On 04/13/2010 04:07 PM, H. Peter Anvin wrote: > On 04/13/2010 04:03 PM, Yinghai wrote: >> On 04/13/2010 04:02 PM, H. Peter Anvin wrote: >>>> >>>> Are you sure? what is BAR range? greater than 1M ? >>>> >>>> e820_reserve_resources() will make that range to be reserved and BUSY in resource tree. >>>> and if driver for that device want to call pci_request_region, it will get failure... >>>> >>> >>> Yes, > 1 MB in that case, I'm fairly sure. >> >> that is ok. actually that is handled by e820_reserve_resource_late(), and it will not put BUSY on the entry at all. >> > > OK... why is that handled differently? about one year ago, Linus made that change to use insert_resource_expand_to_fit() to honor PCI device BAR than E820_RESERVED. YH -- 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
