arch/x86/kernel/es7000_32.c

   1 /*
   2  * Written by: Garry Forsgren, Unisys Corporation
   3  *             Natalie Protasevich, Unisys Corporation
   4  * This file contains the code to configure and interface
   5  * with Unisys ES7000 series hardware system manager.
   6  *
   7  * Copyright (c) 2003 Unisys Corporation.  All Rights Reserved.
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of version 2 of the GNU General Public License as
  11  * published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it would be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write the Free Software Foundation, Inc., 59
  19  * Temple Place - Suite 330, Boston MA 02111-1307, USA.
  20  *
  21  * Contact information: Unisys Corporation, Township Line & Union Meeting
  22  * Roads-A, Unisys Way, Blue Bell, Pennsylvania, 19424, or:
  23  *
  24  * http://www.unisys.com
  25  */
  26
  27 #include <linux/notifier.h>
  28 #include <linux/spinlock.h>
  29 #include <linux/cpumask.h>
  30 #include <linux/threads.h>
  31 #include <linux/kernel.h>
  32 #include <linux/module.h>
  33 #include <linux/reboot.h>
  34 #include <linux/string.h>
  35 #include <linux/types.h>
  36 #include <linux/errno.h>
  37 #include <linux/acpi.h>
  38 #include <linux/init.h>
  39 #include <linux/smp.h>
  40
  41 #include <asm/apicdef.h>
  42 #include <asm/atomic.h>
  43 #include <asm/fixmap.h>
  44 #include <asm/mpspec.h>
  45 #include <asm/setup.h>
  46 #include <asm/apic.h>
  47 #include <asm/ipi.h>
  48 #include <asm/nmi.h>
  49 #include <asm/smp.h>
  50 #include <asm/io.h>
  51
  52 /*
  53  * ES7000 chipsets
  54  */
  55
  56 #define NON_UNISYS                      0
  57 #define ES7000_CLASSIC                  1
  58 #define ES7000_ZORRO                    2
  59
  60 #define MIP_REG                         1
  61 #define MIP_PSAI_REG                    4
  62
  63 #define MIP_BUSY                        1
  64 #define MIP_SPIN                        0xf0000
  65 #define MIP_VALID                       0x0100000000000000ULL
  66
  67 #define MIP_PORT(val)                   ((val >> 32) & 0xffff)
  68
  69 #define MIP_RD_LO(val)                  (val & 0xffffffff)
  70
  71 struct mip_reg_info {
  72         unsigned long long              mip_info;
  73         unsigned long long              delivery_info;
  74         unsigned long long              host_reg;
  75         unsigned long long              mip_reg;
  76 };
  77
  78 struct part_info {
  79         unsigned char                   type;
  80         unsigned char                   length;
  81         unsigned char                   part_id;
  82         unsigned char                   apic_mode;
  83         unsigned long                   snum;
  84         char                            ptype[16];
  85         char                            sname[64];
  86         char                            pname[64];
  87 };
  88
  89 struct psai {
  90         unsigned long long              entry_type;
  91         unsigned long long              addr;
  92         unsigned long long              bep_addr;
  93 };
  94
  95 struct es7000_mem_info {
  96         unsigned char                   type;
  97         unsigned char                   length;
  98         unsigned char                   resv[6];
  99         unsigned long long              start;
 100         unsigned long long              size;
 101 };
 102
 103 struct es7000_oem_table {
 104         unsigned long long              hdr;
 105         struct mip_reg_info             mip;
 106         struct part_info                pif;
 107         struct es7000_mem_info          shm;
 108         struct psai                     psai;
 109 };
 110
 111 #ifdef CONFIG_ACPI
 112
 113 struct oem_table {
 114         struct acpi_table_header        Header;
 115         u32                             OEMTableAddr;
 116         u32                             OEMTableSize;
 117 };
 118
 119 extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
 120 extern void unmap_unisys_acpi_oem_table(unsigned long oem_addr);
 121 #endif
 122
 123 struct mip_reg {
 124         unsigned long long              off_0x00;
 125         unsigned long long              off_0x08;
 126         unsigned long long              off_0x10;
 127         unsigned long long              off_0x18;
 128         unsigned long long              off_0x20;
 129         unsigned long long              off_0x28;
 130         unsigned long long              off_0x30;
 131         unsigned long long              off_0x38;
 132 };
 133
 134 #define MIP_SW_APIC                     0x1020b
 135 #define MIP_FUNC(VALUE)                 (VALUE & 0xff)
 136
 137 #define APIC_DFR_VALUE_CLUSTER          (APIC_DFR_CLUSTER)
 138 #define INT_DELIVERY_MODE_CLUSTER       (dest_LowestPrio)
 139 #define INT_DEST_MODE_CLUSTER           (1) /* logical delivery broadcast to all procs */
 140
 141 #define APIC_DFR_VALUE                  (APIC_DFR_FLAT)
 142
 143 extern void es7000_enable_apic_mode(void);
 144 extern int parse_unisys_oem (char *oemptr);
 145 extern int find_unisys_acpi_oem_table(unsigned long *oem_addr);
 146 extern void unmap_unisys_acpi_oem_table(unsigned long oem_addr);
 147 extern void setup_unisys(void);
 148
 149 #define apicid_cluster(apicid)          (apicid & 0xF0)
 150
 151 /*
 152  * ES7000 Globals
 153  */
 154
 155 static volatile unsigned long           *psai = NULL;
 156 static struct mip_reg                   *mip_reg;
 157 static struct mip_reg                   *host_reg;
 158 static int                              mip_port;
 159 static unsigned long                    mip_addr, host_addr;
 160
 161 int                                     es7000_plat;
 162
 163 /*
 164  * GSI override for ES7000 platforms.
 165  */
 166
 167 static unsigned int                     base;
 168
 169 static int
 170 es7000_rename_gsi(int ioapic, int gsi)
 171 {
 172         if (es7000_plat == ES7000_ZORRO)
 173                 return gsi;
 174
 175         if (!base) {
 176                 int i;
 177                 for (i = 0; i < nr_ioapics; i++)
 178                         base += nr_ioapic_registers[i];
 179         }
 180
 181         if (!ioapic && (gsi < 16))
 182                 gsi += base;
 183
 184         return gsi;
 185 }
 186
 187 static int wakeup_secondary_cpu_via_mip(int cpu, unsigned long eip)
 188 {
 189         unsigned long vect = 0, psaival = 0;
 190
 191         if (psai == NULL)
 192                 return -1;
 193
 194         vect = ((unsigned long)__pa(eip)/0x1000) << 16;
 195         psaival = (0x1000000 | vect | cpu);
 196
 197         while (*psai & 0x1000000)
 198                 ;
 199
 200         *psai = psaival;
 201
 202         return 0;
 203 }
 204
 205 static int __init es7000_update_genapic(void)
 206 {
 207         apic->wakeup_cpu = wakeup_secondary_cpu_via_mip;
 208
 209         /* MPENTIUMIII */
 210         if (boot_cpu_data.x86 == 6 &&
 211             (boot_cpu_data.x86_model >= 7 || boot_cpu_data.x86_model <= 11)) {
 212                 es7000_update_genapic_to_cluster();
 213                 apic->wait_for_init_deassert = NULL;
 214                 apic->wakeup_cpu = wakeup_secondary_cpu_via_mip;
 215         }
 216
 217         return 0;
 218 }
 219
 220 void __init setup_unisys(void)
 221 {
 222         /*
 223          * Determine the generation of the ES7000 currently running.
 224          *
 225          * es7000_plat = 1 if the machine is a 5xx ES7000 box
 226          * es7000_plat = 2 if the machine is a x86_64 ES7000 box
 227          *
 228          */
 229         if (!(boot_cpu_data.x86 <= 15 && boot_cpu_data.x86_model <= 2))
 230                 es7000_plat = ES7000_ZORRO;
 231         else
 232                 es7000_plat = ES7000_CLASSIC;
 233         ioapic_renumber_irq = es7000_rename_gsi;
 234
 235         x86_quirks->update_genapic = es7000_update_genapic;
 236 }
 237
 238 /*
 239  * Parse the OEM Table
 240  */
 241
 242 int __init parse_unisys_oem (char *oemptr)
 243 {
 244         int                     i;
 245         int                     success = 0;
 246         unsigned char           type, size;
 247         unsigned long           val;
 248         char                    *tp = NULL;
 249         struct psai             *psaip = NULL;
 250         struct mip_reg_info     *mi;
 251         struct mip_reg          *host, *mip;
 252
 253         tp = oemptr;
 254
 255         tp += 8;
 256
 257         for (i=0; i <= 6; i++) {
 258                 type = *tp++;
 259                 size = *tp++;
 260                 tp -= 2;
 261                 switch (type) {
 262                 case MIP_REG:
 263                         mi = (struct mip_reg_info *)tp;
 264                         val = MIP_RD_LO(mi->host_reg);
 265                         host_addr = val;
 266                         host = (struct mip_reg *)val;
 267                         host_reg = __va(host);
 268                         val = MIP_RD_LO(mi->mip_reg);
 269                         mip_port = MIP_PORT(mi->mip_info);
 270                         mip_addr = val;
 271                         mip = (struct mip_reg *)val;
 272                         mip_reg = __va(mip);
 273                         pr_debug("es7000_mipcfg: host_reg = 0x%lx \n",
 274                                  (unsigned long)host_reg);
 275                         pr_debug("es7000_mipcfg: mip_reg = 0x%lx \n",
 276                                  (unsigned long)mip_reg);
 277                         success++;
 278                         break;
 279                 case MIP_PSAI_REG:
 280                         psaip = (struct psai *)tp;
 281                         if (tp != NULL) {
 282                                 if (psaip->addr)
 283                                         psai = __va(psaip->addr);
 284                                 else
 285                                         psai = NULL;
 286                                 success++;
 287                         }
 288                         break;
 289                 default:
 290                         break;
 291                 }
 292                 tp += size;
 293         }
 294
 295         if (success < 2) {
 296                 es7000_plat = NON_UNISYS;
 297         } else
 298                 setup_unisys();
 299
 300         return es7000_plat;
 301 }
 302
 303 #ifdef CONFIG_ACPI
 304
 305 static unsigned long                    oem_addrX;
 306 static unsigned long                    oem_size;
 307
 308 int __init find_unisys_acpi_oem_table(unsigned long *oem_addr)
 309 {
 310         struct acpi_table_header *header = NULL;
 311         int i = 0;
 312         acpi_size tbl_size;
 313
 314         while (ACPI_SUCCESS(acpi_get_table_with_size("OEM1", i++, &header, &tbl_size))) {
 315                 if (!memcmp((char *) &header->oem_id, "UNISYS", 6)) {
 316                         struct oem_table *t = (struct oem_table *)header;
 317
 318                         oem_addrX = t->OEMTableAddr;
 319                         oem_size = t->OEMTableSize;
 320                         early_acpi_os_unmap_memory(header, tbl_size);
 321
 322                         *oem_addr = (unsigned long)__acpi_map_table(oem_addrX,
 323                                                                     oem_size);
 324                         return 0;
 325                 }
 326                 early_acpi_os_unmap_memory(header, tbl_size);
 327         }
 328         return -1;
 329 }
 330
 331 void __init unmap_unisys_acpi_oem_table(unsigned long oem_addr)
 332 {
 333         if (!oem_addr)
 334                 return;
 335
 336         __acpi_unmap_table((char *)oem_addr, oem_size);
 337 }
 338 #endif
 339
 340 static void es7000_spin(int n)
 341 {
 342         int i = 0;
 343
 344         while (i++ < n)
 345                 rep_nop();
 346 }
 347
 348 static int __init
 349 es7000_mip_write(struct mip_reg *mip_reg)
 350 {
 351         int status = 0;
 352         int spin;
 353
 354         spin = MIP_SPIN;
 355         while ((host_reg->off_0x38 & MIP_VALID) != 0) {
 356                 if (--spin <= 0) {
 357                         printk("es7000_mip_write: Timeout waiting for Host Valid Flag");
 358                         return -1;
 359                 }
 360                 es7000_spin(MIP_SPIN);
 361         }
 362
 363         memcpy(host_reg, mip_reg, sizeof(struct mip_reg));
 364         outb(1, mip_port);
 365
 366         spin = MIP_SPIN;
 367
 368         while ((mip_reg->off_0x38 & MIP_VALID) == 0) {
 369                 if (--spin <= 0) {
 370                         printk("es7000_mip_write: Timeout waiting for MIP Valid Flag");
 371                         return -1;
 372                 }
 373                 es7000_spin(MIP_SPIN);
 374         }
 375
 376         status = (mip_reg->off_0x00 & 0xffff0000000000ULL) >> 48;
 377         mip_reg->off_0x38 &= ~MIP_VALID;
 378
 379         return status;
 380 }
 381
 382 void __init es7000_enable_apic_mode(void)
 383 {
 384         struct mip_reg es7000_mip_reg;
 385         int mip_status;
 386
 387         if (!es7000_plat)
 388                 return;
 389
 390         printk("ES7000: Enabling APIC mode.\n");
 391         memset(&es7000_mip_reg, 0, sizeof(struct mip_reg));
 392         es7000_mip_reg.off_0x00 = MIP_SW_APIC;
 393         es7000_mip_reg.off_0x38 = MIP_VALID;
 394
 395         while ((mip_status = es7000_mip_write(&es7000_mip_reg)) != 0) {
 396                 printk("es7000_enable_apic_mode: command failed, status = %x\n",
 397                         mip_status);
 398         }
 399 }
 400
 401 static void es7000_vector_allocation_domain(int cpu, cpumask_t *retmask)
 402 {
 403         /* Careful. Some cpus do not strictly honor the set of cpus
 404          * specified in the interrupt destination when using lowest
 405          * priority interrupt delivery mode.
 406          *
 407          * In particular there was a hyperthreading cpu observed to
 408          * deliver interrupts to the wrong hyperthread when only one
 409          * hyperthread was specified in the interrupt desitination.
 410          */
 411         *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
 412 }
 413
 414
 415 static void es7000_wait_for_init_deassert(atomic_t *deassert)
 416 {
 417 #ifndef CONFIG_ES7000_CLUSTERED_APIC
 418         while (!atomic_read(deassert))
 419                 cpu_relax();
 420 #endif
 421         return;
 422 }
 423
 424 static unsigned int es7000_get_apic_id(unsigned long x)
 425 {
 426         return (x >> 24) & 0xFF;
 427 }
 428
 429 #ifdef CONFIG_ACPI
 430 static int es7000_check_dsdt(void)
 431 {
 432         struct acpi_table_header header;
 433
 434         if (ACPI_SUCCESS(acpi_get_table_header(ACPI_SIG_DSDT, 0, &header)) &&
 435             !strncmp(header.oem_id, "UNISYS", 6))
 436                 return 1;
 437         return 0;
 438 }
 439 #endif
 440
 441 static void es7000_send_IPI_mask(const struct cpumask *mask, int vector)
 442 {
 443         default_send_IPI_mask_sequence_phys(mask, vector);
 444 }
 445
 446 static void es7000_send_IPI_allbutself(int vector)
 447 {
 448         default_send_IPI_mask_allbutself_phys(cpu_online_mask, vector);
 449 }
 450
 451 static void es7000_send_IPI_all(int vector)
 452 {
 453         es7000_send_IPI_mask(cpu_online_mask, vector);
 454 }
 455
 456 static int es7000_apic_id_registered(void)
 457 {
 458                 return 1;
 459 }
 460
 461 static const cpumask_t *target_cpus_cluster(void)
 462 {
 463         return &CPU_MASK_ALL;
 464 }
 465
 466 static const cpumask_t *es7000_target_cpus(void)
 467 {
 468         return &cpumask_of_cpu(smp_processor_id());
 469 }
 470
 471 static unsigned long
 472 es7000_check_apicid_used(physid_mask_t bitmap, int apicid)
 473 {
 474         return 0;
 475 }
 476 static unsigned long es7000_check_apicid_present(int bit)
 477 {
 478         return physid_isset(bit, phys_cpu_present_map);
 479 }
 480
 481 static unsigned long calculate_ldr(int cpu)
 482 {
 483         unsigned long id = per_cpu(x86_bios_cpu_apicid, cpu);
 484
 485         return SET_APIC_LOGICAL_ID(id);
 486 }
 487
 488 /*
 489  * Set up the logical destination ID.
 490  *
 491  * Intel recommends to set DFR, LdR and TPR before enabling
 492  * an APIC.  See e.g. "AP-388 82489DX User's Manual" (Intel
 493  * document number 292116).  So here it goes...
 494  */
 495 static void es7000_init_apic_ldr_cluster(void)
 496 {
 497         unsigned long val;
 498         int cpu = smp_processor_id();
 499
 500         apic_write(APIC_DFR, APIC_DFR_VALUE_CLUSTER);
 501         val = calculate_ldr(cpu);
 502         apic_write(APIC_LDR, val);
 503 }
 504
 505 static void es7000_init_apic_ldr(void)
 506 {
 507         unsigned long val;
 508         int cpu = smp_processor_id();
 509
 510         apic_write(APIC_DFR, APIC_DFR_VALUE);
 511         val = calculate_ldr(cpu);
 512         apic_write(APIC_LDR, val);
 513 }
 514
 515 static void es7000_setup_apic_routing(void)
 516 {
 517         int apic = per_cpu(x86_bios_cpu_apicid, smp_processor_id());
 518         printk("Enabling APIC mode:  %s. Using %d I/O APICs, target cpus %lx\n",
 519                 (apic_version[apic] == 0x14) ?
 520                         "Physical Cluster" : "Logical Cluster",
 521                         nr_ioapics, cpus_addr(*es7000_target_cpus())[0]);
 522 }
 523
 524 static int es7000_apicid_to_node(int logical_apicid)
 525 {
 526         return 0;
 527 }
 528
 529
 530 static int es7000_cpu_present_to_apicid(int mps_cpu)
 531 {
 532         if (!mps_cpu)
 533                 return boot_cpu_physical_apicid;
 534         else if (mps_cpu < nr_cpu_ids)
 535                 return per_cpu(x86_bios_cpu_apicid, mps_cpu);
 536         else
 537                 return BAD_APICID;
 538 }
 539
 540 static physid_mask_t es7000_apicid_to_cpu_present(int phys_apicid)
 541 {
 542         static int id = 0;
 543         physid_mask_t mask;
 544
 545         mask = physid_mask_of_physid(id);
 546         ++id;
 547
 548         return mask;
 549 }
 550
 551 /* Mapping from cpu number to logical apicid */
 552 static int es7000_cpu_to_logical_apicid(int cpu)
 553 {
 554 #ifdef CONFIG_SMP
 555         if (cpu >= nr_cpu_ids)
 556                 return BAD_APICID;
 557         return cpu_2_logical_apicid[cpu];
 558 #else
 559         return logical_smp_processor_id();
 560 #endif
 561 }
 562
 563 static physid_mask_t es7000_ioapic_phys_id_map(physid_mask_t phys_map)
 564 {
 565         /* For clustered we don't have a good way to do this yet - hack */
 566         return physids_promote(0xff);
 567 }
 568
 569 static int es7000_check_phys_apicid_present(int cpu_physical_apicid)
 570 {
 571         boot_cpu_physical_apicid = read_apic_id();
 572         return 1;
 573 }
 574
 575 static unsigned int
 576 es7000_cpu_mask_to_apicid_cluster(const struct cpumask *cpumask)
 577 {
 578         int cpus_found = 0;
 579         int num_bits_set;
 580         int apicid;
 581         int cpu;
 582
 583         num_bits_set = cpumask_weight(cpumask);
 584         /* Return id to all */
 585         if (num_bits_set == nr_cpu_ids)
 586                 return 0xFF;
 587         /*
 588          * The cpus in the mask must all be on the apic cluster.  If are not
 589          * on the same apicid cluster return default value of target_cpus():
 590          */
 591         cpu = cpumask_first(cpumask);
 592         apicid = es7000_cpu_to_logical_apicid(cpu);
 593
 594         while (cpus_found < num_bits_set) {
 595                 if (cpumask_test_cpu(cpu, cpumask)) {
 596                         int new_apicid = es7000_cpu_to_logical_apicid(cpu);
 597
 598                         if (apicid_cluster(apicid) !=
 599                                         apicid_cluster(new_apicid)) {
 600                                 printk ("%s: Not a valid mask!\n", __func__);
 601
 602                                 return 0xFF;
 603                         }
 604                         apicid = new_apicid;
 605                         cpus_found++;
 606                 }
 607                 cpu++;
 608         }
 609         return apicid;
 610 }
 611
 612 static unsigned int es7000_cpu_mask_to_apicid(const cpumask_t *cpumask)
 613 {
 614         int cpus_found = 0;
 615         int num_bits_set;
 616         int apicid;
 617         int cpu;
 618
 619         num_bits_set = cpus_weight(*cpumask);
 620         /* Return id to all */
 621         if (num_bits_set == nr_cpu_ids)
 622                 return es7000_cpu_to_logical_apicid(0);
 623         /*
 624          * The cpus in the mask must all be on the apic cluster.  If are not
 625          * on the same apicid cluster return default value of target_cpus():
 626          */
 627         cpu = first_cpu(*cpumask);
 628         apicid = es7000_cpu_to_logical_apicid(cpu);
 629         while (cpus_found < num_bits_set) {
 630                 if (cpu_isset(cpu, *cpumask)) {
 631                         int new_apicid = es7000_cpu_to_logical_apicid(cpu);
 632
 633                         if (apicid_cluster(apicid) !=
 634                                         apicid_cluster(new_apicid)) {
 635                                 printk ("%s: Not a valid mask!\n", __func__);
 636
 637                                 return es7000_cpu_to_logical_apicid(0);
 638                         }
 639                         apicid = new_apicid;
 640                         cpus_found++;
 641                 }
 642                 cpu++;
 643         }
 644         return apicid;
 645 }
 646
 647 static unsigned int
 648 es7000_cpu_mask_to_apicid_and(const struct cpumask *inmask,
 649                               const struct cpumask *andmask)
 650 {
 651         int apicid = es7000_cpu_to_logical_apicid(0);
 652         cpumask_var_t cpumask;
 653
 654         if (!alloc_cpumask_var(&cpumask, GFP_ATOMIC))
 655                 return apicid;
 656
 657         cpumask_and(cpumask, inmask, andmask);
 658         cpumask_and(cpumask, cpumask, cpu_online_mask);
 659         apicid = es7000_cpu_mask_to_apicid(cpumask);
 660
 661         free_cpumask_var(cpumask);
 662
 663         return apicid;
 664 }
 665
 666 static int es7000_phys_pkg_id(int cpuid_apic, int index_msb)
 667 {
 668         return cpuid_apic >> index_msb;
 669 }
 670
 671 void __init es7000_update_genapic_to_cluster(void)
 672 {
 673         apic->target_cpus = target_cpus_cluster;
 674         apic->irq_delivery_mode = INT_DELIVERY_MODE_CLUSTER;
 675         apic->irq_dest_mode = INT_DEST_MODE_CLUSTER;
 676
 677         apic->init_apic_ldr = es7000_init_apic_ldr_cluster;
 678
 679         apic->cpu_mask_to_apicid = es7000_cpu_mask_to_apicid_cluster;
 680 }
 681
 682 static int probe_es7000(void)
 683 {
 684         /* probed later in mptable/ACPI hooks */
 685         return 0;
 686 }
 687
 688 static __init int
 689 es7000_mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
 690 {
 691         if (mpc->oemptr) {
 692                 struct mpc_oemtable *oem_table =
 693                         (struct mpc_oemtable *)mpc->oemptr;
 694
 695                 if (!strncmp(oem, "UNISYS", 6))
 696                         return parse_unisys_oem((char *)oem_table);
 697         }
 698         return 0;
 699 }
 700
 701 #ifdef CONFIG_ACPI
 702 /* Hook from generic ACPI tables.c */
 703 static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 704 {
 705         unsigned long oem_addr = 0;
 706         int check_dsdt;
 707         int ret = 0;
 708
 709         /* check dsdt at first to avoid clear fix_map for oem_addr */
 710         check_dsdt = es7000_check_dsdt();
 711
 712         if (!find_unisys_acpi_oem_table(&oem_addr)) {
 713                 if (check_dsdt)
 714                         ret = parse_unisys_oem((char *)oem_addr);
 715                 else {
 716                         setup_unisys();
 717                         ret = 1;
 718                 }
 719                 /*
 720                  * we need to unmap it
 721                  */
 722                 unmap_unisys_acpi_oem_table(oem_addr);
 723         }
 724         return ret;
 725 }
 726 #else
 727 static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 728 {
 729         return 0;
 730 }
 731 #endif
 732
 733
 734 struct genapic apic_es7000 = {
 735
 736         .name                           = "es7000",
 737         .probe                          = probe_es7000,
 738         .acpi_madt_oem_check            = es7000_acpi_madt_oem_check,
 739         .apic_id_registered             = es7000_apic_id_registered,
 740
 741         .irq_delivery_mode              = dest_Fixed,
 742         /* phys delivery to target CPUs: */
 743         .irq_dest_mode                  = 0,
 744
 745         .target_cpus                    = es7000_target_cpus,
 746         .disable_esr                    = 1,
 747         .dest_logical                   = 0,
 748         .check_apicid_used              = es7000_check_apicid_used,
 749         .check_apicid_present           = es7000_check_apicid_present,
 750
 751         .vector_allocation_domain       = es7000_vector_allocation_domain,
 752         .init_apic_ldr                  = es7000_init_apic_ldr,
 753
 754         .ioapic_phys_id_map             = es7000_ioapic_phys_id_map,
 755         .setup_apic_routing             = es7000_setup_apic_routing,
 756         .multi_timer_check              = NULL,
 757         .apicid_to_node                 = es7000_apicid_to_node,
 758         .cpu_to_logical_apicid          = es7000_cpu_to_logical_apicid,
 759         .cpu_present_to_apicid          = es7000_cpu_present_to_apicid,
 760         .apicid_to_cpu_present          = es7000_apicid_to_cpu_present,
 761         .setup_portio_remap             = NULL,
 762         .check_phys_apicid_present      = es7000_check_phys_apicid_present,
 763         .enable_apic_mode               = es7000_enable_apic_mode,
 764         .phys_pkg_id                    = es7000_phys_pkg_id,
 765         .mps_oem_check                  = es7000_mps_oem_check,
 766
 767         .get_apic_id                    = es7000_get_apic_id,
 768         .set_apic_id                    = NULL,
 769         .apic_id_mask                   = 0xFF << 24,
 770
 771         .cpu_mask_to_apicid             = es7000_cpu_mask_to_apicid,
 772         .cpu_mask_to_apicid_and         = es7000_cpu_mask_to_apicid_and,
 773
 774         .send_IPI_mask                  = es7000_send_IPI_mask,
 775         .send_IPI_mask_allbutself       = NULL,
 776         .send_IPI_allbutself            = es7000_send_IPI_allbutself,
 777         .send_IPI_all                   = es7000_send_IPI_all,
 778         .send_IPI_self                  = default_send_IPI_self,
 779
 780         .wakeup_cpu                     = NULL,
 781
 782         .trampoline_phys_low            = 0x467,
 783         .trampoline_phys_high           = 0x469,
 784
 785         .wait_for_init_deassert         = es7000_wait_for_init_deassert,
 786
 787         /* Nothing to do for most platforms, since cleared by the INIT cycle: */
 788         .smp_callin_clear_local_apic    = NULL,
 789         .store_NMI_vector               = NULL,
 790         .inquire_remote_apic            = default_inquire_remote_apic,
 791
 792         .read                           = native_apic_mem_read,
 793         .write                          = native_apic_mem_write,
 794         .icr_read                       = native_apic_icr_read,
 795         .icr_write                      = native_apic_icr_write,
 796         .wait_icr_idle                  = native_apic_wait_icr_idle,
 797         .safe_wait_icr_idle             = native_safe_apic_wait_icr_idle,
 798 };