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authorSteven Price <steven.price@arm.com>2023-03-31 11:51:54 +0200
committerJoerg Roedel <jroedel@suse.de>2023-04-13 11:50:45 +0200
commit25c2325575cc7f960c9f81f2b77606478f6b911f (patch)
tree855b1e0b41e18601d585a1a77d706a49fb47dba4 /drivers/iommu/omap-iommu.c
parentLinux 6.3-rc3 (diff)
downloadlinux-25c2325575cc7f960c9f81f2b77606478f6b911f.tar.xz
linux-25c2325575cc7f960c9f81f2b77606478f6b911f.zip
iommu/rockchip: Add missing set_platform_dma_ops callback
Similar to exynos, we need a set_platform_dma_ops() callback for proper operation on ARM 32 bit after recent changes in the IOMMU framework (detach ops removal). But also the use of a NULL domain is confusing. Rework the code to add support for IOMMU_DOMAIN_IDENTITY and a singleton rk_identity_domain which is assigned to domain when using an identity mapping rather than "detaching". This makes the code easier to reason about. Signed-off-by: Steven Price <steven.price@arm.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20230331095154.2671129-1-steven.price@arm.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/omap-iommu.c')
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