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linux/drivers
Simon Xue 7636d59e28 drm/rockchip: gem: add IOMMU_TLB_SHOT_ENTIRE when call iommu_map_sg
Add IOMMU_TLB_SHOT_ENTIRE prot for iommu_map_sg, this shoot down entire
iommu tlb one time after iommu_map_sg.This may save about 5ms when DRM
mapping 12MB buffer.

Change-Id: I618aff1b3928bd1ec1dd3d896db746e09e96acdc
Signed-off-by: Simon Xue <xxm@rock-chips.com>
2020-02-28 14:25:36 +08:00
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