diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2007-12-20 14:55:00 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-12-20 16:18:13 +1100 |
| commit | bcf988a19458f08950551f66c110e41fac452b2b (patch) | |
| tree | d0adeb1205ba09c549ed21430149998b6fc026fa /arch/powerpc/kernel/pci-common.c | |
| parent | 295f83e7aaa87d52b8d16077225a90dab61df45a (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/pci-common.c')
| -rw-r--r-- | arch/powerpc/kernel/pci-common.c | 5 |
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; |