[PATCH 0/2] pcie/designware: Viewport assignment update

[Pratyush Anand <panand@redhat.com>]

Most of the designware PCIe platforms have more than 2 viewports. So, patch
1/2 allows to fix viewport-2 for IO transaction for such cases.
When we have only two viewports, then patch 2/2 exchange viewport
assignment of memory and cfg transaction. It helps to fix a possibility of
corruption for memory transaction. However, there still exist possibility
of an IO transaction to be corrupted. We can not do much for <=2 viewports.
See, patch log for detail.

Dong Bo (1):
  pcie/designware: Exchange viewport of `MEMORYs' and `CFGs/IOs'

Pratyush Anand (1):
  pcie/designware: Keep viewport fixed for IO transaction if
    num_viewport > 2

 .../devicetree/bindings/pci/designware-pcie.txt    |  3 ++
 drivers/pci/host/pcie-designware.c                 | 32 +++++++++++++++-------
 drivers/pci/host/pcie-designware.h                 |  1 +
 3 files changed, 26 insertions(+), 10 deletions(-)

-- 
2.5.5