On Friday, March 16, 2007 10:20 am Bjorn Helgaas wrote: > Are there really ia64 machines where we need to use the option ROM > copy at 0xC0000? If so, is this documented somewhere? I couldn't > find any mention in DIG64, EFI, or internal HP architecture specs. > > If we do need to use it, ia64 has a bit of a problem because on some > boxes, the 0xC0000 memory supports only cacheable access, the VGA > frame buffer at 0xA0000 supports only uncacheable access, and the > usual ia64 ioremap mapping is a 16MB page that covers both.
Apparently Eichiro's machine needs it, and of course there are i386 and x86_64 machines that need it to, so it makes sense that it be generic. Jesse - 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/