Help/ loss of turbo power and loads of white smoke

[Taza]

Any help appreciated,after approx 90 min drive I lost turbo power and then had loads of white smoke and I mean loads of smoke,got to my destination and surrounded in smoke it was like a foggy day,so next day took it for a spin and it started smoking again after 15 mins same again loads of smoke,is it a new turbo or is there a problem with the engine,the engine sounds ok.

Cheers

Just hooked up to maxi scan and got the following error codes
turbocharger supercharger under boost
throttle actuator control module performance

Any ideas guys