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// 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"
/* All successful D-side store dispatches for this thread */
#define EventCode_1 0x010000046080
/* All successful D-side store dispatches for this thread that were L2 Miss */
#define EventCode_2 0x26880
/* All successful D-side store dispatches for this thread that were L2 Miss */
#define EventCode_3 0x010000026880
/*
* Testcase for group constraint check of l2l3_sel bits which is
* used to program l2l3 select field in Monitor Mode Control Register 0
* (MMCR0: 56-60).
* All events in the group should match l2l3_sel bits otherwise
* event_open for the group should fail.
*/
static int group_constraint_l2l3_sel(void)
{
struct event event, leader;
/*
* Check for platform support for the test.
* This test is only aplicable on power10
*/
SKIP_IF(platform_check_for_tests());
SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
/* Init the events for the group contraint check for l2l3_sel bits */
event_init(&leader, EventCode_1);
FAIL_IF(event_open(&leader));
event_init(&event, EventCode_2);
/* Expected to fail as sibling event doesn't request same l2l3_sel bits as leader */
FAIL_IF(!event_open_with_group(&event, leader.fd));
event_close(&event);
/* Init the event for the group contraint l2l3_sel test */
event_init(&event, EventCode_3);
/* Expected to succeed as sibling event request same l2l3_sel bits as leader */
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_l2l3_sel, "group_constraint_l2l3_sel");
}
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