| /* | |
| * Copyright 2014, Michael Ellerman, IBM Corp. | |
| * Licensed under GPLv2. | |
| */ | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include "ebb.h" | |
| /* | |
| * Basic test that counts user cycles and takes EBBs. | |
| */ | |
| int cycles(void) | |
| { | |
| struct event event; | |
| SKIP_IF(!ebb_is_supported()); | |
| event_init_named(&event, 0x1001e, "cycles"); | |
| event_leader_ebb_init(&event); | |
| event.attr.exclude_kernel = 1; | |
| event.attr.exclude_hv = 1; | |
| event.attr.exclude_idle = 1; | |
| FAIL_IF(event_open(&event)); | |
| ebb_enable_pmc_counting(1); | |
| setup_ebb_handler(standard_ebb_callee); | |
| ebb_global_enable(); | |
| FAIL_IF(ebb_event_enable(&event)); | |
| mtspr(SPRN_PMC1, pmc_sample_period(sample_period)); | |
| while (ebb_state.stats.ebb_count < 10) { | |
| FAIL_IF(core_busy_loop()); | |
| FAIL_IF(ebb_check_mmcr0()); | |
| } | |
| ebb_global_disable(); | |
| ebb_freeze_pmcs(); | |
| count_pmc(1, sample_period); | |
| dump_ebb_state(); | |
| event_close(&event); | |
| FAIL_IF(ebb_state.stats.ebb_count == 0); | |
| FAIL_IF(!ebb_check_count(1, sample_period, 100)); | |
| return 0; | |
| } | |
| int main(void) | |
| { | |
| return test_harness(cycles, "cycles"); | |
| } |