// SPDX-License-Identifier: GPL-2.0
#include "arch-tests.h"
#include "linux/perf_event.h"
#include "tests/tests.h"
#include "pmu.h"
#include "pmus.h"
#include "../perf-sys.h"
#include "debug.h"

#define NR_SUB_TESTS 5

static struct sub_tests {
        int type;
        unsigned long config;
        bool valid;
} sub_tests[NR_SUB_TESTS] = {
        { PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, true },
        { PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS, false },
        { PERF_TYPE_RAW, 0x076, true },
        { PERF_TYPE_RAW, 0x0C1, true },
        { PERF_TYPE_RAW, 0x012, false },
};

static int event_open(int type, unsigned long config)
{
        struct perf_event_attr attr;

        memset(&attr, 0, sizeof(struct perf_event_attr));
        attr.type = type;
        attr.size = sizeof(struct perf_event_attr);
        attr.config = config;
        attr.disabled = 1;
        attr.precise_ip = 1;
        attr.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID;
        attr.sample_period = 100000;

        return sys_perf_event_open(&attr, -1, 0, -1, 0);
}

int test__amd_ibs_via_core_pmu(struct test_suite *test __maybe_unused,
                               int subtest __maybe_unused)
{
        struct perf_pmu *ibs_pmu;
        int ret = TEST_OK;
        int fd, i;

        ibs_pmu = perf_pmus__find("ibs_op");
        if (!ibs_pmu)
                return TEST_SKIP;

        for (i = 0; i < NR_SUB_TESTS; i++) {
                fd = event_open(sub_tests[i].type, sub_tests[i].config);
                pr_debug("type: 0x%x, config: 0x%lx, fd: %d  -  ", sub_tests[i].type,
                         sub_tests[i].config, fd);
                if ((sub_tests[i].valid && fd == -1) ||
                    (!sub_tests[i].valid && fd > 0)) {
                        pr_debug("Fail\n");
                        ret = TEST_FAIL;
                } else {
                        pr_debug("Pass\n");
                }

                if (fd > 0)
                        close(fd);
        }

        return ret;
}