/* * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com> * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef _X86_TABLES_H_ #define _X86_TABLES_H_ #include <tables_csum.h> #define ROM_TABLE_ADDR CONFIG_ROM_TABLE_ADDR #define ROM_TABLE_END (CONFIG_ROM_TABLE_ADDR + CONFIG_ROM_TABLE_SIZE - 1) #define ROM_TABLE_ALIGN 1024 /* SeaBIOS expects coreboot tables at address range 0x0000-0x1000 */ #define CB_TABLE_ADDR 0x800 /** * table_compute_checksum() - Compute a table checksum * * This computes an 8-bit checksum for the configuration table. * All bytes in the configuration table, including checksum itself and * reserved bytes must add up to zero. * * @v: configuration table base address * @len: configuration table size * @return: the 8-bit checksum */ u8 table_compute_checksum(void *v, int len); /** * table_fill_string() - Fill a string with pad in the configuration table * * This fills a string in the configuration table. It copies number of bytes * from the source string, and if source string length is shorter than the * required size to copy, pad the table string with the given pad character. * * @dest: where to fill a string * @src: where to copy from * @n: number of bytes to copy * @pad: character to pad the remaining bytes */ void table_fill_string(char *dest, const char *src, size_t n, char pad); /** * write_tables() - Write x86 configuration tables * * This writes x86 configuration tables, including PIRQ routing table, * Multi-Processor table and ACPI table. Whether a specific type of * configuration table is written is controlled by a Kconfig option. */ void write_tables(void); /** * write_pirq_routing_table() - Write PIRQ routing table * * This writes PIRQ routing table at a given address. * * @start: start address to write PIRQ routing table * @return: end address of PIRQ routing table */ ulong write_pirq_routing_table(ulong start); #endif /* _X86_TABLES_H_ */