iommu/dma: Clean up Kconfig

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Although iommu-dma is a per-architecture chonce, that is currently
implemented in a rather haphazard way. Selecting from the arch Kconfig
was the original logical approach, but is complicated by having to
manage dependencies; conversely, selecting from drivers ends up hiding
the architecture dependency *too* well. Instead, let's just have it
enable itself automatically when IOMMU API support is enabled for the
relevant architectures. It can't get much clearer than that.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/2e33c8bc2b1bb478157b7964bfed976cb7466139.1660668998.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Robin Murphy 2022-08-16 18:28:03 +01:00 • committed by Joerg Roedel

parent 29e932295b

commit de9f8a91eb

4 changed files with 1 additions and 5 deletions

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1

arch/arm64/Kconfig

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3

drivers/iommu/Kconfig

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drivers/iommu/amd/Kconfig

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drivers/iommu/intel/Kconfig

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