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iommu: add Unisoc IOMMU basic driver

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This IOMMU module can be used by Unisoc's multimedia devices, such as
display, Image codec(jpeg) and a few signal processors, including
VSP(video), GSP(graphic), ISP(image), and CPP(camera pixel processor), etc.

Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Link: https://lore.kernel.org/r/20210305093216.201897-3-zhang.lyra@gmail.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Chunyan Zhang
2021-03-05 17:32:16 +08:00
committed by Joerg Roedel
parent 13d190ffac
commit b23e4fc4e3
3 changed files with 590 additions and 0 deletions
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12
drivers/iommu/Kconfig
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@@ -408,4 +408,16 @@ config VIRTIO_IOMMU
Say Y here if you intend to run this kernel as a guest.
config SPRD_IOMMU
tristate "Unisoc IOMMU Support"
depends on ARCH_SPRD || COMPILE_TEST
select IOMMU_API
help
Support for IOMMU on Unisoc's SoCs, this IOMMU can be used by
Unisoc's multimedia devices, such as display, Image codec(jpeg)
and a few signal processors, including VSP(video), GSP(graphic),
ISP(image), and CPP(camera pixel processor), etc.
Say Y here if you want to use the multimedia devices listed above.
endif # IOMMU_SUPPORT