From owner-freebsd-usb@FreeBSD.ORG Sun May 27 20:35:59 2007 Return-Path: X-Original-To: freebsd-usb@freebsd.org Delivered-To: freebsd-usb@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 0523216A468 for ; Sun, 27 May 2007 20:35:59 +0000 (UTC) (envelope-from hselasky@c2i.net) Received: from swip.net (mailfe04.swip.net [212.247.154.97]) by mx1.freebsd.org (Postfix) with ESMTP id 9B69E13C44C for ; Sun, 27 May 2007 20:35:58 +0000 (UTC) (envelope-from hselasky@c2i.net) X-Cloudmark-Score: 0.000000 [] Received: from [88.88.46.79] (account mc467741@c2i.net HELO [192.168.0.102]) by mailfe04.swip.net (CommuniGate Pro SMTP 5.1.7) with ESMTPA id 502139678 for freebsd-usb@freebsd.org; Sun, 27 May 2007 22:35:55 +0200 From: Hans Petter Selasky To: freebsd-usb@freebsd.org Date: Sun, 27 May 2007 22:35:46 +0200 User-Agent: KMail/1.9.5 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200705272235.46048.hselasky@c2i.net> Subject: 31st address line sometimes not used on EHCI/UHCI/OHCI X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 27 May 2007 20:35:59 -0000 Hi, I've got some reports back that some USB host controllers do not support transferring memory from a location higher than 2GB. What should we do about this? Should we limit all USB DMA allocations to the lower 2GB of the memory? --HPS