OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

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>
This commit is contained in:
Jacob Pan 2010-05-14 14:41:14 -07:00 committed by H. Peter Anvin
parent 2b107d9363
commit e4af4268a3
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/pci/mrst.c
View File

@ -109,7 +109,7 @@ static int pci_device_update_fixed(struct pci_bus *bus, unsigned int devfn,
decode++;
decode = ~(decode - 1);
} else {
decode = ~0;
decode = 0;
}
/*