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| author | Bernhard Walle <bwalle@suse.de> | 2007-03-18 01:26:08 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-03-18 11:35:07 -0700 |
| commit | 647157255915b76ddfbea87ca396ace364d158c5 (patch) | |
| tree | e248f2e89ccb8526b615214db06c4868cdd8d589 | |
| parent | 4f78bb289f4ca57b93385b4df4d0defe5804588b (diff) | |
| download | linux-stable-647157255915b76ddfbea87ca396ace364d158c5.tar.gz linux-stable-647157255915b76ddfbea87ca396ace364d158c5.tar.bz2 linux-stable-647157255915b76ddfbea87ca396ace364d158c5.zip | |
[PATCH] Fix wrong /proc/iomem on SGI Altix
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 <bwalle@suse.de>
Cc: John Keller <jpk@sgi.com>
Cc: Jay Lan <jlan@engr.sgi.com>
Acked-by: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/ia64/sn/kernel/io_init.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c index 600be3ebae05..6b10e5d28488 100644 --- 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; |