On 10/05/2015 03:23 PM, Sean O. Stalley wrote:
On Fri, Oct 02, 2015 at 03:37:54PM -0700, David Daney wrote:
...
+/*
+ * Try to assign any resources marked as IORESOURCE_PCI_FIXED, as they
+ * are skipped by pbus_assign_resources_sorted().
+ */
+static void pdev_assign_fixed_resources(struct pci_dev *dev)
+{
+ int i;
+
+ for (i = 0; i < PCI_NUM_RESOURCES; i++) {
+ struct pci_bus *b;
+ struct resource *r = &dev->resource[i];
+
+ if (r->parent || !(r->flags & IORESOURCE_PCI_FIXED) ||
+ !(r->flags & (IORESOURCE_IO | IORESOURCE_MEM)))
+ continue;
+
+ b = dev->bus;
+ while (b && !r->parent) {
+ assign_fixed_resource_on_bus(b, r);
+ b = b->parent;
+ }
+ if (!r->parent) {
+ /*
+ * If that didn't work, try to fallback to the
+ * ultimate parent.
+ */
+ if (r->flags & IORESOURCE_IO)
+ request_resource(&ioport_resource, r);
+ else
+ request_resource(&iomem_resource, r);
+ }
I don't think this check is necessary.
assign_fixed_resource_on_bus() should find these resources when it reaches the top bus.
(since since the root bus contains these resources).
You are correct. It does work fine without that last fallback bit. I
will remove that, and re-send the patches.
Thanks,
David Daney
+ }
+}
-Sean
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