static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 reqvid);
static int core_voltage_post_transition(struct powernow_k8_data *data, u32 reqvid);
static int core_voltage_pre_transition(struct powernow_k8_data *data, u32 reqvid);
static int core_voltage_post_transition(struct powernow_k8_data *data, u32 reqvid);