NAME
runway —
Runway bus
SYNOPSIS
uturn* at mainbus?
DESCRIPTION
Therunway 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.