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// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0/****************************************************************************** * * Module Name: exresop - AML Interpreter operand/object resolution * * Copyright (C) 2000 - 2019, Intel Corp. * *****************************************************************************/ACPI_MODULE_NAME("exresop")/* Local prototypes */static acpi_statusacpi_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_statusacpi_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