• Linus Torvalds's avatar
    Revert mmiocfg heuristics and blacklist changes · 79e453d4
    Linus Torvalds authored
    This reverts commits 11012d41 and
    40dd2d20
    
    , which allowed us to use the
    MMIO accesses for PCI config cycles even without the area being marked
    reserved in the e820 memory tables.
    
    Those changes were needed for EFI-environment Intel macs, but broke some
    newer Intel 965 boards, so for now it's better to revert to our old
    2.6.17 behaviour and at least avoid introducing any new breakage.
    
    Andi Kleen has a set of patches that work with both EFI and the broken
    Intel 965 boards, which will be applied once they get wider testing.
    
    Cc: Arjan van de Ven <arjan@infradead.org>
    Cc: Edgar Hucek <hostmaster@ed-soft.at>
    Cc: Andi Kleen <ak@suse.de>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
    79e453d4
e820.c 18.1 KB