1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright 2022, Athira Rajeev, IBM Corp.
4 */
5
6 #include <stdio.h>
7 #include "../event.h"
8 #include "../sampling_tests/misc.h"
9
10 /*
11 * Testcase for checking constraint checks for
12 * Performance Monitor Counter 5 (PMC5) and also
13 * Performance Monitor Counter 6 (PMC6). Events using
14 * PMC5/PMC6 shouldn't have other fields in event
15 * code like cache bits, thresholding or marked bit.
16 */
17
group_constraint_pmc56(void)18 static int group_constraint_pmc56(void)
19 {
20 struct event event;
21
22 /* Check for platform support for the test */
23 SKIP_IF(platform_check_for_tests());
24
25 /*
26 * Events using PMC5 and PMC6 with cache bit
27 * set in event code is expected to fail.
28 */
29 event_init(&event, 0x2500fa);
30 FAIL_IF(!event_open(&event));
31
32 event_init(&event, 0x2600f4);
33 FAIL_IF(!event_open(&event));
34
35 /*
36 * PMC5 and PMC6 only supports base events:
37 * ie 500fa and 600f4. Other combinations
38 * should fail.
39 */
40 event_init(&event, 0x501e0);
41 FAIL_IF(!event_open(&event));
42
43 event_init(&event, 0x6001e);
44 FAIL_IF(!event_open(&event));
45
46 event_init(&event, 0x501fa);
47 FAIL_IF(!event_open(&event));
48
49 /*
50 * Events using PMC5 and PMC6 with random
51 * sampling bits set in event code should fail
52 * to schedule.
53 */
54 event_init(&event, 0x35340500fa);
55 FAIL_IF(!event_open(&event));
56
57 return 0;
58 }
59
main(void)60 int main(void)
61 {
62 return test_harness(group_constraint_pmc56, "group_constraint_pmc56");
63 }
64