Re: [PATCH 5/7] pci: minimal alignment for bars of P2P bridges

2012-07-16 Thread Bjorn Helgaas
On Sun, Jul 15, 2012 at 9:50 PM, Gavin Shan wrote: > On Fri, Jul 13, 2012 at 02:12:50PM -0600, Bjorn Helgaas wrote: >>On Fri, Jun 29, 2012 at 02:47:48PM +0800, Gavin Shan wrote: >>> On some powerpc platforms, device BARs need to be assigned to separate >>> "segments" of the address space in order

Re: [PATCH 5/7] pci: minimal alignment for bars of P2P bridges

2012-07-13 Thread Bjorn Helgaas
On Fri, Jun 29, 2012 at 02:47:48PM +0800, Gavin Shan wrote: > On some powerpc platforms, device BARs need to be assigned to separate > "segments" of the address space in order for the error isolation and HW > virtualization mechanisms (EEH) to work properly. Those "segments" have > a minimum size t

[PATCH 5/7] pci: minimal alignment for bars of P2P bridges

2012-06-28 Thread Gavin Shan
On some powerpc platforms, device BARs need to be assigned to separate "segments" of the address space in order for the error isolation and HW virtualization mechanisms (EEH) to work properly. Those "segments" have a minimum size that can be fairly large (16M). In order to be able to use the generi