| 1 | /* |
| 2 | * Written by: Garry Forsgren, Unisys Corporation |
| 3 | * Natalie Protasevich, Unisys Corporation |
| 4 | * |
| 5 | * This file contains the code to configure and interface |
| 6 | * with Unisys ES7000 series hardware system manager. |
| 7 | * |
| 8 | * Copyright (c) 2003 Unisys Corporation. |
| 9 | * Copyright (C) 2009, Red Hat, Inc., Ingo Molnar |
| 10 | * |
| 11 | * All Rights Reserved. |
| 12 | * |
| 13 | * This program is free software; you can redistribute it and/or modify it |
| 14 | * under the terms of version 2 of the GNU General Public License as |
| 15 | * published by the Free Software Foundation. |
| 16 | * |
| 17 | * This program is distributed in the hope that it would be useful, but |
| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License along |
| 22 | * with this program; if not, write the Free Software Foundation, Inc., 59 |
| 23 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. |
| 24 | * |
| 25 | * Contact information: Unisys Corporation, Township Line & Union Meeting |
| 26 | * Roads-A, Unisys Way, Blue Bell, Pennsylvania, 19424, or: |
| 27 | * |
| 28 | * http://www.unisys.com |
| 29 | */ |
| 30 | |
| 31 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 32 | |
| 33 | #include <linux/notifier.h> |
| 34 | #include <linux/spinlock.h> |
| 35 | #include <linux/cpumask.h> |
| 36 | #include <linux/threads.h> |
| 37 | #include <linux/kernel.h> |
| 38 | #include <linux/module.h> |
| 39 | #include <linux/reboot.h> |
| 40 | #include <linux/string.h> |
| 41 | #include <linux/types.h> |
| 42 | #include <linux/errno.h> |
| 43 | #include <linux/acpi.h> |
| 44 | #include <linux/init.h> |
| 45 | #include <linux/gfp.h> |
| 46 | #include <linux/nmi.h> |
| 47 | #include <linux/smp.h> |
| 48 | #include <linux/io.h> |
| 49 | |
| 50 | #include <asm/apicdef.h> |
| 51 | #include <asm/atomic.h> |
| 52 | #include <asm/fixmap.h> |
| 53 | #include <asm/mpspec.h> |
| 54 | #include <asm/setup.h> |
| 55 | #include <asm/apic.h> |
| 56 | #include <asm/ipi.h> |
| 57 | |
| 58 | /* |
| 59 | * ES7000 chipsets |
| 60 | */ |
| 61 | |
| 62 | #define NON_UNISYS 0 |
| 63 | #define ES7000_CLASSIC 1 |
| 64 | #define ES7000_ZORRO 2 |
| 65 | |
| 66 | #define MIP_REG 1 |
| 67 | #define MIP_PSAI_REG 4 |
| 68 | |
| 69 | #define MIP_BUSY 1 |
| 70 | #define MIP_SPIN 0xf0000 |
| 71 | #define MIP_VALID 0x0100000000000000ULL |
| 72 | #define MIP_SW_APIC 0x1020b |
| 73 | |
| 74 | #define MIP_PORT(val) ((val >> 32) & 0xffff) |
| 75 | |
| 76 | #define MIP_RD_LO(val) (val & 0xffffffff) |
| 77 | |
| 78 | struct mip_reg { |
| 79 | unsigned long long off_0x00; |
| 80 | unsigned long long off_0x08; |
| 81 | unsigned long long off_0x10; |
| 82 | unsigned long long off_0x18; |
| 83 | unsigned long long off_0x20; |
| 84 | unsigned long long off_0x28; |
| 85 | unsigned long long off_0x30; |
| 86 | unsigned long long off_0x38; |
| 87 | }; |
| 88 | |
| 89 | struct mip_reg_info { |
| 90 | unsigned long long mip_info; |
| 91 | unsigned long long delivery_info; |
| 92 | unsigned long long host_reg; |
| 93 | unsigned long long mip_reg; |
| 94 | }; |
| 95 | |
| 96 | struct psai { |
| 97 | unsigned long long entry_type; |
| 98 | unsigned long long addr; |
| 99 | unsigned long long bep_addr; |
| 100 | }; |
| 101 | |
| 102 | #ifdef CONFIG_ACPI |
| 103 | |
| 104 | struct es7000_oem_table { |
| 105 | struct acpi_table_header Header; |
| 106 | u32 OEMTableAddr; |
| 107 | u32 OEMTableSize; |
| 108 | }; |
| 109 | |
| 110 | static unsigned long oem_addrX; |
| 111 | static unsigned long oem_size; |
| 112 | |
| 113 | #endif |
| 114 | |
| 115 | /* |
| 116 | * ES7000 Globals |
| 117 | */ |
| 118 | |
| 119 | static volatile unsigned long *psai; |
| 120 | static struct mip_reg *mip_reg; |
| 121 | static struct mip_reg *host_reg; |
| 122 | static int mip_port; |
| 123 | static unsigned long mip_addr; |
| 124 | static unsigned long host_addr; |
| 125 | |
| 126 | int es7000_plat; |
| 127 | |
| 128 | /* |
| 129 | * GSI override for ES7000 platforms. |
| 130 | */ |
| 131 | |
| 132 | |
| 133 | static int __cpuinit wakeup_secondary_cpu_via_mip(int cpu, unsigned long eip) |
| 134 | { |
| 135 | unsigned long vect = 0, psaival = 0; |
| 136 | |
| 137 | if (psai == NULL) |
| 138 | return -1; |
| 139 | |
| 140 | vect = ((unsigned long)__pa(eip)/0x1000) << 16; |
| 141 | psaival = (0x1000000 | vect | cpu); |
| 142 | |
| 143 | while (*psai & 0x1000000) |
| 144 | ; |
| 145 | |
| 146 | *psai = psaival; |
| 147 | |
| 148 | return 0; |
| 149 | } |
| 150 | |
| 151 | static int es7000_apic_is_cluster(void) |
| 152 | { |
| 153 | /* MPENTIUMIII */ |
| 154 | if (boot_cpu_data.x86 == 6 && |
| 155 | (boot_cpu_data.x86_model >= 7 && boot_cpu_data.x86_model <= 11)) |
| 156 | return 1; |
| 157 | |
| 158 | return 0; |
| 159 | } |
| 160 | |
| 161 | static void setup_unisys(void) |
| 162 | { |
| 163 | /* |
| 164 | * Determine the generation of the ES7000 currently running. |
| 165 | * |
| 166 | * es7000_plat = 1 if the machine is a 5xx ES7000 box |
| 167 | * es7000_plat = 2 if the machine is a x86_64 ES7000 box |
| 168 | * |
| 169 | */ |
| 170 | if (!(boot_cpu_data.x86 <= 15 && boot_cpu_data.x86_model <= 2)) |
| 171 | es7000_plat = ES7000_ZORRO; |
| 172 | else |
| 173 | es7000_plat = ES7000_CLASSIC; |
| 174 | } |
| 175 | |
| 176 | /* |
| 177 | * Parse the OEM Table: |
| 178 | */ |
| 179 | static int parse_unisys_oem(char *oemptr) |
| 180 | { |
| 181 | int i; |
| 182 | int success = 0; |
| 183 | unsigned char type, size; |
| 184 | unsigned long val; |
| 185 | char *tp = NULL; |
| 186 | struct psai *psaip = NULL; |
| 187 | struct mip_reg_info *mi; |
| 188 | struct mip_reg *host, *mip; |
| 189 | |
| 190 | tp = oemptr; |
| 191 | |
| 192 | tp += 8; |
| 193 | |
| 194 | for (i = 0; i <= 6; i++) { |
| 195 | type = *tp++; |
| 196 | size = *tp++; |
| 197 | tp -= 2; |
| 198 | switch (type) { |
| 199 | case MIP_REG: |
| 200 | mi = (struct mip_reg_info *)tp; |
| 201 | val = MIP_RD_LO(mi->host_reg); |
| 202 | host_addr = val; |
| 203 | host = (struct mip_reg *)val; |
| 204 | host_reg = __va(host); |
| 205 | val = MIP_RD_LO(mi->mip_reg); |
| 206 | mip_port = MIP_PORT(mi->mip_info); |
| 207 | mip_addr = val; |
| 208 | mip = (struct mip_reg *)val; |
| 209 | mip_reg = __va(mip); |
| 210 | pr_debug("host_reg = 0x%lx\n", |
| 211 | (unsigned long)host_reg); |
| 212 | pr_debug("mip_reg = 0x%lx\n", |
| 213 | (unsigned long)mip_reg); |
| 214 | success++; |
| 215 | break; |
| 216 | case MIP_PSAI_REG: |
| 217 | psaip = (struct psai *)tp; |
| 218 | if (tp != NULL) { |
| 219 | if (psaip->addr) |
| 220 | psai = __va(psaip->addr); |
| 221 | else |
| 222 | psai = NULL; |
| 223 | success++; |
| 224 | } |
| 225 | break; |
| 226 | default: |
| 227 | break; |
| 228 | } |
| 229 | tp += size; |
| 230 | } |
| 231 | |
| 232 | if (success < 2) |
| 233 | es7000_plat = NON_UNISYS; |
| 234 | else |
| 235 | setup_unisys(); |
| 236 | |
| 237 | return es7000_plat; |
| 238 | } |
| 239 | |
| 240 | #ifdef CONFIG_ACPI |
| 241 | static int __init find_unisys_acpi_oem_table(unsigned long *oem_addr) |
| 242 | { |
| 243 | struct acpi_table_header *header = NULL; |
| 244 | struct es7000_oem_table *table; |
| 245 | acpi_size tbl_size; |
| 246 | acpi_status ret; |
| 247 | int i = 0; |
| 248 | |
| 249 | for (;;) { |
| 250 | ret = acpi_get_table_with_size("OEM1", i++, &header, &tbl_size); |
| 251 | if (!ACPI_SUCCESS(ret)) |
| 252 | return -1; |
| 253 | |
| 254 | if (!memcmp((char *) &header->oem_id, "UNISYS", 6)) |
| 255 | break; |
| 256 | |
| 257 | early_acpi_os_unmap_memory(header, tbl_size); |
| 258 | } |
| 259 | |
| 260 | table = (void *)header; |
| 261 | |
| 262 | oem_addrX = table->OEMTableAddr; |
| 263 | oem_size = table->OEMTableSize; |
| 264 | |
| 265 | early_acpi_os_unmap_memory(header, tbl_size); |
| 266 | |
| 267 | *oem_addr = (unsigned long)__acpi_map_table(oem_addrX, oem_size); |
| 268 | |
| 269 | return 0; |
| 270 | } |
| 271 | |
| 272 | static void __init unmap_unisys_acpi_oem_table(unsigned long oem_addr) |
| 273 | { |
| 274 | if (!oem_addr) |
| 275 | return; |
| 276 | |
| 277 | __acpi_unmap_table((char *)oem_addr, oem_size); |
| 278 | } |
| 279 | |
| 280 | static int es7000_check_dsdt(void) |
| 281 | { |
| 282 | struct acpi_table_header header; |
| 283 | |
| 284 | if (ACPI_SUCCESS(acpi_get_table_header(ACPI_SIG_DSDT, 0, &header)) && |
| 285 | !strncmp(header.oem_id, "UNISYS", 6)) |
| 286 | return 1; |
| 287 | return 0; |
| 288 | } |
| 289 | |
| 290 | static int es7000_acpi_ret; |
| 291 | |
| 292 | /* Hook from generic ACPI tables.c */ |
| 293 | static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id) |
| 294 | { |
| 295 | unsigned long oem_addr = 0; |
| 296 | int check_dsdt; |
| 297 | int ret = 0; |
| 298 | |
| 299 | /* check dsdt at first to avoid clear fix_map for oem_addr */ |
| 300 | check_dsdt = es7000_check_dsdt(); |
| 301 | |
| 302 | if (!find_unisys_acpi_oem_table(&oem_addr)) { |
| 303 | if (check_dsdt) { |
| 304 | ret = parse_unisys_oem((char *)oem_addr); |
| 305 | } else { |
| 306 | setup_unisys(); |
| 307 | ret = 1; |
| 308 | } |
| 309 | /* |
| 310 | * we need to unmap it |
| 311 | */ |
| 312 | unmap_unisys_acpi_oem_table(oem_addr); |
| 313 | } |
| 314 | |
| 315 | es7000_acpi_ret = ret; |
| 316 | |
| 317 | return ret && !es7000_apic_is_cluster(); |
| 318 | } |
| 319 | |
| 320 | static int es7000_acpi_madt_oem_check_cluster(char *oem_id, char *oem_table_id) |
| 321 | { |
| 322 | int ret = es7000_acpi_ret; |
| 323 | |
| 324 | return ret && es7000_apic_is_cluster(); |
| 325 | } |
| 326 | |
| 327 | #else /* !CONFIG_ACPI: */ |
| 328 | static int es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id) |
| 329 | { |
| 330 | return 0; |
| 331 | } |
| 332 | |
| 333 | static int es7000_acpi_madt_oem_check_cluster(char *oem_id, char *oem_table_id) |
| 334 | { |
| 335 | return 0; |
| 336 | } |
| 337 | #endif /* !CONFIG_ACPI */ |
| 338 | |
| 339 | static void es7000_spin(int n) |
| 340 | { |
| 341 | int i = 0; |
| 342 | |
| 343 | while (i++ < n) |
| 344 | rep_nop(); |
| 345 | } |
| 346 | |
| 347 | static int es7000_mip_write(struct mip_reg *mip_reg) |
| 348 | { |
| 349 | int status = 0; |
| 350 | int spin; |
| 351 | |
| 352 | spin = MIP_SPIN; |
| 353 | while ((host_reg->off_0x38 & MIP_VALID) != 0) { |
| 354 | if (--spin <= 0) { |
| 355 | WARN(1, "Timeout waiting for Host Valid Flag\n"); |
| 356 | return -1; |
| 357 | } |
| 358 | es7000_spin(MIP_SPIN); |
| 359 | } |
| 360 | |
| 361 | memcpy(host_reg, mip_reg, sizeof(struct mip_reg)); |
| 362 | outb(1, mip_port); |
| 363 | |
| 364 | spin = MIP_SPIN; |
| 365 | |
| 366 | while ((mip_reg->off_0x38 & MIP_VALID) == 0) { |
| 367 | if (--spin <= 0) { |
| 368 | WARN(1, "Timeout waiting for MIP Valid Flag\n"); |
| 369 | return -1; |
| 370 | } |
| 371 | es7000_spin(MIP_SPIN); |
| 372 | } |
| 373 | |
| 374 | status = (mip_reg->off_0x00 & 0xffff0000000000ULL) >> 48; |
| 375 | mip_reg->off_0x38 &= ~MIP_VALID; |
| 376 | |
| 377 | return status; |
| 378 | } |
| 379 | |
| 380 | static void es7000_enable_apic_mode(void) |
| 381 | { |
| 382 | struct mip_reg es7000_mip_reg; |
| 383 | int mip_status; |
| 384 | |
| 385 | if (!es7000_plat) |
| 386 | return; |
| 387 | |
| 388 | pr_info("Enabling APIC mode.\n"); |
| 389 | memset(&es7000_mip_reg, 0, sizeof(struct mip_reg)); |
| 390 | es7000_mip_reg.off_0x00 = MIP_SW_APIC; |
| 391 | es7000_mip_reg.off_0x38 = MIP_VALID; |
| 392 | |
| 393 | while ((mip_status = es7000_mip_write(&es7000_mip_reg)) != 0) |
| 394 | WARN(1, "Command failed, status = %x\n", mip_status); |
| 395 | } |
| 396 | |
| 397 | static void es7000_vector_allocation_domain(int cpu, struct cpumask *retmask) |
| 398 | { |
| 399 | /* Careful. Some cpus do not strictly honor the set of cpus |
| 400 | * specified in the interrupt destination when using lowest |
| 401 | * priority interrupt delivery mode. |
| 402 | * |
| 403 | * In particular there was a hyperthreading cpu observed to |
| 404 | * deliver interrupts to the wrong hyperthread when only one |
| 405 | * hyperthread was specified in the interrupt desitination. |
| 406 | */ |
| 407 | cpumask_clear(retmask); |
| 408 | cpumask_bits(retmask)[0] = APIC_ALL_CPUS; |
| 409 | } |
| 410 | |
| 411 | |
| 412 | static void es7000_wait_for_init_deassert(atomic_t *deassert) |
| 413 | { |
| 414 | while (!atomic_read(deassert)) |
| 415 | cpu_relax(); |
| 416 | } |
| 417 | |
| 418 | static unsigned int es7000_get_apic_id(unsigned long x) |
| 419 | { |
| 420 | return (x >> 24) & 0xFF; |
| 421 | } |
| 422 | |
| 423 | static void es7000_send_IPI_mask(const struct cpumask *mask, int vector) |
| 424 | { |
| 425 | default_send_IPI_mask_sequence_phys(mask, vector); |
| 426 | } |
| 427 | |
| 428 | static void es7000_send_IPI_allbutself(int vector) |
| 429 | { |
| 430 | default_send_IPI_mask_allbutself_phys(cpu_online_mask, vector); |
| 431 | } |
| 432 | |
| 433 | static void es7000_send_IPI_all(int vector) |
| 434 | { |
| 435 | es7000_send_IPI_mask(cpu_online_mask, vector); |
| 436 | } |
| 437 | |
| 438 | static int es7000_apic_id_registered(void) |
| 439 | { |
| 440 | return 1; |
| 441 | } |
| 442 | |
| 443 | static const struct cpumask *target_cpus_cluster(void) |
| 444 | { |
| 445 | return cpu_all_mask; |
| 446 | } |
| 447 | |
| 448 | static const struct cpumask *es7000_target_cpus(void) |
| 449 | { |
| 450 | return cpumask_of(smp_processor_id()); |
| 451 | } |
| 452 | |
| 453 | static unsigned long es7000_check_apicid_used(physid_mask_t *map, int apicid) |
| 454 | { |
| 455 | return 0; |
| 456 | } |
| 457 | |
| 458 | static unsigned long es7000_check_apicid_present(int bit) |
| 459 | { |
| 460 | return physid_isset(bit, phys_cpu_present_map); |
| 461 | } |
| 462 | |
| 463 | static unsigned long calculate_ldr(int cpu) |
| 464 | { |
| 465 | unsigned long id = per_cpu(x86_bios_cpu_apicid, cpu); |
| 466 | |
| 467 | return SET_APIC_LOGICAL_ID(id); |
| 468 | } |
| 469 | |
| 470 | /* |
| 471 | * Set up the logical destination ID. |
| 472 | * |
| 473 | * Intel recommends to set DFR, LdR and TPR before enabling |
| 474 | * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel |
| 475 | * document number 292116). So here it goes... |
| 476 | */ |
| 477 | static void es7000_init_apic_ldr_cluster(void) |
| 478 | { |
| 479 | unsigned long val; |
| 480 | int cpu = smp_processor_id(); |
| 481 | |
| 482 | apic_write(APIC_DFR, APIC_DFR_CLUSTER); |
| 483 | val = calculate_ldr(cpu); |
| 484 | apic_write(APIC_LDR, val); |
| 485 | } |
| 486 | |
| 487 | static void es7000_init_apic_ldr(void) |
| 488 | { |
| 489 | unsigned long val; |
| 490 | int cpu = smp_processor_id(); |
| 491 | |
| 492 | apic_write(APIC_DFR, APIC_DFR_FLAT); |
| 493 | val = calculate_ldr(cpu); |
| 494 | apic_write(APIC_LDR, val); |
| 495 | } |
| 496 | |
| 497 | static void es7000_setup_apic_routing(void) |
| 498 | { |
| 499 | int apic = per_cpu(x86_bios_cpu_apicid, smp_processor_id()); |
| 500 | |
| 501 | pr_info("Enabling APIC mode: %s. Using %d I/O APICs, target cpus %lx\n", |
| 502 | (apic_version[apic] == 0x14) ? |
| 503 | "Physical Cluster" : "Logical Cluster", |
| 504 | nr_ioapics, cpumask_bits(es7000_target_cpus())[0]); |
| 505 | } |
| 506 | |
| 507 | static int es7000_apicid_to_node(int logical_apicid) |
| 508 | { |
| 509 | return 0; |
| 510 | } |
| 511 | |
| 512 | |
| 513 | static int es7000_cpu_present_to_apicid(int mps_cpu) |
| 514 | { |
| 515 | if (!mps_cpu) |
| 516 | return boot_cpu_physical_apicid; |
| 517 | else if (mps_cpu < nr_cpu_ids) |
| 518 | return per_cpu(x86_bios_cpu_apicid, mps_cpu); |
| 519 | else |
| 520 | return BAD_APICID; |
| 521 | } |
| 522 | |
| 523 | static int cpu_id; |
| 524 | |
| 525 | static void es7000_apicid_to_cpu_present(int phys_apicid, physid_mask_t *retmap) |
| 526 | { |
| 527 | physid_set_mask_of_physid(cpu_id, retmap); |
| 528 | ++cpu_id; |
| 529 | } |
| 530 | |
| 531 | /* Mapping from cpu number to logical apicid */ |
| 532 | static int es7000_cpu_to_logical_apicid(int cpu) |
| 533 | { |
| 534 | #ifdef CONFIG_SMP |
| 535 | if (cpu >= nr_cpu_ids) |
| 536 | return BAD_APICID; |
| 537 | return cpu_2_logical_apicid[cpu]; |
| 538 | #else |
| 539 | return logical_smp_processor_id(); |
| 540 | #endif |
| 541 | } |
| 542 | |
| 543 | static void es7000_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap) |
| 544 | { |
| 545 | /* For clustered we don't have a good way to do this yet - hack */ |
| 546 | physids_promote(0xFFL, retmap); |
| 547 | } |
| 548 | |
| 549 | static int es7000_check_phys_apicid_present(int cpu_physical_apicid) |
| 550 | { |
| 551 | boot_cpu_physical_apicid = read_apic_id(); |
| 552 | return 1; |
| 553 | } |
| 554 | |
| 555 | static unsigned int es7000_cpu_mask_to_apicid(const struct cpumask *cpumask) |
| 556 | { |
| 557 | unsigned int round = 0; |
| 558 | int cpu, uninitialized_var(apicid); |
| 559 | |
| 560 | /* |
| 561 | * The cpus in the mask must all be on the apic cluster. |
| 562 | */ |
| 563 | for_each_cpu(cpu, cpumask) { |
| 564 | int new_apicid = es7000_cpu_to_logical_apicid(cpu); |
| 565 | |
| 566 | if (round && APIC_CLUSTER(apicid) != APIC_CLUSTER(new_apicid)) { |
| 567 | WARN(1, "Not a valid mask!"); |
| 568 | |
| 569 | return BAD_APICID; |
| 570 | } |
| 571 | apicid = new_apicid; |
| 572 | round++; |
| 573 | } |
| 574 | return apicid; |
| 575 | } |
| 576 | |
| 577 | static unsigned int |
| 578 | es7000_cpu_mask_to_apicid_and(const struct cpumask *inmask, |
| 579 | const struct cpumask *andmask) |
| 580 | { |
| 581 | int apicid = es7000_cpu_to_logical_apicid(0); |
| 582 | cpumask_var_t cpumask; |
| 583 | |
| 584 | if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC)) |
| 585 | return apicid; |
| 586 | |
| 587 | cpumask_and(cpumask, inmask, andmask); |
| 588 | cpumask_and(cpumask, cpumask, cpu_online_mask); |
| 589 | apicid = es7000_cpu_mask_to_apicid(cpumask); |
| 590 | |
| 591 | free_cpumask_var(cpumask); |
| 592 | |
| 593 | return apicid; |
| 594 | } |
| 595 | |
| 596 | static int es7000_phys_pkg_id(int cpuid_apic, int index_msb) |
| 597 | { |
| 598 | return cpuid_apic >> index_msb; |
| 599 | } |
| 600 | |
| 601 | static int probe_es7000(void) |
| 602 | { |
| 603 | /* probed later in mptable/ACPI hooks */ |
| 604 | return 0; |
| 605 | } |
| 606 | |
| 607 | static int es7000_mps_ret; |
| 608 | static int es7000_mps_oem_check(struct mpc_table *mpc, char *oem, |
| 609 | char *productid) |
| 610 | { |
| 611 | int ret = 0; |
| 612 | |
| 613 | if (mpc->oemptr) { |
| 614 | struct mpc_oemtable *oem_table = |
| 615 | (struct mpc_oemtable *)mpc->oemptr; |
| 616 | |
| 617 | if (!strncmp(oem, "UNISYS", 6)) |
| 618 | ret = parse_unisys_oem((char *)oem_table); |
| 619 | } |
| 620 | |
| 621 | es7000_mps_ret = ret; |
| 622 | |
| 623 | return ret && !es7000_apic_is_cluster(); |
| 624 | } |
| 625 | |
| 626 | static int es7000_mps_oem_check_cluster(struct mpc_table *mpc, char *oem, |
| 627 | char *productid) |
| 628 | { |
| 629 | int ret = es7000_mps_ret; |
| 630 | |
| 631 | return ret && es7000_apic_is_cluster(); |
| 632 | } |
| 633 | |
| 634 | /* We've been warned by a false positive warning.Use __refdata to keep calm. */ |
| 635 | struct apic __refdata apic_es7000_cluster = { |
| 636 | |
| 637 | .name = "es7000", |
| 638 | .probe = probe_es7000, |
| 639 | .acpi_madt_oem_check = es7000_acpi_madt_oem_check_cluster, |
| 640 | .apic_id_registered = es7000_apic_id_registered, |
| 641 | |
| 642 | .irq_delivery_mode = dest_LowestPrio, |
| 643 | /* logical delivery broadcast to all procs: */ |
| 644 | .irq_dest_mode = 1, |
| 645 | |
| 646 | .target_cpus = target_cpus_cluster, |
| 647 | .disable_esr = 1, |
| 648 | .dest_logical = 0, |
| 649 | .check_apicid_used = es7000_check_apicid_used, |
| 650 | .check_apicid_present = es7000_check_apicid_present, |
| 651 | |
| 652 | .vector_allocation_domain = es7000_vector_allocation_domain, |
| 653 | .init_apic_ldr = es7000_init_apic_ldr_cluster, |
| 654 | |
| 655 | .ioapic_phys_id_map = es7000_ioapic_phys_id_map, |
| 656 | .setup_apic_routing = es7000_setup_apic_routing, |
| 657 | .multi_timer_check = NULL, |
| 658 | .apicid_to_node = es7000_apicid_to_node, |
| 659 | .cpu_to_logical_apicid = es7000_cpu_to_logical_apicid, |
| 660 | .cpu_present_to_apicid = es7000_cpu_present_to_apicid, |
| 661 | .apicid_to_cpu_present = es7000_apicid_to_cpu_present, |
| 662 | .setup_portio_remap = NULL, |
| 663 | .check_phys_apicid_present = es7000_check_phys_apicid_present, |
| 664 | .enable_apic_mode = es7000_enable_apic_mode, |
| 665 | .phys_pkg_id = es7000_phys_pkg_id, |
| 666 | .mps_oem_check = es7000_mps_oem_check_cluster, |
| 667 | |
| 668 | .get_apic_id = es7000_get_apic_id, |
| 669 | .set_apic_id = NULL, |
| 670 | .apic_id_mask = 0xFF << 24, |
| 671 | |
| 672 | .cpu_mask_to_apicid = es7000_cpu_mask_to_apicid, |
| 673 | .cpu_mask_to_apicid_and = es7000_cpu_mask_to_apicid_and, |
| 674 | |
| 675 | .send_IPI_mask = es7000_send_IPI_mask, |
| 676 | .send_IPI_mask_allbutself = NULL, |
| 677 | .send_IPI_allbutself = es7000_send_IPI_allbutself, |
| 678 | .send_IPI_all = es7000_send_IPI_all, |
| 679 | .send_IPI_self = default_send_IPI_self, |
| 680 | |
| 681 | .wakeup_secondary_cpu = wakeup_secondary_cpu_via_mip, |
| 682 | |
| 683 | .trampoline_phys_low = 0x467, |
| 684 | .trampoline_phys_high = 0x469, |
| 685 | |
| 686 | .wait_for_init_deassert = NULL, |
| 687 | |
| 688 | /* Nothing to do for most platforms, since cleared by the INIT cycle: */ |
| 689 | .smp_callin_clear_local_apic = NULL, |
| 690 | .inquire_remote_apic = default_inquire_remote_apic, |
| 691 | |
| 692 | .read = native_apic_mem_read, |
| 693 | .write = native_apic_mem_write, |
| 694 | .icr_read = native_apic_icr_read, |
| 695 | .icr_write = native_apic_icr_write, |
| 696 | .wait_icr_idle = native_apic_wait_icr_idle, |
| 697 | .safe_wait_icr_idle = native_safe_apic_wait_icr_idle, |
| 698 | }; |
| 699 | |
| 700 | struct apic __refdata apic_es7000 = { |
| 701 | |
| 702 | .name = "es7000", |
| 703 | .probe = probe_es7000, |
| 704 | .acpi_madt_oem_check = es7000_acpi_madt_oem_check, |
| 705 | .apic_id_registered = es7000_apic_id_registered, |
| 706 | |
| 707 | .irq_delivery_mode = dest_Fixed, |
| 708 | /* phys delivery to target CPUs: */ |
| 709 | .irq_dest_mode = 0, |
| 710 | |
| 711 | .target_cpus = es7000_target_cpus, |
| 712 | .disable_esr = 1, |
| 713 | .dest_logical = 0, |
| 714 | .check_apicid_used = es7000_check_apicid_used, |
| 715 | .check_apicid_present = es7000_check_apicid_present, |
| 716 | |
| 717 | .vector_allocation_domain = es7000_vector_allocation_domain, |
| 718 | .init_apic_ldr = es7000_init_apic_ldr, |
| 719 | |
| 720 | .ioapic_phys_id_map = es7000_ioapic_phys_id_map, |
| 721 | .setup_apic_routing = es7000_setup_apic_routing, |
| 722 | .multi_timer_check = NULL, |
| 723 | .apicid_to_node = es7000_apicid_to_node, |
| 724 | .cpu_to_logical_apicid = es7000_cpu_to_logical_apicid, |
| 725 | .cpu_present_to_apicid = es7000_cpu_present_to_apicid, |
| 726 | .apicid_to_cpu_present = es7000_apicid_to_cpu_present, |
| 727 | .setup_portio_remap = NULL, |
| 728 | .check_phys_apicid_present = es7000_check_phys_apicid_present, |
| 729 | .enable_apic_mode = es7000_enable_apic_mode, |
| 730 | .phys_pkg_id = es7000_phys_pkg_id, |
| 731 | .mps_oem_check = es7000_mps_oem_check, |
| 732 | |
| 733 | .get_apic_id = es7000_get_apic_id, |
| 734 | .set_apic_id = NULL, |
| 735 | .apic_id_mask = 0xFF << 24, |
| 736 | |
| 737 | .cpu_mask_to_apicid = es7000_cpu_mask_to_apicid, |
| 738 | .cpu_mask_to_apicid_and = es7000_cpu_mask_to_apicid_and, |
| 739 | |
| 740 | .send_IPI_mask = es7000_send_IPI_mask, |
| 741 | .send_IPI_mask_allbutself = NULL, |
| 742 | .send_IPI_allbutself = es7000_send_IPI_allbutself, |
| 743 | .send_IPI_all = es7000_send_IPI_all, |
| 744 | .send_IPI_self = default_send_IPI_self, |
| 745 | |
| 746 | .trampoline_phys_low = 0x467, |
| 747 | .trampoline_phys_high = 0x469, |
| 748 | |
| 749 | .wait_for_init_deassert = es7000_wait_for_init_deassert, |
| 750 | |
| 751 | /* Nothing to do for most platforms, since cleared by the INIT cycle: */ |
| 752 | .smp_callin_clear_local_apic = NULL, |
| 753 | .inquire_remote_apic = default_inquire_remote_apic, |
| 754 | |
| 755 | .read = native_apic_mem_read, |
| 756 | .write = native_apic_mem_write, |
| 757 | .icr_read = native_apic_icr_read, |
| 758 | .icr_write = native_apic_icr_write, |
| 759 | .wait_icr_idle = native_apic_wait_icr_idle, |
| 760 | .safe_wait_icr_idle = native_safe_apic_wait_icr_idle, |
| 761 | }; |