From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: Re: [PATCH 3/4 v5] iommu/fsl: Add iommu domain attributes required by fsl PAMU driver. Date: Mon, 3 Dec 2012 18:27:12 +0100 Message-ID: <20121203172712.GA18368@8bytes.org> References: <1353419697-31269-1-git-send-email-Varun.Sethi@freescale.com> <1353419697-31269-4-git-send-email-Varun.Sethi@freescale.com> <20121202140323.GO30633@8bytes.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: Sethi Varun-B16395 Cc: Wood Scott-B07421 , "iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org" , Tabi Timur-B04825 , "linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org" , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: iommu@lists.linux-foundation.org On Mon, Dec 03, 2012 at 04:57:29PM +0000, Sethi Varun-B16395 wrote: > > > > -----Original Message----- > > From: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org [mailto:iommu- > > bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org] On Behalf Of Joerg Roedel > > Sent: Sunday, December 02, 2012 7:33 PM > > To: Sethi Varun-B16395 > > Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org; Wood > > Scott-B07421; linuxppc-dev-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org; Tabi Timur-B04825 > > Subject: Re: [PATCH 3/4 v5] iommu/fsl: Add iommu domain attributes > > required by fsl PAMU driver. > > > > Hmm, we need to work out a good abstraction for this. > > > > On Tue, Nov 20, 2012 at 07:24:56PM +0530, Varun Sethi wrote: > > > Added the following domain attributes required by FSL PAMU driver: > > > 1. Subwindows field added to the iommu domain geometry attribute. > > > > Are the Subwindows mapped with full size or do you map only parts of the > > subwindows? > > > [Sethi Varun-B16395] It's possible to map a part of the subwindow i.e. > size of the mapping can be less than the sub window size. Yes, I know that this is possible. But do you plan to support that or is it sufficient when the whole subwindow is mapped? Joerg