diff options
| author | David Daney <david.daney@cavium.com> | 2015-10-29 17:35:39 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-10-29 17:35:39 -0500 |
| commit | a2220d804bf09aae4da45dfd6cc6692e0e422926 (patch) | |
| tree | 3730ae526f29c05fe36b3b8c701bd9a9b21b9a4e | |
| parent | 0b26cd69480d4d99f39042c6621a05af7496b3da (diff) | |
| download | linux-next-a2220d804bf09aae4da45dfd6cc6692e0e422926.tar.gz | |
PCI: Handle IORESOURCE_PCI_FIXED when sizing resources
The new Enhanced Allocation (EA) capability support (patches to follow)
creates resources with the IORESOURCE_PCI_FIXED set. Since these resources
cannot be relocated or resized, their alignment is not really defined, and
it is therefore not specified. This causes a problem in pbus_size_mem()
where resources with unspecified alignment are disabled.
So, in pbus_size_mem() skip IORESOURCE_PCI_FIXED resources, instead of
disabling them.
[bhelgaas: folded in "flags & IORESOURCE_PCI_FIXED" fix from David]
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Sean O. Stalley <sean.stalley@intel.com>
| -rw-r--r-- | drivers/pci/setup-bus.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 508cc56130e3..7bea2317df14 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -1037,9 +1037,10 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, struct resource *r = &dev->resource[i]; resource_size_t r_size; - if (r->parent || ((r->flags & mask) != type && - (r->flags & mask) != type2 && - (r->flags & mask) != type3)) + if (r->parent || (r->flags & IORESOURCE_PCI_FIXED) || + ((r->flags & mask) != type && + (r->flags & mask) != type2 && + (r->flags & mask) != type3)) continue; r_size = resource_size(r); #ifdef CONFIG_PCI_IOV |