Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: Linux 2.6.27-rc5: System boot regression caused by commit a2bd7274b47124d2fc4dfdb8c0591f545ba749dd | Date | Sat, 30 Aug 2008 21:29:23 +0200 |
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On Saturday, 30 of August 2008, Linus Torvalds wrote: > > On Sat, 30 Aug 2008, Linus Torvalds wrote: > > > > We simply shouldn't try to compare the BAR start with randomly chosen > > things. > > Btw, looking at that bogus BAR#3 some more: I don't actually think it's > even an MCFG resource. > > I think it's literally the resource that describes the HT window for the > host bridge. So it's literally like the "root" resource - all external > MMIO resources that go over HT have to be in that window. > > IOW, I'm starting to think that it's not even broken. It is probably > perfectly real. It's not a "PCI bridge" in the sense that it doesn't > bridge one PCI bus to another, but it's a host bridge, and it bridges the > CPU memory accesses to another bus. > > The fact that the MCFG area happens to be at the start of that window is > probably just a random detail. > > Does anybody know how to find chipset docs for AMD/ATI chipsets? I find > CPU docs, and the GPU docs, but not the 790 chipset docs anywhere (yeah, > it looks promising with a link that says "AMD 790FX Chipset > Specifications", but the link just takes you to some trivial overview, not > any actual specs. > > Anybody?
There are some at: http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_739_15137,00.html
Well, that's 690/SB600 only and I'm not sure how useful this is.
Thanks, Rafael
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