In sn_io_slot_fixup(), the parent is re-set from the bus to
io(port|mem)_resource because the address is changed in a way that it's not
child of the bus any more.
However, only the root is set but not the parent/child/sibling relationship in
the resource tree which causes 'cat /proc/iomem' to stop after this memory
area. Depding on the poition in the tree the iomem may be nearly completely
empty.
Signed-off-by: Bernhard Walle <[EMAIL PROTECTED]>
---
arch/ia64/sn/kernel/io_init.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
Index: b/arch/ia64/sn/kernel/io_init.c
===================================================================
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -247,10 +247,18 @@ sn_io_slot_fixup(struct pci_dev *dev)
addr = ((addr << 4) >> 4) | __IA64_UNCACHED_OFFSET;
dev->resource[idx].start = addr;
dev->resource[idx].end = addr + size;
+
+ /*
+ * if it's already in the device structure, remove it before
+ * inserting
+ */
+ if (dev->resource[idx].parent &&
dev->resource[idx].parent->child)
+ release_resource(&dev->resource[idx]);
+
if (dev->resource[idx].flags & IORESOURCE_IO)
- dev->resource[idx].parent = &ioport_resource;
+ insert_resource(&ioport_resource, &dev->resource[idx]);
else
- dev->resource[idx].parent = &iomem_resource;
+ insert_resource(&iomem_resource, &dev->resource[idx]);
/* If ROM, mark as shadowed in PROM */
if (idx == PCI_ROM_RESOURCE)
dev->resource[idx].flags |= IORESOURCE_ROM_BIOS_COPY;
-
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