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authorJiri Olsa <jolsa@kernel.org>2016-02-24 11:46:48 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-02-24 16:20:45 +0300
commit2c07af13dcd4d971578041b50598f1269b33e68a (patch)
tree738fae5d702c8f9ccbd647ae95b9cd5bcbc77348 /tools/perf/util/mem-events.c
parent071e9a1e12dceaec6f9d3ffe6e77ee68364166d6 (diff)
downloadlinux-2c07af13dcd4d971578041b50598f1269b33e68a.tar.xz
perf tools: Introduce perf_mem__snp_scnprintf function
Move meminfo's snp 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/1456303616-26926-8-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/mem-events.c')
-rw-r--r--tools/perf/util/mem-events.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index bddb1217d129..d03edc2ec607 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -183,3 +183,37 @@ void perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
if (miss)
strncat(out, " miss", sz - l);
}
+
+static const char * const snoop_access[] = {
+ "N/A",
+ "None",
+ "Miss",
+ "Hit",
+ "HitM",
+};
+
+void perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
+{
+ size_t i, l = 0;
+ u64 m = PERF_MEM_SNOOP_NA;
+
+ sz -= 1; /* -1 for null termination */
+ out[0] = '\0';
+
+ if (mem_info)
+ m = mem_info->data_src.mem_snoop;
+
+ for (i = 0; m && i < ARRAY_SIZE(snoop_access); i++, m >>= 1) {
+ if (!(m & 0x1))
+ continue;
+ if (l) {
+ strcat(out, " or ");
+ l += 4;
+ }
+ strncat(out, snoop_access[i], sz - l);
+ l += strlen(snoop_access[i]);
+ }
+
+ if (*out == '\0')
+ strcpy(out, "N/A");
+}