root/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_pmc56_test.c
// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright 2022, Athira Rajeev, IBM Corp.
 */

#include <stdio.h>
#include "../event.h"
#include "../sampling_tests/misc.h"

/*
 * Testcase for checking constraint checks for
 * Performance Monitor Counter 5 (PMC5) and also
 * Performance Monitor Counter 6 (PMC6). Events using
 * PMC5/PMC6 shouldn't have other fields in event
 * code like cache bits, thresholding or marked bit.
 */

static int group_constraint_pmc56(void)
{
        struct event event;

        /* Check for platform support for the test */
        SKIP_IF(platform_check_for_tests());

        /*
         * Events using PMC5 and PMC6 with cache bit
         * set in event code is expected to fail.
         */
        event_init(&event, 0x2500fa);
        FAIL_IF(!event_open(&event));

        event_init(&event, 0x2600f4);
        FAIL_IF(!event_open(&event));

        /*
         * PMC5 and PMC6 only supports base events:
         * ie 500fa and 600f4. Other combinations
         * should fail.
         */
        event_init(&event, 0x501e0);
        FAIL_IF(!event_open(&event));

        event_init(&event, 0x6001e);
        FAIL_IF(!event_open(&event));

        event_init(&event, 0x501fa);
        FAIL_IF(!event_open(&event));

        /*
         * Events using PMC5 and PMC6 with random
         * sampling bits set in event code should fail
         * to schedule.
         */
        event_init(&event, 0x35340500fa);
        FAIL_IF(!event_open(&event));

        return 0;
}

int main(void)
{
        return test_harness(group_constraint_pmc56, "group_constraint_pmc56");
}