On Thu, Oct 09, 2008 at 01:43:53PM +0200, Jean Delvare wrote: > sure why the AMB device would be any different. How comes that the PCI > devices know the AMB memory address if they aren't related? If the PCI > devices do not own this memory mapping, who does? On _most_ of my systems it's listed in the ACPI DSDT as one of the "system board resources" (SBD1). Unfortunately, this SBD1 object lists a bunch of memory regions and I/O ports, without any indication of what each of those regions is for, other than "not for general OS use". It's a little confusing here--the PCI config register has ultimate control over where the region lives, but ACPI claims it as part of its own system board "do not use" map. I suppose it wouldn't be hard to do this with a pci_device_id and MODULE_DEVICE_TABLE instead of a direct MODULE_ALIAS. But since I only need the PCI device for a brief moment I'm trying to avoid bloating the driver with all the pci_driver support code. --D
