Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2003-2004 Eric Biederman |
| 5 | * Copyright (C) 2005-2009 coresystems GmbH |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License as |
| 9 | * published by the Free Software Foundation; version 2 of |
| 10 | * the License. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
| 20 | * MA 02110-1301 USA |
| 21 | */ |
| 22 | |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 23 | #include <console/console.h> |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 24 | #include <ip_checksum.h> |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 25 | #include <boot/tables.h> |
Stefan Reinauer | ca374d4 | 2008-01-18 16:16:45 +0000 | [diff] [blame] | 26 | #include <boot/coreboot_tables.h> |
| 27 | #include "coreboot_table.h" |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 28 | #include <string.h> |
| 29 | #include <version.h> |
Eric Biederman | b78c197 | 2004-10-14 20:54:17 +0000 | [diff] [blame] | 30 | #include <device/device.h> |
| 31 | #include <stdlib.h> |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 32 | |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 33 | static struct lb_header *lb_table_init(unsigned long addr) |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 34 | { |
| 35 | struct lb_header *header; |
| 36 | |
| 37 | /* 16 byte align the address */ |
| 38 | addr += 15; |
| 39 | addr &= ~15; |
| 40 | |
| 41 | header = (void *)addr; |
| 42 | header->signature[0] = 'L'; |
| 43 | header->signature[1] = 'B'; |
| 44 | header->signature[2] = 'I'; |
| 45 | header->signature[3] = 'O'; |
| 46 | header->header_bytes = sizeof(*header); |
| 47 | header->header_checksum = 0; |
| 48 | header->table_bytes = 0; |
| 49 | header->table_checksum = 0; |
| 50 | header->table_entries = 0; |
| 51 | return header; |
| 52 | } |
| 53 | |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 54 | static struct lb_record *lb_first_record(struct lb_header *header) |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 55 | { |
| 56 | struct lb_record *rec; |
| 57 | rec = (void *)(((char *)header) + sizeof(*header)); |
| 58 | return rec; |
| 59 | } |
| 60 | |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 61 | static struct lb_record *lb_last_record(struct lb_header *header) |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 62 | { |
| 63 | struct lb_record *rec; |
| 64 | rec = (void *)(((char *)header) + sizeof(*header) + header->table_bytes); |
| 65 | return rec; |
| 66 | } |
| 67 | |
Myles Watson | 2e67273 | 2009-11-12 16:38:03 +0000 | [diff] [blame^] | 68 | #if 0 |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 69 | static struct lb_record *lb_next_record(struct lb_record *rec) |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 70 | { |
| 71 | rec = (void *)(((char *)rec) + rec->size); |
| 72 | return rec; |
| 73 | } |
Myles Watson | 2e67273 | 2009-11-12 16:38:03 +0000 | [diff] [blame^] | 74 | #endif |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 75 | |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 76 | static struct lb_record *lb_new_record(struct lb_header *header) |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 77 | { |
| 78 | struct lb_record *rec; |
| 79 | rec = lb_last_record(header); |
| 80 | if (header->table_entries) { |
| 81 | header->table_bytes += rec->size; |
| 82 | } |
| 83 | rec = lb_last_record(header); |
| 84 | header->table_entries++; |
| 85 | rec->tag = LB_TAG_UNUSED; |
| 86 | rec->size = sizeof(*rec); |
| 87 | return rec; |
| 88 | } |
| 89 | |
| 90 | |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 91 | static struct lb_memory *lb_memory(struct lb_header *header) |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 92 | { |
| 93 | struct lb_record *rec; |
| 94 | struct lb_memory *mem; |
| 95 | rec = lb_new_record(header); |
| 96 | mem = (struct lb_memory *)rec; |
| 97 | mem->tag = LB_TAG_MEMORY; |
| 98 | mem->size = sizeof(*mem); |
| 99 | return mem; |
| 100 | } |
| 101 | |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 102 | static struct lb_serial *lb_serial(struct lb_header *header) |
Patrick Georgi | 8c2a0c1 | 2008-01-25 18:28:18 +0000 | [diff] [blame] | 103 | { |
Myles Watson | ec0ee64 | 2009-10-19 16:21:30 +0000 | [diff] [blame] | 104 | #if CONFIG_CONSOLE_SERIAL8250 |
Patrick Georgi | 8c2a0c1 | 2008-01-25 18:28:18 +0000 | [diff] [blame] | 105 | struct lb_record *rec; |
| 106 | struct lb_serial *serial; |
| 107 | rec = lb_new_record(header); |
| 108 | serial = (struct lb_serial *)rec; |
| 109 | serial->tag = LB_TAG_SERIAL; |
| 110 | serial->size = sizeof(*serial); |
Stefan Reinauer | 0867062 | 2009-06-30 15:17:49 +0000 | [diff] [blame] | 111 | serial->ioport = CONFIG_TTYS0_BASE; |
| 112 | serial->baud = CONFIG_TTYS0_BAUD; |
Patrick Georgi | 8c2a0c1 | 2008-01-25 18:28:18 +0000 | [diff] [blame] | 113 | return serial; |
| 114 | #else |
| 115 | return header; |
| 116 | #endif |
| 117 | } |
| 118 | |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 119 | static void add_console(struct lb_header *header, u16 consoletype) |
Patrick Georgi | 3bbf2ff | 2008-01-27 14:12:54 +0000 | [diff] [blame] | 120 | { |
Patrick Georgi | 3bbf2ff | 2008-01-27 14:12:54 +0000 | [diff] [blame] | 121 | struct lb_console *console; |
Patrick Georgi | 16cdbb2 | 2009-04-21 20:14:31 +0000 | [diff] [blame] | 122 | |
Patrick Georgi | 3bbf2ff | 2008-01-27 14:12:54 +0000 | [diff] [blame] | 123 | console = (struct lb_console *)lb_new_record(header); |
| 124 | console->tag = LB_TAG_CONSOLE; |
| 125 | console->size = sizeof(*console); |
| 126 | console->type = consoletype; |
| 127 | } |
| 128 | |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 129 | static void lb_console(struct lb_header *header) |
Patrick Georgi | 3bbf2ff | 2008-01-27 14:12:54 +0000 | [diff] [blame] | 130 | { |
Myles Watson | ec0ee64 | 2009-10-19 16:21:30 +0000 | [diff] [blame] | 131 | #if CONFIG_CONSOLE_SERIAL8250 |
Patrick Georgi | 3bbf2ff | 2008-01-27 14:12:54 +0000 | [diff] [blame] | 132 | add_console(header, LB_TAG_CONSOLE_SERIAL8250); |
| 133 | #endif |
Myles Watson | ec0ee64 | 2009-10-19 16:21:30 +0000 | [diff] [blame] | 134 | #if CONFIG_CONSOLE_VGA |
Patrick Georgi | 3bbf2ff | 2008-01-27 14:12:54 +0000 | [diff] [blame] | 135 | add_console(header, LB_TAG_CONSOLE_VGA); |
| 136 | #endif |
Myles Watson | ec0ee64 | 2009-10-19 16:21:30 +0000 | [diff] [blame] | 137 | #if CONFIG_CONSOLE_BTEXT |
Patrick Georgi | 3bbf2ff | 2008-01-27 14:12:54 +0000 | [diff] [blame] | 138 | add_console(header, LB_TAG_CONSOLE_BTEXT); |
| 139 | #endif |
Myles Watson | ec0ee64 | 2009-10-19 16:21:30 +0000 | [diff] [blame] | 140 | #if CONFIG_CONSOLE_LOGBUF |
Patrick Georgi | 3bbf2ff | 2008-01-27 14:12:54 +0000 | [diff] [blame] | 141 | add_console(header, LB_TAG_CONSOLE_LOGBUF); |
| 142 | #endif |
Myles Watson | ec0ee64 | 2009-10-19 16:21:30 +0000 | [diff] [blame] | 143 | #if CONFIG_CONSOLE_SROM |
Patrick Georgi | 3bbf2ff | 2008-01-27 14:12:54 +0000 | [diff] [blame] | 144 | add_console(header, LB_TAG_CONSOLE_SROM); |
| 145 | #endif |
Myles Watson | ec0ee64 | 2009-10-19 16:21:30 +0000 | [diff] [blame] | 146 | #if CONFIG_USBDEBUG_DIRECT |
Patrick Georgi | 3bbf2ff | 2008-01-27 14:12:54 +0000 | [diff] [blame] | 147 | add_console(header, LB_TAG_CONSOLE_EHCI); |
| 148 | #endif |
| 149 | } |
| 150 | |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 151 | struct lb_mainboard *lb_mainboard(struct lb_header *header) |
| 152 | { |
| 153 | struct lb_record *rec; |
| 154 | struct lb_mainboard *mainboard; |
| 155 | rec = lb_new_record(header); |
| 156 | mainboard = (struct lb_mainboard *)rec; |
| 157 | mainboard->tag = LB_TAG_MAINBOARD; |
| 158 | |
| 159 | mainboard->size = (sizeof(*mainboard) + |
| 160 | strlen(mainboard_vendor) + 1 + |
| 161 | strlen(mainboard_part_number) + 1 + |
| 162 | 3) & ~3; |
| 163 | |
| 164 | mainboard->vendor_idx = 0; |
| 165 | mainboard->part_number_idx = strlen(mainboard_vendor) + 1; |
| 166 | |
| 167 | memcpy(mainboard->strings + mainboard->vendor_idx, |
| 168 | mainboard_vendor, strlen(mainboard_vendor) + 1); |
| 169 | memcpy(mainboard->strings + mainboard->part_number_idx, |
| 170 | mainboard_part_number, strlen(mainboard_part_number) + 1); |
| 171 | |
| 172 | return mainboard; |
| 173 | } |
| 174 | |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 175 | static struct cmos_checksum *lb_cmos_checksum(struct lb_header *header) |
Stefan Reinauer | 4bd0de0 | 2005-12-03 22:39:23 +0000 | [diff] [blame] | 176 | { |
| 177 | struct lb_record *rec; |
| 178 | struct cmos_checksum *cmos_checksum; |
| 179 | rec = lb_new_record(header); |
| 180 | cmos_checksum = (struct cmos_checksum *)rec; |
| 181 | cmos_checksum->tag = LB_TAG_OPTION_CHECKSUM; |
| 182 | |
| 183 | cmos_checksum->size = (sizeof(*cmos_checksum)); |
| 184 | |
Stefan Reinauer | 0867062 | 2009-06-30 15:17:49 +0000 | [diff] [blame] | 185 | cmos_checksum->range_start = CONFIG_LB_CKS_RANGE_START * 8; |
| 186 | cmos_checksum->range_end = ( CONFIG_LB_CKS_RANGE_END * 8 ) + 7; |
| 187 | cmos_checksum->location = CONFIG_LB_CKS_LOC * 8; |
Stefan Reinauer | 4bd0de0 | 2005-12-03 22:39:23 +0000 | [diff] [blame] | 188 | cmos_checksum->type = CHECKSUM_PCBIOS; |
| 189 | |
| 190 | return cmos_checksum; |
| 191 | } |
| 192 | |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 193 | static void lb_strings(struct lb_header *header) |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 194 | { |
| 195 | static const struct { |
| 196 | uint32_t tag; |
Stefan Reinauer | 0dff6e3 | 2007-10-23 22:17:45 +0000 | [diff] [blame] | 197 | const char *string; |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 198 | } strings[] = { |
Stefan Reinauer | f8ee180 | 2008-01-18 15:08:58 +0000 | [diff] [blame] | 199 | { LB_TAG_VERSION, coreboot_version, }, |
| 200 | { LB_TAG_EXTRA_VERSION, coreboot_extra_version, }, |
| 201 | { LB_TAG_BUILD, coreboot_build, }, |
| 202 | { LB_TAG_COMPILE_TIME, coreboot_compile_time, }, |
| 203 | { LB_TAG_COMPILE_BY, coreboot_compile_by, }, |
| 204 | { LB_TAG_COMPILE_HOST, coreboot_compile_host, }, |
| 205 | { LB_TAG_COMPILE_DOMAIN, coreboot_compile_domain, }, |
| 206 | { LB_TAG_COMPILER, coreboot_compiler, }, |
| 207 | { LB_TAG_LINKER, coreboot_linker, }, |
| 208 | { LB_TAG_ASSEMBLER, coreboot_assembler, }, |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 209 | }; |
Eric Biederman | 5268557 | 2003-05-19 19:16:21 +0000 | [diff] [blame] | 210 | unsigned int i; |
Carl-Daniel Hailfinger | 2ee6779 | 2008-10-01 12:52:52 +0000 | [diff] [blame] | 211 | for(i = 0; i < ARRAY_SIZE(strings); i++) { |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 212 | struct lb_string *rec; |
| 213 | size_t len; |
| 214 | rec = (struct lb_string *)lb_new_record(header); |
| 215 | len = strlen(strings[i].string); |
| 216 | rec->tag = strings[i].tag; |
| 217 | rec->size = (sizeof(*rec) + len + 1 + 3) & ~3; |
| 218 | memcpy(rec->string, strings[i].string, len+1); |
| 219 | } |
| 220 | |
| 221 | } |
| 222 | |
Myles Watson | 2e67273 | 2009-11-12 16:38:03 +0000 | [diff] [blame^] | 223 | #if CONFIG_WRITE_HIGH_TABLES == 1 |
Stefan Reinauer | b883d4c | 2009-08-27 11:23:06 +0000 | [diff] [blame] | 224 | static struct lb_forward *lb_forward(struct lb_header *header, struct lb_header *next_header) |
Stefan Reinauer | efab4ba | 2009-03-17 14:38:48 +0000 | [diff] [blame] | 225 | { |
| 226 | struct lb_record *rec; |
| 227 | struct lb_forward *forward; |
| 228 | rec = lb_new_record(header); |
| 229 | forward = (struct lb_forward *)rec; |
| 230 | forward->tag = LB_TAG_FORWARD; |
| 231 | forward->size = sizeof(*forward); |
Stefan Reinauer | df77f34 | 2009-04-06 14:00:53 +0000 | [diff] [blame] | 232 | forward->forward = (uint64_t)(unsigned long)next_header; |
Stefan Reinauer | efab4ba | 2009-03-17 14:38:48 +0000 | [diff] [blame] | 233 | return forward; |
| 234 | } |
Myles Watson | 2e67273 | 2009-11-12 16:38:03 +0000 | [diff] [blame^] | 235 | #endif |
Stefan Reinauer | efab4ba | 2009-03-17 14:38:48 +0000 | [diff] [blame] | 236 | |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 237 | void lb_memory_range(struct lb_memory *mem, |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 238 | uint32_t type, uint64_t start, uint64_t size) |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 239 | { |
| 240 | int entries; |
| 241 | entries = (mem->size - sizeof(*mem))/sizeof(mem->map[0]); |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 242 | mem->map[entries].start = pack_lb64(start); |
| 243 | mem->map[entries].size = pack_lb64(size); |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 244 | mem->map[entries].type = type; |
| 245 | mem->size += sizeof(mem->map[0]); |
| 246 | } |
| 247 | |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 248 | static void lb_reserve_table_memory(struct lb_header *head) |
| 249 | { |
| 250 | struct lb_record *last_rec; |
| 251 | struct lb_memory *mem; |
| 252 | uint64_t start; |
| 253 | uint64_t end; |
| 254 | int i, entries; |
| 255 | |
| 256 | last_rec = lb_last_record(head); |
| 257 | mem = get_lb_mem(); |
| 258 | start = (unsigned long)head; |
| 259 | end = (unsigned long)last_rec; |
| 260 | entries = (mem->size - sizeof(*mem))/sizeof(mem->map[0]); |
| 261 | /* Resize the right two memory areas so this table is in |
| 262 | * a reserved area of memory. Everything has been carefully |
| 263 | * setup so that is all we need to do. |
| 264 | */ |
| 265 | for(i = 0; i < entries; i++ ) { |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 266 | uint64_t map_start = unpack_lb64(mem->map[i].start); |
| 267 | uint64_t map_end = map_start + unpack_lb64(mem->map[i].size); |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 268 | /* Does this area need to be expanded? */ |
| 269 | if (map_end == start) { |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 270 | mem->map[i].size = pack_lb64(end - map_start); |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 271 | } |
| 272 | /* Does this area need to be contracted? */ |
| 273 | else if (map_start == start) { |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 274 | mem->map[i].start = pack_lb64(end); |
| 275 | mem->map[i].size = pack_lb64(map_end - end); |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 276 | } |
| 277 | } |
| 278 | } |
| 279 | |
Stefan Reinauer | efab4ba | 2009-03-17 14:38:48 +0000 | [diff] [blame] | 280 | static unsigned long lb_table_fini(struct lb_header *head, int fixup) |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 281 | { |
| 282 | struct lb_record *rec, *first_rec; |
| 283 | rec = lb_last_record(head); |
| 284 | if (head->table_entries) { |
| 285 | head->table_bytes += rec->size; |
| 286 | } |
Stefan Reinauer | efab4ba | 2009-03-17 14:38:48 +0000 | [diff] [blame] | 287 | |
| 288 | if (fixup) |
| 289 | lb_reserve_table_memory(head); |
| 290 | |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 291 | first_rec = lb_first_record(head); |
| 292 | head->table_checksum = compute_ip_checksum(first_rec, head->table_bytes); |
| 293 | head->header_checksum = 0; |
| 294 | head->header_checksum = compute_ip_checksum(head, sizeof(*head)); |
Myles Watson | c4ddbff | 2009-02-09 17:52:54 +0000 | [diff] [blame] | 295 | printk_debug("Wrote coreboot table at: %p - %p checksum %x\n", |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 296 | head, rec, head->table_checksum); |
| 297 | return (unsigned long)rec; |
| 298 | } |
| 299 | |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 300 | static void lb_cleanup_memory_ranges(struct lb_memory *mem) |
| 301 | { |
| 302 | int entries; |
| 303 | int i, j; |
| 304 | entries = (mem->size - sizeof(*mem))/sizeof(mem->map[0]); |
| 305 | |
| 306 | /* Sort the lb memory ranges */ |
| 307 | for(i = 0; i < entries; i++) { |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 308 | uint64_t entry_start = unpack_lb64(mem->map[i].start); |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 309 | for(j = i; j < entries; j++) { |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 310 | uint64_t temp_start = unpack_lb64(mem->map[j].start); |
| 311 | if (temp_start < entry_start) { |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 312 | struct lb_memory_range tmp; |
| 313 | tmp = mem->map[i]; |
| 314 | mem->map[i] = mem->map[j]; |
| 315 | mem->map[j] = tmp; |
| 316 | } |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | /* Merge adjacent entries */ |
| 321 | for(i = 0; (i + 1) < entries; i++) { |
| 322 | uint64_t start, end, nstart, nend; |
| 323 | if (mem->map[i].type != mem->map[i + 1].type) { |
| 324 | continue; |
| 325 | } |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 326 | start = unpack_lb64(mem->map[i].start); |
| 327 | end = start + unpack_lb64(mem->map[i].size); |
| 328 | nstart = unpack_lb64(mem->map[i + 1].start); |
| 329 | nend = nstart + unpack_lb64(mem->map[i + 1].size); |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 330 | if ((start <= nstart) && (end > nstart)) { |
| 331 | if (start > nstart) { |
| 332 | start = nstart; |
| 333 | } |
| 334 | if (end < nend) { |
| 335 | end = nend; |
| 336 | } |
| 337 | /* Record the new region size */ |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 338 | mem->map[i].start = pack_lb64(start); |
| 339 | mem->map[i].size = pack_lb64(end - start); |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 340 | |
| 341 | /* Delete the entry I have merged with */ |
| 342 | memmove(&mem->map[i + 1], &mem->map[i + 2], |
| 343 | ((entries - i - 2) * sizeof(mem->map[0]))); |
| 344 | mem->size -= sizeof(mem->map[0]); |
| 345 | entries -= 1; |
| 346 | /* See if I can merge with the next entry as well */ |
| 347 | i -= 1; |
| 348 | } |
| 349 | } |
| 350 | } |
| 351 | |
| 352 | static void lb_remove_memory_range(struct lb_memory *mem, |
| 353 | uint64_t start, uint64_t size) |
| 354 | { |
| 355 | uint64_t end; |
| 356 | int entries; |
| 357 | int i; |
| 358 | |
| 359 | end = start + size; |
| 360 | entries = (mem->size - sizeof(*mem))/sizeof(mem->map[0]); |
| 361 | |
| 362 | /* Remove a reserved area from the memory map */ |
| 363 | for(i = 0; i < entries; i++) { |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 364 | uint64_t map_start = unpack_lb64(mem->map[i].start); |
| 365 | uint64_t map_end = map_start + unpack_lb64(mem->map[i].size); |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 366 | if ((start <= map_start) && (end >= map_end)) { |
| 367 | /* Remove the completely covered range */ |
| 368 | memmove(&mem->map[i], &mem->map[i + 1], |
| 369 | ((entries - i - 1) * sizeof(mem->map[0]))); |
| 370 | mem->size -= sizeof(mem->map[0]); |
| 371 | entries -= 1; |
| 372 | /* Since the index will disappear revisit what will appear here */ |
| 373 | i -= 1; |
| 374 | } |
| 375 | else if ((start > map_start) && (end < map_end)) { |
| 376 | /* Split the memory range */ |
| 377 | memmove(&mem->map[i + 1], &mem->map[i], |
| 378 | ((entries - i) * sizeof(mem->map[0]))); |
| 379 | mem->size += sizeof(mem->map[0]); |
| 380 | entries += 1; |
| 381 | /* Update the first map entry */ |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 382 | mem->map[i].size = pack_lb64(start - map_start); |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 383 | /* Update the second map entry */ |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 384 | mem->map[i + 1].start = pack_lb64(end); |
| 385 | mem->map[i + 1].size = pack_lb64(map_end - end); |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 386 | /* Don't bother with this map entry again */ |
| 387 | i += 1; |
| 388 | } |
| 389 | else if ((start <= map_start) && (end > map_start)) { |
| 390 | /* Shrink the start of the memory range */ |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 391 | mem->map[i].start = pack_lb64(end); |
| 392 | mem->map[i].size = pack_lb64(map_end - end); |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 393 | } |
| 394 | else if ((start < map_end) && (start > map_start)) { |
| 395 | /* Shrink the end of the memory range */ |
Eric Biederman | ec01aa9 | 2004-12-10 20:50:43 +0000 | [diff] [blame] | 396 | mem->map[i].size = pack_lb64(start - map_start); |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 397 | } |
| 398 | } |
| 399 | } |
| 400 | |
Stefan Reinauer | 045c348 | 2008-12-13 20:51:34 +0000 | [diff] [blame] | 401 | /* This function is used in mainboard specific code, too */ |
| 402 | void lb_add_memory_range(struct lb_memory *mem, |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 403 | uint32_t type, uint64_t start, uint64_t size) |
| 404 | { |
| 405 | lb_remove_memory_range(mem, start, size); |
| 406 | lb_memory_range(mem, type, start, size); |
| 407 | lb_cleanup_memory_ranges(mem); |
| 408 | } |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 409 | |
Stefan Reinauer | f8ee180 | 2008-01-18 15:08:58 +0000 | [diff] [blame] | 410 | /* Routines to extract part so the coreboot table or |
| 411 | * information from the coreboot table after we have written it. |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 412 | * Currently get_lb_mem relies on a global we can change the |
| 413 | * implementaiton. |
| 414 | */ |
| 415 | static struct lb_memory *mem_ranges = 0; |
| 416 | struct lb_memory *get_lb_mem(void) |
| 417 | { |
| 418 | return mem_ranges; |
| 419 | } |
| 420 | |
Eric Biederman | f8a2ddd | 2004-10-30 08:05:41 +0000 | [diff] [blame] | 421 | static void build_lb_mem_range(void *gp, struct device *dev, struct resource *res) |
| 422 | { |
| 423 | struct lb_memory *mem = gp; |
| 424 | lb_memory_range(mem, LB_MEM_RAM, res->base, res->size); |
| 425 | } |
| 426 | |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 427 | static struct lb_memory *build_lb_mem(struct lb_header *head) |
Eric Biederman | b78c197 | 2004-10-14 20:54:17 +0000 | [diff] [blame] | 428 | { |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 429 | struct lb_memory *mem; |
Eric Biederman | b78c197 | 2004-10-14 20:54:17 +0000 | [diff] [blame] | 430 | |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 431 | /* Record where the lb memory ranges will live */ |
| 432 | mem = lb_memory(head); |
| 433 | mem_ranges = mem; |
| 434 | |
| 435 | /* Build the raw table of memory */ |
Eric Biederman | f8a2ddd | 2004-10-30 08:05:41 +0000 | [diff] [blame] | 436 | search_global_resources( |
| 437 | IORESOURCE_MEM | IORESOURCE_CACHEABLE, IORESOURCE_MEM | IORESOURCE_CACHEABLE, |
| 438 | build_lb_mem_range, mem); |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 439 | lb_cleanup_memory_ranges(mem); |
Eric Biederman | b78c197 | 2004-10-14 20:54:17 +0000 | [diff] [blame] | 440 | return mem; |
| 441 | } |
| 442 | |
Myles Watson | b8e2027 | 2009-10-15 13:35:47 +0000 | [diff] [blame] | 443 | #if CONFIG_WRITE_HIGH_TABLES == 1 |
Patrick Georgi | bccaafc | 2009-04-28 12:57:25 +0000 | [diff] [blame] | 444 | extern uint64_t high_tables_base, high_tables_size; |
| 445 | #endif |
| 446 | |
Stefan Reinauer | f8ee180 | 2008-01-18 15:08:58 +0000 | [diff] [blame] | 447 | unsigned long write_coreboot_table( |
Stefan Reinauer | 4f1cb23 | 2006-07-19 15:32:49 +0000 | [diff] [blame] | 448 | unsigned long low_table_start, unsigned long low_table_end, |
| 449 | unsigned long rom_table_start, unsigned long rom_table_end) |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 450 | { |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 451 | struct lb_header *head; |
| 452 | struct lb_memory *mem; |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 453 | |
Myles Watson | b8e2027 | 2009-10-15 13:35:47 +0000 | [diff] [blame] | 454 | #if CONFIG_WRITE_HIGH_TABLES == 1 |
Stefan Reinauer | efab4ba | 2009-03-17 14:38:48 +0000 | [diff] [blame] | 455 | printk_debug("Writing high table forward entry at 0x%08lx\n", |
| 456 | low_table_end); |
| 457 | head = lb_table_init(low_table_end); |
Myles Watson | fa12b67 | 2009-04-30 22:45:41 +0000 | [diff] [blame] | 458 | lb_forward(head, (struct lb_header*)rom_table_end); |
Stefan Reinauer | efab4ba | 2009-03-17 14:38:48 +0000 | [diff] [blame] | 459 | |
Patrick Georgi | bab4f92 | 2009-05-26 19:39:14 +0000 | [diff] [blame] | 460 | low_table_end = (unsigned long) lb_table_fini(head, 0); |
Stefan Reinauer | efab4ba | 2009-03-17 14:38:48 +0000 | [diff] [blame] | 461 | printk_debug("New low_table_end: 0x%08lx\n", low_table_end); |
| 462 | printk_debug("Now going to write high coreboot table at 0x%08lx\n", |
| 463 | rom_table_end); |
| 464 | |
| 465 | head = lb_table_init(rom_table_end); |
| 466 | rom_table_end = (unsigned long)head; |
| 467 | printk_debug("rom_table_end = 0x%08lx\n", rom_table_end); |
| 468 | #else |
Stefan Reinauer | 4f1cb23 | 2006-07-19 15:32:49 +0000 | [diff] [blame] | 469 | if(low_table_end > (0x1000 - sizeof(struct lb_header))) { /* after 4K */ |
| 470 | /* We need to put lbtable on to [0xf0000,0x100000) */ |
| 471 | head = lb_table_init(rom_table_end); |
| 472 | rom_table_end = (unsigned long)head; |
| 473 | } else { |
| 474 | head = lb_table_init(low_table_end); |
| 475 | low_table_end = (unsigned long)head; |
| 476 | } |
Stefan Reinauer | efab4ba | 2009-03-17 14:38:48 +0000 | [diff] [blame] | 477 | #endif |
Yinghai Lu | 47cb7c7 | 2007-04-06 20:27:40 +0000 | [diff] [blame] | 478 | |
Myles Watson | c4ddbff | 2009-02-09 17:52:54 +0000 | [diff] [blame] | 479 | printk_debug("Adjust low_table_end from 0x%08lx to ", low_table_end); |
Yinghai Lu | 47cb7c7 | 2007-04-06 20:27:40 +0000 | [diff] [blame] | 480 | low_table_end += 0xfff; // 4K aligned |
| 481 | low_table_end &= ~0xfff; |
Myles Watson | c4ddbff | 2009-02-09 17:52:54 +0000 | [diff] [blame] | 482 | printk_debug("0x%08lx \n", low_table_end); |
Yinghai Lu | 47cb7c7 | 2007-04-06 20:27:40 +0000 | [diff] [blame] | 483 | |
| 484 | /* The Linux kernel assumes this region is reserved */ |
Myles Watson | c4ddbff | 2009-02-09 17:52:54 +0000 | [diff] [blame] | 485 | printk_debug("Adjust rom_table_end from 0x%08lx to ", rom_table_end); |
Yinghai Lu | 47cb7c7 | 2007-04-06 20:27:40 +0000 | [diff] [blame] | 486 | rom_table_end += 0xffff; // 64K align |
| 487 | rom_table_end &= ~0xffff; |
Myles Watson | c4ddbff | 2009-02-09 17:52:54 +0000 | [diff] [blame] | 488 | printk_debug("0x%08lx \n", rom_table_end); |
Stefan Reinauer | 4f1cb23 | 2006-07-19 15:32:49 +0000 | [diff] [blame] | 489 | |
Stefan Reinauer | 0867062 | 2009-06-30 15:17:49 +0000 | [diff] [blame] | 490 | #if (CONFIG_HAVE_OPTION_TABLE == 1) |
Stefan Reinauer | ba43064 | 2007-04-06 12:14:51 +0000 | [diff] [blame] | 491 | { |
Myles Watson | 2d892f1 | 2009-11-12 13:48:39 +0000 | [diff] [blame] | 492 | struct lb_record *rec_dest = lb_new_record(head); |
| 493 | /* Copy the option config table, it's already a lb_record... */ |
| 494 | memcpy(rec_dest, &option_table, option_table.size); |
Stefan Reinauer | f8ee180 | 2008-01-18 15:08:58 +0000 | [diff] [blame] | 495 | /* Create cmos checksum entry in coreboot table */ |
Stefan Reinauer | 4bd0de0 | 2005-12-03 22:39:23 +0000 | [diff] [blame] | 496 | lb_cmos_checksum(head); |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 497 | } |
Stefan Reinauer | ba43064 | 2007-04-06 12:14:51 +0000 | [diff] [blame] | 498 | #endif |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 499 | /* Record where RAM is located */ |
| 500 | mem = build_lb_mem(head); |
| 501 | |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 502 | /* Record the mptable and the the lb_table (This will be adjusted later) */ |
| 503 | lb_add_memory_range(mem, LB_MEM_TABLE, |
Stefan Reinauer | 4f1cb23 | 2006-07-19 15:32:49 +0000 | [diff] [blame] | 504 | low_table_start, low_table_end - low_table_start); |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 505 | |
Stefan Reinauer | 4f1cb23 | 2006-07-19 15:32:49 +0000 | [diff] [blame] | 506 | /* Record the pirq table, acpi tables, and maybe the mptable */ |
Stefan Reinauer | b657a3c | 2009-07-21 21:38:33 +0000 | [diff] [blame] | 507 | lb_add_memory_range(mem, LB_MEM_TABLE, |
Roman Kononov | 96e3022 | 2008-07-23 23:22:59 +0000 | [diff] [blame] | 508 | rom_table_start, rom_table_end-rom_table_start); |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 509 | |
Myles Watson | b8e2027 | 2009-10-15 13:35:47 +0000 | [diff] [blame] | 510 | #if CONFIG_WRITE_HIGH_TABLES == 1 |
Patrick Georgi | bccaafc | 2009-04-28 12:57:25 +0000 | [diff] [blame] | 511 | printk_debug("Adding high table area\n"); |
Stefan Reinauer | b657a3c | 2009-07-21 21:38:33 +0000 | [diff] [blame] | 512 | // should this be LB_MEM_ACPI? |
Patrick Georgi | bccaafc | 2009-04-28 12:57:25 +0000 | [diff] [blame] | 513 | lb_add_memory_range(mem, LB_MEM_TABLE, |
| 514 | high_tables_base, high_tables_size); |
| 515 | #endif |
| 516 | |
Stefan Reinauer | 0867062 | 2009-06-30 15:17:49 +0000 | [diff] [blame] | 517 | #if (CONFIG_HAVE_MAINBOARD_RESOURCES == 1) |
Stefan Reinauer | 045c348 | 2008-12-13 20:51:34 +0000 | [diff] [blame] | 518 | add_mainboard_resources(mem); |
Michael Xie | 06755e4 | 2008-09-22 13:07:20 +0000 | [diff] [blame] | 519 | #endif |
| 520 | |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 521 | /* Note: |
| 522 | * I assume that there is always memory at immediately after |
Stefan Reinauer | f8ee180 | 2008-01-18 15:08:58 +0000 | [diff] [blame] | 523 | * the low_table_end. This means that after I setup the coreboot table. |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 524 | * I can trivially fixup the reserved memory ranges to hold the correct |
Stefan Reinauer | f8ee180 | 2008-01-18 15:08:58 +0000 | [diff] [blame] | 525 | * size of the coreboot table. |
Eric Biederman | 6e53f50 | 2004-10-27 08:53:57 +0000 | [diff] [blame] | 526 | */ |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 527 | |
Patrick Georgi | 8c2a0c1 | 2008-01-25 18:28:18 +0000 | [diff] [blame] | 528 | /* Record our motherboard */ |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 529 | lb_mainboard(head); |
Patrick Georgi | 8c2a0c1 | 2008-01-25 18:28:18 +0000 | [diff] [blame] | 530 | /* Record the serial port, if present */ |
| 531 | lb_serial(head); |
Patrick Georgi | 3bbf2ff | 2008-01-27 14:12:54 +0000 | [diff] [blame] | 532 | /* Record our console setup */ |
| 533 | lb_console(head); |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 534 | /* Record our various random string information */ |
| 535 | lb_strings(head); |
| 536 | |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 537 | /* Remember where my valid memory ranges are */ |
Stefan Reinauer | efab4ba | 2009-03-17 14:38:48 +0000 | [diff] [blame] | 538 | return lb_table_fini(head, 1); |
Stefan Reinauer | 4f1cb23 | 2006-07-19 15:32:49 +0000 | [diff] [blame] | 539 | |
Eric Biederman | 8ca8d76 | 2003-04-22 19:02:15 +0000 | [diff] [blame] | 540 | } |