Re: [PATCH 2/2] iommu/exynos: Workaround FLPD cache flush issues for SYSMMU v5

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On 20.03.2017 10:17, Marek Szyprowski wrote:
> For some unknown reasons, in some cases, FLPD cache invalidation doesn't
> work properly with SYSMMU v5 controllers found in Exynos5433 SoCs. This
> can be observed by a firmware crash during initialization phase of MFC
> video decoder available in the mentioned SoCs when IOMMU support is
> enabled. To workaround this issue perform a full TLB/FLPD invalidation
> in case of replacing any first level page descriptors in case of SYSMMU v5.

It fixes also crashes of MFC encoder on Exynos5433.

For both patches:
Tested-by: Andrzej Hajda <a.hajda@xxxxxxxxxxx>

Regards
Andrzej




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