| ASTRO(4) | Device Drivers Manual (hppa) | ASTRO(4) |
astro — Astro
Memory and I/O controller
astro* at mainbus?
elroy* at astro?
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.
The astro driver first appeared in
OpenBSD 4.2.
| May 31, 2007 | OpenBSD-current |