Re: [patch] Make MMCONFIG space (extended PCI config space) a driveropt-in issue

[Jeff Garzik]

Linus Torvalds wrote:
> Well, the *current* behaviour as far as setup is concerned is 
> unacceptable. But yes, longer term, we should be able to just have quirk 
> entries for saying "enable mmconfig because I know it's safe", except we 
> should not enable them until after the core PCI probing has completed.


IMO that should be an arch decision, buried somewhere in arch/x86.

If other arches implement extended config space sanely -- and possibly 
via some arch-specific means that is /not/ mmconfig -- then they should 
be able to make an arch decision that extended PCI config space accesses 
Just Work(tm).

For such arches, pci_enable_ext_cfg_space(pdev) would be a no-op, always 
returning success.

	Jeff


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/