((adev)->powerplay.pp_funcs->set_clockgating_by_smu(\
                        (adev)->powerplay.pp_handle, msg_id))
 
-#define amdgpu_dpm_notify_smu_memory_info(adev, virtual_addr_low, \
-                       virtual_addr_hi, mc_addr_low, mc_addr_hi, size) \
-               ((adev)->powerplay.pp_funcs->notify_smu_memory_info)( \
-                       (adev)->powerplay.pp_handle, virtual_addr_low, \
-                       virtual_addr_hi, mc_addr_low, mc_addr_hi, size)
-
 #define amdgpu_dpm_get_power_profile_mode(adev, buf) \
                ((adev)->powerplay.pp_funcs->get_power_profile_mode(\
                        (adev)->powerplay.pp_handle, buf))
 
        int (*load_firmware)(void *handle);
        int (*wait_for_fw_loading_complete)(void *handle);
        int (*set_clockgating_by_smu)(void *handle, uint32_t msg_id);
-       int (*notify_smu_memory_info)(void *handle, uint32_t virtual_addr_low,
-                                       uint32_t virtual_addr_hi,
-                                       uint32_t mc_addr_low,
-                                       uint32_t mc_addr_hi,
-                                       uint32_t size);
        int (*set_power_limit)(void *handle, uint32_t n);
        int (*get_power_limit)(void *handle, uint32_t *limit, bool default_limit);
 /* export to DC */
 
        return 0;
 }
 
-static int pp_dpm_notify_smu_memory_info(void *handle,
-                                       uint32_t virtual_addr_low,
-                                       uint32_t virtual_addr_hi,
-                                       uint32_t mc_addr_low,
-                                       uint32_t mc_addr_hi,
-                                       uint32_t size)
-{
-       struct pp_hwmgr *hwmgr = handle;
-       int ret = 0;
-
-       if (!hwmgr || !hwmgr->pm_en)
-               return -EINVAL;
-
-       if (hwmgr->hwmgr_func->notify_cac_buffer_info == NULL) {
-               pr_info("%s was not implemented.\n", __func__);
-               return -EINVAL;
-       }
-
-       mutex_lock(&hwmgr->smu_lock);
-
-       ret = hwmgr->hwmgr_func->notify_cac_buffer_info(hwmgr, virtual_addr_low,
-                                       virtual_addr_hi, mc_addr_low, mc_addr_hi,
-                                       size);
-
-       mutex_unlock(&hwmgr->smu_lock);
-
-       return ret;
-}
-
 static int pp_set_power_limit(void *handle, uint32_t limit)
 {
        struct pp_hwmgr *hwmgr = handle;
        .get_vce_clock_state = pp_dpm_get_vce_clock_state,
        .switch_power_profile = pp_dpm_switch_power_profile,
        .set_clockgating_by_smu = pp_set_clockgating_by_smu,
-       .notify_smu_memory_info = pp_dpm_notify_smu_memory_info,
        .get_power_profile_mode = pp_get_power_profile_mode,
        .set_power_profile_mode = pp_set_power_profile_mode,
        .odn_edit_dpm_table = pp_odn_edit_dpm_table,