tree 1bc40108fceafd3fbc9faee38c971fa94d560b13
parent dd7264355a203c3456dbba04db471947d3b55e7e
author Yu Zhao <yu.zhao@intel.com> 1242625892 +0800
committer David Woodhouse <David.Woodhouse@intel.com> 1242642354 +0100

PCI: support the ATS capability

The PCIe ATS capability makes the Endpoint be able to request the
DMA address translation from the IOMMU and cache the translation
in the device side, thus alleviate IOMMU pressure and improve the
hardware performance in the I/O virtualization environment.

Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>