diff options
| author | Sven Peter <sven@svenpeter.dev> | 2021-08-03 15:16:51 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-08-12 14:15:02 +0300 |
| commit | 46d1fb072e76b161b0fb1ada9e37bf7e4d1f123f (patch) | |
| tree | b3514ba1db97b07af53b969bd3fe7b2ab2a295ab /drivers/iommu/Kconfig | |
| parent | 9d9cafb45c71c9fe302234807fae8f743056f88a (diff) | |
| download | linux-46d1fb072e76b161b0fb1ada9e37bf7e4d1f123f.tar.xz | |
iommu/dart: Add DART iommu driver
Apple's new SoCs use iommus for almost all peripherals. These Device
Address Resolution Tables must be setup before these peripherals can
act as DMA masters.
Tested-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Link: https://lore.kernel.org/r/20210803121651.61594-4-sven@svenpeter.dev
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/Kconfig')
| -rw-r--r-- | drivers/iommu/Kconfig | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index c84da8205be7..dfe81da483e9 100644 --- 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 ARM64 || (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" |