> All I know is that it is present and its size is known. If I have a way of > knowing > what range of mmio memory is unclaimed; I could grab that perhaps using > the request_mem_region() call, I know the size that is reserved for this > device. > So, is there a way to query the system for the first unclaimed address in the > mmio > range.
You can add memory region resources yes. See the code in drivers/pci which allocates mmio space to unassigned BARs and/or moves stuff around. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/