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/module.h> 38 #include <linux/delay.h> 39 #include <linux/irq.h> 40 #include <linux/seq_file.h> 41 #include <linux/root_dev.h> 42 43 #include <asm/mmu.h> 44 #include <asm/processor.h> 45 #include <asm/io.h> 46 #include <asm/pgtable.h> 47 #include <asm/prom.h> 48 #include <asm/rtas.h> 49 #include <asm/pci-bridge.h> 50 #include <asm/iommu.h> 51 #include <asm/dma.h> 52 #include <asm/machdep.h> 53 #include <asm/irq.h> 54 #include <asm/time.h> 55 #include <asm/nvram.h> 56 #include <asm/pmc.h> 57 #include <asm/mpic.h> 58 #include <asm/xics.h> 59 #include <asm/ppc-pci.h> 60 #include <asm/i8259.h> 61 #include <asm/udbg.h> 62 #include <asm/smp.h> 63 #include <asm/firmware.h> 64 #include <asm/eeh.h> 65 #include <asm/pSeries_reconfig.h> 66 67 #include "plpar_wrappers.h" 68 #include "pseries.h" 69 70 int CMO_PrPSP = -1; 71 int CMO_SecPSP = -1; 72 unsigned long CMO_PageSize = (ASM_CONST(1) << IOMMU_PAGE_SHIFT); 73 EXPORT_SYMBOL(CMO_PageSize); 74 75 int fwnmi_active; /* TRUE if an FWNMI handler is present */ 76 77 static void pseries_shared_idle_sleep(void); 78 static void pseries_dedicated_idle_sleep(void); 79 80 static struct device_node *pSeries_mpic_node; 81 82 static void pSeries_show_cpuinfo(struct seq_file *m) 83 { 84 struct device_node *root; 85 const char *model = ""; 86 87 root = of_find_node_by_path("/"); 88 if (root) 89 model = of_get_property(root, "model", NULL); 90 seq_printf(m, "machine\t\t: CHRP %s\n", model); 91 of_node_put(root); 92 } 93 94 /* Initialize firmware assisted non-maskable interrupts if 95 * the firmware supports this feature. 96 */ 97 static void __init fwnmi_init(void) 98 { 99 unsigned long system_reset_addr, machine_check_addr; 100 101 int ibm_nmi_register = rtas_token("ibm,nmi-register"); 102 if (ibm_nmi_register == RTAS_UNKNOWN_SERVICE) 103 return; 104 105 /* If the kernel's not linked at zero we point the firmware at low 106 * addresses anyway, and use a trampoline to get to the real code. */ 107 system_reset_addr = __pa(system_reset_fwnmi) - PHYSICAL_START; 108 machine_check_addr = __pa(machine_check_fwnmi) - PHYSICAL_START; 109 110 if (0 == rtas_call(ibm_nmi_register, 2, 1, NULL, system_reset_addr, 111 machine_check_addr)) 112 fwnmi_active = 1; 113 } 114 115 static void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc) 116 { 117 struct irq_chip *chip = irq_desc_get_chip(desc); 118 unsigned int cascade_irq = i8259_irq(); 119 120 if (cascade_irq != NO_IRQ) 121 generic_handle_irq(cascade_irq); 122 123 chip->irq_eoi(&desc->irq_data); 124 } 125 126 static void __init pseries_setup_i8259_cascade(void) 127 { 128 struct device_node *np, *old, *found = NULL; 129 unsigned int cascade; 130 const u32 *addrp; 131 unsigned long intack = 0; 132 int naddr; 133 134 for_each_node_by_type(np, "interrupt-controller") { 135 if (of_device_is_compatible(np, "chrp,iic")) { 136 found = np; 137 break; 138 } 139 } 140 141 if (found == NULL) { 142 printk(KERN_DEBUG "pic: no ISA interrupt controller\n"); 143 return; 144 } 145 146 cascade = irq_of_parse_and_map(found, 0); 147 if (cascade == NO_IRQ) { 148 printk(KERN_ERR "pic: failed to map cascade interrupt"); 149 return; 150 } 151 pr_debug("pic: cascade mapped to irq %d\n", cascade); 152 153 for (old = of_node_get(found); old != NULL ; old = np) { 154 np = of_get_parent(old); 155 of_node_put(old); 156 if (np == NULL) 157 break; 158 if (strcmp(np->name, "pci") != 0) 159 continue; 160 addrp = of_get_property(np, "8259-interrupt-acknowledge", NULL); 161 if (addrp == NULL) 162 continue; 163 naddr = of_n_addr_cells(np); 164 intack = addrp[naddr-1]; 165 if (naddr > 1) 166 intack |= ((unsigned long)addrp[naddr-2]) << 32; 167 } 168 if (intack) 169 printk(KERN_DEBUG "pic: PCI 8259 intack at 0x%016lx\n", intack); 170 i8259_init(found, intack); 171 of_node_put(found); 172 irq_set_chained_handler(cascade, pseries_8259_cascade); 173 } 174 175 static void __init pseries_mpic_init_IRQ(void) 176 { 177 struct device_node *np; 178 const unsigned int *opprop; 179 unsigned long openpic_addr = 0; 180 int naddr, n, i, opplen; 181 struct mpic *mpic; 182 183 np = of_find_node_by_path("/"); 184 naddr = of_n_addr_cells(np); 185 opprop = of_get_property(np, "platform-open-pic", &opplen); 186 if (opprop != 0) { 187 openpic_addr = of_read_number(opprop, naddr); 188 printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr); 189 } 190 of_node_put(np); 191 192 BUG_ON(openpic_addr == 0); 193 194 /* Setup the openpic driver */ 195 mpic = mpic_alloc(pSeries_mpic_node, openpic_addr, 196 MPIC_PRIMARY, 197 16, 250, /* isu size, irq count */ 198 " MPIC "); 199 BUG_ON(mpic == NULL); 200 201 /* Add ISUs */ 202 opplen /= sizeof(u32); 203 for (n = 0, i = naddr; i < opplen; i += naddr, n++) { 204 unsigned long isuaddr = of_read_number(opprop + i, naddr); 205 mpic_assign_isu(mpic, n, isuaddr); 206 } 207 208 /* Setup top-level get_irq */ 209 ppc_md.get_irq = mpic_get_irq; 210 211 /* All ISUs are setup, complete initialization */ 212 mpic_init(mpic); 213 214 /* Look for cascade */ 215 pseries_setup_i8259_cascade(); 216 } 217 218 static void __init pseries_xics_init_IRQ(void) 219 { 220 xics_init(); 221 pseries_setup_i8259_cascade(); 222 } 223 224 static void pseries_lpar_enable_pmcs(void) 225 { 226 unsigned long set, reset; 227 228 set = 1UL << 63; 229 reset = 0; 230 plpar_hcall_norets(H_PERFMON, set, reset); 231 } 232 233 static void __init pseries_discover_pic(void) 234 { 235 struct device_node *np; 236 const char *typep; 237 238 for (np = NULL; (np = of_find_node_by_name(np, 239 "interrupt-controller"));) { 240 typep = of_get_property(np, "compatible", NULL); 241 if (strstr(typep, "open-pic")) { 242 pSeries_mpic_node = of_node_get(np); 243 ppc_md.init_IRQ = pseries_mpic_init_IRQ; 244 setup_kexec_cpu_down_mpic(); 245 smp_init_pseries_mpic(); 246 return; 247 } else if (strstr(typep, "ppc-xicp")) { 248 ppc_md.init_IRQ = pseries_xics_init_IRQ; 249 setup_kexec_cpu_down_xics(); 250 smp_init_pseries_xics(); 251 return; 252 } 253 } 254 printk(KERN_ERR "pSeries_discover_pic: failed to recognize" 255 " interrupt-controller\n"); 256 } 257 258 static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node) 259 { 260 struct device_node *np = node; 261 struct pci_dn *pci = NULL; 262 int err = NOTIFY_OK; 263 264 switch (action) { 265 case PSERIES_RECONFIG_ADD: 266 pci = np->parent->data; 267 if (pci) 268 update_dn_pci_info(np, pci->phb); 269 break; 270 default: 271 err = NOTIFY_DONE; 272 break; 273 } 274 return err; 275 } 276 277 static struct notifier_block pci_dn_reconfig_nb = { 278 .notifier_call = pci_dn_reconfig_notifier, 279 }; 280 281 struct kmem_cache *dtl_cache; 282 283 #ifdef CONFIG_VIRT_CPU_ACCOUNTING 284 /* 285 * Allocate space for the dispatch trace log for all possible cpus 286 * and register the buffers with the hypervisor. This is used for 287 * computing time stolen by the hypervisor. 288 */ 289 static int alloc_dispatch_logs(void) 290 { 291 int cpu, ret; 292 struct paca_struct *pp; 293 struct dtl_entry *dtl; 294 295 if (!firmware_has_feature(FW_FEATURE_SPLPAR)) 296 return 0; 297 298 if (!dtl_cache) 299 return 0; 300 301 for_each_possible_cpu(cpu) { 302 pp = &paca[cpu]; 303 dtl = kmem_cache_alloc(dtl_cache, GFP_KERNEL); 304 if (!dtl) { 305 pr_warn("Failed to allocate dispatch trace log for cpu %d\n", 306 cpu); 307 pr_warn("Stolen time statistics will be unreliable\n"); 308 break; 309 } 310 311 pp->dtl_ridx = 0; 312 pp->dispatch_log = dtl; 313 pp->dispatch_log_end = dtl + N_DISPATCH_LOG; 314 pp->dtl_curr = dtl; 315 } 316 317 /* Register the DTL for the current (boot) cpu */ 318 dtl = get_paca()->dispatch_log; 319 get_paca()->dtl_ridx = 0; 320 get_paca()->dtl_curr = dtl; 321 get_paca()->lppaca_ptr->dtl_idx = 0; 322 323 /* hypervisor reads buffer length from this field */ 324 dtl->enqueue_to_dispatch_time = DISPATCH_LOG_BYTES; 325 ret = register_dtl(hard_smp_processor_id(), __pa(dtl)); 326 if (ret) 327 pr_warn("DTL registration failed for boot cpu %d (%d)\n", 328 smp_processor_id(), ret); 329 get_paca()->lppaca_ptr->dtl_enable_mask = 2; 330 331 return 0; 332 } 333 #else /* !CONFIG_VIRT_CPU_ACCOUNTING */ 334 static inline int alloc_dispatch_logs(void) 335 { 336 return 0; 337 } 338 #endif /* CONFIG_VIRT_CPU_ACCOUNTING */ 339 340 static int alloc_dispatch_log_kmem_cache(void) 341 { 342 dtl_cache = kmem_cache_create("dtl", DISPATCH_LOG_BYTES, 343 DISPATCH_LOG_BYTES, 0, NULL); 344 if (!dtl_cache) { 345 pr_warn("Failed to create dispatch trace log buffer cache\n"); 346 pr_warn("Stolen time statistics will be unreliable\n"); 347 return 0; 348 } 349 350 return alloc_dispatch_logs(); 351 } 352 early_initcall(alloc_dispatch_log_kmem_cache); 353 354 static void __init pSeries_setup_arch(void) 355 { 356 /* Discover PIC type and setup ppc_md accordingly */ 357 pseries_discover_pic(); 358 359 /* openpic global configuration register (64-bit format). */ 360 /* openpic Interrupt Source Unit pointer (64-bit format). */ 361 /* python0 facility area (mmio) (64-bit format) REAL address. */ 362 363 /* init to some ~sane value until calibrate_delay() runs */ 364 loops_per_jiffy = 50000000; 365 366 fwnmi_init(); 367 368 /* Find and initialize PCI host bridges */ 369 init_pci_config_tokens(); 370 find_and_init_phbs(); 371 pSeries_reconfig_notifier_register(&pci_dn_reconfig_nb); 372 eeh_init(); 373 374 pSeries_nvram_init(); 375 376 /* Choose an idle loop */ 377 if (firmware_has_feature(FW_FEATURE_SPLPAR)) { 378 vpa_init(boot_cpuid); 379 if (get_lppaca()->shared_proc) { 380 printk(KERN_DEBUG "Using shared processor idle loop\n"); 381 ppc_md.power_save = pseries_shared_idle_sleep; 382 } else { 383 printk(KERN_DEBUG "Using dedicated idle loop\n"); 384 ppc_md.power_save = pseries_dedicated_idle_sleep; 385 } 386 } else { 387 printk(KERN_DEBUG "Using default idle loop\n"); 388 } 389 390 if (firmware_has_feature(FW_FEATURE_LPAR)) 391 ppc_md.enable_pmcs = pseries_lpar_enable_pmcs; 392 else 393 ppc_md.enable_pmcs = power4_enable_pmcs; 394 } 395 396 static int __init pSeries_init_panel(void) 397 { 398 /* Manually leave the kernel version on the panel. */ 399 ppc_md.progress("Linux ppc64\n", 0); 400 ppc_md.progress(init_utsname()->version, 0); 401 402 return 0; 403 } 404 machine_arch_initcall(pseries, pSeries_init_panel); 405 406 static int pseries_set_dabr(unsigned long dabr) 407 { 408 return plpar_hcall_norets(H_SET_DABR, dabr); 409 } 410 411 static int pseries_set_xdabr(unsigned long dabr) 412 { 413 /* We want to catch accesses from kernel and userspace */ 414 return plpar_hcall_norets(H_SET_XDABR, dabr, 415 H_DABRX_KERNEL | H_DABRX_USER); 416 } 417 418 #define CMO_CHARACTERISTICS_TOKEN 44 419 #define CMO_MAXLENGTH 1026 420 421 void pSeries_coalesce_init(void) 422 { 423 struct hvcall_mpp_x_data mpp_x_data; 424 425 if (firmware_has_feature(FW_FEATURE_CMO) && !h_get_mpp_x(&mpp_x_data)) 426 powerpc_firmware_features |= FW_FEATURE_XCMO; 427 else 428 powerpc_firmware_features &= ~FW_FEATURE_XCMO; 429 } 430 431 /** 432 * fw_cmo_feature_init - FW_FEATURE_CMO is not stored in ibm,hypertas-functions, 433 * handle that here. (Stolen from parse_system_parameter_string) 434 */ 435 void pSeries_cmo_feature_init(void) 436 { 437 char *ptr, *key, *value, *end; 438 int call_status; 439 int page_order = IOMMU_PAGE_SHIFT; 440 441 pr_debug(" -> fw_cmo_feature_init()\n"); 442 spin_lock(&rtas_data_buf_lock); 443 memset(rtas_data_buf, 0, RTAS_DATA_BUF_SIZE); 444 call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1, 445 NULL, 446 CMO_CHARACTERISTICS_TOKEN, 447 __pa(rtas_data_buf), 448 RTAS_DATA_BUF_SIZE); 449 450 if (call_status != 0) { 451 spin_unlock(&rtas_data_buf_lock); 452 pr_debug("CMO not available\n"); 453 pr_debug(" <- fw_cmo_feature_init()\n"); 454 return; 455 } 456 457 end = rtas_data_buf + CMO_MAXLENGTH - 2; 458 ptr = rtas_data_buf + 2; /* step over strlen value */ 459 key = value = ptr; 460 461 while (*ptr && (ptr <= end)) { 462 /* Separate the key and value by replacing '=' with '\0' and 463 * point the value at the string after the '=' 464 */ 465 if (ptr[0] == '=') { 466 ptr[0] = '\0'; 467 value = ptr + 1; 468 } else if (ptr[0] == '\0' || ptr[0] == ',') { 469 /* Terminate the string containing the key/value pair */ 470 ptr[0] = '\0'; 471 472 if (key == value) { 473 pr_debug("Malformed key/value pair\n"); 474 /* Never found a '=', end processing */ 475 break; 476 } 477 478 if (0 == strcmp(key, "CMOPageSize")) 479 page_order = simple_strtol(value, NULL, 10); 480 else if (0 == strcmp(key, "PrPSP")) 481 CMO_PrPSP = simple_strtol(value, NULL, 10); 482 else if (0 == strcmp(key, "SecPSP")) 483 CMO_SecPSP = simple_strtol(value, NULL, 10); 484 value = key = ptr + 1; 485 } 486 ptr++; 487 } 488 489 /* Page size is returned as the power of 2 of the page size, 490 * convert to the page size in bytes before returning 491 */ 492 CMO_PageSize = 1 << page_order; 493 pr_debug("CMO_PageSize = %lu\n", CMO_PageSize); 494 495 if (CMO_PrPSP != -1 || CMO_SecPSP != -1) { 496 pr_info("CMO enabled\n"); 497 pr_debug("CMO enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP, 498 CMO_SecPSP); 499 powerpc_firmware_features |= FW_FEATURE_CMO; 500 pSeries_coalesce_init(); 501 } else 502 pr_debug("CMO not enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP, 503 CMO_SecPSP); 504 spin_unlock(&rtas_data_buf_lock); 505 pr_debug(" <- fw_cmo_feature_init()\n"); 506 } 507 508 /* 509 * Early initialization. Relocation is on but do not reference unbolted pages 510 */ 511 static void __init pSeries_init_early(void) 512 { 513 pr_debug(" -> pSeries_init_early()\n"); 514 515 if (firmware_has_feature(FW_FEATURE_LPAR)) 516 find_udbg_vterm(); 517 518 if (firmware_has_feature(FW_FEATURE_DABR)) 519 ppc_md.set_dabr = pseries_set_dabr; 520 else if (firmware_has_feature(FW_FEATURE_XDABR)) 521 ppc_md.set_dabr = pseries_set_xdabr; 522 523 pSeries_cmo_feature_init(); 524 iommu_init_early_pSeries(); 525 526 pr_debug(" <- pSeries_init_early()\n"); 527 } 528 529 /* 530 * Called very early, MMU is off, device-tree isn't unflattened 531 */ 532 533 static int __init pSeries_probe_hypertas(unsigned long node, 534 const char *uname, int depth, 535 void *data) 536 { 537 const char *hypertas; 538 unsigned long len; 539 540 if (depth != 1 || 541 (strcmp(uname, "rtas") != 0 && strcmp(uname, "rtas@0") != 0)) 542 return 0; 543 544 hypertas = of_get_flat_dt_prop(node, "ibm,hypertas-functions", &len); 545 if (!hypertas) 546 return 1; 547 548 powerpc_firmware_features |= FW_FEATURE_LPAR; 549 fw_feature_init(hypertas, len); 550 551 return 1; 552 } 553 554 static int __init pSeries_probe(void) 555 { 556 unsigned long root = of_get_flat_dt_root(); 557 char *dtype = of_get_flat_dt_prop(root, "device_type", NULL); 558 559 if (dtype == NULL) 560 return 0; 561 if (strcmp(dtype, "chrp")) 562 return 0; 563 564 /* Cell blades firmware claims to be chrp while it's not. Until this 565 * is fixed, we need to avoid those here. 566 */ 567 if (of_flat_dt_is_compatible(root, "IBM,CPBW-1.0") || 568 of_flat_dt_is_compatible(root, "IBM,CBEA")) 569 return 0; 570 571 pr_debug("pSeries detected, looking for LPAR capability...\n"); 572 573 /* Now try to figure out if we are running on LPAR */ 574 of_scan_flat_dt(pSeries_probe_hypertas, NULL); 575 576 if (firmware_has_feature(FW_FEATURE_LPAR)) 577 hpte_init_lpar(); 578 else 579 hpte_init_native(); 580 581 pr_debug("Machine is%s LPAR !\n", 582 (powerpc_firmware_features & FW_FEATURE_LPAR) ? "" : " not"); 583 584 return 1; 585 } 586 587 588 DECLARE_PER_CPU(long, smt_snooze_delay); 589 590 static void pseries_dedicated_idle_sleep(void) 591 { 592 unsigned int cpu = smp_processor_id(); 593 unsigned long start_snooze; 594 unsigned long in_purr, out_purr; 595 long snooze = __get_cpu_var(smt_snooze_delay); 596 597 /* 598 * Indicate to the HV that we are idle. Now would be 599 * a good time to find other work to dispatch. 600 */ 601 get_lppaca()->idle = 1; 602 get_lppaca()->donate_dedicated_cpu = 1; 603 in_purr = mfspr(SPRN_PURR); 604 605 /* 606 * We come in with interrupts disabled, and need_resched() 607 * has been checked recently. If we should poll for a little 608 * while, do so. 609 */ 610 if (snooze) { 611 start_snooze = get_tb() + snooze * tb_ticks_per_usec; 612 local_irq_enable(); 613 set_thread_flag(TIF_POLLING_NRFLAG); 614 615 while ((snooze < 0) || (get_tb() < start_snooze)) { 616 if (need_resched() || cpu_is_offline(cpu)) 617 goto out; 618 ppc64_runlatch_off(); 619 HMT_low(); 620 HMT_very_low(); 621 } 622 623 HMT_medium(); 624 clear_thread_flag(TIF_POLLING_NRFLAG); 625 smp_mb(); 626 local_irq_disable(); 627 if (need_resched() || cpu_is_offline(cpu)) 628 goto out; 629 } 630 631 cede_processor(); 632 633 out: 634 HMT_medium(); 635 out_purr = mfspr(SPRN_PURR); 636 get_lppaca()->wait_state_cycles += out_purr - in_purr; 637 get_lppaca()->donate_dedicated_cpu = 0; 638 get_lppaca()->idle = 0; 639 } 640 641 static void pseries_shared_idle_sleep(void) 642 { 643 /* 644 * Indicate to the HV that we are idle. Now would be 645 * a good time to find other work to dispatch. 646 */ 647 get_lppaca()->idle = 1; 648 649 /* 650 * Yield the processor to the hypervisor. We return if 651 * an external interrupt occurs (which are driven prior 652 * to returning here) or if a prod occurs from another 653 * processor. When returning here, external interrupts 654 * are enabled. 655 */ 656 cede_processor(); 657 658 get_lppaca()->idle = 0; 659 } 660 661 static int pSeries_pci_probe_mode(struct pci_bus *bus) 662 { 663 if (firmware_has_feature(FW_FEATURE_LPAR)) 664 return PCI_PROBE_DEVTREE; 665 return PCI_PROBE_NORMAL; 666 } 667 668 /** 669 * pSeries_power_off - tell firmware about how to power off the system. 670 * 671 * This function calls either the power-off rtas token in normal cases 672 * or the ibm,power-off-ups token (if present & requested) in case of 673 * a power failure. If power-off token is used, power on will only be 674 * possible with power button press. If ibm,power-off-ups token is used 675 * it will allow auto poweron after power is restored. 676 */ 677 static void pSeries_power_off(void) 678 { 679 int rc; 680 int rtas_poweroff_ups_token = rtas_token("ibm,power-off-ups"); 681 682 if (rtas_flash_term_hook) 683 rtas_flash_term_hook(SYS_POWER_OFF); 684 685 if (rtas_poweron_auto == 0 || 686 rtas_poweroff_ups_token == RTAS_UNKNOWN_SERVICE) { 687 rc = rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1); 688 printk(KERN_INFO "RTAS power-off returned %d\n", rc); 689 } else { 690 rc = rtas_call(rtas_poweroff_ups_token, 0, 1, NULL); 691 printk(KERN_INFO "RTAS ibm,power-off-ups returned %d\n", rc); 692 } 693 for (;;); 694 } 695 696 #ifndef CONFIG_PCI 697 void pSeries_final_fixup(void) { } 698 #endif 699 700 define_machine(pseries) { 701 .name = "pSeries", 702 .probe = pSeries_probe, 703 .setup_arch = pSeries_setup_arch, 704 .init_early = pSeries_init_early, 705 .show_cpuinfo = pSeries_show_cpuinfo, 706 .log_error = pSeries_log_error, 707 .pcibios_fixup = pSeries_final_fixup, 708 .pci_probe_mode = pSeries_pci_probe_mode, 709 .restart = rtas_restart, 710 .power_off = pSeries_power_off, 711 .halt = rtas_halt, 712 .panic = rtas_os_term, 713 .get_boot_time = rtas_get_boot_time, 714 .get_rtc_time = rtas_get_rtc_time, 715 .set_rtc_time = rtas_set_rtc_time, 716 .calibrate_decr = generic_calibrate_decr, 717 .progress = rtas_progress, 718 .system_reset_exception = pSeries_system_reset_exception, 719 .machine_check_exception = pSeries_machine_check_exception, 720 }; 721