Re: Problems with MSI-X on ia64

From: Roland Dreier <rdreier_at_cisco.com>
Date: 2006-02-18 07:21:37
BARs above 4G on i386 raise all sorts of issues.  I think Grant's
original patch (which changes phys_addr in drivers/pci/msi.c to
unsigned long) is correct as it stands, because the MSI code is going
to use that address to ioremap() the MSI-X table.  And the address
passed to ioremap is unsigned long anyway.

Some extension like ioremap_pfn() or something like that is going to
needed to handling giving the kernel access to BARs above 4G on 32-bit
archs.

 - R.
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Received on Sat Feb 18 07:22:36 2006

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