Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in

Ivan Kokshaysky
2008-01-30T20:18:40Z

On Wed, Jan 30, 2008 at 07:42:49AM -0800, Arjan van de Ven wrote:
> Xorg doesn't do pci express ..

Xorg core provides a set of PCI config access functions (via sysfs) for
the graphics drivers. These functions do work correctly with offsets > 256
bytes. Can you guarantee that none of PCI-E video drivers use that,
including proprietary nvidia and ati ones?

> (newer ones actually have gotten out of the "do the PCI layer ourselves" business entirely)

Unfortunately, not completely true. Though it has nothing to do with
extended config space.

Ivan.