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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2007-12-20 14:55:00 +1100
committerPaul Mackerras <paulus@samba.org>2007-12-20 16:18:13 +1100
commitbcf988a19458f08950551f66c110e41fac452b2b (patch)
treed0adeb1205ba09c549ed21430149998b6fc026fa /arch/powerpc/kernel
parent295f83e7aaa87d52b8d16077225a90dab61df45a (diff)
[POWERPC] Various fixes to pcibios_enable_device()
Our implementation of pcibios_enable_device() has a couple of problems. One is that it should not check IORESOURCE_UNSET, as this might be left dangling after resource assignment (shouldn't but there are bugs), but instead, we make it check resource->parent which should be a reliable indication that the resource has been successfully claimed (it's in the resource tree). Then, we also need to skip ROM resources that haven't been enabled as x86 does. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/pci-common.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 8935661d12d..b6d4767e4e2 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1147,7 +1147,10 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
r = &dev->resource[idx];
if (!(r->flags & (IORESOURCE_IO | IORESOURCE_MEM)))
continue;
- if (r->flags & IORESOURCE_UNSET) {
+ if ((idx == PCI_ROM_RESOURCE) &&
+ (!(r->flags & IORESOURCE_ROM_ENABLE)))
+ continue;
+ if (r->parent == NULL) {
printk(KERN_ERR "PCI: Device %s not available because"
" of resource collisions\n", pci_name(dev));
return -EINVAL;