diff options
Diffstat (limited to 'drivers/iommu/Kconfig')
| -rw-r--r-- | drivers/iommu/Kconfig | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 31f0f376ad11..d66ace717cf4 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -356,7 +356,7 @@ config SPAPR_TCE_IOMMU # ARM IOMMU support config ARM_SMMU - bool "ARM Ltd. System MMU (SMMU) Support" + tristate "ARM Ltd. System MMU (SMMU) Support" depends on (ARM64 || ARM) && MMU select IOMMU_API select IOMMU_IO_PGTABLE_LPAE @@ -368,6 +368,18 @@ config ARM_SMMU Say Y here if your SoC includes an IOMMU device implementing the ARM SMMU architecture. +config ARM_SMMU_LEGACY_DT_BINDINGS + bool "Support the legacy \"mmu-masters\" devicetree bindings" + depends on ARM_SMMU=y && OF + help + Support for the badly designed and deprecated "mmu-masters" + devicetree bindings. This allows some DMA masters to attach + to the SMMU but does not provide any support via the DMA API. + If you're lucky, you might be able to get VFIO up and running. + + If you say Y here then you'll make me very sad. Instead, say N + and move your firmware to the utopian future that was 2016. + config ARM_SMMU_DISABLE_BYPASS_BY_DEFAULT bool "Default to disabling bypass on ARM SMMU v1 and v2" depends on ARM_SMMU |