From: Ritesh Harjani <ritesh.harj...@gmail.com> There has been various ongoing discussions on making arm iommu's dma-mapping stuff to be common code which is arch independent[1]. Current users of this code will be arm and arm64, but later other archs can start utilizing this as well.
Based on these discussion there has been work going on to refactor common arch independent code of arm iommu's dma-mapping to lib/iommu-helper.c [2]. Since now dma_iommu_mapping stuff will be arch independent, so it make sense to move out struct dma_iommu_mapping *mapping variable from arch/arm/*/device.h to include/linux/device.h as a first step [3]. Also, to move out complete structure definition of dma_iommu_mapping to include/linux/iommu-helper.h Links: [1]: https://www.mail-archive.com/iommu@lists.linux-foundation.org/msg03458.html [2]: http://www.spinics.net/lists/arm-kernel/msg336343.html [3]: http://www.spinics.net/lists/arm-kernel/msg336682.html Ritesh Harjani (1): device.h: arm,dma-iommu: Move out dma_iommu_mapping struct arch/arm/Kconfig | 4 ++++ arch/arm/include/asm/device.h | 9 --------- arch/arm/include/asm/dma-iommu.h | 16 +--------------- arch/arm/mm/dma-mapping.c | 20 ++++++++++---------- drivers/gpu/drm/exynos/exynos_drm_iommu.c | 10 +++++----- include/linux/device.h | 4 ++++ include/linux/iommu-helper.h | 22 ++++++++++++++++++++++ 7 files changed, 46 insertions(+), 39 deletions(-) -- 1.8.1.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
