tree 3128cb506d050a4007d2724939af15e512d7c5b4
parent 928cf8c62763349efc550a12f6518e52c3390906
author Andi Kleen <ak@suse.de> 1134454631 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1134455476 -0800

[PATCH] i386/x86-64 Correct for broken MCFG tables on K8 systems

They report all busses as MMCONFIG capable, but it never works for the
internal devices in the CPU's builtin northbridge.

It just probes all func 0 devices on bus 0 (the internal northbridge is
currently always on bus 0) and if they are not accessible using MCFG they are
put into a special fallback bitmap.

On systems where it isn't we assume the BIOS vendor supplied correct MCFG.

Requires the earlier patch for mmconfig type1 fallback

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>