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

   1/*
   2 * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#include <common.h>
   8#include <smbios.h>
   9#include <asm/sfi.h>
  10#include <asm/mpspec.h>
  11#include <asm/tables.h>
  12#include <asm/acpi_table.h>
  13#include <asm/coreboot_tables.h>
  14
  15/**
  16 * Function prototype to write a specific configuration table
  17 *
  18 * @addr:       start address to write the table
  19 * @return:     end address of the table
  20 */
  21typedef ulong (*table_write)(ulong addr);
  22
  23static table_write table_write_funcs[] = {
  24#ifdef CONFIG_GENERATE_PIRQ_TABLE
  25        write_pirq_routing_table,
  26#endif
  27#ifdef CONFIG_GENERATE_SFI_TABLE
  28        write_sfi_table,
  29#endif
  30#ifdef CONFIG_GENERATE_MP_TABLE
  31        write_mp_table,
  32#endif
  33#ifdef CONFIG_GENERATE_ACPI_TABLE
  34        write_acpi_tables,
  35#endif
  36#ifdef CONFIG_GENERATE_SMBIOS_TABLE
  37        write_smbios_table,
  38#endif
  39};
  40
  41void table_fill_string(char *dest, const char *src, size_t n, char pad)
  42{
  43        int start, len;
  44        int i;
  45
  46        strncpy(dest, src, n);
  47
  48        /* Fill the remaining bytes with pad */
  49        len = strlen(src);
  50        start = len < n ? len : n;
  51        for (i = start; i < n; i++)
  52                dest[i] = pad;
  53}
  54
  55void write_tables(void)
  56{
  57        u32 rom_table_start = ROM_TABLE_ADDR;
  58        u32 rom_table_end;
  59#ifdef CONFIG_SEABIOS
  60        u32 high_table, table_size;
  61        struct memory_area cfg_tables[ARRAY_SIZE(table_write_funcs) + 1];
  62#endif
  63        int i;
  64
  65        for (i = 0; i < ARRAY_SIZE(table_write_funcs); i++) {
  66                rom_table_end = table_write_funcs[i](rom_table_start);
  67                rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
  68
  69#ifdef CONFIG_SEABIOS
  70                table_size = rom_table_end - rom_table_start;
  71                high_table = (u32)high_table_malloc(table_size);
  72                if (high_table) {
  73                        table_write_funcs[i](high_table);
  74
  75                        cfg_tables[i].start = high_table;
  76                        cfg_tables[i].size = table_size;
  77                } else {
  78                        printf("%d: no memory for configuration tables\n", i);
  79                }
  80#endif
  81
  82                rom_table_start = rom_table_end;
  83        }
  84
  85#ifdef CONFIG_SEABIOS
  86        /* make sure the last item is zero */
  87        cfg_tables[i].size = 0;
  88        write_coreboot_table(CB_TABLE_ADDR, cfg_tables);
  89#endif
  90}
  91