Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 16 Oct 2002 07:45:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 16 Oct 2002 07:45:35 -0400 Received: from delta.ds2.pg.gda.pl ([213.192.72.1]:34006 "EHLO delta.ds2.pg.gda.pl") by vger.kernel.org with ESMTP id ; Wed, 16 Oct 2002 07:45:35 -0400 Date: Wed, 16 Oct 2002 13:51:54 +0200 (MET DST) From: "Maciej W. Rozycki" To: "David S. Miller" cc: jw@pegasys.ws, linux-kernel@vger.kernel.org Subject: Re: mapping 36 bit physical addresses into 32 bit virtual In-Reply-To: <20021016.002408.78874810.davem@redhat.com> Message-ID: Organization: Technical University of Gdansk MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 948 Lines: 23 On Wed, 16 Oct 2002, David S. Miller wrote: > i distinctly remember the working > with the newest R400x in 1993 which was still 32bit. > > You remember wrong, R400x can run happily in either 32-bit or 64-bit > mode. Many system implementations sticked to a 32-bit operation of R4k processors, though, possibly because of a few intriguing processor errata in early silicon revisions that hurt badly certain 64-bit operations. This might have created an illusion these processors were 32-bit. -- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available + - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/