[PATCH 00/45] TTM move refactoring

[Dave Airlie]

This refactors how TTM moves get called between core and drivers.

1) puts the driver in charge of all moves, and enforces
drivers have a move callback.
2) moves move_notify actions around moves to the driver side
3) moves binding/unbinding completely into move and driver side
4) add a new invalidate callback to replace the last use of move_notify
5) add some helpers to cleanup the resulting move code

There's a bit of internal churn to try and make each patch logical, so
don't get too caught up in each patches changes unless the end result
is a problem.

Dave.