// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright 2022, Athira Rajeev, IBM Corp.
 */

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

#define PM_RUN_CYC_ALT 0x200f4
#define PM_INST_DISP 0x200f2
#define PM_BR_2PATH 0x20036
#define PM_LD_MISS_L1 0x3e054
#define PM_RUN_INST_CMPL_ALT 0x400fa

#define EventCode_1 0x100fc
#define EventCode_2 0x200fa
#define EventCode_3 0x300fc
#define EventCode_4 0x400fc

/*
 * Check for event alternatives.
 */

static int event_alternatives_tests_p10(void)
{
        struct event *e, events[5];
        int i;
        int pvr = PVR_VER(mfspr(SPRN_PVR));

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

        /*
         * PVR check is used here since PMU specific data like
         * alternative events is handled by respective PMU driver
         * code and using PVR will work correctly for all cases
         * including generic compat mode.
         */
        SKIP_IF((pvr != POWER10) && (pvr != POWER11));

        SKIP_IF(check_for_generic_compat_pmu());

        /*
         * Test for event alternative for 0x0001e
         * and 0x00002.
         */
        e = &events[0];
        event_init(e, 0x0001e);

        e = &events[1];
        event_init(e, EventCode_1);

        e = &events[2];
        event_init(e, EventCode_2);

        e = &events[3];
        event_init(e, EventCode_3);

        e = &events[4];
        event_init(e, EventCode_4);

        FAIL_IF(event_open(&events[0]));

        /*
         * Expected to pass since 0x0001e has alternative event
         * 0x600f4 in PMC6. So it can go in with other events
         * in PMC1 to PMC4.
         */
        for (i = 1; i < 5; i++)
                FAIL_IF(event_open_with_group(&events[i], events[0].fd));

        for (i = 0; i < 5; i++)
                event_close(&events[i]);

        e = &events[0];
        event_init(e, 0x00002);

        e = &events[1];
        event_init(e, EventCode_1);

        e = &events[2];
        event_init(e, EventCode_2);

        e = &events[3];
        event_init(e, EventCode_3);

        e = &events[4];
        event_init(e, EventCode_4);

        FAIL_IF(event_open(&events[0]));

        /*
         * Expected to pass since 0x00020 has alternative event
         * 0x500fa in PMC5. So it can go in with other events
         * in PMC1 to PMC4.
         */
        for (i = 1; i < 5; i++)
                FAIL_IF(event_open_with_group(&events[i], events[0].fd));

        for (i = 0; i < 5; i++)
                event_close(&events[i]);

        return 0;
}

int main(void)
{
        return test_harness(event_alternatives_tests_p10, "event_alternatives_tests_p10");
}