Date: Thu, 3 Apr 2003 16:35:40 -0500 From: "Kevin A. Pieckiel" <kpieckiel@smartrafficenter.org> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: freebsd-alpha@freebsd.org Subject: Re: AS1200 Message-ID: <20030403213540.GD90878@pacer.dmz.smartrafficenter.org> In-Reply-To: <16012.39385.672997.35768@grasshopper.cs.duke.edu> References: <20030403131752.GA90878@pacer.dmz.smartrafficenter.org> <20030403185510.GA6302@freebie.xs4all.nl> <20030403193738.GB90878@pacer.dmz.smartrafficenter.org> <16012.37153.407140.240893@grasshopper.cs.duke.edu> <20030403201620.GC90878@pacer.dmz.smartrafficenter.org> <16012.39385.672997.35768@grasshopper.cs.duke.edu>
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--at6+YcpfzWZg/htY Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Apr 03, 2003 at 03:30:17PM -0500, Andrew Gallatin wrote: > Alpha do peer buses differently. Rather than having multiple > connections to the host system appear as fake pci-pci bridges like > x86s do, each connection to the host system is called a "hose". Each > hose has its own address space, and has its own tree of pci buses. > Eg, hose 0 has a pci bus #0, and #1, etc, hose 1 has a pci bus #0, #1 > #2, etc. The address space on hoses other than hose #0 is handled via > a hack in 4.x, and some boards don't work because of that. This is > done right in 5.x Good summary. Thanks for the explanation; I appreciate that a great deal. I'm getting more and more interested in finding architectureal documents--tons for the x86, of course. But I'll go looking for some books or net articles before I officially ask for suggestions... :) Afterall, I can't expect to get any real help if I'm not willing to do my homework. I will note this information and do what I can to verify this before I attempt any install of the OS. Kevin No prisoner's dilemma here. Over the long term, symbiosis is more useful than parasitism. More fun, too. Ask any mitochondria. -- Larry Wall --- This message was signed by GnuPG. E-Mail kpieckiel-pgp@smartrafficenter.org to receive my public key. You may also get my key from pgpkeys.mit.edu; my ID is 0xF1604E92 and will expire on 01 January 2004. --at6+YcpfzWZg/htY Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (FreeBSD) iD8DBQE+jKksc3iJbvFgTpIRAqRrAJ4plXQM1GxgTPQYtOiovMZzb9g6FQCffDYg dHg9ZZtyGjdQsIM6qYzN28s= =EZ2a -----END PGP SIGNATURE----- --at6+YcpfzWZg/htY--
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