astro man page on OpenBSD

astro man page on OpenBSD

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ASTRO(4)	      OpenBSD Programmer's Manual (HPPA)	      ASTRO(4)

NAME
     astro - Astro Memory and I/O controller

SYNOPSIS
     astro* at mainbus?
     elroy* at astro?

DESCRIPTION
     The astro driver provides support for the Astro memory and I/O controller
     used on systems with PA-8500 and later 64-bit CPUs.  It functions as a
     bridge from the Runway bus to up to 8 I/O ropes that connect to Elroy
     chips.  Astro contains an IOMMU and provides support for cache coherent
     DMA.

SEE ALSO
     cpu(4), elroy(4), intro(4), runway(4)

HISTORY
     The astro driver first appeared in OpenBSD 4.2.

OpenBSD 4.9			 May 31, 2007			   OpenBSD 4.9

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