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-rw-r--r--tools/perf/tests/mem.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/tools/perf/tests/mem.c b/tools/perf/tests/mem.c
new file mode 100644
index 000000000..673a11a6c
--- /dev/null
+++ b/tools/perf/tests/mem.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "util/map_symbol.h"
+#include "util/mem-events.h"
+#include "util/symbol.h"
+#include "linux/perf_event.h"
+#include "util/debug.h"
+#include "tests.h"
+#include <string.h>
+
+static int check(union perf_mem_data_src data_src,
+ const char *string)
+{
+ char out[100];
+ char failure[100];
+ struct mem_info mi = { .data_src = data_src };
+
+ int n;
+
+ n = perf_mem__snp_scnprintf(out, sizeof out, &mi);
+ n += perf_mem__lvl_scnprintf(out + n, sizeof out - n, &mi);
+ scnprintf(failure, sizeof failure, "unexpected %s", out);
+ TEST_ASSERT_VAL(failure, !strcmp(string, out));
+ return 0;
+}
+
+int test__mem(struct test *text __maybe_unused, int subtest __maybe_unused)
+{
+ int ret = 0;
+ union perf_mem_data_src src;
+
+ memset(&src, 0, sizeof(src));
+
+ src.mem_lvl = PERF_MEM_LVL_HIT;
+ src.mem_lvl_num = 4;
+
+ ret |= check(src, "N/AL4 hit");
+
+ src.mem_remote = 1;
+
+ ret |= check(src, "N/ARemote L4 hit");
+
+ src.mem_lvl = PERF_MEM_LVL_MISS;
+ src.mem_lvl_num = PERF_MEM_LVLNUM_PMEM;
+ src.mem_remote = 0;
+
+ ret |= check(src, "N/APMEM miss");
+
+ src.mem_remote = 1;
+
+ ret |= check(src, "N/ARemote PMEM miss");
+
+ src.mem_snoopx = PERF_MEM_SNOOPX_FWD;
+ src.mem_lvl_num = PERF_MEM_LVLNUM_RAM;
+
+ ret |= check(src , "FwdRemote RAM miss");
+
+ return ret;
+}