Patch 2/2 has the description, but suffice it to say I'm not really pleased with this, though it does solve a problem we have. On some machines, we get MMIO space allocated on top of this hidden memory, which can cause problems. I'm not sure if there are similar problems for other hunks of the address space; if so it's possible this could be made more general (though the bits for looking up the address of this region are definitely Intel graphics specific).
Chris has some patches on top to add a new E820 type so we can look up the region later, which removes some redundant code in the i915 driver at least. Any comments? I assume no one likes this, but maybe it's just another early quirk we'll have to live with... Thanks, Jesse -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
