// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2022, Kajol Jain, IBM Corp.
*/
#include <stdio.h>
#include <stdlib.h>
#include "../event.h"
#include "utils.h"
#include "../sampling_tests/misc.h"
/*
* Primary PMU events used here are PM_MRK_INST_CMPL (0x401e0) and
* PM_THRESH_MET (0x101ec).
* Threshold event selection used is issue to complete
* Sampling criteria is Load or Store only sampling
*/
#define EventCode_1 0x35340401e0
#define EventCode_2 0x35540101ec
#define EventCode_3 0x35340101ec
/*
* Testcase for group constraint check of thresh_sel bits which is
* used to program thresh select field in Monitor Mode Control Register A
* (MMCRA: 45-57).
* All events in the group should match thresh sel bits otherwise
* event_open for the group will fail.
*/
static int group_constraint_thresh_sel(void)
{
struct event event, leader;
/* Check for platform support for the test */
SKIP_IF(platform_check_for_tests());
/* Init the events for the group contraint thresh select test */
event_init(&leader, EventCode_1);
FAIL_IF(event_open(&leader));
event_init(&event, EventCode_2);
/* Expected to fail as sibling and leader event request different thresh_sel bits */
FAIL_IF(!event_open_with_group(&event, leader.fd));
event_close(&event);
/* Init the event for the group contraint thresh select test */
event_init(&event, EventCode_3);
/* Expected to succeed as sibling and leader event request same thresh_sel bits */
FAIL_IF(event_open_with_group(&event, leader.fd));
event_close(&leader);
event_close(&event);
return 0;
}
int main(void)
{
return test_harness(group_constraint_thresh_sel, "group_constraint_thresh_sel");
}