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	Version: linux-6.0.1 spark-3.0.0 hadoop-3.2.0-src hadoop-3.3.0-src spark-2.4.7 linux-4.15.13 hadoop-2.7.4-src Revert   Change

 // SPDX-License-Identifier: GPL-2.0
 /*
  * This is rewrite of original c2c tool introduced in here:
  *   http://lwn.net/Articles/588866/
  *
  * The original tool was changed to fit in current perf state.
  *
  * Original authors:
  *   Don Zickus <dzickus@redhat.com>
  *   Dick Fowles <fowles@inreach.com>
  *   Joe Mario <jmario@redhat.com>
  */
 #include <errno.h>
 #include <inttypes.h>
 #include <linux/compiler.h>
 #include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/stringify.h>
 #include <linux/zalloc.h>
 #include <asm/bug.h>
 #include <sys/param.h>
 #include "debug.h"
 #include "builtin.h"
 #include <perf/cpumap.h>
 #include <subcmd/pager.h>
 #include <subcmd/parse-options.h>
 #include "map_symbol.h"
 #include "mem-events.h"
 #include "session.h"
 #include "hist.h"
 #include "sort.h"
 #include "tool.h"
 #include "cacheline.h"
 #include "data.h"
 #include "event.h"
 #include "evlist.h"
 #include "evsel.h"
 #include "ui/browsers/hists.h"
 #include "thread.h"
 #include "mem2node.h"
 #include "symbol.h"
 #include "ui/ui.h"
 #include "ui/progress.h"
 #include "../perf.h"
 #include "pmu.h"
 #include "pmu-hybrid.h"
 #include "string2.h"
 
 struct c2c_hists {
     struct hists        hists;
     struct perf_hpp_list    list;
     struct c2c_stats    stats;
 };
 
 struct compute_stats {
     struct stats         lcl_hitm;
     struct stats         rmt_hitm;
     struct stats         lcl_peer;
     struct stats         rmt_peer;
     struct stats         load;
 };
 
 struct c2c_hist_entry {
     struct c2c_hists    *hists;
     struct c2c_stats     stats;
     unsigned long       *cpuset;
     unsigned long       *nodeset;
     struct c2c_stats    *node_stats;
     unsigned int         cacheline_idx;
 
     struct compute_stats     cstats;
 
     unsigned long        paddr;
     unsigned long        paddr_cnt;
     bool             paddr_zero;
     char            *nodestr;
 
     /*
      * must be at the end,
      * because of its callchain dynamic entry
      */
     struct hist_entry   he;
 };
 
 static char const *coalesce_default = "iaddr";
 
 struct perf_c2c {
     struct perf_tool    tool;
     struct c2c_hists    hists;
     struct mem2node     mem2node;
 
     unsigned long       **nodes;
     int          nodes_cnt;
     int          cpus_cnt;
     int         *cpu2node;
     int          node_info;
 
     bool             show_src;
     bool             show_all;
     bool             use_stdio;
     bool             stats_only;
     bool             symbol_full;
     bool             stitch_lbr;
 
     /* Shared cache line stats */
     struct c2c_stats    shared_clines_stats;
     int         shared_clines;
 
     int          display;
 
     const char      *coalesce;
     char            *cl_sort;
     char            *cl_resort;
     char            *cl_output;
 };
 
 enum {
     DISPLAY_LCL_HITM,
     DISPLAY_RMT_HITM,
     DISPLAY_TOT_HITM,
     DISPLAY_SNP_PEER,
     DISPLAY_MAX,
 };
 
 static const char *display_str[DISPLAY_MAX] = {
     [DISPLAY_LCL_HITM] = "Local HITMs",
     [DISPLAY_RMT_HITM] = "Remote HITMs",
     [DISPLAY_TOT_HITM] = "Total HITMs",
     [DISPLAY_SNP_PEER] = "Peer Snoop",
 };
 
 static const struct option c2c_options[] = {
     OPT_INCR('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"),
     OPT_END()
 };
 
 static struct perf_c2c c2c;
 
 static void *c2c_he_zalloc(size_t size)
 {
     struct c2c_hist_entry *c2c_he;
 
     c2c_he = zalloc(size + sizeof(*c2c_he));
     if (!c2c_he)
         return NULL;
 
     c2c_he->cpuset = bitmap_zalloc(c2c.cpus_cnt);
     if (!c2c_he->cpuset)
         goto out_free;
 
     c2c_he->nodeset = bitmap_zalloc(c2c.nodes_cnt);
     if (!c2c_he->nodeset)
         goto out_free;
 
     c2c_he->node_stats = zalloc(c2c.nodes_cnt * sizeof(*c2c_he->node_stats));
     if (!c2c_he->node_stats)
         goto out_free;
 
     init_stats(&c2c_he->cstats.lcl_hitm);
     init_stats(&c2c_he->cstats.rmt_hitm);
     init_stats(&c2c_he->cstats.lcl_peer);
     init_stats(&c2c_he->cstats.rmt_peer);
     init_stats(&c2c_he->cstats.load);
 
     return &c2c_he->he;
 
 out_free:
     free(c2c_he->nodeset);
     free(c2c_he->cpuset);
     free(c2c_he);
     return NULL;
 }
 
 static void c2c_he_free(void *he)
 {
     struct c2c_hist_entry *c2c_he;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     if (c2c_he->hists) {
         hists__delete_entries(&c2c_he->hists->hists);
         free(c2c_he->hists);
     }
 
     free(c2c_he->cpuset);
     free(c2c_he->nodeset);
     free(c2c_he->nodestr);
     free(c2c_he->node_stats);
     free(c2c_he);
 }
 
 static struct hist_entry_ops c2c_entry_ops = {
     .new    = c2c_he_zalloc,
     .free   = c2c_he_free,
 };
 
 static int c2c_hists__init(struct c2c_hists *hists,
                const char *sort,
                int nr_header_lines);
 
 static struct c2c_hists*
 he__get_c2c_hists(struct hist_entry *he,
           const char *sort,
           int nr_header_lines)
 {
     struct c2c_hist_entry *c2c_he;
     struct c2c_hists *hists;
     int ret;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     if (c2c_he->hists)
         return c2c_he->hists;
 
     hists = c2c_he->hists = zalloc(sizeof(*hists));
     if (!hists)
         return NULL;
 
     ret = c2c_hists__init(hists, sort, nr_header_lines);
     if (ret) {
         free(hists);
         return NULL;
     }
 
     return hists;
 }
 
 static void c2c_he__set_cpu(struct c2c_hist_entry *c2c_he,
                 struct perf_sample *sample)
 {
     if (WARN_ONCE(sample->cpu == (unsigned int) -1,
               "WARNING: no sample cpu value"))
         return;
 
     set_bit(sample->cpu, c2c_he->cpuset);
 }
 
 static void c2c_he__set_node(struct c2c_hist_entry *c2c_he,
                  struct perf_sample *sample)
 {
     int node;
 
     if (!sample->phys_addr) {
         c2c_he->paddr_zero = true;
         return;
     }
 
     node = mem2node__node(&c2c.mem2node, sample->phys_addr);
     if (WARN_ONCE(node < 0, "WARNING: failed to find node\n"))
         return;
 
     set_bit(node, c2c_he->nodeset);
 
     if (c2c_he->paddr != sample->phys_addr) {
         c2c_he->paddr_cnt++;
         c2c_he->paddr = sample->phys_addr;
     }
 }
 
 static void compute_stats(struct c2c_hist_entry *c2c_he,
               struct c2c_stats *stats,
               u64 weight)
 {
     struct compute_stats *cstats = &c2c_he->cstats;
 
     if (stats->rmt_hitm)
         update_stats(&cstats->rmt_hitm, weight);
     else if (stats->lcl_hitm)
         update_stats(&cstats->lcl_hitm, weight);
     else if (stats->rmt_peer)
         update_stats(&cstats->rmt_peer, weight);
     else if (stats->lcl_peer)
         update_stats(&cstats->lcl_peer, weight);
     else if (stats->load)
         update_stats(&cstats->load, weight);
 }
 
 static int process_sample_event(struct perf_tool *tool __maybe_unused,
                 union perf_event *event,
                 struct perf_sample *sample,
                 struct evsel *evsel,
                 struct machine *machine)
 {
     struct c2c_hists *c2c_hists = &c2c.hists;
     struct c2c_hist_entry *c2c_he;
     struct c2c_stats stats = { .nr_entries = 0, };
     struct hist_entry *he;
     struct addr_location al;
     struct mem_info *mi, *mi_dup;
     int ret;
 
     if (machine__resolve(machine, &al, sample) < 0) {
         pr_debug("problem processing %d event, skipping it.\n",
              event->header.type);
         return -1;
     }
 
     if (c2c.stitch_lbr)
         al.thread->lbr_stitch_enable = true;
 
     ret = sample__resolve_callchain(sample, &callchain_cursor, NULL,
                     evsel, &al, sysctl_perf_event_max_stack);
     if (ret)
         goto out;
 
     mi = sample__resolve_mem(sample, &al);
     if (mi == NULL)
         return -ENOMEM;
 
     /*
      * The mi object is released in hists__add_entry_ops,
      * if it gets sorted out into existing data, so we need
      * to take the copy now.
      */
     mi_dup = mem_info__get(mi);
 
     c2c_decode_stats(&stats, mi);
 
     he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops,
                   &al, NULL, NULL, mi,
                   sample, true);
     if (he == NULL)
         goto free_mi;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     c2c_add_stats(&c2c_he->stats, &stats);
     c2c_add_stats(&c2c_hists->stats, &stats);
 
     c2c_he__set_cpu(c2c_he, sample);
     c2c_he__set_node(c2c_he, sample);
 
     hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
     ret = hist_entry__append_callchain(he, sample);
 
     if (!ret) {
         /*
          * There's already been warning about missing
          * sample's cpu value. Let's account all to
          * node 0 in this case, without any further
          * warning.
          *
          * Doing node stats only for single callchain data.
          */
         int cpu = sample->cpu == (unsigned int) -1 ? 0 : sample->cpu;
         int node = c2c.cpu2node[cpu];
 
         mi = mi_dup;
 
         c2c_hists = he__get_c2c_hists(he, c2c.cl_sort, 2);
         if (!c2c_hists)
             goto free_mi;
 
         he = hists__add_entry_ops(&c2c_hists->hists, &c2c_entry_ops,
                       &al, NULL, NULL, mi,
                       sample, true);
         if (he == NULL)
             goto free_mi;
 
         c2c_he = container_of(he, struct c2c_hist_entry, he);
         c2c_add_stats(&c2c_he->stats, &stats);
         c2c_add_stats(&c2c_hists->stats, &stats);
         c2c_add_stats(&c2c_he->node_stats[node], &stats);
 
         compute_stats(c2c_he, &stats, sample->weight);
 
         c2c_he__set_cpu(c2c_he, sample);
         c2c_he__set_node(c2c_he, sample);
 
         hists__inc_nr_samples(&c2c_hists->hists, he->filtered);
         ret = hist_entry__append_callchain(he, sample);
     }
 
 out:
     addr_location__put(&al);
     return ret;
 
 free_mi:
     mem_info__put(mi_dup);
     mem_info__put(mi);
     ret = -ENOMEM;
     goto out;
 }
 
 static struct perf_c2c c2c = {
     .tool = {
         .sample     = process_sample_event,
         .mmap       = perf_event__process_mmap,
         .mmap2      = perf_event__process_mmap2,
         .comm       = perf_event__process_comm,
         .exit       = perf_event__process_exit,
         .fork       = perf_event__process_fork,
         .lost       = perf_event__process_lost,
         .attr       = perf_event__process_attr,
         .auxtrace_info  = perf_event__process_auxtrace_info,
         .auxtrace       = perf_event__process_auxtrace,
         .auxtrace_error = perf_event__process_auxtrace_error,
         .ordered_events = true,
         .ordering_requires_timestamps = true,
     },
 };
 
 static const char * const c2c_usage[] = {
     "perf c2c {record|report}",
     NULL
 };
 
 static const char * const __usage_report[] = {
     "perf c2c report",
     NULL
 };
 
 static const char * const *report_c2c_usage = __usage_report;
 
 #define C2C_HEADER_MAX 2
 
 struct c2c_header {
     struct {
         const char *text;
         int     span;
     } line[C2C_HEADER_MAX];
 };
 
 struct c2c_dimension {
     struct c2c_header    header;
     const char      *name;
     int          width;
     struct sort_entry   *se;
 
     int64_t (*cmp)(struct perf_hpp_fmt *fmt,
                struct hist_entry *, struct hist_entry *);
     int   (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he);
     int   (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he);
 };
 
 struct c2c_fmt {
     struct perf_hpp_fmt  fmt;
     struct c2c_dimension    *dim;
 };
 
 #define SYMBOL_WIDTH 30
 
 static struct c2c_dimension dim_symbol;
 static struct c2c_dimension dim_srcline;
 
 static int symbol_width(struct hists *hists, struct sort_entry *se)
 {
     int width = hists__col_len(hists, se->se_width_idx);
 
     if (!c2c.symbol_full)
         width = MIN(width, SYMBOL_WIDTH);
 
     return width;
 }
 
 static int c2c_width(struct perf_hpp_fmt *fmt,
              struct perf_hpp *hpp __maybe_unused,
              struct hists *hists)
 {
     struct c2c_fmt *c2c_fmt;
     struct c2c_dimension *dim;
 
     c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
     dim = c2c_fmt->dim;
 
     if (dim == &dim_symbol || dim == &dim_srcline)
         return symbol_width(hists, dim->se);
 
     return dim->se ? hists__col_len(hists, dim->se->se_width_idx) :
              c2c_fmt->dim->width;
 }
 
 static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
               struct hists *hists, int line, int *span)
 {
     struct perf_hpp_list *hpp_list = hists->hpp_list;
     struct c2c_fmt *c2c_fmt;
     struct c2c_dimension *dim;
     const char *text = NULL;
     int width = c2c_width(fmt, hpp, hists);
 
     c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
     dim = c2c_fmt->dim;
 
     if (dim->se) {
         text = dim->header.line[line].text;
         /* Use the last line from sort_entry if not defined. */
         if (!text && (line == hpp_list->nr_header_lines - 1))
             text = dim->se->se_header;
     } else {
         text = dim->header.line[line].text;
 
         if (*span) {
             (*span)--;
             return 0;
         } else {
             *span = dim->header.line[line].span;
         }
     }
 
     if (text == NULL)
         text = "";
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
 }
 
 #define HEX_STR(__s, __v)               \
 ({                          \
     scnprintf(__s, sizeof(__s), "0x%" PRIx64, __v); \
     __s;                        \
 })
 
 static int64_t
 dcacheline_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
            struct hist_entry *left, struct hist_entry *right)
 {
     return sort__dcacheline_cmp(left, right);
 }
 
 static int dcacheline_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                 struct hist_entry *he)
 {
     uint64_t addr = 0;
     int width = c2c_width(fmt, hpp, he->hists);
     char buf[20];
 
     if (he->mem_info)
         addr = cl_address(he->mem_info->daddr.addr);
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
 }
 
 static int
 dcacheline_node_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
               struct hist_entry *he)
 {
     struct c2c_hist_entry *c2c_he;
     int width = c2c_width(fmt, hpp, he->hists);
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     if (WARN_ON_ONCE(!c2c_he->nodestr))
         return 0;
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, c2c_he->nodestr);
 }
 
 static int
 dcacheline_node_count(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
               struct hist_entry *he)
 {
     struct c2c_hist_entry *c2c_he;
     int width = c2c_width(fmt, hpp, he->hists);
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     return scnprintf(hpp->buf, hpp->size, "%*lu", width, c2c_he->paddr_cnt);
 }
 
 static int offset_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
             struct hist_entry *he)
 {
     uint64_t addr = 0;
     int width = c2c_width(fmt, hpp, he->hists);
     char buf[20];
 
     if (he->mem_info)
         addr = cl_offset(he->mem_info->daddr.al_addr);
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
 }
 
 static int64_t
 offset_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
        struct hist_entry *left, struct hist_entry *right)
 {
     uint64_t l = 0, r = 0;
 
     if (left->mem_info)
         l = cl_offset(left->mem_info->daddr.addr);
     if (right->mem_info)
         r = cl_offset(right->mem_info->daddr.addr);
 
     return (int64_t)(r - l);
 }
 
 static int
 iaddr_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
         struct hist_entry *he)
 {
     uint64_t addr = 0;
     int width = c2c_width(fmt, hpp, he->hists);
     char buf[20];
 
     if (he->mem_info)
         addr = he->mem_info->iaddr.addr;
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, HEX_STR(buf, addr));
 }
 
 static int64_t
 iaddr_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
       struct hist_entry *left, struct hist_entry *right)
 {
     return sort__iaddr_cmp(left, right);
 }
 
 static int
 tot_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
            struct hist_entry *he)
 {
     struct c2c_hist_entry *c2c_he;
     int width = c2c_width(fmt, hpp, he->hists);
     unsigned int tot_hitm;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     tot_hitm = c2c_he->stats.lcl_hitm + c2c_he->stats.rmt_hitm;
 
     return scnprintf(hpp->buf, hpp->size, "%*u", width, tot_hitm);
 }
 
 static int64_t
 tot_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
          struct hist_entry *left, struct hist_entry *right)
 {
     struct c2c_hist_entry *c2c_left;
     struct c2c_hist_entry *c2c_right;
     uint64_t tot_hitm_left;
     uint64_t tot_hitm_right;
 
     c2c_left  = container_of(left, struct c2c_hist_entry, he);
     c2c_right = container_of(right, struct c2c_hist_entry, he);
 
     tot_hitm_left  = c2c_left->stats.lcl_hitm + c2c_left->stats.rmt_hitm;
     tot_hitm_right = c2c_right->stats.lcl_hitm + c2c_right->stats.rmt_hitm;
 
     return tot_hitm_left - tot_hitm_right;
 }
 
 #define STAT_FN_ENTRY(__f)                  \
 static int                          \
 __f ## _entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,   \
           struct hist_entry *he)                \
 {                               \
     struct c2c_hist_entry *c2c_he;              \
     int width = c2c_width(fmt, hpp, he->hists);     \
                                 \
     c2c_he = container_of(he, struct c2c_hist_entry, he);   \
     return scnprintf(hpp->buf, hpp->size, "%*u", width, \
              c2c_he->stats.__f);            \
 }
 
 #define STAT_FN_CMP(__f)                        \
 static int64_t                              \
 __f ## _cmp(struct perf_hpp_fmt *fmt __maybe_unused,            \
         struct hist_entry *left, struct hist_entry *right)      \
 {                                   \
     struct c2c_hist_entry *c2c_left, *c2c_right;            \
                                     \
     c2c_left  = container_of(left, struct c2c_hist_entry, he);  \
     c2c_right = container_of(right, struct c2c_hist_entry, he); \
     return (uint64_t) c2c_left->stats.__f -             \
            (uint64_t) c2c_right->stats.__f;             \
 }
 
 #define STAT_FN(__f)        \
     STAT_FN_ENTRY(__f)  \
     STAT_FN_CMP(__f)
 
 STAT_FN(rmt_hitm)
 STAT_FN(lcl_hitm)
 STAT_FN(rmt_peer)
 STAT_FN(lcl_peer)
 STAT_FN(tot_peer)
 STAT_FN(store)
 STAT_FN(st_l1hit)
 STAT_FN(st_l1miss)
 STAT_FN(st_na)
 STAT_FN(ld_fbhit)
 STAT_FN(ld_l1hit)
 STAT_FN(ld_l2hit)
 STAT_FN(ld_llchit)
 STAT_FN(rmt_hit)
 
 static uint64_t total_records(struct c2c_stats *stats)
 {
     uint64_t lclmiss, ldcnt, total;
 
     lclmiss  = stats->lcl_dram +
            stats->rmt_dram +
            stats->rmt_hitm +
            stats->rmt_hit;
 
     ldcnt    = lclmiss +
            stats->ld_fbhit +
            stats->ld_l1hit +
            stats->ld_l2hit +
            stats->ld_llchit +
            stats->lcl_hitm;
 
     total    = ldcnt +
            stats->st_l1hit +
            stats->st_l1miss +
            stats->st_na;
 
     return total;
 }
 
 static int
 tot_recs_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
         struct hist_entry *he)
 {
     struct c2c_hist_entry *c2c_he;
     int width = c2c_width(fmt, hpp, he->hists);
     uint64_t tot_recs;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     tot_recs = total_records(&c2c_he->stats);
 
     return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs);
 }
 
 static int64_t
 tot_recs_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
          struct hist_entry *left, struct hist_entry *right)
 {
     struct c2c_hist_entry *c2c_left;
     struct c2c_hist_entry *c2c_right;
     uint64_t tot_recs_left;
     uint64_t tot_recs_right;
 
     c2c_left  = container_of(left, struct c2c_hist_entry, he);
     c2c_right = container_of(right, struct c2c_hist_entry, he);
 
     tot_recs_left  = total_records(&c2c_left->stats);
     tot_recs_right = total_records(&c2c_right->stats);
 
     return tot_recs_left - tot_recs_right;
 }
 
 static uint64_t total_loads(struct c2c_stats *stats)
 {
     uint64_t lclmiss, ldcnt;
 
     lclmiss  = stats->lcl_dram +
            stats->rmt_dram +
            stats->rmt_hitm +
            stats->rmt_hit;
 
     ldcnt    = lclmiss +
            stats->ld_fbhit +
            stats->ld_l1hit +
            stats->ld_l2hit +
            stats->ld_llchit +
            stats->lcl_hitm;
 
     return ldcnt;
 }
 
 static int
 tot_loads_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
         struct hist_entry *he)
 {
     struct c2c_hist_entry *c2c_he;
     int width = c2c_width(fmt, hpp, he->hists);
     uint64_t tot_recs;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     tot_recs = total_loads(&c2c_he->stats);
 
     return scnprintf(hpp->buf, hpp->size, "%*" PRIu64, width, tot_recs);
 }
 
 static int64_t
 tot_loads_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
           struct hist_entry *left, struct hist_entry *right)
 {
     struct c2c_hist_entry *c2c_left;
     struct c2c_hist_entry *c2c_right;
     uint64_t tot_recs_left;
     uint64_t tot_recs_right;
 
     c2c_left  = container_of(left, struct c2c_hist_entry, he);
     c2c_right = container_of(right, struct c2c_hist_entry, he);
 
     tot_recs_left  = total_loads(&c2c_left->stats);
     tot_recs_right = total_loads(&c2c_right->stats);
 
     return tot_recs_left - tot_recs_right;
 }
 
 typedef double (get_percent_cb)(struct c2c_hist_entry *);
 
 static int
 percent_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
           struct hist_entry *he, get_percent_cb get_percent)
 {
     struct c2c_hist_entry *c2c_he;
     int width = c2c_width(fmt, hpp, he->hists);
     double per;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     per = get_percent(c2c_he);
 
 #ifdef HAVE_SLANG_SUPPORT
     if (use_browser)
         return __hpp__slsmg_color_printf(hpp, "%*.2f%%", width - 1, per);
 #endif
     return hpp_color_scnprintf(hpp, "%*.2f%%", width - 1, per);
 }
 
 static double percent_costly_snoop(struct c2c_hist_entry *c2c_he)
 {
     struct c2c_hists *hists;
     struct c2c_stats *stats;
     struct c2c_stats *total;
     int tot = 0, st = 0;
     double p;
 
     hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);
     stats = &c2c_he->stats;
     total = &hists->stats;
 
     switch (c2c.display) {
     case DISPLAY_RMT_HITM:
         st  = stats->rmt_hitm;
         tot = total->rmt_hitm;
         break;
     case DISPLAY_LCL_HITM:
         st  = stats->lcl_hitm;
         tot = total->lcl_hitm;
         break;
     case DISPLAY_TOT_HITM:
         st  = stats->tot_hitm;
         tot = total->tot_hitm;
         break;
     case DISPLAY_SNP_PEER:
         st  = stats->tot_peer;
         tot = total->tot_peer;
         break;
     default:
         break;
     }
 
     p = tot ? (double) st / tot : 0;
 
     return 100 * p;
 }
 
 #define PERC_STR(__s, __v)              \
 ({                          \
     scnprintf(__s, sizeof(__s), "%.2F%%", __v); \
     __s;                        \
 })
 
 static int
 percent_costly_snoop_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     struct c2c_hist_entry *c2c_he;
     int width = c2c_width(fmt, hpp, he->hists);
     char buf[10];
     double per;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     per = percent_costly_snoop(c2c_he);
     return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 }
 
 static int
 percent_costly_snoop_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     return percent_color(fmt, hpp, he, percent_costly_snoop);
 }
 
 static int64_t
 percent_costly_snoop_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
              struct hist_entry *left, struct hist_entry *right)
 {
     struct c2c_hist_entry *c2c_left;
     struct c2c_hist_entry *c2c_right;
     double per_left;
     double per_right;
 
     c2c_left  = container_of(left, struct c2c_hist_entry, he);
     c2c_right = container_of(right, struct c2c_hist_entry, he);
 
     per_left  = percent_costly_snoop(c2c_left);
     per_right = percent_costly_snoop(c2c_right);
 
     return per_left - per_right;
 }
 
 static struct c2c_stats *he_stats(struct hist_entry *he)
 {
     struct c2c_hist_entry *c2c_he;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     return &c2c_he->stats;
 }
 
 static struct c2c_stats *total_stats(struct hist_entry *he)
 {
     struct c2c_hists *hists;
 
     hists = container_of(he->hists, struct c2c_hists, hists);
     return &hists->stats;
 }
 
 static double percent(u32 st, u32 tot)
 {
     return tot ? 100. * (double) st / (double) tot : 0;
 }
 
 #define PERCENT(__h, __f) percent(he_stats(__h)->__f, total_stats(__h)->__f)
 
 #define PERCENT_FN(__f)                             \
 static double percent_ ## __f(struct c2c_hist_entry *c2c_he)            \
 {                                       \
     struct c2c_hists *hists;                        \
                                         \
     hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);    \
     return percent(c2c_he->stats.__f, hists->stats.__f);            \
 }
 
 PERCENT_FN(rmt_hitm)
 PERCENT_FN(lcl_hitm)
 PERCENT_FN(rmt_peer)
 PERCENT_FN(lcl_peer)
 PERCENT_FN(st_l1hit)
 PERCENT_FN(st_l1miss)
 PERCENT_FN(st_na)
 
 static int
 percent_rmt_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     int width = c2c_width(fmt, hpp, he->hists);
     double per = PERCENT(he, rmt_hitm);
     char buf[10];
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 }
 
 static int
 percent_rmt_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     return percent_color(fmt, hpp, he, percent_rmt_hitm);
 }
 
 static int64_t
 percent_rmt_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
              struct hist_entry *left, struct hist_entry *right)
 {
     double per_left;
     double per_right;
 
     per_left  = PERCENT(left, rmt_hitm);
     per_right = PERCENT(right, rmt_hitm);
 
     return per_left - per_right;
 }
 
 static int
 percent_lcl_hitm_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     int width = c2c_width(fmt, hpp, he->hists);
     double per = PERCENT(he, lcl_hitm);
     char buf[10];
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 }
 
 static int
 percent_lcl_hitm_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     return percent_color(fmt, hpp, he, percent_lcl_hitm);
 }
 
 static int64_t
 percent_lcl_hitm_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
              struct hist_entry *left, struct hist_entry *right)
 {
     double per_left;
     double per_right;
 
     per_left  = PERCENT(left, lcl_hitm);
     per_right = PERCENT(right, lcl_hitm);
 
     return per_left - per_right;
 }
 
 static int
 percent_lcl_peer_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     int width = c2c_width(fmt, hpp, he->hists);
     double per = PERCENT(he, lcl_peer);
     char buf[10];
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 }
 
 static int
 percent_lcl_peer_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     return percent_color(fmt, hpp, he, percent_lcl_peer);
 }
 
 static int64_t
 percent_lcl_peer_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
              struct hist_entry *left, struct hist_entry *right)
 {
     double per_left;
     double per_right;
 
     per_left  = PERCENT(left, lcl_peer);
     per_right = PERCENT(right, lcl_peer);
 
     return per_left - per_right;
 }
 
 static int
 percent_rmt_peer_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     int width = c2c_width(fmt, hpp, he->hists);
     double per = PERCENT(he, rmt_peer);
     char buf[10];
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 }
 
 static int
 percent_rmt_peer_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     return percent_color(fmt, hpp, he, percent_rmt_peer);
 }
 
 static int64_t
 percent_rmt_peer_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
              struct hist_entry *left, struct hist_entry *right)
 {
     double per_left;
     double per_right;
 
     per_left  = PERCENT(left, rmt_peer);
     per_right = PERCENT(right, rmt_peer);
 
     return per_left - per_right;
 }
 
 static int
 percent_stores_l1hit_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     int width = c2c_width(fmt, hpp, he->hists);
     double per = PERCENT(he, st_l1hit);
     char buf[10];
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 }
 
 static int
 percent_stores_l1hit_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     return percent_color(fmt, hpp, he, percent_st_l1hit);
 }
 
 static int64_t
 percent_stores_l1hit_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
             struct hist_entry *left, struct hist_entry *right)
 {
     double per_left;
     double per_right;
 
     per_left  = PERCENT(left, st_l1hit);
     per_right = PERCENT(right, st_l1hit);
 
     return per_left - per_right;
 }
 
 static int
 percent_stores_l1miss_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                struct hist_entry *he)
 {
     int width = c2c_width(fmt, hpp, he->hists);
     double per = PERCENT(he, st_l1miss);
     char buf[10];
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 }
 
 static int
 percent_stores_l1miss_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
                 struct hist_entry *he)
 {
     return percent_color(fmt, hpp, he, percent_st_l1miss);
 }
 
 static int64_t
 percent_stores_l1miss_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
               struct hist_entry *left, struct hist_entry *right)
 {
     double per_left;
     double per_right;
 
     per_left  = PERCENT(left, st_l1miss);
     per_right = PERCENT(right, st_l1miss);
 
     return per_left - per_right;
 }
 
 static int
 percent_stores_na_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
             struct hist_entry *he)
 {
     int width = c2c_width(fmt, hpp, he->hists);
     double per = PERCENT(he, st_na);
     char buf[10];
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, PERC_STR(buf, per));
 }
 
 static int
 percent_stores_na_color(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
             struct hist_entry *he)
 {
     return percent_color(fmt, hpp, he, percent_st_na);
 }
 
 static int64_t
 percent_stores_na_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
               struct hist_entry *left, struct hist_entry *right)
 {
     double per_left;
     double per_right;
 
     per_left  = PERCENT(left, st_na);
     per_right = PERCENT(right, st_na);
 
     return per_left - per_right;
 }
 
 STAT_FN(lcl_dram)
 STAT_FN(rmt_dram)
 
 static int
 pid_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
       struct hist_entry *he)
 {
     int width = c2c_width(fmt, hpp, he->hists);
 
     return scnprintf(hpp->buf, hpp->size, "%*d", width, he->thread->pid_);
 }
 
 static int64_t
 pid_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
     struct hist_entry *left, struct hist_entry *right)
 {
     return left->thread->pid_ - right->thread->pid_;
 }
 
 static int64_t
 empty_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
       struct hist_entry *left __maybe_unused,
       struct hist_entry *right __maybe_unused)
 {
     return 0;
 }
 
 static int display_metrics(struct perf_hpp *hpp, u32 val, u32 sum)
 {
     int ret;
 
     if (sum != 0)
         ret = scnprintf(hpp->buf, hpp->size, "%5.1f%% ",
                 percent(val, sum));
     else
         ret = scnprintf(hpp->buf, hpp->size, "%6s ", "n/a");
 
     return ret;
 }
 
 static int
 node_entry(struct perf_hpp_fmt *fmt __maybe_unused, struct perf_hpp *hpp,
        struct hist_entry *he)
 {
     struct c2c_hist_entry *c2c_he;
     bool first = true;
     int node;
     int ret = 0;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
 
     for (node = 0; node < c2c.nodes_cnt; node++) {
         DECLARE_BITMAP(set, c2c.cpus_cnt);
 
         bitmap_zero(set, c2c.cpus_cnt);
         bitmap_and(set, c2c_he->cpuset, c2c.nodes[node], c2c.cpus_cnt);
 
         if (bitmap_empty(set, c2c.cpus_cnt)) {
             if (c2c.node_info == 1) {
                 ret = scnprintf(hpp->buf, hpp->size, "%21s", " ");
                 advance_hpp(hpp, ret);
             }
             continue;
         }
 
         if (!first) {
             ret = scnprintf(hpp->buf, hpp->size, " ");
             advance_hpp(hpp, ret);
         }
 
         switch (c2c.node_info) {
         case 0:
             ret = scnprintf(hpp->buf, hpp->size, "%2d", node);
             advance_hpp(hpp, ret);
             break;
         case 1:
         {
             int num = bitmap_weight(set, c2c.cpus_cnt);
             struct c2c_stats *stats = &c2c_he->node_stats[node];
 
             ret = scnprintf(hpp->buf, hpp->size, "%2d{%2d ", node, num);
             advance_hpp(hpp, ret);
 
             switch (c2c.display) {
             case DISPLAY_RMT_HITM:
                 ret = display_metrics(hpp, stats->rmt_hitm,
                               c2c_he->stats.rmt_hitm);
                 break;
             case DISPLAY_LCL_HITM:
                 ret = display_metrics(hpp, stats->lcl_hitm,
                               c2c_he->stats.lcl_hitm);
                 break;
             case DISPLAY_TOT_HITM:
                 ret = display_metrics(hpp, stats->tot_hitm,
                               c2c_he->stats.tot_hitm);
                 break;
             case DISPLAY_SNP_PEER:
                 ret = display_metrics(hpp, stats->tot_peer,
                               c2c_he->stats.tot_peer);
                 break;
             default:
                 break;
             }
 
             advance_hpp(hpp, ret);
 
             if (c2c_he->stats.store > 0) {
                 ret = scnprintf(hpp->buf, hpp->size, "%5.1f%%}",
                         percent(stats->store, c2c_he->stats.store));
             } else {
                 ret = scnprintf(hpp->buf, hpp->size, "%6s}", "n/a");
             }
 
             advance_hpp(hpp, ret);
             break;
         }
         case 2:
             ret = scnprintf(hpp->buf, hpp->size, "%2d{", node);
             advance_hpp(hpp, ret);
 
             ret = bitmap_scnprintf(set, c2c.cpus_cnt, hpp->buf, hpp->size);
             advance_hpp(hpp, ret);
 
             ret = scnprintf(hpp->buf, hpp->size, "}");
             advance_hpp(hpp, ret);
             break;
         default:
             break;
         }
 
         first = false;
     }
 
     return 0;
 }
 
 static int
 mean_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
        struct hist_entry *he, double mean)
 {
     int width = c2c_width(fmt, hpp, he->hists);
     char buf[10];
 
     scnprintf(buf, 10, "%6.0f", mean);
     return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
 }
 
 #define MEAN_ENTRY(__func, __val)                       \
 static int                                  \
 __func(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp, struct hist_entry *he)   \
 {                                       \
     struct c2c_hist_entry *c2c_he;                      \
     c2c_he = container_of(he, struct c2c_hist_entry, he);           \
     return mean_entry(fmt, hpp, he, avg_stats(&c2c_he->cstats.__val));  \
 }
 
 MEAN_ENTRY(mean_rmt_entry,  rmt_hitm);
 MEAN_ENTRY(mean_lcl_entry,  lcl_hitm);
 MEAN_ENTRY(mean_load_entry, load);
 MEAN_ENTRY(mean_rmt_peer_entry, rmt_peer);
 MEAN_ENTRY(mean_lcl_peer_entry, lcl_peer);
 
 static int
 cpucnt_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
          struct hist_entry *he)
 {
     struct c2c_hist_entry *c2c_he;
     int width = c2c_width(fmt, hpp, he->hists);
     char buf[10];
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
 
     scnprintf(buf, 10, "%d", bitmap_weight(c2c_he->cpuset, c2c.cpus_cnt));
     return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
 }
 
 static int
 cl_idx_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
          struct hist_entry *he)
 {
     struct c2c_hist_entry *c2c_he;
     int width = c2c_width(fmt, hpp, he->hists);
     char buf[10];
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
 
     scnprintf(buf, 10, "%u", c2c_he->cacheline_idx);
     return scnprintf(hpp->buf, hpp->size, "%*s", width, buf);
 }
 
 static int
 cl_idx_empty_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
            struct hist_entry *he)
 {
     int width = c2c_width(fmt, hpp, he->hists);
 
     return scnprintf(hpp->buf, hpp->size, "%*s", width, "");
 }
 
 #define HEADER_LOW(__h)         \
     {               \
         .line[1] = {        \
             .text = __h,    \
         },          \
     }
 
 #define HEADER_BOTH(__h0, __h1)     \
     {               \
         .line[0] = {        \
             .text = __h0,   \
         },          \
         .line[1] = {        \
             .text = __h1,   \
         },          \
     }
 
 #define HEADER_SPAN(__h0, __h1, __s)    \
     {               \
         .line[0] = {        \
             .text = __h0,   \
             .span = __s,    \
         },          \
         .line[1] = {        \
             .text = __h1,   \
         },          \
     }
 
 #define HEADER_SPAN_LOW(__h)        \
     {               \
         .line[1] = {        \
             .text = __h,    \
         },          \
     }
 
 static struct c2c_dimension dim_dcacheline = {
     .header     = HEADER_SPAN("--- Cacheline ----", "Address", 2),
     .name       = "dcacheline",
     .cmp        = dcacheline_cmp,
     .entry      = dcacheline_entry,
     .width      = 18,
 };
 
 static struct c2c_dimension dim_dcacheline_node = {
     .header     = HEADER_LOW("Node"),
     .name       = "dcacheline_node",
     .cmp        = empty_cmp,
     .entry      = dcacheline_node_entry,
     .width      = 4,
 };
 
 static struct c2c_dimension dim_dcacheline_count = {
     .header     = HEADER_LOW("PA cnt"),
     .name       = "dcacheline_count",
     .cmp        = empty_cmp,
     .entry      = dcacheline_node_count,
     .width      = 6,
 };
 
 static struct c2c_header header_offset_tui = HEADER_SPAN("-----", "Off", 2);
 
 static struct c2c_dimension dim_offset = {
     .header     = HEADER_SPAN("--- Data address -", "Offset", 2),
     .name       = "offset",
     .cmp        = offset_cmp,
     .entry      = offset_entry,
     .width      = 18,
 };
 
 static struct c2c_dimension dim_offset_node = {
     .header     = HEADER_LOW("Node"),
     .name       = "offset_node",
     .cmp        = empty_cmp,
     .entry      = dcacheline_node_entry,
     .width      = 4,
 };
 
 static struct c2c_dimension dim_iaddr = {
     .header     = HEADER_LOW("Code address"),
     .name       = "iaddr",
     .cmp        = iaddr_cmp,
     .entry      = iaddr_entry,
     .width      = 18,
 };
 
 static struct c2c_dimension dim_tot_hitm = {
     .header     = HEADER_SPAN("------- Load Hitm -------", "Total", 2),
     .name       = "tot_hitm",
     .cmp        = tot_hitm_cmp,
     .entry      = tot_hitm_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_lcl_hitm = {
     .header     = HEADER_SPAN_LOW("LclHitm"),
     .name       = "lcl_hitm",
     .cmp        = lcl_hitm_cmp,
     .entry      = lcl_hitm_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_rmt_hitm = {
     .header     = HEADER_SPAN_LOW("RmtHitm"),
     .name       = "rmt_hitm",
     .cmp        = rmt_hitm_cmp,
     .entry      = rmt_hitm_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_tot_peer = {
     .header     = HEADER_SPAN("------- Load Peer -------", "Total", 2),
     .name       = "tot_peer",
     .cmp        = tot_peer_cmp,
     .entry      = tot_peer_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_lcl_peer = {
     .header     = HEADER_SPAN_LOW("Local"),
     .name       = "lcl_peer",
     .cmp        = lcl_peer_cmp,
     .entry      = lcl_peer_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_rmt_peer = {
     .header     = HEADER_SPAN_LOW("Remote"),
     .name       = "rmt_peer",
     .cmp        = rmt_peer_cmp,
     .entry      = rmt_peer_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_cl_rmt_hitm = {
     .header     = HEADER_SPAN("----- HITM -----", "Rmt", 1),
     .name       = "cl_rmt_hitm",
     .cmp        = rmt_hitm_cmp,
     .entry      = rmt_hitm_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_cl_lcl_hitm = {
     .header     = HEADER_SPAN_LOW("Lcl"),
     .name       = "cl_lcl_hitm",
     .cmp        = lcl_hitm_cmp,
     .entry      = lcl_hitm_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_cl_rmt_peer = {
     .header     = HEADER_SPAN("----- Peer -----", "Rmt", 1),
     .name       = "cl_rmt_peer",
     .cmp        = rmt_peer_cmp,
     .entry      = rmt_peer_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_cl_lcl_peer = {
     .header     = HEADER_SPAN_LOW("Lcl"),
     .name       = "cl_lcl_peer",
     .cmp        = lcl_peer_cmp,
     .entry      = lcl_peer_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_tot_stores = {
     .header     = HEADER_BOTH("Total", "Stores"),
     .name       = "tot_stores",
     .cmp        = store_cmp,
     .entry      = store_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_stores_l1hit = {
     .header     = HEADER_SPAN("--------- Stores --------", "L1Hit", 2),
     .name       = "stores_l1hit",
     .cmp        = st_l1hit_cmp,
     .entry      = st_l1hit_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_stores_l1miss = {
     .header     = HEADER_SPAN_LOW("L1Miss"),
     .name       = "stores_l1miss",
     .cmp        = st_l1miss_cmp,
     .entry      = st_l1miss_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_stores_na = {
     .header     = HEADER_SPAN_LOW("N/A"),
     .name       = "stores_na",
     .cmp        = st_na_cmp,
     .entry      = st_na_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_cl_stores_l1hit = {
     .header     = HEADER_SPAN("------- Store Refs ------", "L1 Hit", 2),
     .name       = "cl_stores_l1hit",
     .cmp        = st_l1hit_cmp,
     .entry      = st_l1hit_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_cl_stores_l1miss = {
     .header     = HEADER_SPAN_LOW("L1 Miss"),
     .name       = "cl_stores_l1miss",
     .cmp        = st_l1miss_cmp,
     .entry      = st_l1miss_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_cl_stores_na = {
     .header     = HEADER_SPAN_LOW("N/A"),
     .name       = "cl_stores_na",
     .cmp        = st_na_cmp,
     .entry      = st_na_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_ld_fbhit = {
     .header     = HEADER_SPAN("----- Core Load Hit -----", "FB", 2),
     .name       = "ld_fbhit",
     .cmp        = ld_fbhit_cmp,
     .entry      = ld_fbhit_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_ld_l1hit = {
     .header     = HEADER_SPAN_LOW("L1"),
     .name       = "ld_l1hit",
     .cmp        = ld_l1hit_cmp,
     .entry      = ld_l1hit_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_ld_l2hit = {
     .header     = HEADER_SPAN_LOW("L2"),
     .name       = "ld_l2hit",
     .cmp        = ld_l2hit_cmp,
     .entry      = ld_l2hit_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_ld_llchit = {
     .header     = HEADER_SPAN("- LLC Load Hit --", "LclHit", 1),
     .name       = "ld_lclhit",
     .cmp        = ld_llchit_cmp,
     .entry      = ld_llchit_entry,
     .width      = 8,
 };
 
 static struct c2c_dimension dim_ld_rmthit = {
     .header     = HEADER_SPAN("- RMT Load Hit --", "RmtHit", 1),
     .name       = "ld_rmthit",
     .cmp        = rmt_hit_cmp,
     .entry      = rmt_hit_entry,
     .width      = 8,
 };
 
 static struct c2c_dimension dim_tot_recs = {
     .header     = HEADER_BOTH("Total", "records"),
     .name       = "tot_recs",
     .cmp        = tot_recs_cmp,
     .entry      = tot_recs_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_tot_loads = {
     .header     = HEADER_BOTH("Total", "Loads"),
     .name       = "tot_loads",
     .cmp        = tot_loads_cmp,
     .entry      = tot_loads_entry,
     .width      = 7,
 };
 
 static struct c2c_header percent_costly_snoop_header[] = {
     [DISPLAY_LCL_HITM] = HEADER_BOTH("Lcl", "Hitm"),
     [DISPLAY_RMT_HITM] = HEADER_BOTH("Rmt", "Hitm"),
     [DISPLAY_TOT_HITM] = HEADER_BOTH("Tot", "Hitm"),
     [DISPLAY_SNP_PEER] = HEADER_BOTH("Peer", "Snoop"),
 };
 
 static struct c2c_dimension dim_percent_costly_snoop = {
     .name       = "percent_costly_snoop",
     .cmp        = percent_costly_snoop_cmp,
     .entry      = percent_costly_snoop_entry,
     .color      = percent_costly_snoop_color,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_percent_rmt_hitm = {
     .header     = HEADER_SPAN("----- HITM -----", "RmtHitm", 1),
     .name       = "percent_rmt_hitm",
     .cmp        = percent_rmt_hitm_cmp,
     .entry      = percent_rmt_hitm_entry,
     .color      = percent_rmt_hitm_color,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_percent_lcl_hitm = {
     .header     = HEADER_SPAN_LOW("LclHitm"),
     .name       = "percent_lcl_hitm",
     .cmp        = percent_lcl_hitm_cmp,
     .entry      = percent_lcl_hitm_entry,
     .color      = percent_lcl_hitm_color,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_percent_rmt_peer = {
     .header     = HEADER_SPAN("-- Peer Snoop --", "Rmt", 1),
     .name       = "percent_rmt_peer",
     .cmp        = percent_rmt_peer_cmp,
     .entry      = percent_rmt_peer_entry,
     .color      = percent_rmt_peer_color,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_percent_lcl_peer = {
     .header     = HEADER_SPAN_LOW("Lcl"),
     .name       = "percent_lcl_peer",
     .cmp        = percent_lcl_peer_cmp,
     .entry      = percent_lcl_peer_entry,
     .color      = percent_lcl_peer_color,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_percent_stores_l1hit = {
     .header     = HEADER_SPAN("------- Store Refs ------", "L1 Hit", 2),
     .name       = "percent_stores_l1hit",
     .cmp        = percent_stores_l1hit_cmp,
     .entry      = percent_stores_l1hit_entry,
     .color      = percent_stores_l1hit_color,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_percent_stores_l1miss = {
     .header     = HEADER_SPAN_LOW("L1 Miss"),
     .name       = "percent_stores_l1miss",
     .cmp        = percent_stores_l1miss_cmp,
     .entry      = percent_stores_l1miss_entry,
     .color      = percent_stores_l1miss_color,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_percent_stores_na = {
     .header     = HEADER_SPAN_LOW("N/A"),
     .name       = "percent_stores_na",
     .cmp        = percent_stores_na_cmp,
     .entry      = percent_stores_na_entry,
     .color      = percent_stores_na_color,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_dram_lcl = {
     .header     = HEADER_SPAN("--- Load Dram ----", "Lcl", 1),
     .name       = "dram_lcl",
     .cmp        = lcl_dram_cmp,
     .entry      = lcl_dram_entry,
     .width      = 8,
 };
 
 static struct c2c_dimension dim_dram_rmt = {
     .header     = HEADER_SPAN_LOW("Rmt"),
     .name       = "dram_rmt",
     .cmp        = rmt_dram_cmp,
     .entry      = rmt_dram_entry,
     .width      = 8,
 };
 
 static struct c2c_dimension dim_pid = {
     .header     = HEADER_LOW("Pid"),
     .name       = "pid",
     .cmp        = pid_cmp,
     .entry      = pid_entry,
     .width      = 7,
 };
 
 static struct c2c_dimension dim_tid = {
     .header     = HEADER_LOW("Tid"),
     .name       = "tid",
     .se     = &sort_thread,
 };
 
 static struct c2c_dimension dim_symbol = {
     .name       = "symbol",
     .se     = &sort_sym,
 };
 
 static struct c2c_dimension dim_dso = {
     .header     = HEADER_BOTH("Shared", "Object"),
     .name       = "dso",
     .se     = &sort_dso,
 };
 
 static struct c2c_dimension dim_node = {
     .name       = "node",
     .cmp        = empty_cmp,
     .entry      = node_entry,
     .width      = 4,
 };
 
 static struct c2c_dimension dim_mean_rmt = {
     .header     = HEADER_SPAN("---------- cycles ----------", "rmt hitm", 2),
     .name       = "mean_rmt",
     .cmp        = empty_cmp,
     .entry      = mean_rmt_entry,
     .width      = 8,
 };
 
 static struct c2c_dimension dim_mean_lcl = {
     .header     = HEADER_SPAN_LOW("lcl hitm"),
     .name       = "mean_lcl",
     .cmp        = empty_cmp,
     .entry      = mean_lcl_entry,
     .width      = 8,
 };
 
 static struct c2c_dimension dim_mean_load = {
     .header     = HEADER_SPAN_LOW("load"),
     .name       = "mean_load",
     .cmp        = empty_cmp,
     .entry      = mean_load_entry,
     .width      = 8,
 };
 
 static struct c2c_dimension dim_mean_rmt_peer = {
     .header     = HEADER_SPAN("---------- cycles ----------", "rmt peer", 2),
     .name       = "mean_rmt_peer",
     .cmp        = empty_cmp,
     .entry      = mean_rmt_peer_entry,
     .width      = 8,
 };
 
 static struct c2c_dimension dim_mean_lcl_peer = {
     .header     = HEADER_SPAN_LOW("lcl peer"),
     .name       = "mean_lcl_peer",
     .cmp        = empty_cmp,
     .entry      = mean_lcl_peer_entry,
     .width      = 8,
 };
 
 static struct c2c_dimension dim_cpucnt = {
     .header     = HEADER_BOTH("cpu", "cnt"),
     .name       = "cpucnt",
     .cmp        = empty_cmp,
     .entry      = cpucnt_entry,
     .width      = 8,
 };
 
 static struct c2c_dimension dim_srcline = {
     .name       = "cl_srcline",
     .se     = &sort_srcline,
 };
 
 static struct c2c_dimension dim_dcacheline_idx = {
     .header     = HEADER_LOW("Index"),
     .name       = "cl_idx",
     .cmp        = empty_cmp,
     .entry      = cl_idx_entry,
     .width      = 5,
 };
 
 static struct c2c_dimension dim_dcacheline_num = {
     .header     = HEADER_LOW("Num"),
     .name       = "cl_num",
     .cmp        = empty_cmp,
     .entry      = cl_idx_entry,
     .width      = 5,
 };
 
 static struct c2c_dimension dim_dcacheline_num_empty = {
     .header     = HEADER_LOW("Num"),
     .name       = "cl_num_empty",
     .cmp        = empty_cmp,
     .entry      = cl_idx_empty_entry,
     .width      = 5,
 };
 
 static struct c2c_dimension *dimensions[] = {
     &dim_dcacheline,
     &dim_dcacheline_node,
     &dim_dcacheline_count,
     &dim_offset,
     &dim_offset_node,
     &dim_iaddr,
     &dim_tot_hitm,
     &dim_lcl_hitm,
     &dim_rmt_hitm,
     &dim_tot_peer,
     &dim_lcl_peer,
     &dim_rmt_peer,
     &dim_cl_lcl_hitm,
     &dim_cl_rmt_hitm,
     &dim_cl_lcl_peer,
     &dim_cl_rmt_peer,
     &dim_tot_stores,
     &dim_stores_l1hit,
     &dim_stores_l1miss,
     &dim_stores_na,
     &dim_cl_stores_l1hit,
     &dim_cl_stores_l1miss,
     &dim_cl_stores_na,
     &dim_ld_fbhit,
     &dim_ld_l1hit,
     &dim_ld_l2hit,
     &dim_ld_llchit,
     &dim_ld_rmthit,
     &dim_tot_recs,
     &dim_tot_loads,
     &dim_percent_costly_snoop,
     &dim_percent_rmt_hitm,
     &dim_percent_lcl_hitm,
     &dim_percent_rmt_peer,
     &dim_percent_lcl_peer,
     &dim_percent_stores_l1hit,
     &dim_percent_stores_l1miss,
     &dim_percent_stores_na,
     &dim_dram_lcl,
     &dim_dram_rmt,
     &dim_pid,
     &dim_tid,
     &dim_symbol,
     &dim_dso,
     &dim_node,
     &dim_mean_rmt,
     &dim_mean_lcl,
     &dim_mean_rmt_peer,
     &dim_mean_lcl_peer,
     &dim_mean_load,
     &dim_cpucnt,
     &dim_srcline,
     &dim_dcacheline_idx,
     &dim_dcacheline_num,
     &dim_dcacheline_num_empty,
     NULL,
 };
 
 static void fmt_free(struct perf_hpp_fmt *fmt)
 {
     struct c2c_fmt *c2c_fmt;
 
     c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
     free(c2c_fmt);
 }
 
 static bool fmt_equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
 {
     struct c2c_fmt *c2c_a = container_of(a, struct c2c_fmt, fmt);
     struct c2c_fmt *c2c_b = container_of(b, struct c2c_fmt, fmt);
 
     return c2c_a->dim == c2c_b->dim;
 }
 
 static struct c2c_dimension *get_dimension(const char *name)
 {
     unsigned int i;
 
     for (i = 0; dimensions[i]; i++) {
         struct c2c_dimension *dim = dimensions[i];
 
         if (!strcmp(dim->name, name))
             return dim;
     }
 
     return NULL;
 }
 
 static int c2c_se_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
             struct hist_entry *he)
 {
     struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
     struct c2c_dimension *dim = c2c_fmt->dim;
     size_t len = fmt->user_len;
 
     if (!len) {
         len = hists__col_len(he->hists, dim->se->se_width_idx);
 
         if (dim == &dim_symbol || dim == &dim_srcline)
             len = symbol_width(he->hists, dim->se);
     }
 
     return dim->se->se_snprintf(he, hpp->buf, hpp->size, len);
 }
 
 static int64_t c2c_se_cmp(struct perf_hpp_fmt *fmt,
               struct hist_entry *a, struct hist_entry *b)
 {
     struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
     struct c2c_dimension *dim = c2c_fmt->dim;
 
     return dim->se->se_cmp(a, b);
 }
 
 static int64_t c2c_se_collapse(struct perf_hpp_fmt *fmt,
                    struct hist_entry *a, struct hist_entry *b)
 {
     struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
     struct c2c_dimension *dim = c2c_fmt->dim;
     int64_t (*collapse_fn)(struct hist_entry *, struct hist_entry *);
 
     collapse_fn = dim->se->se_collapse ?: dim->se->se_cmp;
     return collapse_fn(a, b);
 }
 
 static struct c2c_fmt *get_format(const char *name)
 {
     struct c2c_dimension *dim = get_dimension(name);
     struct c2c_fmt *c2c_fmt;
     struct perf_hpp_fmt *fmt;
 
     if (!dim)
         return NULL;
 
     c2c_fmt = zalloc(sizeof(*c2c_fmt));
     if (!c2c_fmt)
         return NULL;
 
     c2c_fmt->dim = dim;
 
     fmt = &c2c_fmt->fmt;
     INIT_LIST_HEAD(&fmt->list);
     INIT_LIST_HEAD(&fmt->sort_list);
 
     fmt->cmp    = dim->se ? c2c_se_cmp   : dim->cmp;
     fmt->sort   = dim->se ? c2c_se_cmp   : dim->cmp;
     fmt->color  = dim->se ? NULL     : dim->color;
     fmt->entry  = dim->se ? c2c_se_entry : dim->entry;
     fmt->header = c2c_header;
     fmt->width  = c2c_width;
     fmt->collapse   = dim->se ? c2c_se_collapse : dim->cmp;
     fmt->equal  = fmt_equal;
     fmt->free   = fmt_free;
 
     return c2c_fmt;
 }
 
 static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name)
 {
     struct c2c_fmt *c2c_fmt = get_format(name);
 
     if (!c2c_fmt) {
         reset_dimensions();
         return output_field_add(hpp_list, name);
     }
 
     perf_hpp_list__column_register(hpp_list, &c2c_fmt->fmt);
     return 0;
 }
 
 static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name)
 {
     struct c2c_fmt *c2c_fmt = get_format(name);
     struct c2c_dimension *dim;
 
     if (!c2c_fmt) {
         reset_dimensions();
         return sort_dimension__add(hpp_list, name, NULL, 0);
     }
 
     dim = c2c_fmt->dim;
     if (dim == &dim_dso)
         hpp_list->dso = 1;
 
     perf_hpp_list__register_sort_field(hpp_list, &c2c_fmt->fmt);
     return 0;
 }
 
 #define PARSE_LIST(_list, _fn)                          \
     do {                                    \
         char *tmp, *tok;                        \
         ret = 0;                            \
                                         \
         if (!_list)                         \
             break;                          \
                                         \
         for (tok = strtok_r((char *)_list, ", ", &tmp);         \
                 tok; tok = strtok_r(NULL, ", ", &tmp)) {    \
             ret = _fn(hpp_list, tok);               \
             if (ret == -EINVAL) {                   \
                 pr_err("Invalid --fields key: `%s'", tok);  \
                 break;                      \
             } else if (ret == -ESRCH) {             \
                 pr_err("Unknown --fields key: `%s'", tok);  \
                 break;                      \
             }                           \
         }                               \
     } while (0)
 
 static int hpp_list__parse(struct perf_hpp_list *hpp_list,
                const char *output_,
                const char *sort_)
 {
     char *output = output_ ? strdup(output_) : NULL;
     char *sort   = sort_   ? strdup(sort_) : NULL;
     int ret;
 
     PARSE_LIST(output, c2c_hists__init_output);
     PARSE_LIST(sort,   c2c_hists__init_sort);
 
     /* copy sort keys to output fields */
     perf_hpp__setup_output_field(hpp_list);
 
     /*
      * We dont need other sorting keys other than those
      * we already specified. It also really slows down
      * the processing a lot with big number of output
      * fields, so switching this off for c2c.
      */
 
 #if 0
     /* and then copy output fields to sort keys */
     perf_hpp__append_sort_keys(&hists->list);
 #endif
 
     free(output);
     free(sort);
     return ret;
 }
 
 static int c2c_hists__init(struct c2c_hists *hists,
                const char *sort,
                int nr_header_lines)
 {
     __hists__init(&hists->hists, &hists->list);
 
     /*
      * Initialize only with sort fields, we need to resort
      * later anyway, and that's where we add output fields
      * as well.
      */
     perf_hpp_list__init(&hists->list);
 
     /* Overload number of header lines.*/
     hists->list.nr_header_lines = nr_header_lines;
 
     return hpp_list__parse(&hists->list, NULL, sort);
 }
 
 static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
                  const char *output,
                  const char *sort)
 {
     perf_hpp__reset_output_field(&c2c_hists->list);
     return hpp_list__parse(&c2c_hists->list, output, sort);
 }
 
 #define DISPLAY_LINE_LIMIT  0.001
 
 static u8 filter_display(u32 val, u32 sum)
 {
     if (sum == 0 || ((double)val / sum) < DISPLAY_LINE_LIMIT)
         return HIST_FILTER__C2C;
 
     return 0;
 }
 
 static bool he__display(struct hist_entry *he, struct c2c_stats *stats)
 {
     struct c2c_hist_entry *c2c_he;
 
     if (c2c.show_all)
         return true;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
 
     switch (c2c.display) {
     case DISPLAY_LCL_HITM:
         he->filtered = filter_display(c2c_he->stats.lcl_hitm,
                           stats->lcl_hitm);
         break;
     case DISPLAY_RMT_HITM:
         he->filtered = filter_display(c2c_he->stats.rmt_hitm,
                           stats->rmt_hitm);
         break;
     case DISPLAY_TOT_HITM:
         he->filtered = filter_display(c2c_he->stats.tot_hitm,
                           stats->tot_hitm);
         break;
     case DISPLAY_SNP_PEER:
         he->filtered = filter_display(c2c_he->stats.tot_peer,
                           stats->tot_peer);
         break;
     default:
         break;
     }
 
     return he->filtered == 0;
 }
 
 static inline bool is_valid_hist_entry(struct hist_entry *he)
 {
     struct c2c_hist_entry *c2c_he;
     bool has_record = false;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
 
     /* It's a valid entry if contains stores */
     if (c2c_he->stats.store)
         return true;
 
     switch (c2c.display) {
     case DISPLAY_LCL_HITM:
         has_record = !!c2c_he->stats.lcl_hitm;
         break;
     case DISPLAY_RMT_HITM:
         has_record = !!c2c_he->stats.rmt_hitm;
         break;
     case DISPLAY_TOT_HITM:
         has_record = !!c2c_he->stats.tot_hitm;
         break;
     case DISPLAY_SNP_PEER:
         has_record = !!c2c_he->stats.tot_peer;
     default:
         break;
     }
 
     return has_record;
 }
 
 static void set_node_width(struct c2c_hist_entry *c2c_he, int len)
 {
     struct c2c_dimension *dim;
 
     dim = &c2c.hists == c2c_he->hists ?
           &dim_dcacheline_node : &dim_offset_node;
 
     if (len > dim->width)
         dim->width = len;
 }
 
 static int set_nodestr(struct c2c_hist_entry *c2c_he)
 {
     char buf[30];
     int len;
 
     if (c2c_he->nodestr)
         return 0;
 
     if (!bitmap_empty(c2c_he->nodeset, c2c.nodes_cnt)) {
         len = bitmap_scnprintf(c2c_he->nodeset, c2c.nodes_cnt,
                       buf, sizeof(buf));
     } else {
         len = scnprintf(buf, sizeof(buf), "N/A");
     }
 
     set_node_width(c2c_he, len);
     c2c_he->nodestr = strdup(buf);
     return c2c_he->nodestr ? 0 : -ENOMEM;
 }
 
 static void calc_width(struct c2c_hist_entry *c2c_he)
 {
     struct c2c_hists *c2c_hists;
 
     c2c_hists = container_of(c2c_he->he.hists, struct c2c_hists, hists);
     hists__calc_col_len(&c2c_hists->hists, &c2c_he->he);
     set_nodestr(c2c_he);
 }
 
 static int filter_cb(struct hist_entry *he, void *arg __maybe_unused)
 {
     struct c2c_hist_entry *c2c_he;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
 
     if (c2c.show_src && !he->srcline)
         he->srcline = hist_entry__srcline(he);
 
     calc_width(c2c_he);
 
     if (!is_valid_hist_entry(he))
         he->filtered = HIST_FILTER__C2C;
 
     return 0;
 }
 
 static int resort_cl_cb(struct hist_entry *he, void *arg __maybe_unused)
 {
     struct c2c_hist_entry *c2c_he;
     struct c2c_hists *c2c_hists;
     bool display = he__display(he, &c2c.shared_clines_stats);
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     c2c_hists = c2c_he->hists;
 
     if (display && c2c_hists) {
         static unsigned int idx;
 
         c2c_he->cacheline_idx = idx++;
         calc_width(c2c_he);
 
         c2c_hists__reinit(c2c_hists, c2c.cl_output, c2c.cl_resort);
 
         hists__collapse_resort(&c2c_hists->hists, NULL);
         hists__output_resort_cb(&c2c_hists->hists, NULL, filter_cb);
     }
 
     return 0;
 }
 
 static struct c2c_header header_node_0 = HEADER_LOW("Node");
 static struct c2c_header header_node_1_hitms_stores =
         HEADER_LOW("Node{cpus %hitms %stores}");
 static struct c2c_header header_node_1_peers_stores =
         HEADER_LOW("Node{cpus %peers %stores}");
 static struct c2c_header header_node_2 = HEADER_LOW("Node{cpu list}");
 
 static void setup_nodes_header(void)
 {
     switch (c2c.node_info) {
     case 0:
         dim_node.header = header_node_0;
         break;
     case 1:
         if (c2c.display == DISPLAY_SNP_PEER)
             dim_node.header = header_node_1_peers_stores;
         else
             dim_node.header = header_node_1_hitms_stores;
         break;
     case 2:
         dim_node.header = header_node_2;
         break;
     default:
         break;
     }
 
     return;
 }
 
 static int setup_nodes(struct perf_session *session)
 {
     struct numa_node *n;
     unsigned long **nodes;
     int node, idx;
     struct perf_cpu cpu;
     int *cpu2node;
 
     if (c2c.node_info > 2)
         c2c.node_info = 2;
 
     c2c.nodes_cnt = session->header.env.nr_numa_nodes;
     c2c.cpus_cnt  = session->header.env.nr_cpus_avail;
 
     n = session->header.env.numa_nodes;
     if (!n)
         return -EINVAL;
 
     nodes = zalloc(sizeof(unsigned long *) * c2c.nodes_cnt);
     if (!nodes)
         return -ENOMEM;
 
     c2c.nodes = nodes;
 
     cpu2node = zalloc(sizeof(int) * c2c.cpus_cnt);
     if (!cpu2node)
         return -ENOMEM;
 
     for (idx = 0; idx < c2c.cpus_cnt; idx++)
         cpu2node[idx] = -1;
 
     c2c.cpu2node = cpu2node;
 
     for (node = 0; node < c2c.nodes_cnt; node++) {
         struct perf_cpu_map *map = n[node].map;
         unsigned long *set;
 
         set = bitmap_zalloc(c2c.cpus_cnt);
         if (!set)
             return -ENOMEM;
 
         nodes[node] = set;
 
         /* empty node, skip */
         if (perf_cpu_map__empty(map))
             continue;
 
         perf_cpu_map__for_each_cpu(cpu, idx, map) {
             set_bit(cpu.cpu, set);
 
             if (WARN_ONCE(cpu2node[cpu.cpu] != -1, "node/cpu topology bug"))
                 return -EINVAL;
 
             cpu2node[cpu.cpu] = node;
         }
     }
 
     setup_nodes_header();
     return 0;
 }
 
 #define HAS_HITMS(__h) ((__h)->stats.lcl_hitm || (__h)->stats.rmt_hitm)
 #define HAS_PEER(__h) ((__h)->stats.lcl_peer || (__h)->stats.rmt_peer)
 
 static int resort_shared_cl_cb(struct hist_entry *he, void *arg __maybe_unused)
 {
     struct c2c_hist_entry *c2c_he;
     c2c_he = container_of(he, struct c2c_hist_entry, he);
 
     if (HAS_HITMS(c2c_he) || HAS_PEER(c2c_he)) {
         c2c.shared_clines++;
         c2c_add_stats(&c2c.shared_clines_stats, &c2c_he->stats);
     }
 
     return 0;
 }
 
 static int hists__iterate_cb(struct hists *hists, hists__resort_cb_t cb)
 {
     struct rb_node *next = rb_first_cached(&hists->entries);
     int ret = 0;
 
     while (next) {
         struct hist_entry *he;
 
         he = rb_entry(next, struct hist_entry, rb_node);
         ret = cb(he, NULL);
         if (ret)
             break;
         next = rb_next(&he->rb_node);
     }
 
     return ret;
 }
 
 static void print_c2c__display_stats(FILE *out)
 {
     int llc_misses;
     struct c2c_stats *stats = &c2c.hists.stats;
 
     llc_misses = stats->lcl_dram +
              stats->rmt_dram +
              stats->rmt_hit +
              stats->rmt_hitm;
 
     fprintf(out, "=================================================\n");
     fprintf(out, "            Trace Event Information              \n");
     fprintf(out, "=================================================\n");
     fprintf(out, "  Total records                     : %10d\n", stats->nr_entries);
     fprintf(out, "  Locked Load/Store Operations      : %10d\n", stats->locks);
     fprintf(out, "  Load Operations                   : %10d\n", stats->load);
     fprintf(out, "  Loads - uncacheable               : %10d\n", stats->ld_uncache);
     fprintf(out, "  Loads - IO                        : %10d\n", stats->ld_io);
     fprintf(out, "  Loads - Miss                      : %10d\n", stats->ld_miss);
     fprintf(out, "  Loads - no mapping                : %10d\n", stats->ld_noadrs);
     fprintf(out, "  Load Fill Buffer Hit              : %10d\n", stats->ld_fbhit);
     fprintf(out, "  Load L1D hit                      : %10d\n", stats->ld_l1hit);
     fprintf(out, "  Load L2D hit                      : %10d\n", stats->ld_l2hit);
     fprintf(out, "  Load LLC hit                      : %10d\n", stats->ld_llchit + stats->lcl_hitm);
     fprintf(out, "  Load Local HITM                   : %10d\n", stats->lcl_hitm);
     fprintf(out, "  Load Remote HITM                  : %10d\n", stats->rmt_hitm);
     fprintf(out, "  Load Remote HIT                   : %10d\n", stats->rmt_hit);
     fprintf(out, "  Load Local DRAM                   : %10d\n", stats->lcl_dram);
     fprintf(out, "  Load Remote DRAM                  : %10d\n", stats->rmt_dram);
     fprintf(out, "  Load MESI State Exclusive         : %10d\n", stats->ld_excl);
     fprintf(out, "  Load MESI State Shared            : %10d\n", stats->ld_shared);
     fprintf(out, "  Load LLC Misses                   : %10d\n", llc_misses);
     fprintf(out, "  Load access blocked by data       : %10d\n", stats->blk_data);
     fprintf(out, "  Load access blocked by address    : %10d\n", stats->blk_addr);
     fprintf(out, "  Load HIT Local Peer               : %10d\n", stats->lcl_peer);
     fprintf(out, "  Load HIT Remote Peer              : %10d\n", stats->rmt_peer);
     fprintf(out, "  LLC Misses to Local DRAM          : %10.1f%%\n", ((double)stats->lcl_dram/(double)llc_misses) * 100.);
     fprintf(out, "  LLC Misses to Remote DRAM         : %10.1f%%\n", ((double)stats->rmt_dram/(double)llc_misses) * 100.);
     fprintf(out, "  LLC Misses to Remote cache (HIT)  : %10.1f%%\n", ((double)stats->rmt_hit /(double)llc_misses) * 100.);
     fprintf(out, "  LLC Misses to Remote cache (HITM) : %10.1f%%\n", ((double)stats->rmt_hitm/(double)llc_misses) * 100.);
     fprintf(out, "  Store Operations                  : %10d\n", stats->store);
     fprintf(out, "  Store - uncacheable               : %10d\n", stats->st_uncache);
     fprintf(out, "  Store - no mapping                : %10d\n", stats->st_noadrs);
     fprintf(out, "  Store L1D Hit                     : %10d\n", stats->st_l1hit);
     fprintf(out, "  Store L1D Miss                    : %10d\n", stats->st_l1miss);
     fprintf(out, "  Store No available memory level   : %10d\n", stats->st_na);
     fprintf(out, "  No Page Map Rejects               : %10d\n", stats->nomap);
     fprintf(out, "  Unable to parse data source       : %10d\n", stats->noparse);
 }
 
 static void print_shared_cacheline_info(FILE *out)
 {
     struct c2c_stats *stats = &c2c.shared_clines_stats;
     int hitm_cnt = stats->lcl_hitm + stats->rmt_hitm;
 
     fprintf(out, "=================================================\n");
     fprintf(out, "    Global Shared Cache Line Event Information   \n");
     fprintf(out, "=================================================\n");
     fprintf(out, "  Total Shared Cache Lines          : %10d\n", c2c.shared_clines);
     fprintf(out, "  Load HITs on shared lines         : %10d\n", stats->load);
     fprintf(out, "  Fill Buffer Hits on shared lines  : %10d\n", stats->ld_fbhit);
     fprintf(out, "  L1D hits on shared lines          : %10d\n", stats->ld_l1hit);
     fprintf(out, "  L2D hits on shared lines          : %10d\n", stats->ld_l2hit);
     fprintf(out, "  LLC hits on shared lines          : %10d\n", stats->ld_llchit + stats->lcl_hitm);
     fprintf(out, "  Load hits on peer cache or nodes  : %10d\n", stats->lcl_peer + stats->rmt_peer);
     fprintf(out, "  Locked Access on shared lines     : %10d\n", stats->locks);
     fprintf(out, "  Blocked Access on shared lines    : %10d\n", stats->blk_data + stats->blk_addr);
     fprintf(out, "  Store HITs on shared lines        : %10d\n", stats->store);
     fprintf(out, "  Store L1D hits on shared lines    : %10d\n", stats->st_l1hit);
     fprintf(out, "  Store No available memory level   : %10d\n", stats->st_na);
     fprintf(out, "  Total Merged records              : %10d\n", hitm_cnt + stats->store);
 }
 
 static void print_cacheline(struct c2c_hists *c2c_hists,
                 struct hist_entry *he_cl,
                 struct perf_hpp_list *hpp_list,
                 FILE *out)
 {
     char bf[1000];
     struct perf_hpp hpp = {
         .buf            = bf,
         .size           = 1000,
     };
     static bool once;
 
     if (!once) {
         hists__fprintf_headers(&c2c_hists->hists, out);
         once = true;
     } else {
         fprintf(out, "\n");
     }
 
     fprintf(out, "  ----------------------------------------------------------------------\n");
     __hist_entry__snprintf(he_cl, &hpp, hpp_list);
     fprintf(out, "%s\n", bf);
     fprintf(out, "  ----------------------------------------------------------------------\n");
 
     hists__fprintf(&c2c_hists->hists, false, 0, 0, 0, out, false);
 }
 
 static void print_pareto(FILE *out)
 {
     struct perf_hpp_list hpp_list;
     struct rb_node *nd;
     int ret;
     const char *cl_output;
 
     if (c2c.display != DISPLAY_SNP_PEER)
         cl_output = "cl_num,"
                 "cl_rmt_hitm,"
                 "cl_lcl_hitm,"
                 "cl_stores_l1hit,"
                 "cl_stores_l1miss,"
                 "cl_stores_na,"
                 "dcacheline";
     else
         cl_output = "cl_num,"
                 "cl_rmt_peer,"
                 "cl_lcl_peer,"
                 "cl_stores_l1hit,"
                 "cl_stores_l1miss,"
                 "cl_stores_na,"
                 "dcacheline";
 
     perf_hpp_list__init(&hpp_list);
     ret = hpp_list__parse(&hpp_list, cl_output, NULL);
 
     if (WARN_ONCE(ret, "failed to setup sort entries\n"))
         return;
 
     nd = rb_first_cached(&c2c.hists.hists.entries);
 
     for (; nd; nd = rb_next(nd)) {
         struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
         struct c2c_hist_entry *c2c_he;
 
         if (he->filtered)
             continue;
 
         c2c_he = container_of(he, struct c2c_hist_entry, he);
         print_cacheline(c2c_he->hists, he, &hpp_list, out);
     }
 }
 
 static void print_c2c_info(FILE *out, struct perf_session *session)
 {
     struct evlist *evlist = session->evlist;
     struct evsel *evsel;
     bool first = true;
 
     fprintf(out, "=================================================\n");
     fprintf(out, "                 c2c details                     \n");
     fprintf(out, "=================================================\n");
 
     evlist__for_each_entry(evlist, evsel) {
         fprintf(out, "%-36s: %s\n", first ? "  Events" : "", evsel__name(evsel));
         first = false;
     }
     fprintf(out, "  Cachelines sort on                : %s\n",
         display_str[c2c.display]);
     fprintf(out, "  Cacheline data grouping           : %s\n", c2c.cl_sort);
 }
 
 static void perf_c2c__hists_fprintf(FILE *out, struct perf_session *session)
 {
     setup_pager();
 
     print_c2c__display_stats(out);
     fprintf(out, "\n");
     print_shared_cacheline_info(out);
     fprintf(out, "\n");
     print_c2c_info(out, session);
 
     if (c2c.stats_only)
         return;
 
     fprintf(out, "\n");
     fprintf(out, "=================================================\n");
     fprintf(out, "           Shared Data Cache Line Table          \n");
     fprintf(out, "=================================================\n");
     fprintf(out, "#\n");
 
     hists__fprintf(&c2c.hists.hists, true, 0, 0, 0, stdout, true);
 
     fprintf(out, "\n");
     fprintf(out, "=================================================\n");
     fprintf(out, "      Shared Cache Line Distribution Pareto      \n");
     fprintf(out, "=================================================\n");
     fprintf(out, "#\n");
 
     print_pareto(out);
 }
 
 #ifdef HAVE_SLANG_SUPPORT
 static void c2c_browser__update_nr_entries(struct hist_browser *hb)
 {
     u64 nr_entries = 0;
     struct rb_node *nd = rb_first_cached(&hb->hists->entries);
 
     while (nd) {
         struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
 
         if (!he->filtered)
             nr_entries++;
 
         nd = rb_next(nd);
     }
 
     hb->nr_non_filtered_entries = nr_entries;
 }
 
 struct c2c_cacheline_browser {
     struct hist_browser  hb;
     struct hist_entry   *he;
 };
 
 static int
 perf_c2c_cacheline_browser__title(struct hist_browser *browser,
                   char *bf, size_t size)
 {
     struct c2c_cacheline_browser *cl_browser;
     struct hist_entry *he;
     uint64_t addr = 0;
 
     cl_browser = container_of(browser, struct c2c_cacheline_browser, hb);
     he = cl_browser->he;
 
     if (he->mem_info)
         addr = cl_address(he->mem_info->daddr.addr);
 
     scnprintf(bf, size, "Cacheline 0x%lx", addr);
     return 0;
 }
 
 static struct c2c_cacheline_browser*
 c2c_cacheline_browser__new(struct hists *hists, struct hist_entry *he)
 {
     struct c2c_cacheline_browser *browser;
 
     browser = zalloc(sizeof(*browser));
     if (browser) {
         hist_browser__init(&browser->hb, hists);
         browser->hb.c2c_filter  = true;
         browser->hb.title   = perf_c2c_cacheline_browser__title;
         browser->he     = he;
     }
 
     return browser;
 }
 
 static int perf_c2c__browse_cacheline(struct hist_entry *he)
 {
     struct c2c_hist_entry *c2c_he;
     struct c2c_hists *c2c_hists;
     struct c2c_cacheline_browser *cl_browser;
     struct hist_browser *browser;
     int key = -1;
     static const char help[] =
     " ENTER         Toggle callchains (if present) \n"
     " n             Toggle Node details info \n"
     " s             Toggle full length of symbol and source line columns \n"
     " q             Return back to cacheline list \n";
 
     if (!he)
         return 0;
 
     /* Display compact version first. */
     c2c.symbol_full = false;
 
     c2c_he = container_of(he, struct c2c_hist_entry, he);
     c2c_hists = c2c_he->hists;
 
     cl_browser = c2c_cacheline_browser__new(&c2c_hists->hists, he);
     if (cl_browser == NULL)
         return -1;
 
     browser = &cl_browser->hb;
 
     /* reset abort key so that it can get Ctrl-C as a key */
     SLang_reset_tty();
     SLang_init_tty(0, 0, 0);
 
     c2c_browser__update_nr_entries(browser);
 
     while (1) {
         key = hist_browser__run(browser, "? - help", true, 0);
 
         switch (key) {
         case 's':
             c2c.symbol_full = !c2c.symbol_full;
             break;
         case 'n':
             c2c.node_info = (c2c.node_info + 1) % 3;
             setup_nodes_header();
             break;
         case 'q':
             goto out;
         case '?':
             ui_browser__help_window(&browser->b, help);
             break;
         default:
             break;
         }
     }
 
 out:
     free(cl_browser);
     return 0;
 }
 
 static int perf_c2c_browser__title(struct hist_browser *browser,
                    char *bf, size_t size)
 {
     scnprintf(bf, size,
           "Shared Data Cache Line Table     "
           "(%lu entries, sorted on %s)",
           browser->nr_non_filtered_entries,
           display_str[c2c.display]);
     return 0;
 }
 
 static struct hist_browser*
 perf_c2c_browser__new(struct hists *hists)
 {
     struct hist_browser *browser = hist_browser__new(hists);
 
     if (browser) {
         browser->title = perf_c2c_browser__title;
         browser->c2c_filter = true;
     }
 
     return browser;
 }
 
 static int perf_c2c__hists_browse(struct hists *hists)
 {
     struct hist_browser *browser;
     int key = -1;
     static const char help[] =
     " d             Display cacheline details \n"
     " ENTER         Toggle callchains (if present) \n"
     " q             Quit \n";
 
     browser = perf_c2c_browser__new(hists);
     if (browser == NULL)
         return -1;
 
     /* reset abort key so that it can get Ctrl-C as a key */
     SLang_reset_tty();
     SLang_init_tty(0, 0, 0);
 
     c2c_browser__update_nr_entries(browser);
 
     while (1) {
         key = hist_browser__run(browser, "? - help", true, 0);
 
         switch (key) {
         case 'q':
             goto out;
         case 'd':
             perf_c2c__browse_cacheline(browser->he_selection);
             break;
         case '?':
             ui_browser__help_window(&browser->b, help);
             break;
         default:
             break;
         }
     }
 
 out:
     hist_browser__delete(browser);
     return 0;
 }
 
 static void perf_c2c_display(struct perf_session *session)
 {
     if (use_browser == 0)
         perf_c2c__hists_fprintf(stdout, session);
     else
         perf_c2c__hists_browse(&c2c.hists.hists);
 }
 #else
 static void perf_c2c_display(struct perf_session *session)
 {
     use_browser = 0;
     perf_c2c__hists_fprintf(stdout, session);
 }
 #endif /* HAVE_SLANG_SUPPORT */
 
 static char *fill_line(const char *orig, int len)
 {
     int i, j, olen = strlen(orig);
     char *buf;
 
     buf = zalloc(len + 1);
     if (!buf)
         return NULL;
 
     j = len / 2 - olen / 2;
 
     for (i = 0; i < j - 1; i++)
         buf[i] = '-';
 
     buf[i++] = ' ';
 
     strcpy(buf + i, orig);
 
     i += olen;
 
     buf[i++] = ' ';
 
     for (; i < len; i++)
         buf[i] = '-';
 
     return buf;
 }
 
 static int ui_quirks(void)
 {
     const char *nodestr = "Data address";
     char *buf;
 
     if (!c2c.use_stdio) {
         dim_offset.width  = 5;
         dim_offset.header = header_offset_tui;
         nodestr = "CL";
     }
 
     dim_percent_costly_snoop.header = percent_costly_snoop_header[c2c.display];
 
     /* Fix the zero line for dcacheline column. */
     buf = fill_line("Cacheline", dim_dcacheline.width +
                      dim_dcacheline_node.width +
                      dim_dcacheline_count.width + 4);
     if (!buf)
         return -ENOMEM;
 
     dim_dcacheline.header.line[0].text = buf;
 
     /* Fix the zero line for offset column. */
     buf = fill_line(nodestr, dim_offset.width +
                      dim_offset_node.width +
                  dim_dcacheline_count.width + 4);
     if (!buf)
         return -ENOMEM;
 
     dim_offset.header.line[0].text = buf;
 
     return 0;
 }
 
 #define CALLCHAIN_DEFAULT_OPT  "graph,0.5,caller,function,percent"
 
 const char callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
                 CALLCHAIN_REPORT_HELP
                 "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
 
 static int
 parse_callchain_opt(const struct option *opt, const char *arg, int unset)
 {
     struct callchain_param *callchain = opt->value;
 
     callchain->enabled = !unset;
     /*
      * --no-call-graph
      */
     if (unset) {
         symbol_conf.use_callchain = false;
         callchain->mode = CHAIN_NONE;
         return 0;
     }
 
     return parse_callchain_report_opt(arg);
 }
 
 static int setup_callchain(struct evlist *evlist)
 {
     u64 sample_type = evlist__combined_sample_type(evlist);
     enum perf_call_graph_mode mode = CALLCHAIN_NONE;
 
     if ((sample_type & PERF_SAMPLE_REGS_USER) &&
         (sample_type & PERF_SAMPLE_STACK_USER)) {
         mode = CALLCHAIN_DWARF;
         dwarf_callchain_users = true;
     } else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
         mode = CALLCHAIN_LBR;
     else if (sample_type & PERF_SAMPLE_CALLCHAIN)
         mode = CALLCHAIN_FP;
 
     if (!callchain_param.enabled &&
         callchain_param.mode != CHAIN_NONE &&
         mode != CALLCHAIN_NONE) {
         symbol_conf.use_callchain = true;
         if (callchain_register_param(&callchain_param) < 0) {
             ui__error("Can't register callchain params.\n");
             return -EINVAL;
         }
     }
 
     if (c2c.stitch_lbr && (mode != CALLCHAIN_LBR)) {
         ui__warning("Can't find LBR callchain. Switch off --stitch-lbr.\n"
                 "Please apply --call-graph lbr when recording.\n");
         c2c.stitch_lbr = false;
     }
 
     callchain_param.record_mode = mode;
     callchain_param.min_percent = 0;
     return 0;
 }
 
 static int setup_display(const char *str)
 {
     const char *display = str;
 
     if (!strcmp(display, "tot"))
         c2c.display = DISPLAY_TOT_HITM;
     else if (!strcmp(display, "rmt"))
         c2c.display = DISPLAY_RMT_HITM;
     else if (!strcmp(display, "lcl"))
         c2c.display = DISPLAY_LCL_HITM;
     else if (!strcmp(display, "peer"))
         c2c.display = DISPLAY_SNP_PEER;
     else {
         pr_err("failed: unknown display type: %s\n", str);
         return -1;
     }
 
     return 0;
 }
 
 #define for_each_token(__tok, __buf, __sep, __tmp)      \
     for (__tok = strtok_r(__buf, __sep, &__tmp); __tok; \
          __tok = strtok_r(NULL,  __sep, &__tmp))
 
 static int build_cl_output(char *cl_sort, bool no_source)
 {
     char *tok, *tmp, *buf = strdup(cl_sort);
     bool add_pid   = false;
     bool add_tid   = false;
     bool add_iaddr = false;
     bool add_sym   = false;
     bool add_dso   = false;
     bool add_src   = false;
     int ret = 0;
 
     if (!buf)
         return -ENOMEM;
 
     for_each_token(tok, buf, ",", tmp) {
         if (!strcmp(tok, "tid")) {
             add_tid = true;
         } else if (!strcmp(tok, "pid")) {
             add_pid = true;
         } else if (!strcmp(tok, "iaddr")) {
             add_iaddr = true;
             add_sym   = true;
             add_dso   = true;
             add_src   = no_source ? false : true;
         } else if (!strcmp(tok, "dso")) {
             add_dso = true;
         } else if (strcmp(tok, "offset")) {
             pr_err("unrecognized sort token: %s\n", tok);
             ret = -EINVAL;
             goto err;
         }
     }
 
     if (asprintf(&c2c.cl_output,
         "%s%s%s%s%s%s%s%s%s%s%s%s",
         c2c.use_stdio ? "cl_num_empty," : "",
         c2c.display == DISPLAY_SNP_PEER ? "percent_rmt_peer,"
                           "percent_lcl_peer," :
                           "percent_rmt_hitm,"
                           "percent_lcl_hitm,",
         "percent_stores_l1hit,"
         "percent_stores_l1miss,"
         "percent_stores_na,"
         "offset,offset_node,dcacheline_count,",
         add_pid   ? "pid," : "",
         add_tid   ? "tid," : "",
         add_iaddr ? "iaddr," : "",
         c2c.display == DISPLAY_SNP_PEER ? "mean_rmt_peer,"
                           "mean_lcl_peer," :
                           "mean_rmt,"
                           "mean_lcl,",
         "mean_load,"
         "tot_recs,"
         "cpucnt,",
         add_sym ? "symbol," : "",
         add_dso ? "dso," : "",
         add_src ? "cl_srcline," : "",
         "node") < 0) {
         ret = -ENOMEM;
         goto err;
     }
 
     c2c.show_src = add_src;
 err:
     free(buf);
     return ret;
 }
 
 static int setup_coalesce(const char *coalesce, bool no_source)
 {
     const char *c = coalesce ?: coalesce_default;
     const char *sort_str = NULL;
 
     if (asprintf(&c2c.cl_sort, "offset,%s", c) < 0)
         return -ENOMEM;
 
     if (build_cl_output(c2c.cl_sort, no_source))
         return -1;
 
     if (c2c.display == DISPLAY_TOT_HITM)
         sort_str = "tot_hitm";
     else if (c2c.display == DISPLAY_RMT_HITM)
         sort_str = "rmt_hitm,lcl_hitm";
     else if (c2c.display == DISPLAY_LCL_HITM)
         sort_str = "lcl_hitm,rmt_hitm";
     else if (c2c.display == DISPLAY_SNP_PEER)
         sort_str = "tot_peer";
 
     if (asprintf(&c2c.cl_resort, "offset,%s", sort_str) < 0)
         return -ENOMEM;
 
     pr_debug("coalesce sort   fields: %s\n", c2c.cl_sort);
     pr_debug("coalesce resort fields: %s\n", c2c.cl_resort);
     pr_debug("coalesce output fields: %s\n", c2c.cl_output);
     return 0;
 }
 
 static int perf_c2c__report(int argc, const char **argv)
 {
     struct itrace_synth_opts itrace_synth_opts = {
         .set = true,
         .mem = true,    /* Only enable memory event */
         .default_no_sample = true,
     };
 
     struct perf_session *session;
     struct ui_progress prog;
     struct perf_data data = {
         .mode = PERF_DATA_MODE_READ,
     };
     char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
     const char *display = NULL;
     const char *coalesce = NULL;
     bool no_source = false;
     const struct option options[] = {
     OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
            "file", "vmlinux pathname"),
     OPT_STRING('i', "input", &input_name, "file",
            "the input file to process"),
     OPT_INCR('N', "node-info", &c2c.node_info,
          "show extra node info in report (repeat for more info)"),
     OPT_BOOLEAN(0, "stdio", &c2c.use_stdio, "Use the stdio interface"),
     OPT_BOOLEAN(0, "stats", &c2c.stats_only,
             "Display only statistic tables (implies --stdio)"),
     OPT_BOOLEAN(0, "full-symbols", &c2c.symbol_full,
             "Display full length of symbols"),
     OPT_BOOLEAN(0, "no-source", &no_source,
             "Do not display Source Line column"),
     OPT_BOOLEAN(0, "show-all", &c2c.show_all,
             "Show all captured HITM lines."),
     OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
                  "print_type,threshold[,print_limit],order,sort_key[,branch],value",
                  callchain_help, &parse_callchain_opt,
                  callchain_default_opt),
     OPT_STRING('d', "display", &display, "Switch HITM output type", "tot,lcl,rmt,peer"),
     OPT_STRING('c', "coalesce", &coalesce, "coalesce fields",
            "coalesce fields: pid,tid,iaddr,dso"),
     OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
     OPT_BOOLEAN(0, "stitch-lbr", &c2c.stitch_lbr,
             "Enable LBR callgraph stitching approach"),
     OPT_PARENT(c2c_options),
     OPT_END()
     };
     int err = 0;
     const char *output_str, *sort_str = NULL;
 
     argc = parse_options(argc, argv, options, report_c2c_usage,
                  PARSE_OPT_STOP_AT_NON_OPTION);
     if (argc)
         usage_with_options(report_c2c_usage, options);
 
 #ifndef HAVE_SLANG_SUPPORT
     c2c.use_stdio = true;
 #endif
 
     if (c2c.stats_only)
         c2c.use_stdio = true;
 
     err = symbol__validate_sym_arguments();
     if (err)
         goto out;
 
     if (!input_name || !strlen(input_name))
         input_name = "perf.data";
 
     data.path  = input_name;
     data.force = symbol_conf.force;
 
     session = perf_session__new(&data, &c2c.tool);
     if (IS_ERR(session)) {
         err = PTR_ERR(session);
         pr_debug("Error creating perf session\n");
         goto out;
     }
 
     /*
      * Use the 'tot' as default display type if user doesn't specify it;
      * since Arm64 platform doesn't support HITMs flag, use 'peer' as the
      * default display type.
      */
     if (!display) {
         if (!strcmp(perf_env__arch(&session->header.env), "arm64"))
             display = "peer";
         else
             display = "tot";
     }
 
     err = setup_display(display);
     if (err)
         goto out_session;
 
     err = setup_coalesce(coalesce, no_source);
     if (err) {
         pr_debug("Failed to initialize hists\n");
         goto out_session;
     }
 
     err = c2c_hists__init(&c2c.hists, "dcacheline", 2);
     if (err) {
         pr_debug("Failed to initialize hists\n");
         goto out_session;
     }
 
     session->itrace_synth_opts = &itrace_synth_opts;
 
     err = setup_nodes(session);
     if (err) {
         pr_err("Failed setup nodes\n");
         goto out_session;
     }
 
     err = mem2node__init(&c2c.mem2node, &session->header.env);
     if (err)
         goto out_session;
 
     err = setup_callchain(session->evlist);
     if (err)
         goto out_mem2node;
 
     if (symbol__init(&session->header.env) < 0)
         goto out_mem2node;
 
     /* No pipe support at the moment. */
     if (perf_data__is_pipe(session->data)) {
         pr_debug("No pipe support at the moment.\n");
         goto out_mem2node;
     }
 
     if (c2c.use_stdio)
         use_browser = 0;
     else
         use_browser = 1;
 
     setup_browser(false);
 
     err = perf_session__process_events(session);
     if (err) {
         pr_err("failed to process sample\n");
         goto out_mem2node;
     }
 
     if (c2c.display != DISPLAY_SNP_PEER)
         output_str = "cl_idx,"
                  "dcacheline,"
                  "dcacheline_node,"
                  "dcacheline_count,"
                  "percent_costly_snoop,"
                  "tot_hitm,lcl_hitm,rmt_hitm,"
                  "tot_recs,"
                  "tot_loads,"
                  "tot_stores,"
                  "stores_l1hit,stores_l1miss,stores_na,"
                  "ld_fbhit,ld_l1hit,ld_l2hit,"
                  "ld_lclhit,lcl_hitm,"
                  "ld_rmthit,rmt_hitm,"
                  "dram_lcl,dram_rmt";
     else
         output_str = "cl_idx,"
                  "dcacheline,"
                  "dcacheline_node,"
                  "dcacheline_count,"
                  "percent_costly_snoop,"
                  "tot_peer,lcl_peer,rmt_peer,"
                  "tot_recs,"
                  "tot_loads,"
                  "tot_stores,"
                  "stores_l1hit,stores_l1miss,stores_na,"
                  "ld_fbhit,ld_l1hit,ld_l2hit,"
                  "ld_lclhit,lcl_hitm,"
                  "ld_rmthit,rmt_hitm,"
                  "dram_lcl,dram_rmt";
 
     if (c2c.display == DISPLAY_TOT_HITM)
         sort_str = "tot_hitm";
     else if (c2c.display == DISPLAY_RMT_HITM)
         sort_str = "rmt_hitm";
     else if (c2c.display == DISPLAY_LCL_HITM)
         sort_str = "lcl_hitm";
     else if (c2c.display == DISPLAY_SNP_PEER)
         sort_str = "tot_peer";
 
     c2c_hists__reinit(&c2c.hists, output_str, sort_str);
 
     ui_progress__init(&prog, c2c.hists.hists.nr_entries, "Sorting...");
 
     hists__collapse_resort(&c2c.hists.hists, NULL);
     hists__output_resort_cb(&c2c.hists.hists, &prog, resort_shared_cl_cb);
     hists__iterate_cb(&c2c.hists.hists, resort_cl_cb);
 
     ui_progress__finish();
 
     if (ui_quirks()) {
         pr_err("failed to setup UI\n");
         goto out_mem2node;
     }
 
     perf_c2c_display(session);
 
 out_mem2node:
     mem2node__exit(&c2c.mem2node);
 out_session:
     perf_session__delete(session);
 out:
     return err;
 }
 
 static int parse_record_events(const struct option *opt,
                    const char *str, int unset __maybe_unused)
 {
     bool *event_set = (bool *) opt->value;
 
     if (!strcmp(str, "list")) {
         perf_mem_events__list();
         exit(0);
     }
     if (perf_mem_events__parse(str))
         exit(-1);
 
     *event_set = true;
     return 0;
 }
 
 
 static const char * const __usage_record[] = {
     "perf c2c record [<options>] [<command>]",
     "perf c2c record [<options>] -- <command> [<options>]",
     NULL
 };
 
 static const char * const *record_mem_usage = __usage_record;
 
 static int perf_c2c__record(int argc, const char **argv)
 {
     int rec_argc, i = 0, j, rec_tmp_nr = 0;
     const char **rec_argv;
     char **rec_tmp;
     int ret;
     bool all_user = false, all_kernel = false;
     bool event_set = false;
     struct perf_mem_event *e;
     struct option options[] = {
     OPT_CALLBACK('e', "event", &event_set, "event",
              "event selector. Use 'perf c2c record -e list' to list available events",
              parse_record_events),
     OPT_BOOLEAN('u', "all-user", &all_user, "collect only user level data"),
     OPT_BOOLEAN('k', "all-kernel", &all_kernel, "collect only kernel level data"),
     OPT_UINTEGER('l', "ldlat", &perf_mem_events__loads_ldlat, "setup mem-loads latency"),
     OPT_PARENT(c2c_options),
     OPT_END()
     };
 
     if (perf_mem_events__init()) {
         pr_err("failed: memory events not supported\n");
         return -1;
     }
 
     argc = parse_options(argc, argv, options, record_mem_usage,
                  PARSE_OPT_KEEP_UNKNOWN);
 
     if (!perf_pmu__has_hybrid())
         rec_argc = argc + 11; /* max number of arguments */
     else
         rec_argc = argc + 11 * perf_pmu__hybrid_pmu_num();
 
     rec_argv = calloc(rec_argc + 1, sizeof(char *));
     if (!rec_argv)
         return -1;
 
     rec_tmp = calloc(rec_argc + 1, sizeof(char *));
     if (!rec_tmp) {
         free(rec_argv);
         return -1;
     }
 
     rec_argv[i++] = "record";
 
     if (!event_set) {
         e = perf_mem_events__ptr(PERF_MEM_EVENTS__LOAD_STORE);
         /*
          * The load and store operations are required, use the event
          * PERF_MEM_EVENTS__LOAD_STORE if it is supported.
          */
         if (e->tag) {
             e->record = true;
         } else {
             e = perf_mem_events__ptr(PERF_MEM_EVENTS__LOAD);
             e->record = true;
 
             e = perf_mem_events__ptr(PERF_MEM_EVENTS__STORE);
             e->record = true;
         }
     }
 
     e = perf_mem_events__ptr(PERF_MEM_EVENTS__LOAD);
     if (e->record)
         rec_argv[i++] = "-W";
 
     rec_argv[i++] = "-d";
     rec_argv[i++] = "--phys-data";
     rec_argv[i++] = "--sample-cpu";
 
     ret = perf_mem_events__record_args(rec_argv, &i, rec_tmp, &rec_tmp_nr);
     if (ret)
         goto out;
 
     if (all_user)
         rec_argv[i++] = "--all-user";
 
     if (all_kernel)
         rec_argv[i++] = "--all-kernel";
 
     for (j = 0; j < argc; j++, i++)
         rec_argv[i] = argv[j];
 
     if (verbose > 0) {
         pr_debug("calling: ");
 
         j = 0;
 
         while (rec_argv[j]) {
             pr_debug("%s ", rec_argv[j]);
             j++;
         }
         pr_debug("\n");
     }
 
     ret = cmd_record(i, rec_argv);
 out:
     for (i = 0; i < rec_tmp_nr; i++)
         free(rec_tmp[i]);
 
     free(rec_tmp);
     free(rec_argv);
     return ret;
 }
 
 int cmd_c2c(int argc, const char **argv)
 {
     argc = parse_options(argc, argv, c2c_options, c2c_usage,
                  PARSE_OPT_STOP_AT_NON_OPTION);
 
     if (!argc)
         usage_with_options(c2c_usage, c2c_options);
 
     if (strlen(argv[0]) > 2 && strstarts("record", argv[0])) {
         return perf_c2c__record(argc, argv);
     } else if (strlen(argv[0]) > 2 && strstarts("report", argv[0])) {
         return perf_c2c__report(argc, argv);
     } else {
         usage_with_options(c2c_usage, c2c_options);
     }
 
     return 0;
 }