pci resource mapping problem for PCI-X mode

From: Raj, Ashok (ashok.raj@intel.com)
Date: Fri Jul 20 2001 - 18:44:43 EST


Hello

iam using the PCI macros for address, length calculations. my device has 2
bars.

kvirt = ioremap(pci_resource_start(dev, 0), pci_resource_len(dev, 0));
kvirt1 = ioremap(pci_resource_start(dev, 1), pci_resource_len(dev,1));

issue is in PCI-X mode of operation, the addr is a 64bit addr. these macros
as
implemented seem to be restricted to 32bit addr. because in pcix mode i
would need to do

kvirt = ioremap(pci_resource_start(dev, 0), pci_resource_len(dev, 0));
kvirt1 = ioremap(pci_resource_start(dev, 2), pci_resource_len(dev,2));

it works for now, since the addr msb's are 0. but if this physical addr is a
true 64bit addr
the above wont work..

in windows NT when the PNP irps come in they provide a 64bit addr, and it
takes care
to provide a 64bit value. correctly (irrespective of the fact that the high
addr is 0)

will this get fixed in a future release?

ashokr

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This archive was generated by hypermail 2b29 : Mon Jul 23 2001 - 21:00:14 EST