On Thu, Dec 4, 2014 at 8:37 AM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote: >> pci=realloc should workaround the problem, as it would take control of >> the bridge mmio BAR, and allocate more range for mmio pref under it. > > I don't think pci=realloc is the answer because > > 1) It's a poor user experience. We should be able to handle this > automatically, without asking the user to do anything. we can detect that when bridge support 64bit mmio pref, and reject child device pref that only support mmio pref non-b64bit. > > 2) It puts the radeon framebuffer in the non-prefetchable window, and we > should be able to keep it in the prefetchable window. clear bridge 64bit flags if all children does not support that? even that slot supports hotplug. Yinghai -- 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
