arch/ia64/sn/kernel/setup.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 1999,2001-2005 Silicon Graphics, Inc. All rights reserved.
   7  */
   8
   9 #include <linux/config.h>
  10 #include <linux/module.h>
  11 #include <linux/init.h>
  12 #include <linux/delay.h>
  13 #include <linux/kernel.h>
  14 #include <linux/kdev_t.h>
  15 #include <linux/string.h>
  16 #include <linux/tty.h>
  17 #include <linux/console.h>
  18 #include <linux/timex.h>
  19 #include <linux/sched.h>
  20 #include <linux/ioport.h>
  21 #include <linux/mm.h>
  22 #include <linux/serial.h>
  23 #include <linux/irq.h>
  24 #include <linux/bootmem.h>
  25 #include <linux/mmzone.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/acpi.h>
  28 #include <linux/compiler.h>
  29 #include <linux/sched.h>
  30 #include <linux/root_dev.h>
  31 #include <linux/nodemask.h>
  32 #include <linux/pm.h>
  33
  34 #include <asm/io.h>
  35 #include <asm/sal.h>
  36 #include <asm/machvec.h>
  37 #include <asm/system.h>
  38 #include <asm/processor.h>
  39 #include <asm/sn/arch.h>
  40 #include <asm/sn/addrs.h>
  41 #include <asm/sn/pda.h>
  42 #include <asm/sn/nodepda.h>
  43 #include <asm/sn/sn_cpuid.h>
  44 #include <asm/sn/simulator.h>
  45 #include <asm/sn/leds.h>
  46 #include <asm/sn/bte.h>
  47 #include <asm/sn/shub_mmr.h>
  48 #include <asm/sn/clksupport.h>
  49 #include <asm/sn/sn_sal.h>
  50 #include <asm/sn/geo.h>
  51 #include "xtalk/xwidgetdev.h"
  52 #include "xtalk/hubdev.h"
  53 #include <asm/sn/klconfig.h>
  54
  55
  56 DEFINE_PER_CPU(struct pda_s, pda_percpu);
  57
  58 #define MAX_PHYS_MEMORY         (1UL << 49)     /* 1 TB */
  59
  60 lboard_t *root_lboard[MAX_COMPACT_NODES];
  61
  62 extern void bte_init_node(nodepda_t *, cnodeid_t);
  63
  64 extern void sn_timer_init(void);
  65 extern unsigned long last_time_offset;
  66 extern void (*ia64_mark_idle) (int);
  67 extern void snidle(int);
  68 extern unsigned char acpi_kbd_controller_present;
  69
  70 unsigned long sn_rtc_cycles_per_second;
  71 EXPORT_SYMBOL(sn_rtc_cycles_per_second);
  72
  73 DEFINE_PER_CPU(struct sn_hub_info_s, __sn_hub_info);
  74 EXPORT_PER_CPU_SYMBOL(__sn_hub_info);
  75
  76 DEFINE_PER_CPU(short, __sn_cnodeid_to_nasid[MAX_NUMNODES]);
  77 EXPORT_PER_CPU_SYMBOL(__sn_cnodeid_to_nasid);
  78
  79 DEFINE_PER_CPU(struct nodepda_s *, __sn_nodepda);
  80 EXPORT_PER_CPU_SYMBOL(__sn_nodepda);
  81
  82 partid_t sn_partid = -1;
  83 EXPORT_SYMBOL(sn_partid);
  84 char sn_system_serial_number_string[128];
  85 EXPORT_SYMBOL(sn_system_serial_number_string);
  86 u64 sn_partition_serial_number;
  87 EXPORT_SYMBOL(sn_partition_serial_number);
  88 u8 sn_partition_id;
  89 EXPORT_SYMBOL(sn_partition_id);
  90 u8 sn_system_size;
  91 EXPORT_SYMBOL(sn_system_size);
  92 u8 sn_sharing_domain_size;
  93 EXPORT_SYMBOL(sn_sharing_domain_size);
  94 u8 sn_coherency_id;
  95 EXPORT_SYMBOL(sn_coherency_id);
  96 u8 sn_region_size;
  97 EXPORT_SYMBOL(sn_region_size);
  98
  99 short physical_node_map[MAX_PHYSNODE_ID];
 100
 101 EXPORT_SYMBOL(physical_node_map);
 102
 103 int numionodes;
 104
 105 static void sn_init_pdas(char **);
 106 static void scan_for_ionodes(void);
 107
 108 static nodepda_t *nodepdaindr[MAX_COMPACT_NODES];
 109
 110 /*
 111  * The format of "screen_info" is strange, and due to early i386-setup
 112  * code. This is just enough to make the console code think we're on a
 113  * VGA color display.
 114  */
 115 struct screen_info sn_screen_info = {
 116         .orig_x = 0,
 117         .orig_y = 0,
 118         .orig_video_mode = 3,
 119         .orig_video_cols = 80,
 120         .orig_video_ega_bx = 3,
 121         .orig_video_lines = 25,
 122         .orig_video_isVGA = 1,
 123         .orig_video_points = 16
 124 };
 125
 126 /*
 127  * This is here so we can use the CMOS detection in ide-probe.c to
 128  * determine what drives are present.  In theory, we don't need this
 129  * as the auto-detection could be done via ide-probe.c:do_probe() but
 130  * in practice that would be much slower, which is painful when
 131  * running in the simulator.  Note that passing zeroes in DRIVE_INFO
 132  * is sufficient (the IDE driver will autodetect the drive geometry).
 133  */
 134 #ifdef CONFIG_IA64_GENERIC
 135 extern char drive_info[4 * 16];
 136 #else
 137 char drive_info[4 * 16];
 138 #endif
 139
 140 /*
 141  * Get nasid of current cpu early in boot before nodepda is initialized
 142  */
 143 static int
 144 boot_get_nasid(void)
 145 {
 146         int nasid;
 147
 148         if (ia64_sn_get_sapic_info(get_sapicid(), &nasid, NULL, NULL))
 149                 BUG();
 150         return nasid;
 151 }
 152
 153 /*
 154  * This routine can only be used during init, since
 155  * smp_boot_data is an init data structure.
 156  * We have to use smp_boot_data.cpu_phys_id to find
 157  * the physical id of the processor because the normal
 158  * cpu_physical_id() relies on data structures that
 159  * may not be initialized yet.
 160  */
 161
 162 static int __init pxm_to_nasid(int pxm)
 163 {
 164         int i;
 165         int nid;
 166
 167         nid = pxm_to_nid_map[pxm];
 168         for (i = 0; i < num_node_memblks; i++) {
 169                 if (node_memblk[i].nid == nid) {
 170                         return NASID_GET(node_memblk[i].start_paddr);
 171                 }
 172         }
 173         return -1;
 174 }
 175
 176 /**
 177  * early_sn_setup - early setup routine for SN platforms
 178  *
 179  * Sets up an initial console to aid debugging.  Intended primarily
 180  * for bringup.  See start_kernel() in init/main.c.
 181  */
 182
 183 void __init early_sn_setup(void)
 184 {
 185         efi_system_table_t *efi_systab;
 186         efi_config_table_t *config_tables;
 187         struct ia64_sal_systab *sal_systab;
 188         struct ia64_sal_desc_entry_point *ep;
 189         char *p;
 190         int i, j;
 191
 192         /*
 193          * Parse enough of the SAL tables to locate the SAL entry point. Since, console
 194          * IO on SN2 is done via SAL calls, early_printk won't work without this.
 195          *
 196          * This code duplicates some of the ACPI table parsing that is in efi.c & sal.c.
 197          * Any changes to those file may have to be made hereas well.
 198          */
 199         efi_systab = (efi_system_table_t *) __va(ia64_boot_param->efi_systab);
 200         config_tables = __va(efi_systab->tables);
 201         for (i = 0; i < efi_systab->nr_tables; i++) {
 202                 if (efi_guidcmp(config_tables[i].guid, SAL_SYSTEM_TABLE_GUID) ==
 203                     0) {
 204                         sal_systab = __va(config_tables[i].table);
 205                         p = (char *)(sal_systab + 1);
 206                         for (j = 0; j < sal_systab->entry_count; j++) {
 207                                 if (*p == SAL_DESC_ENTRY_POINT) {
 208                                         ep = (struct ia64_sal_desc_entry_point
 209                                               *)p;
 210                                         ia64_sal_handler_init(__va
 211                                                               (ep->sal_proc),
 212                                                               __va(ep->gp));
 213                                         return;
 214                                 }
 215                                 p += SAL_DESC_SIZE(*p);
 216                         }
 217                 }
 218         }
 219         /* Uh-oh, SAL not available?? */
 220         printk(KERN_ERR "failed to find SAL entry point\n");
 221 }
 222
 223 extern int platform_intr_list[];
 224 extern nasid_t master_nasid;
 225 static int __initdata shub_1_1_found = 0;
 226
 227 /*
 228  * sn_check_for_wars
 229  *
 230  * Set flag for enabling shub specific wars
 231  */
 232
 233 static inline int __init is_shub_1_1(int nasid)
 234 {
 235         unsigned long id;
 236         int rev;
 237
 238         if (is_shub2())
 239                 return 0;
 240         id = REMOTE_HUB_L(nasid, SH1_SHUB_ID);
 241         rev = (id & SH1_SHUB_ID_REVISION_MASK) >> SH1_SHUB_ID_REVISION_SHFT;
 242         return rev <= 2;
 243 }
 244
 245 static void __init sn_check_for_wars(void)
 246 {
 247         int cnode;
 248
 249         if (is_shub2()) {
 250                 /* none yet */
 251         } else {
 252                 for_each_online_node(cnode) {
 253                         if (is_shub_1_1(cnodeid_to_nasid(cnode)))
 254                                 shub_1_1_found = 1;
 255                 }
 256         }
 257 }
 258
 259 /**
 260  * sn_setup - SN platform setup routine
 261  * @cmdline_p: kernel command line
 262  *
 263  * Handles platform setup for SN machines.  This includes determining
 264  * the RTC frequency (via a SAL call), initializing secondary CPUs, and
 265  * setting up per-node data areas.  The console is also initialized here.
 266  */
 267 void __init sn_setup(char **cmdline_p)
 268 {
 269         long status, ticks_per_sec, drift;
 270         int pxm;
 271         int major = sn_sal_rev_major(), minor = sn_sal_rev_minor();
 272         extern void sn_cpu_init(void);
 273
 274         ia64_sn_plat_set_error_handling_features();
 275
 276         /*
 277          * If the generic code has enabled vga console support - lets
 278          * get rid of it again. This is a kludge for the fact that ACPI
 279          * currtently has no way of informing us if legacy VGA is available
 280          * or not.
 281          */
 282 #if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
 283         if (conswitchp == &vga_con) {
 284                 printk(KERN_DEBUG "SGI: Disabling VGA console\n");
 285 #ifdef CONFIG_DUMMY_CONSOLE
 286                 conswitchp = &dummy_con;
 287 #else
 288                 conswitchp = NULL;
 289 #endif                          /* CONFIG_DUMMY_CONSOLE */
 290         }
 291 #endif                          /* def(CONFIG_VT) && def(CONFIG_VGA_CONSOLE) */
 292
 293         MAX_DMA_ADDRESS = PAGE_OFFSET + MAX_PHYS_MEMORY;
 294
 295         memset(physical_node_map, -1, sizeof(physical_node_map));
 296         for (pxm = 0; pxm < MAX_PXM_DOMAINS; pxm++)
 297                 if (pxm_to_nid_map[pxm] != -1)
 298                         physical_node_map[pxm_to_nasid(pxm)] =
 299                             pxm_to_nid_map[pxm];
 300
 301         /*
 302          * Old PROMs do not provide an ACPI FADT. Disable legacy keyboard
 303          * support here so we don't have to listen to failed keyboard probe
 304          * messages.
 305          */
 306         if ((major < 2 || (major == 2 && minor <= 9)) &&
 307             acpi_kbd_controller_present) {
 308                 printk(KERN_INFO "Disabling legacy keyboard support as prom "
 309                        "is too old and doesn't provide FADT\n");
 310                 acpi_kbd_controller_present = 0;
 311         }
 312
 313         printk("SGI SAL version %x.%02x\n", major, minor);
 314
 315         /*
 316          * Confirm the SAL we're running on is recent enough...
 317          */
 318         if ((major < SN_SAL_MIN_MAJOR) || (major == SN_SAL_MIN_MAJOR &&
 319                                            minor < SN_SAL_MIN_MINOR)) {
 320                 printk(KERN_ERR "This kernel needs SGI SAL version >= "
 321                        "%x.%02x\n", SN_SAL_MIN_MAJOR, SN_SAL_MIN_MINOR);
 322                 panic("PROM version too old\n");
 323         }
 324
 325         master_nasid = boot_get_nasid();
 326
 327         status =
 328             ia64_sal_freq_base(SAL_FREQ_BASE_REALTIME_CLOCK, &ticks_per_sec,
 329                                &drift);
 330         if (status != 0 || ticks_per_sec < 100000) {
 331                 printk(KERN_WARNING
 332                        "unable to determine platform RTC clock frequency, guessing.\n");
 333                 /* PROM gives wrong value for clock freq. so guess */
 334                 sn_rtc_cycles_per_second = 1000000000000UL / 30000UL;
 335         } else
 336                 sn_rtc_cycles_per_second = ticks_per_sec;
 337
 338         platform_intr_list[ACPI_INTERRUPT_CPEI] = IA64_CPE_VECTOR;
 339
 340         /*
 341          * we set the default root device to /dev/hda
 342          * to make simulation easy
 343          */
 344         ROOT_DEV = Root_HDA1;
 345
 346         /*
 347          * Create the PDAs and NODEPDAs for all the cpus.
 348          */
 349         sn_init_pdas(cmdline_p);
 350
 351         ia64_mark_idle = &snidle;
 352
 353         /*
 354          * For the bootcpu, we do this here. All other cpus will make the
 355          * call as part of cpu_init in slave cpu initialization.
 356          */
 357         sn_cpu_init();
 358
 359 #ifdef CONFIG_SMP
 360         init_smp_config();
 361 #endif
 362         screen_info = sn_screen_info;
 363
 364         sn_timer_init();
 365
 366         /*
 367          * set pm_power_off to a SAL call to allow
 368          * sn machines to power off. The SAL call can be replaced
 369          * by an ACPI interface call when ACPI is fully implemented
 370          * for sn.
 371          */
 372         pm_power_off = ia64_sn_power_down;
 373 }
 374
 375 /**
 376  * sn_init_pdas - setup node data areas
 377  *
 378  * One time setup for Node Data Area.  Called by sn_setup().
 379  */
 380 static void __init sn_init_pdas(char **cmdline_p)
 381 {
 382         cnodeid_t cnode;
 383
 384         memset(sn_cnodeid_to_nasid, -1,
 385                         sizeof(__ia64_per_cpu_var(__sn_cnodeid_to_nasid)));
 386         for_each_online_node(cnode)
 387                 sn_cnodeid_to_nasid[cnode] =
 388                                 pxm_to_nasid(nid_to_pxm_map[cnode]);
 389
 390         numionodes = num_online_nodes();
 391         scan_for_ionodes();
 392
 393         /*
 394          * Allocate & initalize the nodepda for each node.
 395          */
 396         for_each_online_node(cnode) {
 397                 nodepdaindr[cnode] =
 398                     alloc_bootmem_node(NODE_DATA(cnode), sizeof(nodepda_t));
 399                 memset(nodepdaindr[cnode], 0, sizeof(nodepda_t));
 400                 memset(nodepdaindr[cnode]->phys_cpuid, -1,
 401                     sizeof(nodepdaindr[cnode]->phys_cpuid));
 402         }
 403
 404         /*
 405          * Allocate & initialize nodepda for TIOs.  For now, put them on node 0.
 406          */
 407         for (cnode = num_online_nodes(); cnode < numionodes; cnode++) {
 408                 nodepdaindr[cnode] =
 409                     alloc_bootmem_node(NODE_DATA(0), sizeof(nodepda_t));
 410                 memset(nodepdaindr[cnode], 0, sizeof(nodepda_t));
 411         }
 412
 413         /*
 414          * Now copy the array of nodepda pointers to each nodepda.
 415          */
 416         for (cnode = 0; cnode < numionodes; cnode++)
 417                 memcpy(nodepdaindr[cnode]->pernode_pdaindr, nodepdaindr,
 418                        sizeof(nodepdaindr));
 419
 420         /*
 421          * Set up IO related platform-dependent nodepda fields.
 422          * The following routine actually sets up the hubinfo struct
 423          * in nodepda.
 424          */
 425         for_each_online_node(cnode) {
 426                 bte_init_node(nodepdaindr[cnode], cnode);
 427         }
 428
 429         /*
 430          * Initialize the per node hubdev.  This includes IO Nodes and
 431          * headless/memless nodes.
 432          */
 433         for (cnode = 0; cnode < numionodes; cnode++) {
 434                 hubdev_init_node(nodepdaindr[cnode], cnode);
 435         }
 436 }
 437
 438 /**
 439  * sn_cpu_init - initialize per-cpu data areas
 440  * @cpuid: cpuid of the caller
 441  *
 442  * Called during cpu initialization on each cpu as it starts.
 443  * Currently, initializes the per-cpu data area for SNIA.
 444  * Also sets up a few fields in the nodepda.  Also known as
 445  * platform_cpu_init() by the ia64 machvec code.
 446  */
 447 void __init sn_cpu_init(void)
 448 {
 449         int cpuid;
 450         int cpuphyid;
 451         int nasid;
 452         int subnode;
 453         int slice;
 454         int cnode;
 455         int i;
 456         static int wars_have_been_checked;
 457
 458         memset(pda, 0, sizeof(pda));
 459         if (ia64_sn_get_sn_info(0, &sn_hub_info->shub2, &sn_hub_info->nasid_bitmask, &sn_hub_info->nasid_shift,
 460                                 &sn_system_size, &sn_sharing_domain_size, &sn_partition_id,
 461                                 &sn_coherency_id, &sn_region_size))
 462                 BUG();
 463         sn_hub_info->as_shift = sn_hub_info->nasid_shift - 2;
 464
 465         /*
 466          * The boot cpu makes this call again after platform initialization is
 467          * complete.
 468          */
 469         if (nodepdaindr[0] == NULL)
 470                 return;
 471
 472         cpuid = smp_processor_id();
 473         cpuphyid = get_sapicid();
 474
 475         if (ia64_sn_get_sapic_info(cpuphyid, &nasid, &subnode, &slice))
 476                 BUG();
 477
 478         for (i=0; i < MAX_NUMNODES; i++) {
 479                 if (nodepdaindr[i]) {
 480                         nodepdaindr[i]->phys_cpuid[cpuid].nasid = nasid;
 481                         nodepdaindr[i]->phys_cpuid[cpuid].slice = slice;
 482                         nodepdaindr[i]->phys_cpuid[cpuid].subnode = subnode;
 483                 }
 484         }
 485
 486         cnode = nasid_to_cnodeid(nasid);
 487
 488         sn_nodepda = nodepdaindr[cnode];
 489
 490         pda->led_address =
 491             (typeof(pda->led_address)) (LED0 + (slice << LED_CPU_SHIFT));
 492         pda->led_state = LED_ALWAYS_SET;
 493         pda->hb_count = HZ / 2;
 494         pda->hb_state = 0;
 495         pda->idle_flag = 0;
 496
 497         if (cpuid != 0) {
 498                 /* copy cpu 0's sn_cnodeid_to_nasid table to this cpu's */
 499                 memcpy(sn_cnodeid_to_nasid,
 500                        (&per_cpu(__sn_cnodeid_to_nasid, 0)),
 501                        sizeof(__ia64_per_cpu_var(__sn_cnodeid_to_nasid)));
 502         }
 503
 504         /*
 505          * Check for WARs.
 506          * Only needs to be done once, on BSP.
 507          * Has to be done after loop above, because it uses this cpu's
 508          * sn_cnodeid_to_nasid table which was just initialized if this
 509          * isn't cpu 0.
 510          * Has to be done before assignment below.
 511          */
 512         if (!wars_have_been_checked) {
 513                 sn_check_for_wars();
 514                 wars_have_been_checked = 1;
 515         }
 516         sn_hub_info->shub_1_1_found = shub_1_1_found;
 517
 518         /*
 519          * Set up addresses of PIO/MEM write status registers.
 520          */
 521         {
 522                 u64 pio1[] = {SH1_PIO_WRITE_STATUS_0, 0, SH1_PIO_WRITE_STATUS_1, 0};
 523                 u64 pio2[] = {SH2_PIO_WRITE_STATUS_0, SH2_PIO_WRITE_STATUS_1,
 524                         SH2_PIO_WRITE_STATUS_2, SH2_PIO_WRITE_STATUS_3};
 525                 u64 *pio;
 526                 pio = is_shub1() ? pio1 : pio2;
 527                 pda->pio_write_status_addr = (volatile unsigned long *) LOCAL_MMR_ADDR(pio[slice]);
 528                 pda->pio_write_status_val = is_shub1() ? SH_PIO_WRITE_STATUS_PENDING_WRITE_COUNT_MASK : 0;
 529         }
 530
 531         /*
 532          * WAR addresses for SHUB 1.x.
 533          */
 534         if (local_node_data->active_cpu_count++ == 0 && is_shub1()) {
 535                 int buddy_nasid;
 536                 buddy_nasid =
 537                     cnodeid_to_nasid(numa_node_id() ==
 538                                      num_online_nodes() - 1 ? 0 : numa_node_id() + 1);
 539                 pda->pio_shub_war_cam_addr =
 540                     (volatile unsigned long *)GLOBAL_MMR_ADDR(nasid,
 541                                                               SH1_PI_CAM_CONTROL);
 542         }
 543 }
 544
 545 /*
 546  * Scan klconfig for ionodes.  Add the nasids to the
 547  * physical_node_map and the pda and increment numionodes.
 548  */
 549
 550 static void __init scan_for_ionodes(void)
 551 {
 552         int nasid = 0;
 553         lboard_t *brd;
 554
 555         /* Setup ionodes with memory */
 556         for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) {
 557                 char *klgraph_header;
 558                 cnodeid_t cnodeid;
 559
 560                 if (physical_node_map[nasid] == -1)
 561                         continue;
 562
 563                 cnodeid = -1;
 564                 klgraph_header = __va(ia64_sn_get_klconfig_addr(nasid));
 565                 if (!klgraph_header) {
 566                         if (IS_RUNNING_ON_SIMULATOR())
 567                                 continue;
 568                         BUG();  /* All nodes must have klconfig tables! */
 569                 }
 570                 cnodeid = nasid_to_cnodeid(nasid);
 571                 root_lboard[cnodeid] = (lboard_t *)
 572                     NODE_OFFSET_TO_LBOARD((nasid),
 573                                           ((kl_config_hdr_t
 574                                             *) (klgraph_header))->
 575                                           ch_board_info);
 576         }
 577
 578         /* Scan headless/memless IO Nodes. */
 579         for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) {
 580                 /* if there's no nasid, don't try to read the klconfig on the node */
 581                 if (physical_node_map[nasid] == -1)
 582                         continue;
 583                 brd = find_lboard_any((lboard_t *)
 584                                       root_lboard[nasid_to_cnodeid(nasid)],
 585                                       KLTYPE_SNIA);
 586                 if (brd) {
 587                         brd = KLCF_NEXT_ANY(brd);       /* Skip this node's lboard */
 588                         if (!brd)
 589                                 continue;
 590                 }
 591
 592                 brd = find_lboard_any(brd, KLTYPE_SNIA);
 593
 594                 while (brd) {
 595                         sn_cnodeid_to_nasid[numionodes] = brd->brd_nasid;
 596                         physical_node_map[brd->brd_nasid] = numionodes;
 597                         root_lboard[numionodes] = brd;
 598                         numionodes++;
 599                         brd = KLCF_NEXT_ANY(brd);
 600                         if (!brd)
 601                                 break;
 602
 603                         brd = find_lboard_any(brd, KLTYPE_SNIA);
 604                 }
 605         }
 606
 607         /* Scan for TIO nodes. */
 608         for (nasid = 0; nasid < MAX_PHYSNODE_ID; nasid += 2) {
 609                 /* if there's no nasid, don't try to read the klconfig on the node */
 610                 if (physical_node_map[nasid] == -1)
 611                         continue;
 612                 brd = find_lboard_any((lboard_t *)
 613                                       root_lboard[nasid_to_cnodeid(nasid)],
 614                                       KLTYPE_TIO);
 615                 while (brd) {
 616                         sn_cnodeid_to_nasid[numionodes] = brd->brd_nasid;
 617                         physical_node_map[brd->brd_nasid] = numionodes;
 618                         root_lboard[numionodes] = brd;
 619                         numionodes++;
 620                         brd = KLCF_NEXT_ANY(brd);
 621                         if (!brd)
 622                                 break;
 623
 624                         brd = find_lboard_any(brd, KLTYPE_TIO);
 625                 }
 626         }
 627 }
 628
 629 int
 630 nasid_slice_to_cpuid(int nasid, int slice)
 631 {
 632         long cpu;
 633
 634         for (cpu=0; cpu < NR_CPUS; cpu++)
 635                 if (cpuid_to_nasid(cpu) == nasid &&
 636                                         cpuid_to_slice(cpu) == slice)
 637                         return cpu;
 638
 639         return -1;
 640 }