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| /linux/drivers/iommu/ |
| H A D | rockchip-iommu.c | diff 25c2325575cc7f960c9f81f2b77606478f6b911f Fri Mar 31 11:51:54 CEST 2023 Steven Price <steven.price@arm.com> 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>
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