perf tools: Introduce perf_mem__tlb_scnprintf function

Move meminfo's tlb display function into mem-events.c object, so it
could be reused later from script code.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1456303616-26926-6-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index 2330db5..4be3eb7 100644 (file)
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -8,6 +8,7 @@
 #include <api/fs/fs.h>
 #include "mem-events.h"
 #include "debug.h"
+#include "symbol.h"
 
 #define E(t, n, s) { .tag = t, .name = n, .sysfs_name = s }
 
@@ -83,3 +84,49 @@ int perf_mem_events__init(void)
 
        return found ? 0 : -ENOENT;
 }
+
+static const char * const tlb_access[] = {
+       "N/A",
+       "HIT",
+       "MISS",
+       "L1",
+       "L2",
+       "Walker",
+       "Fault",
+};
+
+void perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
+{
+       size_t l = 0, i;
+       u64 m = PERF_MEM_TLB_NA;
+       u64 hit, miss;
+
+       sz -= 1; /* -1 for null termination */
+       out[0] = '\0';
+
+       if (mem_info)
+               m = mem_info->data_src.mem_dtlb;
+
+       hit = m & PERF_MEM_TLB_HIT;
+       miss = m & PERF_MEM_TLB_MISS;
+
+       /* already taken care of */
+       m &= ~(PERF_MEM_TLB_HIT|PERF_MEM_TLB_MISS);
+
+       for (i = 0; m && i < ARRAY_SIZE(tlb_access); i++, m >>= 1) {
+               if (!(m & 0x1))
+                       continue;
+               if (l) {
+                       strcat(out, " or ");
+                       l += 4;
+               }
+               strncat(out, tlb_access[i], sz - l);
+               l += strlen(tlb_access[i]);
+       }
+       if (*out == '\0')
+               strcpy(out, "N/A");
+       if (hit)
+               strncat(out, " hit", sz - l);
+       if (miss)
+               strncat(out, " miss", sz - l);
+}

diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h
index 2a91b95..d8fb8e1 100644 (file)
--- a/tools/perf/util/mem-events.h
+++ b/tools/perf/util/mem-events.h
@@ -23,4 +23,7 @@ int perf_mem_events__parse(const char *str);
 int perf_mem_events__init(void);
 
 char *perf_mem_events__name(int i);
+
+struct mem_info;
+void perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
 #endif /* __PERF_MEM_EVENTS_H */

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 5388f79..160df20 100644 (file)
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -6,6 +6,7 @@
 #include "evsel.h"
 #include "evlist.h"
 #include <traceevent/event-parse.h>
+#include "mem-events.h"
 
 regex_t                parent_regex;
 const char     default_parent_pattern[] = "^sys_|^do_page_fault";
@@ -829,53 +830,12 @@ sort__tlb_cmp(struct hist_entry *left, struct hist_entry *right)
        return (int64_t)(data_src_r.mem_dtlb - data_src_l.mem_dtlb);
 }
 
-static const char * const tlb_access[] = {
-       "N/A",
-       "HIT",
-       "MISS",
-       "L1",
-       "L2",
-       "Walker",
-       "Fault",
-};
-
 static int hist_entry__tlb_snprintf(struct hist_entry *he, char *bf,
                                    size_t size, unsigned int width)
 {
        char out[64];
-       size_t sz = sizeof(out) - 1; /* -1 for null termination */
-       size_t l = 0, i;
-       u64 m = PERF_MEM_TLB_NA;
-       u64 hit, miss;
-
-       out[0] = '\0';
-
-       if (he->mem_info)
-               m = he->mem_info->data_src.mem_dtlb;
-
-       hit = m & PERF_MEM_TLB_HIT;
-       miss = m & PERF_MEM_TLB_MISS;
-
-       /* already taken care of */
-       m &= ~(PERF_MEM_TLB_HIT|PERF_MEM_TLB_MISS);
-
-       for (i = 0; m && i < ARRAY_SIZE(tlb_access); i++, m >>= 1) {
-               if (!(m & 0x1))
-                       continue;
-               if (l) {
-                       strcat(out, " or ");
-                       l += 4;
-               }
-               strncat(out, tlb_access[i], sz - l);
-               l += strlen(tlb_access[i]);
-       }
-       if (*out == '\0')
-               strcpy(out, "N/A");
-       if (hit)
-               strncat(out, " hit", sz - l);
-       if (miss)
-               strncat(out, " miss", sz - l);
 
+       perf_mem__tlb_scnprintf(out, sizeof(out), he->mem_info);
        return repsep_snprintf(bf, size, "%-*s", width, out);
 }