PPSMC_MSG_EnableCac
ret = amdgpu_kv_notify_message_to_smu(adev, PPSMC_MSG_EnableCac);
smc_result = amdgpu_si_send_msg_to_smc(adev, PPSMC_MSG_EnableCac);
(uint16_t)(PPSMC_MSG_EnableCac),
smc_result = ci_send_msg_to_smc(rdev, PPSMC_MSG_EnableCac);
ret = kv_notify_message_to_smu(rdev, PPSMC_MSG_EnableCac);
smc_result = rv770_send_msg_to_smc(rdev, PPSMC_MSG_EnableCac);
smc_result = si_send_msg_to_smc(rdev, PPSMC_MSG_EnableCac);