Merge tag 'xilinx-for-v2021.04-rc3' of https://gitlab.denx.de/u-boot/custodians/u...
[platform/kernel/u-boot.git] / 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 <bloblist.h>
8 #include <log.h>
9 #include <malloc.h>
10 #include <smbios.h>
11 #include <acpi/acpi_table.h>
12 #include <asm/global_data.h>
13 #include <asm/sfi.h>
14 #include <asm/mpspec.h>
15 #include <asm/tables.h>
16 #include <asm/coreboot_tables.h>
17
18 DECLARE_GLOBAL_DATA_PTR;
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 ulong (*table_write)(ulong addr);
27
28 /**
29  * struct table_info - Information about each table to write
30  *
31  * @name: Name of table (for debugging)
32  * @write: Function to call to write this table
33  * @tag: Bloblist tag if using CONFIG_BLOBLIST_TABLES
34  * @size: Maximum table size
35  * @align: Table alignment in bytes
36  */
37 struct table_info {
38         const char *name;
39         table_write write;
40         enum bloblist_tag_t tag;
41         int size;
42         int align;
43 };
44
45 static struct table_info table_list[] = {
46 #ifdef CONFIG_GENERATE_PIRQ_TABLE
47         { "pirq", write_pirq_routing_table },
48 #endif
49 #ifdef CONFIG_GENERATE_SFI_TABLE
50         { "sfi", write_sfi_table, },
51 #endif
52 #ifdef CONFIG_GENERATE_MP_TABLE
53         { "mp", write_mp_table, },
54 #endif
55 #ifdef CONFIG_GENERATE_ACPI_TABLE
56         { "acpi", write_acpi_tables, BLOBLISTT_ACPI_TABLES, 0x10000, 0x1000},
57 #endif
58 #ifdef CONFIG_GENERATE_SMBIOS_TABLE
59         { "smbios", write_smbios_table, BLOBLISTT_SMBIOS_TABLES, 0x1000, 0x100},
60 #endif
61 };
62
63 void table_fill_string(char *dest, const char *src, size_t n, char pad)
64 {
65         int start, len;
66         int i;
67
68         strncpy(dest, src, n);
69
70         /* Fill the remaining bytes with pad */
71         len = strlen(src);
72         start = len < n ? len : n;
73         for (i = start; i < n; i++)
74                 dest[i] = pad;
75 }
76
77 int write_tables(void)
78 {
79         u32 rom_table_start;
80         u32 rom_table_end;
81         u32 high_table, table_size;
82         struct memory_area cfg_tables[ARRAY_SIZE(table_list) + 1];
83         int i;
84
85         rom_table_start = ROM_TABLE_ADDR;
86
87         debug("Writing tables to %x:\n", rom_table_start);
88         for (i = 0; i < ARRAY_SIZE(table_list); i++) {
89                 const struct table_info *table = &table_list[i];
90                 int size = table->size ? : CONFIG_ROM_TABLE_SIZE;
91
92                 if (IS_ENABLED(CONFIG_BLOBLIST_TABLES) && table->tag) {
93                         rom_table_start = (ulong)bloblist_add(table->tag, size,
94                                                               table->align);
95                         if (!rom_table_start)
96                                 return log_msg_ret("bloblist", -ENOBUFS);
97                 }
98                 rom_table_end = table->write(rom_table_start);
99                 rom_table_end = ALIGN(rom_table_end, ROM_TABLE_ALIGN);
100
101                 if (IS_ENABLED(CONFIG_SEABIOS)) {
102                         table_size = rom_table_end - rom_table_start;
103                         high_table = (u32)(ulong)high_table_malloc(table_size);
104                         if (high_table) {
105                                 table->write(high_table);
106
107                                 cfg_tables[i].start = high_table;
108                                 cfg_tables[i].size = table_size;
109                         } else {
110                                 printf("%d: no memory for configuration tables\n",
111                                        i);
112                                 return -ENOSPC;
113                         }
114                 }
115
116                 debug("- wrote '%s' to %x, end %x\n", table->name,
117                       rom_table_start, rom_table_end);
118                 if (rom_table_end - rom_table_start > size) {
119                         log_err("Out of space for configuration tables: need %x, have %x\n",
120                                 rom_table_end - rom_table_start, size);
121                         return log_msg_ret("bloblist", -ENOSPC);
122                 }
123                 rom_table_start = rom_table_end;
124         }
125
126         if (IS_ENABLED(CONFIG_SEABIOS)) {
127                 /* make sure the last item is zero */
128                 cfg_tables[i].size = 0;
129                 write_coreboot_table(CB_TABLE_ADDR, cfg_tables);
130         }
131
132         if (IS_ENABLED(CONFIG_BLOBLIST_TABLES)) {
133                 void *ptr = (void *)CONFIG_ROM_TABLE_ADDR;
134
135                 /* Write an RSDP pointing to the tables */
136                 if (IS_ENABLED(CONFIG_GENERATE_ACPI_TABLE)) {
137                         struct acpi_ctx *ctx = gd_acpi_ctx();
138
139                         acpi_write_rsdp(ptr, ctx->rsdt, ctx->xsdt);
140                         ptr += ALIGN(sizeof(struct acpi_rsdp), 16);
141                 }
142                 if (IS_ENABLED(CONFIG_GENERATE_SMBIOS_TABLE)) {
143                         void *smbios;
144
145                         smbios = bloblist_find(BLOBLISTT_SMBIOS_TABLES, 0);
146                         if (!smbios)
147                                 return log_msg_ret("smbios", -ENOENT);
148                         memcpy(ptr, smbios, sizeof(struct smbios_entry));
149                 }
150         }
151
152         debug("- done writing tables\n");
153
154         return 0;
155 }