arch/powerpc/platforms/pseries/setup.c

   1 /*
   2  *  64-bit pSeries and RS/6000 setup code.
   3  *
   4  *  Copyright (C) 1995  Linus Torvalds
   5  *  Adapted from 'alpha' version by Gary Thomas
   6  *  Modified by Cort Dougan (cort@cs.nmt.edu)
   7  *  Modified by PPC64 Team, IBM Corp
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation; either version
  12  * 2 of the License, or (at your option) any later version.
  13  */
  14
  15 /*
  16  * bootup setup stuff..
  17  */
  18
  19 #include <linux/cpu.h>
  20 #include <linux/errno.h>
  21 #include <linux/sched.h>
  22 #include <linux/kernel.h>
  23 #include <linux/mm.h>
  24 #include <linux/stddef.h>
  25 #include <linux/unistd.h>
  26 #include <linux/user.h>
  27 #include <linux/tty.h>
  28 #include <linux/major.h>
  29 #include <linux/interrupt.h>
  30 #include <linux/reboot.h>
  31 #include <linux/init.h>
  32 #include <linux/ioport.h>
  33 #include <linux/console.h>
  34 #include <linux/pci.h>
  35 #include <linux/utsname.h>
  36 #include <linux/adb.h>
  37 #include <linux/export.h>
  38 #include <linux/delay.h>
  39 #include <linux/irq.h>
  40 #include <linux/seq_file.h>
  41 #include <linux/root_dev.h>
  42 #include <linux/cpuidle.h>
  43
  44 #include <asm/mmu.h>
  45 #include <asm/processor.h>
  46 #include <asm/io.h>
  47 #include <asm/pgtable.h>
  48 #include <asm/prom.h>
  49 #include <asm/rtas.h>
  50 #include <asm/pci-bridge.h>
  51 #include <asm/iommu.h>
  52 #include <asm/dma.h>
  53 #include <asm/machdep.h>
  54 #include <asm/irq.h>
  55 #include <asm/time.h>
  56 #include <asm/nvram.h>
  57 #include <asm/pmc.h>
  58 #include <asm/mpic.h>
  59 #include <asm/xics.h>
  60 #include <asm/ppc-pci.h>
  61 #include <asm/i8259.h>
  62 #include <asm/udbg.h>
  63 #include <asm/smp.h>
  64 #include <asm/firmware.h>
  65 #include <asm/eeh.h>
  66 #include <asm/pSeries_reconfig.h>
  67
  68 #include "plpar_wrappers.h"
  69 #include "pseries.h"
  70
  71 int CMO_PrPSP = -1;
  72 int CMO_SecPSP = -1;
  73 unsigned long CMO_PageSize = (ASM_CONST(1) << IOMMU_PAGE_SHIFT);
  74 EXPORT_SYMBOL(CMO_PageSize);
  75
  76 int fwnmi_active;  /* TRUE if an FWNMI handler is present */
  77
  78 static struct device_node *pSeries_mpic_node;
  79
  80 static void pSeries_show_cpuinfo(struct seq_file *m)
  81 {
  82         struct device_node *root;
  83         const char *model = "";
  84
  85         root = of_find_node_by_path("/");
  86         if (root)
  87                 model = of_get_property(root, "model", NULL);
  88         seq_printf(m, "machine\t\t: CHRP %s\n", model);
  89         of_node_put(root);
  90 }
  91
  92 /* Initialize firmware assisted non-maskable interrupts if
  93  * the firmware supports this feature.
  94  */
  95 static void __init fwnmi_init(void)
  96 {
  97         unsigned long system_reset_addr, machine_check_addr;
  98
  99         int ibm_nmi_register = rtas_token("ibm,nmi-register");
 100         if (ibm_nmi_register == RTAS_UNKNOWN_SERVICE)
 101                 return;
 102
 103         /* If the kernel's not linked at zero we point the firmware at low
 104          * addresses anyway, and use a trampoline to get to the real code. */
 105         system_reset_addr  = __pa(system_reset_fwnmi) - PHYSICAL_START;
 106         machine_check_addr = __pa(machine_check_fwnmi) - PHYSICAL_START;
 107
 108         if (0 == rtas_call(ibm_nmi_register, 2, 1, NULL, system_reset_addr,
 109                                 machine_check_addr))
 110                 fwnmi_active = 1;
 111 }
 112
 113 static void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc)
 114 {
 115         struct irq_chip *chip = irq_desc_get_chip(desc);
 116         unsigned int cascade_irq = i8259_irq();
 117
 118         if (cascade_irq != NO_IRQ)
 119                 generic_handle_irq(cascade_irq);
 120
 121         chip->irq_eoi(&desc->irq_data);
 122 }
 123
 124 static void __init pseries_setup_i8259_cascade(void)
 125 {
 126         struct device_node *np, *old, *found = NULL;
 127         unsigned int cascade;
 128         const u32 *addrp;
 129         unsigned long intack = 0;
 130         int naddr;
 131
 132         for_each_node_by_type(np, "interrupt-controller") {
 133                 if (of_device_is_compatible(np, "chrp,iic")) {
 134                         found = np;
 135                         break;
 136                 }
 137         }
 138
 139         if (found == NULL) {
 140                 printk(KERN_DEBUG "pic: no ISA interrupt controller\n");
 141                 return;
 142         }
 143
 144         cascade = irq_of_parse_and_map(found, 0);
 145         if (cascade == NO_IRQ) {
 146                 printk(KERN_ERR "pic: failed to map cascade interrupt");
 147                 return;
 148         }
 149         pr_debug("pic: cascade mapped to irq %d\n", cascade);
 150
 151         for (old = of_node_get(found); old != NULL ; old = np) {
 152                 np = of_get_parent(old);
 153                 of_node_put(old);
 154                 if (np == NULL)
 155                         break;
 156                 if (strcmp(np->name, "pci") != 0)
 157                         continue;
 158                 addrp = of_get_property(np, "8259-interrupt-acknowledge", NULL);
 159                 if (addrp == NULL)
 160                         continue;
 161                 naddr = of_n_addr_cells(np);
 162                 intack = addrp[naddr-1];
 163                 if (naddr > 1)
 164                         intack |= ((unsigned long)addrp[naddr-2]) << 32;
 165         }
 166         if (intack)
 167                 printk(KERN_DEBUG "pic: PCI 8259 intack at 0x%016lx\n", intack);
 168         i8259_init(found, intack);
 169         of_node_put(found);
 170         irq_set_chained_handler(cascade, pseries_8259_cascade);
 171 }
 172
 173 static void __init pseries_mpic_init_IRQ(void)
 174 {
 175         struct device_node *np;
 176         const unsigned int *opprop;
 177         unsigned long openpic_addr = 0;
 178         int naddr, n, i, opplen;
 179         struct mpic *mpic;
 180
 181         np = of_find_node_by_path("/");
 182         naddr = of_n_addr_cells(np);
 183         opprop = of_get_property(np, "platform-open-pic", &opplen);
 184         if (opprop != 0) {
 185                 openpic_addr = of_read_number(opprop, naddr);
 186                 printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
 187         }
 188         of_node_put(np);
 189
 190         BUG_ON(openpic_addr == 0);
 191
 192         /* Setup the openpic driver */
 193         mpic = mpic_alloc(pSeries_mpic_node, openpic_addr, 0,
 194                           16, 250, /* isu size, irq count */
 195                           " MPIC     ");
 196         BUG_ON(mpic == NULL);
 197
 198         /* Add ISUs */
 199         opplen /= sizeof(u32);
 200         for (n = 0, i = naddr; i < opplen; i += naddr, n++) {
 201                 unsigned long isuaddr = of_read_number(opprop + i, naddr);
 202                 mpic_assign_isu(mpic, n, isuaddr);
 203         }
 204
 205         /* Setup top-level get_irq */
 206         ppc_md.get_irq = mpic_get_irq;
 207
 208         /* All ISUs are setup, complete initialization */
 209         mpic_init(mpic);
 210
 211         /* Look for cascade */
 212         pseries_setup_i8259_cascade();
 213 }
 214
 215 static void __init pseries_xics_init_IRQ(void)
 216 {
 217         xics_init();
 218         pseries_setup_i8259_cascade();
 219 }
 220
 221 static void pseries_lpar_enable_pmcs(void)
 222 {
 223         unsigned long set, reset;
 224
 225         set = 1UL << 63;
 226         reset = 0;
 227         plpar_hcall_norets(H_PERFMON, set, reset);
 228 }
 229
 230 static void __init pseries_discover_pic(void)
 231 {
 232         struct device_node *np;
 233         const char *typep;
 234
 235         for (np = NULL; (np = of_find_node_by_name(np,
 236                                                    "interrupt-controller"));) {
 237                 typep = of_get_property(np, "compatible", NULL);
 238                 if (strstr(typep, "open-pic")) {
 239                         pSeries_mpic_node = of_node_get(np);
 240                         ppc_md.init_IRQ       = pseries_mpic_init_IRQ;
 241                         setup_kexec_cpu_down_mpic();
 242                         smp_init_pseries_mpic();
 243                         return;
 244                 } else if (strstr(typep, "ppc-xicp")) {
 245                         ppc_md.init_IRQ       = pseries_xics_init_IRQ;
 246                         setup_kexec_cpu_down_xics();
 247                         smp_init_pseries_xics();
 248                         return;
 249                 }
 250         }
 251         printk(KERN_ERR "pSeries_discover_pic: failed to recognize"
 252                " interrupt-controller\n");
 253 }
 254
 255 static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
 256 {
 257         struct device_node *np = node;
 258         struct pci_dn *pci = NULL;
 259         int err = NOTIFY_OK;
 260
 261         switch (action) {
 262         case PSERIES_RECONFIG_ADD:
 263                 pci = np->parent->data;
 264                 if (pci)
 265                         update_dn_pci_info(np, pci->phb);
 266                 break;
 267         default:
 268                 err = NOTIFY_DONE;
 269                 break;
 270         }
 271         return err;
 272 }
 273
 274 static struct notifier_block pci_dn_reconfig_nb = {
 275         .notifier_call = pci_dn_reconfig_notifier,
 276 };
 277
 278 struct kmem_cache *dtl_cache;
 279
 280 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
 281 /*
 282  * Allocate space for the dispatch trace log for all possible cpus
 283  * and register the buffers with the hypervisor.  This is used for
 284  * computing time stolen by the hypervisor.
 285  */
 286 static int alloc_dispatch_logs(void)
 287 {
 288         int cpu, ret;
 289         struct paca_struct *pp;
 290         struct dtl_entry *dtl;
 291
 292         if (!firmware_has_feature(FW_FEATURE_SPLPAR))
 293                 return 0;
 294
 295         if (!dtl_cache)
 296                 return 0;
 297
 298         for_each_possible_cpu(cpu) {
 299                 pp = &paca[cpu];
 300                 dtl = kmem_cache_alloc(dtl_cache, GFP_KERNEL);
 301                 if (!dtl) {
 302                         pr_warn("Failed to allocate dispatch trace log for cpu %d\n",
 303                                 cpu);
 304                         pr_warn("Stolen time statistics will be unreliable\n");
 305                         break;
 306                 }
 307
 308                 pp->dtl_ridx = 0;
 309                 pp->dispatch_log = dtl;
 310                 pp->dispatch_log_end = dtl + N_DISPATCH_LOG;
 311                 pp->dtl_curr = dtl;
 312         }
 313
 314         /* Register the DTL for the current (boot) cpu */
 315         dtl = get_paca()->dispatch_log;
 316         get_paca()->dtl_ridx = 0;
 317         get_paca()->dtl_curr = dtl;
 318         get_paca()->lppaca_ptr->dtl_idx = 0;
 319
 320         /* hypervisor reads buffer length from this field */
 321         dtl->enqueue_to_dispatch_time = DISPATCH_LOG_BYTES;
 322         ret = register_dtl(hard_smp_processor_id(), __pa(dtl));
 323         if (ret)
 324                 pr_err("WARNING: DTL registration of cpu %d (hw %d) failed "
 325                        "with %d\n", smp_processor_id(),
 326                        hard_smp_processor_id(), ret);
 327         get_paca()->lppaca_ptr->dtl_enable_mask = 2;
 328
 329         return 0;
 330 }
 331 #else /* !CONFIG_VIRT_CPU_ACCOUNTING */
 332 static inline int alloc_dispatch_logs(void)
 333 {
 334         return 0;
 335 }
 336 #endif /* CONFIG_VIRT_CPU_ACCOUNTING */
 337
 338 static int alloc_dispatch_log_kmem_cache(void)
 339 {
 340         dtl_cache = kmem_cache_create("dtl", DISPATCH_LOG_BYTES,
 341                                                 DISPATCH_LOG_BYTES, 0, NULL);
 342         if (!dtl_cache) {
 343                 pr_warn("Failed to create dispatch trace log buffer cache\n");
 344                 pr_warn("Stolen time statistics will be unreliable\n");
 345                 return 0;
 346         }
 347
 348         return alloc_dispatch_logs();
 349 }
 350 early_initcall(alloc_dispatch_log_kmem_cache);
 351
 352 static void pSeries_idle(void)
 353 {
 354         /* This would call on the cpuidle framework, and the back-end pseries
 355          * driver to  go to idle states
 356          */
 357         if (cpuidle_idle_call()) {
 358                 /* On error, execute default handler
 359                  * to go into low thread priority and possibly
 360                  * low power mode.
 361                  */
 362                 HMT_low();
 363                 HMT_very_low();
 364         }
 365 }
 366
 367 static void __init pSeries_setup_arch(void)
 368 {
 369         panic_timeout = 10;
 370
 371         /* Discover PIC type and setup ppc_md accordingly */
 372         pseries_discover_pic();
 373
 374         /* openpic global configuration register (64-bit format). */
 375         /* openpic Interrupt Source Unit pointer (64-bit format). */
 376         /* python0 facility area (mmio) (64-bit format) REAL address. */
 377
 378         /* init to some ~sane value until calibrate_delay() runs */
 379         loops_per_jiffy = 50000000;
 380
 381         fwnmi_init();
 382
 383         /* Find and initialize PCI host bridges */
 384         init_pci_config_tokens();
 385         find_and_init_phbs();
 386         pSeries_reconfig_notifier_register(&pci_dn_reconfig_nb);
 387         eeh_init();
 388
 389         pSeries_nvram_init();
 390
 391         if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
 392                 vpa_init(boot_cpuid);
 393                 ppc_md.power_save = pSeries_idle;
 394         }
 395
 396         if (firmware_has_feature(FW_FEATURE_LPAR))
 397                 ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
 398         else
 399                 ppc_md.enable_pmcs = power4_enable_pmcs;
 400 }
 401
 402 static int __init pSeries_init_panel(void)
 403 {
 404         /* Manually leave the kernel version on the panel. */
 405         ppc_md.progress("Linux ppc64\n", 0);
 406         ppc_md.progress(init_utsname()->version, 0);
 407
 408         return 0;
 409 }
 410 machine_arch_initcall(pseries, pSeries_init_panel);
 411
 412 static int pseries_set_dabr(unsigned long dabr)
 413 {
 414         return plpar_hcall_norets(H_SET_DABR, dabr);
 415 }
 416
 417 static int pseries_set_xdabr(unsigned long dabr)
 418 {
 419         /* We want to catch accesses from kernel and userspace */
 420         return plpar_hcall_norets(H_SET_XDABR, dabr,
 421                         H_DABRX_KERNEL | H_DABRX_USER);
 422 }
 423
 424 #define CMO_CHARACTERISTICS_TOKEN 44
 425 #define CMO_MAXLENGTH 1026
 426
 427 void pSeries_coalesce_init(void)
 428 {
 429         struct hvcall_mpp_x_data mpp_x_data;
 430
 431         if (firmware_has_feature(FW_FEATURE_CMO) && !h_get_mpp_x(&mpp_x_data))
 432                 powerpc_firmware_features |= FW_FEATURE_XCMO;
 433         else
 434                 powerpc_firmware_features &= ~FW_FEATURE_XCMO;
 435 }
 436
 437 /**
 438  * fw_cmo_feature_init - FW_FEATURE_CMO is not stored in ibm,hypertas-functions,
 439  * handle that here. (Stolen from parse_system_parameter_string)
 440  */
 441 void pSeries_cmo_feature_init(void)
 442 {
 443         char *ptr, *key, *value, *end;
 444         int call_status;
 445         int page_order = IOMMU_PAGE_SHIFT;
 446
 447         pr_debug(" -> fw_cmo_feature_init()\n");
 448         spin_lock(&rtas_data_buf_lock);
 449         memset(rtas_data_buf, 0, RTAS_DATA_BUF_SIZE);
 450         call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,
 451                                 NULL,
 452                                 CMO_CHARACTERISTICS_TOKEN,
 453                                 __pa(rtas_data_buf),
 454                                 RTAS_DATA_BUF_SIZE);
 455
 456         if (call_status != 0) {
 457                 spin_unlock(&rtas_data_buf_lock);
 458                 pr_debug("CMO not available\n");
 459                 pr_debug(" <- fw_cmo_feature_init()\n");
 460                 return;
 461         }
 462
 463         end = rtas_data_buf + CMO_MAXLENGTH - 2;
 464         ptr = rtas_data_buf + 2;        /* step over strlen value */
 465         key = value = ptr;
 466
 467         while (*ptr && (ptr <= end)) {
 468                 /* Separate the key and value by replacing '=' with '\0' and
 469                  * point the value at the string after the '='
 470                  */
 471                 if (ptr[0] == '=') {
 472                         ptr[0] = '\0';
 473                         value = ptr + 1;
 474                 } else if (ptr[0] == '\0' || ptr[0] == ',') {
 475                         /* Terminate the string containing the key/value pair */
 476                         ptr[0] = '\0';
 477
 478                         if (key == value) {
 479                                 pr_debug("Malformed key/value pair\n");
 480                                 /* Never found a '=', end processing */
 481                                 break;
 482                         }
 483
 484                         if (0 == strcmp(key, "CMOPageSize"))
 485                                 page_order = simple_strtol(value, NULL, 10);
 486                         else if (0 == strcmp(key, "PrPSP"))
 487                                 CMO_PrPSP = simple_strtol(value, NULL, 10);
 488                         else if (0 == strcmp(key, "SecPSP"))
 489                                 CMO_SecPSP = simple_strtol(value, NULL, 10);
 490                         value = key = ptr + 1;
 491                 }
 492                 ptr++;
 493         }
 494
 495         /* Page size is returned as the power of 2 of the page size,
 496          * convert to the page size in bytes before returning
 497          */
 498         CMO_PageSize = 1 << page_order;
 499         pr_debug("CMO_PageSize = %lu\n", CMO_PageSize);
 500
 501         if (CMO_PrPSP != -1 || CMO_SecPSP != -1) {
 502                 pr_info("CMO enabled\n");
 503                 pr_debug("CMO enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP,
 504                          CMO_SecPSP);
 505                 powerpc_firmware_features |= FW_FEATURE_CMO;
 506                 pSeries_coalesce_init();
 507         } else
 508                 pr_debug("CMO not enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP,
 509                          CMO_SecPSP);
 510         spin_unlock(&rtas_data_buf_lock);
 511         pr_debug(" <- fw_cmo_feature_init()\n");
 512 }
 513
 514 /*
 515  * Early initialization.  Relocation is on but do not reference unbolted pages
 516  */
 517 static void __init pSeries_init_early(void)
 518 {
 519         pr_debug(" -> pSeries_init_early()\n");
 520
 521 #ifdef CONFIG_HVC_CONSOLE
 522         if (firmware_has_feature(FW_FEATURE_LPAR))
 523                 hvc_vio_init_early();
 524 #endif
 525         if (firmware_has_feature(FW_FEATURE_DABR))
 526                 ppc_md.set_dabr = pseries_set_dabr;
 527         else if (firmware_has_feature(FW_FEATURE_XDABR))
 528                 ppc_md.set_dabr = pseries_set_xdabr;
 529
 530         pSeries_cmo_feature_init();
 531         iommu_init_early_pSeries();
 532
 533         pr_debug(" <- pSeries_init_early()\n");
 534 }
 535
 536 /*
 537  * Called very early, MMU is off, device-tree isn't unflattened
 538  */
 539
 540 static int __init pSeries_probe_hypertas(unsigned long node,
 541                                          const char *uname, int depth,
 542                                          void *data)
 543 {
 544         const char *hypertas;
 545         unsigned long len;
 546
 547         if (depth != 1 ||
 548             (strcmp(uname, "rtas") != 0 && strcmp(uname, "rtas@0") != 0))
 549                 return 0;
 550
 551         hypertas = of_get_flat_dt_prop(node, "ibm,hypertas-functions", &len);
 552         if (!hypertas)
 553                 return 1;
 554
 555         powerpc_firmware_features |= FW_FEATURE_LPAR;
 556         fw_feature_init(hypertas, len);
 557
 558         return 1;
 559 }
 560
 561 static int __init pSeries_probe(void)
 562 {
 563         unsigned long root = of_get_flat_dt_root();
 564         char *dtype = of_get_flat_dt_prop(root, "device_type", NULL);
 565
 566         if (dtype == NULL)
 567                 return 0;
 568         if (strcmp(dtype, "chrp"))
 569                 return 0;
 570
 571         /* Cell blades firmware claims to be chrp while it's not. Until this
 572          * is fixed, we need to avoid those here.
 573          */
 574         if (of_flat_dt_is_compatible(root, "IBM,CPBW-1.0") ||
 575             of_flat_dt_is_compatible(root, "IBM,CBEA"))
 576                 return 0;
 577
 578         pr_debug("pSeries detected, looking for LPAR capability...\n");
 579
 580         /* Now try to figure out if we are running on LPAR */
 581         of_scan_flat_dt(pSeries_probe_hypertas, NULL);
 582
 583         if (firmware_has_feature(FW_FEATURE_LPAR))
 584                 hpte_init_lpar();
 585         else
 586                 hpte_init_native();
 587
 588         pr_debug("Machine is%s LPAR !\n",
 589                  (powerpc_firmware_features & FW_FEATURE_LPAR) ? "" : " not");
 590
 591         return 1;
 592 }
 593
 594 static int pSeries_pci_probe_mode(struct pci_bus *bus)
 595 {
 596         if (firmware_has_feature(FW_FEATURE_LPAR))
 597                 return PCI_PROBE_DEVTREE;
 598         return PCI_PROBE_NORMAL;
 599 }
 600
 601 /**
 602  * pSeries_power_off - tell firmware about how to power off the system.
 603  *
 604  * This function calls either the power-off rtas token in normal cases
 605  * or the ibm,power-off-ups token (if present & requested) in case of
 606  * a power failure. If power-off token is used, power on will only be
 607  * possible with power button press. If ibm,power-off-ups token is used
 608  * it will allow auto poweron after power is restored.
 609  */
 610 static void pSeries_power_off(void)
 611 {
 612         int rc;
 613         int rtas_poweroff_ups_token = rtas_token("ibm,power-off-ups");
 614
 615         if (rtas_flash_term_hook)
 616                 rtas_flash_term_hook(SYS_POWER_OFF);
 617
 618         if (rtas_poweron_auto == 0 ||
 619                 rtas_poweroff_ups_token == RTAS_UNKNOWN_SERVICE) {
 620                 rc = rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1);
 621                 printk(KERN_INFO "RTAS power-off returned %d\n", rc);
 622         } else {
 623                 rc = rtas_call(rtas_poweroff_ups_token, 0, 1, NULL);
 624                 printk(KERN_INFO "RTAS ibm,power-off-ups returned %d\n", rc);
 625         }
 626         for (;;);
 627 }
 628
 629 #ifndef CONFIG_PCI
 630 void pSeries_final_fixup(void) { }
 631 #endif
 632
 633 define_machine(pseries) {
 634         .name                   = "pSeries",
 635         .probe                  = pSeries_probe,
 636         .setup_arch             = pSeries_setup_arch,
 637         .init_early             = pSeries_init_early,
 638         .show_cpuinfo           = pSeries_show_cpuinfo,
 639         .log_error              = pSeries_log_error,
 640         .pcibios_fixup          = pSeries_final_fixup,
 641         .pci_probe_mode         = pSeries_pci_probe_mode,
 642         .restart                = rtas_restart,
 643         .power_off              = pSeries_power_off,
 644         .halt                   = rtas_halt,
 645         .panic                  = rtas_os_term,
 646         .get_boot_time          = rtas_get_boot_time,
 647         .get_rtc_time           = rtas_get_rtc_time,
 648         .set_rtc_time           = rtas_set_rtc_time,
 649         .calibrate_decr         = generic_calibrate_decr,
 650         .progress               = rtas_progress,
 651         .system_reset_exception = pSeries_system_reset_exception,
 652         .machine_check_exception = pSeries_machine_check_exception,
 653 };