Method init

tests/framework/instruments/MaliCounter.cpp:150–274

}

void MaliCounter::init()
{
    term();

    MaliHWInfo hw_info = get_mali_hw_info(_device);

    _num_cores = hw_info.mp_count;

    _fd = open(_device, O_RDWR | O_CLOEXEC | O_NONBLOCK); // NOLINT

    if (_fd < 0)
    {
        ARM_COMPUTE_ERROR("Failed to open /dev/mali0.");
    }

    {
        mali_userspace::kbase_uk_hwcnt_reader_version_check_args check; // NOLINT
        memset(&check, 0, sizeof(check));

        if (mali_userspace::mali_ioctl(_fd, check) != 0)
        {
            ARM_COMPUTE_ERROR("Failed to get ABI version.");
        }
        else if (check.major < 10)
        {
            ARM_COMPUTE_ERROR("Unsupported ABI version 10.");
        }
    }

    {
        mali_userspace::kbase_uk_hwcnt_reader_set_flags flags; // NOLINT
        memset(&flags, 0, sizeof(flags));
        flags.header.id    = mali_userspace::KBASE_FUNC_SET_FLAGS; // NOLINT
        flags.create_flags = mali_userspace::BASE_CONTEXT_CREATE_KERNEL_FLAGS;

        if (mali_userspace::mali_ioctl(_fd, flags) != 0)
        {
            ARM_COMPUTE_ERROR("Failed settings flags ioctl.");
        }
    }

    {
        mali_userspace::kbase_uk_hwcnt_reader_setup setup; // NOLINT
        memset(&setup, 0, sizeof(setup));
        setup.header.id    = mali_userspace::KBASE_FUNC_HWCNT_READER_SETUP; // NOLINT
        setup.buffer_count = _buffer_count;
        setup.jm_bm        = -1;
        setup.shader_bm    = -1;
        setup.tiler_bm     = -1;
        setup.mmu_l2_bm    = -1;
        setup.fd           = -1;

        if (mali_userspace::mali_ioctl(_fd, setup) != 0)
        {
            ARM_COMPUTE_ERROR("Failed setting hwcnt reader ioctl.");
        }

        _hwc_fd = setup.fd;