On Fri, Jan 23, 2015 at 04:21:49PM +0200, Laurent Pinchart wrote:
> 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 <[email protected]>
> ---
> arch/arm/mm/dma-mapping.c | 53
> +++++++++++++++++++++++++++++++++--------------
> 1 file changed, 38 insertions(+), 15 deletions(-)
I guess this patch will be merged by one of the ARM trees?
Joerg
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