riscv_pmu_get_hpm_info
ret = riscv_pmu_get_hpm_info(&hpm_width, &num_hw_ctrs);
EXPORT_SYMBOL_GPL(riscv_pmu_get_hpm_info);
int riscv_pmu_get_hpm_info(u32 *hw_ctr_width, u32 *num_hw_ctr);