NAME
runway —
Runway bus
SYNOPSIS
uturn* at mainbus?
DESCRIPTION
The runway bus is a CPU and memory bus on
systems based on the PA-7200, PA-8000, and later CPUs. The
runway bus is a 64-bit multiplexed address/data bus
with support for cache coherency and allows up to 4-way SMP system
configurations.
One or two uturn(4) bridges connect the runway
bus to the system's gsc(4) or pci(4) buses.
SEE ALSO
HISTORY
The runway driver first appeared in
OpenBSD 3.7.