As far as I know and could find in cisco.com
line cards in 650x platform have
different trust boundary implementations.
For example, if all input traffic should be trusted
on some line cards you have to apply
a policy-map to the interface
on some others you configure in interface-mode
mls qos trust dscp
Consequently, a port trust state is shown differently.
In the first case you’d use
show queueing interface
in the second example,
show mls qos ip
probably because of the underlying hardware
performing the QoS operation (PFC/ASIC).
Can anyone point me to more specific documentation?