Re: powerpc/powernv: Exclude MSI region in extended bridge window

On Tue, 2016-21-06 at 02:41:05 UTC, Gavin Shan wrote:

The windows of root port and bridge behind that are extended to
the PHB's windows to accomodate the PCI hotplug happening in
future. The PHB's 64KB 32-bits MSI region is included in bridge's
M32 windows (in hardware) though it's excluded in the corresponding
resource, as the bridge's M32 windows have 1MB as their minimal
alignment. We observed EEH error during system boot when the MSI
region is included in bridge's M32 window.

This excludes top 1MB (including 64KB 32-bits MSI region) region
from bridge's M32 windows when extending them.

AFAICS you added that code in "powerpc/powernv: Extend PCI bridge resources", so
I'll squash it into that. That way there is no window of breakage.

cheers