From mboxrd@z Thu Jan 1 00:00:00 1970 From: Will Deacon Subject: Re: [PATCH v2 2/7] Docs: dt: add PCI IOMMU map bindings Date: Tue, 14 Jun 2016 15:16:46 +0100 Message-ID: <20160614141644.GI19407@arm.com> References: <3a7e47d7b8839ff079568137b5b1b438cfbb44ac.1464966939.git.robin.murphy@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <3a7e47d7b8839ff079568137b5b1b438cfbb44ac.1464966939.git.robin.murphy-5wv7dgnIgG8@public.gmane.org> 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: Mark Rutland , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, frowand.list-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org On Fri, Jun 03, 2016 at 06:15:37PM +0100, Robin Murphy wrote: > From: Mark Rutland > > The existing IOMMU bindings are able to specify the relationship between > masters and IOMMUs, but they are insufficient for describing the general > case of hotpluggable busses such as PCI where the set of masters is not > known until runtime, and the relationship between masters and IOMMUs is > a property of the integration of the system. > > This patch adds a generic binding for mapping PCI devices to IOMMUs, > using a new iommu-map property (specific to PCI*) which may be used to > map devices (identified by their Requester ID) to sideband data for the > IOMMU which they master through. > > Acked-by: Rob Herring > Signed-off-by: Mark Rutland > --- > > v2: +Rob's ack. > > .../devicetree/bindings/pci/pci-iommu.txt | 171 +++++++++++++++++++++ > 1 file changed, 171 insertions(+) > create mode 100644 Documentation/devicetree/bindings/pci/pci-iommu.txt This looks great, thanks! Acked-by: Will Deacon Will