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[POWERPC] iSeries: eliminate pci_dn bussubno

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xlate_iomm_address() really wants the ds_addr to pass to the HV, so store
that value (instead of the BAR number) when we allocate the device bars.
This is not a fast path, so we can look up the device_node property
there instead of using the bussubno field of the pci_dn.

The other user of iseries_ds_addr() was already scanning the device tree,
so looking up a property will not slow it down any more.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Stephen Rothwell 2007-12-21 15:50:09 +11:00 • committed by Paul Mackerras
commit 885b86e4e7
3 changed files with 7 additions and 11 deletions
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1
include/asm-powerpc/pci-bridge.h
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@ -165,7 +165,6 @@ struct iommu_table;
struct pci_dn {
int busno; /* pci bus number */
int bussubno; /* pci subordinate bus number */
int devfn; /* pci device and function number */
struct pci_controller *phb; /* for pci devices */