Merge branches 'apple/dart', 'arm/smmu', 'iommu/fixes', 'x86/amd', 'x86/vt-d' and...

[sfrench/cifs-2.6.git] / drivers / iommu / Kconfig

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 6e06f876d75a05c138ed9e0ff6967ed75ab66a89..f14f2e40107349de24fd5827d1e5f6d3d6e9ffea 100644 (file)
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -290,6 +290,20 @@ 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.
 
+config APPLE_DART
+       tristate "Apple DART IOMMU Support"
+       depends on ARCH_APPLE || (COMPILE_TEST && !GENERIC_ATOMIC64)
+       select IOMMU_API
+       select IOMMU_IO_PGTABLE_LPAE
+       default ARCH_APPLE
+       help
+         Support for Apple DART (Device Address Resolution Table) IOMMUs
+         found in Apple ARM SoCs like the M1.
+         This IOMMU is required for most peripherals using DMA to access
+         the main memory.
+
+         Say Y here if you are using an Apple SoC.
+
 # ARM IOMMU support
 config ARM_SMMU
        tristate "ARM Ltd. System MMU (SMMU) Support"