ARM: IOMMU: Tegra20: Add iommu_ops for GART driver
Tegra 20 IOMMU H/W, GART (Graphics Address Relocation Table). This
patch implements struct iommu_ops for GART for the upper IOMMU API.
This H/W module supports only single virtual address space(domain),
and manages a single level 1-to-1 mapping H/W translation page table.
[With small fixes by Joerg Roedel]
Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 6bea696..76c86da 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -142,4 +142,14 @@
Say N unless you know you need this.
+config TEGRA_IOMMU_GART
+ bool "Tegra GART IOMMU Support"
+ depends on ARCH_TEGRA_2x_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 GART (Graphics Address Relocation Table)
+ hardware included on Tegra SoCs.
+
endif # IOMMU_SUPPORT