diff options
Diffstat (limited to 'drivers/acpi/executer/exresop.c')
| -rw-r--r-- | drivers/acpi/executer/exresop.c | 701 |
1 files changed, 0 insertions, 701 deletions
diff --git a/drivers/acpi/executer/exresop.c b/drivers/acpi/executer/exresop.c deleted file mode 100644 index 7602eaf5c479..000000000000 --- a/drivers/acpi/executer/exresop.c +++ /dev/null @@ -1,701 +0,0 @@ - -/****************************************************************************** - * - * Module Name: exresop - AML Interpreter operand/object resolution - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2008, Intel Corp. - * 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. - */ - -#include <acpi/acpi.h> -#include <acpi/accommon.h> -#include <acpi/amlcode.h> -#include <acpi/acparser.h> -#include <acpi/acinterp.h> -#include <acpi/acnamesp.h> - -#define _COMPONENT ACPI_EXECUTER -ACPI_MODULE_NAME("exresop") - -/* Local prototypes */ -static acpi_status -acpi_ex_check_object_type(acpi_object_type type_needed, - acpi_object_type this_type, void *object); - -/******************************************************************************* - * - * FUNCTION: acpi_ex_check_object_type - * - * PARAMETERS: type_needed Object type needed - * this_type Actual object type - * Object Object pointer - * - * RETURN: Status - * - * DESCRIPTION: Check required type against actual type - * - ******************************************************************************/ - -static acpi_status -acpi_ex_check_object_type(acpi_object_type type_needed, - acpi_object_type this_type, void *object) -{ - ACPI_FUNCTION_ENTRY(); - - if (type_needed == ACPI_TYPE_ANY) { - - /* All types OK, so we don't perform any typechecks */ - - return (AE_OK); - } - - if (type_needed == ACPI_TYPE_LOCAL_REFERENCE) { - /* - * Allow the AML "Constant" opcodes (Zero, One, etc.) to be reference - * objects and thus allow them to be targets. (As per the ACPI - * specification, a store to a constant is a noop.) - */ - if ((this_type == ACPI_TYPE_INTEGER) && - (((union acpi_operand_object *)object)->common. - flags & AOPOBJ_AML_CONSTANT)) { - return (AE_OK); - } - } - - if (type_needed != this_type) { - ACPI_ERROR((AE_INFO, - "Needed type [%s], found [%s] %p", - acpi_ut_get_type_name(type_needed), - acpi_ut_get_type_name(this_type), object)); - - return (AE_AML_OPERAND_TYPE); - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ex_resolve_operands - * - * PARAMETERS: Opcode - Opcode being interpreted - * stack_ptr - Pointer to the operand stack to be - * resolved - * walk_state - Current state - * - * RETURN: Status - * - * DESCRIPTION: Convert multiple input operands to the types required by the - * target operator. - * - * Each 5-bit group in arg_types represents one required - * operand and indicates the required Type. The corresponding operand - * will be converted to the required type if possible, otherwise we - * abort with an exception. - * - ******************************************************************************/ - -acpi_status -acpi_ex_resolve_operands(u16 opcode, - union acpi_operand_object ** stack_ptr, - struct acpi_walk_state * walk_state) -{ - union acpi_operand_object *obj_desc; - acpi_status status = AE_OK; - u8 object_type; - u32 arg_types; - const struct acpi_opcode_info *op_info; - u32 this_arg_type; - acpi_object_type type_needed; - u16 target_op = 0; - - ACPI_FUNCTION_TRACE_U32(ex_resolve_operands, opcode); - - op_info = acpi_ps_get_opcode_info(opcode); - if (op_info->class == AML_CLASS_UNKNOWN) { - return_ACPI_STATUS(AE_AML_BAD_OPCODE); - } - - arg_types = op_info->runtime_args; - if (arg_types == ARGI_INVALID_OPCODE) { - ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", opcode)); - - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Opcode %X [%s] RequiredOperandTypes=%8.8X\n", - opcode, op_info->name, arg_types)); - - /* - * Normal exit is with (arg_types == 0) at end of argument list. - * Function will return an exception from within the loop upon - * finding an entry which is not (or cannot be converted - * to) the required type; if stack underflows; or upon - * finding a NULL stack entry (which should not happen). - */ - while (GET_CURRENT_ARG_TYPE(arg_types)) { - if (!stack_ptr || !*stack_ptr) { - ACPI_ERROR((AE_INFO, "Null stack entry at %p", - stack_ptr)); - - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - /* Extract useful items */ - - obj_desc = *stack_ptr; - - /* Decode the descriptor type */ - - switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { - case ACPI_DESC_TYPE_NAMED: - - /* Namespace Node */ - - object_type = - ((struct acpi_namespace_node *)obj_desc)->type; - - /* - * Resolve an alias object. The construction of these objects - * guarantees that there is only one level of alias indirection; - * thus, the attached object is always the aliased namespace node - */ - if (object_type == ACPI_TYPE_LOCAL_ALIAS) { - obj_desc = - acpi_ns_get_attached_object((struct - acpi_namespace_node - *)obj_desc); - *stack_ptr = obj_desc; - object_type = - ((struct acpi_namespace_node *)obj_desc)-> - type; - } - break; - - case ACPI_DESC_TYPE_OPERAND: - - /* ACPI internal object */ - - object_type = ACPI_GET_OBJECT_TYPE(obj_desc); - - /* Check for bad acpi_object_type */ - - if (!acpi_ut_valid_object_type(object_type)) { - ACPI_ERROR((AE_INFO, - "Bad operand object type [%X]", - object_type)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) { - - /* Validate the Reference */ - - switch (obj_desc->reference.class) { - case ACPI_REFCLASS_DEBUG: - - target_op = AML_DEBUG_OP; - - /*lint -fallthrough */ - - case ACPI_REFCLASS_ARG: - case ACPI_REFCLASS_LOCAL: - case ACPI_REFCLASS_INDEX: - case ACPI_REFCLASS_REFOF: - case ACPI_REFCLASS_TABLE: /* ddb_handle from LOAD_OP or LOAD_TABLE_OP */ - case ACPI_REFCLASS_NAME: /* Reference to a named object */ - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Operand is a Reference, Class [%s] %2.2X\n", - acpi_ut_get_reference_name - (obj_desc), - obj_desc->reference. - class)); - break; - - default: - - ACPI_ERROR((AE_INFO, - "Unknown Reference Class %2.2X in %p", - obj_desc->reference.class, - obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - } - break; - - default: - - /* Invalid descriptor */ - - ACPI_ERROR((AE_INFO, "Invalid descriptor %p [%s]", - obj_desc, - acpi_ut_get_descriptor_name(obj_desc))); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - /* Get one argument type, point to the next */ - - this_arg_type = GET_CURRENT_ARG_TYPE(arg_types); - INCREMENT_ARG_LIST(arg_types); - - /* - * Handle cases where the object does not need to be - * resolved to a value - */ - switch (this_arg_type) { - case ARGI_REF_OR_STRING: /* Can be a String or Reference */ - - if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == - ACPI_DESC_TYPE_OPERAND) - && (ACPI_GET_OBJECT_TYPE(obj_desc) == - ACPI_TYPE_STRING)) { - /* - * String found - the string references a named object and - * must be resolved to a node - */ - goto next_operand; - } - - /* - * Else not a string - fall through to the normal Reference - * case below - */ - /*lint -fallthrough */ - - case ARGI_REFERENCE: /* References: */ - case ARGI_INTEGER_REF: - case ARGI_OBJECT_REF: - case ARGI_DEVICE_REF: - case ARGI_TARGETREF: /* Allows implicit conversion rules before store */ - case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */ - case ARGI_SIMPLE_TARGET: /* Name, Local, or Arg - no implicit conversion */ - - /* - * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE - * A Namespace Node is OK as-is - */ - if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) == - ACPI_DESC_TYPE_NAMED) { - goto next_operand; - } - - status = - acpi_ex_check_object_type(ACPI_TYPE_LOCAL_REFERENCE, - object_type, obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - goto next_operand; - - case ARGI_DATAREFOBJ: /* Store operator only */ - - /* - * We don't want to resolve index_op reference objects during - * a store because this would be an implicit de_ref_of operation. - * Instead, we just want to store the reference object. - * -- All others must be resolved below. - */ - if ((opcode == AML_STORE_OP) && - (ACPI_GET_OBJECT_TYPE(*stack_ptr) == - ACPI_TYPE_LOCAL_REFERENCE) - && ((*stack_ptr)->reference.class == ACPI_REFCLASS_INDEX)) { - goto next_operand; - } - break; - - default: - /* All cases covered above */ - break; - } - - /* - * Resolve this object to a value - */ - status = acpi_ex_resolve_to_value(stack_ptr, walk_state); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the resolved object */ - - obj_desc = *stack_ptr; - - /* - * Check the resulting object (value) type - */ - switch (this_arg_type) { - /* - * For the simple cases, only one type of resolved object - * is allowed - */ - case ARGI_MUTEX: - - /* Need an operand of type ACPI_TYPE_MUTEX */ - - type_needed = ACPI_TYPE_MUTEX; - break; - - case ARGI_EVENT: - - /* Need an operand of type ACPI_TYPE_EVENT */ - - type_needed = ACPI_TYPE_EVENT; - break; - - case ARGI_PACKAGE: /* Package */ - - /* Need an operand of type ACPI_TYPE_PACKAGE */ - - type_needed = ACPI_TYPE_PACKAGE; - break; - - case ARGI_ANYTYPE: - - /* Any operand type will do */ - - type_needed = ACPI_TYPE_ANY; - break; - - case ARGI_DDBHANDLE: - - /* Need an operand of type ACPI_TYPE_DDB_HANDLE */ - - type_needed = ACPI_TYPE_LOCAL_REFERENCE; - break; - - /* - * The more complex cases allow multiple resolved object types - */ - case ARGI_INTEGER: - - /* - * Need an operand of type ACPI_TYPE_INTEGER, - * But we can implicitly convert from a STRING or BUFFER - * Aka - "Implicit Source Operand Conversion" - */ - status = - acpi_ex_convert_to_integer(obj_desc, stack_ptr, 16); - if (ACPI_FAILURE(status)) { - if (status == AE_TYPE) { - ACPI_ERROR((AE_INFO, - "Needed [Integer/String/Buffer], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - return_ACPI_STATUS(status); - } - - if (obj_desc != *stack_ptr) { - acpi_ut_remove_reference(obj_desc); - } - goto next_operand; - - case ARGI_BUFFER: - - /* - * Need an operand of type ACPI_TYPE_BUFFER, - * But we can implicitly convert from a STRING or INTEGER - * Aka - "Implicit Source Operand Conversion" - */ - status = acpi_ex_convert_to_buffer(obj_desc, stack_ptr); - if (ACPI_FAILURE(status)) { - if (status == AE_TYPE) { - ACPI_ERROR((AE_INFO, - "Needed [Integer/String/Buffer], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - return_ACPI_STATUS(status); - } - - if (obj_desc != *stack_ptr) { - acpi_ut_remove_reference(obj_desc); - } - goto next_operand; - - case ARGI_STRING: - - /* - * Need an operand of type ACPI_TYPE_STRING, - * But we can implicitly convert from a BUFFER or INTEGER - * Aka - "Implicit Source Operand Conversion" - */ - status = acpi_ex_convert_to_string(obj_desc, stack_ptr, - ACPI_IMPLICIT_CONVERT_HEX); - if (ACPI_FAILURE(status)) { - if (status == AE_TYPE) { - ACPI_ERROR((AE_INFO, - "Needed [Integer/String/Buffer], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - - return_ACPI_STATUS(status); - } - - if (obj_desc != *stack_ptr) { - acpi_ut_remove_reference(obj_desc); - } - goto next_operand; - - case ARGI_COMPUTEDATA: - - /* Need an operand of type INTEGER, STRING or BUFFER */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - - /* Valid operand */ - break; - - default: - ACPI_ERROR((AE_INFO, - "Needed [Integer/String/Buffer], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - goto next_operand; - - case ARGI_BUFFER_OR_STRING: - - /* Need an operand of type STRING or BUFFER */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - - /* Valid operand */ - break; - - case ACPI_TYPE_INTEGER: - - /* Highest priority conversion is to type Buffer */ - - status = - acpi_ex_convert_to_buffer(obj_desc, - stack_ptr); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (obj_desc != *stack_ptr) { - acpi_ut_remove_reference(obj_desc); - } - break; - - default: - ACPI_ERROR((AE_INFO, - "Needed [Integer/String/Buffer], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - goto next_operand; - - case ARGI_DATAOBJECT: - /* - * ARGI_DATAOBJECT is only used by the size_of operator. - * Need a buffer, string, package, or ref_of reference. - * - * The only reference allowed here is a direct reference to - * a namespace node. - */ - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_PACKAGE: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_LOCAL_REFERENCE: - - /* Valid operand */ - break; - - default: - ACPI_ERROR((AE_INFO, - "Needed [Buffer/String/Package/Reference], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - goto next_operand; - - case ARGI_COMPLEXOBJ: - - /* Need a buffer or package or (ACPI 2.0) String */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_PACKAGE: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - - /* Valid operand */ - break; - - default: - ACPI_ERROR((AE_INFO, - "Needed [Buffer/String/Package], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - goto next_operand; - - case ARGI_REGION_OR_BUFFER: /* Used by Load() only */ - - /* Need an operand of type REGION or a BUFFER (which could be a resolved region field) */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_REGION: - - /* Valid operand */ - break; - - default: - ACPI_ERROR((AE_INFO, - "Needed [Region/Buffer], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - goto next_operand; - - case ARGI_DATAREFOBJ: - - /* Used by the Store() operator only */ - - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_PACKAGE: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: - case ACPI_TYPE_BUFFER_FIELD: - case ACPI_TYPE_LOCAL_REFERENCE: - case ACPI_TYPE_LOCAL_REGION_FIELD: - case ACPI_TYPE_LOCAL_BANK_FIELD: - case ACPI_TYPE_LOCAL_INDEX_FIELD: - case ACPI_TYPE_DDB_HANDLE: - - /* Valid operand */ - break; - - default: - - if (acpi_gbl_enable_interpreter_slack) { - /* - * Enable original behavior of Store(), allowing any and all - * objects as the source operand. The ACPI spec does not - * allow this, however. - */ - break; - } - - if (target_op == AML_DEBUG_OP) { - - /* Allow store of any object to the Debug object */ - - break; - } - - ACPI_ERROR((AE_INFO, - "Needed Integer/Buffer/String/Package/Ref/Ddb], found [%s] %p", - acpi_ut_get_object_type_name - (obj_desc), obj_desc)); - - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); - } - goto next_operand; - - default: - - /* Unknown type */ - - ACPI_ERROR((AE_INFO, - "Internal - Unknown ARGI (required operand) type %X", - this_arg_type)); - - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Make sure that the original object was resolved to the - * required object type (Simple cases only). - */ - status = acpi_ex_check_object_type(type_needed, - ACPI_GET_OBJECT_TYPE - (*stack_ptr), *stack_ptr); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - next_operand: - /* - * If more operands needed, decrement stack_ptr to point - * to next operand on stack - */ - if (GET_CURRENT_ARG_TYPE(arg_types)) { - stack_ptr--; - } - } - - ACPI_DUMP_OPERANDS(walk_state->operands, - acpi_ps_get_opcode_name(opcode), - walk_state->num_operands); - - return_ACPI_STATUS(status); -} |