powerpc: Convert to new irq_* function names
[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 "xics.h"
57 #include <asm/pmc.h>
58 #include <asm/mpic.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         /* 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_IRQ();
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                         ppc_md.get_irq        = mpic_get_irq;
242                         setup_kexec_cpu_down_mpic();
243                         smp_init_pseries_mpic();
244                         return;
245                 } else if (strstr(typep, "ppc-xicp")) {
246                         ppc_md.init_IRQ       = pseries_xics_init_IRQ;
247                         setup_kexec_cpu_down_xics();
248                         smp_init_pseries_xics();
249                         return;
250                 }
251         }
252         printk(KERN_ERR "pSeries_discover_pic: failed to recognize"
253                " interrupt-controller\n");
254 }
255
256 static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
257 {
258         struct device_node *np = node;
259         struct pci_dn *pci = NULL;
260         int err = NOTIFY_OK;
261
262         switch (action) {
263         case PSERIES_RECONFIG_ADD:
264                 pci = np->parent->data;
265                 if (pci)
266                         update_dn_pci_info(np, pci->phb);
267                 break;
268         default:
269                 err = NOTIFY_DONE;
270                 break;
271         }
272         return err;
273 }
274
275 static struct notifier_block pci_dn_reconfig_nb = {
276         .notifier_call = pci_dn_reconfig_notifier,
277 };
278
279 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
280 /*
281  * Allocate space for the dispatch trace log for all possible cpus
282  * and register the buffers with the hypervisor.  This is used for
283  * computing time stolen by the hypervisor.
284  */
285 static int alloc_dispatch_logs(void)
286 {
287         int cpu, ret;
288         struct paca_struct *pp;
289         struct dtl_entry *dtl;
290
291         if (!firmware_has_feature(FW_FEATURE_SPLPAR))
292                 return 0;
293
294         for_each_possible_cpu(cpu) {
295                 pp = &paca[cpu];
296                 dtl = kmalloc_node(DISPATCH_LOG_BYTES, GFP_KERNEL,
297                                    cpu_to_node(cpu));
298                 if (!dtl) {
299                         pr_warn("Failed to allocate dispatch trace log for cpu %d\n",
300                                 cpu);
301                         pr_warn("Stolen time statistics will be unreliable\n");
302                         break;
303                 }
304
305                 pp->dtl_ridx = 0;
306                 pp->dispatch_log = dtl;
307                 pp->dispatch_log_end = dtl + N_DISPATCH_LOG;
308                 pp->dtl_curr = dtl;
309         }
310
311         /* Register the DTL for the current (boot) cpu */
312         dtl = get_paca()->dispatch_log;
313         get_paca()->dtl_ridx = 0;
314         get_paca()->dtl_curr = dtl;
315         get_paca()->lppaca_ptr->dtl_idx = 0;
316
317         /* hypervisor reads buffer length from this field */
318         dtl->enqueue_to_dispatch_time = DISPATCH_LOG_BYTES;
319         ret = register_dtl(hard_smp_processor_id(), __pa(dtl));
320         if (ret)
321                 pr_warn("DTL registration failed for boot cpu %d (%d)\n",
322                         smp_processor_id(), ret);
323         get_paca()->lppaca_ptr->dtl_enable_mask = 2;
324
325         return 0;
326 }
327
328 early_initcall(alloc_dispatch_logs);
329 #endif /* CONFIG_VIRT_CPU_ACCOUNTING */
330
331 static void __init pSeries_setup_arch(void)
332 {
333         /* Discover PIC type and setup ppc_md accordingly */
334         pseries_discover_pic();
335
336         /* openpic global configuration register (64-bit format). */
337         /* openpic Interrupt Source Unit pointer (64-bit format). */
338         /* python0 facility area (mmio) (64-bit format) REAL address. */
339
340         /* init to some ~sane value until calibrate_delay() runs */
341         loops_per_jiffy = 50000000;
342
343         fwnmi_init();
344
345         /* Find and initialize PCI host bridges */
346         init_pci_config_tokens();
347         find_and_init_phbs();
348         pSeries_reconfig_notifier_register(&pci_dn_reconfig_nb);
349         eeh_init();
350
351         pSeries_nvram_init();
352
353         /* Choose an idle loop */
354         if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
355                 vpa_init(boot_cpuid);
356                 if (get_lppaca()->shared_proc) {
357                         printk(KERN_DEBUG "Using shared processor idle loop\n");
358                         ppc_md.power_save = pseries_shared_idle_sleep;
359                 } else {
360                         printk(KERN_DEBUG "Using dedicated idle loop\n");
361                         ppc_md.power_save = pseries_dedicated_idle_sleep;
362                 }
363         } else {
364                 printk(KERN_DEBUG "Using default idle loop\n");
365         }
366
367         if (firmware_has_feature(FW_FEATURE_LPAR))
368                 ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
369         else
370                 ppc_md.enable_pmcs = power4_enable_pmcs;
371 }
372
373 static int __init pSeries_init_panel(void)
374 {
375         /* Manually leave the kernel version on the panel. */
376         ppc_md.progress("Linux ppc64\n", 0);
377         ppc_md.progress(init_utsname()->version, 0);
378
379         return 0;
380 }
381 arch_initcall(pSeries_init_panel);
382
383 static int pseries_set_dabr(unsigned long dabr)
384 {
385         return plpar_hcall_norets(H_SET_DABR, dabr);
386 }
387
388 static int pseries_set_xdabr(unsigned long dabr)
389 {
390         /* We want to catch accesses from kernel and userspace */
391         return plpar_hcall_norets(H_SET_XDABR, dabr,
392                         H_DABRX_KERNEL | H_DABRX_USER);
393 }
394
395 #define CMO_CHARACTERISTICS_TOKEN 44
396 #define CMO_MAXLENGTH 1026
397
398 /**
399  * fw_cmo_feature_init - FW_FEATURE_CMO is not stored in ibm,hypertas-functions,
400  * handle that here. (Stolen from parse_system_parameter_string)
401  */
402 void pSeries_cmo_feature_init(void)
403 {
404         char *ptr, *key, *value, *end;
405         int call_status;
406         int page_order = IOMMU_PAGE_SHIFT;
407
408         pr_debug(" -> fw_cmo_feature_init()\n");
409         spin_lock(&rtas_data_buf_lock);
410         memset(rtas_data_buf, 0, RTAS_DATA_BUF_SIZE);
411         call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,
412                                 NULL,
413                                 CMO_CHARACTERISTICS_TOKEN,
414                                 __pa(rtas_data_buf),
415                                 RTAS_DATA_BUF_SIZE);
416
417         if (call_status != 0) {
418                 spin_unlock(&rtas_data_buf_lock);
419                 pr_debug("CMO not available\n");
420                 pr_debug(" <- fw_cmo_feature_init()\n");
421                 return;
422         }
423
424         end = rtas_data_buf + CMO_MAXLENGTH - 2;
425         ptr = rtas_data_buf + 2;        /* step over strlen value */
426         key = value = ptr;
427
428         while (*ptr && (ptr <= end)) {
429                 /* Separate the key and value by replacing '=' with '\0' and
430                  * point the value at the string after the '='
431                  */
432                 if (ptr[0] == '=') {
433                         ptr[0] = '\0';
434                         value = ptr + 1;
435                 } else if (ptr[0] == '\0' || ptr[0] == ',') {
436                         /* Terminate the string containing the key/value pair */
437                         ptr[0] = '\0';
438
439                         if (key == value) {
440                                 pr_debug("Malformed key/value pair\n");
441                                 /* Never found a '=', end processing */
442                                 break;
443                         }
444
445                         if (0 == strcmp(key, "CMOPageSize"))
446                                 page_order = simple_strtol(value, NULL, 10);
447                         else if (0 == strcmp(key, "PrPSP"))
448                                 CMO_PrPSP = simple_strtol(value, NULL, 10);
449                         else if (0 == strcmp(key, "SecPSP"))
450                                 CMO_SecPSP = simple_strtol(value, NULL, 10);
451                         value = key = ptr + 1;
452                 }
453                 ptr++;
454         }
455
456         /* Page size is returned as the power of 2 of the page size,
457          * convert to the page size in bytes before returning
458          */
459         CMO_PageSize = 1 << page_order;
460         pr_debug("CMO_PageSize = %lu\n", CMO_PageSize);
461
462         if (CMO_PrPSP != -1 || CMO_SecPSP != -1) {
463                 pr_info("CMO enabled\n");
464                 pr_debug("CMO enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP,
465                          CMO_SecPSP);
466                 powerpc_firmware_features |= FW_FEATURE_CMO;
467         } else
468                 pr_debug("CMO not enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP,
469                          CMO_SecPSP);
470         spin_unlock(&rtas_data_buf_lock);
471         pr_debug(" <- fw_cmo_feature_init()\n");
472 }
473
474 /*
475  * Early initialization.  Relocation is on but do not reference unbolted pages
476  */
477 static void __init pSeries_init_early(void)
478 {
479         pr_debug(" -> pSeries_init_early()\n");
480
481         if (firmware_has_feature(FW_FEATURE_LPAR))
482                 find_udbg_vterm();
483
484         if (firmware_has_feature(FW_FEATURE_DABR))
485                 ppc_md.set_dabr = pseries_set_dabr;
486         else if (firmware_has_feature(FW_FEATURE_XDABR))
487                 ppc_md.set_dabr = pseries_set_xdabr;
488
489         pSeries_cmo_feature_init();
490         iommu_init_early_pSeries();
491
492         pr_debug(" <- pSeries_init_early()\n");
493 }
494
495 /*
496  * Called very early, MMU is off, device-tree isn't unflattened
497  */
498
499 static int __init pSeries_probe_hypertas(unsigned long node,
500                                          const char *uname, int depth,
501                                          void *data)
502 {
503         const char *hypertas;
504         unsigned long len;
505
506         if (depth != 1 ||
507             (strcmp(uname, "rtas") != 0 && strcmp(uname, "rtas@0") != 0))
508                 return 0;
509
510         hypertas = of_get_flat_dt_prop(node, "ibm,hypertas-functions", &len);
511         if (!hypertas)
512                 return 1;
513
514         powerpc_firmware_features |= FW_FEATURE_LPAR;
515         fw_feature_init(hypertas, len);
516
517         return 1;
518 }
519
520 static int __init pSeries_probe(void)
521 {
522         unsigned long root = of_get_flat_dt_root();
523         char *dtype = of_get_flat_dt_prop(root, "device_type", NULL);
524
525         if (dtype == NULL)
526                 return 0;
527         if (strcmp(dtype, "chrp"))
528                 return 0;
529
530         /* Cell blades firmware claims to be chrp while it's not. Until this
531          * is fixed, we need to avoid those here.
532          */
533         if (of_flat_dt_is_compatible(root, "IBM,CPBW-1.0") ||
534             of_flat_dt_is_compatible(root, "IBM,CBEA"))
535                 return 0;
536
537         pr_debug("pSeries detected, looking for LPAR capability...\n");
538
539         /* Now try to figure out if we are running on LPAR */
540         of_scan_flat_dt(pSeries_probe_hypertas, NULL);
541
542         if (firmware_has_feature(FW_FEATURE_LPAR))
543                 hpte_init_lpar();
544         else
545                 hpte_init_native();
546
547         pr_debug("Machine is%s LPAR !\n",
548                  (powerpc_firmware_features & FW_FEATURE_LPAR) ? "" : " not");
549
550         return 1;
551 }
552
553
554 DECLARE_PER_CPU(long, smt_snooze_delay);
555
556 static void pseries_dedicated_idle_sleep(void)
557
558         unsigned int cpu = smp_processor_id();
559         unsigned long start_snooze;
560         unsigned long in_purr, out_purr;
561         long snooze = __get_cpu_var(smt_snooze_delay);
562
563         /*
564          * Indicate to the HV that we are idle. Now would be
565          * a good time to find other work to dispatch.
566          */
567         get_lppaca()->idle = 1;
568         get_lppaca()->donate_dedicated_cpu = 1;
569         in_purr = mfspr(SPRN_PURR);
570
571         /*
572          * We come in with interrupts disabled, and need_resched()
573          * has been checked recently.  If we should poll for a little
574          * while, do so.
575          */
576         if (snooze) {
577                 start_snooze = get_tb() + snooze * tb_ticks_per_usec;
578                 local_irq_enable();
579                 set_thread_flag(TIF_POLLING_NRFLAG);
580
581                 while ((snooze < 0) || (get_tb() < start_snooze)) {
582                         if (need_resched() || cpu_is_offline(cpu))
583                                 goto out;
584                         ppc64_runlatch_off();
585                         HMT_low();
586                         HMT_very_low();
587                 }
588
589                 HMT_medium();
590                 clear_thread_flag(TIF_POLLING_NRFLAG);
591                 smp_mb();
592                 local_irq_disable();
593                 if (need_resched() || cpu_is_offline(cpu))
594                         goto out;
595         }
596
597         cede_processor();
598
599 out:
600         HMT_medium();
601         out_purr = mfspr(SPRN_PURR);
602         get_lppaca()->wait_state_cycles += out_purr - in_purr;
603         get_lppaca()->donate_dedicated_cpu = 0;
604         get_lppaca()->idle = 0;
605 }
606
607 static void pseries_shared_idle_sleep(void)
608 {
609         /*
610          * Indicate to the HV that we are idle. Now would be
611          * a good time to find other work to dispatch.
612          */
613         get_lppaca()->idle = 1;
614
615         /*
616          * Yield the processor to the hypervisor.  We return if
617          * an external interrupt occurs (which are driven prior
618          * to returning here) or if a prod occurs from another
619          * processor. When returning here, external interrupts
620          * are enabled.
621          */
622         cede_processor();
623
624         get_lppaca()->idle = 0;
625 }
626
627 static int pSeries_pci_probe_mode(struct pci_bus *bus)
628 {
629         if (firmware_has_feature(FW_FEATURE_LPAR))
630                 return PCI_PROBE_DEVTREE;
631         return PCI_PROBE_NORMAL;
632 }
633
634 /**
635  * pSeries_power_off - tell firmware about how to power off the system.
636  *
637  * This function calls either the power-off rtas token in normal cases
638  * or the ibm,power-off-ups token (if present & requested) in case of
639  * a power failure. If power-off token is used, power on will only be
640  * possible with power button press. If ibm,power-off-ups token is used
641  * it will allow auto poweron after power is restored.
642  */
643 static void pSeries_power_off(void)
644 {
645         int rc;
646         int rtas_poweroff_ups_token = rtas_token("ibm,power-off-ups");
647
648         if (rtas_flash_term_hook)
649                 rtas_flash_term_hook(SYS_POWER_OFF);
650
651         if (rtas_poweron_auto == 0 ||
652                 rtas_poweroff_ups_token == RTAS_UNKNOWN_SERVICE) {
653                 rc = rtas_call(rtas_token("power-off"), 2, 1, NULL, -1, -1);
654                 printk(KERN_INFO "RTAS power-off returned %d\n", rc);
655         } else {
656                 rc = rtas_call(rtas_poweroff_ups_token, 0, 1, NULL);
657                 printk(KERN_INFO "RTAS ibm,power-off-ups returned %d\n", rc);
658         }
659         for (;;);
660 }
661
662 #ifndef CONFIG_PCI
663 void pSeries_final_fixup(void) { }
664 #endif
665
666 define_machine(pseries) {
667         .name                   = "pSeries",
668         .probe                  = pSeries_probe,
669         .setup_arch             = pSeries_setup_arch,
670         .init_early             = pSeries_init_early,
671         .show_cpuinfo           = pSeries_show_cpuinfo,
672         .log_error              = pSeries_log_error,
673         .pcibios_fixup          = pSeries_final_fixup,
674         .pci_probe_mode         = pSeries_pci_probe_mode,
675         .restart                = rtas_restart,
676         .power_off              = pSeries_power_off,
677         .halt                   = rtas_halt,
678         .panic                  = rtas_os_term,
679         .get_boot_time          = rtas_get_boot_time,
680         .get_rtc_time           = rtas_get_rtc_time,
681         .set_rtc_time           = rtas_set_rtc_time,
682         .calibrate_decr         = generic_calibrate_decr,
683         .progress               = rtas_progress,
684         .system_reset_exception = pSeries_system_reset_exception,
685         .machine_check_exception = pSeries_machine_check_exception,
686 };