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/*
* Copyright 2014, Michael Ellerman, IBM Corp.
* Licensed under GPLv2.
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include "ebb.h"
/*
* Test counting multiple events using EBBs.
*/
int multi_counter(void)
{
struct event events[6];
int i, group_fd;
SKIP_IF(!ebb_is_supported());
event_init_named(&events[0], 0x1001C, "PM_CMPLU_STALL_THRD");
event_init_named(&events[1], 0x2D016, "PM_CMPLU_STALL_FXU");
event_init_named(&events[2], 0x30006, "PM_CMPLU_STALL_OTHER_CMPL");
event_init_named(&events[3], 0x4000A, "PM_CMPLU_STALL");
event_init_named(&events[4], 0x600f4, "PM_RUN_CYC");
event_init_named(&events[5], 0x500fa, "PM_RUN_INST_CMPL");
event_leader_ebb_init(&events[0]);
for (i = 1; i < 6; i++)
event_ebb_init(&events[i]);
group_fd = -1;
for (i = 0; i < 6; i++) {
events[i].attr.exclude_kernel = 1;
events[i].attr.exclude_hv = 1;
events[i].attr.exclude_idle = 1;
FAIL_IF(event_open_with_group(&events[i], group_fd));
if (group_fd == -1)
group_fd = events[0].fd;
}
ebb_enable_pmc_counting(1);
ebb_enable_pmc_counting(2);
ebb_enable_pmc_counting(3);
ebb_enable_pmc_counting(4);
ebb_enable_pmc_counting(5);
ebb_enable_pmc_counting(6);
setup_ebb_handler(standard_ebb_callee);
FAIL_IF(ioctl(events[0].fd, PERF_EVENT_IOC_ENABLE, PERF_IOC_FLAG_GROUP));
FAIL_IF(event_read(&events[0]));
ebb_global_enable();
mtspr(SPRN_PMC1, pmc_sample_period(sample_period));
mtspr(SPRN_PMC2, pmc_sample_period(sample_period));
mtspr(SPRN_PMC3, pmc_sample_period(sample_period));
mtspr(SPRN_PMC4, pmc_sample_period(sample_period));
mtspr(SPRN_PMC5, pmc_sample_period(sample_period));
mtspr(SPRN_PMC6, pmc_sample_period(sample_period));
while (ebb_state.stats.ebb_count < 50) {
FAIL_IF(core_busy_loop());
FAIL_IF(ebb_check_mmcr0());
}
ebb_global_disable();
ebb_freeze_pmcs();
count_pmc(1, sample_period);
count_pmc(2, sample_period);
count_pmc(3, sample_period);
count_pmc(4, sample_period);
count_pmc(5, sample_period);
count_pmc(6, sample_period);
dump_ebb_state();
for (i = 0; i < 6; i++)
event_close(&events[i]);
FAIL_IF(ebb_state.stats.ebb_count == 0);
return 0;
}
int main(void)
{
return test_harness(multi_counter, "multi_counter");
}
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