xref: /openbmc/u-boot/arch/x86/lib/tables.c (revision dd93a8e9e688f4c448092a275bf7db3e16d21c6f)
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  static u32 write_smbios_table_wrapper(u32 addr)
16  {
17  	return write_smbios_table(addr);
18  }
19  
20  /**
21   * Function prototype to write a specific configuration table
22   *
23   * @addr:	start address to write the table
24   * @return:	end address of the table
25   */
26  typedef u32 (*table_write)(u32 addr);
27  
28  static table_write table_write_funcs[] = {
29  #ifdef CONFIG_GENERATE_PIRQ_TABLE
30  	write_pirq_routing_table,
31  #endif
32  #ifdef CONFIG_GENERATE_SFI_TABLE
33  	write_sfi_table,
34  #endif
35  #ifdef CONFIG_GENERATE_MP_TABLE
36  	write_mp_table,
37  #endif
38  #ifdef CONFIG_GENERATE_ACPI_TABLE
39  	write_acpi_tables,
40  #endif
41  #ifdef CONFIG_GENERATE_SMBIOS_TABLE
42  	write_smbios_table_wrapper,
43  #endif
44  };
45  
46  void table_fill_string(char *dest, const char *src, size_t n, char pad)
47  {
48  	int start, len;
49  	int i;
50  
51  	strncpy(dest, src, n);
52  
53  	/* Fill the remaining bytes with pad */
54  	len = strlen(src);
55  	start = len < n ? len : n;
56  	for (i = start; i < n; i++)
57  		dest[i] = pad;
58  }
59  
60  void write_tables(void)
61  {
62  	u32 rom_table_start = ROM_TABLE_ADDR;
63  	u32 rom_table_end;
64  #ifdef CONFIG_SEABIOS
65  	u32 high_table, table_size;
66  	struct memory_area cfg_tables[ARRAY_SIZE(table_write_funcs) + 1];
67  #endif
68  	int i;
69  
70  	for (i = 0; i < ARRAY_SIZE(table_write_funcs); i++) {
71  		rom_table_end = table_write_funcs[i](rom_table_start);
72  		rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
73  
74  #ifdef CONFIG_SEABIOS
75  		table_size = rom_table_end - rom_table_start;
76  		high_table = (u32)high_table_malloc(table_size);
77  		if (high_table) {
78  			table_write_funcs[i](high_table);
79  
80  			cfg_tables[i].start = high_table;
81  			cfg_tables[i].size = table_size;
82  		} else {
83  			printf("%d: no memory for configuration tables\n", i);
84  		}
85  #endif
86  
87  		rom_table_start = rom_table_end;
88  	}
89  
90  #ifdef CONFIG_SEABIOS
91  	/* make sure the last item is zero */
92  	cfg_tables[i].size = 0;
93  	write_coreboot_table(CB_TABLE_ADDR, cfg_tables);
94  #endif
95  }
96