[PATCH 1/3] drm/exynos: add iommu support for exynos drm framework

This patch adds iommu support for exynos drm framework with dma mapping api. In this patch, we used dma mapping api to allocate physical memory and maps it with iommu table and removed some existing codes and added new some codes for iommu support. GEM allocation requires one device object to use

[PATCH 1/3] drm/exynos: add iommu support for exynos drm framework

This patch adds iommu support for exynos drm framework with dma mapping api. In this patch, we used dma mapping api to allocate physical memory and maps it with iommu table and removed some existing codes and added new some codes for iommu support. GEM allocation requires one device object to use