arch/x86/events/intel/uncore_snb.c

   1 /* Nehalem/SandBridge/Haswell/Broadwell/Skylake uncore support */
   2 #include "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_U_IMC   0x1904
  12 #define PCI_DEVICE_ID_INTEL_SKL_Y_IMC   0x190c
  13 #define PCI_DEVICE_ID_INTEL_SKL_HD_IMC  0x1900
  14 #define PCI_DEVICE_ID_INTEL_SKL_HQ_IMC  0x1910
  15 #define PCI_DEVICE_ID_INTEL_SKL_SD_IMC  0x190f
  16 #define PCI_DEVICE_ID_INTEL_SKL_SQ_IMC  0x191f
  17
  18 /* SNB event control */
  19 #define SNB_UNC_CTL_EV_SEL_MASK                 0x000000ff
  20 #define SNB_UNC_CTL_UMASK_MASK                  0x0000ff00
  21 #define SNB_UNC_CTL_EDGE_DET                    (1 << 18)
  22 #define SNB_UNC_CTL_EN                          (1 << 22)
  23 #define SNB_UNC_CTL_INVERT                      (1 << 23)
  24 #define SNB_UNC_CTL_CMASK_MASK                  0x1f000000
  25 #define NHM_UNC_CTL_CMASK_MASK                  0xff000000
  26 #define NHM_UNC_FIXED_CTR_CTL_EN                (1 << 0)
  27
  28 #define SNB_UNC_RAW_EVENT_MASK                  (SNB_UNC_CTL_EV_SEL_MASK | \
  29                                                  SNB_UNC_CTL_UMASK_MASK | \
  30                                                  SNB_UNC_CTL_EDGE_DET | \
  31                                                  SNB_UNC_CTL_INVERT | \
  32                                                  SNB_UNC_CTL_CMASK_MASK)
  33
  34 #define NHM_UNC_RAW_EVENT_MASK                  (SNB_UNC_CTL_EV_SEL_MASK | \
  35                                                  SNB_UNC_CTL_UMASK_MASK | \
  36                                                  SNB_UNC_CTL_EDGE_DET | \
  37                                                  SNB_UNC_CTL_INVERT | \
  38                                                  NHM_UNC_CTL_CMASK_MASK)
  39
  40 /* SNB global control register */
  41 #define SNB_UNC_PERF_GLOBAL_CTL                 0x391
  42 #define SNB_UNC_FIXED_CTR_CTRL                  0x394
  43 #define SNB_UNC_FIXED_CTR                       0x395
  44
  45 /* SNB uncore global control */
  46 #define SNB_UNC_GLOBAL_CTL_CORE_ALL             ((1 << 4) - 1)
  47 #define SNB_UNC_GLOBAL_CTL_EN                   (1 << 29)
  48
  49 /* SNB Cbo register */
  50 #define SNB_UNC_CBO_0_PERFEVTSEL0               0x700
  51 #define SNB_UNC_CBO_0_PER_CTR0                  0x706
  52 #define SNB_UNC_CBO_MSR_OFFSET                  0x10
  53
  54 /* SNB ARB register */
  55 #define SNB_UNC_ARB_PER_CTR0                    0x3b0
  56 #define SNB_UNC_ARB_PERFEVTSEL0                 0x3b2
  57 #define SNB_UNC_ARB_MSR_OFFSET                  0x10
  58
  59 /* NHM global control register */
  60 #define NHM_UNC_PERF_GLOBAL_CTL                 0x391
  61 #define NHM_UNC_FIXED_CTR                       0x394
  62 #define NHM_UNC_FIXED_CTR_CTRL                  0x395
  63
  64 /* NHM uncore global control */
  65 #define NHM_UNC_GLOBAL_CTL_EN_PC_ALL            ((1ULL << 8) - 1)
  66 #define NHM_UNC_GLOBAL_CTL_EN_FC                (1ULL << 32)
  67
  68 /* NHM uncore register */
  69 #define NHM_UNC_PERFEVTSEL0                     0x3c0
  70 #define NHM_UNC_UNCORE_PMC0                     0x3b0
  71
  72 /* SKL uncore global control */
  73 #define SKL_UNC_PERF_GLOBAL_CTL                 0xe01
  74 #define SKL_UNC_GLOBAL_CTL_CORE_ALL             ((1 << 5) - 1)
  75
  76 DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
  77 DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
  78 DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
  79 DEFINE_UNCORE_FORMAT_ATTR(inv, inv, "config:23");
  80 DEFINE_UNCORE_FORMAT_ATTR(cmask5, cmask, "config:24-28");
  81 DEFINE_UNCORE_FORMAT_ATTR(cmask8, cmask, "config:24-31");
  82
  83 /* Sandy Bridge uncore support */
  84 static void snb_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
  85 {
  86         struct hw_perf_event *hwc = &event->hw;
  87
  88         if (hwc->idx < UNCORE_PMC_IDX_FIXED)
  89                 wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN);
  90         else
  91                 wrmsrl(hwc->config_base, SNB_UNC_CTL_EN);
  92 }
  93
  94 static void snb_uncore_msr_disable_event(struct intel_uncore_box *box, struct perf_event *event)
  95 {
  96         wrmsrl(event->hw.config_base, 0);
  97 }
  98
  99 static void snb_uncore_msr_init_box(struct intel_uncore_box *box)
 100 {
 101         if (box->pmu->pmu_idx == 0) {
 102                 wrmsrl(SNB_UNC_PERF_GLOBAL_CTL,
 103                         SNB_UNC_GLOBAL_CTL_EN | SNB_UNC_GLOBAL_CTL_CORE_ALL);
 104         }
 105 }
 106
 107 static void snb_uncore_msr_enable_box(struct intel_uncore_box *box)
 108 {
 109         wrmsrl(SNB_UNC_PERF_GLOBAL_CTL,
 110                 SNB_UNC_GLOBAL_CTL_EN | SNB_UNC_GLOBAL_CTL_CORE_ALL);
 111 }
 112
 113 static void snb_uncore_msr_exit_box(struct intel_uncore_box *box)
 114 {
 115         if (box->pmu->pmu_idx == 0)
 116                 wrmsrl(SNB_UNC_PERF_GLOBAL_CTL, 0);
 117 }
 118
 119 static struct uncore_event_desc snb_uncore_events[] = {
 120         INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0x00"),
 121         { /* end: all zeroes */ },
 122 };
 123
 124 static struct attribute *snb_uncore_formats_attr[] = {
 125         &format_attr_event.attr,
 126         &format_attr_umask.attr,
 127         &format_attr_edge.attr,
 128         &format_attr_inv.attr,
 129         &format_attr_cmask5.attr,
 130         NULL,
 131 };
 132
 133 static struct attribute_group snb_uncore_format_group = {
 134         .name           = "format",
 135         .attrs          = snb_uncore_formats_attr,
 136 };
 137
 138 static struct intel_uncore_ops snb_uncore_msr_ops = {
 139         .init_box       = snb_uncore_msr_init_box,
 140         .enable_box     = snb_uncore_msr_enable_box,
 141         .exit_box       = snb_uncore_msr_exit_box,
 142         .disable_event  = snb_uncore_msr_disable_event,
 143         .enable_event   = snb_uncore_msr_enable_event,
 144         .read_counter   = uncore_msr_read_counter,
 145 };
 146
 147 static struct event_constraint snb_uncore_arb_constraints[] = {
 148         UNCORE_EVENT_CONSTRAINT(0x80, 0x1),
 149         UNCORE_EVENT_CONSTRAINT(0x83, 0x1),
 150         EVENT_CONSTRAINT_END
 151 };
 152
 153 static struct intel_uncore_type snb_uncore_cbox = {
 154         .name           = "cbox",
 155         .num_counters   = 2,
 156         .num_boxes      = 4,
 157         .perf_ctr_bits  = 44,
 158         .fixed_ctr_bits = 48,
 159         .perf_ctr       = SNB_UNC_CBO_0_PER_CTR0,
 160         .event_ctl      = SNB_UNC_CBO_0_PERFEVTSEL0,
 161         .fixed_ctr      = SNB_UNC_FIXED_CTR,
 162         .fixed_ctl      = SNB_UNC_FIXED_CTR_CTRL,
 163         .single_fixed   = 1,
 164         .event_mask     = SNB_UNC_RAW_EVENT_MASK,
 165         .msr_offset     = SNB_UNC_CBO_MSR_OFFSET,
 166         .ops            = &snb_uncore_msr_ops,
 167         .format_group   = &snb_uncore_format_group,
 168         .event_descs    = snb_uncore_events,
 169 };
 170
 171 static struct intel_uncore_type snb_uncore_arb = {
 172         .name           = "arb",
 173         .num_counters   = 2,
 174         .num_boxes      = 1,
 175         .perf_ctr_bits  = 44,
 176         .perf_ctr       = SNB_UNC_ARB_PER_CTR0,
 177         .event_ctl      = SNB_UNC_ARB_PERFEVTSEL0,
 178         .event_mask     = SNB_UNC_RAW_EVENT_MASK,
 179         .msr_offset     = SNB_UNC_ARB_MSR_OFFSET,
 180         .constraints    = snb_uncore_arb_constraints,
 181         .ops            = &snb_uncore_msr_ops,
 182         .format_group   = &snb_uncore_format_group,
 183 };
 184
 185 static struct intel_uncore_type *snb_msr_uncores[] = {
 186         &snb_uncore_cbox,
 187         &snb_uncore_arb,
 188         NULL,
 189 };
 190
 191 void snb_uncore_cpu_init(void)
 192 {
 193         uncore_msr_uncores = snb_msr_uncores;
 194         if (snb_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
 195                 snb_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
 196 }
 197
 198 static void skl_uncore_msr_init_box(struct intel_uncore_box *box)
 199 {
 200         if (box->pmu->pmu_idx == 0) {
 201                 wrmsrl(SKL_UNC_PERF_GLOBAL_CTL,
 202                         SNB_UNC_GLOBAL_CTL_EN | SKL_UNC_GLOBAL_CTL_CORE_ALL);
 203         }
 204 }
 205
 206 static void skl_uncore_msr_enable_box(struct intel_uncore_box *box)
 207 {
 208         wrmsrl(SKL_UNC_PERF_GLOBAL_CTL,
 209                 SNB_UNC_GLOBAL_CTL_EN | SKL_UNC_GLOBAL_CTL_CORE_ALL);
 210 }
 211
 212 static void skl_uncore_msr_exit_box(struct intel_uncore_box *box)
 213 {
 214         if (box->pmu->pmu_idx == 0)
 215                 wrmsrl(SKL_UNC_PERF_GLOBAL_CTL, 0);
 216 }
 217
 218 static struct intel_uncore_ops skl_uncore_msr_ops = {
 219         .init_box       = skl_uncore_msr_init_box,
 220         .enable_box     = skl_uncore_msr_enable_box,
 221         .exit_box       = skl_uncore_msr_exit_box,
 222         .disable_event  = snb_uncore_msr_disable_event,
 223         .enable_event   = snb_uncore_msr_enable_event,
 224         .read_counter   = uncore_msr_read_counter,
 225 };
 226
 227 static struct intel_uncore_type skl_uncore_cbox = {
 228         .name           = "cbox",
 229         .num_counters   = 4,
 230         .num_boxes      = 5,
 231         .perf_ctr_bits  = 44,
 232         .fixed_ctr_bits = 48,
 233         .perf_ctr       = SNB_UNC_CBO_0_PER_CTR0,
 234         .event_ctl      = SNB_UNC_CBO_0_PERFEVTSEL0,
 235         .fixed_ctr      = SNB_UNC_FIXED_CTR,
 236         .fixed_ctl      = SNB_UNC_FIXED_CTR_CTRL,
 237         .single_fixed   = 1,
 238         .event_mask     = SNB_UNC_RAW_EVENT_MASK,
 239         .msr_offset     = SNB_UNC_CBO_MSR_OFFSET,
 240         .ops            = &skl_uncore_msr_ops,
 241         .format_group   = &snb_uncore_format_group,
 242         .event_descs    = snb_uncore_events,
 243 };
 244
 245 static struct intel_uncore_type *skl_msr_uncores[] = {
 246         &skl_uncore_cbox,
 247         &snb_uncore_arb,
 248         NULL,
 249 };
 250
 251 void skl_uncore_cpu_init(void)
 252 {
 253         uncore_msr_uncores = skl_msr_uncores;
 254         if (skl_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
 255                 skl_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
 256         snb_uncore_arb.ops = &skl_uncore_msr_ops;
 257 }
 258
 259 enum {
 260         SNB_PCI_UNCORE_IMC,
 261 };
 262
 263 static struct uncore_event_desc snb_uncore_imc_events[] = {
 264         INTEL_UNCORE_EVENT_DESC(data_reads,  "event=0x01"),
 265         INTEL_UNCORE_EVENT_DESC(data_reads.scale, "6.103515625e-5"),
 266         INTEL_UNCORE_EVENT_DESC(data_reads.unit, "MiB"),
 267
 268         INTEL_UNCORE_EVENT_DESC(data_writes, "event=0x02"),
 269         INTEL_UNCORE_EVENT_DESC(data_writes.scale, "6.103515625e-5"),
 270         INTEL_UNCORE_EVENT_DESC(data_writes.unit, "MiB"),
 271
 272         { /* end: all zeroes */ },
 273 };
 274
 275 #define SNB_UNCORE_PCI_IMC_EVENT_MASK           0xff
 276 #define SNB_UNCORE_PCI_IMC_BAR_OFFSET           0x48
 277
 278 /* page size multiple covering all config regs */
 279 #define SNB_UNCORE_PCI_IMC_MAP_SIZE             0x6000
 280
 281 #define SNB_UNCORE_PCI_IMC_DATA_READS           0x1
 282 #define SNB_UNCORE_PCI_IMC_DATA_READS_BASE      0x5050
 283 #define SNB_UNCORE_PCI_IMC_DATA_WRITES          0x2
 284 #define SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE     0x5054
 285 #define SNB_UNCORE_PCI_IMC_CTR_BASE             SNB_UNCORE_PCI_IMC_DATA_READS_BASE
 286
 287 static struct attribute *snb_uncore_imc_formats_attr[] = {
 288         &format_attr_event.attr,
 289         NULL,
 290 };
 291
 292 static struct attribute_group snb_uncore_imc_format_group = {
 293         .name = "format",
 294         .attrs = snb_uncore_imc_formats_attr,
 295 };
 296
 297 static void snb_uncore_imc_init_box(struct intel_uncore_box *box)
 298 {
 299         struct pci_dev *pdev = box->pci_dev;
 300         int where = SNB_UNCORE_PCI_IMC_BAR_OFFSET;
 301         resource_size_t addr;
 302         u32 pci_dword;
 303
 304         pci_read_config_dword(pdev, where, &pci_dword);
 305         addr = pci_dword;
 306
 307 #ifdef CONFIG_PHYS_ADDR_T_64BIT
 308         pci_read_config_dword(pdev, where + 4, &pci_dword);
 309         addr |= ((resource_size_t)pci_dword << 32);
 310 #endif
 311
 312         addr &= ~(PAGE_SIZE - 1);
 313
 314         box->io_addr = ioremap(addr, SNB_UNCORE_PCI_IMC_MAP_SIZE);
 315         box->hrtimer_duration = UNCORE_SNB_IMC_HRTIMER_INTERVAL;
 316 }
 317
 318 static void snb_uncore_imc_exit_box(struct intel_uncore_box *box)
 319 {
 320         iounmap(box->io_addr);
 321 }
 322
 323 static void snb_uncore_imc_enable_box(struct intel_uncore_box *box)
 324 {}
 325
 326 static void snb_uncore_imc_disable_box(struct intel_uncore_box *box)
 327 {}
 328
 329 static void snb_uncore_imc_enable_event(struct intel_uncore_box *box, struct perf_event *event)
 330 {}
 331
 332 static void snb_uncore_imc_disable_event(struct intel_uncore_box *box, struct perf_event *event)
 333 {}
 334
 335 static u64 snb_uncore_imc_read_counter(struct intel_uncore_box *box, struct perf_event *event)
 336 {
 337         struct hw_perf_event *hwc = &event->hw;
 338
 339         return (u64)*(unsigned int *)(box->io_addr + hwc->event_base);
 340 }
 341
 342 /*
 343  * custom event_init() function because we define our own fixed, free
 344  * running counters, so we do not want to conflict with generic uncore
 345  * logic. Also simplifies processing
 346  */
 347 static int snb_uncore_imc_event_init(struct perf_event *event)
 348 {
 349         struct intel_uncore_pmu *pmu;
 350         struct intel_uncore_box *box;
 351         struct hw_perf_event *hwc = &event->hw;
 352         u64 cfg = event->attr.config & SNB_UNCORE_PCI_IMC_EVENT_MASK;
 353         int idx, base;
 354
 355         if (event->attr.type != event->pmu->type)
 356                 return -ENOENT;
 357
 358         pmu = uncore_event_to_pmu(event);
 359         /* no device found for this pmu */
 360         if (pmu->func_id < 0)
 361                 return -ENOENT;
 362
 363         /* Sampling not supported yet */
 364         if (hwc->sample_period)
 365                 return -EINVAL;
 366
 367         /* unsupported modes and filters */
 368         if (event->attr.exclude_user   ||
 369             event->attr.exclude_kernel ||
 370             event->attr.exclude_hv     ||
 371             event->attr.exclude_idle   ||
 372             event->attr.exclude_host   ||
 373             event->attr.exclude_guest  ||
 374             event->attr.sample_period) /* no sampling */
 375                 return -EINVAL;
 376
 377         /*
 378          * Place all uncore events for a particular physical package
 379          * onto a single cpu
 380          */
 381         if (event->cpu < 0)
 382                 return -EINVAL;
 383
 384         /* check only supported bits are set */
 385         if (event->attr.config & ~SNB_UNCORE_PCI_IMC_EVENT_MASK)
 386                 return -EINVAL;
 387
 388         box = uncore_pmu_to_box(pmu, event->cpu);
 389         if (!box || box->cpu < 0)
 390                 return -EINVAL;
 391
 392         event->cpu = box->cpu;
 393         event->pmu_private = box;
 394
 395         event->event_caps |= PERF_EV_CAP_READ_ACTIVE_PKG;
 396
 397         event->hw.idx = -1;
 398         event->hw.last_tag = ~0ULL;
 399         event->hw.extra_reg.idx = EXTRA_REG_NONE;
 400         event->hw.branch_reg.idx = EXTRA_REG_NONE;
 401         /*
 402          * check event is known (whitelist, determines counter)
 403          */
 404         switch (cfg) {
 405         case SNB_UNCORE_PCI_IMC_DATA_READS:
 406                 base = SNB_UNCORE_PCI_IMC_DATA_READS_BASE;
 407                 idx = UNCORE_PMC_IDX_FIXED;
 408                 break;
 409         case SNB_UNCORE_PCI_IMC_DATA_WRITES:
 410                 base = SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE;
 411                 idx = UNCORE_PMC_IDX_FIXED + 1;
 412                 break;
 413         default:
 414                 return -EINVAL;
 415         }
 416
 417         /* must be done before validate_group */
 418         event->hw.event_base = base;
 419         event->hw.config = cfg;
 420         event->hw.idx = idx;
 421
 422         /* no group validation needed, we have free running counters */
 423
 424         return 0;
 425 }
 426
 427 static int snb_uncore_imc_hw_config(struct intel_uncore_box *box, struct perf_event *event)
 428 {
 429         return 0;
 430 }
 431
 432 static void snb_uncore_imc_event_start(struct perf_event *event, int flags)
 433 {
 434         struct intel_uncore_box *box = uncore_event_to_box(event);
 435         u64 count;
 436
 437         if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
 438                 return;
 439
 440         event->hw.state = 0;
 441         box->n_active++;
 442
 443         list_add_tail(&event->active_entry, &box->active_list);
 444
 445         count = snb_uncore_imc_read_counter(box, event);
 446         local64_set(&event->hw.prev_count, count);
 447
 448         if (box->n_active == 1)
 449                 uncore_pmu_start_hrtimer(box);
 450 }
 451
 452 static void snb_uncore_imc_event_stop(struct perf_event *event, int flags)
 453 {
 454         struct intel_uncore_box *box = uncore_event_to_box(event);
 455         struct hw_perf_event *hwc = &event->hw;
 456
 457         if (!(hwc->state & PERF_HES_STOPPED)) {
 458                 box->n_active--;
 459
 460                 WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED);
 461                 hwc->state |= PERF_HES_STOPPED;
 462
 463                 list_del(&event->active_entry);
 464
 465                 if (box->n_active == 0)
 466                         uncore_pmu_cancel_hrtimer(box);
 467         }
 468
 469         if ((flags & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) {
 470                 /*
 471                  * Drain the remaining delta count out of a event
 472                  * that we are disabling:
 473                  */
 474                 uncore_perf_event_update(box, event);
 475                 hwc->state |= PERF_HES_UPTODATE;
 476         }
 477 }
 478
 479 static int snb_uncore_imc_event_add(struct perf_event *event, int flags)
 480 {
 481         struct intel_uncore_box *box = uncore_event_to_box(event);
 482         struct hw_perf_event *hwc = &event->hw;
 483
 484         if (!box)
 485                 return -ENODEV;
 486
 487         hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
 488         if (!(flags & PERF_EF_START))
 489                 hwc->state |= PERF_HES_ARCH;
 490
 491         snb_uncore_imc_event_start(event, 0);
 492
 493         box->n_events++;
 494
 495         return 0;
 496 }
 497
 498 static void snb_uncore_imc_event_del(struct perf_event *event, int flags)
 499 {
 500         struct intel_uncore_box *box = uncore_event_to_box(event);
 501         int i;
 502
 503         snb_uncore_imc_event_stop(event, PERF_EF_UPDATE);
 504
 505         for (i = 0; i < box->n_events; i++) {
 506                 if (event == box->event_list[i]) {
 507                         --box->n_events;
 508                         break;
 509                 }
 510         }
 511 }
 512
 513 int snb_pci2phy_map_init(int devid)
 514 {
 515         struct pci_dev *dev = NULL;
 516         struct pci2phy_map *map;
 517         int bus, segment;
 518
 519         dev = pci_get_device(PCI_VENDOR_ID_INTEL, devid, dev);
 520         if (!dev)
 521                 return -ENOTTY;
 522
 523         bus = dev->bus->number;
 524         segment = pci_domain_nr(dev->bus);
 525
 526         raw_spin_lock(&pci2phy_map_lock);
 527         map = __find_pci2phy_map(segment);
 528         if (!map) {
 529                 raw_spin_unlock(&pci2phy_map_lock);
 530                 pci_dev_put(dev);
 531                 return -ENOMEM;
 532         }
 533         map->pbus_to_physid[bus] = 0;
 534         raw_spin_unlock(&pci2phy_map_lock);
 535
 536         pci_dev_put(dev);
 537
 538         return 0;
 539 }
 540
 541 static struct pmu snb_uncore_imc_pmu = {
 542         .task_ctx_nr    = perf_invalid_context,
 543         .event_init     = snb_uncore_imc_event_init,
 544         .add            = snb_uncore_imc_event_add,
 545         .del            = snb_uncore_imc_event_del,
 546         .start          = snb_uncore_imc_event_start,
 547         .stop           = snb_uncore_imc_event_stop,
 548         .read           = uncore_pmu_event_read,
 549 };
 550
 551 static struct intel_uncore_ops snb_uncore_imc_ops = {
 552         .init_box       = snb_uncore_imc_init_box,
 553         .exit_box       = snb_uncore_imc_exit_box,
 554         .enable_box     = snb_uncore_imc_enable_box,
 555         .disable_box    = snb_uncore_imc_disable_box,
 556         .disable_event  = snb_uncore_imc_disable_event,
 557         .enable_event   = snb_uncore_imc_enable_event,
 558         .hw_config      = snb_uncore_imc_hw_config,
 559         .read_counter   = snb_uncore_imc_read_counter,
 560 };
 561
 562 static struct intel_uncore_type snb_uncore_imc = {
 563         .name           = "imc",
 564         .num_counters   = 2,
 565         .num_boxes      = 1,
 566         .fixed_ctr_bits = 32,
 567         .fixed_ctr      = SNB_UNCORE_PCI_IMC_CTR_BASE,
 568         .event_descs    = snb_uncore_imc_events,
 569         .format_group   = &snb_uncore_imc_format_group,
 570         .perf_ctr       = SNB_UNCORE_PCI_IMC_DATA_READS_BASE,
 571         .event_mask     = SNB_UNCORE_PCI_IMC_EVENT_MASK,
 572         .ops            = &snb_uncore_imc_ops,
 573         .pmu            = &snb_uncore_imc_pmu,
 574 };
 575
 576 static struct intel_uncore_type *snb_pci_uncores[] = {
 577         [SNB_PCI_UNCORE_IMC]    = &snb_uncore_imc,
 578         NULL,
 579 };
 580
 581 static const struct pci_device_id snb_uncore_pci_ids[] = {
 582         { /* IMC */
 583                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SNB_IMC),
 584                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 585         },
 586         { /* end: all zeroes */ },
 587 };
 588
 589 static const struct pci_device_id ivb_uncore_pci_ids[] = {
 590         { /* IMC */
 591                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_IMC),
 592                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 593         },
 594         { /* IMC */
 595                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_E3_IMC),
 596                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 597         },
 598         { /* end: all zeroes */ },
 599 };
 600
 601 static const struct pci_device_id hsw_uncore_pci_ids[] = {
 602         { /* IMC */
 603                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HSW_IMC),
 604                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 605         },
 606         { /* IMC */
 607                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HSW_U_IMC),
 608                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 609         },
 610         { /* end: all zeroes */ },
 611 };
 612
 613 static const struct pci_device_id bdw_uncore_pci_ids[] = {
 614         { /* IMC */
 615                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BDW_IMC),
 616                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 617         },
 618         { /* end: all zeroes */ },
 619 };
 620
 621 static const struct pci_device_id skl_uncore_pci_ids[] = {
 622         { /* IMC */
 623                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_Y_IMC),
 624                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 625         },
 626         { /* IMC */
 627                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_U_IMC),
 628                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 629         },
 630         { /* IMC */
 631                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_HD_IMC),
 632                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 633         },
 634         { /* IMC */
 635                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_HQ_IMC),
 636                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 637         },
 638         { /* IMC */
 639                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_SD_IMC),
 640                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 641         },
 642         { /* IMC */
 643                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_SQ_IMC),
 644                 .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0),
 645         },
 646
 647         { /* end: all zeroes */ },
 648 };
 649
 650 static struct pci_driver snb_uncore_pci_driver = {
 651         .name           = "snb_uncore",
 652         .id_table       = snb_uncore_pci_ids,
 653 };
 654
 655 static struct pci_driver ivb_uncore_pci_driver = {
 656         .name           = "ivb_uncore",
 657         .id_table       = ivb_uncore_pci_ids,
 658 };
 659
 660 static struct pci_driver hsw_uncore_pci_driver = {
 661         .name           = "hsw_uncore",
 662         .id_table       = hsw_uncore_pci_ids,
 663 };
 664
 665 static struct pci_driver bdw_uncore_pci_driver = {
 666         .name           = "bdw_uncore",
 667         .id_table       = bdw_uncore_pci_ids,
 668 };
 669
 670 static struct pci_driver skl_uncore_pci_driver = {
 671         .name           = "skl_uncore",
 672         .id_table       = skl_uncore_pci_ids,
 673 };
 674
 675 struct imc_uncore_pci_dev {
 676         __u32 pci_id;
 677         struct pci_driver *driver;
 678 };
 679 #define IMC_DEV(a, d) \
 680         { .pci_id = PCI_DEVICE_ID_INTEL_##a, .driver = (d) }
 681
 682 static const struct imc_uncore_pci_dev desktop_imc_pci_ids[] = {
 683         IMC_DEV(SNB_IMC, &snb_uncore_pci_driver),
 684         IMC_DEV(IVB_IMC, &ivb_uncore_pci_driver),    /* 3rd Gen Core processor */
 685         IMC_DEV(IVB_E3_IMC, &ivb_uncore_pci_driver), /* Xeon E3-1200 v2/3rd Gen Core processor */
 686         IMC_DEV(HSW_IMC, &hsw_uncore_pci_driver),    /* 4th Gen Core Processor */
 687         IMC_DEV(HSW_U_IMC, &hsw_uncore_pci_driver),  /* 4th Gen Core ULT Mobile Processor */
 688         IMC_DEV(BDW_IMC, &bdw_uncore_pci_driver),    /* 5th Gen Core U */
 689         IMC_DEV(SKL_Y_IMC, &skl_uncore_pci_driver),  /* 6th Gen Core Y */
 690         IMC_DEV(SKL_U_IMC, &skl_uncore_pci_driver),  /* 6th Gen Core U */
 691         IMC_DEV(SKL_HD_IMC, &skl_uncore_pci_driver),  /* 6th Gen Core H Dual Core */
 692         IMC_DEV(SKL_HQ_IMC, &skl_uncore_pci_driver),  /* 6th Gen Core H Quad Core */
 693         IMC_DEV(SKL_SD_IMC, &skl_uncore_pci_driver),  /* 6th Gen Core S Dual Core */
 694         IMC_DEV(SKL_SQ_IMC, &skl_uncore_pci_driver),  /* 6th Gen Core S Quad Core */
 695         {  /* end marker */ }
 696 };
 697
 698
 699 #define for_each_imc_pci_id(x, t) \
 700         for (x = (t); (x)->pci_id; x++)
 701
 702 static struct pci_driver *imc_uncore_find_dev(void)
 703 {
 704         const struct imc_uncore_pci_dev *p;
 705         int ret;
 706
 707         for_each_imc_pci_id(p, desktop_imc_pci_ids) {
 708                 ret = snb_pci2phy_map_init(p->pci_id);
 709                 if (ret == 0)
 710                         return p->driver;
 711         }
 712         return NULL;
 713 }
 714
 715 static int imc_uncore_pci_init(void)
 716 {
 717         struct pci_driver *imc_drv = imc_uncore_find_dev();
 718
 719         if (!imc_drv)
 720                 return -ENODEV;
 721
 722         uncore_pci_uncores = snb_pci_uncores;
 723         uncore_pci_driver = imc_drv;
 724
 725         return 0;
 726 }
 727
 728 int snb_uncore_pci_init(void)
 729 {
 730         return imc_uncore_pci_init();
 731 }
 732
 733 int ivb_uncore_pci_init(void)
 734 {
 735         return imc_uncore_pci_init();
 736 }
 737 int hsw_uncore_pci_init(void)
 738 {
 739         return imc_uncore_pci_init();
 740 }
 741
 742 int bdw_uncore_pci_init(void)
 743 {
 744         return imc_uncore_pci_init();
 745 }
 746
 747 int skl_uncore_pci_init(void)
 748 {
 749         return imc_uncore_pci_init();
 750 }
 751
 752 /* end of Sandy Bridge uncore support */
 753
 754 /* Nehalem uncore support */
 755 static void nhm_uncore_msr_disable_box(struct intel_uncore_box *box)
 756 {
 757         wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, 0);
 758 }
 759
 760 static void nhm_uncore_msr_enable_box(struct intel_uncore_box *box)
 761 {
 762         wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, NHM_UNC_GLOBAL_CTL_EN_PC_ALL | NHM_UNC_GLOBAL_CTL_EN_FC);
 763 }
 764
 765 static void nhm_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
 766 {
 767         struct hw_perf_event *hwc = &event->hw;
 768
 769         if (hwc->idx < UNCORE_PMC_IDX_FIXED)
 770                 wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN);
 771         else
 772                 wrmsrl(hwc->config_base, NHM_UNC_FIXED_CTR_CTL_EN);
 773 }
 774
 775 static struct attribute *nhm_uncore_formats_attr[] = {
 776         &format_attr_event.attr,
 777         &format_attr_umask.attr,
 778         &format_attr_edge.attr,
 779         &format_attr_inv.attr,
 780         &format_attr_cmask8.attr,
 781         NULL,
 782 };
 783
 784 static struct attribute_group nhm_uncore_format_group = {
 785         .name = "format",
 786         .attrs = nhm_uncore_formats_attr,
 787 };
 788
 789 static struct uncore_event_desc nhm_uncore_events[] = {
 790         INTEL_UNCORE_EVENT_DESC(clockticks,                "event=0xff,umask=0x00"),
 791         INTEL_UNCORE_EVENT_DESC(qmc_writes_full_any,       "event=0x2f,umask=0x0f"),
 792         INTEL_UNCORE_EVENT_DESC(qmc_normal_reads_any,      "event=0x2c,umask=0x0f"),
 793         INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_reads,     "event=0x20,umask=0x01"),
 794         INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_writes,    "event=0x20,umask=0x02"),
 795         INTEL_UNCORE_EVENT_DESC(qhl_request_remote_reads,  "event=0x20,umask=0x04"),
 796         INTEL_UNCORE_EVENT_DESC(qhl_request_remote_writes, "event=0x20,umask=0x08"),
 797         INTEL_UNCORE_EVENT_DESC(qhl_request_local_reads,   "event=0x20,umask=0x10"),
 798         INTEL_UNCORE_EVENT_DESC(qhl_request_local_writes,  "event=0x20,umask=0x20"),
 799         { /* end: all zeroes */ },
 800 };
 801
 802 static struct intel_uncore_ops nhm_uncore_msr_ops = {
 803         .disable_box    = nhm_uncore_msr_disable_box,
 804         .enable_box     = nhm_uncore_msr_enable_box,
 805         .disable_event  = snb_uncore_msr_disable_event,
 806         .enable_event   = nhm_uncore_msr_enable_event,
 807         .read_counter   = uncore_msr_read_counter,
 808 };
 809
 810 static struct intel_uncore_type nhm_uncore = {
 811         .name           = "",
 812         .num_counters   = 8,
 813         .num_boxes      = 1,
 814         .perf_ctr_bits  = 48,
 815         .fixed_ctr_bits = 48,
 816         .event_ctl      = NHM_UNC_PERFEVTSEL0,
 817         .perf_ctr       = NHM_UNC_UNCORE_PMC0,
 818         .fixed_ctr      = NHM_UNC_FIXED_CTR,
 819         .fixed_ctl      = NHM_UNC_FIXED_CTR_CTRL,
 820         .event_mask     = NHM_UNC_RAW_EVENT_MASK,
 821         .event_descs    = nhm_uncore_events,
 822         .ops            = &nhm_uncore_msr_ops,
 823         .format_group   = &nhm_uncore_format_group,
 824 };
 825
 826 static struct intel_uncore_type *nhm_msr_uncores[] = {
 827         &nhm_uncore,
 828         NULL,
 829 };
 830
 831 void nhm_uncore_cpu_init(void)
 832 {
 833         uncore_msr_uncores = nhm_msr_uncores;
 834 }
 835
 836 /* end of Nehalem uncore support */