1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * Copyright 2022, Athira Rajeev, IBM Corp. |
4 | */ |
5 | |
6 | #include <stdio.h> |
7 | #include <sys/prctl.h> |
8 | #include <limits.h> |
9 | #include "../event.h" |
10 | #include "../sampling_tests/misc.h" |
11 | |
12 | /* |
13 | * Testcase to ensure that using invalid event in generic |
14 | * event for PERF_TYPE_HARDWARE should fail |
15 | */ |
16 | |
17 | static int generic_events_valid_test(void) |
18 | { |
19 | struct event event; |
20 | |
21 | /* Check for platform support for the test */ |
22 | SKIP_IF(platform_check_for_tests()); |
23 | |
24 | /* generic events is different in compat_mode */ |
25 | SKIP_IF(check_for_generic_compat_pmu()); |
26 | |
27 | /* |
28 | * Invalid generic events in power10: |
29 | * - PERF_COUNT_HW_BUS_CYCLES |
30 | * - PERF_COUNT_HW_STALLED_CYCLES_FRONTEND |
31 | * - PERF_COUNT_HW_STALLED_CYCLES_BACKEND |
32 | * - PERF_COUNT_HW_REF_CPU_CYCLES |
33 | */ |
34 | if (PVR_VER(mfspr(SPRN_PVR)) == POWER10) { |
35 | event_init_opts(e: &event, config: PERF_COUNT_HW_CPU_CYCLES, type: PERF_TYPE_HARDWARE, name: "event" ); |
36 | FAIL_IF(event_open(e: &event)); |
37 | event_close(e: &event); |
38 | |
39 | event_init_opts(e: &event, config: PERF_COUNT_HW_INSTRUCTIONS, |
40 | type: PERF_TYPE_HARDWARE, name: "event" ); |
41 | FAIL_IF(event_open(e: &event)); |
42 | event_close(e: &event); |
43 | |
44 | event_init_opts(e: &event, config: PERF_COUNT_HW_CACHE_REFERENCES, |
45 | type: PERF_TYPE_HARDWARE, name: "event" ); |
46 | FAIL_IF(event_open(e: &event)); |
47 | event_close(e: &event); |
48 | |
49 | event_init_opts(e: &event, config: PERF_COUNT_HW_CACHE_MISSES, type: PERF_TYPE_HARDWARE, name: "event" ); |
50 | FAIL_IF(event_open(e: &event)); |
51 | event_close(e: &event); |
52 | |
53 | event_init_opts(e: &event, config: PERF_COUNT_HW_BRANCH_INSTRUCTIONS, |
54 | type: PERF_TYPE_HARDWARE, name: "event" ); |
55 | FAIL_IF(event_open(e: &event)); |
56 | event_close(e: &event); |
57 | |
58 | event_init_opts(e: &event, config: PERF_COUNT_HW_BRANCH_MISSES, type: PERF_TYPE_HARDWARE, name: "event" ); |
59 | FAIL_IF(event_open(e: &event)); |
60 | event_close(e: &event); |
61 | |
62 | event_init_opts(e: &event, config: PERF_COUNT_HW_BUS_CYCLES, type: PERF_TYPE_HARDWARE, name: "event" ); |
63 | FAIL_IF(!event_open(e: &event)); |
64 | |
65 | event_init_opts(e: &event, config: PERF_COUNT_HW_STALLED_CYCLES_FRONTEND, |
66 | type: PERF_TYPE_HARDWARE, name: "event" ); |
67 | FAIL_IF(!event_open(e: &event)); |
68 | |
69 | event_init_opts(e: &event, config: PERF_COUNT_HW_STALLED_CYCLES_BACKEND, |
70 | type: PERF_TYPE_HARDWARE, name: "event" ); |
71 | FAIL_IF(!event_open(e: &event)); |
72 | |
73 | event_init_opts(e: &event, config: PERF_COUNT_HW_REF_CPU_CYCLES, type: PERF_TYPE_HARDWARE, name: "event" ); |
74 | FAIL_IF(!event_open(e: &event)); |
75 | } else if (PVR_VER(mfspr(SPRN_PVR)) == POWER9) { |
76 | /* |
77 | * Invalid generic events in power9: |
78 | * - PERF_COUNT_HW_BUS_CYCLES |
79 | * - PERF_COUNT_HW_REF_CPU_CYCLES |
80 | */ |
81 | event_init_opts(e: &event, config: PERF_COUNT_HW_CPU_CYCLES, type: PERF_TYPE_HARDWARE, name: "event" ); |
82 | FAIL_IF(event_open(e: &event)); |
83 | event_close(e: &event); |
84 | |
85 | event_init_opts(e: &event, config: PERF_COUNT_HW_INSTRUCTIONS, type: PERF_TYPE_HARDWARE, name: "event" ); |
86 | FAIL_IF(event_open(e: &event)); |
87 | event_close(e: &event); |
88 | |
89 | event_init_opts(e: &event, config: PERF_COUNT_HW_CACHE_REFERENCES, |
90 | type: PERF_TYPE_HARDWARE, name: "event" ); |
91 | FAIL_IF(event_open(e: &event)); |
92 | event_close(e: &event); |
93 | |
94 | event_init_opts(e: &event, config: PERF_COUNT_HW_CACHE_MISSES, type: PERF_TYPE_HARDWARE, name: "event" ); |
95 | FAIL_IF(event_open(e: &event)); |
96 | event_close(e: &event); |
97 | |
98 | event_init_opts(e: &event, config: PERF_COUNT_HW_BRANCH_INSTRUCTIONS, |
99 | type: PERF_TYPE_HARDWARE, name: "event" ); |
100 | FAIL_IF(event_open(e: &event)); |
101 | event_close(e: &event); |
102 | |
103 | event_init_opts(e: &event, config: PERF_COUNT_HW_BRANCH_MISSES, type: PERF_TYPE_HARDWARE, name: "event" ); |
104 | FAIL_IF(event_open(e: &event)); |
105 | event_close(e: &event); |
106 | |
107 | event_init_opts(e: &event, config: PERF_COUNT_HW_BUS_CYCLES, type: PERF_TYPE_HARDWARE, name: "event" ); |
108 | FAIL_IF(!event_open(e: &event)); |
109 | |
110 | event_init_opts(e: &event, config: PERF_COUNT_HW_STALLED_CYCLES_FRONTEND, |
111 | type: PERF_TYPE_HARDWARE, name: "event" ); |
112 | FAIL_IF(event_open(e: &event)); |
113 | event_close(e: &event); |
114 | |
115 | event_init_opts(e: &event, config: PERF_COUNT_HW_STALLED_CYCLES_BACKEND, |
116 | type: PERF_TYPE_HARDWARE, name: "event" ); |
117 | FAIL_IF(event_open(e: &event)); |
118 | event_close(e: &event); |
119 | |
120 | event_init_opts(e: &event, config: PERF_COUNT_HW_REF_CPU_CYCLES, type: PERF_TYPE_HARDWARE, name: "event" ); |
121 | FAIL_IF(!event_open(e: &event)); |
122 | } |
123 | |
124 | return 0; |
125 | } |
126 | |
127 | int main(void) |
128 | { |
129 | return test_harness(generic_events_valid_test, "generic_events_valid_test" ); |
130 | } |
131 | |