LXR uboot/arch/x86/lib/tables.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
   4 */
   5
   6#include <common.h>
   7#include <smbios.h>
   8#include <asm/sfi.h>
   9#include <asm/mpspec.h>
  10#include <asm/tables.h>
  11#include <asm/acpi_table.h>
  12#include <asm/coreboot_tables.h>
  13
  14/**
  15 * Function prototype to write a specific configuration table
  16 *
  17 * @addr:       start address to write the table
  18 * @return:     end address of the table
  19 */
  20typedef ulong (*table_write)(ulong addr);
  21
  22static table_write table_write_funcs[] = {
  23#ifdef CONFIG_GENERATE_PIRQ_TABLE
  24        write_pirq_routing_table,
  25#endif
  26#ifdef CONFIG_GENERATE_SFI_TABLE
  27        write_sfi_table,
  28#endif
  29#ifdef CONFIG_GENERATE_MP_TABLE
  30        write_mp_table,
  31#endif
  32#ifdef CONFIG_GENERATE_ACPI_TABLE
  33        write_acpi_tables,
  34#endif
  35#ifdef CONFIG_GENERATE_SMBIOS_TABLE
  36        write_smbios_table,
  37#endif
  38};
  39
  40void table_fill_string(char *dest, const char *src, size_t n, char pad)
  41{
  42        int start, len;
  43        int i;
  44
  45        strncpy(dest, src, n);
  46
  47        /* Fill the remaining bytes with pad */
  48        len = strlen(src);
  49        start = len < n ? len : n;
  50        for (i = start; i < n; i++)
  51                dest[i] = pad;
  52}
  53
  54void write_tables(void)
  55{
  56        u32 rom_table_start = ROM_TABLE_ADDR;
  57        u32 rom_table_end;
  58#ifdef CONFIG_SEABIOS
  59        u32 high_table, table_size;
  60        struct memory_area cfg_tables[ARRAY_SIZE(table_write_funcs) + 1];
  61#endif
  62        int i;
  63
  64        for (i = 0; i < ARRAY_SIZE(table_write_funcs); i++) {
  65                rom_table_end = table_write_funcs[i](rom_table_start);
  66                rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
  67
  68#ifdef CONFIG_SEABIOS
  69                table_size = rom_table_end - rom_table_start;
  70                high_table = (u32)high_table_malloc(table_size);
  71                if (high_table) {
  72                        table_write_funcs[i](high_table);
  73
  74                        cfg_tables[i].start = high_table;
  75                        cfg_tables[i].size = table_size;
  76                } else {
  77                        printf("%d: no memory for configuration tables\n", i);
  78                }
  79#endif
  80
  81                rom_table_start = rom_table_end;
  82        }
  83
  84#ifdef CONFIG_SEABIOS
  85        /* make sure the last item is zero */
  86        cfg_tables[i].size = 0;
  87        write_coreboot_table(CB_TABLE_ADDR, cfg_tables);
  88#endif
  89}
  90