perf c2c: Introduce c2c_decode_stats function

Introducing c2c_decode_stats function, which decodes
data_src data into new struct c2c_stats.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Original-patch-by: Dick Fowles <rfowles@redhat.com>
Original-patch-by: Don Zickus <dzickus@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1474558645-19956-3-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/mem-events.h

@@ -2,6 +2,10 @@
 #define __PERF_MEM_EVENTS_H
 
 #include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <linux/types.h>
+#include "stat.h"
 
 struct perf_mem_event {
 	bool		record;
@@ -33,4 +37,36 @@ int perf_mem__lck_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
 
 int perf_script__meminfo_scnprintf(char *bf, size_t size, struct mem_info *mem_info);
 
+struct c2c_stats {
+	u32	nr_entries;
+
+	u32	locks;               /* count of 'lock' transactions */
+	u32	store;               /* count of all stores in trace */
+	u32	st_uncache;          /* stores to uncacheable address */
+	u32	st_noadrs;           /* cacheable store with no address */
+	u32	st_l1hit;            /* count of stores that hit L1D */
+	u32	st_l1miss;           /* count of stores that miss L1D */
+	u32	load;                /* count of all loads in trace */
+	u32	ld_excl;             /* exclusive loads, rmt/lcl DRAM - snp none/miss */
+	u32	ld_shared;           /* shared loads, rmt/lcl DRAM - snp hit */
+	u32	ld_uncache;          /* loads to uncacheable address */
+	u32	ld_io;               /* loads to io address */
+	u32	ld_miss;             /* loads miss */
+	u32	ld_noadrs;           /* cacheable load with no address */
+	u32	ld_fbhit;            /* count of loads hitting Fill Buffer */
+	u32	ld_l1hit;            /* count of loads that hit L1D */
+	u32	ld_l2hit;            /* count of loads that hit L2D */
+	u32	ld_llchit;           /* count of loads that hit LLC */
+	u32	lcl_hitm;            /* count of loads with local HITM  */
+	u32	rmt_hitm;            /* count of loads with remote HITM */
+	u32	rmt_hit;             /* count of loads with remote hit clean; */
+	u32	lcl_dram;            /* count of loads miss to local DRAM */
+	u32	rmt_dram;            /* count of loads miss to remote DRAM */
+	u32	nomap;               /* count of load/stores with no phys adrs */
+	u32	noparse;             /* count of unparsable data sources */
+};
+
+struct hist_entry;
+int c2c_decode_stats(struct c2c_stats *stats, struct mem_info *mi);
+
 #endif /* __PERF_MEM_EVENTS_H */