From owner-freebsd-mips@FreeBSD.ORG Tue Nov 11 13:04:14 2003 Return-Path: Delivered-To: freebsd-mips@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8995316A4CE; Tue, 11 Nov 2003 13:04:14 -0800 (PST) Received: from mail.linux-mips.net (p508B68E7.dip.t-dialin.net [80.139.104.231]) by mx1.FreeBSD.org (Postfix) with ESMTP id DE3AB43FF5; Tue, 11 Nov 2003 13:04:07 -0800 (PST) (envelope-from ralf@linux-mips.org) Received: from dea.linux-mips.net (localhost [127.0.0.1]) by mail.linux-mips.net (8.12.8/8.12.8) with ESMTP id hABL46A0017035; Tue, 11 Nov 2003 22:04:06 +0100 Received: (from ralf@localhost) by dea.linux-mips.net (8.12.8/8.12.8/Submit) id hABL45D8017034; Tue, 11 Nov 2003 22:04:05 +0100 Date: Tue, 11 Nov 2003 22:04:05 +0100 From: Ralf Baechle To: Juli Mallett Message-ID: <20031111210405.GA16834@linux-mips.org> References: <20031111142433.A9560@FreeBSD.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20031111142433.A9560@FreeBSD.org> User-Agent: Mutt/1.4.1i cc: freebsd-mips@FreeBSD.org Subject: Re: A note about status. X-BeenThere: freebsd-mips@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to MIPS List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Nov 2003 21:04:14 -0000 Juli, On Tue, Nov 11, 2003 at 02:24:33PM -0600, Juli Mallett wrote: > I'm doing all this on my R4400 Indigo2's. I've seen some weird stuff > with my Indy, but that may have been related to a dumb mistake in the > TLB refill code I fixed last night. The R4600 only has a 5 stage pipeline unlike the R4400's 8 stages which means most hazards are shorter or do not exist on the R4600 - but not all of them. Some pre-historic, somewhat over-agressive version of the Linux TLB refill handlers got shot down by the tiny differences between the R4000 v2.2 and v3.0 differences, since then I'm behaving like a burned child ;-) > Either than, or the R4600 is just > unsuitable for running with the KX bit set (extended kernel mode - 64 > bit address space). I have other hardware on the way, and intend to > get an O2 to play with, too. I'd like to keep things inclusive from > an early stage, and not make any assumptions that might bite me badly. > The other hardware on the way isn't something SGI :) I can assure you the R4600 is running with KX just fine. > Anyone interested in helping out is welcome to, I'm even willing to put > in time to make my Perforce tree available to the outside (non-FreeBSD) > world, if there's enough interest, or help out in other ways. Questions > welcome :) For curiosity sake I'd be interested. Ralf