tools/perf/builtin-c2c.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * This is rewrite of original c2c tool introduced in here:
   4  *   http://lwn.net/Articles/588866/
   5  *
   6  * The original tool was changed to fit in current perf state.
   7  *
   8  * Original authors:
   9  *   Don Zickus <dzickus@redhat.com>
  10  *   Dick Fowles <fowles@inreach.com>
  11  *   Joe Mario <jmario@redhat.com>
  12  */
  13 #include <errno.h>
  14 #include <inttypes.h>
  15 #include <linux/compiler.h>
  16 #include <linux/err.h>
  17 #include <linux/kernel.h>
  18 #include <linux/stringify.h>
  19 #include <linux/zalloc.h>
  20 #include <asm/bug.h>
  21 #include <sys/param.h>
  22 #include "debug.h"
  23 #include "builtin.h"
  24 #include <perf/cpumap.h>
  25 #include <subcmd/pager.h>
  26 #include <subcmd/parse-options.h>
  27 #include "map_symbol.h"
  28 #include "mem-events.h"
  29 #include "session.h"
  30 #include "hist.h"
  31 #include "sort.h"
  32 #include "tool.h"
  33 #include "cacheline.h"
  34 #include "data.h"
  35 #include "event.h"
  36 #include "evlist.h"
  37 #include "evsel.h"
  38 #include "ui/browsers/hists.h"
  39 #include "thread.h"
  40 #include "mem2node.h"
  41 #include "symbol.h"
  42 #include "ui/ui.h"
  43 #include "ui/progress.h"
  44 #include "../perf.h"
  45 #include "pmu.h"
  46 #include "pmu-hybrid.h"
  47 #include "string2.h"
  48
  49 struct c2c_hists {
  50         struct hists            hists;
  51         struct perf_hpp_list    list;
  52         struct c2c_stats        stats;
  53 };
  54
  55 struct compute_stats {
  56         struct stats             lcl_hitm;
  57         struct stats             rmt_hitm;
  58         struct stats             load;
  59 };
  60
  61 struct c2c_hist_entry {
  62         struct c2c_hists        *hists;
  63         struct c2c_stats         stats;
  64         unsigned long           *cpuset;
  65         unsigned long           *nodeset;
  66         struct c2c_stats        *node_stats;
  67         unsigned int             cacheline_idx;
  68
  69         struct compute_stats     cstats;
  70
  71         unsigned long            paddr;
  72         unsigned long            paddr_cnt;
  73         bool                     paddr_zero;
  74         char                    *nodestr;
  75
  76         /*
  77          * must be at the end,
  78          * because of its callchain dynamic entry
  79          */
  80         struct hist_entry       he;
  81 };
  82
  83 static char const *coalesce_default = "iaddr";
  84
  85 struct perf_c2c {
  86         struct perf_tool        tool;
  87         struct c2c_hists        hists;
  88         struct mem2node         mem2node;
  89
  90         unsigned long           **nodes;
  91         int                      nodes_cnt;
  92         int                      cpus_cnt;
  93         int                     *cpu2node;
  94         int                      node_info;
  95
  96         bool                     show_src;
  97         bool                     show_all;
  98         bool                     use_stdio;
  99         bool                     stats_only;
 100         bool                     symbol_full;
 101         bool                     stitch_lbr;
 102
 103         /* Shared cache line stats */
 104         struct c2c_stats        shared_clines_stats;
 105         int                     shared_clines;
 106
 107         int                      display;
 108
 109         const char              *coalesce;
 110         char                    *cl_sort;
 111         char                    *cl_resort;
 112         char                    *cl_output;
 113 };
 114
 115 enum {
 116         DISPLAY_LCL,
 117         DISPLAY_RMT,
 118         DISPLAY_TOT,
 119         DISPLAY_MAX,
 120 };
 121
 122 static const char *display_str[DISPLAY_MAX] = {
 123         [DISPLAY_LCL] = "Local",
 124         [DISPLAY_RMT] = "Remote",
 125         [DISPLAY_TOT] = "Total",
 126 };
 127
 128 static const struct option c2c_options[] = {
 129         OPT_INCR('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"),
 130         OPT_END()
 131 };
 132
 133 static struct perf_c2c c2c;
 134
 135 static void *c2c_he_zalloc(size_t size)
 136 {
 137         struct c2c_hist_entry *c2c_he;
 138
 139         c2c_he = zalloc(size + sizeof(*c2c_he));
 140         if (!c2c_he)
 141                 return NULL;
 142
 143         c2c_he->cpuset = bitmap_zalloc(c2c.cpus_cnt);
 144         if (!c2c_he->cpuset)
 145                 return NULL;
 146
 147         c2c_he->nodeset = bitmap_zalloc(c2c.nodes_cnt);
 148         if (!c2c_he->nodeset)
 149                 return NULL;
 150
 151         c2c_he->node_stats = zalloc(c2c.nodes_cnt * sizeof(*c2c_he->node_stats));
 152         if (!c2c_he->node_stats)
 153                 return NULL;
 154
 155         init_stats(&c2c_he->cstats.lcl_hitm);
 156         init_stats(&c2c_he->cstats.rmt_hitm);
 157         init_stats(&c2c_he->cstats.load);
 158
 159         return &c2c_he->he;
 160 }
 161
 162 static void c2c_he_free(void *he)
 163 {
 164         struct c2c_hist_entry *c2c_he;
 165
 166         c2c_he = container_of(he, struct c2c_hist_entry, he);
 167         if (c2c_he->hists) {
 168                 hists__delete_entries(&c2c_he->hists->hists);
 169                 free(c2c_he->hists);
 170         }
 171
 172         free(c2c_he->cpuset);
 173         free(c2c_he->nodeset);
 174         free(c2c_he->nodestr);
 175         free(c2c_he->node_stats);
 176         free(c2c_he);
 177 }
 178
 179 static struct hist_entry_ops c2c_entry_ops = {
 180         .new    = c2c_he_zalloc,
 181         .free   = c2c_he_free,
 182 };
 183
 184 static int c2c_hists__init(struct c2c_hists *hists,
 185                            const char *sort,
 186                            int nr_header_lines);
 187
 188 static struct c2c_hists*
 189 he__get_c2c_hists(struct hist_entry *he,
 190                   const char *sort,
 191                   int nr_header_lines)
 192 {
 193         struct c2c_hist_entry *c2c_he;
 194         struct c2c_hists *hists;
 195         int ret;
 196
 197         c2c_he = container_of(he, struct c2c_hist_entry, he);
 198         if (c2c_he->hists)
 199                 return c2c_he->hists;
 200
 201         hists = c2c_he->hists = zalloc(sizeof(*hists));
 202         if (!hists)
 203                 return NULL;
 204
 205         ret = c2c_hists__init(hists, sort, nr_header_lines);
 206         if (ret) {
 207                 free(hists);
 208                 return NULL;
 209         }
 210
 211         return hists;
 212 }
 213
 214 static void c2c_he__set_cpu(struct c2c_hist_entry *c2c_he,
 215                             struct perf_sample *sample)
 216 {
 217         if (WARN_ONCE(sample->cpu == (unsigned int) -1,
 218                       "WARNING: no sample cpu value"))
 219                 return;
 220
 221         set_bit(sample->cpu, c2c_he->cpuset);
 222 }
 223
 224 static void c2c_he__set_node(struct c2c_hist_entry *c2c_he,
 225                              struct perf_sample *sample)
 226 {
 227         int node;
 228
 229         if (!sample->phys_addr) {
 230                 c2c_he->paddr_zero = true;
 231                 return;
 232         }
 233
 234         node = mem2node__node(&c2c.mem2node, sample->phys_addr);
 235         if (WARN_ONCE(node < 0, "WARNING: failed to find node\n"))
 236                 return;
 237
 238         set_bit(node, c2c_he->nodeset);
 239
 240         if (c2c_he->paddr != sample->phys_addr) {
 241                 c2c_he->paddr_cnt++;
 242                 c2c_he->paddr = sample->phys_addr;
 243         }
 244 }
 245
 246 static void compute_stats(struct c2c_hist_entry *c2c_he,
 247                           struct c2c_stats *stats,
 248                           u64 weight)
 249 {
 250         struct compute_stats *cstats = &c2c_he->cstats;
 251
 252         if (stats->rmt_hitm)
 253                 update_stats(&cstats->rmt_hitm, weight);
 254         else if (stats->lcl_hitm)
 255                 update_stats(&cstats->lcl_hitm, weight);
 256         else if (stats->load)
 257                 update_stats(&cstats->load, weight);
 258 }
 259
 260 static int process_sample_event(struct perf_tool *tool __maybe_unused,
 261                                 union perf_event *event,
 262                                 struct perf_sample *sample,
 263                                 struct evsel *evsel,
 264                                 struct machine *machine)
 265 {
 266         struct c2c_hists *c2c_hists = &c2c.hists;
 267         struct c2c_hist_entry *c2c_he;
 268         struct c2c_stats stats = { .nr_entries = 0, };
 269         struct hist_entry *he;
 270         struct addr_location al;
 271         struct mem_info *mi, *mi_dup;
 272         int ret;
 273
 274         if (machine__resolve(machine, &al, sample) < 0) {
 275                 pr_debug("problem processing %d event, skipping it.\n",
 276                          event->header.type);
 277                 return -1;
 278         }
 279
 280         if (c2c.stitch_lbr)
 281                 al.thread->lbr_stitch_enable = true;
 282
 283         ret = sample__resolve_callchain(sample, &callchain_cursor, NULL,
 284                                         evsel, &al, sysctl_perf_event_max_stack);
 285         if (ret)
 286                 goto out;
 287
 288         mi = sample__resolve_mem(sample, &al);
 289         if (mi == NULL)
 290                 return -ENOMEM;
 291
 292         /*
 293          * The mi object is released in hists__add_entry_ops,
 294          * if it gets sorted out into existing data, so we need
 295          * to take the copy now.
 296          */
 297         mi_dup = mem_info__get(mi);
 298
 299         c2c_decode_stats(&stats, mi);
 300
 301         he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops,
 302                                   &al, NULL, NULL, mi,
 303                                   sample, true);
 304         if (he == NULL)
 305                 goto free_mi;
 306
 307         c2c_he = container_of(he, struct c2c_hist_entry, he);
 308         c2c_add_stats(&c2c_he->stats, &stats);
 309         c2c_add_stats(&c2c_hists->stats, &stats);
 310
 311         c2c_he__set_cpu(c2c_he, sample);
 312         c2c_he__set_node(c2c_he, sample);
 313
 314         hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
 315         ret = hist_entry__append_callchain(he, sample);
 316
 317         if (!ret) {
 318                 /*
 319                  * There's already been warning about missing
 320                  * sample's cpu value. Let's account all to
 321                  * node 0 in this case, without any further
 322                  * warning.
 323                  *
 324                  * Doing node stats only for single callchain data.
 325                  */
 326                 int cpu = sample->cpu == (unsigned int) -1 ? 0 : sample->cpu;
 327                 int node = c2c.cpu2node[cpu];
 328
 329                 mi = mi_dup;
 330
 331                 c2c_hists = he__get_c2c_hists(he, c2c.cl_sort, 2);
 332                 if (!c2c_hists)
 333                         goto free_mi;
 334
 335                 he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops,
 336                                           &al, NULL, NULL, mi,
 337                                           sample, true);
 338                 if (he == NULL)
 339                         goto free_mi;
 340
 341                 c2c_he = container_of(he, struct c2c_hist_entry, he);
 342                 c2c_add_stats(&c2c_he->stats, &stats);
 343                 c2c_add_stats(&c2c_hists->stats, &stats);
 344                 c2c_add_stats(&c2c_he->node_stats[node], &stats);
 345
 346                 compute_stats(c2c_he, &stats, sample->weight);
 347
 348                 c2c_he__set_cpu(c2c_he, sample);
 349                 c2c_he__set_node(c2c_he, sample);
 350
 351                 hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
 352                 ret = hist_entry__append_callchain(he, sample);
 353         }
 354
 355 out:
 356         addr_location__put(&al);
 357         return ret;
 358
 359 free_mi:
 360         mem_info__put(mi_dup);
 361         mem_info__put(mi);
 362         ret = -ENOMEM;
 363         goto out;
 364 }
 365
 366 static struct perf_c2c c2c = {
 367         .tool = {
 368                 .sample         = process_sample_event,
 369                 .mmap           = perf_event__process_mmap,
 370                 .mmap2          = perf_event__process_mmap2,
 371                 .comm           = perf_event__process_comm,
 372                 .exit           = perf_event__process_exit,
 373                 .fork           = perf_event__process_fork,
 374                 .lost           = perf_event__process_lost,
 375                 .attr           = perf_event__process_attr,
 376                 .auxtrace_info  = perf_event__process_auxtrace_info,
 377                 .auxtrace       = perf_event__process_auxtrace,
 378                 .auxtrace_error = perf_event__process_auxtrace_error,
 379                 .ordered_events = true,
 380                 .ordering_requires_timestamps = true,
 381         },
 382 };
 383
 384 static const char * const c2c_usage[] = {
 385         "perf c2c {record|report}",
 386         NULL
 387 };
 388
 389 static const char * const __usage_report[] = {
 390         "perf c2c report",
 391         NULL
 392 };
 393
 394 static const char * const *report_c2c_usage = __usage_report;
 395
 396 #define C2C_HEADER_MAX 2
 397
 398 struct c2c_header {
 399         struct {
 400                 const char *text;
 401                 int         span;
 402         } line[C2C_HEADER_MAX];
 403 };
 404
 405 struct c2c_dimension {
 406         struct c2c_header        header;
 407         const char              *name;
 408         int                      width;
 409         struct sort_entry       *se;
 410
 411         int64_t (*cmp)(struct perf_hpp_fmt *fmt,
 412                        struct hist_entry *, struct hist_entry *);
 413         int   (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 414                        struct hist_entry *he);
 415         int   (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 416                        struct hist_entry *he);
 417 };
 418
 419 struct c2c_fmt {
 420         struct perf_hpp_fmt      fmt;
 421         struct c2c_dimension    *dim;
 422 };
 423
 424 #define SYMBOL_WIDTH 30
 425
 426 static struct c2c_dimension dim_symbol;
 427 static struct c2c_dimension dim_srcline;
 428
 429 static int symbol_width(struct hists *hists, struct sort_entry *se)
 430 {
 431         int width = hists__col_len(hists, se->se_width_idx);
 432
 433         if (!c2c.symbol_full)
 434                 width = MIN(width, SYMBOL_WIDTH);
 435
 436         return width;
 437 }
 438
 439 static int c2c_width(struct perf_hpp_fmt *fmt,
 440                      struct perf_hpp *hpp __maybe_unused,
 441                      struct hists *hists)
 442 {
 443         struct c2c_fmt *c2c_fmt;
 444         struct c2c_dimension *dim;
 445
 446         c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
 447         dim = c2c_fmt->dim;
 448
 449         if (dim == &dim_symbol || dim == &dim_srcline)
 450                 return symbol_width(hists, dim->se);
 451
 452         return dim->se ? hists__col_len(hists, dim->se->se_width_idx) :
 453                          c2c_fmt->dim->width;
 454 }
 455
 456 static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 457                       struct hists *hists, int line, int *span)
 458 {
 459         struct perf_hpp_list *hpp_list = hists->hpp_list;
 460         struct c2c_fmt *c2c_fmt;
 461         struct c2c_dimension *dim;
 462         const char *text = NULL;
 463         int width = c2c_width(fmt, hpp, hists);
 464
 465         c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
 466         dim = c2c_fmt->dim;
 467
 468         if (dim->se) {
 469                 text = dim->header.line[line].text;
 470                 /* Use the last line from sort_entry if not defined. */
 471                 if (!text && (line == hpp_list->nr_header_lines - 1))
 472                         text = dim->se->se_header;
 473         } else {
 474                 text = dim->header.line[line].text;
 475
 476                 if (*span) {
 477                         (*span)--;
 478                         return 0;
 479                 } else {
 480                         *span = dim->header.line[line].span;
 481                 }
 482         }
 483
 484         if (text == NULL)
 485                 text = "";
 486
 487         return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
 488 }
 489
 490 #define HEX_STR(__s, __v)                               \
 491 ({                                                      \
 492         scnprintf(__s, sizeof(__s), "0x%" PRIx64, __v); \
 493         __s;                                            \
 494 })
 495
 496 static int64_t
 497 dcacheline_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 498                struct hist_entry *left, struct hist_entry *right)
 499 {
 500         return sort__dcacheline_cmp(left, right);
 501 }
 502
 503 static int dcacheline_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 504                             struct hist_entry *he)
 505 {
 506         uint64_t addr = 0;
 507         int width = c2c_width(fmt, hpp, he->hists);
 508         char buf[20];
 509
 510         if (he->mem_info)
 511                 addr = cl_address(he->mem_info->daddr.addr);
 512
 513         return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
 514 }
 515
 516 static int
 517 dcacheline_node_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 518                       struct hist_entry *he)
 519 {
 520         struct c2c_hist_entry *c2c_he;
 521         int width = c2c_width(fmt, hpp, he->hists);
 522
 523         c2c_he = container_of(he, struct c2c_hist_entry, he);
 524         if (WARN_ON_ONCE(!c2c_he->nodestr))
 525                 return 0;
 526
 527         return scnprintf(hpp->buf, hpp->size, "%*s", width, c2c_he->nodestr);
 528 }
 529
 530 static int
 531 dcacheline_node_count(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 532                       struct hist_entry *he)
 533 {
 534         struct c2c_hist_entry *c2c_he;
 535         int width = c2c_width(fmt, hpp, he->hists);
 536
 537         c2c_he = container_of(he, struct c2c_hist_entry, he);
 538         return scnprintf(hpp->buf, hpp->size, "%*lu", width, c2c_he->paddr_cnt);
 539 }
 540
 541 static int offset_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 542                         struct hist_entry *he)
 543 {
 544         uint64_t addr = 0;
 545         int width = c2c_width(fmt, hpp, he->hists);
 546         char buf[20];
 547
 548         if (he->mem_info)
 549                 addr = cl_offset(he->mem_info->daddr.al_addr);
 550
 551         return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
 552 }
 553
 554 static int64_t
 555 offset_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 556            struct hist_entry *left, struct hist_entry *right)
 557 {
 558         uint64_t l = 0, r = 0;
 559
 560         if (left->mem_info)
 561                 l = cl_offset(left->mem_info->daddr.addr);
 562         if (right->mem_info)
 563                 r = cl_offset(right->mem_info->daddr.addr);
 564
 565         return (int64_t)(r - l);
 566 }
 567
 568 static int
 569 iaddr_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 570             struct hist_entry *he)
 571 {
 572         uint64_t addr = 0;
 573         int width = c2c_width(fmt, hpp, he->hists);
 574         char buf[20];
 575
 576         if (he->mem_info)
 577                 addr = he->mem_info->iaddr.addr;
 578
 579         return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
 580 }
 581
 582 static int64_t
 583 iaddr_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 584           struct hist_entry *left, struct hist_entry *right)
 585 {
 586         return sort__iaddr_cmp(left, right);
 587 }
 588
 589 static int
 590 tot_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 591                struct hist_entry *he)
 592 {
 593         struct c2c_hist_entry *c2c_he;
 594         int width = c2c_width(fmt, hpp, he->hists);
 595         unsigned int tot_hitm;
 596
 597         c2c_he = container_of(he, struct c2c_hist_entry, he);
 598         tot_hitm = c2c_he->stats.lcl_hitm + c2c_he->stats.rmt_hitm;
 599
 600         return scnprintf(hpp->buf, hpp->size, "%*u", width, tot_hitm);
 601 }
 602
 603 static int64_t
 604 tot_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 605              struct hist_entry *left, struct hist_entry *right)
 606 {
 607         struct c2c_hist_entry *c2c_left;
 608         struct c2c_hist_entry *c2c_right;
 609         uint64_t tot_hitm_left;
 610         uint64_t tot_hitm_right;
 611
 612         c2c_left  = container_of(left, struct c2c_hist_entry, he);
 613         c2c_right = container_of(right, struct c2c_hist_entry, he);
 614
 615         tot_hitm_left  = c2c_left->stats.lcl_hitm + c2c_left->stats.rmt_hitm;
 616         tot_hitm_right = c2c_right->stats.lcl_hitm + c2c_right->stats.rmt_hitm;
 617
 618         return tot_hitm_left - tot_hitm_right;
 619 }
 620
 621 #define STAT_FN_ENTRY(__f)                                      \
 622 static int                                                      \
 623 __f ## _entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,   \
 624               struct hist_entry *he)                            \
 625 {                                                               \
 626         struct c2c_hist_entry *c2c_he;                          \
 627         int width = c2c_width(fmt, hpp, he->hists);             \
 628                                                                 \
 629         c2c_he = container_of(he, struct c2c_hist_entry, he);   \
 630         return scnprintf(hpp->buf, hpp->size, "%*u", width,     \
 631                          c2c_he->stats.__f);                    \
 632 }
 633
 634 #define STAT_FN_CMP(__f)                                                \
 635 static int64_t                                                          \
 636 __f ## _cmp(struct perf_hpp_fmt *fmt __maybe_unused,                    \
 637             struct hist_entry *left, struct hist_entry *right)          \
 638 {                                                                       \
 639         struct c2c_hist_entry *c2c_left, *c2c_right;                    \
 640                                                                         \
 641         c2c_left  = container_of(left, struct c2c_hist_entry, he);      \
 642         c2c_right = container_of(right, struct c2c_hist_entry, he);     \
 643         return (uint64_t) c2c_left->stats.__f -                         \
 644                (uint64_t) c2c_right->stats.__f;                         \
 645 }
 646
 647 #define STAT_FN(__f)            \
 648         STAT_FN_ENTRY(__f)      \
 649         STAT_FN_CMP(__f)
 650
 651 STAT_FN(rmt_hitm)
 652 STAT_FN(lcl_hitm)
 653 STAT_FN(store)
 654 STAT_FN(st_l1hit)
 655 STAT_FN(st_l1miss)
 656 STAT_FN(ld_fbhit)
 657 STAT_FN(ld_l1hit)
 658 STAT_FN(ld_l2hit)
 659 STAT_FN(ld_llchit)
 660 STAT_FN(rmt_hit)
 661
 662 static uint64_t total_records(struct c2c_stats *stats)
 663 {
 664         uint64_t lclmiss, ldcnt, total;
 665
 666         lclmiss  = stats->lcl_dram +
 667                    stats->rmt_dram +
 668                    stats->rmt_hitm +
 669                    stats->rmt_hit;
 670
 671         ldcnt    = lclmiss +
 672                    stats->ld_fbhit +
 673                    stats->ld_l1hit +
 674                    stats->ld_l2hit +
 675                    stats->ld_llchit +
 676                    stats->lcl_hitm;
 677
 678         total    = ldcnt +
 679                    stats->st_l1hit +
 680                    stats->st_l1miss;
 681
 682         return total;
 683 }
 684
 685 static int
 686 tot_recs_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 687                 struct hist_entry *he)
 688 {
 689         struct c2c_hist_entry *c2c_he;
 690         int width = c2c_width(fmt, hpp, he->hists);
 691         uint64_t tot_recs;
 692
 693         c2c_he = container_of(he, struct c2c_hist_entry, he);
 694         tot_recs = total_records(&c2c_he->stats);
 695
 696         return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs);
 697 }
 698
 699 static int64_t
 700 tot_recs_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 701              struct hist_entry *left, struct hist_entry *right)
 702 {
 703         struct c2c_hist_entry *c2c_left;
 704         struct c2c_hist_entry *c2c_right;
 705         uint64_t tot_recs_left;
 706         uint64_t tot_recs_right;
 707
 708         c2c_left  = container_of(left, struct c2c_hist_entry, he);
 709         c2c_right = container_of(right, struct c2c_hist_entry, he);
 710
 711         tot_recs_left  = total_records(&c2c_left->stats);
 712         tot_recs_right = total_records(&c2c_right->stats);
 713
 714         return tot_recs_left - tot_recs_right;
 715 }
 716
 717 static uint64_t total_loads(struct c2c_stats *stats)
 718 {
 719         uint64_t lclmiss, ldcnt;
 720
 721         lclmiss  = stats->lcl_dram +
 722                    stats->rmt_dram +
 723                    stats->rmt_hitm +
 724                    stats->rmt_hit;
 725
 726         ldcnt    = lclmiss +
 727                    stats->ld_fbhit +
 728                    stats->ld_l1hit +
 729                    stats->ld_l2hit +
 730                    stats->ld_llchit +
 731                    stats->lcl_hitm;
 732
 733         return ldcnt;
 734 }
 735
 736 static int
 737 tot_loads_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 738                 struct hist_entry *he)
 739 {
 740         struct c2c_hist_entry *c2c_he;
 741         int width = c2c_width(fmt, hpp, he->hists);
 742         uint64_t tot_recs;
 743
 744         c2c_he = container_of(he, struct c2c_hist_entry, he);
 745         tot_recs = total_loads(&c2c_he->stats);
 746
 747         return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs);
 748 }
 749
 750 static int64_t
 751 tot_loads_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 752               struct hist_entry *left, struct hist_entry *right)
 753 {
 754         struct c2c_hist_entry *c2c_left;
 755         struct c2c_hist_entry *c2c_right;
 756         uint64_t tot_recs_left;
 757         uint64_t tot_recs_right;
 758
 759         c2c_left  = container_of(left, struct c2c_hist_entry, he);
 760         c2c_right = container_of(right, struct c2c_hist_entry, he);
 761
 762         tot_recs_left  = total_loads(&c2c_left->stats);
 763         tot_recs_right = total_loads(&c2c_right->stats);
 764
 765         return tot_recs_left - tot_recs_right;
 766 }
 767
 768 typedef double (get_percent_cb)(struct c2c_hist_entry *);
 769
 770 static int
 771 percent_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 772               struct hist_entry *he, get_percent_cb get_percent)
 773 {
 774         struct c2c_hist_entry *c2c_he;
 775         int width = c2c_width(fmt, hpp, he->hists);
 776         double per;
 777
 778         c2c_he = container_of(he, struct c2c_hist_entry, he);
 779         per = get_percent(c2c_he);
 780
 781 #ifdef HAVE_SLANG_SUPPORT
 782         if (use_browser)
 783                 return __hpp__slsmg_color_printf(hpp, "%*.2f%%", width - 1, per);
 784 #endif
 785         return hpp_color_scnprintf(hpp, "%*.2f%%", width - 1, per);
 786 }
 787
 788 static double percent_hitm(struct c2c_hist_entry *c2c_he)
 789 {
 790         struct c2c_hists *hists;
 791         struct c2c_stats *stats;
 792         struct c2c_stats *total;
 793         int tot = 0, st = 0;
 794         double p;
 795
 796         hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);
 797         stats = &c2c_he->stats;
 798         total = &hists->stats;
 799
 800         switch (c2c.display) {
 801         case DISPLAY_RMT:
 802                 st  = stats->rmt_hitm;
 803                 tot = total->rmt_hitm;
 804                 break;
 805         case DISPLAY_LCL:
 806                 st  = stats->lcl_hitm;
 807                 tot = total->lcl_hitm;
 808                 break;
 809         case DISPLAY_TOT:
 810                 st  = stats->tot_hitm;
 811                 tot = total->tot_hitm;
 812         default:
 813                 break;
 814         }
 815
 816         p = tot ? (double) st / tot : 0;
 817
 818         return 100 * p;
 819 }
 820
 821 #define PERC_STR(__s, __v)                              \
 822 ({                                                      \
 823         scnprintf(__s, sizeof(__s), "%.2F%%", __v);     \
 824         __s;                                            \
 825 })
 826
 827 static int
 828 percent_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 829                    struct hist_entry *he)
 830 {
 831         struct c2c_hist_entry *c2c_he;
 832         int width = c2c_width(fmt, hpp, he->hists);
 833         char buf[10];
 834         double per;
 835
 836         c2c_he = container_of(he, struct c2c_hist_entry, he);
 837         per = percent_hitm(c2c_he);
 838         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 839 }
 840
 841 static int
 842 percent_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 843                    struct hist_entry *he)
 844 {
 845         return percent_color(fmt, hpp, he, percent_hitm);
 846 }
 847
 848 static int64_t
 849 percent_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 850                  struct hist_entry *left, struct hist_entry *right)
 851 {
 852         struct c2c_hist_entry *c2c_left;
 853         struct c2c_hist_entry *c2c_right;
 854         double per_left;
 855         double per_right;
 856
 857         c2c_left  = container_of(left, struct c2c_hist_entry, he);
 858         c2c_right = container_of(right, struct c2c_hist_entry, he);
 859
 860         per_left  = percent_hitm(c2c_left);
 861         per_right = percent_hitm(c2c_right);
 862
 863         return per_left - per_right;
 864 }
 865
 866 static struct c2c_stats *he_stats(struct hist_entry *he)
 867 {
 868         struct c2c_hist_entry *c2c_he;
 869
 870         c2c_he = container_of(he, struct c2c_hist_entry, he);
 871         return &c2c_he->stats;
 872 }
 873
 874 static struct c2c_stats *total_stats(struct hist_entry *he)
 875 {
 876         struct c2c_hists *hists;
 877
 878         hists = container_of(he->hists, struct c2c_hists, hists);
 879         return &hists->stats;
 880 }
 881
 882 static double percent(u32 st, u32 tot)
 883 {
 884         return tot ? 100. * (double) st / (double) tot : 0;
 885 }
 886
 887 #define PERCENT(__h, __f) percent(he_stats(__h)->__f, total_stats(__h)->__f)
 888
 889 #define PERCENT_FN(__f)                                                         \
 890 static double percent_ ## __f(struct c2c_hist_entry *c2c_he)                    \
 891 {                                                                               \
 892         struct c2c_hists *hists;                                                \
 893                                                                                 \
 894         hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);        \
 895         return percent(c2c_he->stats.__f, hists->stats.__f);                    \
 896 }
 897
 898 PERCENT_FN(rmt_hitm)
 899 PERCENT_FN(lcl_hitm)
 900 PERCENT_FN(st_l1hit)
 901 PERCENT_FN(st_l1miss)
 902
 903 static int
 904 percent_rmt_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 905                        struct hist_entry *he)
 906 {
 907         int width = c2c_width(fmt, hpp, he->hists);
 908         double per = PERCENT(he, rmt_hitm);
 909         char buf[10];
 910
 911         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 912 }
 913
 914 static int
 915 percent_rmt_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 916                        struct hist_entry *he)
 917 {
 918         return percent_color(fmt, hpp, he, percent_rmt_hitm);
 919 }
 920
 921 static int64_t
 922 percent_rmt_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 923                      struct hist_entry *left, struct hist_entry *right)
 924 {
 925         double per_left;
 926         double per_right;
 927
 928         per_left  = PERCENT(left, lcl_hitm);
 929         per_right = PERCENT(right, lcl_hitm);
 930
 931         return per_left - per_right;
 932 }
 933
 934 static int
 935 percent_lcl_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 936                        struct hist_entry *he)
 937 {
 938         int width = c2c_width(fmt, hpp, he->hists);
 939         double per = PERCENT(he, lcl_hitm);
 940         char buf[10];
 941
 942         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 943 }
 944
 945 static int
 946 percent_lcl_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 947                        struct hist_entry *he)
 948 {
 949         return percent_color(fmt, hpp, he, percent_lcl_hitm);
 950 }
 951
 952 static int64_t
 953 percent_lcl_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 954                      struct hist_entry *left, struct hist_entry *right)
 955 {
 956         double per_left;
 957         double per_right;
 958
 959         per_left  = PERCENT(left, lcl_hitm);
 960         per_right = PERCENT(right, lcl_hitm);
 961
 962         return per_left - per_right;
 963 }
 964
 965 static int
 966 percent_stores_l1hit_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 967                            struct hist_entry *he)
 968 {
 969         int width = c2c_width(fmt, hpp, he->hists);
 970         double per = PERCENT(he, st_l1hit);
 971         char buf[10];
 972
 973         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 974 }
 975
 976 static int
 977 percent_stores_l1hit_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 978                            struct hist_entry *he)
 979 {
 980         return percent_color(fmt, hpp, he, percent_st_l1hit);
 981 }
 982
 983 static int64_t
 984 percent_stores_l1hit_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 985                         struct hist_entry *left, struct hist_entry *right)
 986 {
 987         double per_left;
 988         double per_right;
 989
 990         per_left  = PERCENT(left, st_l1hit);
 991         per_right = PERCENT(right, st_l1hit);
 992
 993         return per_left - per_right;
 994 }
 995
 996 static int
 997 percent_stores_l1miss_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 998                            struct hist_entry *he)
 999 {
1000         int width = c2c_width(fmt, hpp, he->hists);
1001         double per = PERCENT(he, st_l1miss);
1002         char buf[10];
1003
1004         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
1005 }
1006
1007 static int
1008 percent_stores_l1miss_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1009                             struct hist_entry *he)
1010 {
1011         return percent_color(fmt, hpp, he, percent_st_l1miss);
1012 }
1013
1014 static int64_t
1015 percent_stores_l1miss_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
1016                           struct hist_entry *left, struct hist_entry *right)
1017 {
1018         double per_left;
1019         double per_right;
1020
1021         per_left  = PERCENT(left, st_l1miss);
1022         per_right = PERCENT(right, st_l1miss);
1023
1024         return per_left - per_right;
1025 }
1026
1027 STAT_FN(lcl_dram)
1028 STAT_FN(rmt_dram)
1029
1030 static int
1031 pid_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1032           struct hist_entry *he)
1033 {
1034         int width = c2c_width(fmt, hpp, he->hists);
1035
1036         return scnprintf(hpp->buf, hpp->size, "%*d", width, he->thread->pid_);
1037 }
1038
1039 static int64_t
1040 pid_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
1041         struct hist_entry *left, struct hist_entry *right)
1042 {
1043         return left->thread->pid_ - right->thread->pid_;
1044 }
1045
1046 static int64_t
1047 empty_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
1048           struct hist_entry *left __maybe_unused,
1049           struct hist_entry *right __maybe_unused)
1050 {
1051         return 0;
1052 }
1053
1054 static int display_metrics(struct perf_hpp *hpp, u32 val, u32 sum)
1055 {
1056         int ret;
1057
1058         if (sum != 0)
1059                 ret = scnprintf(hpp->buf, hpp->size, "%5.1f%% ",
1060                                 percent(val, sum));
1061         else
1062                 ret = scnprintf(hpp->buf, hpp->size, "%6s ", "n/a");
1063
1064         return ret;
1065 }
1066
1067 static int
1068 node_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp,
1069            struct hist_entry *he)
1070 {
1071         struct c2c_hist_entry *c2c_he;
1072         bool first = true;
1073         int node;
1074         int ret = 0;
1075
1076         c2c_he = container_of(he, struct c2c_hist_entry, he);
1077
1078         for (node = 0; node < c2c.nodes_cnt; node++) {
1079                 DECLARE_BITMAP(set, c2c.cpus_cnt);
1080
1081                 bitmap_zero(set, c2c.cpus_cnt);
1082                 bitmap_and(set, c2c_he->cpuset, c2c.nodes[node], c2c.cpus_cnt);
1083
1084                 if (bitmap_empty(set, c2c.cpus_cnt)) {
1085                         if (c2c.node_info == 1) {
1086                                 ret = scnprintf(hpp->buf, hpp->size, "%21s", " ");
1087                                 advance_hpp(hpp, ret);
1088                         }
1089                         continue;
1090                 }
1091
1092                 if (!first) {
1093                         ret = scnprintf(hpp->buf, hpp->size, " ");
1094                         advance_hpp(hpp, ret);
1095                 }
1096
1097                 switch (c2c.node_info) {
1098                 case 0:
1099                         ret = scnprintf(hpp->buf, hpp->size, "%2d", node);
1100                         advance_hpp(hpp, ret);
1101                         break;
1102                 case 1:
1103                 {
1104                         int num = bitmap_weight(set, c2c.cpus_cnt);
1105                         struct c2c_stats *stats = &c2c_he->node_stats[node];
1106
1107                         ret = scnprintf(hpp->buf, hpp->size, "%2d{%2d ", node, num);
1108                         advance_hpp(hpp, ret);
1109
1110                         switch (c2c.display) {
1111                         case DISPLAY_RMT:
1112                                 ret = display_metrics(hpp, stats->rmt_hitm,
1113                                                       c2c_he->stats.rmt_hitm);
1114                                 break;
1115                         case DISPLAY_LCL:
1116                                 ret = display_metrics(hpp, stats->lcl_hitm,
1117                                                       c2c_he->stats.lcl_hitm);
1118                                 break;
1119                         case DISPLAY_TOT:
1120                                 ret = display_metrics(hpp, stats->tot_hitm,
1121                                                       c2c_he->stats.tot_hitm);
1122                                 break;
1123                         default:
1124                                 break;
1125                         }
1126
1127                         advance_hpp(hpp, ret);
1128
1129                         if (c2c_he->stats.store > 0) {
1130                                 ret = scnprintf(hpp->buf, hpp->size, "%5.1f%%}",
1131                                                 percent(stats->store, c2c_he->stats.store));
1132                         } else {
1133                                 ret = scnprintf(hpp->buf, hpp->size, "%6s}", "n/a");
1134                         }
1135
1136                         advance_hpp(hpp, ret);
1137                         break;
1138                 }
1139                 case 2:
1140                         ret = scnprintf(hpp->buf, hpp->size, "%2d{", node);
1141                         advance_hpp(hpp, ret);
1142
1143                         ret = bitmap_scnprintf(set, c2c.cpus_cnt, hpp->buf, hpp->size);
1144                         advance_hpp(hpp, ret);
1145
1146                         ret = scnprintf(hpp->buf, hpp->size, "}");
1147                         advance_hpp(hpp, ret);
1148                         break;
1149                 default:
1150                         break;
1151                 }
1152
1153                 first = false;
1154         }
1155
1156         return 0;
1157 }
1158
1159 static int
1160 mean_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1161            struct hist_entry *he, double mean)
1162 {
1163         int width = c2c_width(fmt, hpp, he->hists);
1164         char buf[10];
1165
1166         scnprintf(buf, 10, "%6.0f", mean);
1167         return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
1168 }
1169
1170 #define MEAN_ENTRY(__func, __val)                                               \
1171 static int                                                                      \
1172 __func(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, struct hist_entry *he)   \
1173 {                                                                               \
1174         struct c2c_hist_entry *c2c_he;                                          \
1175         c2c_he = container_of(he, struct c2c_hist_entry, he);                   \
1176         return mean_entry(fmt, hpp, he, avg_stats(&c2c_he->cstats.__val));      \
1177 }
1178
1179 MEAN_ENTRY(mean_rmt_entry,  rmt_hitm);
1180 MEAN_ENTRY(mean_lcl_entry,  lcl_hitm);
1181 MEAN_ENTRY(mean_load_entry, load);
1182
1183 static int
1184 cpucnt_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1185              struct hist_entry *he)
1186 {
1187         struct c2c_hist_entry *c2c_he;
1188         int width = c2c_width(fmt, hpp, he->hists);
1189         char buf[10];
1190
1191         c2c_he = container_of(he, struct c2c_hist_entry, he);
1192
1193         scnprintf(buf, 10, "%d", bitmap_weight(c2c_he->cpuset, c2c.cpus_cnt));
1194         return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
1195 }
1196
1197 static int
1198 cl_idx_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1199              struct hist_entry *he)
1200 {
1201         struct c2c_hist_entry *c2c_he;
1202         int width = c2c_width(fmt, hpp, he->hists);
1203         char buf[10];
1204
1205         c2c_he = container_of(he, struct c2c_hist_entry, he);
1206
1207         scnprintf(buf, 10, "%u", c2c_he->cacheline_idx);
1208         return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
1209 }
1210
1211 static int
1212 cl_idx_empty_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1213                    struct hist_entry *he)
1214 {
1215         int width = c2c_width(fmt, hpp, he->hists);
1216
1217         return scnprintf(hpp->buf, hpp->size, "%*s", width, "");
1218 }
1219
1220 #define HEADER_LOW(__h)                 \
1221         {                               \
1222                 .line[1] = {            \
1223                         .text = __h,    \
1224                 },                      \
1225         }
1226
1227 #define HEADER_BOTH(__h0, __h1)         \
1228         {                               \
1229                 .line[0] = {            \
1230                         .text = __h0,   \
1231                 },                      \
1232                 .line[1] = {            \
1233                         .text = __h1,   \
1234                 },                      \
1235         }
1236
1237 #define HEADER_SPAN(__h0, __h1, __s)    \
1238         {                               \
1239                 .line[0] = {            \
1240                         .text = __h0,   \
1241                         .span = __s,    \
1242                 },                      \
1243                 .line[1] = {            \
1244                         .text = __h1,   \
1245                 },                      \
1246         }
1247
1248 #define HEADER_SPAN_LOW(__h)            \
1249         {                               \
1250                 .line[1] = {            \
1251                         .text = __h,    \
1252                 },                      \
1253         }
1254
1255 static struct c2c_dimension dim_dcacheline = {
1256         .header         = HEADER_SPAN("--- Cacheline ----", "Address", 2),
1257         .name           = "dcacheline",
1258         .cmp            = dcacheline_cmp,
1259         .entry          = dcacheline_entry,
1260         .width          = 18,
1261 };
1262
1263 static struct c2c_dimension dim_dcacheline_node = {
1264         .header         = HEADER_LOW("Node"),
1265         .name           = "dcacheline_node",
1266         .cmp            = empty_cmp,
1267         .entry          = dcacheline_node_entry,
1268         .width          = 4,
1269 };
1270
1271 static struct c2c_dimension dim_dcacheline_count = {
1272         .header         = HEADER_LOW("PA cnt"),
1273         .name           = "dcacheline_count",
1274         .cmp            = empty_cmp,
1275         .entry          = dcacheline_node_count,
1276         .width          = 6,
1277 };
1278
1279 static struct c2c_header header_offset_tui = HEADER_SPAN("-----", "Off", 2);
1280
1281 static struct c2c_dimension dim_offset = {
1282         .header         = HEADER_SPAN("--- Data address -", "Offset", 2),
1283         .name           = "offset",
1284         .cmp            = offset_cmp,
1285         .entry          = offset_entry,
1286         .width          = 18,
1287 };
1288
1289 static struct c2c_dimension dim_offset_node = {
1290         .header         = HEADER_LOW("Node"),
1291         .name           = "offset_node",
1292         .cmp            = empty_cmp,
1293         .entry          = dcacheline_node_entry,
1294         .width          = 4,
1295 };
1296
1297 static struct c2c_dimension dim_iaddr = {
1298         .header         = HEADER_LOW("Code address"),
1299         .name           = "iaddr",
1300         .cmp            = iaddr_cmp,
1301         .entry          = iaddr_entry,
1302         .width          = 18,
1303 };
1304
1305 static struct c2c_dimension dim_tot_hitm = {
1306         .header         = HEADER_SPAN("------- Load Hitm -------", "Total", 2),
1307         .name           = "tot_hitm",
1308         .cmp            = tot_hitm_cmp,
1309         .entry          = tot_hitm_entry,
1310         .width          = 7,
1311 };
1312
1313 static struct c2c_dimension dim_lcl_hitm = {
1314         .header         = HEADER_SPAN_LOW("LclHitm"),
1315         .name           = "lcl_hitm",
1316         .cmp            = lcl_hitm_cmp,
1317         .entry          = lcl_hitm_entry,
1318         .width          = 7,
1319 };
1320
1321 static struct c2c_dimension dim_rmt_hitm = {
1322         .header         = HEADER_SPAN_LOW("RmtHitm"),
1323         .name           = "rmt_hitm",
1324         .cmp            = rmt_hitm_cmp,
1325         .entry          = rmt_hitm_entry,
1326         .width          = 7,
1327 };
1328
1329 static struct c2c_dimension dim_cl_rmt_hitm = {
1330         .header         = HEADER_SPAN("----- HITM -----", "Rmt", 1),
1331         .name           = "cl_rmt_hitm",
1332         .cmp            = rmt_hitm_cmp,
1333         .entry          = rmt_hitm_entry,
1334         .width          = 7,
1335 };
1336
1337 static struct c2c_dimension dim_cl_lcl_hitm = {
1338         .header         = HEADER_SPAN_LOW("Lcl"),
1339         .name           = "cl_lcl_hitm",
1340         .cmp            = lcl_hitm_cmp,
1341         .entry          = lcl_hitm_entry,
1342         .width          = 7,
1343 };
1344
1345 static struct c2c_dimension dim_tot_stores = {
1346         .header         = HEADER_BOTH("Total", "Stores"),
1347         .name           = "tot_stores",
1348         .cmp            = store_cmp,
1349         .entry          = store_entry,
1350         .width          = 7,
1351 };
1352
1353 static struct c2c_dimension dim_stores_l1hit = {
1354         .header         = HEADER_SPAN("---- Stores ----", "L1Hit", 1),
1355         .name           = "stores_l1hit",
1356         .cmp            = st_l1hit_cmp,
1357         .entry          = st_l1hit_entry,
1358         .width          = 7,
1359 };
1360
1361 static struct c2c_dimension dim_stores_l1miss = {
1362         .header         = HEADER_SPAN_LOW("L1Miss"),
1363         .name           = "stores_l1miss",
1364         .cmp            = st_l1miss_cmp,
1365         .entry          = st_l1miss_entry,
1366         .width          = 7,
1367 };
1368
1369 static struct c2c_dimension dim_cl_stores_l1hit = {
1370         .header         = HEADER_SPAN("-- Store Refs --", "L1 Hit", 1),
1371         .name           = "cl_stores_l1hit",
1372         .cmp            = st_l1hit_cmp,
1373         .entry          = st_l1hit_entry,
1374         .width          = 7,
1375 };
1376
1377 static struct c2c_dimension dim_cl_stores_l1miss = {
1378         .header         = HEADER_SPAN_LOW("L1 Miss"),
1379         .name           = "cl_stores_l1miss",
1380         .cmp            = st_l1miss_cmp,
1381         .entry          = st_l1miss_entry,
1382         .width          = 7,
1383 };
1384
1385 static struct c2c_dimension dim_ld_fbhit = {
1386         .header         = HEADER_SPAN("----- Core Load Hit -----", "FB", 2),
1387         .name           = "ld_fbhit",
1388         .cmp            = ld_fbhit_cmp,
1389         .entry          = ld_fbhit_entry,
1390         .width          = 7,
1391 };
1392
1393 static struct c2c_dimension dim_ld_l1hit = {
1394         .header         = HEADER_SPAN_LOW("L1"),
1395         .name           = "ld_l1hit",
1396         .cmp            = ld_l1hit_cmp,
1397         .entry          = ld_l1hit_entry,
1398         .width          = 7,
1399 };
1400
1401 static struct c2c_dimension dim_ld_l2hit = {
1402         .header         = HEADER_SPAN_LOW("L2"),
1403         .name           = "ld_l2hit",
1404         .cmp            = ld_l2hit_cmp,
1405         .entry          = ld_l2hit_entry,
1406         .width          = 7,
1407 };
1408
1409 static struct c2c_dimension dim_ld_llchit = {
1410         .header         = HEADER_SPAN("- LLC Load Hit --", "LclHit", 1),
1411         .name           = "ld_lclhit",
1412         .cmp            = ld_llchit_cmp,
1413         .entry          = ld_llchit_entry,
1414         .width          = 8,
1415 };
1416
1417 static struct c2c_dimension dim_ld_rmthit = {
1418         .header         = HEADER_SPAN("- RMT Load Hit --", "RmtHit", 1),
1419         .name           = "ld_rmthit",
1420         .cmp            = rmt_hit_cmp,
1421         .entry          = rmt_hit_entry,
1422         .width          = 8,
1423 };
1424
1425 static struct c2c_dimension dim_tot_recs = {
1426         .header         = HEADER_BOTH("Total", "records"),
1427         .name           = "tot_recs",
1428         .cmp            = tot_recs_cmp,
1429         .entry          = tot_recs_entry,
1430         .width          = 7,
1431 };
1432
1433 static struct c2c_dimension dim_tot_loads = {
1434         .header         = HEADER_BOTH("Total", "Loads"),
1435         .name           = "tot_loads",
1436         .cmp            = tot_loads_cmp,
1437         .entry          = tot_loads_entry,
1438         .width          = 7,
1439 };
1440
1441 static struct c2c_header percent_hitm_header[] = {
1442         [DISPLAY_LCL] = HEADER_BOTH("Lcl", "Hitm"),
1443         [DISPLAY_RMT] = HEADER_BOTH("Rmt", "Hitm"),
1444         [DISPLAY_TOT] = HEADER_BOTH("Tot", "Hitm"),
1445 };
1446
1447 static struct c2c_dimension dim_percent_hitm = {
1448         .name           = "percent_hitm",
1449         .cmp            = percent_hitm_cmp,
1450         .entry          = percent_hitm_entry,
1451         .color          = percent_hitm_color,
1452         .width          = 7,
1453 };
1454
1455 static struct c2c_dimension dim_percent_rmt_hitm = {
1456         .header         = HEADER_SPAN("----- HITM -----", "RmtHitm", 1),
1457         .name           = "percent_rmt_hitm",
1458         .cmp            = percent_rmt_hitm_cmp,
1459         .entry          = percent_rmt_hitm_entry,
1460         .color          = percent_rmt_hitm_color,
1461         .width          = 7,
1462 };
1463
1464 static struct c2c_dimension dim_percent_lcl_hitm = {
1465         .header         = HEADER_SPAN_LOW("LclHitm"),
1466         .name           = "percent_lcl_hitm",
1467         .cmp            = percent_lcl_hitm_cmp,
1468         .entry          = percent_lcl_hitm_entry,
1469         .color          = percent_lcl_hitm_color,
1470         .width          = 7,
1471 };
1472
1473 static struct c2c_dimension dim_percent_stores_l1hit = {
1474         .header         = HEADER_SPAN("-- Store Refs --", "L1 Hit", 1),
1475         .name           = "percent_stores_l1hit",
1476         .cmp            = percent_stores_l1hit_cmp,
1477         .entry          = percent_stores_l1hit_entry,
1478         .color          = percent_stores_l1hit_color,
1479         .width          = 7,
1480 };
1481
1482 static struct c2c_dimension dim_percent_stores_l1miss = {
1483         .header         = HEADER_SPAN_LOW("L1 Miss"),
1484         .name           = "percent_stores_l1miss",
1485         .cmp            = percent_stores_l1miss_cmp,
1486         .entry          = percent_stores_l1miss_entry,
1487         .color          = percent_stores_l1miss_color,
1488         .width          = 7,
1489 };
1490
1491 static struct c2c_dimension dim_dram_lcl = {
1492         .header         = HEADER_SPAN("--- Load Dram ----", "Lcl", 1),
1493         .name           = "dram_lcl",
1494         .cmp            = lcl_dram_cmp,
1495         .entry          = lcl_dram_entry,
1496         .width          = 8,
1497 };
1498
1499 static struct c2c_dimension dim_dram_rmt = {
1500         .header         = HEADER_SPAN_LOW("Rmt"),
1501         .name           = "dram_rmt",
1502         .cmp            = rmt_dram_cmp,
1503         .entry          = rmt_dram_entry,
1504         .width          = 8,
1505 };
1506
1507 static struct c2c_dimension dim_pid = {
1508         .header         = HEADER_LOW("Pid"),
1509         .name           = "pid",
1510         .cmp            = pid_cmp,
1511         .entry          = pid_entry,
1512         .width          = 7,
1513 };
1514
1515 static struct c2c_dimension dim_tid = {
1516         .header         = HEADER_LOW("Tid"),
1517         .name           = "tid",
1518         .se             = &sort_thread,
1519 };
1520
1521 static struct c2c_dimension dim_symbol = {
1522         .name           = "symbol",
1523         .se             = &sort_sym,
1524 };
1525
1526 static struct c2c_dimension dim_dso = {
1527         .header         = HEADER_BOTH("Shared", "Object"),
1528         .name           = "dso",
1529         .se             = &sort_dso,
1530 };
1531
1532 static struct c2c_header header_node[3] = {
1533         HEADER_LOW("Node"),
1534         HEADER_LOW("Node{cpus %hitms %stores}"),
1535         HEADER_LOW("Node{cpu list}"),
1536 };
1537
1538 static struct c2c_dimension dim_node = {
1539         .name           = "node",
1540         .cmp            = empty_cmp,
1541         .entry          = node_entry,
1542         .width          = 4,
1543 };
1544
1545 static struct c2c_dimension dim_mean_rmt = {
1546         .header         = HEADER_SPAN("---------- cycles ----------", "rmt hitm", 2),
1547         .name           = "mean_rmt",
1548         .cmp            = empty_cmp,
1549         .entry          = mean_rmt_entry,
1550         .width          = 8,
1551 };
1552
1553 static struct c2c_dimension dim_mean_lcl = {
1554         .header         = HEADER_SPAN_LOW("lcl hitm"),
1555         .name           = "mean_lcl",
1556         .cmp            = empty_cmp,
1557         .entry          = mean_lcl_entry,
1558         .width          = 8,
1559 };
1560
1561 static struct c2c_dimension dim_mean_load = {
1562         .header         = HEADER_SPAN_LOW("load"),
1563         .name           = "mean_load",
1564         .cmp            = empty_cmp,
1565         .entry          = mean_load_entry,
1566         .width          = 8,
1567 };
1568
1569 static struct c2c_dimension dim_cpucnt = {
1570         .header         = HEADER_BOTH("cpu", "cnt"),
1571         .name           = "cpucnt",
1572         .cmp            = empty_cmp,
1573         .entry          = cpucnt_entry,
1574         .width          = 8,
1575 };
1576
1577 static struct c2c_dimension dim_srcline = {
1578         .name           = "cl_srcline",
1579         .se             = &sort_srcline,
1580 };
1581
1582 static struct c2c_dimension dim_dcacheline_idx = {
1583         .header         = HEADER_LOW("Index"),
1584         .name           = "cl_idx",
1585         .cmp            = empty_cmp,
1586         .entry          = cl_idx_entry,
1587         .width          = 5,
1588 };
1589
1590 static struct c2c_dimension dim_dcacheline_num = {
1591         .header         = HEADER_LOW("Num"),
1592         .name           = "cl_num",
1593         .cmp            = empty_cmp,
1594         .entry          = cl_idx_entry,
1595         .width          = 5,
1596 };
1597
1598 static struct c2c_dimension dim_dcacheline_num_empty = {
1599         .header         = HEADER_LOW("Num"),
1600         .name           = "cl_num_empty",
1601         .cmp            = empty_cmp,
1602         .entry          = cl_idx_empty_entry,
1603         .width          = 5,
1604 };
1605
1606 static struct c2c_dimension *dimensions[] = {
1607         &dim_dcacheline,
1608         &dim_dcacheline_node,
1609         &dim_dcacheline_count,
1610         &dim_offset,
1611         &dim_offset_node,
1612         &dim_iaddr,
1613         &dim_tot_hitm,
1614         &dim_lcl_hitm,
1615         &dim_rmt_hitm,
1616         &dim_cl_lcl_hitm,
1617         &dim_cl_rmt_hitm,
1618         &dim_tot_stores,
1619         &dim_stores_l1hit,
1620         &dim_stores_l1miss,
1621         &dim_cl_stores_l1hit,
1622         &dim_cl_stores_l1miss,
1623         &dim_ld_fbhit,
1624         &dim_ld_l1hit,
1625         &dim_ld_l2hit,
1626         &dim_ld_llchit,
1627         &dim_ld_rmthit,
1628         &dim_tot_recs,
1629         &dim_tot_loads,
1630         &dim_percent_hitm,
1631         &dim_percent_rmt_hitm,
1632         &dim_percent_lcl_hitm,
1633         &dim_percent_stores_l1hit,
1634         &dim_percent_stores_l1miss,
1635         &dim_dram_lcl,
1636         &dim_dram_rmt,
1637         &dim_pid,
1638         &dim_tid,
1639         &dim_symbol,
1640         &dim_dso,
1641         &dim_node,
1642         &dim_mean_rmt,
1643         &dim_mean_lcl,
1644         &dim_mean_load,
1645         &dim_cpucnt,
1646         &dim_srcline,
1647         &dim_dcacheline_idx,
1648         &dim_dcacheline_num,
1649         &dim_dcacheline_num_empty,
1650         NULL,
1651 };
1652
1653 static void fmt_free(struct perf_hpp_fmt *fmt)
1654 {
1655         struct c2c_fmt *c2c_fmt;
1656
1657         c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
1658         free(c2c_fmt);
1659 }
1660
1661 static bool fmt_equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
1662 {
1663         struct c2c_fmt *c2c_a = container_of(a, struct c2c_fmt, fmt);
1664         struct c2c_fmt *c2c_b = container_of(b, struct c2c_fmt, fmt);
1665
1666         return c2c_a->dim == c2c_b->dim;
1667 }
1668
1669 static struct c2c_dimension *get_dimension(const char *name)
1670 {
1671         unsigned int i;
1672
1673         for (i = 0; dimensions[i]; i++) {
1674                 struct c2c_dimension *dim = dimensions[i];
1675
1676                 if (!strcmp(dim->name, name))
1677                         return dim;
1678         }
1679
1680         return NULL;
1681 }
1682
1683 static int c2c_se_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1684                         struct hist_entry *he)
1685 {
1686         struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
1687         struct c2c_dimension *dim = c2c_fmt->dim;
1688         size_t len = fmt->user_len;
1689
1690         if (!len) {
1691                 len = hists__col_len(he->hists, dim->se->se_width_idx);
1692
1693                 if (dim == &dim_symbol || dim == &dim_srcline)
1694                         len = symbol_width(he->hists, dim->se);
1695         }
1696
1697         return dim->se->se_snprintf(he, hpp->buf, hpp->size, len);
1698 }
1699
1700 static int64_t c2c_se_cmp(struct perf_hpp_fmt *fmt,
1701                           struct hist_entry *a, struct hist_entry *b)
1702 {
1703         struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
1704         struct c2c_dimension *dim = c2c_fmt->dim;
1705
1706         return dim->se->se_cmp(a, b);
1707 }
1708
1709 static int64_t c2c_se_collapse(struct perf_hpp_fmt *fmt,
1710                                struct hist_entry *a, struct hist_entry *b)
1711 {
1712         struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
1713         struct c2c_dimension *dim = c2c_fmt->dim;
1714         int64_t (*collapse_fn)(struct hist_entry *, struct hist_entry *);
1715
1716         collapse_fn = dim->se->se_collapse ?: dim->se->se_cmp;
1717         return collapse_fn(a, b);
1718 }
1719
1720 static struct c2c_fmt *get_format(const char *name)
1721 {
1722         struct c2c_dimension *dim = get_dimension(name);
1723         struct c2c_fmt *c2c_fmt;
1724         struct perf_hpp_fmt *fmt;
1725
1726         if (!dim)
1727                 return NULL;
1728
1729         c2c_fmt = zalloc(sizeof(*c2c_fmt));
1730         if (!c2c_fmt)
1731                 return NULL;
1732
1733         c2c_fmt->dim = dim;
1734
1735         fmt = &c2c_fmt->fmt;
1736         INIT_LIST_HEAD(&fmt->list);
1737         INIT_LIST_HEAD(&fmt->sort_list);
1738
1739         fmt->cmp        = dim->se ? c2c_se_cmp   : dim->cmp;
1740         fmt->sort       = dim->se ? c2c_se_cmp   : dim->cmp;
1741         fmt->color      = dim->se ? NULL         : dim->color;
1742         fmt->entry      = dim->se ? c2c_se_entry : dim->entry;
1743         fmt->header     = c2c_header;
1744         fmt->width      = c2c_width;
1745         fmt->collapse   = dim->se ? c2c_se_collapse : dim->cmp;
1746         fmt->equal      = fmt_equal;
1747         fmt->free       = fmt_free;
1748
1749         return c2c_fmt;
1750 }
1751
1752 static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name)
1753 {
1754         struct c2c_fmt *c2c_fmt = get_format(name);
1755
1756         if (!c2c_fmt) {
1757                 reset_dimensions();
1758                 return output_field_add(hpp_list, name);
1759         }
1760
1761         perf_hpp_list__column_register(hpp_list, &c2c_fmt->fmt);
1762         return 0;
1763 }
1764
1765 static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name)
1766 {
1767         struct c2c_fmt *c2c_fmt = get_format(name);
1768         struct c2c_dimension *dim;
1769
1770         if (!c2c_fmt) {
1771                 reset_dimensions();
1772                 return sort_dimension__add(hpp_list, name, NULL, 0);
1773         }
1774
1775         dim = c2c_fmt->dim;
1776         if (dim == &dim_dso)
1777                 hpp_list->dso = 1;
1778
1779         perf_hpp_list__register_sort_field(hpp_list, &c2c_fmt->fmt);
1780         return 0;
1781 }
1782
1783 #define PARSE_LIST(_list, _fn)                                                  \
1784         do {                                                                    \
1785                 char *tmp, *tok;                                                \
1786                 ret = 0;                                                        \
1787                                                                                 \
1788                 if (!_list)                                                     \
1789                         break;                                                  \
1790                                                                                 \
1791                 for (tok = strtok_r((char *)_list, ", ", &tmp);                 \
1792                                 tok; tok = strtok_r(NULL, ", ", &tmp)) {        \
1793                         ret = _fn(hpp_list, tok);                               \
1794                         if (ret == -EINVAL) {                                   \
1795                                 pr_err("Invalid --fields key: `%s'", tok);      \
1796                                 break;                                          \
1797                         } else if (ret == -ESRCH) {                             \
1798                                 pr_err("Unknown --fields key: `%s'", tok);      \
1799                                 break;                                          \
1800                         }                                                       \
1801                 }                                                               \
1802         } while (0)
1803
1804 static int hpp_list__parse(struct perf_hpp_list *hpp_list,
1805                            const char *output_,
1806                            const char *sort_)
1807 {
1808         char *output = output_ ? strdup(output_) : NULL;
1809         char *sort   = sort_   ? strdup(sort_) : NULL;
1810         int ret;
1811
1812         PARSE_LIST(output, c2c_hists__init_output);
1813         PARSE_LIST(sort,   c2c_hists__init_sort);
1814
1815         /* copy sort keys to output fields */
1816         perf_hpp__setup_output_field(hpp_list);
1817
1818         /*
1819          * We dont need other sorting keys other than those
1820          * we already specified. It also really slows down
1821          * the processing a lot with big number of output
1822          * fields, so switching this off for c2c.
1823          */
1824
1825 #if 0
1826         /* and then copy output fields to sort keys */
1827         perf_hpp__append_sort_keys(&hists->list);
1828 #endif
1829
1830         free(output);
1831         free(sort);
1832         return ret;
1833 }
1834
1835 static int c2c_hists__init(struct c2c_hists *hists,
1836                            const char *sort,
1837                            int nr_header_lines)
1838 {
1839         __hists__init(&hists->hists, &hists->list);
1840
1841         /*
1842          * Initialize only with sort fields, we need to resort
1843          * later anyway, and that's where we add output fields
1844          * as well.
1845          */
1846         perf_hpp_list__init(&hists->list);
1847
1848         /* Overload number of header lines.*/
1849         hists->list.nr_header_lines = nr_header_lines;
1850
1851         return hpp_list__parse(&hists->list, NULL, sort);
1852 }
1853
1854 static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
1855                              const char *output,
1856                              const char *sort)
1857 {
1858         perf_hpp__reset_output_field(&c2c_hists->list);
1859         return hpp_list__parse(&c2c_hists->list, output, sort);
1860 }
1861
1862 #define DISPLAY_LINE_LIMIT  0.001
1863
1864 static u8 filter_display(u32 val, u32 sum)
1865 {
1866         if (sum == 0 || ((double)val / sum) < DISPLAY_LINE_LIMIT)
1867                 return HIST_FILTER__C2C;
1868
1869         return 0;
1870 }
1871
1872 static bool he__display(struct hist_entry *he, struct c2c_stats *stats)
1873 {
1874         struct c2c_hist_entry *c2c_he;
1875
1876         if (c2c.show_all)
1877                 return true;
1878
1879         c2c_he = container_of(he, struct c2c_hist_entry, he);
1880
1881         switch (c2c.display) {
1882         case DISPLAY_LCL:
1883                 he->filtered = filter_display(c2c_he->stats.lcl_hitm,
1884                                               stats->lcl_hitm);
1885                 break;
1886         case DISPLAY_RMT:
1887                 he->filtered = filter_display(c2c_he->stats.rmt_hitm,
1888                                               stats->rmt_hitm);
1889                 break;
1890         case DISPLAY_TOT:
1891                 he->filtered = filter_display(c2c_he->stats.tot_hitm,
1892                                               stats->tot_hitm);
1893                 break;
1894         default:
1895                 break;
1896         }
1897
1898         return he->filtered == 0;
1899 }
1900
1901 static inline bool is_valid_hist_entry(struct hist_entry *he)
1902 {
1903         struct c2c_hist_entry *c2c_he;
1904         bool has_record = false;
1905
1906         c2c_he = container_of(he, struct c2c_hist_entry, he);
1907
1908         /* It's a valid entry if contains stores */
1909         if (c2c_he->stats.store)
1910                 return true;
1911
1912         switch (c2c.display) {
1913         case DISPLAY_LCL:
1914                 has_record = !!c2c_he->stats.lcl_hitm;
1915                 break;
1916         case DISPLAY_RMT:
1917                 has_record = !!c2c_he->stats.rmt_hitm;
1918                 break;
1919         case DISPLAY_TOT:
1920                 has_record = !!c2c_he->stats.tot_hitm;
1921                 break;
1922         default:
1923                 break;
1924         }
1925
1926         return has_record;
1927 }
1928
1929 static void set_node_width(struct c2c_hist_entry *c2c_he, int len)
1930 {
1931         struct c2c_dimension *dim;
1932
1933         dim = &c2c.hists == c2c_he->hists ?
1934               &dim_dcacheline_node : &dim_offset_node;
1935
1936         if (len > dim->width)
1937                 dim->width = len;
1938 }
1939
1940 static int set_nodestr(struct c2c_hist_entry *c2c_he)
1941 {
1942         char buf[30];
1943         int len;
1944
1945         if (c2c_he->nodestr)
1946                 return 0;
1947
1948         if (!bitmap_empty(c2c_he->nodeset, c2c.nodes_cnt)) {
1949                 len = bitmap_scnprintf(c2c_he->nodeset, c2c.nodes_cnt,
1950                                       buf, sizeof(buf));
1951         } else {
1952                 len = scnprintf(buf, sizeof(buf), "N/A");
1953         }
1954
1955         set_node_width(c2c_he, len);
1956         c2c_he->nodestr = strdup(buf);
1957         return c2c_he->nodestr ? 0 : -ENOMEM;
1958 }
1959
1960 static void calc_width(struct c2c_hist_entry *c2c_he)
1961 {
1962         struct c2c_hists *c2c_hists;
1963
1964         c2c_hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);
1965         hists__calc_col_len(&c2c_hists->hists, &c2c_he->he);
1966         set_nodestr(c2c_he);
1967 }
1968
1969 static int filter_cb(struct hist_entry *he, void *arg __maybe_unused)
1970 {
1971         struct c2c_hist_entry *c2c_he;
1972
1973         c2c_he = container_of(he, struct c2c_hist_entry, he);
1974
1975         if (c2c.show_src && !he->srcline)
1976                 he->srcline = hist_entry__srcline(he);
1977
1978         calc_width(c2c_he);
1979
1980         if (!is_valid_hist_entry(he))
1981                 he->filtered = HIST_FILTER__C2C;
1982
1983         return 0;
1984 }
1985
1986 static int resort_cl_cb(struct hist_entry *he, void *arg __maybe_unused)
1987 {
1988         struct c2c_hist_entry *c2c_he;
1989         struct c2c_hists *c2c_hists;
1990         bool display = he__display(he, &c2c.shared_clines_stats);
1991
1992         c2c_he = container_of(he, struct c2c_hist_entry, he);
1993         c2c_hists = c2c_he->hists;
1994
1995         if (display && c2c_hists) {
1996                 static unsigned int idx;
1997
1998                 c2c_he->cacheline_idx = idx++;
1999                 calc_width(c2c_he);
2000
2001                 c2c_hists__reinit(c2c_hists, c2c.cl_output, c2c.cl_resort);
2002
2003                 hists__collapse_resort(&c2c_hists->hists, NULL);
2004                 hists__output_resort_cb(&c2c_hists->hists, NULL, filter_cb);
2005         }
2006
2007         return 0;
2008 }
2009
2010 static void setup_nodes_header(void)
2011 {
2012         dim_node.header = header_node[c2c.node_info];
2013 }
2014
2015 static int setup_nodes(struct perf_session *session)
2016 {
2017         struct numa_node *n;
2018         unsigned long **nodes;
2019         int node, idx;
2020         struct perf_cpu cpu;
2021         int *cpu2node;
2022
2023         if (c2c.node_info > 2)
2024                 c2c.node_info = 2;
2025
2026         c2c.nodes_cnt = session->header.env.nr_numa_nodes;
2027         c2c.cpus_cnt  = session->header.env.nr_cpus_avail;
2028
2029         n = session->header.env.numa_nodes;
2030         if (!n)
2031                 return -EINVAL;
2032
2033         nodes = zalloc(sizeof(unsigned long *) * c2c.nodes_cnt);
2034         if (!nodes)
2035                 return -ENOMEM;
2036
2037         c2c.nodes = nodes;
2038
2039         cpu2node = zalloc(sizeof(int) * c2c.cpus_cnt);
2040         if (!cpu2node)
2041                 return -ENOMEM;
2042
2043         for (idx = 0; idx < c2c.cpus_cnt; idx++)
2044                 cpu2node[idx] = -1;
2045
2046         c2c.cpu2node = cpu2node;
2047
2048         for (node = 0; node < c2c.nodes_cnt; node++) {
2049                 struct perf_cpu_map *map = n[node].map;
2050                 unsigned long *set;
2051
2052                 set = bitmap_zalloc(c2c.cpus_cnt);
2053                 if (!set)
2054                         return -ENOMEM;
2055
2056                 nodes[node] = set;
2057
2058                 /* empty node, skip */
2059                 if (perf_cpu_map__empty(map))
2060                         continue;
2061
2062                 perf_cpu_map__for_each_cpu(cpu, idx, map) {
2063                         set_bit(cpu.cpu, set);
2064
2065                         if (WARN_ONCE(cpu2node[cpu.cpu] != -1, "node/cpu topology bug"))
2066                                 return -EINVAL;
2067
2068                         cpu2node[cpu.cpu] = node;
2069                 }
2070         }
2071
2072         setup_nodes_header();
2073         return 0;
2074 }
2075
2076 #define HAS_HITMS(__h) ((__h)->stats.lcl_hitm || (__h)->stats.rmt_hitm)
2077
2078 static int resort_shared_cl_cb(struct hist_entry *he, void *arg __maybe_unused)
2079 {
2080         struct c2c_hist_entry *c2c_he;
2081         c2c_he = container_of(he, struct c2c_hist_entry, he);
2082
2083         if (HAS_HITMS(c2c_he)) {
2084                 c2c.shared_clines++;
2085                 c2c_add_stats(&c2c.shared_clines_stats, &c2c_he->stats);
2086         }
2087
2088         return 0;
2089 }
2090
2091 static int hists__iterate_cb(struct hists *hists, hists__resort_cb_t cb)
2092 {
2093         struct rb_node *next = rb_first_cached(&hists->entries);
2094         int ret = 0;
2095
2096         while (next) {
2097                 struct hist_entry *he;
2098
2099                 he = rb_entry(next, struct hist_entry, rb_node);
2100                 ret = cb(he, NULL);
2101                 if (ret)
2102                         break;
2103                 next = rb_next(&he->rb_node);
2104         }
2105
2106         return ret;
2107 }
2108
2109 static void print_c2c__display_stats(FILE *out)
2110 {
2111         int llc_misses;
2112         struct c2c_stats *stats = &c2c.hists.stats;
2113
2114         llc_misses = stats->lcl_dram +
2115                      stats->rmt_dram +
2116                      stats->rmt_hit +
2117                      stats->rmt_hitm;
2118
2119         fprintf(out, "=================================================\n");
2120         fprintf(out, "            Trace Event Information              \n");
2121         fprintf(out, "=================================================\n");
2122         fprintf(out, "  Total records                     : %10d\n", stats->nr_entries);
2123         fprintf(out, "  Locked Load/Store Operations      : %10d\n", stats->locks);
2124         fprintf(out, "  Load Operations                   : %10d\n", stats->load);
2125         fprintf(out, "  Loads - uncacheable               : %10d\n", stats->ld_uncache);
2126         fprintf(out, "  Loads - IO                        : %10d\n", stats->ld_io);
2127         fprintf(out, "  Loads - Miss                      : %10d\n", stats->ld_miss);
2128         fprintf(out, "  Loads - no mapping                : %10d\n", stats->ld_noadrs);
2129         fprintf(out, "  Load Fill Buffer Hit              : %10d\n", stats->ld_fbhit);
2130         fprintf(out, "  Load L1D hit                      : %10d\n", stats->ld_l1hit);
2131         fprintf(out, "  Load L2D hit                      : %10d\n", stats->ld_l2hit);
2132         fprintf(out, "  Load LLC hit                      : %10d\n", stats->ld_llchit + stats->lcl_hitm);
2133         fprintf(out, "  Load Local HITM                   : %10d\n", stats->lcl_hitm);
2134         fprintf(out, "  Load Remote HITM                  : %10d\n", stats->rmt_hitm);
2135         fprintf(out, "  Load Remote HIT                   : %10d\n", stats->rmt_hit);
2136         fprintf(out, "  Load Local DRAM                   : %10d\n", stats->lcl_dram);
2137         fprintf(out, "  Load Remote DRAM                  : %10d\n", stats->rmt_dram);
2138         fprintf(out, "  Load MESI State Exclusive         : %10d\n", stats->ld_excl);
2139         fprintf(out, "  Load MESI State Shared            : %10d\n", stats->ld_shared);
2140         fprintf(out, "  Load LLC Misses                   : %10d\n", llc_misses);
2141         fprintf(out, "  Load access blocked by data       : %10d\n", stats->blk_data);
2142         fprintf(out, "  Load access blocked by address    : %10d\n", stats->blk_addr);
2143         fprintf(out, "  LLC Misses to Local DRAM          : %10.1f%%\n", ((double)stats->lcl_dram/(double)llc_misses) * 100.);
2144         fprintf(out, "  LLC Misses to Remote DRAM         : %10.1f%%\n", ((double)stats->rmt_dram/(double)llc_misses) * 100.);
2145         fprintf(out, "  LLC Misses to Remote cache (HIT)  : %10.1f%%\n", ((double)stats->rmt_hit /(double)llc_misses) * 100.);
2146         fprintf(out, "  LLC Misses to Remote cache (HITM) : %10.1f%%\n", ((double)stats->rmt_hitm/(double)llc_misses) * 100.);
2147         fprintf(out, "  Store Operations                  : %10d\n", stats->store);
2148         fprintf(out, "  Store - uncacheable               : %10d\n", stats->st_uncache);
2149         fprintf(out, "  Store - no mapping                : %10d\n", stats->st_noadrs);
2150         fprintf(out, "  Store L1D Hit                     : %10d\n", stats->st_l1hit);
2151         fprintf(out, "  Store L1D Miss                    : %10d\n", stats->st_l1miss);
2152         fprintf(out, "  No Page Map Rejects               : %10d\n", stats->nomap);
2153         fprintf(out, "  Unable to parse data source       : %10d\n", stats->noparse);
2154 }
2155
2156 static void print_shared_cacheline_info(FILE *out)
2157 {
2158         struct c2c_stats *stats = &c2c.shared_clines_stats;
2159         int hitm_cnt = stats->lcl_hitm + stats->rmt_hitm;
2160
2161         fprintf(out, "=================================================\n");
2162         fprintf(out, "    Global Shared Cache Line Event Information   \n");
2163         fprintf(out, "=================================================\n");
2164         fprintf(out, "  Total Shared Cache Lines          : %10d\n", c2c.shared_clines);
2165         fprintf(out, "  Load HITs on shared lines         : %10d\n", stats->load);
2166         fprintf(out, "  Fill Buffer Hits on shared lines  : %10d\n", stats->ld_fbhit);
2167         fprintf(out, "  L1D hits on shared lines          : %10d\n", stats->ld_l1hit);
2168         fprintf(out, "  L2D hits on shared lines          : %10d\n", stats->ld_l2hit);
2169         fprintf(out, "  LLC hits on shared lines          : %10d\n", stats->ld_llchit + stats->lcl_hitm);
2170         fprintf(out, "  Locked Access on shared lines     : %10d\n", stats->locks);
2171         fprintf(out, "  Blocked Access on shared lines    : %10d\n", stats->blk_data + stats->blk_addr);
2172         fprintf(out, "  Store HITs on shared lines        : %10d\n", stats->store);
2173         fprintf(out, "  Store L1D hits on shared lines    : %10d\n", stats->st_l1hit);
2174         fprintf(out, "  Total Merged records              : %10d\n", hitm_cnt + stats->store);
2175 }
2176
2177 static void print_cacheline(struct c2c_hists *c2c_hists,
2178                             struct hist_entry *he_cl,
2179                             struct perf_hpp_list *hpp_list,
2180                             FILE *out)
2181 {
2182         char bf[1000];
2183         struct perf_hpp hpp = {
2184                 .buf            = bf,
2185                 .size           = 1000,
2186         };
2187         static bool once;
2188
2189         if (!once) {
2190                 hists__fprintf_headers(&c2c_hists->hists, out);
2191                 once = true;
2192         } else {
2193                 fprintf(out, "\n");
2194         }
2195
2196         fprintf(out, "  -------------------------------------------------------------\n");
2197         __hist_entry__snprintf(he_cl, &hpp, hpp_list);
2198         fprintf(out, "%s\n", bf);
2199         fprintf(out, "  -------------------------------------------------------------\n");
2200
2201         hists__fprintf(&c2c_hists->hists, false, 0, 0, 0, out, false);
2202 }
2203
2204 static void print_pareto(FILE *out)
2205 {
2206         struct perf_hpp_list hpp_list;
2207         struct rb_node *nd;
2208         int ret;
2209         const char *cl_output;
2210
2211         cl_output = "cl_num,"
2212                     "cl_rmt_hitm,"
2213                     "cl_lcl_hitm,"
2214                     "cl_stores_l1hit,"
2215                     "cl_stores_l1miss,"
2216                     "dcacheline";
2217
2218         perf_hpp_list__init(&hpp_list);
2219         ret = hpp_list__parse(&hpp_list, cl_output, NULL);
2220
2221         if (WARN_ONCE(ret, "failed to setup sort entries\n"))
2222                 return;
2223
2224         nd = rb_first_cached(&c2c.hists.hists.entries);
2225
2226         for (; nd; nd = rb_next(nd)) {
2227                 struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
2228                 struct c2c_hist_entry *c2c_he;
2229
2230                 if (he->filtered)
2231                         continue;
2232
2233                 c2c_he = container_of(he, struct c2c_hist_entry, he);
2234                 print_cacheline(c2c_he->hists, he, &hpp_list, out);
2235         }
2236 }
2237
2238 static void print_c2c_info(FILE *out, struct perf_session *session)
2239 {
2240         struct evlist *evlist = session->evlist;
2241         struct evsel *evsel;
2242         bool first = true;
2243
2244         fprintf(out, "=================================================\n");
2245         fprintf(out, "                 c2c details                     \n");
2246         fprintf(out, "=================================================\n");
2247
2248         evlist__for_each_entry(evlist, evsel) {
2249                 fprintf(out, "%-36s: %s\n", first ? "  Events" : "", evsel__name(evsel));
2250                 first = false;
2251         }
2252         fprintf(out, "  Cachelines sort on                : %s HITMs\n",
2253                 display_str[c2c.display]);
2254         fprintf(out, "  Cacheline data grouping           : %s\n", c2c.cl_sort);
2255 }
2256
2257 static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session)
2258 {
2259         setup_pager();
2260
2261         print_c2c__display_stats(out);
2262         fprintf(out, "\n");
2263         print_shared_cacheline_info(out);
2264         fprintf(out, "\n");
2265         print_c2c_info(out, session);
2266
2267         if (c2c.stats_only)
2268                 return;
2269
2270         fprintf(out, "\n");
2271         fprintf(out, "=================================================\n");
2272         fprintf(out, "           Shared Data Cache Line Table          \n");
2273         fprintf(out, "=================================================\n");
2274         fprintf(out, "#\n");
2275
2276         hists__fprintf(&c2c.hists.hists, true, 0, 0, 0, stdout, true);
2277
2278         fprintf(out, "\n");
2279         fprintf(out, "=================================================\n");
2280         fprintf(out, "      Shared Cache Line Distribution Pareto      \n");
2281         fprintf(out, "=================================================\n");
2282         fprintf(out, "#\n");
2283
2284         print_pareto(out);
2285 }
2286
2287 #ifdef HAVE_SLANG_SUPPORT
2288 static void c2c_browser__update_nr_entries(struct hist_browser *hb)
2289 {
2290         u64 nr_entries = 0;
2291         struct rb_node *nd = rb_first_cached(&hb->hists->entries);
2292
2293         while (nd) {
2294                 struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
2295
2296                 if (!he->filtered)
2297                         nr_entries++;
2298
2299                 nd = rb_next(nd);
2300         }
2301
2302         hb->nr_non_filtered_entries = nr_entries;
2303 }
2304
2305 struct c2c_cacheline_browser {
2306         struct hist_browser      hb;
2307         struct hist_entry       *he;
2308 };
2309
2310 static int
2311 perf_c2c_cacheline_browser__title(struct hist_browser *browser,
2312                                   char *bf, size_t size)
2313 {
2314         struct c2c_cacheline_browser *cl_browser;
2315         struct hist_entry *he;
2316         uint64_t addr = 0;
2317
2318         cl_browser = container_of(browser, struct c2c_cacheline_browser, hb);
2319         he = cl_browser->he;
2320
2321         if (he->mem_info)
2322                 addr = cl_address(he->mem_info->daddr.addr);
2323
2324         scnprintf(bf, size, "Cacheline 0x%lx", addr);
2325         return 0;
2326 }
2327
2328 static struct c2c_cacheline_browser*
2329 c2c_cacheline_browser__new(struct hists *hists, struct hist_entry *he)
2330 {
2331         struct c2c_cacheline_browser *browser;
2332
2333         browser = zalloc(sizeof(*browser));
2334         if (browser) {
2335                 hist_browser__init(&browser->hb, hists);
2336                 browser->hb.c2c_filter  = true;
2337                 browser->hb.title       = perf_c2c_cacheline_browser__title;
2338                 browser->he             = he;
2339         }
2340
2341         return browser;
2342 }
2343
2344 static int perf_c2c__browse_cacheline(struct hist_entry *he)
2345 {
2346         struct c2c_hist_entry *c2c_he;
2347         struct c2c_hists *c2c_hists;
2348         struct c2c_cacheline_browser *cl_browser;
2349         struct hist_browser *browser;
2350         int key = -1;
2351         static const char help[] =
2352         " ENTER         Toggle callchains (if present) \n"
2353         " n             Toggle Node details info \n"
2354         " s             Toggle full length of symbol and source line columns \n"
2355         " q             Return back to cacheline list \n";
2356
2357         if (!he)
2358                 return 0;
2359
2360         /* Display compact version first. */
2361         c2c.symbol_full = false;
2362
2363         c2c_he = container_of(he, struct c2c_hist_entry, he);
2364         c2c_hists = c2c_he->hists;
2365
2366         cl_browser = c2c_cacheline_browser__new(&c2c_hists->hists, he);
2367         if (cl_browser == NULL)
2368                 return -1;
2369
2370         browser = &cl_browser->hb;
2371
2372         /* reset abort key so that it can get Ctrl-C as a key */
2373         SLang_reset_tty();
2374         SLang_init_tty(0, 0, 0);
2375
2376         c2c_browser__update_nr_entries(browser);
2377
2378         while (1) {
2379                 key = hist_browser__run(browser, "? - help", true, 0);
2380
2381                 switch (key) {
2382                 case 's':
2383                         c2c.symbol_full = !c2c.symbol_full;
2384                         break;
2385                 case 'n':
2386                         c2c.node_info = (c2c.node_info + 1) % 3;
2387                         setup_nodes_header();
2388                         break;
2389                 case 'q':
2390                         goto out;
2391                 case '?':
2392                         ui_browser__help_window(&browser->b, help);
2393                         break;
2394                 default:
2395                         break;
2396                 }
2397         }
2398
2399 out:
2400         free(cl_browser);
2401         return 0;
2402 }
2403
2404 static int perf_c2c_browser__title(struct hist_browser *browser,
2405                                    char *bf, size_t size)
2406 {
2407         scnprintf(bf, size,
2408                   "Shared Data Cache Line Table     "
2409                   "(%lu entries, sorted on %s HITMs)",
2410                   browser->nr_non_filtered_entries,
2411                   display_str[c2c.display]);
2412         return 0;
2413 }
2414
2415 static struct hist_browser*
2416 perf_c2c_browser__new(struct hists *hists)
2417 {
2418         struct hist_browser *browser = hist_browser__new(hists);
2419
2420         if (browser) {
2421                 browser->title = perf_c2c_browser__title;
2422                 browser->c2c_filter = true;
2423         }
2424
2425         return browser;
2426 }
2427
2428 static int perf_c2c__hists_browse(struct hists *hists)
2429 {
2430         struct hist_browser *browser;
2431         int key = -1;
2432         static const char help[] =
2433         " d             Display cacheline details \n"
2434         " ENTER         Toggle callchains (if present) \n"
2435         " q             Quit \n";
2436
2437         browser = perf_c2c_browser__new(hists);
2438         if (browser == NULL)
2439                 return -1;
2440
2441         /* reset abort key so that it can get Ctrl-C as a key */
2442         SLang_reset_tty();
2443         SLang_init_tty(0, 0, 0);
2444
2445         c2c_browser__update_nr_entries(browser);
2446
2447         while (1) {
2448                 key = hist_browser__run(browser, "? - help", true, 0);
2449
2450                 switch (key) {
2451                 case 'q':
2452                         goto out;
2453                 case 'd':
2454                         perf_c2c__browse_cacheline(browser->he_selection);
2455                         break;
2456                 case '?':
2457                         ui_browser__help_window(&browser->b, help);
2458                         break;
2459                 default:
2460                         break;
2461                 }
2462         }
2463
2464 out:
2465         hist_browser__delete(browser);
2466         return 0;
2467 }
2468
2469 static void perf_c2c_display(struct perf_session *session)
2470 {
2471         if (use_browser == 0)
2472                 perf_c2c__hists_fprintf(stdout, session);
2473         else
2474                 perf_c2c__hists_browse(&c2c.hists.hists);
2475 }
2476 #else
2477 static void perf_c2c_display(struct perf_session *session)
2478 {
2479         use_browser = 0;
2480         perf_c2c__hists_fprintf(stdout, session);
2481 }
2482 #endif /* HAVE_SLANG_SUPPORT */
2483
2484 static char *fill_line(const char *orig, int len)
2485 {
2486         int i, j, olen = strlen(orig);
2487         char *buf;
2488
2489         buf = zalloc(len + 1);
2490         if (!buf)
2491                 return NULL;
2492
2493         j = len / 2 - olen / 2;
2494
2495         for (i = 0; i < j - 1; i++)
2496                 buf[i] = '-';
2497
2498         buf[i++] = ' ';
2499
2500         strcpy(buf + i, orig);
2501
2502         i += olen;
2503
2504         buf[i++] = ' ';
2505
2506         for (; i < len; i++)
2507                 buf[i] = '-';
2508
2509         return buf;
2510 }
2511
2512 static int ui_quirks(void)
2513 {
2514         const char *nodestr = "Data address";
2515         char *buf;
2516
2517         if (!c2c.use_stdio) {
2518                 dim_offset.width  = 5;
2519                 dim_offset.header = header_offset_tui;
2520                 nodestr = "CL";
2521         }
2522
2523         dim_percent_hitm.header = percent_hitm_header[c2c.display];
2524
2525         /* Fix the zero line for dcacheline column. */
2526         buf = fill_line("Cacheline", dim_dcacheline.width +
2527                                      dim_dcacheline_node.width +
2528                                      dim_dcacheline_count.width + 4);
2529         if (!buf)
2530                 return -ENOMEM;
2531
2532         dim_dcacheline.header.line[0].text = buf;
2533
2534         /* Fix the zero line for offset column. */
2535         buf = fill_line(nodestr, dim_offset.width +
2536                                  dim_offset_node.width +
2537                                  dim_dcacheline_count.width + 4);
2538         if (!buf)
2539                 return -ENOMEM;
2540
2541         dim_offset.header.line[0].text = buf;
2542
2543         return 0;
2544 }
2545
2546 #define CALLCHAIN_DEFAULT_OPT  "graph,0.5,caller,function,percent"
2547
2548 const char callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
2549                                 CALLCHAIN_REPORT_HELP
2550                                 "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
2551
2552 static int
2553 parse_callchain_opt(const struct option *opt, const char *arg, int unset)
2554 {
2555         struct callchain_param *callchain = opt->value;
2556
2557         callchain->enabled = !unset;
2558         /*
2559          * --no-call-graph
2560          */
2561         if (unset) {
2562                 symbol_conf.use_callchain = false;
2563                 callchain->mode = CHAIN_NONE;
2564                 return 0;
2565         }
2566
2567         return parse_callchain_report_opt(arg);
2568 }
2569
2570 static int setup_callchain(struct evlist *evlist)
2571 {
2572         u64 sample_type = evlist__combined_sample_type(evlist);
2573         enum perf_call_graph_mode mode = CALLCHAIN_NONE;
2574
2575         if ((sample_type & PERF_SAMPLE_REGS_USER) &&
2576             (sample_type & PERF_SAMPLE_STACK_USER)) {
2577                 mode = CALLCHAIN_DWARF;
2578                 dwarf_callchain_users = true;
2579         } else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
2580                 mode = CALLCHAIN_LBR;
2581         else if (sample_type & PERF_SAMPLE_CALLCHAIN)
2582                 mode = CALLCHAIN_FP;
2583
2584         if (!callchain_param.enabled &&
2585             callchain_param.mode != CHAIN_NONE &&
2586             mode != CALLCHAIN_NONE) {
2587                 symbol_conf.use_callchain = true;
2588                 if (callchain_register_param(&callchain_param) < 0) {
2589                         ui__error("Can't register callchain params.\n");
2590                         return -EINVAL;
2591                 }
2592         }
2593
2594         if (c2c.stitch_lbr && (mode != CALLCHAIN_LBR)) {
2595                 ui__warning("Can't find LBR callchain. Switch off --stitch-lbr.\n"
2596                             "Please apply --call-graph lbr when recording.\n");
2597                 c2c.stitch_lbr = false;
2598         }
2599
2600         callchain_param.record_mode = mode;
2601         callchain_param.min_percent = 0;
2602         return 0;
2603 }
2604
2605 static int setup_display(const char *str)
2606 {
2607         const char *display = str ?: "tot";
2608
2609         if (!strcmp(display, "tot"))
2610                 c2c.display = DISPLAY_TOT;
2611         else if (!strcmp(display, "rmt"))
2612                 c2c.display = DISPLAY_RMT;
2613         else if (!strcmp(display, "lcl"))
2614                 c2c.display = DISPLAY_LCL;
2615         else {
2616                 pr_err("failed: unknown display type: %s\n", str);
2617                 return -1;
2618         }
2619
2620         return 0;
2621 }
2622
2623 #define for_each_token(__tok, __buf, __sep, __tmp)              \
2624         for (__tok = strtok_r(__buf, __sep, &__tmp); __tok;     \
2625              __tok = strtok_r(NULL,  __sep, &__tmp))
2626
2627 static int build_cl_output(char *cl_sort, bool no_source)
2628 {
2629         char *tok, *tmp, *buf = strdup(cl_sort);
2630         bool add_pid   = false;
2631         bool add_tid   = false;
2632         bool add_iaddr = false;
2633         bool add_sym   = false;
2634         bool add_dso   = false;
2635         bool add_src   = false;
2636         int ret = 0;
2637
2638         if (!buf)
2639                 return -ENOMEM;
2640
2641         for_each_token(tok, buf, ",", tmp) {
2642                 if (!strcmp(tok, "tid")) {
2643                         add_tid = true;
2644                 } else if (!strcmp(tok, "pid")) {
2645                         add_pid = true;
2646                 } else if (!strcmp(tok, "iaddr")) {
2647                         add_iaddr = true;
2648                         add_sym   = true;
2649                         add_dso   = true;
2650                         add_src   = no_source ? false : true;
2651                 } else if (!strcmp(tok, "dso")) {
2652                         add_dso = true;
2653                 } else if (strcmp(tok, "offset")) {
2654                         pr_err("unrecognized sort token: %s\n", tok);
2655                         ret = -EINVAL;
2656                         goto err;
2657                 }
2658         }
2659
2660         if (asprintf(&c2c.cl_output,
2661                 "%s%s%s%s%s%s%s%s%s%s",
2662                 c2c.use_stdio ? "cl_num_empty," : "",
2663                 "percent_rmt_hitm,"
2664                 "percent_lcl_hitm,"
2665                 "percent_stores_l1hit,"
2666                 "percent_stores_l1miss,"
2667                 "offset,offset_node,dcacheline_count,",
2668                 add_pid   ? "pid," : "",
2669                 add_tid   ? "tid," : "",
2670                 add_iaddr ? "iaddr," : "",
2671                 "mean_rmt,"
2672                 "mean_lcl,"
2673                 "mean_load,"
2674                 "tot_recs,"
2675                 "cpucnt,",
2676                 add_sym ? "symbol," : "",
2677                 add_dso ? "dso," : "",
2678                 add_src ? "cl_srcline," : "",
2679                 "node") < 0) {
2680                 ret = -ENOMEM;
2681                 goto err;
2682         }
2683
2684         c2c.show_src = add_src;
2685 err:
2686         free(buf);
2687         return ret;
2688 }
2689
2690 static int setup_coalesce(const char *coalesce, bool no_source)
2691 {
2692         const char *c = coalesce ?: coalesce_default;
2693
2694         if (asprintf(&c2c.cl_sort, "offset,%s", c) < 0)
2695                 return -ENOMEM;
2696
2697         if (build_cl_output(c2c.cl_sort, no_source))
2698                 return -1;
2699
2700         if (asprintf(&c2c.cl_resort, "offset,%s",
2701                      c2c.display == DISPLAY_TOT ?
2702                      "tot_hitm" :
2703                      c2c.display == DISPLAY_RMT ?
2704                      "rmt_hitm,lcl_hitm" :
2705                      "lcl_hitm,rmt_hitm") < 0)
2706                 return -ENOMEM;
2707
2708         pr_debug("coalesce sort   fields: %s\n", c2c.cl_sort);
2709         pr_debug("coalesce resort fields: %s\n", c2c.cl_resort);
2710         pr_debug("coalesce output fields: %s\n", c2c.cl_output);
2711         return 0;
2712 }
2713
2714 static int perf_c2c__report(int argc, const char **argv)
2715 {
2716         struct itrace_synth_opts itrace_synth_opts = {
2717                 .set = true,
2718                 .mem = true,    /* Only enable memory event */
2719                 .default_no_sample = true,
2720         };
2721
2722         struct perf_session *session;
2723         struct ui_progress prog;
2724         struct perf_data data = {
2725                 .mode = PERF_DATA_MODE_READ,
2726         };
2727         char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
2728         const char *display = NULL;
2729         const char *coalesce = NULL;
2730         bool no_source = false;
2731         const struct option options[] = {
2732         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
2733                    "file", "vmlinux pathname"),
2734         OPT_STRING('i', "input", &input_name, "file",
2735                    "the input file to process"),
2736         OPT_INCR('N', "node-info", &c2c.node_info,
2737                  "show extra node info in report (repeat for more info)"),
2738 #ifdef HAVE_SLANG_SUPPORT
2739         OPT_BOOLEAN(0, "stdio", &c2c.use_stdio, "Use the stdio interface"),
2740 #endif
2741         OPT_BOOLEAN(0, "stats", &c2c.stats_only,
2742                     "Display only statistic tables (implies --stdio)"),
2743         OPT_BOOLEAN(0, "full-symbols", &c2c.symbol_full,
2744                     "Display full length of symbols"),
2745         OPT_BOOLEAN(0, "no-source", &no_source,
2746                     "Do not display Source Line column"),
2747         OPT_BOOLEAN(0, "show-all", &c2c.show_all,
2748                     "Show all captured HITM lines."),
2749         OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
2750                              "print_type,threshold[,print_limit],order,sort_key[,branch],value",
2751                              callchain_help, &parse_callchain_opt,
2752                              callchain_default_opt),
2753         OPT_STRING('d', "display", &display, "Switch HITM output type", "lcl,rmt"),
2754         OPT_STRING('c', "coalesce", &coalesce, "coalesce fields",
2755                    "coalesce fields: pid,tid,iaddr,dso"),
2756         OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
2757         OPT_BOOLEAN(0, "stitch-lbr", &c2c.stitch_lbr,
2758                     "Enable LBR callgraph stitching approach"),
2759         OPT_PARENT(c2c_options),
2760         OPT_END()
2761         };
2762         int err = 0;
2763         const char *output_str, *sort_str = NULL;
2764
2765         argc = parse_options(argc, argv, options, report_c2c_usage,
2766                              PARSE_OPT_STOP_AT_NON_OPTION);
2767         if (argc)
2768                 usage_with_options(report_c2c_usage, options);
2769
2770         if (c2c.stats_only)
2771                 c2c.use_stdio = true;
2772
2773         err = symbol__validate_sym_arguments();
2774         if (err)
2775                 goto out;
2776
2777         if (!input_name || !strlen(input_name))
2778                 input_name = "perf.data";
2779
2780         data.path  = input_name;
2781         data.force = symbol_conf.force;
2782
2783         err = setup_display(display);
2784         if (err)
2785                 goto out;
2786
2787         err = setup_coalesce(coalesce, no_source);
2788         if (err) {
2789                 pr_debug("Failed to initialize hists\n");
2790                 goto out;
2791         }
2792
2793         err = c2c_hists__init(&c2c.hists, "dcacheline", 2);
2794         if (err) {
2795                 pr_debug("Failed to initialize hists\n");
2796                 goto out;
2797         }
2798
2799         session = perf_session__new(&data, &c2c.tool);
2800         if (IS_ERR(session)) {
2801                 err = PTR_ERR(session);
2802                 pr_debug("Error creating perf session\n");
2803                 goto out;
2804         }
2805
2806         session->itrace_synth_opts = &itrace_synth_opts;
2807
2808         err = setup_nodes(session);
2809         if (err) {
2810                 pr_err("Failed setup nodes\n");
2811                 goto out;
2812         }
2813
2814         err = mem2node__init(&c2c.mem2node, &session->header.env);
2815         if (err)
2816                 goto out_session;
2817
2818         err = setup_callchain(session->evlist);
2819         if (err)
2820                 goto out_mem2node;
2821
2822         if (symbol__init(&session->header.env) < 0)
2823                 goto out_mem2node;
2824
2825         /* No pipe support at the moment. */
2826         if (perf_data__is_pipe(session->data)) {
2827                 pr_debug("No pipe support at the moment.\n");
2828                 goto out_mem2node;
2829         }
2830
2831         if (c2c.use_stdio)
2832                 use_browser = 0;
2833         else
2834                 use_browser = 1;
2835
2836         setup_browser(false);
2837
2838         err = perf_session__process_events(session);
2839         if (err) {
2840                 pr_err("failed to process sample\n");
2841                 goto out_mem2node;
2842         }
2843
2844         output_str = "cl_idx,"
2845                      "dcacheline,"
2846                      "dcacheline_node,"
2847                      "dcacheline_count,"
2848                      "percent_hitm,"
2849                      "tot_hitm,lcl_hitm,rmt_hitm,"
2850                      "tot_recs,"
2851                      "tot_loads,"
2852                      "tot_stores,"
2853                      "stores_l1hit,stores_l1miss,"
2854                      "ld_fbhit,ld_l1hit,ld_l2hit,"
2855                      "ld_lclhit,lcl_hitm,"
2856                      "ld_rmthit,rmt_hitm,"
2857                      "dram_lcl,dram_rmt";
2858
2859         if (c2c.display == DISPLAY_TOT)
2860                 sort_str = "tot_hitm";
2861         else if (c2c.display == DISPLAY_RMT)
2862                 sort_str = "rmt_hitm";
2863         else if (c2c.display == DISPLAY_LCL)
2864                 sort_str = "lcl_hitm";
2865
2866         c2c_hists__reinit(&c2c.hists, output_str, sort_str);
2867
2868         ui_progress__init(&prog, c2c.hists.hists.nr_entries, "Sorting...");
2869
2870         hists__collapse_resort(&c2c.hists.hists, NULL);
2871         hists__output_resort_cb(&c2c.hists.hists, &prog, resort_shared_cl_cb);
2872         hists__iterate_cb(&c2c.hists.hists, resort_cl_cb);
2873
2874         ui_progress__finish();
2875
2876         if (ui_quirks()) {
2877                 pr_err("failed to setup UI\n");
2878                 goto out_mem2node;
2879         }
2880
2881         perf_c2c_display(session);
2882
2883 out_mem2node:
2884         mem2node__exit(&c2c.mem2node);
2885 out_session:
2886         perf_session__delete(session);
2887 out:
2888         return err;
2889 }
2890
2891 static int parse_record_events(const struct option *opt,
2892                                const char *str, int unset __maybe_unused)
2893 {
2894         bool *event_set = (bool *) opt->value;
2895
2896         if (!strcmp(str, "list")) {
2897                 perf_mem_events__list();
2898                 exit(0);
2899         }
2900         if (perf_mem_events__parse(str))
2901                 exit(-1);
2902
2903         *event_set = true;
2904         return 0;
2905 }
2906
2907
2908 static const char * const __usage_record[] = {
2909         "perf c2c record [<options>] [<command>]",
2910         "perf c2c record [<options>] -- <command> [<options>]",
2911         NULL
2912 };
2913
2914 static const char * const *record_mem_usage = __usage_record;
2915
2916 static int perf_c2c__record(int argc, const char **argv)
2917 {
2918         int rec_argc, i = 0, j, rec_tmp_nr = 0;
2919         const char **rec_argv;
2920         char **rec_tmp;
2921         int ret;
2922         bool all_user = false, all_kernel = false;
2923         bool event_set = false;
2924         struct perf_mem_event *e;
2925         struct option options[] = {
2926         OPT_CALLBACK('e', "event", &event_set, "event",
2927                      "event selector. Use 'perf c2c record -e list' to list available events",
2928                      parse_record_events),
2929         OPT_BOOLEAN('u', "all-user", &all_user, "collect only user level data"),
2930         OPT_BOOLEAN('k', "all-kernel", &all_kernel, "collect only kernel level data"),
2931         OPT_UINTEGER('l', "ldlat", &perf_mem_events__loads_ldlat, "setup mem-loads latency"),
2932         OPT_PARENT(c2c_options),
2933         OPT_END()
2934         };
2935
2936         if (perf_mem_events__init()) {
2937                 pr_err("failed: memory events not supported\n");
2938                 return -1;
2939         }
2940
2941         argc = parse_options(argc, argv, options, record_mem_usage,
2942                              PARSE_OPT_KEEP_UNKNOWN);
2943
2944         if (!perf_pmu__has_hybrid())
2945                 rec_argc = argc + 11; /* max number of arguments */
2946         else
2947                 rec_argc = argc + 11 * perf_pmu__hybrid_pmu_num();
2948
2949         rec_argv = calloc(rec_argc + 1, sizeof(char *));
2950         if (!rec_argv)
2951                 return -1;
2952
2953         rec_tmp = calloc(rec_argc + 1, sizeof(char *));
2954         if (!rec_tmp) {
2955                 free(rec_argv);
2956                 return -1;
2957         }
2958
2959         rec_argv[i++] = "record";
2960
2961         if (!event_set) {
2962                 e = perf_mem_events__ptr(PERF_MEM_EVENTS__LOAD_STORE);
2963                 /*
2964                  * The load and store operations are required, use the event
2965                  * PERF_MEM_EVENTS__LOAD_STORE if it is supported.
2966                  */
2967                 if (e->tag) {
2968                         e->record = true;
2969                 } else {
2970                         e = perf_mem_events__ptr(PERF_MEM_EVENTS__LOAD);
2971                         e->record = true;
2972
2973                         e = perf_mem_events__ptr(PERF_MEM_EVENTS__STORE);
2974                         e->record = true;
2975                 }
2976         }
2977
2978         e = perf_mem_events__ptr(PERF_MEM_EVENTS__LOAD);
2979         if (e->record)
2980                 rec_argv[i++] = "-W";
2981
2982         rec_argv[i++] = "-d";
2983         rec_argv[i++] = "--phys-data";
2984         rec_argv[i++] = "--sample-cpu";
2985
2986         ret = perf_mem_events__record_args(rec_argv, &i, rec_tmp, &rec_tmp_nr);
2987         if (ret)
2988                 goto out;
2989
2990         if (all_user)
2991                 rec_argv[i++] = "--all-user";
2992
2993         if (all_kernel)
2994                 rec_argv[i++] = "--all-kernel";
2995
2996         for (j = 0; j < argc; j++, i++)
2997                 rec_argv[i] = argv[j];
2998
2999         if (verbose > 0) {
3000                 pr_debug("calling: ");
3001
3002                 j = 0;
3003
3004                 while (rec_argv[j]) {
3005                         pr_debug("%s ", rec_argv[j]);
3006                         j++;
3007                 }
3008                 pr_debug("\n");
3009         }
3010
3011         ret = cmd_record(i, rec_argv);
3012 out:
3013         for (i = 0; i < rec_tmp_nr; i++)
3014                 free(rec_tmp[i]);
3015
3016         free(rec_tmp);
3017         free(rec_argv);
3018         return ret;
3019 }
3020
3021 int cmd_c2c(int argc, const char **argv)
3022 {
3023         argc = parse_options(argc, argv, c2c_options, c2c_usage,
3024                              PARSE_OPT_STOP_AT_NON_OPTION);
3025
3026         if (!argc)
3027                 usage_with_options(c2c_usage, c2c_options);
3028
3029         if (strlen(argv[0]) > 2 && strstarts("record", argv[0])) {
3030                 return perf_c2c__record(argc, argv);
3031         } else if (strlen(argv[0]) > 2 && strstarts("report", argv[0])) {
3032                 return perf_c2c__report(argc, argv);
3033         } else {
3034                 usage_with_options(c2c_usage, c2c_options);
3035         }
3036
3037         return 0;
3038 }