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authorPaul Mackerras <paulus@samba.org>2005-09-05 19:31:03 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2005-09-09 16:58:45 -0400
commitcdb9b9f730eac4f947a2c552806a3a550bf019ef (patch)
tree3d27b74d3421a261ebe6934e278bf725ebc7a3e4 /drivers/pci/probe.c
parentc87f883edbe969ca68c21dfa8a29674c828c22a3 (diff)
[PATCH] PCI: Small rearrangement of PCI probing code
This patch makes some small rearrangements of the PCI probing code in order to make it possible for arch code to set up the PCI tree without needing to duplicate code from the PCI layer unnecessarily. PPC64 will use this to set up the PCI tree from the Open Firmware device tree, which we need to do on logically-partitioned pSeries systems. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/probe.c')
-rw-r--r--drivers/pci/probe.c50
1 files changed, 33 insertions, 17 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index b9c9b03919d4..35caec13023a 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -753,27 +753,19 @@ pci_scan_device(struct pci_bus *bus, int devfn)
753 kfree(dev); 753 kfree(dev);
754 return NULL; 754 return NULL;
755 } 755 }
756 device_initialize(&dev->dev);
757 dev->dev.release = pci_release_dev;
758 pci_dev_get(dev);
759
760 dev->dev.dma_mask = &dev->dma_mask;
761 dev->dev.coherent_dma_mask = 0xffffffffull;
762 756
763 return dev; 757 return dev;
764} 758}
765 759
766struct pci_dev * __devinit 760void __devinit pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
767pci_scan_single_device(struct pci_bus *bus, int devfn)
768{ 761{
769 struct pci_dev *dev; 762 device_initialize(&dev->dev);
763 dev->dev.release = pci_release_dev;
764 pci_dev_get(dev);
770 765
771 dev = pci_scan_device(bus, devfn); 766 dev->dev.dma_mask = &dev->dma_mask;
772 pci_scan_msi_device(dev); 767 dev->dev.coherent_dma_mask = 0xffffffffull;
773 768
774 if (!dev)
775 return NULL;
776
777 /* Fix up broken headers */ 769 /* Fix up broken headers */
778 pci_fixup_device(pci_fixup_header, dev); 770 pci_fixup_device(pci_fixup_header, dev);
779 771
@@ -785,6 +777,19 @@ pci_scan_single_device(struct pci_bus *bus, int devfn)
785 spin_lock(&pci_bus_lock); 777 spin_lock(&pci_bus_lock);
786 list_add_tail(&dev->bus_list, &bus->devices); 778 list_add_tail(&dev->bus_list, &bus->devices);
787 spin_unlock(&pci_bus_lock); 779 spin_unlock(&pci_bus_lock);
780}
781
782struct pci_dev * __devinit
783pci_scan_single_device(struct pci_bus *bus, int devfn)
784{
785 struct pci_dev *dev;
786
787 dev = pci_scan_device(bus, devfn);
788 if (!dev)
789 return NULL;
790
791 pci_device_add(dev, bus);
792 pci_scan_msi_device(dev);
788 793
789 return dev; 794 return dev;
790} 795}
@@ -881,7 +886,8 @@ unsigned int __devinit pci_do_scan_bus(struct pci_bus *bus)
881 return max; 886 return max;
882} 887}
883 888
884struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent, int bus, struct pci_ops *ops, void *sysdata) 889struct pci_bus * __devinit pci_create_bus(struct device *parent,
890 int bus, struct pci_ops *ops, void *sysdata)
885{ 891{
886 int error; 892 int error;
887 struct pci_bus *b; 893 struct pci_bus *b;
@@ -938,8 +944,6 @@ struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent, int bus,
938 b->resource[0] = &ioport_resource; 944 b->resource[0] = &ioport_resource;
939 b->resource[1] = &iomem_resource; 945 b->resource[1] = &iomem_resource;
940 946
941 b->subordinate = pci_scan_child_bus(b);
942
943 return b; 947 return b;
944 948
945sys_create_link_err: 949sys_create_link_err:
@@ -957,6 +961,18 @@ err_out:
957 kfree(b); 961 kfree(b);
958 return NULL; 962 return NULL;
959} 963}
964EXPORT_SYMBOL_GPL(pci_create_bus);
965
966struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent,
967 int bus, struct pci_ops *ops, void *sysdata)
968{
969 struct pci_bus *b;
970
971 b = pci_create_bus(parent, bus, ops, sysdata);
972 if (b)
973 b->subordinate = pci_scan_child_bus(b);
974 return b;
975}
960EXPORT_SYMBOL(pci_scan_bus_parented); 976EXPORT_SYMBOL(pci_scan_bus_parented);
961 977
962#ifdef CONFIG_HOTPLUG 978#ifdef CONFIG_HOTPLUG