From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754931Ab1KAOdN (ORCPT ); Tue, 1 Nov 2011 10:33:13 -0400 Received: from mail-vx0-f174.google.com ([209.85.220.174]:42823 "EHLO mail-vx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754484Ab1KAOdM (ORCPT ); Tue, 1 Nov 2011 10:33:12 -0400 Date: Tue, 1 Nov 2011 10:37:15 -0400 From: Jerome Glisse To: Thomas Hellstrom Cc: Konrad Rzeszutek Wilk , thellstrom@vmware.com, xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, j.glisse@redhat.com, airlied@redhat.com, bskeggs@redhat.com Subject: Re: [PATCH 06/11] ttm/driver: Expand ttm_backend_func to include two overrides for TTM page pool. Message-ID: <20111101143715.GA8631@homer.localdomain> References: <1319062772-2793-1-git-send-email-konrad.wilk@oracle.com> <1319062772-2793-7-git-send-email-konrad.wilk@oracle.com> <4EA28FA6.7000006@shipmail.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4EA28FA6.7000006@shipmail.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Oct 22, 2011 at 11:40:54AM +0200, Thomas Hellstrom wrote: > Konrad, > > I was hoping that we could get rid of the dma_address shuffling into > core TTM, > like I mentioned in the review. From what I can tell it's now only > used in the backend and > core ttm doesn't care about it. > > Is there a particular reason we're still passing it around? > > Thanks, > /Thomas > I am working on patchset on top of this that will move dma handling back to driver and mostly out of ttm (the page alloc helper will still do dma stuff on behalf of driver) So if my patchset is acceptable the dma situation is transionary. Cheers, Jerome