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ARM: IOMMU: Tegra30: Add iommu_ops for SMMU driver

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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 <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
This commit is contained in:
Hiroshi DOYU 2011-11-17 07:31:31 +02:00 • committed by Joerg Roedel
commit 7a31f6f48b
4 changed files with 1108 additions and 0 deletions
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10
drivers/iommu/Kconfig
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@ -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

1
drivers/iommu/Makefile
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@ -9,3 +9,4 @@ obj-$(CONFIG_OMAP_IOMMU) += omap-iommu.o
obj-$(CONFIG_OMAP_IOVMM) += omap-iovmm.o
obj-$(CONFIG_OMAP_IOMMU_DEBUG) += omap-iommu-debug.o
obj-$(CONFIG_TEGRA_IOMMU_GART) += tegra-gart.o
obj-$(CONFIG_TEGRA_IOMMU_SMMU) += tegra-smmu.o

1034
drivers/iommu/tegra-smmu.c Normal file
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