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[IA64] SN: Correct ROM resource length for BIOS copy

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On SN systems, when setting the IORESOURCE_ROM_BIOS_COPY resource flag,
the resource length should be set to the actual size of the ROM image
so that a call to pci_map_rom() returns the correct size.

Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
John Keller
2007-07-09 11:42:24 -07:00
committed by Tony Luck
parent 83ce6ef840
commit d7ad2254fa
4 changed files with 70 additions and 41 deletions
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20
arch/ia64/sn/kernel/io_init.c
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@@ -259,9 +259,23 @@ sn_io_slot_fixup(struct pci_dev *dev)
insert_resource(&ioport_resource, &dev->resource[idx]);
else
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;
/*
* If ROM, set the actual ROM image size, and mark as
* shadowed in PROM.
*/
if (idx == PCI_ROM_RESOURCE) {
size_t image_size;
void __iomem *rom;
rom = ioremap(pci_resource_start(dev, PCI_ROM_RESOURCE),
size + 1);
image_size = pci_get_rom_size(rom, size + 1);
dev->resource[PCI_ROM_RESOURCE].end =
dev->resource[PCI_ROM_RESOURCE].start +
image_size - 1;
dev->resource[PCI_ROM_RESOURCE].flags |=
IORESOURCE_ROM_BIOS_COPY;
}
}
/* Create a pci_window in the pci_controller struct for
* each device resource.