[PATCH v5 6/8] drm/rockchip: Do not use DMA mapping API if attached to IOMMU domain

On 2016年06月24日 10:13, Shunqian Zheng wrote: > From: Tomasz Figa > > The API is not suitable for subsystems consisting of multiple devices > and requires severe hacks to use it. To mitigate this, this patch > implements allocation and address space management locally by using > helpers provid

[PATCH v5 6/8] drm/rockchip: Do not use DMA mapping API if attached to IOMMU domain

From: Tomasz Figa The API is not suitable for subsystems consisting of multiple devices and requires severe hacks to use it. To mitigate this, this patch implements allocation and address space management locally by using helpers provided by DRM framework, like other DRM drivers do, e.g. Tegra.