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authorJohn Keller <jpk@sgi.com>2006-10-04 16:49:25 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2006-12-01 14:36:57 -0800
commit8ea6091f500162e97687d7acf925f84202066b8d (patch)
treec2ee3b467cce2869dc84e1180cc9d8034fdeee3e /arch/ia64/pci
parente08cf02f32dff732b2be0c9755cf5eb676f88e48 (diff)
downloadblackbird-op-linux-8ea6091f500162e97687d7acf925f84202066b8d.tar.gz
blackbird-op-linux-8ea6091f500162e97687d7acf925f84202066b8d.zip
Altix: Add initial ACPI IO support
First phase in introducing ACPI support to SN. In this phase, when running with an ACPI capable PROM, the DSDT will define the root busses and all SN nodes (SGIHUB, SGITIO). An ACPI bus driver will be registered for the node devices, with the acpi_pci_root_driver being used for the root busses. An ACPI vendor descriptor is now used to pass platform specific information for both nodes and busses, eliminating the need for the current SAL calls. Also, with ACPI support, SN fixup code is no longer needed to initiate the PCI bus scans, as the acpi_pci_root_driver does that. However, to maintain backward compatibility with non-ACPI capable PROMs, none of the current 'fixup' code can been deleted, though much restructuring has been done. For example, the bulk of the code in io_common.c is relocated code that is now common regardless of what PROM is running, while io_acpi_init.c and io_init.c contain routines specific to an ACPI or non ACPI capable PROM respectively. A new pci bus fixup platform vector has been created to provide a hook for invoking platform specific bus fixup from pcibios_fixup_bus(). The size of io_space[] has been increased to support systems with large IO configurations. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/ia64/pci')
-rw-r--r--arch/ia64/pci/pci.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 4f7747253467..f4edfbf27134 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -469,10 +469,11 @@ pcibios_fixup_resources(struct pci_dev *dev, int start, int limit)
}
}
-static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
+void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
{
pcibios_fixup_resources(dev, 0, PCI_BRIDGE_RESOURCES);
}
+EXPORT_SYMBOL_GPL(pcibios_fixup_device_resources);
static void __devinit pcibios_fixup_bridge_resources(struct pci_dev *dev)
{
@@ -493,6 +494,7 @@ pcibios_fixup_bus (struct pci_bus *b)
}
list_for_each_entry(dev, &b->devices, bus_list)
pcibios_fixup_device_resources(dev);
+ platform_pci_fixup_bus(b);
return;
}
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