diff options
Diffstat (limited to 'drivers/iommu/Kconfig')
| -rw-r--r-- | drivers/iommu/Kconfig | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index a1e75cba18e0..dd1dc39f84ff 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -39,6 +39,25 @@ config IOMMU_IO_PGTABLE_LPAE_SELFTEST If unsure, say N here. +config IOMMU_IO_PGTABLE_ARMV7S + bool "ARMv7/v8 Short Descriptor Format" + select IOMMU_IO_PGTABLE + depends on HAS_DMA && (ARM || ARM64 || COMPILE_TEST) + help + Enable support for the ARM Short-descriptor pagetable format. + This supports 32-bit virtual and physical addresses mapped using + 2-level tables with 4KB pages/1MB sections, and contiguous entries + for 64KB pages/16MB supersections if indicated by the IOMMU driver. + +config IOMMU_IO_PGTABLE_ARMV7S_SELFTEST + bool "ARMv7s selftests" + depends on IOMMU_IO_PGTABLE_ARMV7S + help + Enable self-tests for ARMv7s page table allocator. This performs + a series of page-table consistency checks during boot. + + If unsure, say N here. + endmenu config IOMMU_IOVA @@ -51,9 +70,9 @@ config OF_IOMMU # IOMMU-agnostic DMA-mapping layer config IOMMU_DMA bool - depends on NEED_SG_DMA_LENGTH select IOMMU_API select IOMMU_IOVA + select NEED_SG_DMA_LENGTH config FSL_PAMU bool "Freescale IOMMU support" @@ -243,7 +262,7 @@ config TEGRA_IOMMU_SMMU config EXYNOS_IOMMU bool "Exynos IOMMU Support" - depends on ARCH_EXYNOS && ARM && MMU + depends on ARCH_EXYNOS && MMU select IOMMU_API select ARM_DMA_USE_IOMMU help @@ -266,7 +285,7 @@ config EXYNOS_IOMMU_DEBUG config IPMMU_VMSA bool "Renesas VMSA-compatible IPMMU" depends on ARM_LPAE - depends on ARCH_SHMOBILE || COMPILE_TEST + depends on ARCH_RENESAS || COMPILE_TEST select IOMMU_API select IOMMU_IO_PGTABLE_LPAE select ARM_DMA_USE_IOMMU @@ -318,4 +337,21 @@ config S390_IOMMU help Support for the IOMMU API for s390 PCI devices. +config MTK_IOMMU + bool "MTK IOMMU Support" + depends on ARM || ARM64 + depends on ARCH_MEDIATEK || COMPILE_TEST + select ARM_DMA_USE_IOMMU + select IOMMU_API + select IOMMU_DMA + select IOMMU_IO_PGTABLE_ARMV7S + select MEMORY + select MTK_SMI + help + Support for the M4U on certain Mediatek SOCs. M4U is MultiMedia + Memory Management Unit. This option enables remapping of DMA memory + accesses for the multimedia subsystem. + + If unsure, say N here. + endif # IOMMU_SUPPORT |