87 lines
2.0 KiB
C
87 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright 2014, Michael Ellerman, IBM Corp.
|
|
*/
|
|
|
|
#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();
|
|
|
|
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");
|
|
}
|