From mboxrd@z Thu Jan 1 00:00:00 1970 From: joro@8bytes.org (Joerg Roedel) Date: Fri, 4 Jul 2014 13:05:30 +0200 Subject: [RFC 01/10] iommu: Add IOMMU device registry In-Reply-To: <1403815790-8548-2-git-send-email-thierry.reding@gmail.com> References: <1403815790-8548-1-git-send-email-thierry.reding@gmail.com> <1403815790-8548-2-git-send-email-thierry.reding@gmail.com> Message-ID: <20140704110529.GF13434@8bytes.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Jun 26, 2014 at 10:49:41PM +0200, Thierry Reding wrote: > Add an IOMMU device registry for drivers to register with and implement > a method for users of the IOMMU API to attach to an IOMMU device. This > allows to support deferred probing and gives the IOMMU API a convenient > hook to perform early initialization of a device if necessary. Can you elaborate on why exactly you need this? The IOMMU-API is designed to hide any details from the user about the available IOMMUs in the system and which IOMMU handles which device. This looks like it is going in a completly different direction from that. Joerg