* Result of last predicate */
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u8 current_result;
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u8 return_used;
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u8 scope_depth;
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u8 pass_number; /* Parse pass during table load */
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u8 namespace_override; /* Override existing objects */
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u8 result_size; /* Total elements for the result stack */
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u8 result_count; /* Current number of occupied elements of result stack */
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u8 *aml;
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u32 arg_types;
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u32 method_breakpoint; /* For single stepping */
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u32 user_breakpoint; /* User AML breakpoint */
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u32 parse_flags;
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struct acpi_parse_state parser_state; /* Current state of parser */
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u32 prev_arg_types;
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u32 arg_count; /* push for fixed or var args */
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struct acpi_namespace_node arguments[ACPI_METHOD_NUM_ARGS]; /* Control method arguments */
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struct acpi_namespace_node local_variables[ACPI_METHOD_NUM_LOCALS]; /* Control method locals */
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union acpi_operand_object *operands[ACPI_OBJ_NUM_OPERANDS + 1]; /* Operands passed to the interpreter (+1 for NULL terminator) */
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union acpi_operand_object **params;
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u8 *aml_last_while;
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union acpi_operand_object **caller_return_desc;
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union acpi_generic_state *control_state; /* List of control states (nested IFs) */
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struct acpi_namespace_node *deferred_node; /* Used when executing deferred opcodes */
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union acpi_operand_object *implicit_return_obj;
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struct acpi_namespace_node *method_call_node; /* Called method Node */
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union acpi_parse_object *method_call_op; /* method_call Op if running a method */
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union acpi_operand_object *method_desc; /* Method descriptor if running a method */
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struct acpi_namespace_node *method_node; /* Method node if running a method. */
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union acpi_parse_object *op; /* Current parser op */
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const struct acpi_opcode_info *op_info; /* Info on current opcode */
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union acpi_parse_object *origin; /* Start of walk [Obsolete] */
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union acpi_operand_object *result_obj;
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union acpi_generic_state *results; /* Stack of accumulated results */
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union acpi_operand_object *return_desc; /* Return object, if any */
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union acpi_generic_state *scope_info; /* Stack of nested scopes */
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union acpi_parse_object *prev_op; /* Last op that was processed */
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union acpi_parse_object *next_op; /* next op to be processed */
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struct acpi_thread_state *thread;
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acpi_parse_downwards descending_callback;
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acpi_parse_upwards ascending_callback;
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};
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/* Info used by acpi_ns_initialize_objects and acpi_ds_initialize_objects */
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struct acpi_init_walk_info {
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u32 table_index;
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u32 object_count;
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u32 method_count;
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u32 serial_method_count;
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u32 non_serial_method_count;
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u32 serialized_method_count;
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u32 device_count;
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u32 op_region_count;
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u32 field_count;
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u32 buffer_count;
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u32 package_count;
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u32 op_region_init;
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u32 field_init;
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u32 buffer_init;
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u32 package_init;
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acpi_owner_id owner_id;
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};
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struct acpi_get_devices_info {
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acpi_walk_callback user_function;
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void *context;
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const char *hid;
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};
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union acpi_aml_operands {
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union acpi_operand_object *operands[7];
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struct {
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struct acpi_object_integer *type;
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struct acpi_object_integer *code;
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struct acpi_object_integer *argument;
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} fatal;
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struct {
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union acpi_operand_object *source;
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struct acpi_object_integer *index;
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union acpi_operand_object *target;
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} index;
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struct {
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union acpi_operand_object *source;
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struct acpi_object_integer *index;
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struct acpi_object_integer *length;
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union acpi_operand_object *target;
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} mid;
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};
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/*
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* Structure used to pass object evaluation information and parameters.
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* Purpose is to reduce CPU stack use.
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*/
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struct acpi_evaluate_info {
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/* The first 3 elements are passed by the caller to acpi_ns_evaluate */
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struct acpi_namespace_node *prefix_node; /* Input: starting node */
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char *relative_pathname; /* Input: path relative to prefix_node */
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union acpi_operand_object **parameters; /* Input: argument list */
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struct acpi_namespace_node *node; /* Resolved node (prefix_node:relative_pathname) */
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union acpi_operand_object *obj_desc; /* Object attached to the resolved node */
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char *full_pathname; /* Full pathname of the resolved node */
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const union acpi_predefined_info *predefined; /* Used if Node is a predefined name */
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union acpi_operand_object *return_object; /* Object returned from the evaluation */
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union acpi_operand_object *parent_package; /* Used if return object is a Package */
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u32 return_flags; /* Used for return value analysis */
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u32 return_btype; /* Bitmapped type of the returned object */
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u16 param_count; /* Count of the input argument list */
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u8 pass_number; /* Parser pass number */
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u8 return_object_type; /* Object type of the returned object */
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u8 node_flags; /* Same as Node->Flags */
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u8 flags; /* General flags */
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};
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/* Values for Flags above */
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#define ACPI_IGNORE_RETURN_VALUE 1
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/* Defines for return_flags field above */
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#define ACPI_OBJECT_REPAIRED 1
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#define ACPI_OBJECT_WRAPPED 2
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/* Info used by acpi_ns_initialize_devices */
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struct acpi_device_walk_info {
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struct acpi_table_desc *table_desc;
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struct acpi_evaluate_info *evaluate_info;
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u32 device_count;
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u32 num_STA;
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u32 num_INI;
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};
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/* TBD: [Restructure] Merge with struct above */
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struct acpi_walk_info {
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u32 debug_level;
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u32 count;
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acpi_owner_id owner_id;
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u8 display_type;
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};
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/* Display Types */
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#define ACPI_DISPLAY_SUMMARY (u8) 0
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#define ACPI_DISPLAY_OBJECTS (u8) 1
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#define ACPI_DISPLAY_MASK (u8) 1
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#define ACPI_DISPLAY_SHORT (u8) 2
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#endif
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