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