1// SPDX-License-Identifier: GPL-2.0
2#include "util/map_symbol.h"
3#include "util/mem-events.h"
4#include "util/symbol.h"
5#include "linux/perf_event.h"
6#include "util/debug.h"
7#include "tests.h"
8#include <string.h>
9
10static int check(union perf_mem_data_src data_src,
11 const char *string)
12{
13 char out[100];
14 char failure[100];
15 struct mem_info mi = { .data_src = data_src };
16
17 int n;
18
19 n = perf_mem__snp_scnprintf(out, sizeof out, &mi);
20 n += perf_mem__lvl_scnprintf(out + n, sizeof out - n, &mi);
21 scnprintf(buf: failure, size: sizeof failure, fmt: "unexpected %s", out);
22 TEST_ASSERT_VAL(failure, !strcmp(string, out));
23 return 0;
24}
25
26static int test__mem(struct test_suite *text __maybe_unused, int subtest __maybe_unused)
27{
28 int ret = 0;
29 union perf_mem_data_src src;
30
31 memset(&src, 0, sizeof(src));
32
33 src.mem_lvl = PERF_MEM_LVL_HIT;
34 src.mem_lvl_num = 4;
35
36 ret |= check(data_src: src, string: "N/AL4 hit");
37
38 src.mem_remote = 1;
39
40 ret |= check(data_src: src, string: "N/ARemote L4 hit");
41
42 src.mem_lvl = PERF_MEM_LVL_MISS;
43 src.mem_lvl_num = PERF_MEM_LVLNUM_PMEM;
44 src.mem_remote = 0;
45
46 ret |= check(data_src: src, string: "N/APMEM miss");
47
48 src.mem_remote = 1;
49
50 ret |= check(data_src: src, string: "N/ARemote PMEM miss");
51
52 src.mem_snoopx = PERF_MEM_SNOOPX_FWD;
53 src.mem_lvl_num = PERF_MEM_LVLNUM_RAM;
54
55 ret |= check(data_src: src , string: "FwdRemote RAM miss");
56
57 return ret;
58}
59
60DEFINE_SUITE("Test data source output", mem);
61

source code of linux/tools/perf/tests/mem.c