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 #include <linux/of.h> 44 #include <linux/kexec.h> 45 46 #include <asm/mmu.h> 47 #include <asm/processor.h> 48 #include <asm/io.h> 49 #include <asm/pgtable.h> 50 #include <asm/prom.h> 51 #include <asm/rtas.h> 52 #include <asm/pci-bridge.h> 53 #include <asm/iommu.h> 54 #include <asm/dma.h> 55 #include <asm/machdep.h> 56 #include <asm/irq.h> 57 #include <asm/time.h> 58 #include <asm/nvram.h> 59 #include <asm/pmc.h> 60 #include <asm/mpic.h> 61 #include <asm/xics.h> 62 #include <asm/ppc-pci.h> 63 #include <asm/i8259.h> 64 #include <asm/udbg.h> 65 #include <asm/smp.h> 66 #include <asm/firmware.h> 67 #include <asm/eeh.h> 68 69 #include "plpar_wrappers.h" 70 #include "pseries.h" 71 72 int CMO_PrPSP = -1; 73 int CMO_SecPSP = -1; 74 unsigned long CMO_PageSize = (ASM_CONST(1) << IOMMU_PAGE_SHIFT); 75 EXPORT_SYMBOL(CMO_PageSize); 76 77 int fwnmi_active; /* TRUE if an FWNMI handler is present */ 78 79 static struct device_node *pSeries_mpic_node; 80 81 static void pSeries_show_cpuinfo(struct seq_file *m) 82 { 83 struct device_node *root; 84 const char *model = ""; 85 86 root = of_find_node_by_path("/"); 87 if (root) 88 model = of_get_property(root, "model", NULL); 89 seq_printf(m, "machine\t\t: CHRP %s\n", model); 90 of_node_put(root); 91 } 92 93 /* Initialize firmware assisted non-maskable interrupts if 94 * the firmware supports this feature. 95 */ 96 static void __init fwnmi_init(void) 97 { 98 unsigned long system_reset_addr, machine_check_addr; 99 100 int ibm_nmi_register = rtas_token("ibm,nmi-register"); 101 if (ibm_nmi_register == RTAS_UNKNOWN_SERVICE) 102 return; 103 104 /* If the kernel's not linked at zero we point the firmware at low 105 * addresses anyway, and use a trampoline to get to the real code. */ 106 system_reset_addr = __pa(system_reset_fwnmi) - PHYSICAL_START; 107 machine_check_addr = __pa(machine_check_fwnmi) - PHYSICAL_START; 108 109 if (0 == rtas_call(ibm_nmi_register, 2, 1, NULL, system_reset_addr, 110 machine_check_addr)) 111 fwnmi_active = 1; 112 } 113 114 static void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc) 115 { 116 struct irq_chip *chip = irq_desc_get_chip(desc); 117 unsigned int cascade_irq = i8259_irq(); 118 119 if (cascade_irq != NO_IRQ) 120 generic_handle_irq(cascade_irq); 121 122 chip->irq_eoi(&desc->irq_data); 123 } 124 125 static void __init pseries_setup_i8259_cascade(void) 126 { 127 struct device_node *np, *old, *found = NULL; 128 unsigned int cascade; 129 const u32 *addrp; 130 unsigned long intack = 0; 131 int naddr; 132 133 for_each_node_by_type(np, "interrupt-controller") { 134 if (of_device_is_compatible(np, "chrp,iic")) { 135 found = np; 136 break; 137 } 138 } 139 140 if (found == NULL) { 141 printk(KERN_DEBUG "pic: no ISA interrupt controller\n"); 142 return; 143 } 144 145 cascade = irq_of_parse_and_map(found, 0); 146 if (cascade == NO_IRQ) { 147 printk(KERN_ERR "pic: failed to map cascade interrupt"); 148 return; 149 } 150 pr_debug("pic: cascade mapped to irq %d\n", cascade); 151 152 for (old = of_node_get(found); old != NULL ; old = np) { 153 np = of_get_parent(old); 154 of_node_put(old); 155 if (np == NULL) 156 break; 157 if (strcmp(np->name, "pci") != 0) 158 continue; 159 addrp = of_get_property(np, "8259-interrupt-acknowledge", NULL); 160 if (addrp == NULL) 161 continue; 162 naddr = of_n_addr_cells(np); 163 intack = addrp[naddr-1]; 164 if (naddr > 1) 165 intack |= ((unsigned long)addrp[naddr-2]) << 32; 166 } 167 if (intack) 168 printk(KERN_DEBUG "pic: PCI 8259 intack at 0x%016lx\n", intack); 169 i8259_init(found, intack); 170 of_node_put(found); 171 irq_set_chained_handler(cascade, pseries_8259_cascade); 172 } 173 174 static void __init pseries_mpic_init_IRQ(void) 175 { 176 struct device_node *np; 177 const unsigned int *opprop; 178 unsigned long openpic_addr = 0; 179 int naddr, n, i, opplen; 180 struct mpic *mpic; 181 182 np = of_find_node_by_path("/"); 183 naddr = of_n_addr_cells(np); 184 opprop = of_get_property(np, "platform-open-pic", &opplen); 185 if (opprop != 0) { 186 openpic_addr = of_read_number(opprop, naddr); 187 printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr); 188 } 189 of_node_put(np); 190 191 BUG_ON(openpic_addr == 0); 192 193 /* Setup the openpic driver */ 194 mpic = mpic_alloc(pSeries_mpic_node, openpic_addr, 195 MPIC_NO_RESET, 16, 0, " 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 OF_RECONFIG_ATTACH_NODE: 263 pci = np->parent->data; 264 if (pci) { 265 update_dn_pci_info(np, pci->phb); 266 267 /* Create EEH device for the OF node */ 268 eeh_dev_init(np, pci->phb); 269 } 270 break; 271 default: 272 err = NOTIFY_DONE; 273 break; 274 } 275 return err; 276 } 277 278 static struct notifier_block pci_dn_reconfig_nb = { 279 .notifier_call = pci_dn_reconfig_notifier, 280 }; 281 282 struct kmem_cache *dtl_cache; 283 284 #ifdef CONFIG_VIRT_CPU_ACCOUNTING 285 /* 286 * Allocate space for the dispatch trace log for all possible cpus 287 * and register the buffers with the hypervisor. This is used for 288 * computing time stolen by the hypervisor. 289 */ 290 static int alloc_dispatch_logs(void) 291 { 292 int cpu, ret; 293 struct paca_struct *pp; 294 struct dtl_entry *dtl; 295 296 if (!firmware_has_feature(FW_FEATURE_SPLPAR)) 297 return 0; 298 299 if (!dtl_cache) 300 return 0; 301 302 for_each_possible_cpu(cpu) { 303 pp = &paca[cpu]; 304 dtl = kmem_cache_alloc(dtl_cache, GFP_KERNEL); 305 if (!dtl) { 306 pr_warn("Failed to allocate dispatch trace log for cpu %d\n", 307 cpu); 308 pr_warn("Stolen time statistics will be unreliable\n"); 309 break; 310 } 311 312 pp->dtl_ridx = 0; 313 pp->dispatch_log = dtl; 314 pp->dispatch_log_end = dtl + N_DISPATCH_LOG; 315 pp->dtl_curr = dtl; 316 } 317 318 /* Register the DTL for the current (boot) cpu */ 319 dtl = get_paca()->dispatch_log; 320 get_paca()->dtl_ridx = 0; 321 get_paca()->dtl_curr = dtl; 322 get_paca()->lppaca_ptr->dtl_idx = 0; 323 324 /* hypervisor reads buffer length from this field */ 325 dtl->enqueue_to_dispatch_time = DISPATCH_LOG_BYTES; 326 ret = register_dtl(hard_smp_processor_id(), __pa(dtl)); 327 if (ret) 328 pr_err("WARNING: DTL registration of cpu %d (hw %d) failed " 329 "with %d\n", smp_processor_id(), 330 hard_smp_processor_id(), ret); 331 get_paca()->lppaca_ptr->dtl_enable_mask = 2; 332 333 return 0; 334 } 335 #else /* !CONFIG_VIRT_CPU_ACCOUNTING */ 336 static inline int alloc_dispatch_logs(void) 337 { 338 return 0; 339 } 340 #endif /* CONFIG_VIRT_CPU_ACCOUNTING */ 341 342 static int alloc_dispatch_log_kmem_cache(void) 343 { 344 dtl_cache = kmem_cache_create("dtl", DISPATCH_LOG_BYTES, 345 DISPATCH_LOG_BYTES, 0, NULL); 346 if (!dtl_cache) { 347 pr_warn("Failed to create dispatch trace log buffer cache\n"); 348 pr_warn("Stolen time statistics will be unreliable\n"); 349 return 0; 350 } 351 352 return alloc_dispatch_logs(); 353 } 354 early_initcall(alloc_dispatch_log_kmem_cache); 355 356 static void pSeries_idle(void) 357 { 358 /* This would call on the cpuidle framework, and the back-end pseries 359 * driver to go to idle states 360 */ 361 if (cpuidle_idle_call()) { 362 /* On error, execute default handler 363 * to go into low thread priority and possibly 364 * low power mode. 365 */ 366 HMT_low(); 367 HMT_very_low(); 368 } 369 } 370 371 /* 372 * Enable relocation on during exceptions. This has partition wide scope and 373 * may take a while to complete, if it takes longer than one second we will 374 * just give up rather than wasting any more time on this - if that turns out 375 * to ever be a problem in practice we can move this into a kernel thread to 376 * finish off the process later in boot. 377 */ 378 static int __init pSeries_enable_reloc_on_exc(void) 379 { 380 long rc; 381 unsigned int delay, total_delay = 0; 382 383 while (1) { 384 rc = enable_reloc_on_exceptions(); 385 if (!H_IS_LONG_BUSY(rc)) 386 return rc; 387 388 delay = get_longbusy_msecs(rc); 389 total_delay += delay; 390 if (total_delay > 1000) { 391 pr_warn("Warning: Giving up waiting to enable " 392 "relocation on exceptions (%u msec)!\n", 393 total_delay); 394 return rc; 395 } 396 397 mdelay(delay); 398 } 399 } 400 401 #ifdef CONFIG_KEXEC 402 static long pSeries_disable_reloc_on_exc(void) 403 { 404 long rc; 405 406 while (1) { 407 rc = disable_reloc_on_exceptions(); 408 if (!H_IS_LONG_BUSY(rc)) 409 return rc; 410 mdelay(get_longbusy_msecs(rc)); 411 } 412 } 413 414 static void pSeries_machine_kexec(struct kimage *image) 415 { 416 long rc; 417 418 if (firmware_has_feature(FW_FEATURE_SET_MODE) && 419 (image->type != KEXEC_TYPE_CRASH)) { 420 rc = pSeries_disable_reloc_on_exc(); 421 if (rc != H_SUCCESS) 422 pr_warning("Warning: Failed to disable relocation on " 423 "exceptions: %ld\n", rc); 424 } 425 426 default_machine_kexec(image); 427 } 428 #endif 429 430 static void __init pSeries_setup_arch(void) 431 { 432 panic_timeout = 10; 433 434 /* Discover PIC type and setup ppc_md accordingly */ 435 pseries_discover_pic(); 436 437 /* openpic global configuration register (64-bit format). */ 438 /* openpic Interrupt Source Unit pointer (64-bit format). */ 439 /* python0 facility area (mmio) (64-bit format) REAL address. */ 440 441 /* init to some ~sane value until calibrate_delay() runs */ 442 loops_per_jiffy = 50000000; 443 444 fwnmi_init(); 445 446 /* By default, only probe PCI (can be overriden by rtas_pci) */ 447 pci_add_flags(PCI_PROBE_ONLY); 448 449 /* Find and initialize PCI host bridges */ 450 init_pci_config_tokens(); 451 find_and_init_phbs(); 452 of_reconfig_notifier_register(&pci_dn_reconfig_nb); 453 454 pSeries_nvram_init(); 455 456 if (firmware_has_feature(FW_FEATURE_SPLPAR)) { 457 vpa_init(boot_cpuid); 458 ppc_md.power_save = pSeries_idle; 459 } 460 461 if (firmware_has_feature(FW_FEATURE_LPAR)) 462 ppc_md.enable_pmcs = pseries_lpar_enable_pmcs; 463 else 464 ppc_md.enable_pmcs = power4_enable_pmcs; 465 466 if (firmware_has_feature(FW_FEATURE_SET_MODE)) { 467 long rc; 468 if ((rc = pSeries_enable_reloc_on_exc()) != H_SUCCESS) { 469 pr_warn("Unable to enable relocation on exceptions: " 470 "%ld\n", rc); 471 } 472 } 473 } 474 475 static int __init pSeries_init_panel(void) 476 { 477 /* Manually leave the kernel version on the panel. */ 478 ppc_md.progress("Linux ppc64\n", 0); 479 ppc_md.progress(init_utsname()->version, 0); 480 481 return 0; 482 } 483 machine_arch_initcall(pseries, pSeries_init_panel); 484 485 static int pseries_set_dabr(unsigned long dabr, unsigned long dabrx) 486 { 487 return plpar_hcall_norets(H_SET_DABR, dabr); 488 } 489 490 static int pseries_set_xdabr(unsigned long dabr, unsigned long dabrx) 491 { 492 /* Have to set at least one bit in the DABRX according to PAPR */ 493 if (dabrx == 0 && dabr == 0) 494 dabrx = DABRX_USER; 495 /* PAPR says we can only set kernel and user bits */ 496 dabrx &= DABRX_KERNEL | DABRX_USER; 497 498 return plpar_hcall_norets(H_SET_XDABR, dabr, dabrx); 499 } 500 501 #define CMO_CHARACTERISTICS_TOKEN 44 502 #define CMO_MAXLENGTH 1026 503 504 void pSeries_coalesce_init(void) 505 { 506 struct hvcall_mpp_x_data mpp_x_data; 507 508 if (firmware_has_feature(FW_FEATURE_CMO) && !h_get_mpp_x(&mpp_x_data)) 509 powerpc_firmware_features |= FW_FEATURE_XCMO; 510 else 511 powerpc_firmware_features &= ~FW_FEATURE_XCMO; 512 } 513 514 /** 515 * fw_cmo_feature_init - FW_FEATURE_CMO is not stored in ibm,hypertas-functions, 516 * handle that here. (Stolen from parse_system_parameter_string) 517 */ 518 void pSeries_cmo_feature_init(void) 519 { 520 char *ptr, *key, *value, *end; 521 int call_status; 522 int page_order = IOMMU_PAGE_SHIFT; 523 524 pr_debug(" -> fw_cmo_feature_init()\n"); 525 spin_lock(&rtas_data_buf_lock); 526 memset(rtas_data_buf, 0, RTAS_DATA_BUF_SIZE); 527 call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1, 528 NULL, 529 CMO_CHARACTERISTICS_TOKEN, 530 __pa(rtas_data_buf), 531 RTAS_DATA_BUF_SIZE); 532 533 if (call_status != 0) { 534 spin_unlock(&rtas_data_buf_lock); 535 pr_debug("CMO not available\n"); 536 pr_debug(" <- fw_cmo_feature_init()\n"); 537 return; 538 } 539 540 end = rtas_data_buf + CMO_MAXLENGTH - 2; 541 ptr = rtas_data_buf + 2; /* step over strlen value */ 542 key = value = ptr; 543 544 while (*ptr && (ptr <= end)) { 545 /* Separate the key and value by replacing '=' with '\0' and 546 * point the value at the string after the '=' 547 */ 548 if (ptr[0] == '=') { 549 ptr[0] = '\0'; 550 value = ptr + 1; 551 } else if (ptr[0] == '\0' || ptr[0] == ',') { 552 /* Terminate the string containing the key/value pair */ 553 ptr[0] = '\0'; 554 555 if (key == value) { 556 pr_debug("Malformed key/value pair\n"); 557 /* Never found a '=', end processing */ 558 break; 559 } 560 561 if (0 == strcmp(key, "CMOPageSize")) 562 page_order = simple_strtol(value, NULL, 10); 563 else if (0 == strcmp(key, "PrPSP")) 564 CMO_PrPSP = simple_strtol(value, NULL, 10); 565 else if (0 == strcmp(key, "SecPSP")) 566 CMO_SecPSP = simple_strtol(value, NULL, 10); 567 value = key = ptr + 1; 568 } 569 ptr++; 570 } 571 572 /* Page size is returned as the power of 2 of the page size, 573 * convert to the page size in bytes before returning 574 */ 575 CMO_PageSize = 1 << page_order; 576 pr_debug("CMO_PageSize = %lu\n", CMO_PageSize); 577 578 if (CMO_PrPSP != -1 || CMO_SecPSP != -1) { 579 pr_info("CMO enabled\n"); 580 pr_debug("CMO enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP, 581 CMO_SecPSP); 582 powerpc_firmware_features |= FW_FEATURE_CMO; 583 pSeries_coalesce_init(); 584 } else 585 pr_debug("CMO not enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP, 586 CMO_SecPSP); 587 spin_unlock(&rtas_data_buf_lock); 588 pr_debug(" <- fw_cmo_feature_init()\n"); 589 } 590 591 /* 592 * Early initialization. Relocation is on but do not reference unbolted pages 593 */ 594 static void __init pSeries_init_early(void) 595 { 596 pr_debug(" -> pSeries_init_early()\n"); 597 598 #ifdef CONFIG_HVC_CONSOLE 599 if (firmware_has_feature(FW_FEATURE_LPAR)) 600 hvc_vio_init_early(); 601 #endif 602 if (firmware_has_feature(FW_FEATURE_XDABR)) 603 ppc_md.set_dabr = pseries_set_xdabr; 604 else if (firmware_has_feature(FW_FEATURE_DABR)) 605 ppc_md.set_dabr = pseries_set_dabr; 606 607 pSeries_cmo_feature_init(); 608 iommu_init_early_pSeries(); 609 610 pr_debug(" <- pSeries_init_early()\n"); 611 } 612 613 /* 614 * Called very early, MMU is off, device-tree isn't unflattened 615 */ 616 617 static int __init pSeries_probe_hypertas(unsigned long node, 618 const char *uname, int depth, 619 void *data) 620 { 621 const char *hypertas; 622 unsigned long len; 623 624 if (depth != 1 || 625 (strcmp(uname, "rtas") != 0 && strcmp(uname, "rtas@0") != 0)) 626 return 0; 627 628 hypertas = of_get_flat_dt_prop(node, "ibm,hypertas-functions", &len); 629 if (!hypertas) 630 return 1; 631 632 powerpc_firmware_features |= FW_FEATURE_LPAR; 633 fw_feature_init(hypertas, len); 634 635 return 1; 636 } 637 638 static int __init pSeries_probe(void) 639 { 640 unsigned long root = of_get_flat_dt_root(); 641 char *dtype = of_get_flat_dt_prop(root, "device_type", NULL); 642 643 if (dtype == NULL) 644 return 0; 645 if (strcmp(dtype, "chrp")) 646 return 0; 647 648 /* Cell blades firmware claims to be chrp while it's not. Until this 649 * is fixed, we need to avoid those here. 650 */ 651 if (of_flat_dt_is_compatible(root, "IBM,CPBW-1.0") || 652 of_flat_dt_is_compatible(root, "IBM,CBEA")) 653 return 0; 654 655 pr_debug("pSeries detected, looking for LPAR capability...\n"); 656 657 /* Now try to figure out if we are running on LPAR */ 658 of_scan_flat_dt(pSeries_probe_hypertas, NULL); 659 660 if (firmware_has_feature(FW_FEATURE_LPAR)) 661 hpte_init_lpar(); 662 else 663 hpte_init_native(); 664 665 pr_debug("Machine is%s LPAR !\n", 666 (powerpc_firmware_features & FW_FEATURE_LPAR) ? "" : " not"); 667 668 return 1; 669 } 670 671 static int pSeries_pci_probe_mode(struct pci_bus *bus) 672 { 673 if (firmware_has_feature(FW_FEATURE_LPAR)) 674 return PCI_PROBE_DEVTREE; 675 return PCI_PROBE_NORMAL; 676 } 677 678 /** 679 * pSeries_power_off - tell firmware about how to power off the system. 680 * 681 * This function calls either the power-off rtas token in normal cases 682 * or the ibm,power-off-ups token (if present & requested) in case of 683 * a power failure. If power-off token is used, power on will only be 684 * possible with power button press. If ibm,power-off-ups token is used 685 * it will allow auto poweron after power is restored. 686 */ 687 static void pSeries_power_off(void) 688 { 689 int rc; 690 int rtas_poweroff_ups_token = rtas_token("ibm,power-off-ups"); 691 692 if (rtas_flash_term_hook) 693 rtas_flash_term_hook(SYS_POWER_OFF); 694 695 if (rtas_poweron_auto == 0 || 696 rtas_poweroff_ups_token == RTAS_UNKNOWN_SERVICE) { 697 rc = rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1); 698 printk(KERN_INFO "RTAS power-off returned %d\n", rc); 699 } else { 700 rc = rtas_call(rtas_poweroff_ups_token, 0, 1, NULL); 701 printk(KERN_INFO "RTAS ibm,power-off-ups returned %d\n", rc); 702 } 703 for (;;); 704 } 705 706 #ifndef CONFIG_PCI 707 void pSeries_final_fixup(void) { } 708 #endif 709 710 define_machine(pseries) { 711 .name = "pSeries", 712 .probe = pSeries_probe, 713 .setup_arch = pSeries_setup_arch, 714 .init_early = pSeries_init_early, 715 .show_cpuinfo = pSeries_show_cpuinfo, 716 .log_error = pSeries_log_error, 717 .pcibios_fixup = pSeries_final_fixup, 718 .pci_probe_mode = pSeries_pci_probe_mode, 719 .restart = rtas_restart, 720 .power_off = pSeries_power_off, 721 .halt = rtas_halt, 722 .panic = rtas_os_term, 723 .get_boot_time = rtas_get_boot_time, 724 .get_rtc_time = rtas_get_rtc_time, 725 .set_rtc_time = rtas_set_rtc_time, 726 .calibrate_decr = generic_calibrate_decr, 727 .progress = rtas_progress, 728 .system_reset_exception = pSeries_system_reset_exception, 729 .machine_check_exception = pSeries_machine_check_exception, 730 #ifdef CONFIG_KEXEC 731 .machine_kexec = pSeries_machine_kexec, 732 #endif 733 }; 734