From 4100b8c229b328358cc4a82f5042dbf22f1c1ccb Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Wed, 13 May 2020 16:07:22 +0200 Subject: iommu: Add Allwinner H6 IOMMU driver The Allwinner H6 has introduced an IOMMU for a few DMA controllers, mostly video related: the display engine, the video decoders / encoders, the camera capture controller, etc. The design is pretty simple compared to other IOMMUs found in SoCs: there's a single instance, controlling all the masters, with a single address space. It also features a performance monitoring unit that allows to retrieve various informations (per-master and global TLB accesses, hits and misses, access latency, etc) that isn't supported at the moment. Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/d122a8670361e36fc26b4ce2674a2223d30dc4cc.1589378833.git-series.maxime@cerno.tech Signed-off-by: Joerg Roedel --- drivers/iommu/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/iommu/Kconfig') diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 2ab07ce17abb..aca76383f201 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -303,6 +303,15 @@ config ROCKCHIP_IOMMU Say Y here if you are using a Rockchip SoC that includes an IOMMU device. +config SUN50I_IOMMU + bool "Allwinner H6 IOMMU Support" + depends on ARCH_SUNXI || COMPILE_TEST + select ARM_DMA_USE_IOMMU + select IOMMU_API + select IOMMU_DMA + help + Support for the IOMMU introduced in the Allwinner H6 SoCs. + config TEGRA_IOMMU_GART bool "Tegra GART IOMMU Support" depends on ARCH_TEGRA_2x_SOC -- cgit v1.2.3