tree a8ad0ca0bd2af8f59ca489ebcfc4dd50cf8bf57d
parent f1eae7c58036b30d434d84a34c6c3154bfb5b496
author Joerg Roedel <jroedel@suse.de> 1467803242 +0200
committer Joerg Roedel <jroedel@suse.de> 1468406915 +0200

iommu/amd: Implement flush queue

With the flush queue the IOMMU TLBs will not be flushed at
every dma-ops unmap operation. The unmapped ranges will be
queued and flushed at once, when the queue is full. This
makes unmapping operations a lot faster (on average) and
restores the performance of the old address allocator.

Signed-off-by: Joerg Roedel <jroedel@suse.de>