On Fri, Jan 03, 2014 at 01:22:31PM +0100, Arnd Bergmann wrote: > However the part that made me wonder is that an e1000e with a PCI bridge > actually /should/not/ need to allocate an I/O space window with a precious > mbus resource, since AFAIK this adapter does not have an I/O space BARs. IIRC the e1000 still has a legacy IO port BAR.. (guessing it is used for PXE boot on x86?) My patch set to allow the DT to turn off IO port allocation is already in mainline - drop the IO ranges from the DT and no IO resources are consumed at all. Though, that is an interesting point, a small refinement would be to not allocate the pci io map if IO is turned off as well.. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
