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 <asm/sfi.h>
   9 #include <asm/mpspec.h>
  10 #include <asm/smbios.h>
  11 #include <asm/tables.h>
  12 #include <asm/acpi_table.h>
  13
  14 u8 table_compute_checksum(void *v, int len)
  15 {
  16         u8 *bytes = v;
  17         u8 checksum = 0;
  18         int i;
  19
  20         for (i = 0; i < len; i++)
  21                 checksum -= bytes[i];
  22
  23         return checksum;
  24 }
  25
  26 void table_fill_string(char *dest, const char *src, size_t n, char pad)
  27 {
  28         int start, len;
  29         int i;
  30
  31         strncpy(dest, src, n);
  32
  33         /* Fill the remaining bytes with pad */
  34         len = strlen(src);
  35         start = len < n ? len : n;
  36         for (i = start; i < n; i++)
  37                 dest[i] = pad;
  38 }
  39
  40 void write_tables(void)
  41 {
  42         u32 __maybe_unused rom_table_start = ROM_TABLE_ADDR;
  43         u32 __maybe_unused rom_table_end;
  44
  45 #ifdef CONFIG_GENERATE_PIRQ_TABLE
  46         rom_table_end = write_pirq_routing_table(rom_table_start);
  47         rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
  48         rom_table_start = rom_table_end;
  49 #endif
  50 #ifdef CONFIG_GENERATE_SFI_TABLE
  51         rom_table_end = write_sfi_table(rom_table_start);
  52         rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
  53         rom_table_start = rom_table_end;
  54 #endif
  55 #ifdef CONFIG_GENERATE_MP_TABLE
  56         rom_table_end = write_mp_table(rom_table_start);
  57         rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
  58         rom_table_start = rom_table_end;
  59 #endif
  60 #ifdef CONFIG_GENERATE_ACPI_TABLE
  61         rom_table_end = write_acpi_tables(rom_table_start);
  62         rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
  63         rom_table_start = rom_table_end;
  64 #endif
  65 #ifdef CONFIG_GENERATE_SMBIOS_TABLE
  66         rom_table_end = write_smbios_table(rom_table_start);
  67         rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
  68         rom_table_start = rom_table_end;
  69 #endif
  70 }