1 | // SPDX-License-Identifier: GPL-2.0 |
2 | #include "arch-tests.h" |
3 | #include "linux/perf_event.h" |
4 | #include "tests/tests.h" |
5 | #include "pmu.h" |
6 | #include "pmus.h" |
7 | #include "../perf-sys.h" |
8 | #include "debug.h" |
9 | |
10 | #define NR_SUB_TESTS 5 |
11 | |
12 | static struct sub_tests { |
13 | int type; |
14 | unsigned long config; |
15 | bool valid; |
16 | } sub_tests[NR_SUB_TESTS] = { |
17 | { PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, true }, |
18 | { PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS, false }, |
19 | { PERF_TYPE_RAW, 0x076, true }, |
20 | { PERF_TYPE_RAW, 0x0C1, true }, |
21 | { PERF_TYPE_RAW, 0x012, false }, |
22 | }; |
23 | |
24 | static int event_open(int type, unsigned long config) |
25 | { |
26 | struct perf_event_attr attr; |
27 | |
28 | memset(&attr, 0, sizeof(struct perf_event_attr)); |
29 | attr.type = type; |
30 | attr.size = sizeof(struct perf_event_attr); |
31 | attr.config = config; |
32 | attr.disabled = 1; |
33 | attr.precise_ip = 1; |
34 | attr.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; |
35 | attr.sample_period = 100000; |
36 | |
37 | return sys_perf_event_open(&attr, -1, 0, -1, 0); |
38 | } |
39 | |
40 | int test__amd_ibs_via_core_pmu(struct test_suite *test __maybe_unused, |
41 | int subtest __maybe_unused) |
42 | { |
43 | struct perf_pmu *ibs_pmu; |
44 | int ret = TEST_OK; |
45 | int fd, i; |
46 | |
47 | ibs_pmu = perf_pmus__find("ibs_op" ); |
48 | if (!ibs_pmu) |
49 | return TEST_SKIP; |
50 | |
51 | for (i = 0; i < NR_SUB_TESTS; i++) { |
52 | fd = event_open(type: sub_tests[i].type, config: sub_tests[i].config); |
53 | pr_debug("type: 0x%x, config: 0x%lx, fd: %d - " , sub_tests[i].type, |
54 | sub_tests[i].config, fd); |
55 | if ((sub_tests[i].valid && fd == -1) || |
56 | (!sub_tests[i].valid && fd > 0)) { |
57 | pr_debug("Fail\n" ); |
58 | ret = TEST_FAIL; |
59 | } else { |
60 | pr_debug("Pass\n" ); |
61 | } |
62 | |
63 | if (fd > 0) |
64 | close(fd); |
65 | } |
66 | |
67 | return ret; |
68 | } |
69 | |