• Thierry Reding's avatar
    drm/tegra: Support DMA API for display controllers · 2e8d8749
    Thierry Reding authored
    If a display controller is not attached to an explicit IOMMU domain,
    which usually means that it's connected to an IOMMU domain controlled by
    the DMA API, make sure to map the framebuffer to the display controller
    address space. This allows us to transparently handle setups where the
    display controller is attached to an IOMMU or setups where it isn't. It
    also allows the driver to work with a DMA API that is backed by an
    IOMMU.
    Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
    2e8d8749
dc.c 69.8 KB