Messages in this thread | | | Date | Thu, 4 May 2006 14:33:10 -0600 | From | Matthew Wilcox <> | Subject | Re: i386/x86_84: disable PCI resource decode on device disable |
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On Thu, May 04, 2006 at 01:01:57PM -0700, Rajesh Shah wrote: > Yeah, that's also what some other drivers do. For example, PCI/PCIE > bridges may support capabilities (like hotplug) that are controlled > by separate drivers. These drivers don't do pci_disable_device() > when they unload, since the bridge must continue to decode even > when the other capability driver is gone. > > The problem is that most PCI bridges don't have any "extra" > resources padded into the address ranges they pass down. It > would be nice to be able to reuse address space released when > a device is disabled (e.g. for future hot-add), if it's really > no longer needed.
You could always reprogram the BARs. But I really wouldn't recommend this; you'll just fragment the address space. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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