From owner-freebsd-hackers@FreeBSD.ORG Wed Dec 8 09:05:06 2004 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7451116A4CF for ; Wed, 8 Dec 2004 09:05:06 +0000 (GMT) Received: from mail3.speakeasy.net (mail3.speakeasy.net [216.254.0.203]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3DBC843D55 for ; Wed, 8 Dec 2004 09:05:06 +0000 (GMT) (envelope-from jmg@hydrogen.funkthat.com) Received: (qmail 30356 invoked from network); 8 Dec 2004 09:05:06 -0000 Received: from gate.funkthat.com (HELO hydrogen.funkthat.com) ([69.17.45.168]) (envelope-sender ) by mail3.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 8 Dec 2004 09:05:05 -0000 Received: from hydrogen.funkthat.com (fwnetw@localhost.funkthat.com [127.0.0.1])iB8955GH064055; Wed, 8 Dec 2004 01:05:05 -0800 (PST) (envelope-from jmg@hydrogen.funkthat.com) Received: (from jmg@localhost) by hydrogen.funkthat.com (8.12.10/8.12.10/Submit) id iB89548p064054; Wed, 8 Dec 2004 01:05:04 -0800 (PST) Date: Wed, 8 Dec 2004 01:05:04 -0800 From: John-Mark Gurney To: "Kamal R. Prasad" Message-ID: <20041208090504.GT19624@funkthat.com> Mail-Followup-To: "Kamal R. Prasad" , Wilko Bulte , freebsd-hackers@freebsd.org References: <41B20B19.3090204@acm.org> <20041206025126.GO19624@funkthat.com> <41B3F24B.1000903@acm.org> <20041206074237.GP19624@funkthat.com> <41B5DF9B.50501@acm.org> <20041207221919.GQ19624@funkthat.com> <20041207222115.GA74736@freebie.xs4all.nl> <41B68DF5.6070708@acm.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <41B68DF5.6070708@acm.org> User-Agent: Mutt/1.4.1i X-Operating-System: FreeBSD 4.2-RELEASE i386 X-PGP-Fingerprint: B7 EC EF F8 AE ED A7 31 96 7A 22 B3 D8 56 36 F4 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html cc: Wilko Bulte cc: freebsd-hackers@freebsd.org Subject: Re: mmap() X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: John-Mark Gurney List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Dec 2004 09:05:06 -0000 Kamal R. Prasad wrote this message on Wed, Dec 08, 2004 at 10:45 +0530: > Wilko Bulte wrote: > > >On Tue, Dec 07, 2004 at 02:19:19PM -0800, John-Mark Gurney wrote.. > > > >>Kamal R. Prasad wrote this message on Tue, Dec 07, 2004 at 22:21 +0530: > >> > >>>There was a bug in my interface routine which probably resulted in too > >>>many calls. > >>>Something like *paddr=vtophys(base) instead of > >>>*paddr=vtophys(base+offset) should result in lots of calls to the > >>>interface. > >>> > >>Just remeber that vtophys is not a supported interface in HEAD, (if it > >>still works, it will probably be removed shortly).. Also, vtophys only > >>works on limited archs, like i386 and alpha... > > > >s/limited/some/ > > So what would be the equivalent supported interface in HEAD? bus_dma(9) It's a bit more complicated though... but with out it, you won't be able to get your driver working on sparc64... > BTW -man (4) usb probably needs more info than present. I'm sure it does, feel free to send-pr patches.. :) -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."