Will Deacon 56f8af5e9d iommu: Pass struct iommu_iotlb_gather to ->unmap() and ->iotlb_sync() ...

To allow IOMMU drivers to batch up TLB flushing operations and postpone
them until ->iotlb_sync() is called, extend the prototypes for the
->unmap() and ->iotlb_sync() IOMMU ops callbacks to take a pointer to
the current iommu_iotlb_gather structure.

All affected IOMMU drivers are updated, but there should be no
functional change since the extra parameter is ignored for now.

Signed-off-by: Will Deacon <will@kernel.org>

2019-07-29 17:22:52 +01:00

9.2 KiB

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