From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 09 Apr 2003 02:33:30 +0100 (BST) Received: from p508B6792.dip.t-dialin.net ([IPv6:::ffff:80.139.103.146]:32234 "EHLO dea.linux-mips.net") by linux-mips.org with ESMTP id ; Wed, 9 Apr 2003 02:33:29 +0100 Received: (from ralf@localhost) by dea.linux-mips.net (8.11.6/8.11.6) id h391XMM13270; Wed, 9 Apr 2003 03:33:22 +0200 Date: Wed, 9 Apr 2003 03:33:22 +0200 From: Ralf Baechle To: "Erik J. Green" Cc: "linux-mips@linux-mips.org" Subject: Re: 64 to 32 bit jr Message-ID: <20030409033322.B12708@linux-mips.org> References: <1049727719.3e9192e77cc49@my.visi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <1049727719.3e9192e77cc49@my.visi.com>; from erik@greendragon.org on Mon, Apr 07, 2003 at 03:01:59PM +0000 Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 1952 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ralf@linux-mips.org Precedence: bulk X-list: linux-mips On Mon, Apr 07, 2003 at 03:01:59PM +0000, Erik J. Green wrote: > I am unable to arrange my addresses similarly neatly, mostly I think due to > fighting with the toolchain I have. Is it "legal" for me to load a > kernel using the xkphys address and then do something like: You may map the kernel into XKSEG (0xc000000000000000). The kernel already has an option for that, CONFIG_MAPPED_KERNEL. It's used as a ccNUMA optimization on large Origin configurations to map a local copy of the kernel code to that address range. Ralf