From owner-freebsd-amd64@FreeBSD.ORG Thu Jul 21 18:58:17 2005 Return-Path: X-Original-To: freebsd-amd64@freebsd.org Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D136916A427 for ; Thu, 21 Jul 2005 18:58:17 +0000 (GMT) (envelope-from pete@he.iki.fi) Received: from rms06.rommon.net (rms06.rommon.net [212.54.5.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 93BAD43D55 for ; Thu, 21 Jul 2005 18:58:14 +0000 (GMT) (envelope-from pete@he.iki.fi) Received: from [193.64.42.239] (dyn239.helenius.fi [193.64.42.239]) by rms06.rommon.net (Postfix) with ESMTP id 6AEFB33C65; Thu, 21 Jul 2005 21:58:11 +0300 (EEST) Message-ID: <42DFF043.3090203@he.iki.fi> Date: Thu, 21 Jul 2005 21:58:11 +0300 From: Petri Helenius User-Agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Peter Wemm References: <42DFDCCA.8050207@he.iki.fi> <200507210137.29816.peter@wemm.org> In-Reply-To: <200507210137.29816.peter@wemm.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-amd64@freebsd.org Subject: Re: kernel memory X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jul 2005 18:58:18 -0000 Peter Wemm wrote: > >2GB for paged kernel memory. But in addition we access memory via the >direct map area to avoid the need for temporary mappings in many cases. >uma (malloc, mbufs) etc use this, as does the sfbuf temporary mapping >system. > > > So there is no limitation for malloced memory? Say if my driver would like to have 4 or 8 gig lookup cache that would work? Pete