powerpc/pseries: Cleanup VPA registration and deregistration errors
[linux-2.6.git] / 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/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_err("WARNING: DTL registration of cpu %d (hw %d) failed "
328                        "with %d\n", smp_processor_id(),
329                        hard_smp_processor_id(), ret);
330         get_paca()->lppaca_ptr->dtl_enable_mask = 2;
331
332         return 0;
333 }
334 #else /* !CONFIG_VIRT_CPU_ACCOUNTING */
335 static inline int alloc_dispatch_logs(void)
336 {
337         return 0;
338 }
339 #endif /* CONFIG_VIRT_CPU_ACCOUNTING */
340
341 static int alloc_dispatch_log_kmem_cache(void)
342 {
343         dtl_cache = kmem_cache_create("dtl", DISPATCH_LOG_BYTES,
344                                                 DISPATCH_LOG_BYTES, 0, NULL);
345         if (!dtl_cache) {
346                 pr_warn("Failed to create dispatch trace log buffer cache\n");
347                 pr_warn("Stolen time statistics will be unreliable\n");
348                 return 0;
349         }
350
351         return alloc_dispatch_logs();
352 }
353 early_initcall(alloc_dispatch_log_kmem_cache);
354
355 static void __init pSeries_setup_arch(void)
356 {
357         /* Discover PIC type and setup ppc_md accordingly */
358         pseries_discover_pic();
359
360         /* openpic global configuration register (64-bit format). */
361         /* openpic Interrupt Source Unit pointer (64-bit format). */
362         /* python0 facility area (mmio) (64-bit format) REAL address. */
363
364         /* init to some ~sane value until calibrate_delay() runs */
365         loops_per_jiffy = 50000000;
366
367         fwnmi_init();
368
369         /* Find and initialize PCI host bridges */
370         init_pci_config_tokens();
371         find_and_init_phbs();
372         pSeries_reconfig_notifier_register(&pci_dn_reconfig_nb);
373         eeh_init();
374
375         pSeries_nvram_init();
376
377         /* Choose an idle loop */
378         if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
379                 vpa_init(boot_cpuid);
380                 if (get_lppaca()->shared_proc) {
381                         printk(KERN_DEBUG "Using shared processor idle loop\n");
382                         ppc_md.power_save = pseries_shared_idle_sleep;
383                 } else {
384                         printk(KERN_DEBUG "Using dedicated idle loop\n");
385                         ppc_md.power_save = pseries_dedicated_idle_sleep;
386                 }
387         } else {
388                 printk(KERN_DEBUG "Using default idle loop\n");
389         }
390
391         if (firmware_has_feature(FW_FEATURE_LPAR))
392                 ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
393         else
394                 ppc_md.enable_pmcs = power4_enable_pmcs;
395 }
396
397 static int __init pSeries_init_panel(void)
398 {
399         /* Manually leave the kernel version on the panel. */
400         ppc_md.progress("Linux ppc64\n", 0);
401         ppc_md.progress(init_utsname()->version, 0);
402
403         return 0;
404 }
405 machine_arch_initcall(pseries, pSeries_init_panel);
406
407 static int pseries_set_dabr(unsigned long dabr)
408 {
409         return plpar_hcall_norets(H_SET_DABR, dabr);
410 }
411
412 static int pseries_set_xdabr(unsigned long dabr)
413 {
414         /* We want to catch accesses from kernel and userspace */
415         return plpar_hcall_norets(H_SET_XDABR, dabr,
416                         H_DABRX_KERNEL | H_DABRX_USER);
417 }
418
419 #define CMO_CHARACTERISTICS_TOKEN 44
420 #define CMO_MAXLENGTH 1026
421
422 void pSeries_coalesce_init(void)
423 {
424         struct hvcall_mpp_x_data mpp_x_data;
425
426         if (firmware_has_feature(FW_FEATURE_CMO) && !h_get_mpp_x(&mpp_x_data))
427                 powerpc_firmware_features |= FW_FEATURE_XCMO;
428         else
429                 powerpc_firmware_features &= ~FW_FEATURE_XCMO;
430 }
431
432 /**
433  * fw_cmo_feature_init - FW_FEATURE_CMO is not stored in ibm,hypertas-functions,
434  * handle that here. (Stolen from parse_system_parameter_string)
435  */
436 void pSeries_cmo_feature_init(void)
437 {
438         char *ptr, *key, *value, *end;
439         int call_status;
440         int page_order = IOMMU_PAGE_SHIFT;
441
442         pr_debug(" -> fw_cmo_feature_init()\n");
443         spin_lock(&rtas_data_buf_lock);
444         memset(rtas_data_buf, 0, RTAS_DATA_BUF_SIZE);
445         call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,
446                                 NULL,
447                                 CMO_CHARACTERISTICS_TOKEN,
448                                 __pa(rtas_data_buf),
449                                 RTAS_DATA_BUF_SIZE);
450
451         if (call_status != 0) {
452                 spin_unlock(&rtas_data_buf_lock);
453                 pr_debug("CMO not available\n");
454                 pr_debug(" <- fw_cmo_feature_init()\n");
455                 return;
456         }
457
458         end = rtas_data_buf + CMO_MAXLENGTH - 2;
459         ptr = rtas_data_buf + 2;        /* step over strlen value */
460         key = value = ptr;
461
462         while (*ptr && (ptr <= end)) {
463                 /* Separate the key and value by replacing '=' with '\0' and
464                  * point the value at the string after the '='
465                  */
466                 if (ptr[0] == '=') {
467                         ptr[0] = '\0';
468                         value = ptr + 1;
469                 } else if (ptr[0] == '\0' || ptr[0] == ',') {
470                         /* Terminate the string containing the key/value pair */
471                         ptr[0] = '\0';
472
473                         if (key == value) {
474                                 pr_debug("Malformed key/value pair\n");
475                                 /* Never found a '=', end processing */
476                                 break;
477                         }
478
479                         if (0 == strcmp(key, "CMOPageSize"))
480                                 page_order = simple_strtol(value, NULL, 10);
481                         else if (0 == strcmp(key, "PrPSP"))
482                                 CMO_PrPSP = simple_strtol(value, NULL, 10);
483                         else if (0 == strcmp(key, "SecPSP"))
484                                 CMO_SecPSP = simple_strtol(value, NULL, 10);
485                         value = key = ptr + 1;
486                 }
487                 ptr++;
488         }
489
490         /* Page size is returned as the power of 2 of the page size,
491          * convert to the page size in bytes before returning
492          */
493         CMO_PageSize = 1 << page_order;
494         pr_debug("CMO_PageSize = %lu\n", CMO_PageSize);
495
496         if (CMO_PrPSP != -1 || CMO_SecPSP != -1) {
497                 pr_info("CMO enabled\n");
498                 pr_debug("CMO enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP,
499                          CMO_SecPSP);
500                 powerpc_firmware_features |= FW_FEATURE_CMO;
501                 pSeries_coalesce_init();
502         } else
503                 pr_debug("CMO not enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP,
504                          CMO_SecPSP);
505         spin_unlock(&rtas_data_buf_lock);
506         pr_debug(" <- fw_cmo_feature_init()\n");
507 }
508
509 /*
510  * Early initialization.  Relocation is on but do not reference unbolted pages
511  */
512 static void __init pSeries_init_early(void)
513 {
514         pr_debug(" -> pSeries_init_early()\n");
515
516 #ifdef CONFIG_HVC_CONSOLE
517         if (firmware_has_feature(FW_FEATURE_LPAR))
518                 hvc_vio_init_early();
519 #endif
520         if (firmware_has_feature(FW_FEATURE_DABR))
521                 ppc_md.set_dabr = pseries_set_dabr;
522         else if (firmware_has_feature(FW_FEATURE_XDABR))
523                 ppc_md.set_dabr = pseries_set_xdabr;
524
525         pSeries_cmo_feature_init();
526         iommu_init_early_pSeries();
527
528         pr_debug(" <- pSeries_init_early()\n");
529 }
530
531 /*
532  * Called very early, MMU is off, device-tree isn't unflattened
533  */
534
535 static int __init pSeries_probe_hypertas(unsigned long node,
536                                          const char *uname, int depth,
537                                          void *data)
538 {
539         const char *hypertas;
540         unsigned long len;
541
542         if (depth != 1 ||
543             (strcmp(uname, "rtas") != 0 && strcmp(uname, "rtas@0") != 0))
544                 return 0;
545
546         hypertas = of_get_flat_dt_prop(node, "ibm,hypertas-functions", &len);
547         if (!hypertas)
548                 return 1;
549
550         powerpc_firmware_features |= FW_FEATURE_LPAR;
551         fw_feature_init(hypertas, len);
552
553         return 1;
554 }
555
556 static int __init pSeries_probe(void)
557 {
558         unsigned long root = of_get_flat_dt_root();
559         char *dtype = of_get_flat_dt_prop(root, "device_type", NULL);
560
561         if (dtype == NULL)
562                 return 0;
563         if (strcmp(dtype, "chrp"))
564                 return 0;
565
566         /* Cell blades firmware claims to be chrp while it's not. Until this
567          * is fixed, we need to avoid those here.
568          */
569         if (of_flat_dt_is_compatible(root, "IBM,CPBW-1.0") ||
570             of_flat_dt_is_compatible(root, "IBM,CBEA"))
571                 return 0;
572
573         pr_debug("pSeries detected, looking for LPAR capability...\n");
574
575         /* Now try to figure out if we are running on LPAR */
576         of_scan_flat_dt(pSeries_probe_hypertas, NULL);
577
578         if (firmware_has_feature(FW_FEATURE_LPAR))
579                 hpte_init_lpar();
580         else
581                 hpte_init_native();
582
583         pr_debug("Machine is%s LPAR !\n",
584                  (powerpc_firmware_features & FW_FEATURE_LPAR) ? "" : " not");
585
586         return 1;
587 }
588
589
590 DECLARE_PER_CPU(long, smt_snooze_delay);
591
592 static void pseries_dedicated_idle_sleep(void)
593
594         unsigned int cpu = smp_processor_id();
595         unsigned long start_snooze;
596         unsigned long in_purr, out_purr;
597         long snooze = __get_cpu_var(smt_snooze_delay);
598
599         /*
600          * Indicate to the HV that we are idle. Now would be
601          * a good time to find other work to dispatch.
602          */
603         get_lppaca()->idle = 1;
604         get_lppaca()->donate_dedicated_cpu = 1;
605         in_purr = mfspr(SPRN_PURR);
606
607         /*
608          * We come in with interrupts disabled, and need_resched()
609          * has been checked recently.  If we should poll for a little
610          * while, do so.
611          */
612         if (snooze) {
613                 start_snooze = get_tb() + snooze * tb_ticks_per_usec;
614                 local_irq_enable();
615                 set_thread_flag(TIF_POLLING_NRFLAG);
616
617                 while ((snooze < 0) || (get_tb() < start_snooze)) {
618                         if (need_resched() || cpu_is_offline(cpu))
619                                 goto out;
620                         ppc64_runlatch_off();
621                         HMT_low();
622                         HMT_very_low();
623                 }
624
625                 HMT_medium();
626                 clear_thread_flag(TIF_POLLING_NRFLAG);
627                 smp_mb();
628                 local_irq_disable();
629                 if (need_resched() || cpu_is_offline(cpu))
630                         goto out;
631         }
632
633         cede_processor();
634
635 out:
636         HMT_medium();
637         out_purr = mfspr(SPRN_PURR);
638         get_lppaca()->wait_state_cycles += out_purr - in_purr;
639         get_lppaca()->donate_dedicated_cpu = 0;
640         get_lppaca()->idle = 0;
641 }
642
643 static void pseries_shared_idle_sleep(void)
644 {
645         /*
646          * Indicate to the HV that we are idle. Now would be
647          * a good time to find other work to dispatch.
648          */
649         get_lppaca()->idle = 1;
650
651         /*
652          * Yield the processor to the hypervisor.  We return if
653          * an external interrupt occurs (which are driven prior
654          * to returning here) or if a prod occurs from another
655          * processor. When returning here, external interrupts
656          * are enabled.
657          */
658         cede_processor();
659
660         get_lppaca()->idle = 0;
661 }
662
663 static int pSeries_pci_probe_mode(struct pci_bus *bus)
664 {
665         if (firmware_has_feature(FW_FEATURE_LPAR))
666                 return PCI_PROBE_DEVTREE;
667         return PCI_PROBE_NORMAL;
668 }
669
670 /**
671  * pSeries_power_off - tell firmware about how to power off the system.
672  *
673  * This function calls either the power-off rtas token in normal cases
674  * or the ibm,power-off-ups token (if present & requested) in case of
675  * a power failure. If power-off token is used, power on will only be
676  * possible with power button press. If ibm,power-off-ups token is used
677  * it will allow auto poweron after power is restored.
678  */
679 static void pSeries_power_off(void)
680 {
681         int rc;
682         int rtas_poweroff_ups_token = rtas_token("ibm,power-off-ups");
683
684         if (rtas_flash_term_hook)
685                 rtas_flash_term_hook(SYS_POWER_OFF);
686
687         if (rtas_poweron_auto == 0 ||
688                 rtas_poweroff_ups_token == RTAS_UNKNOWN_SERVICE) {
689                 rc = rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1);
690                 printk(KERN_INFO "RTAS power-off returned %d\n", rc);
691         } else {
692                 rc = rtas_call(rtas_poweroff_ups_token, 0, 1, NULL);
693                 printk(KERN_INFO "RTAS ibm,power-off-ups returned %d\n", rc);
694         }
695         for (;;);
696 }
697
698 #ifndef CONFIG_PCI
699 void pSeries_final_fixup(void) { }
700 #endif
701
702 define_machine(pseries) {
703         .name                   = "pSeries",
704         .probe                  = pSeries_probe,
705         .setup_arch             = pSeries_setup_arch,
706         .init_early             = pSeries_init_early,
707         .show_cpuinfo           = pSeries_show_cpuinfo,
708         .log_error              = pSeries_log_error,
709         .pcibios_fixup          = pSeries_final_fixup,
710         .pci_probe_mode         = pSeries_pci_probe_mode,
711         .restart                = rtas_restart,
712         .power_off              = pSeries_power_off,
713         .halt                   = rtas_halt,
714         .panic                  = rtas_os_term,
715         .get_boot_time          = rtas_get_boot_time,
716         .get_rtc_time           = rtas_get_rtc_time,
717         .set_rtc_time           = rtas_set_rtc_time,
718         .calibrate_decr         = generic_calibrate_decr,
719         .progress               = rtas_progress,
720         .system_reset_exception = pSeries_system_reset_exception,
721         .machine_check_exception = pSeries_machine_check_exception,
722 };