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Date:      Fri, 9 May 1997 10:04:49 -0700 (MST)
From:      Terry Lambert <terry@lambert.org>
To:        avalon@coombs.anu.edu.au (Darren Reed)
Cc:        hackers@FreeBSD.ORG
Subject:   Re: Non-Intel CPUs and FreeBSD.
Message-ID:  <199705091704.KAA00498@phaeton.artisoft.com>
In-Reply-To: <199705090323.UAA06913@hub.freebsd.org> from "Darren Reed" at May 9, 97 01:21:08 pm

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> Is anyone using any of the AMD/Cyrix CPUs with FreeBSD successfully ?

People have reported success.  The system has detection code for these
chips; see locore.s to make sure your processor is one of the ones
detected.

> And more importantly, is it possible to use the CPUs in a multi CPU
> configuration under -current (or at all) ?

No.  AMD/Cyrix do not aupport APIC's.  SMP requires this, or hardware
which looks just like it, for MESI cache coherency enforcement.  They
are rumored to be working on an "Open APIC" standard, but I have yet
to see any chips.


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.



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