linux/arch/x86/kernel/cpu/perf_event_intel_uncore_nhmex.c
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   1/* Nehalem-EX/Westmere-EX uncore support */
   2#include "perf_event_intel_uncore.h"
   3
   4/* NHM-EX event control */
   5#define NHMEX_PMON_CTL_EV_SEL_MASK      0x000000ff
   6#define NHMEX_PMON_CTL_UMASK_MASK       0x0000ff00
   7#define NHMEX_PMON_CTL_EN_BIT0          (1 << 0)
   8#define NHMEX_PMON_CTL_EDGE_DET         (1 << 18)
   9#define NHMEX_PMON_CTL_PMI_EN           (1 << 20)
  10#define NHMEX_PMON_CTL_EN_BIT22         (1 << 22)
  11#define NHMEX_PMON_CTL_INVERT           (1 << 23)
  12#define NHMEX_PMON_CTL_TRESH_MASK       0xff000000
  13#define NHMEX_PMON_RAW_EVENT_MASK       (NHMEX_PMON_CTL_EV_SEL_MASK | \
  14                                         NHMEX_PMON_CTL_UMASK_MASK | \
  15                                         NHMEX_PMON_CTL_EDGE_DET | \
  16                                         NHMEX_PMON_CTL_INVERT | \
  17                                         NHMEX_PMON_CTL_TRESH_MASK)
  18
  19/* NHM-EX Ubox */
  20#define NHMEX_U_MSR_PMON_GLOBAL_CTL             0xc00
  21#define NHMEX_U_MSR_PMON_CTR                    0xc11
  22#define NHMEX_U_MSR_PMON_EV_SEL                 0xc10
  23
  24#define NHMEX_U_PMON_GLOBAL_EN                  (1 << 0)
  25#define NHMEX_U_PMON_GLOBAL_PMI_CORE_SEL        0x0000001e
  26#define NHMEX_U_PMON_GLOBAL_EN_ALL              (1 << 28)
  27#define NHMEX_U_PMON_GLOBAL_RST_ALL             (1 << 29)
  28#define NHMEX_U_PMON_GLOBAL_FRZ_ALL             (1 << 31)
  29
  30#define NHMEX_U_PMON_RAW_EVENT_MASK             \
  31                (NHMEX_PMON_CTL_EV_SEL_MASK |   \
  32                 NHMEX_PMON_CTL_EDGE_DET)
  33
  34/* NHM-EX Cbox */
  35#define NHMEX_C0_MSR_PMON_GLOBAL_CTL            0xd00
  36#define NHMEX_C0_MSR_PMON_CTR0                  0xd11
  37#define NHMEX_C0_MSR_PMON_EV_SEL0               0xd10
  38#define NHMEX_C_MSR_OFFSET                      0x20
  39
  40/* NHM-EX Bbox */
  41#define NHMEX_B0_MSR_PMON_GLOBAL_CTL            0xc20
  42#define NHMEX_B0_MSR_PMON_CTR0                  0xc31
  43#define NHMEX_B0_MSR_PMON_CTL0                  0xc30
  44#define NHMEX_B_MSR_OFFSET                      0x40
  45#define NHMEX_B0_MSR_MATCH                      0xe45
  46#define NHMEX_B0_MSR_MASK                       0xe46
  47#define NHMEX_B1_MSR_MATCH                      0xe4d
  48#define NHMEX_B1_MSR_MASK                       0xe4e
  49
  50#define NHMEX_B_PMON_CTL_EN                     (1 << 0)
  51#define NHMEX_B_PMON_CTL_EV_SEL_SHIFT           1
  52#define NHMEX_B_PMON_CTL_EV_SEL_MASK            \
  53                (0x1f << NHMEX_B_PMON_CTL_EV_SEL_SHIFT)
  54#define NHMEX_B_PMON_CTR_SHIFT          6
  55#define NHMEX_B_PMON_CTR_MASK           \
  56                (0x3 << NHMEX_B_PMON_CTR_SHIFT)
  57#define NHMEX_B_PMON_RAW_EVENT_MASK             \
  58                (NHMEX_B_PMON_CTL_EV_SEL_MASK | \
  59                 NHMEX_B_PMON_CTR_MASK)
  60
  61/* NHM-EX Sbox */
  62#define NHMEX_S0_MSR_PMON_GLOBAL_CTL            0xc40
  63#define NHMEX_S0_MSR_PMON_CTR0                  0xc51
  64#define NHMEX_S0_MSR_PMON_CTL0                  0xc50
  65#define NHMEX_S_MSR_OFFSET                      0x80
  66#define NHMEX_S0_MSR_MM_CFG                     0xe48
  67#define NHMEX_S0_MSR_MATCH                      0xe49
  68#define NHMEX_S0_MSR_MASK                       0xe4a
  69#define NHMEX_S1_MSR_MM_CFG                     0xe58
  70#define NHMEX_S1_MSR_MATCH                      0xe59
  71#define NHMEX_S1_MSR_MASK                       0xe5a
  72
  73#define NHMEX_S_PMON_MM_CFG_EN                  (0x1ULL << 63)
  74#define NHMEX_S_EVENT_TO_R_PROG_EV              0
  75
  76/* NHM-EX Mbox */
  77#define NHMEX_M0_MSR_GLOBAL_CTL                 0xca0
  78#define NHMEX_M0_MSR_PMU_DSP                    0xca5
  79#define NHMEX_M0_MSR_PMU_ISS                    0xca6
  80#define NHMEX_M0_MSR_PMU_MAP                    0xca7
  81#define NHMEX_M0_MSR_PMU_MSC_THR                0xca8
  82#define NHMEX_M0_MSR_PMU_PGT                    0xca9
  83#define NHMEX_M0_MSR_PMU_PLD                    0xcaa
  84#define NHMEX_M0_MSR_PMU_ZDP_CTL_FVC            0xcab
  85#define NHMEX_M0_MSR_PMU_CTL0                   0xcb0
  86#define NHMEX_M0_MSR_PMU_CNT0                   0xcb1
  87#define NHMEX_M_MSR_OFFSET                      0x40
  88#define NHMEX_M0_MSR_PMU_MM_CFG                 0xe54
  89#define NHMEX_M1_MSR_PMU_MM_CFG                 0xe5c
  90
  91#define NHMEX_M_PMON_MM_CFG_EN                  (1ULL << 63)
  92#define NHMEX_M_PMON_ADDR_MATCH_MASK            0x3ffffffffULL
  93#define NHMEX_M_PMON_ADDR_MASK_MASK             0x7ffffffULL
  94#define NHMEX_M_PMON_ADDR_MASK_SHIFT            34
  95
  96#define NHMEX_M_PMON_CTL_EN                     (1 << 0)
  97#define NHMEX_M_PMON_CTL_PMI_EN                 (1 << 1)
  98#define NHMEX_M_PMON_CTL_COUNT_MODE_SHIFT       2
  99#define NHMEX_M_PMON_CTL_COUNT_MODE_MASK        \
 100        (0x3 << NHMEX_M_PMON_CTL_COUNT_MODE_SHIFT)
 101#define NHMEX_M_PMON_CTL_STORAGE_MODE_SHIFT     4
 102#define NHMEX_M_PMON_CTL_STORAGE_MODE_MASK      \
 103        (0x3 << NHMEX_M_PMON_CTL_STORAGE_MODE_SHIFT)
 104#define NHMEX_M_PMON_CTL_WRAP_MODE              (1 << 6)
 105#define NHMEX_M_PMON_CTL_FLAG_MODE              (1 << 7)
 106#define NHMEX_M_PMON_CTL_INC_SEL_SHIFT          9
 107#define NHMEX_M_PMON_CTL_INC_SEL_MASK           \
 108        (0x1f << NHMEX_M_PMON_CTL_INC_SEL_SHIFT)
 109#define NHMEX_M_PMON_CTL_SET_FLAG_SEL_SHIFT     19
 110#define NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK      \
 111        (0x7 << NHMEX_M_PMON_CTL_SET_FLAG_SEL_SHIFT)
 112#define NHMEX_M_PMON_RAW_EVENT_MASK                     \
 113                (NHMEX_M_PMON_CTL_COUNT_MODE_MASK |     \
 114                 NHMEX_M_PMON_CTL_STORAGE_MODE_MASK |   \
 115                 NHMEX_M_PMON_CTL_WRAP_MODE |           \
 116                 NHMEX_M_PMON_CTL_FLAG_MODE |           \
 117                 NHMEX_M_PMON_CTL_INC_SEL_MASK |        \
 118                 NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK)
 119
 120#define NHMEX_M_PMON_ZDP_CTL_FVC_MASK           (((1 << 11) - 1) | (1 << 23))
 121#define NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(n)  (0x7ULL << (11 + 3 * (n)))
 122
 123#define WSMEX_M_PMON_ZDP_CTL_FVC_MASK           (((1 << 12) - 1) | (1 << 24))
 124#define WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(n)  (0x7ULL << (12 + 3 * (n)))
 125
 126/*
 127 * use the 9~13 bits to select event If the 7th bit is not set,
 128 * otherwise use the 19~21 bits to select event.
 129 */
 130#define MBOX_INC_SEL(x) ((x) << NHMEX_M_PMON_CTL_INC_SEL_SHIFT)
 131#define MBOX_SET_FLAG_SEL(x) (((x) << NHMEX_M_PMON_CTL_SET_FLAG_SEL_SHIFT) | \
 132                                NHMEX_M_PMON_CTL_FLAG_MODE)
 133#define MBOX_INC_SEL_MASK (NHMEX_M_PMON_CTL_INC_SEL_MASK | \
 134                           NHMEX_M_PMON_CTL_FLAG_MODE)
 135#define MBOX_SET_FLAG_SEL_MASK (NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK | \
 136                                NHMEX_M_PMON_CTL_FLAG_MODE)
 137#define MBOX_INC_SEL_EXTAR_REG(c, r) \
 138                EVENT_EXTRA_REG(MBOX_INC_SEL(c), NHMEX_M0_MSR_PMU_##r, \
 139                                MBOX_INC_SEL_MASK, (u64)-1, NHMEX_M_##r)
 140#define MBOX_SET_FLAG_SEL_EXTRA_REG(c, r) \
 141                EVENT_EXTRA_REG(MBOX_SET_FLAG_SEL(c), NHMEX_M0_MSR_PMU_##r, \
 142                                MBOX_SET_FLAG_SEL_MASK, \
 143                                (u64)-1, NHMEX_M_##r)
 144
 145/* NHM-EX Rbox */
 146#define NHMEX_R_MSR_GLOBAL_CTL                  0xe00
 147#define NHMEX_R_MSR_PMON_CTL0                   0xe10
 148#define NHMEX_R_MSR_PMON_CNT0                   0xe11
 149#define NHMEX_R_MSR_OFFSET                      0x20
 150
 151#define NHMEX_R_MSR_PORTN_QLX_CFG(n)            \
 152                ((n) < 4 ? (0xe0c + (n)) : (0xe2c + (n) - 4))
 153#define NHMEX_R_MSR_PORTN_IPERF_CFG0(n)         (0xe04 + (n))
 154#define NHMEX_R_MSR_PORTN_IPERF_CFG1(n)         (0xe24 + (n))
 155#define NHMEX_R_MSR_PORTN_XBR_OFFSET(n)         \
 156                (((n) < 4 ? 0 : 0x10) + (n) * 4)
 157#define NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(n)    \
 158                (0xe60 + NHMEX_R_MSR_PORTN_XBR_OFFSET(n))
 159#define NHMEX_R_MSR_PORTN_XBR_SET1_MATCH(n)     \
 160                (NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(n) + 1)
 161#define NHMEX_R_MSR_PORTN_XBR_SET1_MASK(n)      \
 162                (NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(n) + 2)
 163#define NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(n)    \
 164                (0xe70 + NHMEX_R_MSR_PORTN_XBR_OFFSET(n))
 165#define NHMEX_R_MSR_PORTN_XBR_SET2_MATCH(n)     \
 166                (NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(n) + 1)
 167#define NHMEX_R_MSR_PORTN_XBR_SET2_MASK(n)      \
 168                (NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(n) + 2)
 169
 170#define NHMEX_R_PMON_CTL_EN                     (1 << 0)
 171#define NHMEX_R_PMON_CTL_EV_SEL_SHIFT           1
 172#define NHMEX_R_PMON_CTL_EV_SEL_MASK            \
 173                (0x1f << NHMEX_R_PMON_CTL_EV_SEL_SHIFT)
 174#define NHMEX_R_PMON_CTL_PMI_EN                 (1 << 6)
 175#define NHMEX_R_PMON_RAW_EVENT_MASK             NHMEX_R_PMON_CTL_EV_SEL_MASK
 176
 177/* NHM-EX Wbox */
 178#define NHMEX_W_MSR_GLOBAL_CTL                  0xc80
 179#define NHMEX_W_MSR_PMON_CNT0                   0xc90
 180#define NHMEX_W_MSR_PMON_EVT_SEL0               0xc91
 181#define NHMEX_W_MSR_PMON_FIXED_CTR              0x394
 182#define NHMEX_W_MSR_PMON_FIXED_CTL              0x395
 183
 184#define NHMEX_W_PMON_GLOBAL_FIXED_EN            (1ULL << 31)
 185
 186#define __BITS_VALUE(x, i, n)  ((typeof(x))(((x) >> ((i) * (n))) & \
 187                                ((1ULL << (n)) - 1)))
 188
 189DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
 190DEFINE_UNCORE_FORMAT_ATTR(event5, event, "config:1-5");
 191DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
 192DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
 193DEFINE_UNCORE_FORMAT_ATTR(inv, inv, "config:23");
 194DEFINE_UNCORE_FORMAT_ATTR(thresh8, thresh, "config:24-31");
 195DEFINE_UNCORE_FORMAT_ATTR(counter, counter, "config:6-7");
 196DEFINE_UNCORE_FORMAT_ATTR(match, match, "config1:0-63");
 197DEFINE_UNCORE_FORMAT_ATTR(mask, mask, "config2:0-63");
 198
 199static void nhmex_uncore_msr_init_box(struct intel_uncore_box *box)
 200{
 201        wrmsrl(NHMEX_U_MSR_PMON_GLOBAL_CTL, NHMEX_U_PMON_GLOBAL_EN_ALL);
 202}
 203
 204static void nhmex_uncore_msr_disable_box(struct intel_uncore_box *box)
 205{
 206        unsigned msr = uncore_msr_box_ctl(box);
 207        u64 config;
 208
 209        if (msr) {
 210                rdmsrl(msr, config);
 211                config &= ~((1ULL << uncore_num_counters(box)) - 1);
 212                /* WBox has a fixed counter */
 213                if (uncore_msr_fixed_ctl(box))
 214                        config &= ~NHMEX_W_PMON_GLOBAL_FIXED_EN;
 215                wrmsrl(msr, config);
 216        }
 217}
 218
 219static void nhmex_uncore_msr_enable_box(struct intel_uncore_box *box)
 220{
 221        unsigned msr = uncore_msr_box_ctl(box);
 222        u64 config;
 223
 224        if (msr) {
 225                rdmsrl(msr, config);
 226                config |= (1ULL << uncore_num_counters(box)) - 1;
 227                /* WBox has a fixed counter */
 228                if (uncore_msr_fixed_ctl(box))
 229                        config |= NHMEX_W_PMON_GLOBAL_FIXED_EN;
 230                wrmsrl(msr, config);
 231        }
 232}
 233
 234static void nhmex_uncore_msr_disable_event(struct intel_uncore_box *box, struct perf_event *event)
 235{
 236        wrmsrl(event->hw.config_base, 0);
 237}
 238
 239static void nhmex_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
 240{
 241        struct hw_perf_event *hwc = &event->hw;
 242
 243        if (hwc->idx >= UNCORE_PMC_IDX_FIXED)
 244                wrmsrl(hwc->config_base, NHMEX_PMON_CTL_EN_BIT0);
 245        else if (box->pmu->type->event_mask & NHMEX_PMON_CTL_EN_BIT0)
 246                wrmsrl(hwc->config_base, hwc->config | NHMEX_PMON_CTL_EN_BIT22);
 247        else
 248                wrmsrl(hwc->config_base, hwc->config | NHMEX_PMON_CTL_EN_BIT0);
 249}
 250
 251#define NHMEX_UNCORE_OPS_COMMON_INIT()                          \
 252        .init_box       = nhmex_uncore_msr_init_box,            \
 253        .disable_box    = nhmex_uncore_msr_disable_box,         \
 254        .enable_box     = nhmex_uncore_msr_enable_box,          \
 255        .disable_event  = nhmex_uncore_msr_disable_event,       \
 256        .read_counter   = uncore_msr_read_counter
 257
 258static struct intel_uncore_ops nhmex_uncore_ops = {
 259        NHMEX_UNCORE_OPS_COMMON_INIT(),
 260        .enable_event   = nhmex_uncore_msr_enable_event,
 261};
 262
 263static struct attribute *nhmex_uncore_ubox_formats_attr[] = {
 264        &format_attr_event.attr,
 265        &format_attr_edge.attr,
 266        NULL,
 267};
 268
 269static struct attribute_group nhmex_uncore_ubox_format_group = {
 270        .name           = "format",
 271        .attrs          = nhmex_uncore_ubox_formats_attr,
 272};
 273
 274static struct intel_uncore_type nhmex_uncore_ubox = {
 275        .name           = "ubox",
 276        .num_counters   = 1,
 277        .num_boxes      = 1,
 278        .perf_ctr_bits  = 48,
 279        .event_ctl      = NHMEX_U_MSR_PMON_EV_SEL,
 280        .perf_ctr       = NHMEX_U_MSR_PMON_CTR,
 281        .event_mask     = NHMEX_U_PMON_RAW_EVENT_MASK,
 282        .box_ctl        = NHMEX_U_MSR_PMON_GLOBAL_CTL,
 283        .ops            = &nhmex_uncore_ops,
 284        .format_group   = &nhmex_uncore_ubox_format_group
 285};
 286
 287static struct attribute *nhmex_uncore_cbox_formats_attr[] = {
 288        &format_attr_event.attr,
 289        &format_attr_umask.attr,
 290        &format_attr_edge.attr,
 291        &format_attr_inv.attr,
 292        &format_attr_thresh8.attr,
 293        NULL,
 294};
 295
 296static struct attribute_group nhmex_uncore_cbox_format_group = {
 297        .name = "format",
 298        .attrs = nhmex_uncore_cbox_formats_attr,
 299};
 300
 301/* msr offset for each instance of cbox */
 302static unsigned nhmex_cbox_msr_offsets[] = {
 303        0x0, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x240, 0x2c0,
 304};
 305
 306static struct intel_uncore_type nhmex_uncore_cbox = {
 307        .name                   = "cbox",
 308        .num_counters           = 6,
 309        .num_boxes              = 10,
 310        .perf_ctr_bits          = 48,
 311        .event_ctl              = NHMEX_C0_MSR_PMON_EV_SEL0,
 312        .perf_ctr               = NHMEX_C0_MSR_PMON_CTR0,
 313        .event_mask             = NHMEX_PMON_RAW_EVENT_MASK,
 314        .box_ctl                = NHMEX_C0_MSR_PMON_GLOBAL_CTL,
 315        .msr_offsets            = nhmex_cbox_msr_offsets,
 316        .pair_ctr_ctl           = 1,
 317        .ops                    = &nhmex_uncore_ops,
 318        .format_group           = &nhmex_uncore_cbox_format_group
 319};
 320
 321static struct uncore_event_desc nhmex_uncore_wbox_events[] = {
 322        INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0"),
 323        { /* end: all zeroes */ },
 324};
 325
 326static struct intel_uncore_type nhmex_uncore_wbox = {
 327        .name                   = "wbox",
 328        .num_counters           = 4,
 329        .num_boxes              = 1,
 330        .perf_ctr_bits          = 48,
 331        .event_ctl              = NHMEX_W_MSR_PMON_CNT0,
 332        .perf_ctr               = NHMEX_W_MSR_PMON_EVT_SEL0,
 333        .fixed_ctr              = NHMEX_W_MSR_PMON_FIXED_CTR,
 334        .fixed_ctl              = NHMEX_W_MSR_PMON_FIXED_CTL,
 335        .event_mask             = NHMEX_PMON_RAW_EVENT_MASK,
 336        .box_ctl                = NHMEX_W_MSR_GLOBAL_CTL,
 337        .pair_ctr_ctl           = 1,
 338        .event_descs            = nhmex_uncore_wbox_events,
 339        .ops                    = &nhmex_uncore_ops,
 340        .format_group           = &nhmex_uncore_cbox_format_group
 341};
 342
 343static int nhmex_bbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
 344{
 345        struct hw_perf_event *hwc = &event->hw;
 346        struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
 347        struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
 348        int ctr, ev_sel;
 349
 350        ctr = (hwc->config & NHMEX_B_PMON_CTR_MASK) >>
 351                NHMEX_B_PMON_CTR_SHIFT;
 352        ev_sel = (hwc->config & NHMEX_B_PMON_CTL_EV_SEL_MASK) >>
 353                  NHMEX_B_PMON_CTL_EV_SEL_SHIFT;
 354
 355        /* events that do not use the match/mask registers */
 356        if ((ctr == 0 && ev_sel > 0x3) || (ctr == 1 && ev_sel > 0x6) ||
 357            (ctr == 2 && ev_sel != 0x4) || ctr == 3)
 358                return 0;
 359
 360        if (box->pmu->pmu_idx == 0)
 361                reg1->reg = NHMEX_B0_MSR_MATCH;
 362        else
 363                reg1->reg = NHMEX_B1_MSR_MATCH;
 364        reg1->idx = 0;
 365        reg1->config = event->attr.config1;
 366        reg2->config = event->attr.config2;
 367        return 0;
 368}
 369
 370static void nhmex_bbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
 371{
 372        struct hw_perf_event *hwc = &event->hw;
 373        struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
 374        struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
 375
 376        if (reg1->idx != EXTRA_REG_NONE) {
 377                wrmsrl(reg1->reg, reg1->config);
 378                wrmsrl(reg1->reg + 1, reg2->config);
 379        }
 380        wrmsrl(hwc->config_base, NHMEX_PMON_CTL_EN_BIT0 |
 381                (hwc->config & NHMEX_B_PMON_CTL_EV_SEL_MASK));
 382}
 383
 384/*
 385 * The Bbox has 4 counters, but each counter monitors different events.
 386 * Use bits 6-7 in the event config to select counter.
 387 */
 388static struct event_constraint nhmex_uncore_bbox_constraints[] = {
 389        EVENT_CONSTRAINT(0 , 1, 0xc0),
 390        EVENT_CONSTRAINT(0x40, 2, 0xc0),
 391        EVENT_CONSTRAINT(0x80, 4, 0xc0),
 392        EVENT_CONSTRAINT(0xc0, 8, 0xc0),
 393        EVENT_CONSTRAINT_END,
 394};
 395
 396static struct attribute *nhmex_uncore_bbox_formats_attr[] = {
 397        &format_attr_event5.attr,
 398        &format_attr_counter.attr,
 399        &format_attr_match.attr,
 400        &format_attr_mask.attr,
 401        NULL,
 402};
 403
 404static struct attribute_group nhmex_uncore_bbox_format_group = {
 405        .name = "format",
 406        .attrs = nhmex_uncore_bbox_formats_attr,
 407};
 408
 409static struct intel_uncore_ops nhmex_uncore_bbox_ops = {
 410        NHMEX_UNCORE_OPS_COMMON_INIT(),
 411        .enable_event           = nhmex_bbox_msr_enable_event,
 412        .hw_config              = nhmex_bbox_hw_config,
 413        .get_constraint         = uncore_get_constraint,
 414        .put_constraint         = uncore_put_constraint,
 415};
 416
 417static struct intel_uncore_type nhmex_uncore_bbox = {
 418        .name                   = "bbox",
 419        .num_counters           = 4,
 420        .num_boxes              = 2,
 421        .perf_ctr_bits          = 48,
 422        .event_ctl              = NHMEX_B0_MSR_PMON_CTL0,
 423        .perf_ctr               = NHMEX_B0_MSR_PMON_CTR0,
 424        .event_mask             = NHMEX_B_PMON_RAW_EVENT_MASK,
 425        .box_ctl                = NHMEX_B0_MSR_PMON_GLOBAL_CTL,
 426        .msr_offset             = NHMEX_B_MSR_OFFSET,
 427        .pair_ctr_ctl           = 1,
 428        .num_shared_regs        = 1,
 429        .constraints            = nhmex_uncore_bbox_constraints,
 430        .ops                    = &nhmex_uncore_bbox_ops,
 431        .format_group           = &nhmex_uncore_bbox_format_group
 432};
 433
 434static int nhmex_sbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
 435{
 436        struct hw_perf_event *hwc = &event->hw;
 437        struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
 438        struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
 439
 440        /* only TO_R_PROG_EV event uses the match/mask register */
 441        if ((hwc->config & NHMEX_PMON_CTL_EV_SEL_MASK) !=
 442            NHMEX_S_EVENT_TO_R_PROG_EV)
 443                return 0;
 444
 445        if (box->pmu->pmu_idx == 0)
 446                reg1->reg = NHMEX_S0_MSR_MM_CFG;
 447        else
 448                reg1->reg = NHMEX_S1_MSR_MM_CFG;
 449        reg1->idx = 0;
 450        reg1->config = event->attr.config1;
 451        reg2->config = event->attr.config2;
 452        return 0;
 453}
 454
 455static void nhmex_sbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
 456{
 457        struct hw_perf_event *hwc = &event->hw;
 458        struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
 459        struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
 460
 461        if (reg1->idx != EXTRA_REG_NONE) {
 462                wrmsrl(reg1->reg, 0);
 463                wrmsrl(reg1->reg + 1, reg1->config);
 464                wrmsrl(reg1->reg + 2, reg2->config);
 465                wrmsrl(reg1->reg, NHMEX_S_PMON_MM_CFG_EN);
 466        }
 467        wrmsrl(hwc->config_base, hwc->config | NHMEX_PMON_CTL_EN_BIT22);
 468}
 469
 470static struct attribute *nhmex_uncore_sbox_formats_attr[] = {
 471        &format_attr_event.attr,
 472        &format_attr_umask.attr,
 473        &format_attr_edge.attr,
 474        &format_attr_inv.attr,
 475        &format_attr_thresh8.attr,
 476        &format_attr_match.attr,
 477        &format_attr_mask.attr,
 478        NULL,
 479};
 480
 481static struct attribute_group nhmex_uncore_sbox_format_group = {
 482        .name                   = "format",
 483        .attrs                  = nhmex_uncore_sbox_formats_attr,
 484};
 485
 486static struct intel_uncore_ops nhmex_uncore_sbox_ops = {
 487        NHMEX_UNCORE_OPS_COMMON_INIT(),
 488        .enable_event           = nhmex_sbox_msr_enable_event,
 489        .hw_config              = nhmex_sbox_hw_config,
 490        .get_constraint         = uncore_get_constraint,
 491        .put_constraint         = uncore_put_constraint,
 492};
 493
 494static struct intel_uncore_type nhmex_uncore_sbox = {
 495        .name                   = "sbox",
 496        .num_counters           = 4,
 497        .num_boxes              = 2,
 498        .perf_ctr_bits          = 48,
 499        .event_ctl              = NHMEX_S0_MSR_PMON_CTL0,
 500        .perf_ctr               = NHMEX_S0_MSR_PMON_CTR0,
 501        .event_mask             = NHMEX_PMON_RAW_EVENT_MASK,
 502        .box_ctl                = NHMEX_S0_MSR_PMON_GLOBAL_CTL,
 503        .msr_offset             = NHMEX_S_MSR_OFFSET,
 504        .pair_ctr_ctl           = 1,
 505        .num_shared_regs        = 1,
 506        .ops                    = &nhmex_uncore_sbox_ops,
 507        .format_group           = &nhmex_uncore_sbox_format_group
 508};
 509
 510enum {
 511        EXTRA_REG_NHMEX_M_FILTER,
 512        EXTRA_REG_NHMEX_M_DSP,
 513        EXTRA_REG_NHMEX_M_ISS,
 514        EXTRA_REG_NHMEX_M_MAP,
 515        EXTRA_REG_NHMEX_M_MSC_THR,
 516        EXTRA_REG_NHMEX_M_PGT,
 517        EXTRA_REG_NHMEX_M_PLD,
 518        EXTRA_REG_NHMEX_M_ZDP_CTL_FVC,
 519};
 520
 521static struct extra_reg nhmex_uncore_mbox_extra_regs[] = {
 522        MBOX_INC_SEL_EXTAR_REG(0x0, DSP),
 523        MBOX_INC_SEL_EXTAR_REG(0x4, MSC_THR),
 524        MBOX_INC_SEL_EXTAR_REG(0x5, MSC_THR),
 525        MBOX_INC_SEL_EXTAR_REG(0x9, ISS),
 526        /* event 0xa uses two extra registers */
 527        MBOX_INC_SEL_EXTAR_REG(0xa, ISS),
 528        MBOX_INC_SEL_EXTAR_REG(0xa, PLD),
 529        MBOX_INC_SEL_EXTAR_REG(0xb, PLD),
 530        /* events 0xd ~ 0x10 use the same extra register */
 531        MBOX_INC_SEL_EXTAR_REG(0xd, ZDP_CTL_FVC),
 532        MBOX_INC_SEL_EXTAR_REG(0xe, ZDP_CTL_FVC),
 533        MBOX_INC_SEL_EXTAR_REG(0xf, ZDP_CTL_FVC),
 534        MBOX_INC_SEL_EXTAR_REG(0x10, ZDP_CTL_FVC),
 535        MBOX_INC_SEL_EXTAR_REG(0x16, PGT),
 536        MBOX_SET_FLAG_SEL_EXTRA_REG(0x0, DSP),
 537        MBOX_SET_FLAG_SEL_EXTRA_REG(0x1, ISS),
 538        MBOX_SET_FLAG_SEL_EXTRA_REG(0x5, PGT),
 539        MBOX_SET_FLAG_SEL_EXTRA_REG(0x6, MAP),
 540        EVENT_EXTRA_END
 541};
 542
 543/* Nehalem-EX or Westmere-EX ? */
 544static bool uncore_nhmex;
 545
 546static bool nhmex_mbox_get_shared_reg(struct intel_uncore_box *box, int idx, u64 config)
 547{
 548        struct intel_uncore_extra_reg *er;
 549        unsigned long flags;
 550        bool ret = false;
 551        u64 mask;
 552
 553        if (idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) {
 554                er = &box->shared_regs[idx];
 555                raw_spin_lock_irqsave(&er->lock, flags);
 556                if (!atomic_read(&er->ref) || er->config == config) {
 557                        atomic_inc(&er->ref);
 558                        er->config = config;
 559                        ret = true;
 560                }
 561                raw_spin_unlock_irqrestore(&er->lock, flags);
 562
 563                return ret;
 564        }
 565        /*
 566         * The ZDP_CTL_FVC MSR has 4 fields which are used to control
 567         * events 0xd ~ 0x10. Besides these 4 fields, there are additional
 568         * fields which are shared.
 569         */
 570        idx -= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
 571        if (WARN_ON_ONCE(idx >= 4))
 572                return false;
 573
 574        /* mask of the shared fields */
 575        if (uncore_nhmex)
 576                mask = NHMEX_M_PMON_ZDP_CTL_FVC_MASK;
 577        else
 578                mask = WSMEX_M_PMON_ZDP_CTL_FVC_MASK;
 579        er = &box->shared_regs[EXTRA_REG_NHMEX_M_ZDP_CTL_FVC];
 580
 581        raw_spin_lock_irqsave(&er->lock, flags);
 582        /* add mask of the non-shared field if it's in use */
 583        if (__BITS_VALUE(atomic_read(&er->ref), idx, 8)) {
 584                if (uncore_nhmex)
 585                        mask |= NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
 586                else
 587                        mask |= WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
 588        }
 589
 590        if (!atomic_read(&er->ref) || !((er->config ^ config) & mask)) {
 591                atomic_add(1 << (idx * 8), &er->ref);
 592                if (uncore_nhmex)
 593                        mask = NHMEX_M_PMON_ZDP_CTL_FVC_MASK |
 594                                NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
 595                else
 596                        mask = WSMEX_M_PMON_ZDP_CTL_FVC_MASK |
 597                                WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
 598                er->config &= ~mask;
 599                er->config |= (config & mask);
 600                ret = true;
 601        }
 602        raw_spin_unlock_irqrestore(&er->lock, flags);
 603
 604        return ret;
 605}
 606
 607static void nhmex_mbox_put_shared_reg(struct intel_uncore_box *box, int idx)
 608{
 609        struct intel_uncore_extra_reg *er;
 610
 611        if (idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) {
 612                er = &box->shared_regs[idx];
 613                atomic_dec(&er->ref);
 614                return;
 615        }
 616
 617        idx -= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
 618        er = &box->shared_regs[EXTRA_REG_NHMEX_M_ZDP_CTL_FVC];
 619        atomic_sub(1 << (idx * 8), &er->ref);
 620}
 621
 622static u64 nhmex_mbox_alter_er(struct perf_event *event, int new_idx, bool modify)
 623{
 624        struct hw_perf_event *hwc = &event->hw;
 625        struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
 626        u64 idx, orig_idx = __BITS_VALUE(reg1->idx, 0, 8);
 627        u64 config = reg1->config;
 628
 629        /* get the non-shared control bits and shift them */
 630        idx = orig_idx - EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
 631        if (uncore_nhmex)
 632                config &= NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
 633        else
 634                config &= WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
 635        if (new_idx > orig_idx) {
 636                idx = new_idx - orig_idx;
 637                config <<= 3 * idx;
 638        } else {
 639                idx = orig_idx - new_idx;
 640                config >>= 3 * idx;
 641        }
 642
 643        /* add the shared control bits back */
 644        if (uncore_nhmex)
 645                config |= NHMEX_M_PMON_ZDP_CTL_FVC_MASK & reg1->config;
 646        else
 647                config |= WSMEX_M_PMON_ZDP_CTL_FVC_MASK & reg1->config;
 648        config |= NHMEX_M_PMON_ZDP_CTL_FVC_MASK & reg1->config;
 649        if (modify) {
 650                /* adjust the main event selector */
 651                if (new_idx > orig_idx)
 652                        hwc->config += idx << NHMEX_M_PMON_CTL_INC_SEL_SHIFT;
 653                else
 654                        hwc->config -= idx << NHMEX_M_PMON_CTL_INC_SEL_SHIFT;
 655                reg1->config = config;
 656                reg1->idx = ~0xff | new_idx;
 657        }
 658        return config;
 659}
 660
 661static struct event_constraint *
 662nhmex_mbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
 663{
 664        struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
 665        struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
 666        int i, idx[2], alloc = 0;
 667        u64 config1 = reg1->config;
 668
 669        idx[0] = __BITS_VALUE(reg1->idx, 0, 8);
 670        idx[1] = __BITS_VALUE(reg1->idx, 1, 8);
 671again:
 672        for (i = 0; i < 2; i++) {
 673                if (!uncore_box_is_fake(box) && (reg1->alloc & (0x1 << i)))
 674                        idx[i] = 0xff;
 675
 676                if (idx[i] == 0xff)
 677                        continue;
 678
 679                if (!nhmex_mbox_get_shared_reg(box, idx[i],
 680                                __BITS_VALUE(config1, i, 32)))
 681                        goto fail;
 682                alloc |= (0x1 << i);
 683        }
 684
 685        /* for the match/mask registers */
 686        if (reg2->idx != EXTRA_REG_NONE &&
 687            (uncore_box_is_fake(box) || !reg2->alloc) &&
 688            !nhmex_mbox_get_shared_reg(box, reg2->idx, reg2->config))
 689                goto fail;
 690
 691        /*
 692         * If it's a fake box -- as per validate_{group,event}() we
 693         * shouldn't touch event state and we can avoid doing so
 694         * since both will only call get_event_constraints() once
 695         * on each event, this avoids the need for reg->alloc.
 696         */
 697        if (!uncore_box_is_fake(box)) {
 698                if (idx[0] != 0xff && idx[0] != __BITS_VALUE(reg1->idx, 0, 8))
 699                        nhmex_mbox_alter_er(event, idx[0], true);
 700                reg1->alloc |= alloc;
 701                if (reg2->idx != EXTRA_REG_NONE)
 702                        reg2->alloc = 1;
 703        }
 704        return NULL;
 705fail:
 706        if (idx[0] != 0xff && !(alloc & 0x1) &&
 707            idx[0] >= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) {
 708                /*
 709                 * events 0xd ~ 0x10 are functional identical, but are
 710                 * controlled by different fields in the ZDP_CTL_FVC
 711                 * register. If we failed to take one field, try the
 712                 * rest 3 choices.
 713                 */
 714                BUG_ON(__BITS_VALUE(reg1->idx, 1, 8) != 0xff);
 715                idx[0] -= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
 716                idx[0] = (idx[0] + 1) % 4;
 717                idx[0] += EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
 718                if (idx[0] != __BITS_VALUE(reg1->idx, 0, 8)) {
 719                        config1 = nhmex_mbox_alter_er(event, idx[0], false);
 720                        goto again;
 721                }
 722        }
 723
 724        if (alloc & 0x1)
 725                nhmex_mbox_put_shared_reg(box, idx[0]);
 726        if (alloc & 0x2)
 727                nhmex_mbox_put_shared_reg(box, idx[1]);
 728        return &uncore_constraint_empty;
 729}
 730
 731static void nhmex_mbox_put_constraint(struct intel_uncore_box *box, struct perf_event *event)
 732{
 733        struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
 734        struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
 735
 736        if (uncore_box_is_fake(box))
 737                return;
 738
 739        if (reg1->alloc & 0x1)
 740                nhmex_mbox_put_shared_reg(box, __BITS_VALUE(reg1->idx, 0, 8));
 741        if (reg1->alloc & 0x2)
 742                nhmex_mbox_put_shared_reg(box, __BITS_VALUE(reg1->idx, 1, 8));
 743        reg1->alloc = 0;
 744
 745        if (reg2->alloc) {
 746                nhmex_mbox_put_shared_reg(box, reg2->idx);
 747                reg2->alloc = 0;
 748        }
 749}
 750
 751static int nhmex_mbox_extra_reg_idx(struct extra_reg *er)
 752{
 753        if (er->idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC)
 754                return er->idx;
 755        return er->idx + (er->event >> NHMEX_M_PMON_CTL_INC_SEL_SHIFT) - 0xd;
 756}
 757
 758static int nhmex_mbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
 759{
 760        struct intel_uncore_type *type = box->pmu->type;
 761        struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
 762        struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
 763        struct extra_reg *er;
 764        unsigned msr;
 765        int reg_idx = 0;
 766        /*
 767         * The mbox events may require 2 extra MSRs at the most. But only
 768         * the lower 32 bits in these MSRs are significant, so we can use
 769         * config1 to pass two MSRs' config.
 770         */
 771        for (er = nhmex_uncore_mbox_extra_regs; er->msr; er++) {
 772                if (er->event != (event->hw.config & er->config_mask))
 773                        continue;
 774                if (event->attr.config1 & ~er->valid_mask)
 775                        return -EINVAL;
 776
 777                msr = er->msr + type->msr_offset * box->pmu->pmu_idx;
 778                if (WARN_ON_ONCE(msr >= 0xffff || er->idx >= 0xff))
 779                        return -EINVAL;
 780
 781                /* always use the 32~63 bits to pass the PLD config */
 782                if (er->idx == EXTRA_REG_NHMEX_M_PLD)
 783                        reg_idx = 1;
 784                else if (WARN_ON_ONCE(reg_idx > 0))
 785                        return -EINVAL;
 786
 787                reg1->idx &= ~(0xff << (reg_idx * 8));
 788                reg1->reg &= ~(0xffff << (reg_idx * 16));
 789                reg1->idx |= nhmex_mbox_extra_reg_idx(er) << (reg_idx * 8);
 790                reg1->reg |= msr << (reg_idx * 16);
 791                reg1->config = event->attr.config1;
 792                reg_idx++;
 793        }
 794        /*
 795         * The mbox only provides ability to perform address matching
 796         * for the PLD events.
 797         */
 798        if (reg_idx == 2) {
 799                reg2->idx = EXTRA_REG_NHMEX_M_FILTER;
 800                if (event->attr.config2 & NHMEX_M_PMON_MM_CFG_EN)
 801                        reg2->config = event->attr.config2;
 802                else
 803                        reg2->config = ~0ULL;
 804                if (box->pmu->pmu_idx == 0)
 805                        reg2->reg = NHMEX_M0_MSR_PMU_MM_CFG;
 806                else
 807                        reg2->reg = NHMEX_M1_MSR_PMU_MM_CFG;
 808        }
 809        return 0;
 810}
 811
 812static u64 nhmex_mbox_shared_reg_config(struct intel_uncore_box *box, int idx)
 813{
 814        struct intel_uncore_extra_reg *er;
 815        unsigned long flags;
 816        u64 config;
 817
 818        if (idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC)
 819                return box->shared_regs[idx].config;
 820
 821        er = &box->shared_regs[EXTRA_REG_NHMEX_M_ZDP_CTL_FVC];
 822        raw_spin_lock_irqsave(&er->lock, flags);
 823        config = er->config;
 824        raw_spin_unlock_irqrestore(&er->lock, flags);
 825        return config;
 826}
 827
 828static void nhmex_mbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
 829{
 830        struct hw_perf_event *hwc = &event->hw;
 831        struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
 832        struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
 833        int idx;
 834
 835        idx = __BITS_VALUE(reg1->idx, 0, 8);
 836        if (idx != 0xff)
 837                wrmsrl(__BITS_VALUE(reg1->reg, 0, 16),
 838                        nhmex_mbox_shared_reg_config(box, idx));
 839        idx = __BITS_VALUE(reg1->idx, 1, 8);
 840        if (idx != 0xff)
 841                wrmsrl(__BITS_VALUE(reg1->reg, 1, 16),
 842                        nhmex_mbox_shared_reg_config(box, idx));
 843
 844        if (reg2->idx != EXTRA_REG_NONE) {
 845                wrmsrl(reg2->reg, 0);
 846                if (reg2->config != ~0ULL) {
 847                        wrmsrl(reg2->reg + 1,
 848                                reg2->config & NHMEX_M_PMON_ADDR_MATCH_MASK);
 849                        wrmsrl(reg2->reg + 2, NHMEX_M_PMON_ADDR_MASK_MASK &
 850                                (reg2->config >> NHMEX_M_PMON_ADDR_MASK_SHIFT));
 851                        wrmsrl(reg2->reg, NHMEX_M_PMON_MM_CFG_EN);
 852                }
 853        }
 854
 855        wrmsrl(hwc->config_base, hwc->config | NHMEX_PMON_CTL_EN_BIT0);
 856}
 857
 858DEFINE_UNCORE_FORMAT_ATTR(count_mode,           count_mode,     "config:2-3");
 859DEFINE_UNCORE_FORMAT_ATTR(storage_mode,         storage_mode,   "config:4-5");
 860DEFINE_UNCORE_FORMAT_ATTR(wrap_mode,            wrap_mode,      "config:6");
 861DEFINE_UNCORE_FORMAT_ATTR(flag_mode,            flag_mode,      "config:7");
 862DEFINE_UNCORE_FORMAT_ATTR(inc_sel,              inc_sel,        "config:9-13");
 863DEFINE_UNCORE_FORMAT_ATTR(set_flag_sel,         set_flag_sel,   "config:19-21");
 864DEFINE_UNCORE_FORMAT_ATTR(filter_cfg_en,        filter_cfg_en,  "config2:63");
 865DEFINE_UNCORE_FORMAT_ATTR(filter_match,         filter_match,   "config2:0-33");
 866DEFINE_UNCORE_FORMAT_ATTR(filter_mask,          filter_mask,    "config2:34-61");
 867DEFINE_UNCORE_FORMAT_ATTR(dsp,                  dsp,            "config1:0-31");
 868DEFINE_UNCORE_FORMAT_ATTR(thr,                  thr,            "config1:0-31");
 869DEFINE_UNCORE_FORMAT_ATTR(fvc,                  fvc,            "config1:0-31");
 870DEFINE_UNCORE_FORMAT_ATTR(pgt,                  pgt,            "config1:0-31");
 871DEFINE_UNCORE_FORMAT_ATTR(map,                  map,            "config1:0-31");
 872DEFINE_UNCORE_FORMAT_ATTR(iss,                  iss,            "config1:0-31");
 873DEFINE_UNCORE_FORMAT_ATTR(pld,                  pld,            "config1:32-63");
 874
 875static struct attribute *nhmex_uncore_mbox_formats_attr[] = {
 876        &format_attr_count_mode.attr,
 877        &format_attr_storage_mode.attr,
 878        &format_attr_wrap_mode.attr,
 879        &format_attr_flag_mode.attr,
 880        &format_attr_inc_sel.attr,
 881        &format_attr_set_flag_sel.attr,
 882        &format_attr_filter_cfg_en.attr,
 883        &format_attr_filter_match.attr,
 884        &format_attr_filter_mask.attr,
 885        &format_attr_dsp.attr,
 886        &format_attr_thr.attr,
 887        &format_attr_fvc.attr,
 888        &format_attr_pgt.attr,
 889        &format_attr_map.attr,
 890        &format_attr_iss.attr,
 891        &format_attr_pld.attr,
 892        NULL,
 893};
 894
 895static struct attribute_group nhmex_uncore_mbox_format_group = {
 896        .name           = "format",
 897        .attrs          = nhmex_uncore_mbox_formats_attr,
 898};
 899
 900static struct uncore_event_desc nhmex_uncore_mbox_events[] = {
 901        INTEL_UNCORE_EVENT_DESC(bbox_cmds_read, "inc_sel=0xd,fvc=0x2800"),
 902        INTEL_UNCORE_EVENT_DESC(bbox_cmds_write, "inc_sel=0xd,fvc=0x2820"),
 903        { /* end: all zeroes */ },
 904};
 905
 906static struct uncore_event_desc wsmex_uncore_mbox_events[] = {
 907        INTEL_UNCORE_EVENT_DESC(bbox_cmds_read, "inc_sel=0xd,fvc=0x5000"),
 908        INTEL_UNCORE_EVENT_DESC(bbox_cmds_write, "inc_sel=0xd,fvc=0x5040"),
 909        { /* end: all zeroes */ },
 910};
 911
 912static struct intel_uncore_ops nhmex_uncore_mbox_ops = {
 913        NHMEX_UNCORE_OPS_COMMON_INIT(),
 914        .enable_event   = nhmex_mbox_msr_enable_event,
 915        .hw_config      = nhmex_mbox_hw_config,
 916        .get_constraint = nhmex_mbox_get_constraint,
 917        .put_constraint = nhmex_mbox_put_constraint,
 918};
 919
 920static struct intel_uncore_type nhmex_uncore_mbox = {
 921        .name                   = "mbox",
 922        .num_counters           = 6,
 923        .num_boxes              = 2,
 924        .perf_ctr_bits          = 48,
 925        .event_ctl              = NHMEX_M0_MSR_PMU_CTL0,
 926        .perf_ctr               = NHMEX_M0_MSR_PMU_CNT0,
 927        .event_mask             = NHMEX_M_PMON_RAW_EVENT_MASK,
 928        .box_ctl                = NHMEX_M0_MSR_GLOBAL_CTL,
 929        .msr_offset             = NHMEX_M_MSR_OFFSET,
 930        .pair_ctr_ctl           = 1,
 931        .num_shared_regs        = 8,
 932        .event_descs            = nhmex_uncore_mbox_events,
 933        .ops                    = &nhmex_uncore_mbox_ops,
 934        .format_group           = &nhmex_uncore_mbox_format_group,
 935};
 936
 937static void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event)
 938{
 939        struct hw_perf_event *hwc = &event->hw;
 940        struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
 941
 942        /* adjust the main event selector and extra register index */
 943        if (reg1->idx % 2) {
 944                reg1->idx--;
 945                hwc->config -= 1 << NHMEX_R_PMON_CTL_EV_SEL_SHIFT;
 946        } else {
 947                reg1->idx++;
 948                hwc->config += 1 << NHMEX_R_PMON_CTL_EV_SEL_SHIFT;
 949        }
 950
 951        /* adjust extra register config */
 952        switch (reg1->idx % 6) {
 953        case 2:
 954                /* shift the 8~15 bits to the 0~7 bits */
 955                reg1->config >>= 8;
 956                break;
 957        case 3:
 958                /* shift the 0~7 bits to the 8~15 bits */
 959                reg1->config <<= 8;
 960                break;
 961        }
 962}
 963
 964/*
 965 * Each rbox has 4 event set which monitor PQI port 0~3 or 4~7.
 966 * An event set consists of 6 events, the 3rd and 4th events in
 967 * an event set use the same extra register. So an event set uses
 968 * 5 extra registers.
 969 */
 970static struct event_constraint *
 971nhmex_rbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
 972{
 973        struct hw_perf_event *hwc = &event->hw;
 974        struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
 975        struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
 976        struct intel_uncore_extra_reg *er;
 977        unsigned long flags;
 978        int idx, er_idx;
 979        u64 config1;
 980        bool ok = false;
 981
 982        if (!uncore_box_is_fake(box) && reg1->alloc)
 983                return NULL;
 984
 985        idx = reg1->idx % 6;
 986        config1 = reg1->config;
 987again:
 988        er_idx = idx;
 989        /* the 3rd and 4th events use the same extra register */
 990        if (er_idx > 2)
 991                er_idx--;
 992        er_idx += (reg1->idx / 6) * 5;
 993
 994        er = &box->shared_regs[er_idx];
 995        raw_spin_lock_irqsave(&er->lock, flags);
 996        if (idx < 2) {
 997                if (!atomic_read(&er->ref) || er->config == reg1->config) {
 998                        atomic_inc(&er->ref);
 999                        er->config = reg1->config;
1000                        ok = true;
1001                }
1002        } else if (idx == 2 || idx == 3) {
1003                /*
1004                 * these two events use different fields in a extra register,
1005                 * the 0~7 bits and the 8~15 bits respectively.
1006                 */
1007                u64 mask = 0xff << ((idx - 2) * 8);
1008                if (!__BITS_VALUE(atomic_read(&er->ref), idx - 2, 8) ||
1009                                !((er->config ^ config1) & mask)) {
1010                        atomic_add(1 << ((idx - 2) * 8), &er->ref);
1011                        er->config &= ~mask;
1012                        er->config |= config1 & mask;
1013                        ok = true;
1014                }
1015        } else {
1016                if (!atomic_read(&er->ref) ||
1017                                (er->config == (hwc->config >> 32) &&
1018                                 er->config1 == reg1->config &&
1019                                 er->config2 == reg2->config)) {
1020                        atomic_inc(&er->ref);
1021                        er->config = (hwc->config >> 32);
1022                        er->config1 = reg1->config;
1023                        er->config2 = reg2->config;
1024                        ok = true;
1025                }
1026        }
1027        raw_spin_unlock_irqrestore(&er->lock, flags);
1028
1029        if (!ok) {
1030                /*
1031                 * The Rbox events are always in pairs. The paired
1032                 * events are functional identical, but use different
1033                 * extra registers. If we failed to take an extra
1034                 * register, try the alternative.
1035                 */
1036                idx ^= 1;
1037                if (idx != reg1->idx % 6) {
1038                        if (idx == 2)
1039                                config1 >>= 8;
1040                        else if (idx == 3)
1041                                config1 <<= 8;
1042                        goto again;
1043                }
1044        } else {
1045                if (!uncore_box_is_fake(box)) {
1046                        if (idx != reg1->idx % 6)
1047                                nhmex_rbox_alter_er(box, event);
1048                        reg1->alloc = 1;
1049                }
1050                return NULL;
1051        }
1052        return &uncore_constraint_empty;
1053}
1054
1055static void nhmex_rbox_put_constraint(struct intel_uncore_box *box, struct perf_event *event)
1056{
1057        struct intel_uncore_extra_reg *er;
1058        struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
1059        int idx, er_idx;
1060
1061        if (uncore_box_is_fake(box) || !reg1->alloc)
1062                return;
1063
1064        idx = reg1->idx % 6;
1065        er_idx = idx;
1066        if (er_idx > 2)
1067                er_idx--;
1068        er_idx += (reg1->idx / 6) * 5;
1069
1070        er = &box->shared_regs[er_idx];
1071        if (idx == 2 || idx == 3)
1072                atomic_sub(1 << ((idx - 2) * 8), &er->ref);
1073        else
1074                atomic_dec(&er->ref);
1075
1076        reg1->alloc = 0;
1077}
1078
1079static int nhmex_rbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
1080{
1081        struct hw_perf_event *hwc = &event->hw;
1082        struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
1083        struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
1084        int idx;
1085
1086        idx = (event->hw.config & NHMEX_R_PMON_CTL_EV_SEL_MASK) >>
1087                NHMEX_R_PMON_CTL_EV_SEL_SHIFT;
1088        if (idx >= 0x18)
1089                return -EINVAL;
1090
1091        reg1->idx = idx;
1092        reg1->config = event->attr.config1;
1093
1094        switch (idx % 6) {
1095        case 4:
1096        case 5:
1097                hwc->config |= event->attr.config & (~0ULL << 32);
1098                reg2->config = event->attr.config2;
1099                break;
1100        }
1101        return 0;
1102}
1103
1104static void nhmex_rbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
1105{
1106        struct hw_perf_event *hwc = &event->hw;
1107        struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
1108        struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
1109        int idx, port;
1110
1111        idx = reg1->idx;
1112        port = idx / 6 + box->pmu->pmu_idx * 4;
1113
1114        switch (idx % 6) {
1115        case 0:
1116                wrmsrl(NHMEX_R_MSR_PORTN_IPERF_CFG0(port), reg1->config);
1117                break;
1118        case 1:
1119                wrmsrl(NHMEX_R_MSR_PORTN_IPERF_CFG1(port), reg1->config);
1120                break;
1121        case 2:
1122        case 3:
1123                wrmsrl(NHMEX_R_MSR_PORTN_QLX_CFG(port),
1124                        uncore_shared_reg_config(box, 2 + (idx / 6) * 5));
1125                break;
1126        case 4:
1127                wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(port),
1128                        hwc->config >> 32);
1129                wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET1_MATCH(port), reg1->config);
1130                wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET1_MASK(port), reg2->config);
1131                break;
1132        case 5:
1133                wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(port),
1134                        hwc->config >> 32);
1135                wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET2_MATCH(port), reg1->config);
1136                wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET2_MASK(port), reg2->config);
1137                break;
1138        }
1139
1140        wrmsrl(hwc->config_base, NHMEX_PMON_CTL_EN_BIT0 |
1141                (hwc->config & NHMEX_R_PMON_CTL_EV_SEL_MASK));
1142}
1143
1144DEFINE_UNCORE_FORMAT_ATTR(xbr_mm_cfg, xbr_mm_cfg, "config:32-63");
1145DEFINE_UNCORE_FORMAT_ATTR(xbr_match, xbr_match, "config1:0-63");
1146DEFINE_UNCORE_FORMAT_ATTR(xbr_mask, xbr_mask, "config2:0-63");
1147DEFINE_UNCORE_FORMAT_ATTR(qlx_cfg, qlx_cfg, "config1:0-15");
1148DEFINE_UNCORE_FORMAT_ATTR(iperf_cfg, iperf_cfg, "config1:0-31");
1149
1150static struct attribute *nhmex_uncore_rbox_formats_attr[] = {
1151        &format_attr_event5.attr,
1152        &format_attr_xbr_mm_cfg.attr,
1153        &format_attr_xbr_match.attr,
1154        &format_attr_xbr_mask.attr,
1155        &format_attr_qlx_cfg.attr,
1156        &format_attr_iperf_cfg.attr,
1157        NULL,
1158};
1159
1160static struct attribute_group nhmex_uncore_rbox_format_group = {
1161        .name = "format",
1162        .attrs = nhmex_uncore_rbox_formats_attr,
1163};
1164
1165static struct uncore_event_desc nhmex_uncore_rbox_events[] = {
1166        INTEL_UNCORE_EVENT_DESC(qpi0_flit_send,         "event=0x0,iperf_cfg=0x80000000"),
1167        INTEL_UNCORE_EVENT_DESC(qpi1_filt_send,         "event=0x6,iperf_cfg=0x80000000"),
1168        INTEL_UNCORE_EVENT_DESC(qpi0_idle_filt,         "event=0x0,iperf_cfg=0x40000000"),
1169        INTEL_UNCORE_EVENT_DESC(qpi1_idle_filt,         "event=0x6,iperf_cfg=0x40000000"),
1170        INTEL_UNCORE_EVENT_DESC(qpi0_date_response,     "event=0x0,iperf_cfg=0xc4"),
1171        INTEL_UNCORE_EVENT_DESC(qpi1_date_response,     "event=0x6,iperf_cfg=0xc4"),
1172        { /* end: all zeroes */ },
1173};
1174
1175static struct intel_uncore_ops nhmex_uncore_rbox_ops = {
1176        NHMEX_UNCORE_OPS_COMMON_INIT(),
1177        .enable_event           = nhmex_rbox_msr_enable_event,
1178        .hw_config              = nhmex_rbox_hw_config,
1179        .get_constraint         = nhmex_rbox_get_constraint,
1180        .put_constraint         = nhmex_rbox_put_constraint,
1181};
1182
1183static struct intel_uncore_type nhmex_uncore_rbox = {
1184        .name                   = "rbox",
1185        .num_counters           = 8,
1186        .num_boxes              = 2,
1187        .perf_ctr_bits          = 48,
1188        .event_ctl              = NHMEX_R_MSR_PMON_CTL0,
1189        .perf_ctr               = NHMEX_R_MSR_PMON_CNT0,
1190        .event_mask             = NHMEX_R_PMON_RAW_EVENT_MASK,
1191        .box_ctl                = NHMEX_R_MSR_GLOBAL_CTL,
1192        .msr_offset             = NHMEX_R_MSR_OFFSET,
1193        .pair_ctr_ctl           = 1,
1194        .num_shared_regs        = 20,
1195        .event_descs            = nhmex_uncore_rbox_events,
1196        .ops                    = &nhmex_uncore_rbox_ops,
1197        .format_group           = &nhmex_uncore_rbox_format_group
1198};
1199
1200static struct intel_uncore_type *nhmex_msr_uncores[] = {
1201        &nhmex_uncore_ubox,
1202        &nhmex_uncore_cbox,
1203        &nhmex_uncore_bbox,
1204        &nhmex_uncore_sbox,
1205        &nhmex_uncore_mbox,
1206        &nhmex_uncore_rbox,
1207        &nhmex_uncore_wbox,
1208        NULL,
1209};
1210
1211void nhmex_uncore_cpu_init(void)
1212{
1213        if (boot_cpu_data.x86_model == 46)
1214                uncore_nhmex = true;
1215        else
1216                nhmex_uncore_mbox.event_descs = wsmex_uncore_mbox_events;
1217        if (nhmex_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
1218                nhmex_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
1219        uncore_msr_uncores = nhmex_msr_uncores;
1220}
1221/* end of Nehalem-EX uncore support */
1222