diff options
Diffstat (limited to 'drivers/iommu/Kconfig')
| -rw-r--r-- | drivers/iommu/Kconfig | 117 |
1 files changed, 4 insertions, 113 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 0af39bbbe3a3..0a33d995d15d 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -151,10 +151,9 @@ config OF_IOMMU # IOMMU-agnostic DMA-mapping layer config IOMMU_DMA def_bool ARM64 || X86 || S390 - select DMA_OPS + select DMA_OPS_HELPERS select IOMMU_API select IOMMU_IOVA - select IRQ_MSI_IOMMU select NEED_SG_DMA_LENGTH select NEED_SG_DMA_FLAGS if SWIOTLB @@ -193,13 +192,14 @@ config MSM_IOMMU If unsure, say N here. source "drivers/iommu/amd/Kconfig" +source "drivers/iommu/arm/Kconfig" source "drivers/iommu/intel/Kconfig" source "drivers/iommu/iommufd/Kconfig" +source "drivers/iommu/riscv/Kconfig" config IRQ_REMAP bool "Support for Interrupt Remapping" depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI - select DMAR_TABLE if INTEL_IOMMU help Supports Interrupt remapping for IO-APIC and MSI devices. To use x2apic mode in the CPU's which support x2APIC enhancements or @@ -314,102 +314,6 @@ config APPLE_DART Say Y here if you are using an Apple SoC. -# ARM IOMMU support -config ARM_SMMU - tristate "ARM Ltd. System MMU (SMMU) Support" - depends on ARM64 || ARM || COMPILE_TEST - depends on !GENERIC_ATOMIC64 # for IOMMU_IO_PGTABLE_LPAE - select IOMMU_API - select IOMMU_IO_PGTABLE_LPAE - select ARM_DMA_USE_IOMMU if ARM - help - Support for implementations of the ARM System MMU architecture - versions 1 and 2. - - 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 - default y - help - Say Y here to (by default) disable bypass streams such that - incoming transactions from devices that are not attached to - an iommu domain will report an abort back to the device and - will not be allowed to pass through the SMMU. - - Any old kernels that existed before this KConfig was - introduced would default to _allowing_ bypass (AKA the - equivalent of NO for this config). However the default for - this option is YES because the old behavior is insecure. - - There are few reasons to allow unmatched stream bypass, and - even fewer good ones. If saying YES here breaks your board - you should work on fixing your board. This KConfig option - is expected to be removed in the future and we'll simply - hardcode the bypass disable in the code. - - NOTE: the kernel command line parameter - 'arm-smmu.disable_bypass' will continue to override this - config. - -config ARM_SMMU_QCOM - def_tristate y - depends on ARM_SMMU && ARCH_QCOM - select QCOM_SCM - help - When running on a Qualcomm platform that has the custom variant - of the ARM SMMU, this needs to be built into the SMMU driver. - -config ARM_SMMU_QCOM_DEBUG - bool "ARM SMMU QCOM implementation defined debug support" - depends on ARM_SMMU_QCOM - help - Support for implementation specific debug features in ARM SMMU - hardware found in QTI platforms. - - Say Y here to enable debug for issues such as TLB sync timeouts - which requires implementation defined register dumps. - -config ARM_SMMU_V3 - tristate "ARM Ltd. System MMU Version 3 (SMMUv3) Support" - depends on ARM64 - select IOMMU_API - select IOMMU_IO_PGTABLE_LPAE - select GENERIC_MSI_IRQ - 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 ARM_SMMU_V3_SVA - bool "Shared Virtual Addressing support for the ARM SMMUv3" - depends on ARM_SMMU_V3 - select IOMMU_SVA - select IOMMU_IOPF - select MMU_NOTIFIER - help - Support for sharing process address spaces with devices using the - SMMUv3. - - Say Y here if your system supports SVA extensions such as PCIe PASID - and PRI. - config S390_IOMMU def_bool y if S390 && PCI depends on S390 && PCI @@ -434,8 +338,7 @@ config MTK_IOMMU config MTK_IOMMU_V1 tristate "MediaTek IOMMU Version 1 (M4U gen1) Support" - depends on ARM - depends on ARCH_MEDIATEK || COMPILE_TEST + depends on (ARCH_MEDIATEK && ARM) || COMPILE_TEST select ARM_DMA_USE_IOMMU select IOMMU_API select MEMORY @@ -447,18 +350,6 @@ config MTK_IOMMU_V1 if unsure, say N here. -config QCOM_IOMMU - # Note: iommu drivers cannot (yet?) be built as modules - bool "Qualcomm IOMMU Support" - depends on ARCH_QCOM || COMPILE_TEST - depends on !GENERIC_ATOMIC64 # for IOMMU_IO_PGTABLE_LPAE - select QCOM_SCM - select IOMMU_API - select IOMMU_IO_PGTABLE_LPAE - select ARM_DMA_USE_IOMMU - help - Support for IOMMU on certain Qualcomm SoCs. - config HYPERV_IOMMU bool "Hyper-V IRQ Handling" depends on HYPERV && X86 |