ARM: IOMMU: Tegra30: Add iommu_ops for SMMU driver

Tegra 30 IOMMU H/W, SMMU (System Memory Management Unit). This patch
implements struct iommu_ops for SMMU for the upper IOMMU API.

This H/W module supports multiple virtual address spaces(domain x4),
and manages 2 level H/W translation pagetable.

Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 76c86da2b411..3bd9fff5c589 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -152,4 +152,14 @@ config TEGRA_IOMMU_GART
           space through the GART (Graphics Address Relocation Table)
           hardware included on Tegra SoCs.
 
+config TEGRA_IOMMU_SMMU
+        bool "Tegra SMMU IOMMU Support"
+        depends on ARCH_TEGRA_3x_SOC
+        select IOMMU_API
+        help
+          Enables support for remapping discontiguous physical memory
+          shared with the operating system into contiguous I/O virtual
+          space through the SMMU (System Memory Management Unit)
+          hardware included on Tegra SoCs.
+
 endif # IOMMU_SUPPORT