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Linux/tools/perf/builtin-c2c.c

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

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