| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright 2022, Athira Rajeev, IBM Corp. |
| */ |
| |
| #include <stdio.h> |
| #include "../event.h" |
| #include "../sampling_tests/misc.h" |
| |
| /* The processor's L1 data cache was reloaded */ |
| #define EventCode1 0x21C040 |
| #define EventCode2 0x22C040 |
| |
| /* |
| * Testcase for group constraint check |
| * when using events with same PMC. |
| * Multiple events in a group shouldn't |
| * ask for same PMC. If so it should fail. |
| */ |
| |
| static int group_constraint_repeat(void) |
| { |
| struct event event, leader; |
| |
| /* Check for platform support for the test */ |
| SKIP_IF(platform_check_for_tests()); |
| |
| /* |
| * Two events in a group using same PMC |
| * should fail to get scheduled. Usei same PMC2 |
| * for leader and sibling event which is expected |
| * to fail. |
| */ |
| event_init(&leader, EventCode1); |
| FAIL_IF(event_open(&leader)); |
| |
| event_init(&event, EventCode1); |
| |
| /* Expected to fail since sibling event is requesting same PMC as leader */ |
| FAIL_IF(!event_open_with_group(&event, leader.fd)); |
| |
| event_init(&event, EventCode2); |
| |
| /* Expected to pass since sibling event is requesting different PMC */ |
| FAIL_IF(event_open_with_group(&event, leader.fd)); |
| |
| event_close(&leader); |
| event_close(&event); |
| |
| return 0; |
| } |
| |
| int main(void) |
| { |
| return test_harness(group_constraint_repeat, "group_constraint_repeat"); |
| } |