// SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2014, Michael Ellerman, IBM Corp. */ #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"); }