From mboxrd@z Thu Jan 1 00:00:00 1970 From: lorenzo.pieralisi@arm.com (Lorenzo Pieralisi) Date: Thu, 13 Jul 2017 17:52:12 +0100 Subject: APM smmu implementation In-Reply-To: References: <20170109120300.GC21398@arm.com> <9d083b5e-0fe4-b649-c4f4-e1005feb9ec1@arm.com> Message-ID: <20170713165212.GA4228@red-moon> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Jul 13, 2017 at 09:08:38AM -0700, Feng Kan wrote: [...] > > Cavium are not using MMU-500 - the ThunderX SMMU is their own in-house > > microarchitecture (with its own bugs and foibles), hence it rightly gets > > its own implementation identifier. I think Lorenzo has plans to wire up > > support for the IORT "Device memory address size limit" field, which is > > the correct way for ACPI to describe the upstream bus width of your > > MMU-500 integration (and all the other IOMMU integrations facing the > > same issue). > This is great, thanks. > > Lorenzo, May I ask when will this be ready. We would very much like > this change to push out into the latest CentOS release. I should be able to post a patch at v4.13-rc1 aiming for v4.14. Lorenzo