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/*
* Copyright 2014, Michael Ellerman, IBM Corp.
* Licensed under GPLv2.
*/
#include <stdio.h>
#include <stdlib.h>
#include "ebb.h"
/*
* Test various attributes of the EBB event are enforced.
*/
int event_attributes(void)
{
struct event event, leader;
SKIP_IF(!ebb_is_supported());
event_init(&event, 0x1001e);
event_leader_ebb_init(&event);
/* Expected to succeed */
FAIL_IF(event_open(&event));
event_close(&event);
event_init(&event, 0x001e); /* CYCLES - no PMC specified */
event_leader_ebb_init(&event);
/* Expected to fail, no PMC specified */
FAIL_IF(event_open(&event) == 0);
event_init(&event, 0x2001e);
event_leader_ebb_init(&event);
event.attr.exclusive = 0;
/* Expected to fail, not exclusive */
FAIL_IF(event_open(&event) == 0);
event_init(&event, 0x3001e);
event_leader_ebb_init(&event);
event.attr.freq = 1;
/* Expected to fail, sets freq */
FAIL_IF(event_open(&event) == 0);
event_init(&event, 0x4001e);
event_leader_ebb_init(&event);
event.attr.sample_period = 1;
/* Expected to fail, sets sample_period */
FAIL_IF(event_open(&event) == 0);
event_init(&event, 0x1001e);
event_leader_ebb_init(&event);
event.attr.enable_on_exec = 1;
/* Expected to fail, sets enable_on_exec */
FAIL_IF(event_open(&event) == 0);
event_init(&event, 0x1001e);
event_leader_ebb_init(&event);
event.attr.inherit = 1;
/* Expected to fail, sets inherit */
FAIL_IF(event_open(&event) == 0);
event_init(&leader, 0x1001e);
event_leader_ebb_init(&leader);
FAIL_IF(event_open(&leader));
event_init(&event, 0x20002);
event_ebb_init(&event);
/* Expected to succeed */
FAIL_IF(event_open_with_group(&event, leader.fd));
event_close(&leader);
event_close(&event);
event_init(&leader, 0x1001e);
event_leader_ebb_init(&leader);
FAIL_IF(event_open(&leader));
event_init(&event, 0x20002);
/* Expected to fail, event doesn't request EBB, leader does */
FAIL_IF(event_open_with_group(&event, leader.fd) == 0);
event_close(&leader);
event_init(&leader, 0x1001e);
event_leader_ebb_init(&leader);
/* Clear the EBB flag */
leader.attr.config &= ~(1ull << 63);
FAIL_IF(event_open(&leader));
event_init(&event, 0x20002);
event_ebb_init(&event);
/* Expected to fail, leader doesn't request EBB */
FAIL_IF(event_open_with_group(&event, leader.fd) == 0);
event_close(&leader);
event_init(&leader, 0x1001e);
event_leader_ebb_init(&leader);
leader.attr.exclusive = 0;
/* Expected to fail, leader isn't exclusive */
FAIL_IF(event_open(&leader) == 0);
event_init(&leader, 0x1001e);
event_leader_ebb_init(&leader);
leader.attr.pinned = 0;
/* Expected to fail, leader isn't pinned */
FAIL_IF(event_open(&leader) == 0);
event_init(&event, 0x1001e);
event_leader_ebb_init(&event);
/* Expected to fail, not a task event */
SKIP_IF(require_paranoia_below(1));
FAIL_IF(event_open_with_cpu(&event, 0) == 0);
return 0;
}
int main(void)
{
return test_harness(event_attributes, "event_attributes");
}
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