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SubjectRe: [PATCH] PCI: Add pci_assign_resource_fixed -- allow fixed address assignments
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On Apr 27, 2006, at 5:34 PM, Andrew Morton wrote:

> Kumar Gala <galak@kernel.crashing.org> wrote:
>>
>> On some embedded systems the PCI address for hotplug devices are
>> not only
>> known a priori but are required to be at a given PCI address for
>> other
>> master in the system to be able to access.
>>
>> An example of such a system would be an FPGA which is setup from
>> user space
>> after the system has booted. The FPGA may be access by DSPs in
>> the system
>> and those DSPs expect the FPGA at a fixed PCI address.
>>
>> Added pci_assign_resource_fixed() as a way to allow assignment of
>> the PCI
>> devices's BARs at fixed PCI addresses.
>
> Is there any sane way in which we can arrange for this function to
> not be
> present in vmlinux's which don't need it?
>
> Options would be
>
> a) Put it in a .a file.
>
> - messy from a source perspective
>
> - doesn't work if the only reference is from a module
>
> - small gains anyway.
>
> b) Use CONFIG_EMBEDDED.

I'm fine with wrapping it in a CONFIG_EMBEDDED, Greg?

- k
-
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