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/* 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 <paul.s.diefenbaugh@intel.com>
* 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
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