Messages in this thread | | | Date | Thu, 27 Apr 2006 17:17:58 -0700 | From | Greg KH <> | Subject | Re: [PATCH] PCI: Add pci_assign_resource_fixed -- allow fixed address assignments |
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On Thu, Apr 27, 2006 at 07:12:14PM -0500, Kumar Gala wrote: > > 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?
That's fine with me. Care to send me an updated patch? I'll drop the other one then.
thanks,
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