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-rw-r--r--kernel/drivers/iommu/Kconfig47
1 files changed, 44 insertions, 3 deletions
diff --git a/kernel/drivers/iommu/Kconfig b/kernel/drivers/iommu/Kconfig
index 1ae4e547b..b9094e9da 100644
--- a/kernel/drivers/iommu/Kconfig
+++ b/kernel/drivers/iommu/Kconfig
@@ -23,7 +23,7 @@ config IOMMU_IO_PGTABLE
config IOMMU_IO_PGTABLE_LPAE
bool "ARMv7/v8 Long Descriptor Format"
select IOMMU_IO_PGTABLE
- depends on ARM || ARM64 || COMPILE_TEST
+ depends on HAS_DMA && (ARM || ARM64 || COMPILE_TEST)
help
Enable support for the ARM long descriptor pagetable format.
This allocator supports 4K/2M/1G, 16K/32M and 64K/512M page
@@ -42,12 +42,19 @@ config IOMMU_IO_PGTABLE_LPAE_SELFTEST
endmenu
config IOMMU_IOVA
- bool
+ tristate
config OF_IOMMU
def_bool y
depends on OF && IOMMU_API
+# IOMMU-agnostic DMA-mapping layer
+config IOMMU_DMA
+ bool
+ depends on NEED_SG_DMA_LENGTH
+ select IOMMU_API
+ select IOMMU_IOVA
+
config FSL_PAMU
bool "Freescale IOMMU support"
depends on PPC32
@@ -134,6 +141,16 @@ config INTEL_IOMMU
and include PCI device scope covered by these DMA
remapping devices.
+config INTEL_IOMMU_SVM
+ bool "Support for Shared Virtual Memory with Intel IOMMU"
+ depends on INTEL_IOMMU && X86
+ select PCI_PASID
+ select MMU_NOTIFIER
+ help
+ Shared Virtual Memory (SVM) provides a facility for devices
+ to access DMA resources through process address space by
+ means of a Process Address Space ID (PASID).
+
config INTEL_IOMMU_DEFAULT_ON
def_bool y
prompt "Enable Intel DMA Remapping Devices by default"
@@ -178,6 +195,9 @@ config OMAP_IOMMU
depends on ARM && MMU
depends on ARCH_OMAP2PLUS || COMPILE_TEST
select IOMMU_API
+ ---help---
+ The OMAP3 media platform drivers depend on iommu support,
+ if you need them say Y here.
config OMAP_IOMMU_DEBUG
bool "Export OMAP IOMMU internals in DebugFS"
@@ -219,7 +239,7 @@ config TEGRA_IOMMU_SMMU
select IOMMU_API
help
This driver supports the IOMMU hardware (SMMU) found on NVIDIA Tegra
- SoCs (Tegra30 up to Tegra124).
+ SoCs (Tegra30 up to Tegra210).
config EXYNOS_IOMMU
bool "Exynos IOMMU Support"
@@ -339,6 +359,7 @@ config SPAPR_TCE_IOMMU
Enables bits of IOMMU API required by VFIO. The iommu_ops
is not implemented as it is not necessary for VFIO.
+# ARM IOMMU support
config ARM_SMMU
bool "ARM Ltd. System MMU (SMMU) Support"
depends on (ARM64 || ARM) && MMU
@@ -352,4 +373,24 @@ config ARM_SMMU
Say Y here if your SoC includes an IOMMU device implementing
the ARM SMMU architecture.
+config ARM_SMMU_V3
+ bool "ARM Ltd. System MMU Version 3 (SMMUv3) Support"
+ depends on ARM64 && PCI
+ select IOMMU_API
+ select IOMMU_IO_PGTABLE_LPAE
+ select GENERIC_MSI_IRQ_DOMAIN
+ help
+ Support for implementations of the ARM System MMU architecture
+ version 3 providing translation support to a PCIe root complex.
+
+ Say Y here if your system includes an IOMMU device implementing
+ the ARM SMMUv3 architecture.
+
+config S390_IOMMU
+ def_bool y if S390 && PCI
+ depends on S390 && PCI
+ select IOMMU_API
+ help
+ Support for the IOMMU API for s390 PCI devices.
+
endif # IOMMU_SUPPORT