This flips the arbiter muxes on the same cycle as a new request
comes in, thus avoiding a cycle latency.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Consecutive accesses from the same master shouldn't need an IDLE
cycle. Completely remove the IDLE state and switch master when
the bus is idle, but stay on the last selected one between cycles.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Benjamin Herrenschmidt