Hello all,
In the LinuxBIOS-AMD64 document the author explains the "pci" keyword
> The first occurrence of the pci keyword tells LinuxBIOS where the bridge device start,
> relative to PCI configuration space used by the bridge. The following occurences of
> the pci keyword describe the provided devices.
then gives an example > northbridge amd/amdk8 "mc1" > pci 0:19.0 > pci 0:19.0 > pci 0:19.0 > pci 0:19.1 > pci 0:19.2 > pci 0:19.3 > end
I'm not clear why the example repeate "pci 0:19.0" three times?
I noticed in chip.c the chip_enumerate() function checks the same path
> identical_paths = (i > 0) && (path_eq(&chip->path[i - 1].path, &chip->path[i].path));
but I can't find out the real intent.
Another question maybe related to the former one is, in "device" structure
what does the "link[MAX_LINKS]" and "links" member describe?
Does "link[MAX_LINKS]" describes the secondary or subordinate bus of a bridge device?
Why MAX_LINKS is defined to 3?
Thanks in advance.
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