/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * fw_tables.h - Parsing support for ACPI and ACPI-like tables provided by * platform or device firmware * * Copyright (C) 2001 Paul Diefenbaugh * Copyright (C) 2023 Intel Corp. */ #ifndef _FW_TABLE_H_ #define _FW_TABLE_H_ union acpi_subtable_headers; typedef int (*acpi_tbl_entry_handler)(union acpi_subtable_headers *header, const unsigned long end); typedef int (*acpi_tbl_entry_handler_arg)(union acpi_subtable_headers *header, void *arg, const unsigned long end); struct acpi_subtable_proc { int id; acpi_tbl_entry_handler handler; acpi_tbl_entry_handler_arg handler_arg; void *arg; int count; }; union fw_table_header { struct acpi_table_header acpi; struct acpi_table_cdat cdat; }; union acpi_subtable_headers { struct acpi_subtable_header common; struct acpi_hmat_structure hmat; struct acpi_prmt_module_header prmt; struct acpi_cedt_header cedt; struct acpi_cdat_header cdat; }; int acpi_parse_entries_array(char *id, unsigned long table_size, union fw_table_header *table_header, unsigned long max_length, struct acpi_subtable_proc *proc, int proc_num, unsigned int max_entries); int cdat_table_parse(enum acpi_cdat_type type, acpi_tbl_entry_handler_arg handler_arg, void *arg, struct acpi_table_cdat *table_header, unsigned long length); /* CXL is the only non-ACPI consumer of the FIRMWARE_TABLE library */ #if IS_ENABLED(CONFIG_ACPI) && !IS_ENABLED(CONFIG_CXL_BUS) #define EXPORT_SYMBOL_FWTBL_LIB(x) EXPORT_SYMBOL_ACPI_LIB(x) #define __init_or_fwtbl_lib __init_or_acpilib #else #define EXPORT_SYMBOL_FWTBL_LIB(x) EXPORT_SYMBOL_NS_GPL(x, "CXL") #define __init_or_fwtbl_lib #endif #endif