Messages in this thread Patch in this message | | | From | David Daney <> | Subject | [PATCH v6 1/5] PCI: Handle IORESOURCE_PCI_FIXED when sizing resources. | Date | Tue, 20 Oct 2015 16:04:38 -0700 |
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From: David Daney <david.daney@cavium.com>
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.
Acked-by: Sean O. Stalley <sean.stalley@intel.com> Signed-off-by: David Daney <david.daney@cavium.com> --- drivers/pci/setup-bus.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 508cc56..4dfef10 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 -- 1.9.1
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