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 "pmus.h"
  45 #include "string2.h"
  46 #include "util/util.h"
  47
  48 struct c2c_hists {
  49         struct hists            hists;
  50         struct perf_hpp_list    list;
  51         struct c2c_stats        stats;
  52 };
  53
  54 struct compute_stats {
  55         struct stats             lcl_hitm;
  56         struct stats             rmt_hitm;
  57         struct stats             lcl_peer;
  58         struct stats             rmt_peer;
  59         struct stats             load;
  60 };
  61
  62 struct c2c_hist_entry {
  63         struct c2c_hists        *hists;
  64         struct c2c_stats         stats;
  65         unsigned long           *cpuset;
  66         unsigned long           *nodeset;
  67         struct c2c_stats        *node_stats;
  68         unsigned int             cacheline_idx;
  69
  70         struct compute_stats     cstats;
  71
  72         unsigned long            paddr;
  73         unsigned long            paddr_cnt;
  74         bool                     paddr_zero;
  75         char                    *nodestr;
  76
  77         /*
  78          * must be at the end,
  79          * because of its callchain dynamic entry
  80          */
  81         struct hist_entry       he;
  82 };
  83
  84 static char const *coalesce_default = "iaddr";
  85
  86 struct perf_c2c {
  87         struct perf_tool        tool;
  88         struct c2c_hists        hists;
  89         struct mem2node         mem2node;
  90
  91         unsigned long           **nodes;
  92         int                      nodes_cnt;
  93         int                      cpus_cnt;
  94         int                     *cpu2node;
  95         int                      node_info;
  96
  97         bool                     show_src;
  98         bool                     show_all;
  99         bool                     use_stdio;
 100         bool                     stats_only;
 101         bool                     symbol_full;
 102         bool                     stitch_lbr;
 103
 104         /* Shared cache line stats */
 105         struct c2c_stats        shared_clines_stats;
 106         int                     shared_clines;
 107
 108         int                      display;
 109
 110         const char              *coalesce;
 111         char                    *cl_sort;
 112         char                    *cl_resort;
 113         char                    *cl_output;
 114 };
 115
 116 enum {
 117         DISPLAY_LCL_HITM,
 118         DISPLAY_RMT_HITM,
 119         DISPLAY_TOT_HITM,
 120         DISPLAY_SNP_PEER,
 121         DISPLAY_MAX,
 122 };
 123
 124 static const char *display_str[DISPLAY_MAX] = {
 125         [DISPLAY_LCL_HITM] = "Local HITMs",
 126         [DISPLAY_RMT_HITM] = "Remote HITMs",
 127         [DISPLAY_TOT_HITM] = "Total HITMs",
 128         [DISPLAY_SNP_PEER] = "Peer Snoop",
 129 };
 130
 131 static const struct option c2c_options[] = {
 132         OPT_INCR('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"),
 133         OPT_END()
 134 };
 135
 136 static struct perf_c2c c2c;
 137
 138 static void *c2c_he_zalloc(size_t size)
 139 {
 140         struct c2c_hist_entry *c2c_he;
 141
 142         c2c_he = zalloc(size + sizeof(*c2c_he));
 143         if (!c2c_he)
 144                 return NULL;
 145
 146         c2c_he->cpuset = bitmap_zalloc(c2c.cpus_cnt);
 147         if (!c2c_he->cpuset)
 148                 goto out_free;
 149
 150         c2c_he->nodeset = bitmap_zalloc(c2c.nodes_cnt);
 151         if (!c2c_he->nodeset)
 152                 goto out_free;
 153
 154         c2c_he->node_stats = zalloc(c2c.nodes_cnt * sizeof(*c2c_he->node_stats));
 155         if (!c2c_he->node_stats)
 156                 goto out_free;
 157
 158         init_stats(&c2c_he->cstats.lcl_hitm);
 159         init_stats(&c2c_he->cstats.rmt_hitm);
 160         init_stats(&c2c_he->cstats.lcl_peer);
 161         init_stats(&c2c_he->cstats.rmt_peer);
 162         init_stats(&c2c_he->cstats.load);
 163
 164         return &c2c_he->he;
 165
 166 out_free:
 167         zfree(&c2c_he->nodeset);
 168         zfree(&c2c_he->cpuset);
 169         free(c2c_he);
 170         return NULL;
 171 }
 172
 173 static void c2c_he_free(void *he)
 174 {
 175         struct c2c_hist_entry *c2c_he;
 176
 177         c2c_he = container_of(he, struct c2c_hist_entry, he);
 178         if (c2c_he->hists) {
 179                 hists__delete_entries(&c2c_he->hists->hists);
 180                 zfree(&c2c_he->hists);
 181         }
 182
 183         zfree(&c2c_he->cpuset);
 184         zfree(&c2c_he->nodeset);
 185         zfree(&c2c_he->nodestr);
 186         zfree(&c2c_he->node_stats);
 187         free(c2c_he);
 188 }
 189
 190 static struct hist_entry_ops c2c_entry_ops = {
 191         .new    = c2c_he_zalloc,
 192         .free   = c2c_he_free,
 193 };
 194
 195 static int c2c_hists__init(struct c2c_hists *hists,
 196                            const char *sort,
 197                            int nr_header_lines);
 198
 199 static struct c2c_hists*
 200 he__get_c2c_hists(struct hist_entry *he,
 201                   const char *sort,
 202                   int nr_header_lines)
 203 {
 204         struct c2c_hist_entry *c2c_he;
 205         struct c2c_hists *hists;
 206         int ret;
 207
 208         c2c_he = container_of(he, struct c2c_hist_entry, he);
 209         if (c2c_he->hists)
 210                 return c2c_he->hists;
 211
 212         hists = c2c_he->hists = zalloc(sizeof(*hists));
 213         if (!hists)
 214                 return NULL;
 215
 216         ret = c2c_hists__init(hists, sort, nr_header_lines);
 217         if (ret) {
 218                 free(hists);
 219                 return NULL;
 220         }
 221
 222         return hists;
 223 }
 224
 225 static void c2c_he__set_cpu(struct c2c_hist_entry *c2c_he,
 226                             struct perf_sample *sample)
 227 {
 228         if (WARN_ONCE(sample->cpu == (unsigned int) -1,
 229                       "WARNING: no sample cpu value"))
 230                 return;
 231
 232         __set_bit(sample->cpu, c2c_he->cpuset);
 233 }
 234
 235 static void c2c_he__set_node(struct c2c_hist_entry *c2c_he,
 236                              struct perf_sample *sample)
 237 {
 238         int node;
 239
 240         if (!sample->phys_addr) {
 241                 c2c_he->paddr_zero = true;
 242                 return;
 243         }
 244
 245         node = mem2node__node(&c2c.mem2node, sample->phys_addr);
 246         if (WARN_ONCE(node < 0, "WARNING: failed to find node\n"))
 247                 return;
 248
 249         __set_bit(node, c2c_he->nodeset);
 250
 251         if (c2c_he->paddr != sample->phys_addr) {
 252                 c2c_he->paddr_cnt++;
 253                 c2c_he->paddr = sample->phys_addr;
 254         }
 255 }
 256
 257 static void compute_stats(struct c2c_hist_entry *c2c_he,
 258                           struct c2c_stats *stats,
 259                           u64 weight)
 260 {
 261         struct compute_stats *cstats = &c2c_he->cstats;
 262
 263         if (stats->rmt_hitm)
 264                 update_stats(&cstats->rmt_hitm, weight);
 265         else if (stats->lcl_hitm)
 266                 update_stats(&cstats->lcl_hitm, weight);
 267         else if (stats->rmt_peer)
 268                 update_stats(&cstats->rmt_peer, weight);
 269         else if (stats->lcl_peer)
 270                 update_stats(&cstats->lcl_peer, weight);
 271         else if (stats->load)
 272                 update_stats(&cstats->load, weight);
 273 }
 274
 275 static int process_sample_event(struct perf_tool *tool __maybe_unused,
 276                                 union perf_event *event,
 277                                 struct perf_sample *sample,
 278                                 struct evsel *evsel,
 279                                 struct machine *machine)
 280 {
 281         struct c2c_hists *c2c_hists = &c2c.hists;
 282         struct c2c_hist_entry *c2c_he;
 283         struct c2c_stats stats = { .nr_entries = 0, };
 284         struct hist_entry *he;
 285         struct addr_location al;
 286         struct mem_info *mi, *mi_dup;
 287         struct callchain_cursor *cursor;
 288         int ret;
 289
 290         addr_location__init(&al);
 291         if (machine__resolve(machine, &al, sample) < 0) {
 292                 pr_debug("problem processing %d event, skipping it.\n",
 293                          event->header.type);
 294                 ret = -1;
 295                 goto out;
 296         }
 297
 298         if (c2c.stitch_lbr)
 299                 thread__set_lbr_stitch_enable(al.thread, true);
 300
 301         cursor = get_tls_callchain_cursor();
 302         ret = sample__resolve_callchain(sample, cursor, NULL,
 303                                         evsel, &al, sysctl_perf_event_max_stack);
 304         if (ret)
 305                 goto out;
 306
 307         mi = sample__resolve_mem(sample, &al);
 308         if (mi == NULL) {
 309                 ret = -ENOMEM;
 310                 goto out;
 311         }
 312
 313         /*
 314          * The mi object is released in hists__add_entry_ops,
 315          * if it gets sorted out into existing data, so we need
 316          * to take the copy now.
 317          */
 318         mi_dup = mem_info__get(mi);
 319
 320         c2c_decode_stats(&stats, mi);
 321
 322         he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops,
 323                                   &al, NULL, NULL, mi, NULL,
 324                                   sample, true);
 325         if (he == NULL)
 326                 goto free_mi;
 327
 328         c2c_he = container_of(he, struct c2c_hist_entry, he);
 329         c2c_add_stats(&c2c_he->stats, &stats);
 330         c2c_add_stats(&c2c_hists->stats, &stats);
 331
 332         c2c_he__set_cpu(c2c_he, sample);
 333         c2c_he__set_node(c2c_he, sample);
 334
 335         hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
 336         ret = hist_entry__append_callchain(he, sample);
 337
 338         if (!ret) {
 339                 /*
 340                  * There's already been warning about missing
 341                  * sample's cpu value. Let's account all to
 342                  * node 0 in this case, without any further
 343                  * warning.
 344                  *
 345                  * Doing node stats only for single callchain data.
 346                  */
 347                 int cpu = sample->cpu == (unsigned int) -1 ? 0 : sample->cpu;
 348                 int node = c2c.cpu2node[cpu];
 349
 350                 mi = mi_dup;
 351
 352                 c2c_hists = he__get_c2c_hists(he, c2c.cl_sort, 2);
 353                 if (!c2c_hists)
 354                         goto free_mi;
 355
 356                 he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops,
 357                                           &al, NULL, NULL, mi, NULL,
 358                                           sample, true);
 359                 if (he == NULL)
 360                         goto free_mi;
 361
 362                 c2c_he = container_of(he, struct c2c_hist_entry, he);
 363                 c2c_add_stats(&c2c_he->stats, &stats);
 364                 c2c_add_stats(&c2c_hists->stats, &stats);
 365                 c2c_add_stats(&c2c_he->node_stats[node], &stats);
 366
 367                 compute_stats(c2c_he, &stats, sample->weight);
 368
 369                 c2c_he__set_cpu(c2c_he, sample);
 370                 c2c_he__set_node(c2c_he, sample);
 371
 372                 hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
 373                 ret = hist_entry__append_callchain(he, sample);
 374         }
 375
 376 out:
 377         addr_location__exit(&al);
 378         return ret;
 379
 380 free_mi:
 381         mem_info__put(mi_dup);
 382         mem_info__put(mi);
 383         ret = -ENOMEM;
 384         goto out;
 385 }
 386
 387 static struct perf_c2c c2c = {
 388         .tool = {
 389                 .sample         = process_sample_event,
 390                 .mmap           = perf_event__process_mmap,
 391                 .mmap2          = perf_event__process_mmap2,
 392                 .comm           = perf_event__process_comm,
 393                 .exit           = perf_event__process_exit,
 394                 .fork           = perf_event__process_fork,
 395                 .lost           = perf_event__process_lost,
 396                 .attr           = perf_event__process_attr,
 397                 .auxtrace_info  = perf_event__process_auxtrace_info,
 398                 .auxtrace       = perf_event__process_auxtrace,
 399                 .auxtrace_error = perf_event__process_auxtrace_error,
 400                 .ordered_events = true,
 401                 .ordering_requires_timestamps = true,
 402         },
 403 };
 404
 405 static const char * const c2c_usage[] = {
 406         "perf c2c {record|report}",
 407         NULL
 408 };
 409
 410 static const char * const __usage_report[] = {
 411         "perf c2c report",
 412         NULL
 413 };
 414
 415 static const char * const *report_c2c_usage = __usage_report;
 416
 417 #define C2C_HEADER_MAX 2
 418
 419 struct c2c_header {
 420         struct {
 421                 const char *text;
 422                 int         span;
 423         } line[C2C_HEADER_MAX];
 424 };
 425
 426 struct c2c_dimension {
 427         struct c2c_header        header;
 428         const char              *name;
 429         int                      width;
 430         struct sort_entry       *se;
 431
 432         int64_t (*cmp)(struct perf_hpp_fmt *fmt,
 433                        struct hist_entry *, struct hist_entry *);
 434         int   (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 435                        struct hist_entry *he);
 436         int   (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 437                        struct hist_entry *he);
 438 };
 439
 440 struct c2c_fmt {
 441         struct perf_hpp_fmt      fmt;
 442         struct c2c_dimension    *dim;
 443 };
 444
 445 #define SYMBOL_WIDTH 30
 446
 447 static struct c2c_dimension dim_symbol;
 448 static struct c2c_dimension dim_srcline;
 449
 450 static int symbol_width(struct hists *hists, struct sort_entry *se)
 451 {
 452         int width = hists__col_len(hists, se->se_width_idx);
 453
 454         if (!c2c.symbol_full)
 455                 width = MIN(width, SYMBOL_WIDTH);
 456
 457         return width;
 458 }
 459
 460 static int c2c_width(struct perf_hpp_fmt *fmt,
 461                      struct perf_hpp *hpp __maybe_unused,
 462                      struct hists *hists)
 463 {
 464         struct c2c_fmt *c2c_fmt;
 465         struct c2c_dimension *dim;
 466
 467         c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
 468         dim = c2c_fmt->dim;
 469
 470         if (dim == &dim_symbol || dim == &dim_srcline)
 471                 return symbol_width(hists, dim->se);
 472
 473         return dim->se ? hists__col_len(hists, dim->se->se_width_idx) :
 474                          c2c_fmt->dim->width;
 475 }
 476
 477 static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 478                       struct hists *hists, int line, int *span)
 479 {
 480         struct perf_hpp_list *hpp_list = hists->hpp_list;
 481         struct c2c_fmt *c2c_fmt;
 482         struct c2c_dimension *dim;
 483         const char *text = NULL;
 484         int width = c2c_width(fmt, hpp, hists);
 485
 486         c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
 487         dim = c2c_fmt->dim;
 488
 489         if (dim->se) {
 490                 text = dim->header.line[line].text;
 491                 /* Use the last line from sort_entry if not defined. */
 492                 if (!text && (line == hpp_list->nr_header_lines - 1))
 493                         text = dim->se->se_header;
 494         } else {
 495                 text = dim->header.line[line].text;
 496
 497                 if (*span) {
 498                         (*span)--;
 499                         return 0;
 500                 } else {
 501                         *span = dim->header.line[line].span;
 502                 }
 503         }
 504
 505         if (text == NULL)
 506                 text = "";
 507
 508         return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
 509 }
 510
 511 #define HEX_STR(__s, __v)                               \
 512 ({                                                      \
 513         scnprintf(__s, sizeof(__s), "0x%" PRIx64, __v); \
 514         __s;                                            \
 515 })
 516
 517 static int64_t
 518 dcacheline_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 519                struct hist_entry *left, struct hist_entry *right)
 520 {
 521         return sort__dcacheline_cmp(left, right);
 522 }
 523
 524 static int dcacheline_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 525                             struct hist_entry *he)
 526 {
 527         uint64_t addr = 0;
 528         int width = c2c_width(fmt, hpp, he->hists);
 529         char buf[20];
 530
 531         if (he->mem_info)
 532                 addr = cl_address(he->mem_info->daddr.addr, chk_double_cl);
 533
 534         return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
 535 }
 536
 537 static int
 538 dcacheline_node_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 539                       struct hist_entry *he)
 540 {
 541         struct c2c_hist_entry *c2c_he;
 542         int width = c2c_width(fmt, hpp, he->hists);
 543
 544         c2c_he = container_of(he, struct c2c_hist_entry, he);
 545         if (WARN_ON_ONCE(!c2c_he->nodestr))
 546                 return 0;
 547
 548         return scnprintf(hpp->buf, hpp->size, "%*s", width, c2c_he->nodestr);
 549 }
 550
 551 static int
 552 dcacheline_node_count(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 553                       struct hist_entry *he)
 554 {
 555         struct c2c_hist_entry *c2c_he;
 556         int width = c2c_width(fmt, hpp, he->hists);
 557
 558         c2c_he = container_of(he, struct c2c_hist_entry, he);
 559         return scnprintf(hpp->buf, hpp->size, "%*lu", width, c2c_he->paddr_cnt);
 560 }
 561
 562 static int offset_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 563                         struct hist_entry *he)
 564 {
 565         uint64_t addr = 0;
 566         int width = c2c_width(fmt, hpp, he->hists);
 567         char buf[20];
 568
 569         if (he->mem_info)
 570                 addr = cl_offset(he->mem_info->daddr.al_addr, chk_double_cl);
 571
 572         return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
 573 }
 574
 575 static int64_t
 576 offset_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 577            struct hist_entry *left, struct hist_entry *right)
 578 {
 579         uint64_t l = 0, r = 0;
 580
 581         if (left->mem_info)
 582                 l = cl_offset(left->mem_info->daddr.addr, chk_double_cl);
 583
 584         if (right->mem_info)
 585                 r = cl_offset(right->mem_info->daddr.addr, chk_double_cl);
 586
 587         return (int64_t)(r - l);
 588 }
 589
 590 static int
 591 iaddr_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 592             struct hist_entry *he)
 593 {
 594         uint64_t addr = 0;
 595         int width = c2c_width(fmt, hpp, he->hists);
 596         char buf[20];
 597
 598         if (he->mem_info)
 599                 addr = he->mem_info->iaddr.addr;
 600
 601         return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
 602 }
 603
 604 static int64_t
 605 iaddr_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 606           struct hist_entry *left, struct hist_entry *right)
 607 {
 608         return sort__iaddr_cmp(left, right);
 609 }
 610
 611 static int
 612 tot_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 613                struct hist_entry *he)
 614 {
 615         struct c2c_hist_entry *c2c_he;
 616         int width = c2c_width(fmt, hpp, he->hists);
 617         unsigned int tot_hitm;
 618
 619         c2c_he = container_of(he, struct c2c_hist_entry, he);
 620         tot_hitm = c2c_he->stats.lcl_hitm + c2c_he->stats.rmt_hitm;
 621
 622         return scnprintf(hpp->buf, hpp->size, "%*u", width, tot_hitm);
 623 }
 624
 625 static int64_t
 626 tot_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 627              struct hist_entry *left, struct hist_entry *right)
 628 {
 629         struct c2c_hist_entry *c2c_left;
 630         struct c2c_hist_entry *c2c_right;
 631         uint64_t tot_hitm_left;
 632         uint64_t tot_hitm_right;
 633
 634         c2c_left  = container_of(left, struct c2c_hist_entry, he);
 635         c2c_right = container_of(right, struct c2c_hist_entry, he);
 636
 637         tot_hitm_left  = c2c_left->stats.lcl_hitm + c2c_left->stats.rmt_hitm;
 638         tot_hitm_right = c2c_right->stats.lcl_hitm + c2c_right->stats.rmt_hitm;
 639
 640         return tot_hitm_left - tot_hitm_right;
 641 }
 642
 643 #define STAT_FN_ENTRY(__f)                                      \
 644 static int                                                      \
 645 __f ## _entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,   \
 646               struct hist_entry *he)                            \
 647 {                                                               \
 648         struct c2c_hist_entry *c2c_he;                          \
 649         int width = c2c_width(fmt, hpp, he->hists);             \
 650                                                                 \
 651         c2c_he = container_of(he, struct c2c_hist_entry, he);   \
 652         return scnprintf(hpp->buf, hpp->size, "%*u", width,     \
 653                          c2c_he->stats.__f);                    \
 654 }
 655
 656 #define STAT_FN_CMP(__f)                                                \
 657 static int64_t                                                          \
 658 __f ## _cmp(struct perf_hpp_fmt *fmt __maybe_unused,                    \
 659             struct hist_entry *left, struct hist_entry *right)          \
 660 {                                                                       \
 661         struct c2c_hist_entry *c2c_left, *c2c_right;                    \
 662                                                                         \
 663         c2c_left  = container_of(left, struct c2c_hist_entry, he);      \
 664         c2c_right = container_of(right, struct c2c_hist_entry, he);     \
 665         return (uint64_t) c2c_left->stats.__f -                         \
 666                (uint64_t) c2c_right->stats.__f;                         \
 667 }
 668
 669 #define STAT_FN(__f)            \
 670         STAT_FN_ENTRY(__f)      \
 671         STAT_FN_CMP(__f)
 672
 673 STAT_FN(rmt_hitm)
 674 STAT_FN(lcl_hitm)
 675 STAT_FN(rmt_peer)
 676 STAT_FN(lcl_peer)
 677 STAT_FN(tot_peer)
 678 STAT_FN(store)
 679 STAT_FN(st_l1hit)
 680 STAT_FN(st_l1miss)
 681 STAT_FN(st_na)
 682 STAT_FN(ld_fbhit)
 683 STAT_FN(ld_l1hit)
 684 STAT_FN(ld_l2hit)
 685 STAT_FN(ld_llchit)
 686 STAT_FN(rmt_hit)
 687
 688 static uint64_t get_load_llc_misses(struct c2c_stats *stats)
 689 {
 690         return stats->lcl_dram +
 691                stats->rmt_dram +
 692                stats->rmt_hitm +
 693                stats->rmt_hit;
 694 }
 695
 696 static uint64_t get_load_cache_hits(struct c2c_stats *stats)
 697 {
 698         return stats->ld_fbhit +
 699                stats->ld_l1hit +
 700                stats->ld_l2hit +
 701                stats->ld_llchit +
 702                stats->lcl_hitm;
 703 }
 704
 705 static uint64_t get_stores(struct c2c_stats *stats)
 706 {
 707         return stats->st_l1hit +
 708                stats->st_l1miss +
 709                stats->st_na;
 710 }
 711
 712 static uint64_t total_records(struct c2c_stats *stats)
 713 {
 714         return get_load_llc_misses(stats) +
 715                get_load_cache_hits(stats) +
 716                get_stores(stats);
 717 }
 718
 719 static int
 720 tot_recs_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 721                 struct hist_entry *he)
 722 {
 723         struct c2c_hist_entry *c2c_he;
 724         int width = c2c_width(fmt, hpp, he->hists);
 725         uint64_t tot_recs;
 726
 727         c2c_he = container_of(he, struct c2c_hist_entry, he);
 728         tot_recs = total_records(&c2c_he->stats);
 729
 730         return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs);
 731 }
 732
 733 static int64_t
 734 tot_recs_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 735              struct hist_entry *left, struct hist_entry *right)
 736 {
 737         struct c2c_hist_entry *c2c_left;
 738         struct c2c_hist_entry *c2c_right;
 739         uint64_t tot_recs_left;
 740         uint64_t tot_recs_right;
 741
 742         c2c_left  = container_of(left, struct c2c_hist_entry, he);
 743         c2c_right = container_of(right, struct c2c_hist_entry, he);
 744
 745         tot_recs_left  = total_records(&c2c_left->stats);
 746         tot_recs_right = total_records(&c2c_right->stats);
 747
 748         return tot_recs_left - tot_recs_right;
 749 }
 750
 751 static uint64_t total_loads(struct c2c_stats *stats)
 752 {
 753         return get_load_llc_misses(stats) +
 754                get_load_cache_hits(stats);
 755 }
 756
 757 static int
 758 tot_loads_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 759                 struct hist_entry *he)
 760 {
 761         struct c2c_hist_entry *c2c_he;
 762         int width = c2c_width(fmt, hpp, he->hists);
 763         uint64_t tot_recs;
 764
 765         c2c_he = container_of(he, struct c2c_hist_entry, he);
 766         tot_recs = total_loads(&c2c_he->stats);
 767
 768         return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs);
 769 }
 770
 771 static int64_t
 772 tot_loads_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 773               struct hist_entry *left, struct hist_entry *right)
 774 {
 775         struct c2c_hist_entry *c2c_left;
 776         struct c2c_hist_entry *c2c_right;
 777         uint64_t tot_recs_left;
 778         uint64_t tot_recs_right;
 779
 780         c2c_left  = container_of(left, struct c2c_hist_entry, he);
 781         c2c_right = container_of(right, struct c2c_hist_entry, he);
 782
 783         tot_recs_left  = total_loads(&c2c_left->stats);
 784         tot_recs_right = total_loads(&c2c_right->stats);
 785
 786         return tot_recs_left - tot_recs_right;
 787 }
 788
 789 typedef double (get_percent_cb)(struct c2c_hist_entry *);
 790
 791 static int
 792 percent_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 793               struct hist_entry *he, get_percent_cb get_percent)
 794 {
 795         struct c2c_hist_entry *c2c_he;
 796         int width = c2c_width(fmt, hpp, he->hists);
 797         double per;
 798
 799         c2c_he = container_of(he, struct c2c_hist_entry, he);
 800         per = get_percent(c2c_he);
 801
 802 #ifdef HAVE_SLANG_SUPPORT
 803         if (use_browser)
 804                 return __hpp__slsmg_color_printf(hpp, "%*.2f%%", width - 1, per);
 805 #endif
 806         return hpp_color_scnprintf(hpp, "%*.2f%%", width - 1, per);
 807 }
 808
 809 static double percent_costly_snoop(struct c2c_hist_entry *c2c_he)
 810 {
 811         struct c2c_hists *hists;
 812         struct c2c_stats *stats;
 813         struct c2c_stats *total;
 814         int tot = 0, st = 0;
 815         double p;
 816
 817         hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);
 818         stats = &c2c_he->stats;
 819         total = &hists->stats;
 820
 821         switch (c2c.display) {
 822         case DISPLAY_RMT_HITM:
 823                 st  = stats->rmt_hitm;
 824                 tot = total->rmt_hitm;
 825                 break;
 826         case DISPLAY_LCL_HITM:
 827                 st  = stats->lcl_hitm;
 828                 tot = total->lcl_hitm;
 829                 break;
 830         case DISPLAY_TOT_HITM:
 831                 st  = stats->tot_hitm;
 832                 tot = total->tot_hitm;
 833                 break;
 834         case DISPLAY_SNP_PEER:
 835                 st  = stats->tot_peer;
 836                 tot = total->tot_peer;
 837                 break;
 838         default:
 839                 break;
 840         }
 841
 842         p = tot ? (double) st / tot : 0;
 843
 844         return 100 * p;
 845 }
 846
 847 #define PERC_STR(__s, __v)                              \
 848 ({                                                      \
 849         scnprintf(__s, sizeof(__s), "%.2F%%", __v);     \
 850         __s;                                            \
 851 })
 852
 853 static int
 854 percent_costly_snoop_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 855                            struct hist_entry *he)
 856 {
 857         struct c2c_hist_entry *c2c_he;
 858         int width = c2c_width(fmt, hpp, he->hists);
 859         char buf[10];
 860         double per;
 861
 862         c2c_he = container_of(he, struct c2c_hist_entry, he);
 863         per = percent_costly_snoop(c2c_he);
 864         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 865 }
 866
 867 static int
 868 percent_costly_snoop_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 869                            struct hist_entry *he)
 870 {
 871         return percent_color(fmt, hpp, he, percent_costly_snoop);
 872 }
 873
 874 static int64_t
 875 percent_costly_snoop_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 876                          struct hist_entry *left, struct hist_entry *right)
 877 {
 878         struct c2c_hist_entry *c2c_left;
 879         struct c2c_hist_entry *c2c_right;
 880         double per_left;
 881         double per_right;
 882
 883         c2c_left  = container_of(left, struct c2c_hist_entry, he);
 884         c2c_right = container_of(right, struct c2c_hist_entry, he);
 885
 886         per_left  = percent_costly_snoop(c2c_left);
 887         per_right = percent_costly_snoop(c2c_right);
 888
 889         return per_left - per_right;
 890 }
 891
 892 static struct c2c_stats *he_stats(struct hist_entry *he)
 893 {
 894         struct c2c_hist_entry *c2c_he;
 895
 896         c2c_he = container_of(he, struct c2c_hist_entry, he);
 897         return &c2c_he->stats;
 898 }
 899
 900 static struct c2c_stats *total_stats(struct hist_entry *he)
 901 {
 902         struct c2c_hists *hists;
 903
 904         hists = container_of(he->hists, struct c2c_hists, hists);
 905         return &hists->stats;
 906 }
 907
 908 static double percent(u32 st, u32 tot)
 909 {
 910         return tot ? 100. * (double) st / (double) tot : 0;
 911 }
 912
 913 #define PERCENT(__h, __f) percent(he_stats(__h)->__f, total_stats(__h)->__f)
 914
 915 #define PERCENT_FN(__f)                                                         \
 916 static double percent_ ## __f(struct c2c_hist_entry *c2c_he)                    \
 917 {                                                                               \
 918         struct c2c_hists *hists;                                                \
 919                                                                                 \
 920         hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);        \
 921         return percent(c2c_he->stats.__f, hists->stats.__f);                    \
 922 }
 923
 924 PERCENT_FN(rmt_hitm)
 925 PERCENT_FN(lcl_hitm)
 926 PERCENT_FN(rmt_peer)
 927 PERCENT_FN(lcl_peer)
 928 PERCENT_FN(st_l1hit)
 929 PERCENT_FN(st_l1miss)
 930 PERCENT_FN(st_na)
 931
 932 static int
 933 percent_rmt_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 934                        struct hist_entry *he)
 935 {
 936         int width = c2c_width(fmt, hpp, he->hists);
 937         double per = PERCENT(he, rmt_hitm);
 938         char buf[10];
 939
 940         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 941 }
 942
 943 static int
 944 percent_rmt_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 945                        struct hist_entry *he)
 946 {
 947         return percent_color(fmt, hpp, he, percent_rmt_hitm);
 948 }
 949
 950 static int64_t
 951 percent_rmt_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 952                      struct hist_entry *left, struct hist_entry *right)
 953 {
 954         double per_left;
 955         double per_right;
 956
 957         per_left  = PERCENT(left, rmt_hitm);
 958         per_right = PERCENT(right, rmt_hitm);
 959
 960         return per_left - per_right;
 961 }
 962
 963 static int
 964 percent_lcl_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 965                        struct hist_entry *he)
 966 {
 967         int width = c2c_width(fmt, hpp, he->hists);
 968         double per = PERCENT(he, lcl_hitm);
 969         char buf[10];
 970
 971         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 972 }
 973
 974 static int
 975 percent_lcl_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 976                        struct hist_entry *he)
 977 {
 978         return percent_color(fmt, hpp, he, percent_lcl_hitm);
 979 }
 980
 981 static int64_t
 982 percent_lcl_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
 983                      struct hist_entry *left, struct hist_entry *right)
 984 {
 985         double per_left;
 986         double per_right;
 987
 988         per_left  = PERCENT(left, lcl_hitm);
 989         per_right = PERCENT(right, lcl_hitm);
 990
 991         return per_left - per_right;
 992 }
 993
 994 static int
 995 percent_lcl_peer_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 996                        struct hist_entry *he)
 997 {
 998         int width = c2c_width(fmt, hpp, he->hists);
 999         double per = PERCENT(he, lcl_peer);
1000         char buf[10];
1001
1002         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
1003 }
1004
1005 static int
1006 percent_lcl_peer_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1007                        struct hist_entry *he)
1008 {
1009         return percent_color(fmt, hpp, he, percent_lcl_peer);
1010 }
1011
1012 static int64_t
1013 percent_lcl_peer_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
1014                      struct hist_entry *left, struct hist_entry *right)
1015 {
1016         double per_left;
1017         double per_right;
1018
1019         per_left  = PERCENT(left, lcl_peer);
1020         per_right = PERCENT(right, lcl_peer);
1021
1022         return per_left - per_right;
1023 }
1024
1025 static int
1026 percent_rmt_peer_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1027                        struct hist_entry *he)
1028 {
1029         int width = c2c_width(fmt, hpp, he->hists);
1030         double per = PERCENT(he, rmt_peer);
1031         char buf[10];
1032
1033         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
1034 }
1035
1036 static int
1037 percent_rmt_peer_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1038                        struct hist_entry *he)
1039 {
1040         return percent_color(fmt, hpp, he, percent_rmt_peer);
1041 }
1042
1043 static int64_t
1044 percent_rmt_peer_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
1045                      struct hist_entry *left, struct hist_entry *right)
1046 {
1047         double per_left;
1048         double per_right;
1049
1050         per_left  = PERCENT(left, rmt_peer);
1051         per_right = PERCENT(right, rmt_peer);
1052
1053         return per_left - per_right;
1054 }
1055
1056 static int
1057 percent_stores_l1hit_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1058                            struct hist_entry *he)
1059 {
1060         int width = c2c_width(fmt, hpp, he->hists);
1061         double per = PERCENT(he, st_l1hit);
1062         char buf[10];
1063
1064         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
1065 }
1066
1067 static int
1068 percent_stores_l1hit_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1069                            struct hist_entry *he)
1070 {
1071         return percent_color(fmt, hpp, he, percent_st_l1hit);
1072 }
1073
1074 static int64_t
1075 percent_stores_l1hit_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
1076                         struct hist_entry *left, struct hist_entry *right)
1077 {
1078         double per_left;
1079         double per_right;
1080
1081         per_left  = PERCENT(left, st_l1hit);
1082         per_right = PERCENT(right, st_l1hit);
1083
1084         return per_left - per_right;
1085 }
1086
1087 static int
1088 percent_stores_l1miss_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1089                            struct hist_entry *he)
1090 {
1091         int width = c2c_width(fmt, hpp, he->hists);
1092         double per = PERCENT(he, st_l1miss);
1093         char buf[10];
1094
1095         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
1096 }
1097
1098 static int
1099 percent_stores_l1miss_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1100                             struct hist_entry *he)
1101 {
1102         return percent_color(fmt, hpp, he, percent_st_l1miss);
1103 }
1104
1105 static int64_t
1106 percent_stores_l1miss_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
1107                           struct hist_entry *left, struct hist_entry *right)
1108 {
1109         double per_left;
1110         double per_right;
1111
1112         per_left  = PERCENT(left, st_l1miss);
1113         per_right = PERCENT(right, st_l1miss);
1114
1115         return per_left - per_right;
1116 }
1117
1118 static int
1119 percent_stores_na_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1120                         struct hist_entry *he)
1121 {
1122         int width = c2c_width(fmt, hpp, he->hists);
1123         double per = PERCENT(he, st_na);
1124         char buf[10];
1125
1126         return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
1127 }
1128
1129 static int
1130 percent_stores_na_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1131                         struct hist_entry *he)
1132 {
1133         return percent_color(fmt, hpp, he, percent_st_na);
1134 }
1135
1136 static int64_t
1137 percent_stores_na_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
1138                       struct hist_entry *left, struct hist_entry *right)
1139 {
1140         double per_left;
1141         double per_right;
1142
1143         per_left  = PERCENT(left, st_na);
1144         per_right = PERCENT(right, st_na);
1145
1146         return per_left - per_right;
1147 }
1148
1149 STAT_FN(lcl_dram)
1150 STAT_FN(rmt_dram)
1151
1152 static int
1153 pid_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1154           struct hist_entry *he)
1155 {
1156         int width = c2c_width(fmt, hpp, he->hists);
1157
1158         return scnprintf(hpp->buf, hpp->size, "%*d", width, thread__pid(he->thread));
1159 }
1160
1161 static int64_t
1162 pid_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
1163         struct hist_entry *left, struct hist_entry *right)
1164 {
1165         return thread__pid(left->thread) - thread__pid(right->thread);
1166 }
1167
1168 static int64_t
1169 empty_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
1170           struct hist_entry *left __maybe_unused,
1171           struct hist_entry *right __maybe_unused)
1172 {
1173         return 0;
1174 }
1175
1176 static int display_metrics(struct perf_hpp *hpp, u32 val, u32 sum)
1177 {
1178         int ret;
1179
1180         if (sum != 0)
1181                 ret = scnprintf(hpp->buf, hpp->size, "%5.1f%% ",
1182                                 percent(val, sum));
1183         else
1184                 ret = scnprintf(hpp->buf, hpp->size, "%6s ", "n/a");
1185
1186         return ret;
1187 }
1188
1189 static int
1190 node_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp,
1191            struct hist_entry *he)
1192 {
1193         struct c2c_hist_entry *c2c_he;
1194         bool first = true;
1195         int node;
1196         int ret = 0;
1197
1198         c2c_he = container_of(he, struct c2c_hist_entry, he);
1199
1200         for (node = 0; node < c2c.nodes_cnt; node++) {
1201                 DECLARE_BITMAP(set, c2c.cpus_cnt);
1202
1203                 bitmap_zero(set, c2c.cpus_cnt);
1204                 bitmap_and(set, c2c_he->cpuset, c2c.nodes[node], c2c.cpus_cnt);
1205
1206                 if (bitmap_empty(set, c2c.cpus_cnt)) {
1207                         if (c2c.node_info == 1) {
1208                                 ret = scnprintf(hpp->buf, hpp->size, "%21s", " ");
1209                                 advance_hpp(hpp, ret);
1210                         }
1211                         continue;
1212                 }
1213
1214                 if (!first) {
1215                         ret = scnprintf(hpp->buf, hpp->size, " ");
1216                         advance_hpp(hpp, ret);
1217                 }
1218
1219                 switch (c2c.node_info) {
1220                 case 0:
1221                         ret = scnprintf(hpp->buf, hpp->size, "%2d", node);
1222                         advance_hpp(hpp, ret);
1223                         break;
1224                 case 1:
1225                 {
1226                         int num = bitmap_weight(set, c2c.cpus_cnt);
1227                         struct c2c_stats *stats = &c2c_he->node_stats[node];
1228
1229                         ret = scnprintf(hpp->buf, hpp->size, "%2d{%2d ", node, num);
1230                         advance_hpp(hpp, ret);
1231
1232                         switch (c2c.display) {
1233                         case DISPLAY_RMT_HITM:
1234                                 ret = display_metrics(hpp, stats->rmt_hitm,
1235                                                       c2c_he->stats.rmt_hitm);
1236                                 break;
1237                         case DISPLAY_LCL_HITM:
1238                                 ret = display_metrics(hpp, stats->lcl_hitm,
1239                                                       c2c_he->stats.lcl_hitm);
1240                                 break;
1241                         case DISPLAY_TOT_HITM:
1242                                 ret = display_metrics(hpp, stats->tot_hitm,
1243                                                       c2c_he->stats.tot_hitm);
1244                                 break;
1245                         case DISPLAY_SNP_PEER:
1246                                 ret = display_metrics(hpp, stats->tot_peer,
1247                                                       c2c_he->stats.tot_peer);
1248                                 break;
1249                         default:
1250                                 break;
1251                         }
1252
1253                         advance_hpp(hpp, ret);
1254
1255                         if (c2c_he->stats.store > 0) {
1256                                 ret = scnprintf(hpp->buf, hpp->size, "%5.1f%%}",
1257                                                 percent(stats->store, c2c_he->stats.store));
1258                         } else {
1259                                 ret = scnprintf(hpp->buf, hpp->size, "%6s}", "n/a");
1260                         }
1261
1262                         advance_hpp(hpp, ret);
1263                         break;
1264                 }
1265                 case 2:
1266                         ret = scnprintf(hpp->buf, hpp->size, "%2d{", node);
1267                         advance_hpp(hpp, ret);
1268
1269                         ret = bitmap_scnprintf(set, c2c.cpus_cnt, hpp->buf, hpp->size);
1270                         advance_hpp(hpp, ret);
1271
1272                         ret = scnprintf(hpp->buf, hpp->size, "}");
1273                         advance_hpp(hpp, ret);
1274                         break;
1275                 default:
1276                         break;
1277                 }
1278
1279                 first = false;
1280         }
1281
1282         return 0;
1283 }
1284
1285 static int
1286 mean_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1287            struct hist_entry *he, double mean)
1288 {
1289         int width = c2c_width(fmt, hpp, he->hists);
1290         char buf[10];
1291
1292         scnprintf(buf, 10, "%6.0f", mean);
1293         return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
1294 }
1295
1296 #define MEAN_ENTRY(__func, __val)                                               \
1297 static int                                                                      \
1298 __func(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, struct hist_entry *he)   \
1299 {                                                                               \
1300         struct c2c_hist_entry *c2c_he;                                          \
1301         c2c_he = container_of(he, struct c2c_hist_entry, he);                   \
1302         return mean_entry(fmt, hpp, he, avg_stats(&c2c_he->cstats.__val));      \
1303 }
1304
1305 MEAN_ENTRY(mean_rmt_entry,  rmt_hitm);
1306 MEAN_ENTRY(mean_lcl_entry,  lcl_hitm);
1307 MEAN_ENTRY(mean_load_entry, load);
1308 MEAN_ENTRY(mean_rmt_peer_entry, rmt_peer);
1309 MEAN_ENTRY(mean_lcl_peer_entry, lcl_peer);
1310
1311 static int
1312 cpucnt_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1313              struct hist_entry *he)
1314 {
1315         struct c2c_hist_entry *c2c_he;
1316         int width = c2c_width(fmt, hpp, he->hists);
1317         char buf[10];
1318
1319         c2c_he = container_of(he, struct c2c_hist_entry, he);
1320
1321         scnprintf(buf, 10, "%d", bitmap_weight(c2c_he->cpuset, c2c.cpus_cnt));
1322         return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
1323 }
1324
1325 static int
1326 cl_idx_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1327              struct hist_entry *he)
1328 {
1329         struct c2c_hist_entry *c2c_he;
1330         int width = c2c_width(fmt, hpp, he->hists);
1331         char buf[10];
1332
1333         c2c_he = container_of(he, struct c2c_hist_entry, he);
1334
1335         scnprintf(buf, 10, "%u", c2c_he->cacheline_idx);
1336         return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
1337 }
1338
1339 static int
1340 cl_idx_empty_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1341                    struct hist_entry *he)
1342 {
1343         int width = c2c_width(fmt, hpp, he->hists);
1344
1345         return scnprintf(hpp->buf, hpp->size, "%*s", width, "");
1346 }
1347
1348 #define HEADER_LOW(__h)                 \
1349         {                               \
1350                 .line[1] = {            \
1351                         .text = __h,    \
1352                 },                      \
1353         }
1354
1355 #define HEADER_BOTH(__h0, __h1)         \
1356         {                               \
1357                 .line[0] = {            \
1358                         .text = __h0,   \
1359                 },                      \
1360                 .line[1] = {            \
1361                         .text = __h1,   \
1362                 },                      \
1363         }
1364
1365 #define HEADER_SPAN(__h0, __h1, __s)    \
1366         {                               \
1367                 .line[0] = {            \
1368                         .text = __h0,   \
1369                         .span = __s,    \
1370                 },                      \
1371                 .line[1] = {            \
1372                         .text = __h1,   \
1373                 },                      \
1374         }
1375
1376 #define HEADER_SPAN_LOW(__h)            \
1377         {                               \
1378                 .line[1] = {            \
1379                         .text = __h,    \
1380                 },                      \
1381         }
1382
1383 static struct c2c_dimension dim_dcacheline = {
1384         .header         = HEADER_SPAN("--- Cacheline ----", "Address", 2),
1385         .name           = "dcacheline",
1386         .cmp            = dcacheline_cmp,
1387         .entry          = dcacheline_entry,
1388         .width          = 18,
1389 };
1390
1391 static struct c2c_dimension dim_dcacheline_node = {
1392         .header         = HEADER_LOW("Node"),
1393         .name           = "dcacheline_node",
1394         .cmp            = empty_cmp,
1395         .entry          = dcacheline_node_entry,
1396         .width          = 4,
1397 };
1398
1399 static struct c2c_dimension dim_dcacheline_count = {
1400         .header         = HEADER_LOW("PA cnt"),
1401         .name           = "dcacheline_count",
1402         .cmp            = empty_cmp,
1403         .entry          = dcacheline_node_count,
1404         .width          = 6,
1405 };
1406
1407 static struct c2c_header header_offset_tui = HEADER_SPAN("-----", "Off", 2);
1408
1409 static struct c2c_dimension dim_offset = {
1410         .header         = HEADER_SPAN("--- Data address -", "Offset", 2),
1411         .name           = "offset",
1412         .cmp            = offset_cmp,
1413         .entry          = offset_entry,
1414         .width          = 18,
1415 };
1416
1417 static struct c2c_dimension dim_offset_node = {
1418         .header         = HEADER_LOW("Node"),
1419         .name           = "offset_node",
1420         .cmp            = empty_cmp,
1421         .entry          = dcacheline_node_entry,
1422         .width          = 4,
1423 };
1424
1425 static struct c2c_dimension dim_iaddr = {
1426         .header         = HEADER_LOW("Code address"),
1427         .name           = "iaddr",
1428         .cmp            = iaddr_cmp,
1429         .entry          = iaddr_entry,
1430         .width          = 18,
1431 };
1432
1433 static struct c2c_dimension dim_tot_hitm = {
1434         .header         = HEADER_SPAN("------- Load Hitm -------", "Total", 2),
1435         .name           = "tot_hitm",
1436         .cmp            = tot_hitm_cmp,
1437         .entry          = tot_hitm_entry,
1438         .width          = 7,
1439 };
1440
1441 static struct c2c_dimension dim_lcl_hitm = {
1442         .header         = HEADER_SPAN_LOW("LclHitm"),
1443         .name           = "lcl_hitm",
1444         .cmp            = lcl_hitm_cmp,
1445         .entry          = lcl_hitm_entry,
1446         .width          = 7,
1447 };
1448
1449 static struct c2c_dimension dim_rmt_hitm = {
1450         .header         = HEADER_SPAN_LOW("RmtHitm"),
1451         .name           = "rmt_hitm",
1452         .cmp            = rmt_hitm_cmp,
1453         .entry          = rmt_hitm_entry,
1454         .width          = 7,
1455 };
1456
1457 static struct c2c_dimension dim_tot_peer = {
1458         .header         = HEADER_SPAN("------- Load Peer -------", "Total", 2),
1459         .name           = "tot_peer",
1460         .cmp            = tot_peer_cmp,
1461         .entry          = tot_peer_entry,
1462         .width          = 7,
1463 };
1464
1465 static struct c2c_dimension dim_lcl_peer = {
1466         .header         = HEADER_SPAN_LOW("Local"),
1467         .name           = "lcl_peer",
1468         .cmp            = lcl_peer_cmp,
1469         .entry          = lcl_peer_entry,
1470         .width          = 7,
1471 };
1472
1473 static struct c2c_dimension dim_rmt_peer = {
1474         .header         = HEADER_SPAN_LOW("Remote"),
1475         .name           = "rmt_peer",
1476         .cmp            = rmt_peer_cmp,
1477         .entry          = rmt_peer_entry,
1478         .width          = 7,
1479 };
1480
1481 static struct c2c_dimension dim_cl_rmt_hitm = {
1482         .header         = HEADER_SPAN("----- HITM -----", "Rmt", 1),
1483         .name           = "cl_rmt_hitm",
1484         .cmp            = rmt_hitm_cmp,
1485         .entry          = rmt_hitm_entry,
1486         .width          = 7,
1487 };
1488
1489 static struct c2c_dimension dim_cl_lcl_hitm = {
1490         .header         = HEADER_SPAN_LOW("Lcl"),
1491         .name           = "cl_lcl_hitm",
1492         .cmp            = lcl_hitm_cmp,
1493         .entry          = lcl_hitm_entry,
1494         .width          = 7,
1495 };
1496
1497 static struct c2c_dimension dim_cl_rmt_peer = {
1498         .header         = HEADER_SPAN("----- Peer -----", "Rmt", 1),
1499         .name           = "cl_rmt_peer",
1500         .cmp            = rmt_peer_cmp,
1501         .entry          = rmt_peer_entry,
1502         .width          = 7,
1503 };
1504
1505 static struct c2c_dimension dim_cl_lcl_peer = {
1506         .header         = HEADER_SPAN_LOW("Lcl"),
1507         .name           = "cl_lcl_peer",
1508         .cmp            = lcl_peer_cmp,
1509         .entry          = lcl_peer_entry,
1510         .width          = 7,
1511 };
1512
1513 static struct c2c_dimension dim_tot_stores = {
1514         .header         = HEADER_BOTH("Total", "Stores"),
1515         .name           = "tot_stores",
1516         .cmp            = store_cmp,
1517         .entry          = store_entry,
1518         .width          = 7,
1519 };
1520
1521 static struct c2c_dimension dim_stores_l1hit = {
1522         .header         = HEADER_SPAN("--------- Stores --------", "L1Hit", 2),
1523         .name           = "stores_l1hit",
1524         .cmp            = st_l1hit_cmp,
1525         .entry          = st_l1hit_entry,
1526         .width          = 7,
1527 };
1528
1529 static struct c2c_dimension dim_stores_l1miss = {
1530         .header         = HEADER_SPAN_LOW("L1Miss"),
1531         .name           = "stores_l1miss",
1532         .cmp            = st_l1miss_cmp,
1533         .entry          = st_l1miss_entry,
1534         .width          = 7,
1535 };
1536
1537 static struct c2c_dimension dim_stores_na = {
1538         .header         = HEADER_SPAN_LOW("N/A"),
1539         .name           = "stores_na",
1540         .cmp            = st_na_cmp,
1541         .entry          = st_na_entry,
1542         .width          = 7,
1543 };
1544
1545 static struct c2c_dimension dim_cl_stores_l1hit = {
1546         .header         = HEADER_SPAN("------- Store Refs ------", "L1 Hit", 2),
1547         .name           = "cl_stores_l1hit",
1548         .cmp            = st_l1hit_cmp,
1549         .entry          = st_l1hit_entry,
1550         .width          = 7,
1551 };
1552
1553 static struct c2c_dimension dim_cl_stores_l1miss = {
1554         .header         = HEADER_SPAN_LOW("L1 Miss"),
1555         .name           = "cl_stores_l1miss",
1556         .cmp            = st_l1miss_cmp,
1557         .entry          = st_l1miss_entry,
1558         .width          = 7,
1559 };
1560
1561 static struct c2c_dimension dim_cl_stores_na = {
1562         .header         = HEADER_SPAN_LOW("N/A"),
1563         .name           = "cl_stores_na",
1564         .cmp            = st_na_cmp,
1565         .entry          = st_na_entry,
1566         .width          = 7,
1567 };
1568
1569 static struct c2c_dimension dim_ld_fbhit = {
1570         .header         = HEADER_SPAN("----- Core Load Hit -----", "FB", 2),
1571         .name           = "ld_fbhit",
1572         .cmp            = ld_fbhit_cmp,
1573         .entry          = ld_fbhit_entry,
1574         .width          = 7,
1575 };
1576
1577 static struct c2c_dimension dim_ld_l1hit = {
1578         .header         = HEADER_SPAN_LOW("L1"),
1579         .name           = "ld_l1hit",
1580         .cmp            = ld_l1hit_cmp,
1581         .entry          = ld_l1hit_entry,
1582         .width          = 7,
1583 };
1584
1585 static struct c2c_dimension dim_ld_l2hit = {
1586         .header         = HEADER_SPAN_LOW("L2"),
1587         .name           = "ld_l2hit",
1588         .cmp            = ld_l2hit_cmp,
1589         .entry          = ld_l2hit_entry,
1590         .width          = 7,
1591 };
1592
1593 static struct c2c_dimension dim_ld_llchit = {
1594         .header         = HEADER_SPAN("- LLC Load Hit --", "LclHit", 1),
1595         .name           = "ld_lclhit",
1596         .cmp            = ld_llchit_cmp,
1597         .entry          = ld_llchit_entry,
1598         .width          = 8,
1599 };
1600
1601 static struct c2c_dimension dim_ld_rmthit = {
1602         .header         = HEADER_SPAN("- RMT Load Hit --", "RmtHit", 1),
1603         .name           = "ld_rmthit",
1604         .cmp            = rmt_hit_cmp,
1605         .entry          = rmt_hit_entry,
1606         .width          = 8,
1607 };
1608
1609 static struct c2c_dimension dim_tot_recs = {
1610         .header         = HEADER_BOTH("Total", "records"),
1611         .name           = "tot_recs",
1612         .cmp            = tot_recs_cmp,
1613         .entry          = tot_recs_entry,
1614         .width          = 7,
1615 };
1616
1617 static struct c2c_dimension dim_tot_loads = {
1618         .header         = HEADER_BOTH("Total", "Loads"),
1619         .name           = "tot_loads",
1620         .cmp            = tot_loads_cmp,
1621         .entry          = tot_loads_entry,
1622         .width          = 7,
1623 };
1624
1625 static struct c2c_header percent_costly_snoop_header[] = {
1626         [DISPLAY_LCL_HITM] = HEADER_BOTH("Lcl", "Hitm"),
1627         [DISPLAY_RMT_HITM] = HEADER_BOTH("Rmt", "Hitm"),
1628         [DISPLAY_TOT_HITM] = HEADER_BOTH("Tot", "Hitm"),
1629         [DISPLAY_SNP_PEER] = HEADER_BOTH("Peer", "Snoop"),
1630 };
1631
1632 static struct c2c_dimension dim_percent_costly_snoop = {
1633         .name           = "percent_costly_snoop",
1634         .cmp            = percent_costly_snoop_cmp,
1635         .entry          = percent_costly_snoop_entry,
1636         .color          = percent_costly_snoop_color,
1637         .width          = 7,
1638 };
1639
1640 static struct c2c_dimension dim_percent_rmt_hitm = {
1641         .header         = HEADER_SPAN("----- HITM -----", "RmtHitm", 1),
1642         .name           = "percent_rmt_hitm",
1643         .cmp            = percent_rmt_hitm_cmp,
1644         .entry          = percent_rmt_hitm_entry,
1645         .color          = percent_rmt_hitm_color,
1646         .width          = 7,
1647 };
1648
1649 static struct c2c_dimension dim_percent_lcl_hitm = {
1650         .header         = HEADER_SPAN_LOW("LclHitm"),
1651         .name           = "percent_lcl_hitm",
1652         .cmp            = percent_lcl_hitm_cmp,
1653         .entry          = percent_lcl_hitm_entry,
1654         .color          = percent_lcl_hitm_color,
1655         .width          = 7,
1656 };
1657
1658 static struct c2c_dimension dim_percent_rmt_peer = {
1659         .header         = HEADER_SPAN("-- Peer Snoop --", "Rmt", 1),
1660         .name           = "percent_rmt_peer",
1661         .cmp            = percent_rmt_peer_cmp,
1662         .entry          = percent_rmt_peer_entry,
1663         .color          = percent_rmt_peer_color,
1664         .width          = 7,
1665 };
1666
1667 static struct c2c_dimension dim_percent_lcl_peer = {
1668         .header         = HEADER_SPAN_LOW("Lcl"),
1669         .name           = "percent_lcl_peer",
1670         .cmp            = percent_lcl_peer_cmp,
1671         .entry          = percent_lcl_peer_entry,
1672         .color          = percent_lcl_peer_color,
1673         .width          = 7,
1674 };
1675
1676 static struct c2c_dimension dim_percent_stores_l1hit = {
1677         .header         = HEADER_SPAN("------- Store Refs ------", "L1 Hit", 2),
1678         .name           = "percent_stores_l1hit",
1679         .cmp            = percent_stores_l1hit_cmp,
1680         .entry          = percent_stores_l1hit_entry,
1681         .color          = percent_stores_l1hit_color,
1682         .width          = 7,
1683 };
1684
1685 static struct c2c_dimension dim_percent_stores_l1miss = {
1686         .header         = HEADER_SPAN_LOW("L1 Miss"),
1687         .name           = "percent_stores_l1miss",
1688         .cmp            = percent_stores_l1miss_cmp,
1689         .entry          = percent_stores_l1miss_entry,
1690         .color          = percent_stores_l1miss_color,
1691         .width          = 7,
1692 };
1693
1694 static struct c2c_dimension dim_percent_stores_na = {
1695         .header         = HEADER_SPAN_LOW("N/A"),
1696         .name           = "percent_stores_na",
1697         .cmp            = percent_stores_na_cmp,
1698         .entry          = percent_stores_na_entry,
1699         .color          = percent_stores_na_color,
1700         .width          = 7,
1701 };
1702
1703 static struct c2c_dimension dim_dram_lcl = {
1704         .header         = HEADER_SPAN("--- Load Dram ----", "Lcl", 1),
1705         .name           = "dram_lcl",
1706         .cmp            = lcl_dram_cmp,
1707         .entry          = lcl_dram_entry,
1708         .width          = 8,
1709 };
1710
1711 static struct c2c_dimension dim_dram_rmt = {
1712         .header         = HEADER_SPAN_LOW("Rmt"),
1713         .name           = "dram_rmt",
1714         .cmp            = rmt_dram_cmp,
1715         .entry          = rmt_dram_entry,
1716         .width          = 8,
1717 };
1718
1719 static struct c2c_dimension dim_pid = {
1720         .header         = HEADER_LOW("Pid"),
1721         .name           = "pid",
1722         .cmp            = pid_cmp,
1723         .entry          = pid_entry,
1724         .width          = 7,
1725 };
1726
1727 static struct c2c_dimension dim_tid = {
1728         .header         = HEADER_LOW("Tid"),
1729         .name           = "tid",
1730         .se             = &sort_thread,
1731 };
1732
1733 static struct c2c_dimension dim_symbol = {
1734         .name           = "symbol",
1735         .se             = &sort_sym,
1736 };
1737
1738 static struct c2c_dimension dim_dso = {
1739         .header         = HEADER_BOTH("Shared", "Object"),
1740         .name           = "dso",
1741         .se             = &sort_dso,
1742 };
1743
1744 static struct c2c_dimension dim_node = {
1745         .name           = "node",
1746         .cmp            = empty_cmp,
1747         .entry          = node_entry,
1748         .width          = 4,
1749 };
1750
1751 static struct c2c_dimension dim_mean_rmt = {
1752         .header         = HEADER_SPAN("---------- cycles ----------", "rmt hitm", 2),
1753         .name           = "mean_rmt",
1754         .cmp            = empty_cmp,
1755         .entry          = mean_rmt_entry,
1756         .width          = 8,
1757 };
1758
1759 static struct c2c_dimension dim_mean_lcl = {
1760         .header         = HEADER_SPAN_LOW("lcl hitm"),
1761         .name           = "mean_lcl",
1762         .cmp            = empty_cmp,
1763         .entry          = mean_lcl_entry,
1764         .width          = 8,
1765 };
1766
1767 static struct c2c_dimension dim_mean_load = {
1768         .header         = HEADER_SPAN_LOW("load"),
1769         .name           = "mean_load",
1770         .cmp            = empty_cmp,
1771         .entry          = mean_load_entry,
1772         .width          = 8,
1773 };
1774
1775 static struct c2c_dimension dim_mean_rmt_peer = {
1776         .header         = HEADER_SPAN("---------- cycles ----------", "rmt peer", 2),
1777         .name           = "mean_rmt_peer",
1778         .cmp            = empty_cmp,
1779         .entry          = mean_rmt_peer_entry,
1780         .width          = 8,
1781 };
1782
1783 static struct c2c_dimension dim_mean_lcl_peer = {
1784         .header         = HEADER_SPAN_LOW("lcl peer"),
1785         .name           = "mean_lcl_peer",
1786         .cmp            = empty_cmp,
1787         .entry          = mean_lcl_peer_entry,
1788         .width          = 8,
1789 };
1790
1791 static struct c2c_dimension dim_cpucnt = {
1792         .header         = HEADER_BOTH("cpu", "cnt"),
1793         .name           = "cpucnt",
1794         .cmp            = empty_cmp,
1795         .entry          = cpucnt_entry,
1796         .width          = 8,
1797 };
1798
1799 static struct c2c_dimension dim_srcline = {
1800         .name           = "cl_srcline",
1801         .se             = &sort_srcline,
1802 };
1803
1804 static struct c2c_dimension dim_dcacheline_idx = {
1805         .header         = HEADER_LOW("Index"),
1806         .name           = "cl_idx",
1807         .cmp            = empty_cmp,
1808         .entry          = cl_idx_entry,
1809         .width          = 5,
1810 };
1811
1812 static struct c2c_dimension dim_dcacheline_num = {
1813         .header         = HEADER_LOW("Num"),
1814         .name           = "cl_num",
1815         .cmp            = empty_cmp,
1816         .entry          = cl_idx_entry,
1817         .width          = 5,
1818 };
1819
1820 static struct c2c_dimension dim_dcacheline_num_empty = {
1821         .header         = HEADER_LOW("Num"),
1822         .name           = "cl_num_empty",
1823         .cmp            = empty_cmp,
1824         .entry          = cl_idx_empty_entry,
1825         .width          = 5,
1826 };
1827
1828 static struct c2c_dimension *dimensions[] = {
1829         &dim_dcacheline,
1830         &dim_dcacheline_node,
1831         &dim_dcacheline_count,
1832         &dim_offset,
1833         &dim_offset_node,
1834         &dim_iaddr,
1835         &dim_tot_hitm,
1836         &dim_lcl_hitm,
1837         &dim_rmt_hitm,
1838         &dim_tot_peer,
1839         &dim_lcl_peer,
1840         &dim_rmt_peer,
1841         &dim_cl_lcl_hitm,
1842         &dim_cl_rmt_hitm,
1843         &dim_cl_lcl_peer,
1844         &dim_cl_rmt_peer,
1845         &dim_tot_stores,
1846         &dim_stores_l1hit,
1847         &dim_stores_l1miss,
1848         &dim_stores_na,
1849         &dim_cl_stores_l1hit,
1850         &dim_cl_stores_l1miss,
1851         &dim_cl_stores_na,
1852         &dim_ld_fbhit,
1853         &dim_ld_l1hit,
1854         &dim_ld_l2hit,
1855         &dim_ld_llchit,
1856         &dim_ld_rmthit,
1857         &dim_tot_recs,
1858         &dim_tot_loads,
1859         &dim_percent_costly_snoop,
1860         &dim_percent_rmt_hitm,
1861         &dim_percent_lcl_hitm,
1862         &dim_percent_rmt_peer,
1863         &dim_percent_lcl_peer,
1864         &dim_percent_stores_l1hit,
1865         &dim_percent_stores_l1miss,
1866         &dim_percent_stores_na,
1867         &dim_dram_lcl,
1868         &dim_dram_rmt,
1869         &dim_pid,
1870         &dim_tid,
1871         &dim_symbol,
1872         &dim_dso,
1873         &dim_node,
1874         &dim_mean_rmt,
1875         &dim_mean_lcl,
1876         &dim_mean_rmt_peer,
1877         &dim_mean_lcl_peer,
1878         &dim_mean_load,
1879         &dim_cpucnt,
1880         &dim_srcline,
1881         &dim_dcacheline_idx,
1882         &dim_dcacheline_num,
1883         &dim_dcacheline_num_empty,
1884         NULL,
1885 };
1886
1887 static void fmt_free(struct perf_hpp_fmt *fmt)
1888 {
1889         struct c2c_fmt *c2c_fmt;
1890
1891         c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
1892         free(c2c_fmt);
1893 }
1894
1895 static bool fmt_equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
1896 {
1897         struct c2c_fmt *c2c_a = container_of(a, struct c2c_fmt, fmt);
1898         struct c2c_fmt *c2c_b = container_of(b, struct c2c_fmt, fmt);
1899
1900         return c2c_a->dim == c2c_b->dim;
1901 }
1902
1903 static struct c2c_dimension *get_dimension(const char *name)
1904 {
1905         unsigned int i;
1906
1907         for (i = 0; dimensions[i]; i++) {
1908                 struct c2c_dimension *dim = dimensions[i];
1909
1910                 if (!strcmp(dim->name, name))
1911                         return dim;
1912         }
1913
1914         return NULL;
1915 }
1916
1917 static int c2c_se_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
1918                         struct hist_entry *he)
1919 {
1920         struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
1921         struct c2c_dimension *dim = c2c_fmt->dim;
1922         size_t len = fmt->user_len;
1923
1924         if (!len) {
1925                 len = hists__col_len(he->hists, dim->se->se_width_idx);
1926
1927                 if (dim == &dim_symbol || dim == &dim_srcline)
1928                         len = symbol_width(he->hists, dim->se);
1929         }
1930
1931         return dim->se->se_snprintf(he, hpp->buf, hpp->size, len);
1932 }
1933
1934 static int64_t c2c_se_cmp(struct perf_hpp_fmt *fmt,
1935                           struct hist_entry *a, struct hist_entry *b)
1936 {
1937         struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
1938         struct c2c_dimension *dim = c2c_fmt->dim;
1939
1940         return dim->se->se_cmp(a, b);
1941 }
1942
1943 static int64_t c2c_se_collapse(struct perf_hpp_fmt *fmt,
1944                                struct hist_entry *a, struct hist_entry *b)
1945 {
1946         struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
1947         struct c2c_dimension *dim = c2c_fmt->dim;
1948         int64_t (*collapse_fn)(struct hist_entry *, struct hist_entry *);
1949
1950         collapse_fn = dim->se->se_collapse ?: dim->se->se_cmp;
1951         return collapse_fn(a, b);
1952 }
1953
1954 static struct c2c_fmt *get_format(const char *name)
1955 {
1956         struct c2c_dimension *dim = get_dimension(name);
1957         struct c2c_fmt *c2c_fmt;
1958         struct perf_hpp_fmt *fmt;
1959
1960         if (!dim)
1961                 return NULL;
1962
1963         c2c_fmt = zalloc(sizeof(*c2c_fmt));
1964         if (!c2c_fmt)
1965                 return NULL;
1966
1967         c2c_fmt->dim = dim;
1968
1969         fmt = &c2c_fmt->fmt;
1970         INIT_LIST_HEAD(&fmt->list);
1971         INIT_LIST_HEAD(&fmt->sort_list);
1972
1973         fmt->cmp        = dim->se ? c2c_se_cmp   : dim->cmp;
1974         fmt->sort       = dim->se ? c2c_se_cmp   : dim->cmp;
1975         fmt->color      = dim->se ? NULL         : dim->color;
1976         fmt->entry      = dim->se ? c2c_se_entry : dim->entry;
1977         fmt->header     = c2c_header;
1978         fmt->width      = c2c_width;
1979         fmt->collapse   = dim->se ? c2c_se_collapse : dim->cmp;
1980         fmt->equal      = fmt_equal;
1981         fmt->free       = fmt_free;
1982
1983         return c2c_fmt;
1984 }
1985
1986 static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name)
1987 {
1988         struct c2c_fmt *c2c_fmt = get_format(name);
1989
1990         if (!c2c_fmt) {
1991                 reset_dimensions();
1992                 return output_field_add(hpp_list, name);
1993         }
1994
1995         perf_hpp_list__column_register(hpp_list, &c2c_fmt->fmt);
1996         return 0;
1997 }
1998
1999 static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name)
2000 {
2001         struct c2c_fmt *c2c_fmt = get_format(name);
2002         struct c2c_dimension *dim;
2003
2004         if (!c2c_fmt) {
2005                 reset_dimensions();
2006                 return sort_dimension__add(hpp_list, name, NULL, 0);
2007         }
2008
2009         dim = c2c_fmt->dim;
2010         if (dim == &dim_dso)
2011                 hpp_list->dso = 1;
2012
2013         perf_hpp_list__register_sort_field(hpp_list, &c2c_fmt->fmt);
2014         return 0;
2015 }
2016
2017 #define PARSE_LIST(_list, _fn)                                                  \
2018         do {                                                                    \
2019                 char *tmp, *tok;                                                \
2020                 ret = 0;                                                        \
2021                                                                                 \
2022                 if (!_list)                                                     \
2023                         break;                                                  \
2024                                                                                 \
2025                 for (tok = strtok_r((char *)_list, ", ", &tmp);                 \
2026                                 tok; tok = strtok_r(NULL, ", ", &tmp)) {        \
2027                         ret = _fn(hpp_list, tok);                               \
2028                         if (ret == -EINVAL) {                                   \
2029                                 pr_err("Invalid --fields key: `%s'", tok);      \
2030                                 break;                                          \
2031                         } else if (ret == -ESRCH) {                             \
2032                                 pr_err("Unknown --fields key: `%s'", tok);      \
2033                                 break;                                          \
2034                         }                                                       \
2035                 }                                                               \
2036         } while (0)
2037
2038 static int hpp_list__parse(struct perf_hpp_list *hpp_list,
2039                            const char *output_,
2040                            const char *sort_)
2041 {
2042         char *output = output_ ? strdup(output_) : NULL;
2043         char *sort   = sort_   ? strdup(sort_) : NULL;
2044         int ret;
2045
2046         PARSE_LIST(output, c2c_hists__init_output);
2047         PARSE_LIST(sort,   c2c_hists__init_sort);
2048
2049         /* copy sort keys to output fields */
2050         perf_hpp__setup_output_field(hpp_list);
2051
2052         /*
2053          * We dont need other sorting keys other than those
2054          * we already specified. It also really slows down
2055          * the processing a lot with big number of output
2056          * fields, so switching this off for c2c.
2057          */
2058
2059 #if 0
2060         /* and then copy output fields to sort keys */
2061         perf_hpp__append_sort_keys(&hists->list);
2062 #endif
2063
2064         free(output);
2065         free(sort);
2066         return ret;
2067 }
2068
2069 static int c2c_hists__init(struct c2c_hists *hists,
2070                            const char *sort,
2071                            int nr_header_lines)
2072 {
2073         __hists__init(&hists->hists, &hists->list);
2074
2075         /*
2076          * Initialize only with sort fields, we need to resort
2077          * later anyway, and that's where we add output fields
2078          * as well.
2079          */
2080         perf_hpp_list__init(&hists->list);
2081
2082         /* Overload number of header lines.*/
2083         hists->list.nr_header_lines = nr_header_lines;
2084
2085         return hpp_list__parse(&hists->list, NULL, sort);
2086 }
2087
2088 static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
2089                              const char *output,
2090                              const char *sort)
2091 {
2092         perf_hpp__reset_output_field(&c2c_hists->list);
2093         return hpp_list__parse(&c2c_hists->list, output, sort);
2094 }
2095
2096 #define DISPLAY_LINE_LIMIT  0.001
2097
2098 static u8 filter_display(u32 val, u32 sum)
2099 {
2100         if (sum == 0 || ((double)val / sum) < DISPLAY_LINE_LIMIT)
2101                 return HIST_FILTER__C2C;
2102
2103         return 0;
2104 }
2105
2106 static bool he__display(struct hist_entry *he, struct c2c_stats *stats)
2107 {
2108         struct c2c_hist_entry *c2c_he;
2109
2110         if (c2c.show_all)
2111                 return true;
2112
2113         c2c_he = container_of(he, struct c2c_hist_entry, he);
2114
2115         switch (c2c.display) {
2116         case DISPLAY_LCL_HITM:
2117                 he->filtered = filter_display(c2c_he->stats.lcl_hitm,
2118                                               stats->lcl_hitm);
2119                 break;
2120         case DISPLAY_RMT_HITM:
2121                 he->filtered = filter_display(c2c_he->stats.rmt_hitm,
2122                                               stats->rmt_hitm);
2123                 break;
2124         case DISPLAY_TOT_HITM:
2125                 he->filtered = filter_display(c2c_he->stats.tot_hitm,
2126                                               stats->tot_hitm);
2127                 break;
2128         case DISPLAY_SNP_PEER:
2129                 he->filtered = filter_display(c2c_he->stats.tot_peer,
2130                                               stats->tot_peer);
2131                 break;
2132         default:
2133                 break;
2134         }
2135
2136         return he->filtered == 0;
2137 }
2138
2139 static inline bool is_valid_hist_entry(struct hist_entry *he)
2140 {
2141         struct c2c_hist_entry *c2c_he;
2142         bool has_record = false;
2143
2144         c2c_he = container_of(he, struct c2c_hist_entry, he);
2145
2146         /* It's a valid entry if contains stores */
2147         if (c2c_he->stats.store)
2148                 return true;
2149
2150         switch (c2c.display) {
2151         case DISPLAY_LCL_HITM:
2152                 has_record = !!c2c_he->stats.lcl_hitm;
2153                 break;
2154         case DISPLAY_RMT_HITM:
2155                 has_record = !!c2c_he->stats.rmt_hitm;
2156                 break;
2157         case DISPLAY_TOT_HITM:
2158                 has_record = !!c2c_he->stats.tot_hitm;
2159                 break;
2160         case DISPLAY_SNP_PEER:
2161                 has_record = !!c2c_he->stats.tot_peer;
2162         default:
2163                 break;
2164         }
2165
2166         return has_record;
2167 }
2168
2169 static void set_node_width(struct c2c_hist_entry *c2c_he, int len)
2170 {
2171         struct c2c_dimension *dim;
2172
2173         dim = &c2c.hists == c2c_he->hists ?
2174               &dim_dcacheline_node : &dim_offset_node;
2175
2176         if (len > dim->width)
2177                 dim->width = len;
2178 }
2179
2180 static int set_nodestr(struct c2c_hist_entry *c2c_he)
2181 {
2182         char buf[30];
2183         int len;
2184
2185         if (c2c_he->nodestr)
2186                 return 0;
2187
2188         if (!bitmap_empty(c2c_he->nodeset, c2c.nodes_cnt)) {
2189                 len = bitmap_scnprintf(c2c_he->nodeset, c2c.nodes_cnt,
2190                                       buf, sizeof(buf));
2191         } else {
2192                 len = scnprintf(buf, sizeof(buf), "N/A");
2193         }
2194
2195         set_node_width(c2c_he, len);
2196         c2c_he->nodestr = strdup(buf);
2197         return c2c_he->nodestr ? 0 : -ENOMEM;
2198 }
2199
2200 static void calc_width(struct c2c_hist_entry *c2c_he)
2201 {
2202         struct c2c_hists *c2c_hists;
2203
2204         c2c_hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);
2205         hists__calc_col_len(&c2c_hists->hists, &c2c_he->he);
2206         set_nodestr(c2c_he);
2207 }
2208
2209 static int filter_cb(struct hist_entry *he, void *arg __maybe_unused)
2210 {
2211         struct c2c_hist_entry *c2c_he;
2212
2213         c2c_he = container_of(he, struct c2c_hist_entry, he);
2214
2215         if (c2c.show_src && !he->srcline)
2216                 he->srcline = hist_entry__srcline(he);
2217
2218         calc_width(c2c_he);
2219
2220         if (!is_valid_hist_entry(he))
2221                 he->filtered = HIST_FILTER__C2C;
2222
2223         return 0;
2224 }
2225
2226 static int resort_cl_cb(struct hist_entry *he, void *arg __maybe_unused)
2227 {
2228         struct c2c_hist_entry *c2c_he;
2229         struct c2c_hists *c2c_hists;
2230         bool display = he__display(he, &c2c.shared_clines_stats);
2231
2232         c2c_he = container_of(he, struct c2c_hist_entry, he);
2233         c2c_hists = c2c_he->hists;
2234
2235         if (display && c2c_hists) {
2236                 static unsigned int idx;
2237
2238                 c2c_he->cacheline_idx = idx++;
2239                 calc_width(c2c_he);
2240
2241                 c2c_hists__reinit(c2c_hists, c2c.cl_output, c2c.cl_resort);
2242
2243                 hists__collapse_resort(&c2c_hists->hists, NULL);
2244                 hists__output_resort_cb(&c2c_hists->hists, NULL, filter_cb);
2245         }
2246
2247         return 0;
2248 }
2249
2250 static struct c2c_header header_node_0 = HEADER_LOW("Node");
2251 static struct c2c_header header_node_1_hitms_stores =
2252                 HEADER_LOW("Node{cpus %hitms %stores}");
2253 static struct c2c_header header_node_1_peers_stores =
2254                 HEADER_LOW("Node{cpus %peers %stores}");
2255 static struct c2c_header header_node_2 = HEADER_LOW("Node{cpu list}");
2256
2257 static void setup_nodes_header(void)
2258 {
2259         switch (c2c.node_info) {
2260         case 0:
2261                 dim_node.header = header_node_0;
2262                 break;
2263         case 1:
2264                 if (c2c.display == DISPLAY_SNP_PEER)
2265                         dim_node.header = header_node_1_peers_stores;
2266                 else
2267                         dim_node.header = header_node_1_hitms_stores;
2268                 break;
2269         case 2:
2270                 dim_node.header = header_node_2;
2271                 break;
2272         default:
2273                 break;
2274         }
2275
2276         return;
2277 }
2278
2279 static int setup_nodes(struct perf_session *session)
2280 {
2281         struct numa_node *n;
2282         unsigned long **nodes;
2283         int node, idx;
2284         struct perf_cpu cpu;
2285         int *cpu2node;
2286
2287         if (c2c.node_info > 2)
2288                 c2c.node_info = 2;
2289
2290         c2c.nodes_cnt = session->header.env.nr_numa_nodes;
2291         c2c.cpus_cnt  = session->header.env.nr_cpus_avail;
2292
2293         n = session->header.env.numa_nodes;
2294         if (!n)
2295                 return -EINVAL;
2296
2297         nodes = zalloc(sizeof(unsigned long *) * c2c.nodes_cnt);
2298         if (!nodes)
2299                 return -ENOMEM;
2300
2301         c2c.nodes = nodes;
2302
2303         cpu2node = zalloc(sizeof(int) * c2c.cpus_cnt);
2304         if (!cpu2node)
2305                 return -ENOMEM;
2306
2307         for (idx = 0; idx < c2c.cpus_cnt; idx++)
2308                 cpu2node[idx] = -1;
2309
2310         c2c.cpu2node = cpu2node;
2311
2312         for (node = 0; node < c2c.nodes_cnt; node++) {
2313                 struct perf_cpu_map *map = n[node].map;
2314                 unsigned long *set;
2315
2316                 set = bitmap_zalloc(c2c.cpus_cnt);
2317                 if (!set)
2318                         return -ENOMEM;
2319
2320                 nodes[node] = set;
2321
2322                 /* empty node, skip */
2323                 if (perf_cpu_map__has_any_cpu_or_is_empty(map))
2324                         continue;
2325
2326                 perf_cpu_map__for_each_cpu(cpu, idx, map) {
2327                         __set_bit(cpu.cpu, set);
2328
2329                         if (WARN_ONCE(cpu2node[cpu.cpu] != -1, "node/cpu topology bug"))
2330                                 return -EINVAL;
2331
2332                         cpu2node[cpu.cpu] = node;
2333                 }
2334         }
2335
2336         setup_nodes_header();
2337         return 0;
2338 }
2339
2340 #define HAS_HITMS(__h) ((__h)->stats.lcl_hitm || (__h)->stats.rmt_hitm)
2341 #define HAS_PEER(__h) ((__h)->stats.lcl_peer || (__h)->stats.rmt_peer)
2342
2343 static int resort_shared_cl_cb(struct hist_entry *he, void *arg __maybe_unused)
2344 {
2345         struct c2c_hist_entry *c2c_he;
2346         c2c_he = container_of(he, struct c2c_hist_entry, he);
2347
2348         if (HAS_HITMS(c2c_he) || HAS_PEER(c2c_he)) {
2349                 c2c.shared_clines++;
2350                 c2c_add_stats(&c2c.shared_clines_stats, &c2c_he->stats);
2351         }
2352
2353         return 0;
2354 }
2355
2356 static int hists__iterate_cb(struct hists *hists, hists__resort_cb_t cb)
2357 {
2358         struct rb_node *next = rb_first_cached(&hists->entries);
2359         int ret = 0;
2360
2361         while (next) {
2362                 struct hist_entry *he;
2363
2364                 he = rb_entry(next, struct hist_entry, rb_node);
2365                 ret = cb(he, NULL);
2366                 if (ret)
2367                         break;
2368                 next = rb_next(&he->rb_node);
2369         }
2370
2371         return ret;
2372 }
2373
2374 static void print_c2c__display_stats(FILE *out)
2375 {
2376         int llc_misses;
2377         struct c2c_stats *stats = &c2c.hists.stats;
2378
2379         llc_misses = get_load_llc_misses(stats);
2380
2381         fprintf(out, "=================================================\n");
2382         fprintf(out, "            Trace Event Information              \n");
2383         fprintf(out, "=================================================\n");
2384         fprintf(out, "  Total records                     : %10d\n", stats->nr_entries);
2385         fprintf(out, "  Locked Load/Store Operations      : %10d\n", stats->locks);
2386         fprintf(out, "  Load Operations                   : %10d\n", stats->load);
2387         fprintf(out, "  Loads - uncacheable               : %10d\n", stats->ld_uncache);
2388         fprintf(out, "  Loads - IO                        : %10d\n", stats->ld_io);
2389         fprintf(out, "  Loads - Miss                      : %10d\n", stats->ld_miss);
2390         fprintf(out, "  Loads - no mapping                : %10d\n", stats->ld_noadrs);
2391         fprintf(out, "  Load Fill Buffer Hit              : %10d\n", stats->ld_fbhit);
2392         fprintf(out, "  Load L1D hit                      : %10d\n", stats->ld_l1hit);
2393         fprintf(out, "  Load L2D hit                      : %10d\n", stats->ld_l2hit);
2394         fprintf(out, "  Load LLC hit                      : %10d\n", stats->ld_llchit + stats->lcl_hitm);
2395         fprintf(out, "  Load Local HITM                   : %10d\n", stats->lcl_hitm);
2396         fprintf(out, "  Load Remote HITM                  : %10d\n", stats->rmt_hitm);
2397         fprintf(out, "  Load Remote HIT                   : %10d\n", stats->rmt_hit);
2398         fprintf(out, "  Load Local DRAM                   : %10d\n", stats->lcl_dram);
2399         fprintf(out, "  Load Remote DRAM                  : %10d\n", stats->rmt_dram);
2400         fprintf(out, "  Load MESI State Exclusive         : %10d\n", stats->ld_excl);
2401         fprintf(out, "  Load MESI State Shared            : %10d\n", stats->ld_shared);
2402         fprintf(out, "  Load LLC Misses                   : %10d\n", llc_misses);
2403         fprintf(out, "  Load access blocked by data       : %10d\n", stats->blk_data);
2404         fprintf(out, "  Load access blocked by address    : %10d\n", stats->blk_addr);
2405         fprintf(out, "  Load HIT Local Peer               : %10d\n", stats->lcl_peer);
2406         fprintf(out, "  Load HIT Remote Peer              : %10d\n", stats->rmt_peer);
2407         fprintf(out, "  LLC Misses to Local DRAM          : %10.1f%%\n", ((double)stats->lcl_dram/(double)llc_misses) * 100.);
2408         fprintf(out, "  LLC Misses to Remote DRAM         : %10.1f%%\n", ((double)stats->rmt_dram/(double)llc_misses) * 100.);
2409         fprintf(out, "  LLC Misses to Remote cache (HIT)  : %10.1f%%\n", ((double)stats->rmt_hit /(double)llc_misses) * 100.);
2410         fprintf(out, "  LLC Misses to Remote cache (HITM) : %10.1f%%\n", ((double)stats->rmt_hitm/(double)llc_misses) * 100.);
2411         fprintf(out, "  Store Operations                  : %10d\n", stats->store);
2412         fprintf(out, "  Store - uncacheable               : %10d\n", stats->st_uncache);
2413         fprintf(out, "  Store - no mapping                : %10d\n", stats->st_noadrs);
2414         fprintf(out, "  Store L1D Hit                     : %10d\n", stats->st_l1hit);
2415         fprintf(out, "  Store L1D Miss                    : %10d\n", stats->st_l1miss);
2416         fprintf(out, "  Store No available memory level   : %10d\n", stats->st_na);
2417         fprintf(out, "  No Page Map Rejects               : %10d\n", stats->nomap);
2418         fprintf(out, "  Unable to parse data source       : %10d\n", stats->noparse);
2419 }
2420
2421 static void print_shared_cacheline_info(FILE *out)
2422 {
2423         struct c2c_stats *stats = &c2c.shared_clines_stats;
2424         int hitm_cnt = stats->lcl_hitm + stats->rmt_hitm;
2425
2426         fprintf(out, "=================================================\n");
2427         fprintf(out, "    Global Shared Cache Line Event Information   \n");
2428         fprintf(out, "=================================================\n");
2429         fprintf(out, "  Total Shared Cache Lines          : %10d\n", c2c.shared_clines);
2430         fprintf(out, "  Load HITs on shared lines         : %10d\n", stats->load);
2431         fprintf(out, "  Fill Buffer Hits on shared lines  : %10d\n", stats->ld_fbhit);
2432         fprintf(out, "  L1D hits on shared lines          : %10d\n", stats->ld_l1hit);
2433         fprintf(out, "  L2D hits on shared lines          : %10d\n", stats->ld_l2hit);
2434         fprintf(out, "  LLC hits on shared lines          : %10d\n", stats->ld_llchit + stats->lcl_hitm);
2435         fprintf(out, "  Load hits on peer cache or nodes  : %10d\n", stats->lcl_peer + stats->rmt_peer);
2436         fprintf(out, "  Locked Access on shared lines     : %10d\n", stats->locks);
2437         fprintf(out, "  Blocked Access on shared lines    : %10d\n", stats->blk_data + stats->blk_addr);
2438         fprintf(out, "  Store HITs on shared lines        : %10d\n", stats->store);
2439         fprintf(out, "  Store L1D hits on shared lines    : %10d\n", stats->st_l1hit);
2440         fprintf(out, "  Store No available memory level   : %10d\n", stats->st_na);
2441         fprintf(out, "  Total Merged records              : %10d\n", hitm_cnt + stats->store);
2442 }
2443
2444 static void print_cacheline(struct c2c_hists *c2c_hists,
2445                             struct hist_entry *he_cl,
2446                             struct perf_hpp_list *hpp_list,
2447                             FILE *out)
2448 {
2449         char bf[1000];
2450         struct perf_hpp hpp = {
2451                 .buf            = bf,
2452                 .size           = 1000,
2453         };
2454         static bool once;
2455
2456         if (!once) {
2457                 hists__fprintf_headers(&c2c_hists->hists, out);
2458                 once = true;
2459         } else {
2460                 fprintf(out, "\n");
2461         }
2462
2463         fprintf(out, "  ----------------------------------------------------------------------\n");
2464         __hist_entry__snprintf(he_cl, &hpp, hpp_list);
2465         fprintf(out, "%s\n", bf);
2466         fprintf(out, "  ----------------------------------------------------------------------\n");
2467
2468         hists__fprintf(&c2c_hists->hists, false, 0, 0, 0, out, false);
2469 }
2470
2471 static void print_pareto(FILE *out)
2472 {
2473         struct perf_hpp_list hpp_list;
2474         struct rb_node *nd;
2475         int ret;
2476         const char *cl_output;
2477
2478         if (c2c.display != DISPLAY_SNP_PEER)
2479                 cl_output = "cl_num,"
2480                             "cl_rmt_hitm,"
2481                             "cl_lcl_hitm,"
2482                             "cl_stores_l1hit,"
2483                             "cl_stores_l1miss,"
2484                             "cl_stores_na,"
2485                             "dcacheline";
2486         else
2487                 cl_output = "cl_num,"
2488                             "cl_rmt_peer,"
2489                             "cl_lcl_peer,"
2490                             "cl_stores_l1hit,"
2491                             "cl_stores_l1miss,"
2492                             "cl_stores_na,"
2493                             "dcacheline";
2494
2495         perf_hpp_list__init(&hpp_list);
2496         ret = hpp_list__parse(&hpp_list, cl_output, NULL);
2497
2498         if (WARN_ONCE(ret, "failed to setup sort entries\n"))
2499                 return;
2500
2501         nd = rb_first_cached(&c2c.hists.hists.entries);
2502
2503         for (; nd; nd = rb_next(nd)) {
2504                 struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
2505                 struct c2c_hist_entry *c2c_he;
2506
2507                 if (he->filtered)
2508                         continue;
2509
2510                 c2c_he = container_of(he, struct c2c_hist_entry, he);
2511                 print_cacheline(c2c_he->hists, he, &hpp_list, out);
2512         }
2513 }
2514
2515 static void print_c2c_info(FILE *out, struct perf_session *session)
2516 {
2517         struct evlist *evlist = session->evlist;
2518         struct evsel *evsel;
2519         bool first = true;
2520
2521         fprintf(out, "=================================================\n");
2522         fprintf(out, "                 c2c details                     \n");
2523         fprintf(out, "=================================================\n");
2524
2525         evlist__for_each_entry(evlist, evsel) {
2526                 fprintf(out, "%-36s: %s\n", first ? "  Events" : "", evsel__name(evsel));
2527                 first = false;
2528         }
2529         fprintf(out, "  Cachelines sort on                : %s\n",
2530                 display_str[c2c.display]);
2531         fprintf(out, "  Cacheline data grouping           : %s\n", c2c.cl_sort);
2532 }
2533
2534 static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session)
2535 {
2536         setup_pager();
2537
2538         print_c2c__display_stats(out);
2539         fprintf(out, "\n");
2540         print_shared_cacheline_info(out);
2541         fprintf(out, "\n");
2542         print_c2c_info(out, session);
2543
2544         if (c2c.stats_only)
2545                 return;
2546
2547         fprintf(out, "\n");
2548         fprintf(out, "=================================================\n");
2549         fprintf(out, "           Shared Data Cache Line Table          \n");
2550         fprintf(out, "=================================================\n");
2551         fprintf(out, "#\n");
2552
2553         hists__fprintf(&c2c.hists.hists, true, 0, 0, 0, stdout, true);
2554
2555         fprintf(out, "\n");
2556         fprintf(out, "=================================================\n");
2557         fprintf(out, "      Shared Cache Line Distribution Pareto      \n");
2558         fprintf(out, "=================================================\n");
2559         fprintf(out, "#\n");
2560
2561         print_pareto(out);
2562 }
2563
2564 #ifdef HAVE_SLANG_SUPPORT
2565 static void c2c_browser__update_nr_entries(struct hist_browser *hb)
2566 {
2567         u64 nr_entries = 0;
2568         struct rb_node *nd = rb_first_cached(&hb->hists->entries);
2569
2570         while (nd) {
2571                 struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
2572
2573                 if (!he->filtered)
2574                         nr_entries++;
2575
2576                 nd = rb_next(nd);
2577         }
2578
2579         hb->nr_non_filtered_entries = nr_entries;
2580 }
2581
2582 struct c2c_cacheline_browser {
2583         struct hist_browser      hb;
2584         struct hist_entry       *he;
2585 };
2586
2587 static int
2588 perf_c2c_cacheline_browser__title(struct hist_browser *browser,
2589                                   char *bf, size_t size)
2590 {
2591         struct c2c_cacheline_browser *cl_browser;
2592         struct hist_entry *he;
2593         uint64_t addr = 0;
2594
2595         cl_browser = container_of(browser, struct c2c_cacheline_browser, hb);
2596         he = cl_browser->he;
2597
2598         if (he->mem_info)
2599                 addr = cl_address(he->mem_info->daddr.addr, chk_double_cl);
2600
2601         scnprintf(bf, size, "Cacheline 0x%lx", addr);
2602         return 0;
2603 }
2604
2605 static struct c2c_cacheline_browser*
2606 c2c_cacheline_browser__new(struct hists *hists, struct hist_entry *he)
2607 {
2608         struct c2c_cacheline_browser *browser;
2609
2610         browser = zalloc(sizeof(*browser));
2611         if (browser) {
2612                 hist_browser__init(&browser->hb, hists);
2613                 browser->hb.c2c_filter  = true;
2614                 browser->hb.title       = perf_c2c_cacheline_browser__title;
2615                 browser->he             = he;
2616         }
2617
2618         return browser;
2619 }
2620
2621 static int perf_c2c__browse_cacheline(struct hist_entry *he)
2622 {
2623         struct c2c_hist_entry *c2c_he;
2624         struct c2c_hists *c2c_hists;
2625         struct c2c_cacheline_browser *cl_browser;
2626         struct hist_browser *browser;
2627         int key = -1;
2628         static const char help[] =
2629         " ENTER         Toggle callchains (if present) \n"
2630         " n             Toggle Node details info \n"
2631         " s             Toggle full length of symbol and source line columns \n"
2632         " q             Return back to cacheline list \n";
2633
2634         if (!he)
2635                 return 0;
2636
2637         /* Display compact version first. */
2638         c2c.symbol_full = false;
2639
2640         c2c_he = container_of(he, struct c2c_hist_entry, he);
2641         c2c_hists = c2c_he->hists;
2642
2643         cl_browser = c2c_cacheline_browser__new(&c2c_hists->hists, he);
2644         if (cl_browser == NULL)
2645                 return -1;
2646
2647         browser = &cl_browser->hb;
2648
2649         /* reset abort key so that it can get Ctrl-C as a key */
2650         SLang_reset_tty();
2651         SLang_init_tty(0, 0, 0);
2652
2653         c2c_browser__update_nr_entries(browser);
2654
2655         while (1) {
2656                 key = hist_browser__run(browser, "? - help", true, 0);
2657
2658                 switch (key) {
2659                 case 's':
2660                         c2c.symbol_full = !c2c.symbol_full;
2661                         break;
2662                 case 'n':
2663                         c2c.node_info = (c2c.node_info + 1) % 3;
2664                         setup_nodes_header();
2665                         break;
2666                 case 'q':
2667                         goto out;
2668                 case '?':
2669                         ui_browser__help_window(&browser->b, help);
2670                         break;
2671                 default:
2672                         break;
2673                 }
2674         }
2675
2676 out:
2677         free(cl_browser);
2678         return 0;
2679 }
2680
2681 static int perf_c2c_browser__title(struct hist_browser *browser,
2682                                    char *bf, size_t size)
2683 {
2684         scnprintf(bf, size,
2685                   "Shared Data Cache Line Table     "
2686                   "(%lu entries, sorted on %s)",
2687                   browser->nr_non_filtered_entries,
2688                   display_str[c2c.display]);
2689         return 0;
2690 }
2691
2692 static struct hist_browser*
2693 perf_c2c_browser__new(struct hists *hists)
2694 {
2695         struct hist_browser *browser = hist_browser__new(hists);
2696
2697         if (browser) {
2698                 browser->title = perf_c2c_browser__title;
2699                 browser->c2c_filter = true;
2700         }
2701
2702         return browser;
2703 }
2704
2705 static int perf_c2c__hists_browse(struct hists *hists)
2706 {
2707         struct hist_browser *browser;
2708         int key = -1;
2709         static const char help[] =
2710         " d             Display cacheline details \n"
2711         " ENTER         Toggle callchains (if present) \n"
2712         " q             Quit \n";
2713
2714         browser = perf_c2c_browser__new(hists);
2715         if (browser == NULL)
2716                 return -1;
2717
2718         /* reset abort key so that it can get Ctrl-C as a key */
2719         SLang_reset_tty();
2720         SLang_init_tty(0, 0, 0);
2721
2722         c2c_browser__update_nr_entries(browser);
2723
2724         while (1) {
2725                 key = hist_browser__run(browser, "? - help", true, 0);
2726
2727                 switch (key) {
2728                 case 'q':
2729                         goto out;
2730                 case 'd':
2731                         perf_c2c__browse_cacheline(browser->he_selection);
2732                         break;
2733                 case '?':
2734                         ui_browser__help_window(&browser->b, help);
2735                         break;
2736                 default:
2737                         break;
2738                 }
2739         }
2740
2741 out:
2742         hist_browser__delete(browser);
2743         return 0;
2744 }
2745
2746 static void perf_c2c_display(struct perf_session *session)
2747 {
2748         if (use_browser == 0)
2749                 perf_c2c__hists_fprintf(stdout, session);
2750         else
2751                 perf_c2c__hists_browse(&c2c.hists.hists);
2752 }
2753 #else
2754 static void perf_c2c_display(struct perf_session *session)
2755 {
2756         use_browser = 0;
2757         perf_c2c__hists_fprintf(stdout, session);
2758 }
2759 #endif /* HAVE_SLANG_SUPPORT */
2760
2761 static char *fill_line(const char *orig, int len)
2762 {
2763         int i, j, olen = strlen(orig);
2764         char *buf;
2765
2766         buf = zalloc(len + 1);
2767         if (!buf)
2768                 return NULL;
2769
2770         j = len / 2 - olen / 2;
2771
2772         for (i = 0; i < j - 1; i++)
2773                 buf[i] = '-';
2774
2775         buf[i++] = ' ';
2776
2777         strcpy(buf + i, orig);
2778
2779         i += olen;
2780
2781         buf[i++] = ' ';
2782
2783         for (; i < len; i++)
2784                 buf[i] = '-';
2785
2786         return buf;
2787 }
2788
2789 static int ui_quirks(void)
2790 {
2791         const char *nodestr = "Data address";
2792         char *buf;
2793
2794         if (!c2c.use_stdio) {
2795                 dim_offset.width  = 5;
2796                 dim_offset.header = header_offset_tui;
2797                 nodestr = chk_double_cl ? "Double-CL" : "CL";
2798         }
2799
2800         dim_percent_costly_snoop.header = percent_costly_snoop_header[c2c.display];
2801
2802         /* Fix the zero line for dcacheline column. */
2803         buf = fill_line(chk_double_cl ? "Double-Cacheline" : "Cacheline",
2804                                 dim_dcacheline.width +
2805                                 dim_dcacheline_node.width +
2806                                 dim_dcacheline_count.width + 4);
2807         if (!buf)
2808                 return -ENOMEM;
2809
2810         dim_dcacheline.header.line[0].text = buf;
2811
2812         /* Fix the zero line for offset column. */
2813         buf = fill_line(nodestr, dim_offset.width +
2814                                  dim_offset_node.width +
2815                                  dim_dcacheline_count.width + 4);
2816         if (!buf)
2817                 return -ENOMEM;
2818
2819         dim_offset.header.line[0].text = buf;
2820
2821         return 0;
2822 }
2823
2824 #define CALLCHAIN_DEFAULT_OPT  "graph,0.5,caller,function,percent"
2825
2826 const char callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
2827                                 CALLCHAIN_REPORT_HELP
2828                                 "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
2829
2830 static int
2831 parse_callchain_opt(const struct option *opt, const char *arg, int unset)
2832 {
2833         struct callchain_param *callchain = opt->value;
2834
2835         callchain->enabled = !unset;
2836         /*
2837          * --no-call-graph
2838          */
2839         if (unset) {
2840                 symbol_conf.use_callchain = false;
2841                 callchain->mode = CHAIN_NONE;
2842                 return 0;
2843         }
2844
2845         return parse_callchain_report_opt(arg);
2846 }
2847
2848 static int setup_callchain(struct evlist *evlist)
2849 {
2850         u64 sample_type = evlist__combined_sample_type(evlist);
2851         enum perf_call_graph_mode mode = CALLCHAIN_NONE;
2852
2853         if ((sample_type & PERF_SAMPLE_REGS_USER) &&
2854             (sample_type & PERF_SAMPLE_STACK_USER)) {
2855                 mode = CALLCHAIN_DWARF;
2856                 dwarf_callchain_users = true;
2857         } else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
2858                 mode = CALLCHAIN_LBR;
2859         else if (sample_type & PERF_SAMPLE_CALLCHAIN)
2860                 mode = CALLCHAIN_FP;
2861
2862         if (!callchain_param.enabled &&
2863             callchain_param.mode != CHAIN_NONE &&
2864             mode != CALLCHAIN_NONE) {
2865                 symbol_conf.use_callchain = true;
2866                 if (callchain_register_param(&callchain_param) < 0) {
2867                         ui__error("Can't register callchain params.\n");
2868                         return -EINVAL;
2869                 }
2870         }
2871
2872         if (c2c.stitch_lbr && (mode != CALLCHAIN_LBR)) {
2873                 ui__warning("Can't find LBR callchain. Switch off --stitch-lbr.\n"
2874                             "Please apply --call-graph lbr when recording.\n");
2875                 c2c.stitch_lbr = false;
2876         }
2877
2878         callchain_param.record_mode = mode;
2879         callchain_param.min_percent = 0;
2880         return 0;
2881 }
2882
2883 static int setup_display(const char *str)
2884 {
2885         const char *display = str;
2886
2887         if (!strcmp(display, "tot"))
2888                 c2c.display = DISPLAY_TOT_HITM;
2889         else if (!strcmp(display, "rmt"))
2890                 c2c.display = DISPLAY_RMT_HITM;
2891         else if (!strcmp(display, "lcl"))
2892                 c2c.display = DISPLAY_LCL_HITM;
2893         else if (!strcmp(display, "peer"))
2894                 c2c.display = DISPLAY_SNP_PEER;
2895         else {
2896                 pr_err("failed: unknown display type: %s\n", str);
2897                 return -1;
2898         }
2899
2900         return 0;
2901 }
2902
2903 #define for_each_token(__tok, __buf, __sep, __tmp)              \
2904         for (__tok = strtok_r(__buf, __sep, &__tmp); __tok;     \
2905              __tok = strtok_r(NULL,  __sep, &__tmp))
2906
2907 static int build_cl_output(char *cl_sort, bool no_source)
2908 {
2909         char *tok, *tmp, *buf = strdup(cl_sort);
2910         bool add_pid   = false;
2911         bool add_tid   = false;
2912         bool add_iaddr = false;
2913         bool add_sym   = false;
2914         bool add_dso   = false;
2915         bool add_src   = false;
2916         int ret = 0;
2917
2918         if (!buf)
2919                 return -ENOMEM;
2920
2921         for_each_token(tok, buf, ",", tmp) {
2922                 if (!strcmp(tok, "tid")) {
2923                         add_tid = true;
2924                 } else if (!strcmp(tok, "pid")) {
2925                         add_pid = true;
2926                 } else if (!strcmp(tok, "iaddr")) {
2927                         add_iaddr = true;
2928                         add_sym   = true;
2929                         add_dso   = true;
2930                         add_src   = no_source ? false : true;
2931                 } else if (!strcmp(tok, "dso")) {
2932                         add_dso = true;
2933                 } else if (strcmp(tok, "offset")) {
2934                         pr_err("unrecognized sort token: %s\n", tok);
2935                         ret = -EINVAL;
2936                         goto err;
2937                 }
2938         }
2939
2940         if (asprintf(&c2c.cl_output,
2941                 "%s%s%s%s%s%s%s%s%s%s%s%s",
2942                 c2c.use_stdio ? "cl_num_empty," : "",
2943                 c2c.display == DISPLAY_SNP_PEER ? "percent_rmt_peer,"
2944                                                   "percent_lcl_peer," :
2945                                                   "percent_rmt_hitm,"
2946                                                   "percent_lcl_hitm,",
2947                 "percent_stores_l1hit,"
2948                 "percent_stores_l1miss,"
2949                 "percent_stores_na,"
2950                 "offset,offset_node,dcacheline_count,",
2951                 add_pid   ? "pid," : "",
2952                 add_tid   ? "tid," : "",
2953                 add_iaddr ? "iaddr," : "",
2954                 c2c.display == DISPLAY_SNP_PEER ? "mean_rmt_peer,"
2955                                                   "mean_lcl_peer," :
2956                                                   "mean_rmt,"
2957                                                   "mean_lcl,",
2958                 "mean_load,"
2959                 "tot_recs,"
2960                 "cpucnt,",
2961                 add_sym ? "symbol," : "",
2962                 add_dso ? "dso," : "",
2963                 add_src ? "cl_srcline," : "",
2964                 "node") < 0) {
2965                 ret = -ENOMEM;
2966                 goto err;
2967         }
2968
2969         c2c.show_src = add_src;
2970 err:
2971         free(buf);
2972         return ret;
2973 }
2974
2975 static int setup_coalesce(const char *coalesce, bool no_source)
2976 {
2977         const char *c = coalesce ?: coalesce_default;
2978         const char *sort_str = NULL;
2979
2980         if (asprintf(&c2c.cl_sort, "offset,%s", c) < 0)
2981                 return -ENOMEM;
2982
2983         if (build_cl_output(c2c.cl_sort, no_source))
2984                 return -1;
2985
2986         if (c2c.display == DISPLAY_TOT_HITM)
2987                 sort_str = "tot_hitm";
2988         else if (c2c.display == DISPLAY_RMT_HITM)
2989                 sort_str = "rmt_hitm,lcl_hitm";
2990         else if (c2c.display == DISPLAY_LCL_HITM)
2991                 sort_str = "lcl_hitm,rmt_hitm";
2992         else if (c2c.display == DISPLAY_SNP_PEER)
2993                 sort_str = "tot_peer";
2994
2995         if (asprintf(&c2c.cl_resort, "offset,%s", sort_str) < 0)
2996                 return -ENOMEM;
2997
2998         pr_debug("coalesce sort   fields: %s\n", c2c.cl_sort);
2999         pr_debug("coalesce resort fields: %s\n", c2c.cl_resort);
3000         pr_debug("coalesce output fields: %s\n", c2c.cl_output);
3001         return 0;
3002 }
3003
3004 static int perf_c2c__report(int argc, const char **argv)
3005 {
3006         struct itrace_synth_opts itrace_synth_opts = {
3007                 .set = true,
3008                 .mem = true,    /* Only enable memory event */
3009                 .default_no_sample = true,
3010         };
3011
3012         struct perf_session *session;
3013         struct ui_progress prog;
3014         struct perf_data data = {
3015                 .mode = PERF_DATA_MODE_READ,
3016         };
3017         char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
3018         const char *display = NULL;
3019         const char *coalesce = NULL;
3020         bool no_source = false;
3021         const struct option options[] = {
3022         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
3023                    "file", "vmlinux pathname"),
3024         OPT_STRING('i', "input", &input_name, "file",
3025                    "the input file to process"),
3026         OPT_INCR('N', "node-info", &c2c.node_info,
3027                  "show extra node info in report (repeat for more info)"),
3028         OPT_BOOLEAN(0, "stdio", &c2c.use_stdio, "Use the stdio interface"),
3029         OPT_BOOLEAN(0, "stats", &c2c.stats_only,
3030                     "Display only statistic tables (implies --stdio)"),
3031         OPT_BOOLEAN(0, "full-symbols", &c2c.symbol_full,
3032                     "Display full length of symbols"),
3033         OPT_BOOLEAN(0, "no-source", &no_source,
3034                     "Do not display Source Line column"),
3035         OPT_BOOLEAN(0, "show-all", &c2c.show_all,
3036                     "Show all captured HITM lines."),
3037         OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
3038                              "print_type,threshold[,print_limit],order,sort_key[,branch],value",
3039                              callchain_help, &parse_callchain_opt,
3040                              callchain_default_opt),
3041         OPT_STRING('d', "display", &display, "Switch HITM output type", "tot,lcl,rmt,peer"),
3042         OPT_STRING('c', "coalesce", &coalesce, "coalesce fields",
3043                    "coalesce fields: pid,tid,iaddr,dso"),
3044         OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
3045         OPT_BOOLEAN(0, "stitch-lbr", &c2c.stitch_lbr,
3046                     "Enable LBR callgraph stitching approach"),
3047         OPT_BOOLEAN(0, "double-cl", &chk_double_cl, "Detect adjacent cacheline false sharing"),
3048         OPT_PARENT(c2c_options),
3049         OPT_END()
3050         };
3051         int err = 0;
3052         const char *output_str, *sort_str = NULL;
3053
3054         argc = parse_options(argc, argv, options, report_c2c_usage,
3055                              PARSE_OPT_STOP_AT_NON_OPTION);
3056         if (argc)
3057                 usage_with_options(report_c2c_usage, options);
3058
3059 #ifndef HAVE_SLANG_SUPPORT
3060         c2c.use_stdio = true;
3061 #endif
3062
3063         if (c2c.stats_only)
3064                 c2c.use_stdio = true;
3065
3066         err = symbol__validate_sym_arguments();
3067         if (err)
3068                 goto out;
3069
3070         if (!input_name || !strlen(input_name))
3071                 input_name = "perf.data";
3072
3073         data.path  = input_name;
3074         data.force = symbol_conf.force;
3075
3076         session = perf_session__new(&data, &c2c.tool);
3077         if (IS_ERR(session)) {
3078                 err = PTR_ERR(session);
3079                 pr_debug("Error creating perf session\n");
3080                 goto out;
3081         }
3082
3083         /*
3084          * Use the 'tot' as default display type if user doesn't specify it;
3085          * since Arm64 platform doesn't support HITMs flag, use 'peer' as the
3086          * default display type.
3087          */
3088         if (!display) {
3089                 if (!strcmp(perf_env__arch(&session->header.env), "arm64"))
3090                         display = "peer";
3091                 else
3092                         display = "tot";
3093         }
3094
3095         err = setup_display(display);
3096         if (err)
3097                 goto out_session;
3098
3099         err = setup_coalesce(coalesce, no_source);
3100         if (err) {
3101                 pr_debug("Failed to initialize hists\n");
3102                 goto out_session;
3103         }
3104
3105         err = c2c_hists__init(&c2c.hists, "dcacheline", 2);
3106         if (err) {
3107                 pr_debug("Failed to initialize hists\n");
3108                 goto out_session;
3109         }
3110
3111         session->itrace_synth_opts = &itrace_synth_opts;
3112
3113         err = setup_nodes(session);
3114         if (err) {
3115                 pr_err("Failed setup nodes\n");
3116                 goto out_session;
3117         }
3118
3119         err = mem2node__init(&c2c.mem2node, &session->header.env);
3120         if (err)
3121                 goto out_session;
3122
3123         err = setup_callchain(session->evlist);
3124         if (err)
3125                 goto out_mem2node;
3126
3127         if (symbol__init(&session->header.env) < 0)
3128                 goto out_mem2node;
3129
3130         /* No pipe support at the moment. */
3131         if (perf_data__is_pipe(session->data)) {
3132                 pr_debug("No pipe support at the moment.\n");
3133                 goto out_mem2node;
3134         }
3135
3136         if (c2c.use_stdio)
3137                 use_browser = 0;
3138         else
3139                 use_browser = 1;
3140
3141         setup_browser(false);
3142
3143         err = perf_session__process_events(session);
3144         if (err) {
3145                 pr_err("failed to process sample\n");
3146                 goto out_mem2node;
3147         }
3148
3149         if (c2c.display != DISPLAY_SNP_PEER)
3150                 output_str = "cl_idx,"
3151                              "dcacheline,"
3152                              "dcacheline_node,"
3153                              "dcacheline_count,"
3154                              "percent_costly_snoop,"
3155                              "tot_hitm,lcl_hitm,rmt_hitm,"
3156                              "tot_recs,"
3157                              "tot_loads,"
3158                              "tot_stores,"
3159                              "stores_l1hit,stores_l1miss,stores_na,"
3160                              "ld_fbhit,ld_l1hit,ld_l2hit,"
3161                              "ld_lclhit,lcl_hitm,"
3162                              "ld_rmthit,rmt_hitm,"
3163                              "dram_lcl,dram_rmt";
3164         else
3165                 output_str = "cl_idx,"
3166                              "dcacheline,"
3167                              "dcacheline_node,"
3168                              "dcacheline_count,"
3169                              "percent_costly_snoop,"
3170                              "tot_peer,lcl_peer,rmt_peer,"
3171                              "tot_recs,"
3172                              "tot_loads,"
3173                              "tot_stores,"
3174                              "stores_l1hit,stores_l1miss,stores_na,"
3175                              "ld_fbhit,ld_l1hit,ld_l2hit,"
3176                              "ld_lclhit,lcl_hitm,"
3177                              "ld_rmthit,rmt_hitm,"
3178                              "dram_lcl,dram_rmt";
3179
3180         if (c2c.display == DISPLAY_TOT_HITM)
3181                 sort_str = "tot_hitm";
3182         else if (c2c.display == DISPLAY_RMT_HITM)
3183                 sort_str = "rmt_hitm";
3184         else if (c2c.display == DISPLAY_LCL_HITM)
3185                 sort_str = "lcl_hitm";
3186         else if (c2c.display == DISPLAY_SNP_PEER)
3187                 sort_str = "tot_peer";
3188
3189         c2c_hists__reinit(&c2c.hists, output_str, sort_str);
3190
3191         ui_progress__init(&prog, c2c.hists.hists.nr_entries, "Sorting...");
3192
3193         hists__collapse_resort(&c2c.hists.hists, NULL);
3194         hists__output_resort_cb(&c2c.hists.hists, &prog, resort_shared_cl_cb);
3195         hists__iterate_cb(&c2c.hists.hists, resort_cl_cb);
3196
3197         ui_progress__finish();
3198
3199         if (ui_quirks()) {
3200                 pr_err("failed to setup UI\n");
3201                 goto out_mem2node;
3202         }
3203
3204         perf_c2c_display(session);
3205
3206 out_mem2node:
3207         mem2node__exit(&c2c.mem2node);
3208 out_session:
3209         perf_session__delete(session);
3210 out:
3211         return err;
3212 }
3213
3214 static int parse_record_events(const struct option *opt,
3215                                const char *str, int unset __maybe_unused)
3216 {
3217         bool *event_set = (bool *) opt->value;
3218         struct perf_pmu *pmu;
3219
3220         pmu = perf_mem_events_find_pmu();
3221         if (!pmu) {
3222                 pr_err("failed: there is no PMU that supports perf c2c\n");
3223                 exit(-1);
3224         }
3225
3226         if (!strcmp(str, "list")) {
3227                 perf_pmu__mem_events_list(pmu);
3228                 exit(0);
3229         }
3230         if (perf_pmu__mem_events_parse(pmu, str))
3231                 exit(-1);
3232
3233         *event_set = true;
3234         return 0;
3235 }
3236
3237
3238 static const char * const __usage_record[] = {
3239         "perf c2c record [<options>] [<command>]",
3240         "perf c2c record [<options>] -- <command> [<options>]",
3241         NULL
3242 };
3243
3244 static const char * const *record_mem_usage = __usage_record;
3245
3246 static int perf_c2c__record(int argc, const char **argv)
3247 {
3248         int rec_argc, i = 0, j;
3249         const char **rec_argv;
3250         int ret;
3251         bool all_user = false, all_kernel = false;
3252         bool event_set = false;
3253         struct perf_mem_event *e;
3254         struct perf_pmu *pmu;
3255         struct option options[] = {
3256         OPT_CALLBACK('e', "event", &event_set, "event",
3257                      "event selector. Use 'perf c2c record -e list' to list available events",
3258                      parse_record_events),
3259         OPT_BOOLEAN('u', "all-user", &all_user, "collect only user level data"),
3260         OPT_BOOLEAN('k', "all-kernel", &all_kernel, "collect only kernel level data"),
3261         OPT_UINTEGER('l', "ldlat", &perf_mem_events__loads_ldlat, "setup mem-loads latency"),
3262         OPT_PARENT(c2c_options),
3263         OPT_END()
3264         };
3265
3266         pmu = perf_mem_events_find_pmu();
3267         if (!pmu) {
3268                 pr_err("failed: no PMU supports the memory events\n");
3269                 return -1;
3270         }
3271
3272         if (perf_pmu__mem_events_init(pmu)) {
3273                 pr_err("failed: memory events not supported\n");
3274                 return -1;
3275         }
3276
3277         argc = parse_options(argc, argv, options, record_mem_usage,
3278                              PARSE_OPT_KEEP_UNKNOWN);
3279
3280         /* Max number of arguments multiplied by number of PMUs that can support them. */
3281         rec_argc = argc + 11 * (perf_pmu__mem_events_num_mem_pmus(pmu) + 1);
3282
3283         rec_argv = calloc(rec_argc + 1, sizeof(char *));
3284         if (!rec_argv)
3285                 return -1;
3286
3287         rec_argv[i++] = "record";
3288
3289         if (!event_set) {
3290                 e = perf_pmu__mem_events_ptr(pmu, PERF_MEM_EVENTS__LOAD_STORE);
3291                 /*
3292                  * The load and store operations are required, use the event
3293                  * PERF_MEM_EVENTS__LOAD_STORE if it is supported.
3294                  */
3295                 if (e->tag) {
3296                         e->record = true;
3297                         rec_argv[i++] = "-W";
3298                 } else {
3299                         e = perf_pmu__mem_events_ptr(pmu, PERF_MEM_EVENTS__LOAD);
3300                         e->record = true;
3301
3302                         e = perf_pmu__mem_events_ptr(pmu, PERF_MEM_EVENTS__STORE);
3303                         e->record = true;
3304                 }
3305         }
3306
3307         e = perf_pmu__mem_events_ptr(pmu, PERF_MEM_EVENTS__LOAD);
3308         if (e->record)
3309                 rec_argv[i++] = "-W";
3310
3311         rec_argv[i++] = "-d";
3312         rec_argv[i++] = "--phys-data";
3313         rec_argv[i++] = "--sample-cpu";
3314
3315         ret = perf_mem_events__record_args(rec_argv, &i);
3316         if (ret)
3317                 goto out;
3318
3319         if (all_user)
3320                 rec_argv[i++] = "--all-user";
3321
3322         if (all_kernel)
3323                 rec_argv[i++] = "--all-kernel";
3324
3325         for (j = 0; j < argc; j++, i++)
3326                 rec_argv[i] = argv[j];
3327
3328         if (verbose > 0) {
3329                 pr_debug("calling: ");
3330
3331                 j = 0;
3332
3333                 while (rec_argv[j]) {
3334                         pr_debug("%s ", rec_argv[j]);
3335                         j++;
3336                 }
3337                 pr_debug("\n");
3338         }
3339
3340         ret = cmd_record(i, rec_argv);
3341 out:
3342         free(rec_argv);
3343         return ret;
3344 }
3345
3346 int cmd_c2c(int argc, const char **argv)
3347 {
3348         argc = parse_options(argc, argv, c2c_options, c2c_usage,
3349                              PARSE_OPT_STOP_AT_NON_OPTION);
3350
3351         if (!argc)
3352                 usage_with_options(c2c_usage, c2c_options);
3353
3354         if (strlen(argv[0]) > 2 && strstarts("record", argv[0])) {
3355                 return perf_c2c__record(argc, argv);
3356         } else if (strlen(argv[0]) > 2 && strstarts("report", argv[0])) {
3357                 return perf_c2c__report(argc, argv);
3358         } else {
3359                 usage_with_options(c2c_usage, c2c_options);
3360         }
3361
3362         return 0;
3363 }