summaryrefslogtreecommitdiff
path: root/arch/x86/lib/tables.c
blob: 025b183d6bd7a61788e5680c370f82d555397fdc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
/*
 * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <smbios.h>
#include <asm/sfi.h>
#include <asm/mpspec.h>
#include <asm/tables.h>
#include <asm/acpi_table.h>
#include <asm/coreboot_tables.h>

static u32 write_smbios_table_wrapper(u32 addr)
{
	return write_smbios_table(addr);
}

/**
 * Function prototype to write a specific configuration table
 *
 * @addr:	start address to write the table
 * @return:	end address of the table
 */
typedef u32 (*table_write)(u32 addr);

static table_write table_write_funcs[] = {
#ifdef CONFIG_GENERATE_PIRQ_TABLE
	write_pirq_routing_table,
#endif
#ifdef CONFIG_GENERATE_SFI_TABLE
	write_sfi_table,
#endif
#ifdef CONFIG_GENERATE_MP_TABLE
	write_mp_table,
#endif
#ifdef CONFIG_GENERATE_ACPI_TABLE
	write_acpi_tables,
#endif
#ifdef CONFIG_GENERATE_SMBIOS_TABLE
	write_smbios_table_wrapper,
#endif
};

void table_fill_string(char *dest, const char *src, size_t n, char pad)
{
	int start, len;
	int i;

	strncpy(dest, src, n);

	/* Fill the remaining bytes with pad */
	len = strlen(src);
	start = len < n ? len : n;
	for (i = start; i < n; i++)
		dest[i] = pad;
}

void write_tables(void)
{
	u32 rom_table_start = ROM_TABLE_ADDR;
	u32 rom_table_end;
#ifdef CONFIG_SEABIOS
	u32 high_table, table_size;
	struct memory_area cfg_tables[ARRAY_SIZE(table_write_funcs) + 1];
#endif
	int i;

	for (i = 0; i < ARRAY_SIZE(table_write_funcs); i++) {
		rom_table_end = table_write_funcs[i](rom_table_start);
		rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);

#ifdef CONFIG_SEABIOS
		table_size = rom_table_end - rom_table_start;
		high_table = (u32)high_table_malloc(table_size);
		if (high_table) {
			table_write_funcs[i](high_table);

			cfg_tables[i].start = high_table;
			cfg_tables[i].size = table_size;
		} else {
			printf("%d: no memory for configuration tables\n", i);
		}
#endif

		rom_table_start = rom_table_end;
	}

#ifdef CONFIG_SEABIOS
	/* make sure the last item is zero */
	cfg_tables[i].size = 0;
	write_coreboot_table(CB_TABLE_ADDR, cfg_tables);
#endif
}