Messages in this thread | | | Date | Fri, 11 Jan 2008 16:26:38 -0800 | From | Greg KH <> | Subject | Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in |
| |
On Sat, Jan 12, 2008 at 02:58:56AM +0300, Ivan Kokshaysky wrote: > On Fri, Jan 11, 2008 at 02:38:03PM -0700, Matthew Wilcox wrote: > > On Fri, Jan 11, 2008 at 01:28:30PM -0800, Linus Torvalds wrote: > > > Hmm. Were all those reports root-caused to just that BAR probing? If so, > > > we may be in better shape than I worried. > > > > I believe so. > > Ditto. > > One typical problem is that on "Intel(r) 3 Series Experss Chipset Family" > MMCONFIG probing of the BAR #2 (frame buffer address) of integrated graphics > device locks up the machine (depending on BIOS settings, of course). > This happens because the frame buffer of IGD has higher decode priority > than MMCONFIG range, as stated in Intel docs...
Ok, so what would the proposed patch look like to help resolve this?
Ivan, you posted one a while ago, but never seemed to get any confirmation if it helped or not. Should I use that and drop Arjan's? Or use both? Or something else like the patches proposed by Tony Camuso?
thanks,
greg k-h
| |