From owner-freebsd-arch Mon Jul 17 10:13:36 2000 Delivered-To: freebsd-arch@freebsd.org Received: from pluto.plutotech.com (mail.plutotech.com [206.168.67.137]) by hub.freebsd.org (Postfix) with ESMTP id A2E3937B7F5 for ; Mon, 17 Jul 2000 10:13:29 -0700 (PDT) (envelope-from gibbs@plutotech.com) Received: from caspian.plutotech.com (root@mail.plutotech.com [206.168.67.137]) by pluto.plutotech.com (8.9.2/8.9.1) with ESMTP id LAA12245; Mon, 17 Jul 2000 11:10:24 -0600 (MDT) (envelope-from gibbs@plutotech.com) Message-Id: <200007171710.LAA12245@pluto.plutotech.com> X-Mailer: exmh version 2.1.1 10/15/1999 To: alex@big.endian.de (Alexander Langer) Cc: Chuck Paterson , Poul-Henning Kamp , arch@FreeBSD.ORG Subject: Re: removal of kvtop() on i386 In-Reply-To: Your message of "Mon, 17 Jul 2000 18:42:08 +0200." <20000717184208.B26484@cichlids.cichlids.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 17 Jul 2000 11:11:06 -0600 From: "Justin T. Gibbs" Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG >Thus spake Chuck Paterson (cp@bsdi.com): > >> Has anybody though about how to change this for >> architectures like Sparc where the whole idea of handing >> a physical address to the drivers on a bus doesn't apply, and >> where a unmapping/cache flushing operation must be done >> at io completion. ... >How do other *BSDs do that? Bus DMA. -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message