tree 9ef87bc8413673daf8a074c8baf0f052eb03950c
parent 781a868f3136c6eb8e8c5c19d148416d7da86610
author Wei Yang <weiyang@linux.vnet.ibm.com> 1427271838 +0800
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1427767358 +1100

powerpc/powernv: Reserve additional space for IOV BAR, with m64_per_iov supported

M64 aperture size is limited on PHB3.  When the IOV BAR is too big, this
will exceed the limitation and failed to be assigned.

Introduce a different mechanism based on the IOV BAR size:

  - if IOV BAR size is smaller than 64MB, expand to total_pe
  - if IOV BAR size is bigger than 64MB, roundup power2

[bhelgaas: make dev_printk() output more consistent, use PCI_SRIOV_NUM_BARS]
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>