Re: [PATCH v3 5/6] iommu/rockchip: use DMA API to map, to flush cache

Hi Shunqian, On Wed, Jun 15, 2016 at 9:04 PM, Shunqian Zheng wrote: > Use DMA API instead of architecture internal functions like > __cpuc_flush_dcache_area() etc. > > To support the virtual device like DRM the virtual slave iommu > added in the previous patch, attaching to which the DRM can use

[PATCH v3 5/6] iommu/rockchip: use DMA API to map, to flush cache

Use DMA API instead of architecture internal functions like __cpuc_flush_dcache_area() etc. To support the virtual device like DRM the virtual slave iommu added in the previous patch, attaching to which the DRM can use it own domain->dev for dma_map_*(), dma_sync_*() even VOP is disabled. With th