From mboxrd@z Thu Jan 1 00:00:00 1970 From: heiko@sntech.de (Heiko =?ISO-8859-1?Q?St=FCbner?=) Date: Wed, 28 Jan 2015 01:25:35 +0100 Subject: [PATCH URGENT] arm: dma-mapping: Set DMA IOMMU ops in arm_iommu_attach_device() In-Reply-To: <1422022909-31044-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com> References: <1422022909-31044-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com> Message-ID: <2085044.xTrZHjchoH@diego> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Arnd, Olof, Am Freitag, 23. Januar 2015, 16:21:49 schrieb Laurent Pinchart: > Commit 4bb25789ed28228a ("arm: dma-mapping: plumb our iommu mapping ops > into arch_setup_dma_ops") moved the setting of the DMA operations from > arm_iommu_attach_device() to arch_setup_dma_ops() where the DMA > operations to be used are selected based on whether the device is > connected to an IOMMU. However, the IOMMU detection scheme requires the > IOMMU driver to be ported to the new IOMMU of_xlate API. As no driver > has been ported yet, this effectively breaks all IOMMU ARM users that > depend on the IOMMU being handled transparently by the DMA mapping API. > > Fix this by restoring the setting of DMA IOMMU ops in > arm_iommu_attach_device() and splitting the rest of the function into a > new internal __arm_iommu_attach_device() function, called by > arch_setup_dma_ops(). > > Signed-off-by: Laurent Pinchart in the original submission arm at kernel.org was not included, but it looks like the patch should go through arm-soc. We have two tags Acked-by: Will Deacon Tested-by: Heiko Stuebner Can you find the original patch somehow or should it be resend to include arm at kernel.org ? Thanks Heiko