From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joerg Roedel Subject: Re: [PATCH 0/4] arm64: IOMMU-backed DMA mapping Date: Fri, 29 May 2015 11:03:22 +0200 Message-ID: <20150529090322.GF13130@8bytes.org> References: 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: Robin Murphy Cc: laurent.pinchart+renesas-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org, arnd-r2nGTMty4D4@public.gmane.org, catalin.marinas-5wv7dgnIgG8@public.gmane.org, will.deacon-5wv7dgnIgG8@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, djkurtz-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, yong.wu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, thunder.leizhen-hv44wF8Li93QT0dZR+AlfA@public.gmane.org, yingjoe.chen-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: iommu@lists.linux-foundation.org Hi Robin, Thanks for your work. We are really moving forward to a common DMA-API implementation for all iommu drivers. On Wed, May 27, 2015 at 03:09:14PM +0100, Robin Murphy wrote: > In the meantime, Laurent's proposal for probe deferral[2] offers hope > that the bus notifier dance may only need to be short-lived, and I'm > hoping to spend some more time on DT-based IOMMU group handling for > platform devices, which should hopefully tie in with default domains > to make the add_device callback mostly redundant. Yes, this would be great. I think it makes a lot of sense to make use of the default domain feature. Can you have a look at how well this integrates with my current patches for default domains and provide some feedback? Thanks, Joerg