RUNWAY(4) - Device Drivers Manual (hppa)

RUNWAY(4) - Device Drivers Manual (hppa) #

RUNWAY(4) - Device Drivers Manual (hppa)

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 #

cpu(4), dino(4), gsc(4), intro(4), pci(4), uturn(4)

HISTORY #

The runway driver first appeared in OpenBSD 3.7.

OpenBSD 7.5 - May 31, 2007