drm/amd/powerplay: fix warning of cast to pointer from integer of different size.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/eventmgr/eventtasks.c

@@ -402,7 +402,7 @@ int pem_task_create_user_performance_state(struct pp_eventmgr *eventmgr, struct
 			event_data->pnew_power_state = state;
 			return 0;
 		}
-		state = (struct pp_power_state *)((uint64_t)state + hwmgr->ps_size);
+		state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
 	}
 
 	switch (event_data->requested_ui_label) {

drivers/gpu/drm/amd/powerplay/eventmgr/psm.c

@@ -37,7 +37,7 @@ int psm_get_ui_state(struct pp_eventmgr *eventmgr, enum PP_StateUILabel ui_label
 			*state_id = state->id;
 			return 0;
 		}
-		state = (struct pp_power_state *)((uint64_t)state + hwmgr->ps_size);
+		state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
 	}
 	return -1;
 }
@@ -57,7 +57,7 @@ int psm_get_state_by_classification(struct pp_eventmgr *eventmgr, enum PP_StateC
 			*state_id = state->id;
 			return 0;
 		}
-		state = (struct pp_power_state *)((uint64_t)state + hwmgr->ps_size);
+		state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
 	}
 	return -1;
 }
@@ -77,7 +77,7 @@ int psm_set_performance_states(struct pp_eventmgr *eventmgr, unsigned long *stat
 			hwmgr->request_ps = state;
 			return 0;
 		}
-		state = (struct pp_power_state *)((uint64_t)state + hwmgr->ps_size);
+		state = (struct pp_power_state *)((unsigned long)state + hwmgr->ps_size);
 	}
 	return -1;
 }

drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c

@@ -121,7 +121,7 @@ int hw_init_power_state_table(struct pp_hwmgr *hwmgr)
 
 		if (state->classification.flags & PP_StateClassificationFlag_Uvd)
 			hwmgr->uvd_ps = state;
-		state = (struct pp_power_state *)((uint64_t)state + size);
+		state = (struct pp_power_state *)((unsigned long)state + size);
 	}
 
 	return 0;