On Thu, 9 Aug 2007, Andi Kleen wrote: > > Some broken devices have been discovered to require %al/%ax/%eax registers > for MMIO config space accesses. Modify mmconfig.c to use these registers > explicitly (rather than modify the global readb/writeb/etc inlines). > > AK: also changed i386 to always use eax > AK: moved change to extended space probing to different patch > AK: reworked with inlines according to Linus' requirements. > AK: improve comments. > > Signed-off-by: dean gaudet <[EMAIL PROTECTED]> > Signed-off-by: Andi Kleen <[EMAIL PROTECTED]>
Damn you, Andi. You had obviously never actually tested this on x86. > --- linux.orig/arch/i386/pci/mmconfig.c > +++ linux/arch/i386/pci/mmconfig.c > - writeb(value, mmcfg_virt_addr + reg); > + mmio_config_writeb(mmcfg_virt_addr, value); Notice something missing here? The new code cannot work on any machine that actually uses mmio cfg. Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/