| 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 | #define EventCode_1 0x35340401e0 |
| 11 | #define EventCode_2 0x353c0101ec |
| 12 | #define EventCode_3 0x35340101ec |
| 13 | /* |
| 14 | * Test that using different sample bits in |
| 15 | * event code cause failure in schedule for |
| 16 | * group of events. |
| 17 | */ |
| 18 | |
| 19 | static int group_constraint_mmcra_sample(void) |
| 20 | { |
| 21 | struct event event, leader; |
| 22 | |
| 23 | SKIP_IF(platform_check_for_tests()); |
| 24 | |
| 25 | /* |
| 26 | * Events with different "sample" field values |
| 27 | * in a group will fail to schedule. |
| 28 | * Use event with load only sampling mode as |
| 29 | * group leader. Use event with store only sampling |
| 30 | * as sibling event. |
| 31 | */ |
| 32 | event_init(e: &leader, EventCode_1); |
| 33 | FAIL_IF(event_open(e: &leader)); |
| 34 | |
| 35 | event_init(e: &event, EventCode_2); |
| 36 | |
| 37 | /* Expected to fail as sibling event doesn't use same sampling bits as leader */ |
| 38 | FAIL_IF(!event_open_with_group(e: &event, group_fd: leader.fd)); |
| 39 | |
| 40 | event_init(e: &event, EventCode_3); |
| 41 | |
| 42 | /* Expected to pass as sibling event use same sampling bits as leader */ |
| 43 | FAIL_IF(event_open_with_group(e: &event, group_fd: leader.fd)); |
| 44 | |
| 45 | event_close(e: &leader); |
| 46 | event_close(e: &event); |
| 47 | |
| 48 | return 0; |
| 49 | } |
| 50 | |
| 51 | int main(void) |
| 52 | { |
| 53 | return test_harness(group_constraint_mmcra_sample, "group_constraint_mmcra_sample"); |
| 54 | } |
| 55 |