tree cc07341098ee5e12b235da9af44b9d793ac01c06
parent 2b107d93635616db0c3f893c8cc2e6d5cd8d77b2
author Jacob Pan <jacob.jun.pan@linux.intel.com> 1273873274 -0700
committer H. Peter Anvin <hpa@linux.intel.com> 1274075136 -0700

x86, mrst, pci: return 0 for non-present pci bars

Moorestown PCI code has special handling of devices with fixed BARs. In
case of BAR sizing writes, we need to update the fake PCI MMCFG space with real
size decode value.

When a BAR is not present, we need to return 0 instead of ~0. ~0 will be
treated as device error per bugzilla 12006.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
LKML-Reference: <1273873281-17489-2-git-send-email-jacob.jun.pan@linux.intel.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>