Messages in this thread | | | From | Will Deacon <> | Subject | Re: [PATCH v4 0/7] MediaTek IOMMU improve tlb flush performance in map/unmap | Date | Wed, 27 Jan 2021 13:19:53 +0000 |
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On Thu, 7 Jan 2021 20:29:02 +0800, Yong Wu wrote: > This patchset is to improve tlb flushing performance in iommu_map/unmap > for MediaTek IOMMU. > > For iommu_map, currently MediaTek IOMMU use IO_PGTABLE_QUIRK_TLBI_ON_MAP > to do tlb_flush for each a memory chunk. this is so unnecessary. we could > improve it by tlb flushing one time at the end of iommu_map. > > [...]
After discussion with Joerg, I'll queue this (and hopefully the next posting of your IOMMU driver) along with the Arm SMMU patches, and then send that all together.
Applied to will (for-joerg/mtk), thanks!
[1/7] iommu: Move iotlb_sync_map out from __iommu_map https://git.kernel.org/arm64/c/d8c1df02ac7f [2/7] iommu: Add iova and size as parameters in iotlb_sync_map https://git.kernel.org/arm64/c/2ebbd25873ce [3/7] iommu/mediatek: Add iotlb_sync_map to sync whole the iova range https://git.kernel.org/arm64/c/20143451eff0 [4/7] iommu: Switch gather->end to the inclusive end https://git.kernel.org/arm64/c/862c3715de8f [5/7] iommu/io-pgtable: Allow io_pgtable_tlb ops optional https://git.kernel.org/arm64/c/77e0992aee4e [6/7] iommu/mediatek: Gather iova in iommu_unmap to achieve tlb sync once https://git.kernel.org/arm64/c/f21ae3b10084 [7/7] iommu/mediatek: Remove the tlb-ops for v7s https://git.kernel.org/arm64/c/0954d61a59e3
Cheers, -- Will
https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev
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