arch/x86/events/intel/uncore.c

   1 #include <linux/module.h>
   2
   3 #include <asm/cpu_device_id.h>
   4 #include <asm/intel-family.h>
   5 #include "uncore.h"
   6
   7 static struct intel_uncore_type *empty_uncore[] = { NULL, };
   8 struct intel_uncore_type **uncore_msr_uncores = empty_uncore;
   9 struct intel_uncore_type **uncore_pci_uncores = empty_uncore;
  10
  11 static bool pcidrv_registered;
  12 struct pci_driver *uncore_pci_driver;
  13 /* pci bus to socket mapping */
  14 DEFINE_RAW_SPINLOCK(pci2phy_map_lock);
  15 struct list_head pci2phy_map_head = LIST_HEAD_INIT(pci2phy_map_head);
  16 struct pci_extra_dev *uncore_extra_pci_dev;
  17 static int max_packages;
  18
  19 /* mask of cpus that collect uncore events */
  20 static cpumask_t uncore_cpu_mask;
  21
  22 /* constraint for the fixed counter */
  23 static struct event_constraint uncore_constraint_fixed =
  24         EVENT_CONSTRAINT(~0ULL, 1 << UNCORE_PMC_IDX_FIXED, ~0ULL);
  25 struct event_constraint uncore_constraint_empty =
  26         EVENT_CONSTRAINT(0, 0, 0);
  27
  28 MODULE_LICENSE("GPL");
  29
  30 static int uncore_pcibus_to_physid(struct pci_bus *bus)
  31 {
  32         struct pci2phy_map *map;
  33         int phys_id = -1;
  34
  35         raw_spin_lock(&pci2phy_map_lock);
  36         list_for_each_entry(map, &pci2phy_map_head, list) {
  37                 if (map->segment == pci_domain_nr(bus)) {
  38                         phys_id = map->pbus_to_physid[bus->number];
  39                         break;
  40                 }
  41         }
  42         raw_spin_unlock(&pci2phy_map_lock);
  43
  44         return phys_id;
  45 }
  46
  47 static void uncore_free_pcibus_map(void)
  48 {
  49         struct pci2phy_map *map, *tmp;
  50
  51         list_for_each_entry_safe(map, tmp, &pci2phy_map_head, list) {
  52                 list_del(&map->list);
  53                 kfree(map);
  54         }
  55 }
  56
  57 struct pci2phy_map *__find_pci2phy_map(int segment)
  58 {
  59         struct pci2phy_map *map, *alloc = NULL;
  60         int i;
  61
  62         lockdep_assert_held(&pci2phy_map_lock);
  63
  64 lookup:
  65         list_for_each_entry(map, &pci2phy_map_head, list) {
  66                 if (map->segment == segment)
  67                         goto end;
  68         }
  69
  70         if (!alloc) {
  71                 raw_spin_unlock(&pci2phy_map_lock);
  72                 alloc = kmalloc(sizeof(struct pci2phy_map), GFP_KERNEL);
  73                 raw_spin_lock(&pci2phy_map_lock);
  74
  75                 if (!alloc)
  76                         return NULL;
  77
  78                 goto lookup;
  79         }
  80
  81         map = alloc;
  82         alloc = NULL;
  83         map->segment = segment;
  84         for (i = 0; i < 256; i++)
  85                 map->pbus_to_physid[i] = -1;
  86         list_add_tail(&map->list, &pci2phy_map_head);
  87
  88 end:
  89         kfree(alloc);
  90         return map;
  91 }
  92
  93 ssize_t uncore_event_show(struct kobject *kobj,
  94                           struct kobj_attribute *attr, char *buf)
  95 {
  96         struct uncore_event_desc *event =
  97                 container_of(attr, struct uncore_event_desc, attr);
  98         return sprintf(buf, "%s", event->config);
  99 }
 100
 101 struct intel_uncore_box *uncore_pmu_to_box(struct intel_uncore_pmu *pmu, int cpu)
 102 {
 103         unsigned int pkgid = topology_logical_package_id(cpu);
 104
 105         /*
 106          * The unsigned check also catches the '-1' return value for non
 107          * existent mappings in the topology map.
 108          */
 109         return pkgid < max_packages ? pmu->boxes[pkgid] : NULL;
 110 }
 111
 112 u64 uncore_msr_read_counter(struct intel_uncore_box *box, struct perf_event *event)
 113 {
 114         u64 count;
 115
 116         rdmsrl(event->hw.event_base, count);
 117
 118         return count;
 119 }
 120
 121 /*
 122  * generic get constraint function for shared match/mask registers.
 123  */
 124 struct event_constraint *
 125 uncore_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
 126 {
 127         struct intel_uncore_extra_reg *er;
 128         struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
 129         struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
 130         unsigned long flags;
 131         bool ok = false;
 132
 133         /*
 134          * reg->alloc can be set due to existing state, so for fake box we
 135          * need to ignore this, otherwise we might fail to allocate proper
 136          * fake state for this extra reg constraint.
 137          */
 138         if (reg1->idx == EXTRA_REG_NONE ||
 139             (!uncore_box_is_fake(box) && reg1->alloc))
 140                 return NULL;
 141
 142         er = &box->shared_regs[reg1->idx];
 143         raw_spin_lock_irqsave(&er->lock, flags);
 144         if (!atomic_read(&er->ref) ||
 145             (er->config1 == reg1->config && er->config2 == reg2->config)) {
 146                 atomic_inc(&er->ref);
 147                 er->config1 = reg1->config;
 148                 er->config2 = reg2->config;
 149                 ok = true;
 150         }
 151         raw_spin_unlock_irqrestore(&er->lock, flags);
 152
 153         if (ok) {
 154                 if (!uncore_box_is_fake(box))
 155                         reg1->alloc = 1;
 156                 return NULL;
 157         }
 158
 159         return &uncore_constraint_empty;
 160 }
 161
 162 void uncore_put_constraint(struct intel_uncore_box *box, struct perf_event *event)
 163 {
 164         struct intel_uncore_extra_reg *er;
 165         struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
 166
 167         /*
 168          * Only put constraint if extra reg was actually allocated. Also
 169          * takes care of event which do not use an extra shared reg.
 170          *
 171          * Also, if this is a fake box we shouldn't touch any event state
 172          * (reg->alloc) and we don't care about leaving inconsistent box
 173          * state either since it will be thrown out.
 174          */
 175         if (uncore_box_is_fake(box) || !reg1->alloc)
 176                 return;
 177
 178         er = &box->shared_regs[reg1->idx];
 179         atomic_dec(&er->ref);
 180         reg1->alloc = 0;
 181 }
 182
 183 u64 uncore_shared_reg_config(struct intel_uncore_box *box, int idx)
 184 {
 185         struct intel_uncore_extra_reg *er;
 186         unsigned long flags;
 187         u64 config;
 188
 189         er = &box->shared_regs[idx];
 190
 191         raw_spin_lock_irqsave(&er->lock, flags);
 192         config = er->config;
 193         raw_spin_unlock_irqrestore(&er->lock, flags);
 194
 195         return config;
 196 }
 197
 198 static void uncore_assign_hw_event(struct intel_uncore_box *box,
 199                                    struct perf_event *event, int idx)
 200 {
 201         struct hw_perf_event *hwc = &event->hw;
 202
 203         hwc->idx = idx;
 204         hwc->last_tag = ++box->tags[idx];
 205
 206         if (hwc->idx == UNCORE_PMC_IDX_FIXED) {
 207                 hwc->event_base = uncore_fixed_ctr(box);
 208                 hwc->config_base = uncore_fixed_ctl(box);
 209                 return;
 210         }
 211
 212         hwc->config_base = uncore_event_ctl(box, hwc->idx);
 213         hwc->event_base  = uncore_perf_ctr(box, hwc->idx);
 214 }
 215
 216 void uncore_perf_event_update(struct intel_uncore_box *box, struct perf_event *event)
 217 {
 218         u64 prev_count, new_count, delta;
 219         int shift;
 220
 221         if (event->hw.idx >= UNCORE_PMC_IDX_FIXED)
 222                 shift = 64 - uncore_fixed_ctr_bits(box);
 223         else
 224                 shift = 64 - uncore_perf_ctr_bits(box);
 225
 226         /* the hrtimer might modify the previous event value */
 227 again:
 228         prev_count = local64_read(&event->hw.prev_count);
 229         new_count = uncore_read_counter(box, event);
 230         if (local64_xchg(&event->hw.prev_count, new_count) != prev_count)
 231                 goto again;
 232
 233         delta = (new_count << shift) - (prev_count << shift);
 234         delta >>= shift;
 235
 236         local64_add(delta, &event->count);
 237 }
 238
 239 /*
 240  * The overflow interrupt is unavailable for SandyBridge-EP, is broken
 241  * for SandyBridge. So we use hrtimer to periodically poll the counter
 242  * to avoid overflow.
 243  */
 244 static enum hrtimer_restart uncore_pmu_hrtimer(struct hrtimer *hrtimer)
 245 {
 246         struct intel_uncore_box *box;
 247         struct perf_event *event;
 248         unsigned long flags;
 249         int bit;
 250
 251         box = container_of(hrtimer, struct intel_uncore_box, hrtimer);
 252         if (!box->n_active || box->cpu != smp_processor_id())
 253                 return HRTIMER_NORESTART;
 254         /*
 255          * disable local interrupt to prevent uncore_pmu_event_start/stop
 256          * to interrupt the update process
 257          */
 258         local_irq_save(flags);
 259
 260         /*
 261          * handle boxes with an active event list as opposed to active
 262          * counters
 263          */
 264         list_for_each_entry(event, &box->active_list, active_entry) {
 265                 uncore_perf_event_update(box, event);
 266         }
 267
 268         for_each_set_bit(bit, box->active_mask, UNCORE_PMC_IDX_MAX)
 269                 uncore_perf_event_update(box, box->events[bit]);
 270
 271         local_irq_restore(flags);
 272
 273         hrtimer_forward_now(hrtimer, ns_to_ktime(box->hrtimer_duration));
 274         return HRTIMER_RESTART;
 275 }
 276
 277 void uncore_pmu_start_hrtimer(struct intel_uncore_box *box)
 278 {
 279         hrtimer_start(&box->hrtimer, ns_to_ktime(box->hrtimer_duration),
 280                       HRTIMER_MODE_REL_PINNED);
 281 }
 282
 283 void uncore_pmu_cancel_hrtimer(struct intel_uncore_box *box)
 284 {
 285         hrtimer_cancel(&box->hrtimer);
 286 }
 287
 288 static void uncore_pmu_init_hrtimer(struct intel_uncore_box *box)
 289 {
 290         hrtimer_init(&box->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 291         box->hrtimer.function = uncore_pmu_hrtimer;
 292 }
 293
 294 static struct intel_uncore_box *uncore_alloc_box(struct intel_uncore_type *type,
 295                                                  int node)
 296 {
 297         int i, size, numshared = type->num_shared_regs ;
 298         struct intel_uncore_box *box;
 299
 300         size = sizeof(*box) + numshared * sizeof(struct intel_uncore_extra_reg);
 301
 302         box = kzalloc_node(size, GFP_KERNEL, node);
 303         if (!box)
 304                 return NULL;
 305
 306         for (i = 0; i < numshared; i++)
 307                 raw_spin_lock_init(&box->shared_regs[i].lock);
 308
 309         uncore_pmu_init_hrtimer(box);
 310         box->cpu = -1;
 311         box->pci_phys_id = -1;
 312         box->pkgid = -1;
 313
 314         /* set default hrtimer timeout */
 315         box->hrtimer_duration = UNCORE_PMU_HRTIMER_INTERVAL;
 316
 317         INIT_LIST_HEAD(&box->active_list);
 318
 319         return box;
 320 }
 321
 322 /*
 323  * Using uncore_pmu_event_init pmu event_init callback
 324  * as a detection point for uncore events.
 325  */
 326 static int uncore_pmu_event_init(struct perf_event *event);
 327
 328 static bool is_box_event(struct intel_uncore_box *box, struct perf_event *event)
 329 {
 330         return &box->pmu->pmu == event->pmu;
 331 }
 332
 333 static int
 334 uncore_collect_events(struct intel_uncore_box *box, struct perf_event *leader,
 335                       bool dogrp)
 336 {
 337         struct perf_event *event;
 338         int n, max_count;
 339
 340         max_count = box->pmu->type->num_counters;
 341         if (box->pmu->type->fixed_ctl)
 342                 max_count++;
 343
 344         if (box->n_events >= max_count)
 345                 return -EINVAL;
 346
 347         n = box->n_events;
 348
 349         if (is_box_event(box, leader)) {
 350                 box->event_list[n] = leader;
 351                 n++;
 352         }
 353
 354         if (!dogrp)
 355                 return n;
 356
 357         list_for_each_entry(event, &leader->sibling_list, group_entry) {
 358                 if (!is_box_event(box, event) ||
 359                     event->state <= PERF_EVENT_STATE_OFF)
 360                         continue;
 361
 362                 if (n >= max_count)
 363                         return -EINVAL;
 364
 365                 box->event_list[n] = event;
 366                 n++;
 367         }
 368         return n;
 369 }
 370
 371 static struct event_constraint *
 372 uncore_get_event_constraint(struct intel_uncore_box *box, struct perf_event *event)
 373 {
 374         struct intel_uncore_type *type = box->pmu->type;
 375         struct event_constraint *c;
 376
 377         if (type->ops->get_constraint) {
 378                 c = type->ops->get_constraint(box, event);
 379                 if (c)
 380                         return c;
 381         }
 382
 383         if (event->attr.config == UNCORE_FIXED_EVENT)
 384                 return &uncore_constraint_fixed;
 385
 386         if (type->constraints) {
 387                 for_each_event_constraint(c, type->constraints) {
 388                         if ((event->hw.config & c->cmask) == c->code)
 389                                 return c;
 390                 }
 391         }
 392
 393         return &type->unconstrainted;
 394 }
 395
 396 static void uncore_put_event_constraint(struct intel_uncore_box *box,
 397                                         struct perf_event *event)
 398 {
 399         if (box->pmu->type->ops->put_constraint)
 400                 box->pmu->type->ops->put_constraint(box, event);
 401 }
 402
 403 static int uncore_assign_events(struct intel_uncore_box *box, int assign[], int n)
 404 {
 405         unsigned long used_mask[BITS_TO_LONGS(UNCORE_PMC_IDX_MAX)];
 406         struct event_constraint *c;
 407         int i, wmin, wmax, ret = 0;
 408         struct hw_perf_event *hwc;
 409
 410         bitmap_zero(used_mask, UNCORE_PMC_IDX_MAX);
 411
 412         for (i = 0, wmin = UNCORE_PMC_IDX_MAX, wmax = 0; i < n; i++) {
 413                 c = uncore_get_event_constraint(box, box->event_list[i]);
 414                 box->event_constraint[i] = c;
 415                 wmin = min(wmin, c->weight);
 416                 wmax = max(wmax, c->weight);
 417         }
 418
 419         /* fastpath, try to reuse previous register */
 420         for (i = 0; i < n; i++) {
 421                 hwc = &box->event_list[i]->hw;
 422                 c = box->event_constraint[i];
 423
 424                 /* never assigned */
 425                 if (hwc->idx == -1)
 426                         break;
 427
 428                 /* constraint still honored */
 429                 if (!test_bit(hwc->idx, c->idxmsk))
 430                         break;
 431
 432                 /* not already used */
 433                 if (test_bit(hwc->idx, used_mask))
 434                         break;
 435
 436                 __set_bit(hwc->idx, used_mask);
 437                 if (assign)
 438                         assign[i] = hwc->idx;
 439         }
 440         /* slow path */
 441         if (i != n)
 442                 ret = perf_assign_events(box->event_constraint, n,
 443                                          wmin, wmax, n, assign);
 444
 445         if (!assign || ret) {
 446                 for (i = 0; i < n; i++)
 447                         uncore_put_event_constraint(box, box->event_list[i]);
 448         }
 449         return ret ? -EINVAL : 0;
 450 }
 451
 452 static void uncore_pmu_event_start(struct perf_event *event, int flags)
 453 {
 454         struct intel_uncore_box *box = uncore_event_to_box(event);
 455         int idx = event->hw.idx;
 456
 457         if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
 458                 return;
 459
 460         if (WARN_ON_ONCE(idx == -1 || idx >= UNCORE_PMC_IDX_MAX))
 461                 return;
 462
 463         event->hw.state = 0;
 464         box->events[idx] = event;
 465         box->n_active++;
 466         __set_bit(idx, box->active_mask);
 467
 468         local64_set(&event->hw.prev_count, uncore_read_counter(box, event));
 469         uncore_enable_event(box, event);
 470
 471         if (box->n_active == 1) {
 472                 uncore_enable_box(box);
 473                 uncore_pmu_start_hrtimer(box);
 474         }
 475 }
 476
 477 static void uncore_pmu_event_stop(struct perf_event *event, int flags)
 478 {
 479         struct intel_uncore_box *box = uncore_event_to_box(event);
 480         struct hw_perf_event *hwc = &event->hw;
 481
 482         if (__test_and_clear_bit(hwc->idx, box->active_mask)) {
 483                 uncore_disable_event(box, event);
 484                 box->n_active--;
 485                 box->events[hwc->idx] = NULL;
 486                 WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED);
 487                 hwc->state |= PERF_HES_STOPPED;
 488
 489                 if (box->n_active == 0) {
 490                         uncore_disable_box(box);
 491                         uncore_pmu_cancel_hrtimer(box);
 492                 }
 493         }
 494
 495         if ((flags & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) {
 496                 /*
 497                  * Drain the remaining delta count out of a event
 498                  * that we are disabling:
 499                  */
 500                 uncore_perf_event_update(box, event);
 501                 hwc->state |= PERF_HES_UPTODATE;
 502         }
 503 }
 504
 505 static int uncore_pmu_event_add(struct perf_event *event, int flags)
 506 {
 507         struct intel_uncore_box *box = uncore_event_to_box(event);
 508         struct hw_perf_event *hwc = &event->hw;
 509         int assign[UNCORE_PMC_IDX_MAX];
 510         int i, n, ret;
 511
 512         if (!box)
 513                 return -ENODEV;
 514
 515         ret = n = uncore_collect_events(box, event, false);
 516         if (ret < 0)
 517                 return ret;
 518
 519         hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
 520         if (!(flags & PERF_EF_START))
 521                 hwc->state |= PERF_HES_ARCH;
 522
 523         ret = uncore_assign_events(box, assign, n);
 524         if (ret)
 525                 return ret;
 526
 527         /* save events moving to new counters */
 528         for (i = 0; i < box->n_events; i++) {
 529                 event = box->event_list[i];
 530                 hwc = &event->hw;
 531
 532                 if (hwc->idx == assign[i] &&
 533                         hwc->last_tag == box->tags[assign[i]])
 534                         continue;
 535                 /*
 536                  * Ensure we don't accidentally enable a stopped
 537                  * counter simply because we rescheduled.
 538                  */
 539                 if (hwc->state & PERF_HES_STOPPED)
 540                         hwc->state |= PERF_HES_ARCH;
 541
 542                 uncore_pmu_event_stop(event, PERF_EF_UPDATE);
 543         }
 544
 545         /* reprogram moved events into new counters */
 546         for (i = 0; i < n; i++) {
 547                 event = box->event_list[i];
 548                 hwc = &event->hw;
 549
 550                 if (hwc->idx != assign[i] ||
 551                         hwc->last_tag != box->tags[assign[i]])
 552                         uncore_assign_hw_event(box, event, assign[i]);
 553                 else if (i < box->n_events)
 554                         continue;
 555
 556                 if (hwc->state & PERF_HES_ARCH)
 557                         continue;
 558
 559                 uncore_pmu_event_start(event, 0);
 560         }
 561         box->n_events = n;
 562
 563         return 0;
 564 }
 565
 566 static void uncore_pmu_event_del(struct perf_event *event, int flags)
 567 {
 568         struct intel_uncore_box *box = uncore_event_to_box(event);
 569         int i;
 570
 571         uncore_pmu_event_stop(event, PERF_EF_UPDATE);
 572
 573         for (i = 0; i < box->n_events; i++) {
 574                 if (event == box->event_list[i]) {
 575                         uncore_put_event_constraint(box, event);
 576
 577                         for (++i; i < box->n_events; i++)
 578                                 box->event_list[i - 1] = box->event_list[i];
 579
 580                         --box->n_events;
 581                         break;
 582                 }
 583         }
 584
 585         event->hw.idx = -1;
 586         event->hw.last_tag = ~0ULL;
 587 }
 588
 589 void uncore_pmu_event_read(struct perf_event *event)
 590 {
 591         struct intel_uncore_box *box = uncore_event_to_box(event);
 592         uncore_perf_event_update(box, event);
 593 }
 594
 595 /*
 596  * validation ensures the group can be loaded onto the
 597  * PMU if it was the only group available.
 598  */
 599 static int uncore_validate_group(struct intel_uncore_pmu *pmu,
 600                                 struct perf_event *event)
 601 {
 602         struct perf_event *leader = event->group_leader;
 603         struct intel_uncore_box *fake_box;
 604         int ret = -EINVAL, n;
 605
 606         fake_box = uncore_alloc_box(pmu->type, NUMA_NO_NODE);
 607         if (!fake_box)
 608                 return -ENOMEM;
 609
 610         fake_box->pmu = pmu;
 611         /*
 612          * the event is not yet connected with its
 613          * siblings therefore we must first collect
 614          * existing siblings, then add the new event
 615          * before we can simulate the scheduling
 616          */
 617         n = uncore_collect_events(fake_box, leader, true);
 618         if (n < 0)
 619                 goto out;
 620
 621         fake_box->n_events = n;
 622         n = uncore_collect_events(fake_box, event, false);
 623         if (n < 0)
 624                 goto out;
 625
 626         fake_box->n_events = n;
 627
 628         ret = uncore_assign_events(fake_box, NULL, n);
 629 out:
 630         kfree(fake_box);
 631         return ret;
 632 }
 633
 634 static int uncore_pmu_event_init(struct perf_event *event)
 635 {
 636         struct intel_uncore_pmu *pmu;
 637         struct intel_uncore_box *box;
 638         struct hw_perf_event *hwc = &event->hw;
 639         int ret;
 640
 641         if (event->attr.type != event->pmu->type)
 642                 return -ENOENT;
 643
 644         pmu = uncore_event_to_pmu(event);
 645         /* no device found for this pmu */
 646         if (pmu->func_id < 0)
 647                 return -ENOENT;
 648
 649         /*
 650          * Uncore PMU does measure at all privilege level all the time.
 651          * So it doesn't make sense to specify any exclude bits.
 652          */
 653         if (event->attr.exclude_user || event->attr.exclude_kernel ||
 654                         event->attr.exclude_hv || event->attr.exclude_idle)
 655                 return -EINVAL;
 656
 657         /* Sampling not supported yet */
 658         if (hwc->sample_period)
 659                 return -EINVAL;
 660
 661         /*
 662          * Place all uncore events for a particular physical package
 663          * onto a single cpu
 664          */
 665         if (event->cpu < 0)
 666                 return -EINVAL;
 667         box = uncore_pmu_to_box(pmu, event->cpu);
 668         if (!box || box->cpu < 0)
 669                 return -EINVAL;
 670         event->cpu = box->cpu;
 671         event->pmu_private = box;
 672
 673         event->event_caps |= PERF_EV_CAP_READ_ACTIVE_PKG;
 674
 675         event->hw.idx = -1;
 676         event->hw.last_tag = ~0ULL;
 677         event->hw.extra_reg.idx = EXTRA_REG_NONE;
 678         event->hw.branch_reg.idx = EXTRA_REG_NONE;
 679
 680         if (event->attr.config == UNCORE_FIXED_EVENT) {
 681                 /* no fixed counter */
 682                 if (!pmu->type->fixed_ctl)
 683                         return -EINVAL;
 684                 /*
 685                  * if there is only one fixed counter, only the first pmu
 686                  * can access the fixed counter
 687                  */
 688                 if (pmu->type->single_fixed && pmu->pmu_idx > 0)
 689                         return -EINVAL;
 690
 691                 /* fixed counters have event field hardcoded to zero */
 692                 hwc->config = 0ULL;
 693         } else {
 694                 hwc->config = event->attr.config &
 695                               (pmu->type->event_mask | ((u64)pmu->type->event_mask_ext << 32));
 696                 if (pmu->type->ops->hw_config) {
 697                         ret = pmu->type->ops->hw_config(box, event);
 698                         if (ret)
 699                                 return ret;
 700                 }
 701         }
 702
 703         if (event->group_leader != event)
 704                 ret = uncore_validate_group(pmu, event);
 705         else
 706                 ret = 0;
 707
 708         return ret;
 709 }
 710
 711 static ssize_t uncore_get_attr_cpumask(struct device *dev,
 712                                 struct device_attribute *attr, char *buf)
 713 {
 714         return cpumap_print_to_pagebuf(true, buf, &uncore_cpu_mask);
 715 }
 716
 717 static DEVICE_ATTR(cpumask, S_IRUGO, uncore_get_attr_cpumask, NULL);
 718
 719 static struct attribute *uncore_pmu_attrs[] = {
 720         &dev_attr_cpumask.attr,
 721         NULL,
 722 };
 723
 724 static struct attribute_group uncore_pmu_attr_group = {
 725         .attrs = uncore_pmu_attrs,
 726 };
 727
 728 static int uncore_pmu_register(struct intel_uncore_pmu *pmu)
 729 {
 730         int ret;
 731
 732         if (!pmu->type->pmu) {
 733                 pmu->pmu = (struct pmu) {
 734                         .attr_groups    = pmu->type->attr_groups,
 735                         .task_ctx_nr    = perf_invalid_context,
 736                         .event_init     = uncore_pmu_event_init,
 737                         .add            = uncore_pmu_event_add,
 738                         .del            = uncore_pmu_event_del,
 739                         .start          = uncore_pmu_event_start,
 740                         .stop           = uncore_pmu_event_stop,
 741                         .read           = uncore_pmu_event_read,
 742                         .module         = THIS_MODULE,
 743                 };
 744         } else {
 745                 pmu->pmu = *pmu->type->pmu;
 746                 pmu->pmu.attr_groups = pmu->type->attr_groups;
 747         }
 748
 749         if (pmu->type->num_boxes == 1) {
 750                 if (strlen(pmu->type->name) > 0)
 751                         sprintf(pmu->name, "uncore_%s", pmu->type->name);
 752                 else
 753                         sprintf(pmu->name, "uncore");
 754         } else {
 755                 sprintf(pmu->name, "uncore_%s_%d", pmu->type->name,
 756                         pmu->pmu_idx);
 757         }
 758
 759         ret = perf_pmu_register(&pmu->pmu, pmu->name, -1);
 760         if (!ret)
 761                 pmu->registered = true;
 762         return ret;
 763 }
 764
 765 static void uncore_pmu_unregister(struct intel_uncore_pmu *pmu)
 766 {
 767         if (!pmu->registered)
 768                 return;
 769         perf_pmu_unregister(&pmu->pmu);
 770         pmu->registered = false;
 771 }
 772
 773 static void uncore_free_boxes(struct intel_uncore_pmu *pmu)
 774 {
 775         int pkg;
 776
 777         for (pkg = 0; pkg < max_packages; pkg++)
 778                 kfree(pmu->boxes[pkg]);
 779         kfree(pmu->boxes);
 780 }
 781
 782 static void uncore_type_exit(struct intel_uncore_type *type)
 783 {
 784         struct intel_uncore_pmu *pmu = type->pmus;
 785         int i;
 786
 787         if (pmu) {
 788                 for (i = 0; i < type->num_boxes; i++, pmu++) {
 789                         uncore_pmu_unregister(pmu);
 790                         uncore_free_boxes(pmu);
 791                 }
 792                 kfree(type->pmus);
 793                 type->pmus = NULL;
 794         }
 795         kfree(type->events_group);
 796         type->events_group = NULL;
 797 }
 798
 799 static void uncore_types_exit(struct intel_uncore_type **types)
 800 {
 801         for (; *types; types++)
 802                 uncore_type_exit(*types);
 803 }
 804
 805 static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
 806 {
 807         struct intel_uncore_pmu *pmus;
 808         struct attribute_group *attr_group;
 809         struct attribute **attrs;
 810         size_t size;
 811         int i, j;
 812
 813         pmus = kzalloc(sizeof(*pmus) * type->num_boxes, GFP_KERNEL);
 814         if (!pmus)
 815                 return -ENOMEM;
 816
 817         size = max_packages * sizeof(struct intel_uncore_box *);
 818
 819         for (i = 0; i < type->num_boxes; i++) {
 820                 pmus[i].func_id = setid ? i : -1;
 821                 pmus[i].pmu_idx = i;
 822                 pmus[i].type    = type;
 823                 pmus[i].boxes   = kzalloc(size, GFP_KERNEL);
 824                 if (!pmus[i].boxes)
 825                         return -ENOMEM;
 826         }
 827
 828         type->pmus = pmus;
 829         type->unconstrainted = (struct event_constraint)
 830                 __EVENT_CONSTRAINT(0, (1ULL << type->num_counters) - 1,
 831                                 0, type->num_counters, 0, 0);
 832
 833         if (type->event_descs) {
 834                 for (i = 0; type->event_descs[i].attr.attr.name; i++);
 835
 836                 attr_group = kzalloc(sizeof(struct attribute *) * (i + 1) +
 837                                         sizeof(*attr_group), GFP_KERNEL);
 838                 if (!attr_group)
 839                         return -ENOMEM;
 840
 841                 attrs = (struct attribute **)(attr_group + 1);
 842                 attr_group->name = "events";
 843                 attr_group->attrs = attrs;
 844
 845                 for (j = 0; j < i; j++)
 846                         attrs[j] = &type->event_descs[j].attr.attr;
 847
 848                 type->events_group = attr_group;
 849         }
 850
 851         type->pmu_group = &uncore_pmu_attr_group;
 852         return 0;
 853 }
 854
 855 static int __init
 856 uncore_types_init(struct intel_uncore_type **types, bool setid)
 857 {
 858         int ret;
 859
 860         for (; *types; types++) {
 861                 ret = uncore_type_init(*types, setid);
 862                 if (ret)
 863                         return ret;
 864         }
 865         return 0;
 866 }
 867
 868 /*
 869  * add a pci uncore device
 870  */
 871 static int uncore_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 872 {
 873         struct intel_uncore_type *type;
 874         struct intel_uncore_pmu *pmu = NULL;
 875         struct intel_uncore_box *box;
 876         int phys_id, pkg, ret;
 877
 878         phys_id = uncore_pcibus_to_physid(pdev->bus);
 879         if (phys_id < 0)
 880                 return -ENODEV;
 881
 882         pkg = topology_phys_to_logical_pkg(phys_id);
 883         if (pkg < 0)
 884                 return -EINVAL;
 885
 886         if (UNCORE_PCI_DEV_TYPE(id->driver_data) == UNCORE_EXTRA_PCI_DEV) {
 887                 int idx = UNCORE_PCI_DEV_IDX(id->driver_data);
 888
 889                 uncore_extra_pci_dev[pkg].dev[idx] = pdev;
 890                 pci_set_drvdata(pdev, NULL);
 891                 return 0;
 892         }
 893
 894         type = uncore_pci_uncores[UNCORE_PCI_DEV_TYPE(id->driver_data)];
 895
 896         /*
 897          * Some platforms, e.g.  Knights Landing, use a common PCI device ID
 898          * for multiple instances of an uncore PMU device type. We should check
 899          * PCI slot and func to indicate the uncore box.
 900          */
 901         if (id->driver_data & ~0xffff) {
 902                 struct pci_driver *pci_drv = pdev->driver;
 903                 const struct pci_device_id *ids = pci_drv->id_table;
 904                 unsigned int devfn;
 905
 906                 while (ids && ids->vendor) {
 907                         if ((ids->vendor == pdev->vendor) &&
 908                             (ids->device == pdev->device)) {
 909                                 devfn = PCI_DEVFN(UNCORE_PCI_DEV_DEV(ids->driver_data),
 910                                                   UNCORE_PCI_DEV_FUNC(ids->driver_data));
 911                                 if (devfn == pdev->devfn) {
 912                                         pmu = &type->pmus[UNCORE_PCI_DEV_IDX(ids->driver_data)];
 913                                         break;
 914                                 }
 915                         }
 916                         ids++;
 917                 }
 918                 if (pmu == NULL)
 919                         return -ENODEV;
 920         } else {
 921                 /*
 922                  * for performance monitoring unit with multiple boxes,
 923                  * each box has a different function id.
 924                  */
 925                 pmu = &type->pmus[UNCORE_PCI_DEV_IDX(id->driver_data)];
 926         }
 927
 928         if (WARN_ON_ONCE(pmu->boxes[pkg] != NULL))
 929                 return -EINVAL;
 930
 931         box = uncore_alloc_box(type, NUMA_NO_NODE);
 932         if (!box)
 933                 return -ENOMEM;
 934
 935         if (pmu->func_id < 0)
 936                 pmu->func_id = pdev->devfn;
 937         else
 938                 WARN_ON_ONCE(pmu->func_id != pdev->devfn);
 939
 940         atomic_inc(&box->refcnt);
 941         box->pci_phys_id = phys_id;
 942         box->pkgid = pkg;
 943         box->pci_dev = pdev;
 944         box->pmu = pmu;
 945         uncore_box_init(box);
 946         pci_set_drvdata(pdev, box);
 947
 948         pmu->boxes[pkg] = box;
 949         if (atomic_inc_return(&pmu->activeboxes) > 1)
 950                 return 0;
 951
 952         /* First active box registers the pmu */
 953         ret = uncore_pmu_register(pmu);
 954         if (ret) {
 955                 pci_set_drvdata(pdev, NULL);
 956                 pmu->boxes[pkg] = NULL;
 957                 uncore_box_exit(box);
 958                 kfree(box);
 959         }
 960         return ret;
 961 }
 962
 963 static void uncore_pci_remove(struct pci_dev *pdev)
 964 {
 965         struct intel_uncore_box *box;
 966         struct intel_uncore_pmu *pmu;
 967         int i, phys_id, pkg;
 968
 969         phys_id = uncore_pcibus_to_physid(pdev->bus);
 970         pkg = topology_phys_to_logical_pkg(phys_id);
 971
 972         box = pci_get_drvdata(pdev);
 973         if (!box) {
 974                 for (i = 0; i < UNCORE_EXTRA_PCI_DEV_MAX; i++) {
 975                         if (uncore_extra_pci_dev[pkg].dev[i] == pdev) {
 976                                 uncore_extra_pci_dev[pkg].dev[i] = NULL;
 977                                 break;
 978                         }
 979                 }
 980                 WARN_ON_ONCE(i >= UNCORE_EXTRA_PCI_DEV_MAX);
 981                 return;
 982         }
 983
 984         pmu = box->pmu;
 985         if (WARN_ON_ONCE(phys_id != box->pci_phys_id))
 986                 return;
 987
 988         pci_set_drvdata(pdev, NULL);
 989         pmu->boxes[pkg] = NULL;
 990         if (atomic_dec_return(&pmu->activeboxes) == 0)
 991                 uncore_pmu_unregister(pmu);
 992         uncore_box_exit(box);
 993         kfree(box);
 994 }
 995
 996 static int __init uncore_pci_init(void)
 997 {
 998         size_t size;
 999         int ret;
1000
1001         size = max_packages * sizeof(struct pci_extra_dev);
1002         uncore_extra_pci_dev = kzalloc(size, GFP_KERNEL);
1003         if (!uncore_extra_pci_dev) {
1004                 ret = -ENOMEM;
1005                 goto err;
1006         }
1007
1008         ret = uncore_types_init(uncore_pci_uncores, false);
1009         if (ret)
1010                 goto errtype;
1011
1012         uncore_pci_driver->probe = uncore_pci_probe;
1013         uncore_pci_driver->remove = uncore_pci_remove;
1014
1015         ret = pci_register_driver(uncore_pci_driver);
1016         if (ret)
1017                 goto errtype;
1018
1019         pcidrv_registered = true;
1020         return 0;
1021
1022 errtype:
1023         uncore_types_exit(uncore_pci_uncores);
1024         kfree(uncore_extra_pci_dev);
1025         uncore_extra_pci_dev = NULL;
1026         uncore_free_pcibus_map();
1027 err:
1028         uncore_pci_uncores = empty_uncore;
1029         return ret;
1030 }
1031
1032 static void uncore_pci_exit(void)
1033 {
1034         if (pcidrv_registered) {
1035                 pcidrv_registered = false;
1036                 pci_unregister_driver(uncore_pci_driver);
1037                 uncore_types_exit(uncore_pci_uncores);
1038                 kfree(uncore_extra_pci_dev);
1039                 uncore_free_pcibus_map();
1040         }
1041 }
1042
1043 static void uncore_change_type_ctx(struct intel_uncore_type *type, int old_cpu,
1044                                    int new_cpu)
1045 {
1046         struct intel_uncore_pmu *pmu = type->pmus;
1047         struct intel_uncore_box *box;
1048         int i, pkg;
1049
1050         pkg = topology_logical_package_id(old_cpu < 0 ? new_cpu : old_cpu);
1051         for (i = 0; i < type->num_boxes; i++, pmu++) {
1052                 box = pmu->boxes[pkg];
1053                 if (!box)
1054                         continue;
1055
1056                 if (old_cpu < 0) {
1057                         WARN_ON_ONCE(box->cpu != -1);
1058                         box->cpu = new_cpu;
1059                         continue;
1060                 }
1061
1062                 WARN_ON_ONCE(box->cpu != old_cpu);
1063                 box->cpu = -1;
1064                 if (new_cpu < 0)
1065                         continue;
1066
1067                 uncore_pmu_cancel_hrtimer(box);
1068                 perf_pmu_migrate_context(&pmu->pmu, old_cpu, new_cpu);
1069                 box->cpu = new_cpu;
1070         }
1071 }
1072
1073 static void uncore_change_context(struct intel_uncore_type **uncores,
1074                                   int old_cpu, int new_cpu)
1075 {
1076         for (; *uncores; uncores++)
1077                 uncore_change_type_ctx(*uncores, old_cpu, new_cpu);
1078 }
1079
1080 static int uncore_event_cpu_offline(unsigned int cpu)
1081 {
1082         struct intel_uncore_type *type, **types = uncore_msr_uncores;
1083         struct intel_uncore_pmu *pmu;
1084         struct intel_uncore_box *box;
1085         int i, pkg, target;
1086
1087         /* Check if exiting cpu is used for collecting uncore events */
1088         if (!cpumask_test_and_clear_cpu(cpu, &uncore_cpu_mask))
1089                 goto unref;
1090         /* Find a new cpu to collect uncore events */
1091         target = cpumask_any_but(topology_core_cpumask(cpu), cpu);
1092
1093         /* Migrate uncore events to the new target */
1094         if (target < nr_cpu_ids)
1095                 cpumask_set_cpu(target, &uncore_cpu_mask);
1096         else
1097                 target = -1;
1098
1099         uncore_change_context(uncore_msr_uncores, cpu, target);
1100         uncore_change_context(uncore_pci_uncores, cpu, target);
1101
1102 unref:
1103         /* Clear the references */
1104         pkg = topology_logical_package_id(cpu);
1105         for (; *types; types++) {
1106                 type = *types;
1107                 pmu = type->pmus;
1108                 for (i = 0; i < type->num_boxes; i++, pmu++) {
1109                         box = pmu->boxes[pkg];
1110                         if (box && atomic_dec_return(&box->refcnt) == 0)
1111                                 uncore_box_exit(box);
1112                 }
1113         }
1114         return 0;
1115 }
1116
1117 static int allocate_boxes(struct intel_uncore_type **types,
1118                          unsigned int pkg, unsigned int cpu)
1119 {
1120         struct intel_uncore_box *box, *tmp;
1121         struct intel_uncore_type *type;
1122         struct intel_uncore_pmu *pmu;
1123         LIST_HEAD(allocated);
1124         int i;
1125
1126         /* Try to allocate all required boxes */
1127         for (; *types; types++) {
1128                 type = *types;
1129                 pmu = type->pmus;
1130                 for (i = 0; i < type->num_boxes; i++, pmu++) {
1131                         if (pmu->boxes[pkg])
1132                                 continue;
1133                         box = uncore_alloc_box(type, cpu_to_node(cpu));
1134                         if (!box)
1135                                 goto cleanup;
1136                         box->pmu = pmu;
1137                         box->pkgid = pkg;
1138                         list_add(&box->active_list, &allocated);
1139                 }
1140         }
1141         /* Install them in the pmus */
1142         list_for_each_entry_safe(box, tmp, &allocated, active_list) {
1143                 list_del_init(&box->active_list);
1144                 box->pmu->boxes[pkg] = box;
1145         }
1146         return 0;
1147
1148 cleanup:
1149         list_for_each_entry_safe(box, tmp, &allocated, active_list) {
1150                 list_del_init(&box->active_list);
1151                 kfree(box);
1152         }
1153         return -ENOMEM;
1154 }
1155
1156 static int uncore_event_cpu_online(unsigned int cpu)
1157 {
1158         struct intel_uncore_type *type, **types = uncore_msr_uncores;
1159         struct intel_uncore_pmu *pmu;
1160         struct intel_uncore_box *box;
1161         int i, ret, pkg, target;
1162
1163         pkg = topology_logical_package_id(cpu);
1164         ret = allocate_boxes(types, pkg, cpu);
1165         if (ret)
1166                 return ret;
1167
1168         for (; *types; types++) {
1169                 type = *types;
1170                 pmu = type->pmus;
1171                 for (i = 0; i < type->num_boxes; i++, pmu++) {
1172                         box = pmu->boxes[pkg];
1173                         if (box && atomic_inc_return(&box->refcnt) == 1)
1174                                 uncore_box_init(box);
1175                 }
1176         }
1177
1178         /*
1179          * Check if there is an online cpu in the package
1180          * which collects uncore events already.
1181          */
1182         target = cpumask_any_and(&uncore_cpu_mask, topology_core_cpumask(cpu));
1183         if (target < nr_cpu_ids)
1184                 return 0;
1185
1186         cpumask_set_cpu(cpu, &uncore_cpu_mask);
1187
1188         uncore_change_context(uncore_msr_uncores, -1, cpu);
1189         uncore_change_context(uncore_pci_uncores, -1, cpu);
1190         return 0;
1191 }
1192
1193 static int __init type_pmu_register(struct intel_uncore_type *type)
1194 {
1195         int i, ret;
1196
1197         for (i = 0; i < type->num_boxes; i++) {
1198                 ret = uncore_pmu_register(&type->pmus[i]);
1199                 if (ret)
1200                         return ret;
1201         }
1202         return 0;
1203 }
1204
1205 static int __init uncore_msr_pmus_register(void)
1206 {
1207         struct intel_uncore_type **types = uncore_msr_uncores;
1208         int ret;
1209
1210         for (; *types; types++) {
1211                 ret = type_pmu_register(*types);
1212                 if (ret)
1213                         return ret;
1214         }
1215         return 0;
1216 }
1217
1218 static int __init uncore_cpu_init(void)
1219 {
1220         int ret;
1221
1222         ret = uncore_types_init(uncore_msr_uncores, true);
1223         if (ret)
1224                 goto err;
1225
1226         ret = uncore_msr_pmus_register();
1227         if (ret)
1228                 goto err;
1229         return 0;
1230 err:
1231         uncore_types_exit(uncore_msr_uncores);
1232         uncore_msr_uncores = empty_uncore;
1233         return ret;
1234 }
1235
1236 #define X86_UNCORE_MODEL_MATCH(model, init)     \
1237         { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)&init }
1238
1239 struct intel_uncore_init_fun {
1240         void    (*cpu_init)(void);
1241         int     (*pci_init)(void);
1242 };
1243
1244 static const struct intel_uncore_init_fun nhm_uncore_init __initconst = {
1245         .cpu_init = nhm_uncore_cpu_init,
1246 };
1247
1248 static const struct intel_uncore_init_fun snb_uncore_init __initconst = {
1249         .cpu_init = snb_uncore_cpu_init,
1250         .pci_init = snb_uncore_pci_init,
1251 };
1252
1253 static const struct intel_uncore_init_fun ivb_uncore_init __initconst = {
1254         .cpu_init = snb_uncore_cpu_init,
1255         .pci_init = ivb_uncore_pci_init,
1256 };
1257
1258 static const struct intel_uncore_init_fun hsw_uncore_init __initconst = {
1259         .cpu_init = snb_uncore_cpu_init,
1260         .pci_init = hsw_uncore_pci_init,
1261 };
1262
1263 static const struct intel_uncore_init_fun bdw_uncore_init __initconst = {
1264         .cpu_init = snb_uncore_cpu_init,
1265         .pci_init = bdw_uncore_pci_init,
1266 };
1267
1268 static const struct intel_uncore_init_fun snbep_uncore_init __initconst = {
1269         .cpu_init = snbep_uncore_cpu_init,
1270         .pci_init = snbep_uncore_pci_init,
1271 };
1272
1273 static const struct intel_uncore_init_fun nhmex_uncore_init __initconst = {
1274         .cpu_init = nhmex_uncore_cpu_init,
1275 };
1276
1277 static const struct intel_uncore_init_fun ivbep_uncore_init __initconst = {
1278         .cpu_init = ivbep_uncore_cpu_init,
1279         .pci_init = ivbep_uncore_pci_init,
1280 };
1281
1282 static const struct intel_uncore_init_fun hswep_uncore_init __initconst = {
1283         .cpu_init = hswep_uncore_cpu_init,
1284         .pci_init = hswep_uncore_pci_init,
1285 };
1286
1287 static const struct intel_uncore_init_fun bdx_uncore_init __initconst = {
1288         .cpu_init = bdx_uncore_cpu_init,
1289         .pci_init = bdx_uncore_pci_init,
1290 };
1291
1292 static const struct intel_uncore_init_fun knl_uncore_init __initconst = {
1293         .cpu_init = knl_uncore_cpu_init,
1294         .pci_init = knl_uncore_pci_init,
1295 };
1296
1297 static const struct intel_uncore_init_fun skl_uncore_init __initconst = {
1298         .cpu_init = skl_uncore_cpu_init,
1299         .pci_init = skl_uncore_pci_init,
1300 };
1301
1302 static const struct intel_uncore_init_fun skx_uncore_init __initconst = {
1303         .cpu_init = skx_uncore_cpu_init,
1304         .pci_init = skx_uncore_pci_init,
1305 };
1306
1307 static const struct x86_cpu_id intel_uncore_match[] __initconst = {
1308         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_NEHALEM_EP,     nhm_uncore_init),
1309         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_NEHALEM,        nhm_uncore_init),
1310         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_WESTMERE,       nhm_uncore_init),
1311         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_WESTMERE_EP,    nhm_uncore_init),
1312         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_SANDYBRIDGE,    snb_uncore_init),
1313         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_IVYBRIDGE,      ivb_uncore_init),
1314         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_HASWELL_CORE,   hsw_uncore_init),
1315         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_HASWELL_ULT,    hsw_uncore_init),
1316         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_HASWELL_GT3E,   hsw_uncore_init),
1317         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_BROADWELL_CORE, bdw_uncore_init),
1318         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_BROADWELL_GT3E, bdw_uncore_init),
1319         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_SANDYBRIDGE_X,  snbep_uncore_init),
1320         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_NEHALEM_EX,     nhmex_uncore_init),
1321         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_WESTMERE_EX,    nhmex_uncore_init),
1322         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_IVYBRIDGE_X,    ivbep_uncore_init),
1323         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_HASWELL_X,      hswep_uncore_init),
1324         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_BROADWELL_X,    bdx_uncore_init),
1325         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_BROADWELL_XEON_D, bdx_uncore_init),
1326         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_XEON_PHI_KNL,   knl_uncore_init),
1327         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_XEON_PHI_KNM,   knl_uncore_init),
1328         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_SKYLAKE_DESKTOP,skl_uncore_init),
1329         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_SKYLAKE_MOBILE, skl_uncore_init),
1330         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_SKYLAKE_X,      skx_uncore_init),
1331         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_KABYLAKE_MOBILE, skl_uncore_init),
1332         X86_UNCORE_MODEL_MATCH(INTEL_FAM6_KABYLAKE_DESKTOP, skl_uncore_init),
1333         {},
1334 };
1335
1336 MODULE_DEVICE_TABLE(x86cpu, intel_uncore_match);
1337
1338 static int __init intel_uncore_init(void)
1339 {
1340         const struct x86_cpu_id *id;
1341         struct intel_uncore_init_fun *uncore_init;
1342         int pret = 0, cret = 0, ret;
1343
1344         id = x86_match_cpu(intel_uncore_match);
1345         if (!id)
1346                 return -ENODEV;
1347
1348         if (boot_cpu_has(X86_FEATURE_HYPERVISOR))
1349                 return -ENODEV;
1350
1351         max_packages = topology_max_packages();
1352
1353         uncore_init = (struct intel_uncore_init_fun *)id->driver_data;
1354         if (uncore_init->pci_init) {
1355                 pret = uncore_init->pci_init();
1356                 if (!pret)
1357                         pret = uncore_pci_init();
1358         }
1359
1360         if (uncore_init->cpu_init) {
1361                 uncore_init->cpu_init();
1362                 cret = uncore_cpu_init();
1363         }
1364
1365         if (cret && pret)
1366                 return -ENODEV;
1367
1368         /* Install hotplug callbacks to setup the targets for each package */
1369         ret = cpuhp_setup_state(CPUHP_AP_PERF_X86_UNCORE_ONLINE,
1370                                 "perf/x86/intel/uncore:online",
1371                                 uncore_event_cpu_online,
1372                                 uncore_event_cpu_offline);
1373         if (ret)
1374                 goto err;
1375         return 0;
1376
1377 err:
1378         uncore_types_exit(uncore_msr_uncores);
1379         uncore_pci_exit();
1380         return ret;
1381 }
1382 module_init(intel_uncore_init);
1383
1384 static void __exit intel_uncore_exit(void)
1385 {
1386         cpuhp_remove_state(CPUHP_AP_PERF_X86_UNCORE_ONLINE);
1387         uncore_types_exit(uncore_msr_uncores);
1388         uncore_pci_exit();
1389 }
1390 module_exit(intel_uncore_exit);