From mboxrd@z Thu Jan 1 00:00:00 1970 From: will.deacon@arm.com (Will Deacon) Date: Tue, 14 Jun 2016 15:16:46 +0100 Subject: [PATCH v2 2/7] Docs: dt: add PCI IOMMU map bindings In-Reply-To: <3a7e47d7b8839ff079568137b5b1b438cfbb44ac.1464966939.git.robin.murphy@arm.com> References: <3a7e47d7b8839ff079568137b5b1b438cfbb44ac.1464966939.git.robin.murphy@arm.com> Message-ID: <20160614141644.GI19407@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.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