arch/x86/kernel/cpu/perf_event_intel_uncore_snb.c

   1 /* Nehalem/SandBridge/Haswell uncore support */
   2 #include "perf_event_intel_uncore.h"
   3
   4 /* Uncore IMC PCI IDs */
   5 #define PCI_DEVICE_ID_INTEL_SNB_IMC     0x0100
   6 #define PCI_DEVICE_ID_INTEL_IVB_IMC     0x0154
   7 #define PCI_DEVICE_ID_INTEL_IVB_E3_IMC  0x0150
   8 #define PCI_DEVICE_ID_INTEL_HSW_IMC     0x0c00
   9 #define PCI_DEVICE_ID_INTEL_HSW_U_IMC   0x0a04
  10 #define PCI_DEVICE_ID_INTEL_BDW_IMC     0x1604
  11 #define PCI_DEVICE_ID_INTEL_SKL_IMC     0x191f
  12
  13 /* SNB event control */
  14 #define SNB_UNC_CTL_EV_SEL_MASK                 0x000000ff
  15 #define SNB_UNC_CTL_UMASK_MASK                  0x0000ff00
  16 #define SNB_UNC_CTL_EDGE_DET                    (1 << 18)
  17 #define SNB_UNC_CTL_EN                          (1 << 22)
  18 #define SNB_UNC_CTL_INVERT                      (1 << 23)
  19 #define SNB_UNC_CTL_CMASK_MASK                  0x1f000000
  20 #define NHM_UNC_CTL_CMASK_MASK                  0xff000000
  21 #define NHM_UNC_FIXED_CTR_CTL_EN                (1 << 0)
  22
  23 #define SNB_UNC_RAW_EVENT_MASK                  (SNB_UNC_CTL_EV_SEL_MASK | \
  24                                                  SNB_UNC_CTL_UMASK_MASK | \
  25                                                  SNB_UNC_CTL_EDGE_DET | \
  26                                                  SNB_UNC_CTL_INVERT | \
  27                                                  SNB_UNC_CTL_CMASK_MASK)
  28
  29 #define NHM_UNC_RAW_EVENT_MASK                  (SNB_UNC_CTL_EV_SEL_MASK | \
  30                                                  SNB_UNC_CTL_UMASK_MASK | \
  31                                                  SNB_UNC_CTL_EDGE_DET | \
  32                                                  SNB_UNC_CTL_INVERT | \
  33                                                  NHM_UNC_CTL_CMASK_MASK)
  34
  35 /* SNB global control register */
  36 #define SNB_UNC_PERF_GLOBAL_CTL                 0x391
  37 #define SNB_UNC_FIXED_CTR_CTRL                  0x394
  38 #define SNB_UNC_FIXED_CTR                       0x395
  39
  40 /* SNB uncore global control */
  41 #define SNB_UNC_GLOBAL_CTL_CORE_ALL             ((1 << 4) - 1)
  42 #define SNB_UNC_GLOBAL_CTL_EN                   (1 << 29)
  43
  44 /* SNB Cbo register */
  45 #define SNB_UNC_CBO_0_PERFEVTSEL0               0x700
  46 #define SNB_UNC_CBO_0_PER_CTR0                  0x706
  47 #define SNB_UNC_CBO_MSR_OFFSET                  0x10
  48
  49 /* SNB ARB register */
  50 #define SNB_UNC_ARB_PER_CTR0                    0x3b0
  51 #define SNB_UNC_ARB_PERFEVTSEL0                 0x3b2
  52 #define SNB_UNC_ARB_MSR_OFFSET                  0x10
  53
  54 /* NHM global control register */
  55 #define NHM_UNC_PERF_GLOBAL_CTL                 0x391
  56 #define NHM_UNC_FIXED_CTR                       0x394
  57 #define NHM_UNC_FIXED_CTR_CTRL                  0x395
  58
  59 /* NHM uncore global control */
  60 #define NHM_UNC_GLOBAL_CTL_EN_PC_ALL            ((1ULL << 8) - 1)
  61 #define NHM_UNC_GLOBAL_CTL_EN_FC                (1ULL << 32)
  62
  63 /* NHM uncore register */
  64 #define NHM_UNC_PERFEVTSEL0                     0x3c0
  65 #define NHM_UNC_UNCORE_PMC0                     0x3b0
  66
  67 DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
  68 DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
  69 DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
  70 DEFINE_UNCORE_FORMAT_ATTR(inv, inv, "config:23");
  71 DEFINE_UNCORE_FORMAT_ATTR(cmask5, cmask, "config:24-28");
  72 DEFINE_UNCORE_FORMAT_ATTR(cmask8, cmask, "config:24-31");
  73
  74 /* Sandy Bridge uncore support */
  75 static void snb_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
  76 {
  77         struct hw_perf_event *hwc = &event->hw;
  78
  79         if (hwc->idx < UNCORE_PMC_IDX_FIXED)
  80                 wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN);
  81         else
  82                 wrmsrl(hwc->config_base, SNB_UNC_CTL_EN);
  83 }
  84
  85 static void snb_uncore_msr_disable_event(struct intel_uncore_box *box, struct perf_event *event)
  86 {
  87         wrmsrl(event->hw.config_base, 0);
  88 }
  89
  90 static void snb_uncore_msr_init_box(struct intel_uncore_box *box)
  91 {
  92         if (box->pmu->pmu_idx == 0) {
  93                 wrmsrl(SNB_UNC_PERF_GLOBAL_CTL,
  94                         SNB_UNC_GLOBAL_CTL_EN | SNB_UNC_GLOBAL_CTL_CORE_ALL);
  95         }
  96 }
  97
  98 static struct uncore_event_desc snb_uncore_events[] = {
  99         INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0x00"),
 100         { /* end: all zeroes */ },
 101 };
 102
 103 static struct attribute *snb_uncore_formats_attr[] = {
 104         &format_attr_event.attr,
 105         &format_attr_umask.attr,
 106         &format_attr_edge.attr,
 107         &format_attr_inv.attr,
 108         &format_attr_cmask5.attr,
 109         NULL,
 110 };
 111
 112 static struct attribute_group snb_uncore_format_group = {
 113         .name           = "format",
 114         .attrs          = snb_uncore_formats_attr,
 115 };
 116
 117 static struct intel_uncore_ops snb_uncore_msr_ops = {
 118         .init_box       = snb_uncore_msr_init_box,
 119         .disable_event  = snb_uncore_msr_disable_event,
 120         .enable_event   = snb_uncore_msr_enable_event,
 121         .read_counter   = uncore_msr_read_counter,
 122 };
 123
 124 static struct event_constraint snb_uncore_arb_constraints[] = {
 125         UNCORE_EVENT_CONSTRAINT(0x80, 0x1),
 126         UNCORE_EVENT_CONSTRAINT(0x83, 0x1),
 127         EVENT_CONSTRAINT_END
 128 };
 129
 130 static struct intel_uncore_type snb_uncore_cbox = {
 131         .name           = "cbox",
 132         .num_counters   = 2,
 133         .num_boxes      = 4,
 134         .perf_ctr_bits  = 44,
 135         .fixed_ctr_bits = 48,
 136         .perf_ctr       = SNB_UNC_CBO_0_PER_CTR0,
 137         .event_ctl      = SNB_UNC_CBO_0_PERFEVTSEL0,
 138         .fixed_ctr      = SNB_UNC_FIXED_CTR,
 139         .fixed_ctl      = SNB_UNC_FIXED_CTR_CTRL,
 140         .single_fixed   = 1,
 141         .event_mask     = SNB_UNC_RAW_EVENT_MASK,
 142         .msr_offset     = SNB_UNC_CBO_MSR_OFFSET,
 143         .ops            = &snb_uncore_msr_ops,
 144         .format_group   = &snb_uncore_format_group,
 145         .event_descs    = snb_uncore_events,
 146 };
 147
 148 static struct intel_uncore_type snb_uncore_arb = {
 149         .name           = "arb",
 150         .num_counters   = 2,
 151         .num_boxes      = 1,
 152         .perf_ctr_bits  = 44,
 153         .perf_ctr       = SNB_UNC_ARB_PER_CTR0,
 154         .event_ctl      = SNB_UNC_ARB_PERFEVTSEL0,
 155         .event_mask     = SNB_UNC_RAW_EVENT_MASK,
 156         .msr_offset     = SNB_UNC_ARB_MSR_OFFSET,
 157         .constraints    = snb_uncore_arb_constraints,
 158         .ops            = &snb_uncore_msr_ops,
 159         .format_group   = &snb_uncore_format_group,
 160 };
 161
 162 static struct intel_uncore_type *snb_msr_uncores[] = {
 163         &snb_uncore_cbox,
 164         &snb_uncore_arb,
 165         NULL,
 166 };
 167
 168 void snb_uncore_cpu_init(void)
 169 {
 170         uncore_msr_uncores = snb_msr_uncores;
 171         if (snb_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
 172                 snb_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
 173 }
 174
 175 enum {
 176         SNB_PCI_UNCORE_IMC,
 177 };
 178
 179 static struct uncore_event_desc snb_uncore_imc_events[] = {
 180         INTEL_UNCORE_EVENT_DESC(data_reads,  "event=0x01"),
 181         INTEL_UNCORE_EVENT_DESC(data_reads.scale, "6.103515625e-5"),
 182         INTEL_UNCORE_EVENT_DESC(data_reads.unit, "MiB"),
 183
 184         INTEL_UNCORE_EVENT_DESC(data_writes, "event=0x02"),
 185         INTEL_UNCORE_EVENT_DESC(data_writes.scale, "6.103515625e-5"),
 186         INTEL_UNCORE_EVENT_DESC(data_writes.unit, "MiB"),
 187
 188         { /* end: all zeroes */ },
 189 };
 190
 191 #define SNB_UNCORE_PCI_IMC_EVENT_MASK           0xff
 192 #define SNB_UNCORE_PCI_IMC_BAR_OFFSET           0x48
 193
 194 /* page size multiple covering all config regs */
 195 #define SNB_UNCORE_PCI_IMC_MAP_SIZE             0x6000
 196
 197 #define SNB_UNCORE_PCI_IMC_DATA_READS           0x1
 198 #define SNB_UNCORE_PCI_IMC_DATA_READS_BASE      0x5050
 199 #define SNB_UNCORE_PCI_IMC_DATA_WRITES          0x2
 200 #define SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE     0x5054
 201 #define SNB_UNCORE_PCI_IMC_CTR_BASE             SNB_UNCORE_PCI_IMC_DATA_READS_BASE
 202
 203 static struct attribute *snb_uncore_imc_formats_attr[] = {
 204         &format_attr_event.attr,
 205         NULL,
 206 };
 207
 208 static struct attribute_group snb_uncore_imc_format_group = {
 209         .name = "format",
 210         .attrs = snb_uncore_imc_formats_attr,
 211 };
 212
 213 static void snb_uncore_imc_init_box(struct intel_uncore_box *box)
 214 {
 215         struct pci_dev *pdev = box->pci_dev;
 216         int where = SNB_UNCORE_PCI_IMC_BAR_OFFSET;
 217         resource_size_t addr;
 218         u32 pci_dword;
 219
 220         pci_read_config_dword(pdev, where, &pci_dword);
 221         addr = pci_dword;
 222
 223 #ifdef CONFIG_PHYS_ADDR_T_64BIT
 224         pci_read_config_dword(pdev, where + 4, &pci_dword);
 225         addr |= ((resource_size_t)pci_dword << 32);
 226 #endif
 227
 228         addr &= ~(PAGE_SIZE - 1);
 229
 230         box->io_addr = ioremap(addr, SNB_UNCORE_PCI_IMC_MAP_SIZE);
 231         box->hrtimer_duration = UNCORE_SNB_IMC_HRTIMER_INTERVAL;
 232 }
 233
 234 static void snb_uncore_imc_enable_box(struct intel_uncore_box *box)
 235 {}
 236
 237 static void snb_uncore_imc_disable_box(struct intel_uncore_box *box)
 238 {}
 239
 240 static void snb_uncore_imc_enable_event(struct intel_uncore_box *box, struct perf_event *event)
 241 {}
 242
 243 static void snb_uncore_imc_disable_event(struct intel_uncore_box *box, struct perf_event *event)
 244 {}
 245
 246 static u64 snb_uncore_imc_read_counter(struct intel_uncore_box *box, struct perf_event *event)
 247 {
 248         struct hw_perf_event *hwc = &event->hw;
 249
 250         return (u64)*(unsigned int *)(box->io_addr + hwc->event_base);
 251 }
 252
 253 /*
 254  * custom event_init() function because we define our own fixed, free
 255  * running counters, so we do not want to conflict with generic uncore
 256  * logic. Also simplifies processing
 257  */
 258 static int snb_uncore_imc_event_init(struct perf_event *event)
 259 {
 260         struct intel_uncore_pmu *pmu;
 261         struct intel_uncore_box *box;
 262         struct hw_perf_event *hwc = &event->hw;
 263         u64 cfg = event->attr.config & SNB_UNCORE_PCI_IMC_EVENT_MASK;
 264         int idx, base;
 265
 266         if (event->attr.type != event->pmu->type)
 267                 return -ENOENT;
 268
 269         pmu = uncore_event_to_pmu(event);
 270         /* no device found for this pmu */
 271         if (pmu->func_id < 0)
 272                 return -ENOENT;
 273
 274         /* Sampling not supported yet */
 275         if (hwc->sample_period)
 276                 return -EINVAL;
 277
 278         /* unsupported modes and filters */
 279         if (event->attr.exclude_user   ||
 280             event->attr.exclude_kernel ||
 281             event->attr.exclude_hv     ||
 282             event->attr.exclude_idle   ||
 283             event->attr.exclude_host   ||
 284             event->attr.exclude_guest  ||
 285             event->attr.sample_period) /* no sampling */
 286                 return -EINVAL;
 287
 288         /*
 289          * Place all uncore events for a particular physical package
 290          * onto a single cpu
 291          */
 292         if (event->cpu < 0)
 293                 return -EINVAL;
 294
 295         /* check only supported bits are set */
 296         if (event->attr.config & ~SNB_UNCORE_PCI_IMC_EVENT_MASK)
 297                 return -EINVAL;
 298
 299         box = uncore_pmu_to_box(pmu, event->cpu);
 300         if (!box || box->cpu < 0)
 301                 return -EINVAL;
 302
 303         event->cpu = box->cpu;
 304
 305         event->hw.idx = -1;
 306         event->hw.last_tag = ~0ULL;
 307         event->hw.extra_reg.idx = EXTRA_REG_NONE;
 308         event->hw.branch_reg.idx = EXTRA_REG_NONE;
 309         /*
 310          * check event is known (whitelist, determines counter)
 311          */
 312         switch (cfg) {
 313         case SNB_UNCORE_PCI_IMC_DATA_READS:
 314                 base = SNB_UNCORE_PCI_IMC_DATA_READS_BASE;
 315                 idx = UNCORE_PMC_IDX_FIXED;
 316                 break;
 317         case SNB_UNCORE_PCI_IMC_DATA_WRITES:
 318                 base = SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE;
 319                 idx = UNCORE_PMC_IDX_FIXED + 1;
 320                 break;
 321         default:
 322                 return -EINVAL;
 323         }
 324
 325         /* must be done before validate_group */
 326         event->hw.event_base = base;
 327         event->hw.config = cfg;
 328         event->hw.idx = idx;
 329
 330         /* no group validation needed, we have free running counters */
 331
 332         return 0;
 333 }
 334
 335 static int snb_uncore_imc_hw_config(struct intel_uncore_box *box, struct perf_event *event)
 336 {
 337         return 0;
 338 }
 339
 340 static void snb_uncore_imc_event_start(struct perf_event *event, int flags)
 341 {
 342         struct intel_uncore_box *box = uncore_event_to_box(event);
 343         u64 count;
 344
 345         if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
 346                 return;
 347
 348         event->hw.state = 0;
 349         box->n_active++;
 350
 351         list_add_tail(&event->active_entry, &box->active_list);
 352
 353         count = snb_uncore_imc_read_counter(box, event);
 354         local64_set(&event->hw.prev_count, count);
 355
 356         if (box->n_active == 1)
 357                 uncore_pmu_start_hrtimer(box);
 358 }
 359
 360 static void snb_uncore_imc_event_stop(struct perf_event *event, int flags)
 361 {
 362         struct intel_uncore_box *box = uncore_event_to_box(event);
 363         struct hw_perf_event *hwc = &event->hw;
 364
 365         if (!(hwc->state & PERF_HES_STOPPED)) {
 366                 box->n_active--;
 367
 368                 WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED);
 369                 hwc->state |= PERF_HES_STOPPED;
 370
 371                 list_del(&event->active_entry);
 372
 373                 if (box->n_active == 0)
 374                         uncore_pmu_cancel_hrtimer(box);
 375         }
 376
 377         if ((flags & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) {
 378                 /*
 379                  * Drain the remaining delta count out of a event
 380                  * that we are disabling:
 381                  */
 382                 uncore_perf_event_update(box, event);
 383                 hwc->state |= PERF_HES_UPTODATE;
 384         }
 385 }
 386
 387 static int snb_uncore_imc_event_add(struct perf_event *event, int flags)
 388 {
 389         struct intel_uncore_box *box = uncore_event_to_box(event);
 390         struct hw_perf_event *hwc = &event->hw;
 391
 392         if (!box)
 393                 return -ENODEV;
 394
 395         hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
 396         if (!(flags & PERF_EF_START))
 397                 hwc->state |= PERF_HES_ARCH;
 398
 399         snb_uncore_imc_event_start(event, 0);
 400
 401         box->n_events++;
 402
 403         return 0;
 404 }
 405
 406 static void snb_uncore_imc_event_del(struct perf_event *event, int flags)
 407 {
 408         struct intel_uncore_box *box = uncore_event_to_box(event);
 409         int i;
 410
 411         snb_uncore_imc_event_stop(event, PERF_EF_UPDATE);
 412
 413         for (i = 0; i < box->n_events; i++) {
 414                 if (event == box->event_list[i]) {
 415                         --box->n_events;
 416                         break;
 417                 }
 418         }
 419 }
 420
 421 int snb_pci2phy_map_init(int devid)
 422 {
 423         struct pci_dev *dev = NULL;
 424         struct pci2phy_map *map;
 425         int bus, segment;
 426
 427         dev = pci_get_device(PCI_VENDOR_ID_INTEL, devid, dev);
 428         if (!dev)
 429                 return -ENOTTY;
 430
 431         bus = dev->bus->number;
 432         segment = pci_domain_nr(dev->bus);
 433
 434         raw_spin_lock(&pci2phy_map_lock);
 435         map = __find_pci2phy_map(segment);
 436         if (!map) {
 437                 raw_spin_unlock(&pci2phy_map_lock);
 438                 pci_dev_put(dev);
 439                 return -ENOMEM;
 440         }
 441         map->pbus_to_physid[bus] = 0;
 442         raw_spin_unlock(&pci2phy_map_lock);
 443
 444         pci_dev_put(dev);
 445
 446         return 0;
 447 }
 448
 449 static struct pmu snb_uncore_imc_pmu = {
 450         .task_ctx_nr    = perf_invalid_context,
 451         .event_init     = snb_uncore_imc_event_init,
 452         .add            = snb_uncore_imc_event_add,
 453         .del            = snb_uncore_imc_event_del,
 454         .start          = snb_uncore_imc_event_start,
 455         .stop           = snb_uncore_imc_event_stop,
 456         .read           = uncore_pmu_event_read,
 457 };
 458
 459 static struct intel_uncore_ops snb_uncore_imc_ops = {
 460         .init_box       = snb_uncore_imc_init_box,
 461         .enable_box     = snb_uncore_imc_enable_box,
 462         .disable_box    = snb_uncore_imc_disable_box,
 463         .disable_event  = snb_uncore_imc_disable_event,
 464         .enable_event   = snb_uncore_imc_enable_event,
 465         .hw_config      = snb_uncore_imc_hw_config,
 466         .read_counter   = snb_uncore_imc_read_counter,
 467 };
 468
 469 static struct intel_uncore_type snb_uncore_imc = {
 470         .name           = "imc",
 471         .num_counters   = 2,
 472         .num_boxes      = 1,
 473         .fixed_ctr_bits = 32,
 474         .fixed_ctr      = SNB_UNCORE_PCI_IMC_CTR_BASE,
 475         .event_descs    = snb_uncore_imc_events,
 476         .format_group   = &snb_uncore_imc_format_group,
 477         .perf_ctr       = SNB_UNCORE_PCI_IMC_DATA_READS_BASE,
 478         .event_mask     = SNB_UNCORE_PCI_IMC_EVENT_MASK,
 479         .ops            = &snb_uncore_imc_ops,
 480         .pmu            = &snb_uncore_imc_pmu,
 481 };
 482
 483 static struct intel_uncore_type *snb_pci_uncores[] = {
 484         [SNB_PCI_UNCORE_IMC]    = &snb_uncore_imc,
 485         NULL,
 486 };
 487
 488 static const struct pci_device_id snb_uncore_pci_ids[] = {
 489         { /* IMC */
 490                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SNB_IMC),
 491                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 492         },
 493         { /* end: all zeroes */ },
 494 };
 495
 496 static const struct pci_device_id ivb_uncore_pci_ids[] = {
 497         { /* IMC */
 498                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_IMC),
 499                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 500         },
 501         { /* IMC */
 502                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_E3_IMC),
 503                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 504         },
 505         { /* end: all zeroes */ },
 506 };
 507
 508 static const struct pci_device_id hsw_uncore_pci_ids[] = {
 509         { /* IMC */
 510                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HSW_IMC),
 511                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 512         },
 513         { /* IMC */
 514                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HSW_U_IMC),
 515                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 516         },
 517         { /* end: all zeroes */ },
 518 };
 519
 520 static const struct pci_device_id bdw_uncore_pci_ids[] = {
 521         { /* IMC */
 522                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BDW_IMC),
 523                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 524         },
 525         { /* end: all zeroes */ },
 526 };
 527
 528 static const struct pci_device_id skl_uncore_pci_ids[] = {
 529         { /* IMC */
 530                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_IMC),
 531                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 532         },
 533         { /* end: all zeroes */ },
 534 };
 535
 536 static struct pci_driver snb_uncore_pci_driver = {
 537         .name           = "snb_uncore",
 538         .id_table       = snb_uncore_pci_ids,
 539 };
 540
 541 static struct pci_driver ivb_uncore_pci_driver = {
 542         .name           = "ivb_uncore",
 543         .id_table       = ivb_uncore_pci_ids,
 544 };
 545
 546 static struct pci_driver hsw_uncore_pci_driver = {
 547         .name           = "hsw_uncore",
 548         .id_table       = hsw_uncore_pci_ids,
 549 };
 550
 551 static struct pci_driver bdw_uncore_pci_driver = {
 552         .name           = "bdw_uncore",
 553         .id_table       = bdw_uncore_pci_ids,
 554 };
 555
 556 static struct pci_driver skl_uncore_pci_driver = {
 557         .name           = "skl_uncore",
 558         .id_table       = skl_uncore_pci_ids,
 559 };
 560
 561 struct imc_uncore_pci_dev {
 562         __u32 pci_id;
 563         struct pci_driver *driver;
 564 };
 565 #define IMC_DEV(a, d) \
 566         { .pci_id = PCI_DEVICE_ID_INTEL_##a, .driver = (d) }
 567
 568 static const struct imc_uncore_pci_dev desktop_imc_pci_ids[] = {
 569         IMC_DEV(SNB_IMC, &snb_uncore_pci_driver),
 570         IMC_DEV(IVB_IMC, &ivb_uncore_pci_driver),    /* 3rd Gen Core processor */
 571         IMC_DEV(IVB_E3_IMC, &ivb_uncore_pci_driver), /* Xeon E3-1200 v2/3rd Gen Core processor */
 572         IMC_DEV(HSW_IMC, &hsw_uncore_pci_driver),    /* 4th Gen Core Processor */
 573         IMC_DEV(HSW_U_IMC, &hsw_uncore_pci_driver),  /* 4th Gen Core ULT Mobile Processor */
 574         IMC_DEV(BDW_IMC, &bdw_uncore_pci_driver),    /* 5th Gen Core U */
 575         IMC_DEV(SKL_IMC, &skl_uncore_pci_driver),    /* 6th Gen Core */
 576         {  /* end marker */ }
 577 };
 578
 579
 580 #define for_each_imc_pci_id(x, t) \
 581         for (x = (t); (x)->pci_id; x++)
 582
 583 static struct pci_driver *imc_uncore_find_dev(void)
 584 {
 585         const struct imc_uncore_pci_dev *p;
 586         int ret;
 587
 588         for_each_imc_pci_id(p, desktop_imc_pci_ids) {
 589                 ret = snb_pci2phy_map_init(p->pci_id);
 590                 if (ret == 0)
 591                         return p->driver;
 592         }
 593         return NULL;
 594 }
 595
 596 static int imc_uncore_pci_init(void)
 597 {
 598         struct pci_driver *imc_drv = imc_uncore_find_dev();
 599
 600         if (!imc_drv)
 601                 return -ENODEV;
 602
 603         uncore_pci_uncores = snb_pci_uncores;
 604         uncore_pci_driver = imc_drv;
 605
 606         return 0;
 607 }
 608
 609 int snb_uncore_pci_init(void)
 610 {
 611         return imc_uncore_pci_init();
 612 }
 613
 614 int ivb_uncore_pci_init(void)
 615 {
 616         return imc_uncore_pci_init();
 617 }
 618 int hsw_uncore_pci_init(void)
 619 {
 620         return imc_uncore_pci_init();
 621 }
 622
 623 int bdw_uncore_pci_init(void)
 624 {
 625         return imc_uncore_pci_init();
 626 }
 627
 628 int skl_uncore_pci_init(void)
 629 {
 630         return imc_uncore_pci_init();
 631 }
 632
 633 /* end of Sandy Bridge uncore support */
 634
 635 /* Nehalem uncore support */
 636 static void nhm_uncore_msr_disable_box(struct intel_uncore_box *box)
 637 {
 638         wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, 0);
 639 }
 640
 641 static void nhm_uncore_msr_enable_box(struct intel_uncore_box *box)
 642 {
 643         wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, NHM_UNC_GLOBAL_CTL_EN_PC_ALL | NHM_UNC_GLOBAL_CTL_EN_FC);
 644 }
 645
 646 static void nhm_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
 647 {
 648         struct hw_perf_event *hwc = &event->hw;
 649
 650         if (hwc->idx < UNCORE_PMC_IDX_FIXED)
 651                 wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN);
 652         else
 653                 wrmsrl(hwc->config_base, NHM_UNC_FIXED_CTR_CTL_EN);
 654 }
 655
 656 static struct attribute *nhm_uncore_formats_attr[] = {
 657         &format_attr_event.attr,
 658         &format_attr_umask.attr,
 659         &format_attr_edge.attr,
 660         &format_attr_inv.attr,
 661         &format_attr_cmask8.attr,
 662         NULL,
 663 };
 664
 665 static struct attribute_group nhm_uncore_format_group = {
 666         .name = "format",
 667         .attrs = nhm_uncore_formats_attr,
 668 };
 669
 670 static struct uncore_event_desc nhm_uncore_events[] = {
 671         INTEL_UNCORE_EVENT_DESC(clockticks,                "event=0xff,umask=0x00"),
 672         INTEL_UNCORE_EVENT_DESC(qmc_writes_full_any,       "event=0x2f,umask=0x0f"),
 673         INTEL_UNCORE_EVENT_DESC(qmc_normal_reads_any,      "event=0x2c,umask=0x0f"),
 674         INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_reads,     "event=0x20,umask=0x01"),
 675         INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_writes,    "event=0x20,umask=0x02"),
 676         INTEL_UNCORE_EVENT_DESC(qhl_request_remote_reads,  "event=0x20,umask=0x04"),
 677         INTEL_UNCORE_EVENT_DESC(qhl_request_remote_writes, "event=0x20,umask=0x08"),
 678         INTEL_UNCORE_EVENT_DESC(qhl_request_local_reads,   "event=0x20,umask=0x10"),
 679         INTEL_UNCORE_EVENT_DESC(qhl_request_local_writes,  "event=0x20,umask=0x20"),
 680         { /* end: all zeroes */ },
 681 };
 682
 683 static struct intel_uncore_ops nhm_uncore_msr_ops = {
 684         .disable_box    = nhm_uncore_msr_disable_box,
 685         .enable_box     = nhm_uncore_msr_enable_box,
 686         .disable_event  = snb_uncore_msr_disable_event,
 687         .enable_event   = nhm_uncore_msr_enable_event,
 688         .read_counter   = uncore_msr_read_counter,
 689 };
 690
 691 static struct intel_uncore_type nhm_uncore = {
 692         .name           = "",
 693         .num_counters   = 8,
 694         .num_boxes      = 1,
 695         .perf_ctr_bits  = 48,
 696         .fixed_ctr_bits = 48,
 697         .event_ctl      = NHM_UNC_PERFEVTSEL0,
 698         .perf_ctr       = NHM_UNC_UNCORE_PMC0,
 699         .fixed_ctr      = NHM_UNC_FIXED_CTR,
 700         .fixed_ctl      = NHM_UNC_FIXED_CTR_CTRL,
 701         .event_mask     = NHM_UNC_RAW_EVENT_MASK,
 702         .event_descs    = nhm_uncore_events,
 703         .ops            = &nhm_uncore_msr_ops,
 704         .format_group   = &nhm_uncore_format_group,
 705 };
 706
 707 static struct intel_uncore_type *nhm_msr_uncores[] = {
 708         &nhm_uncore,
 709         NULL,
 710 };
 711
 712 void nhm_uncore_cpu_init(void)
 713 {
 714         uncore_msr_uncores = nhm_msr_uncores;
 715 }
 716
 717 /* end of Nehalem uncore support */