-Add fence sync objects
-Add fence sync devPrivates
-Add a X sync module screen private
-Add wrappable functions to create and destroy
fence sync objects
-Give fence sync objects wrappable functions to
trigger, test, and reset their 'triggered' value.
-Give fence sync objects wrappable functions to
notify driver when adding/removing triggers to/
from the sync object.
Signed-off-by: James Jones <jajones@nvidia.com>
Reviewed-by: Keith Packard <keithp@keithp.com>