Re: [PATCH] drm/i915: Set up an MTRR covering the GTT at driver load.

From: Olivier Galibert
Date: Sat Jan 24 2009 - 06:51:39 EST

On Fri, Jan 23, 2009 at 02:54:17PM -0800, Eric Anholt wrote:
> + /* Set up a WC MTRR for non-PAT systems. This is more common than
> + * one would think, because the kernel disables PAT on first
> + * generation Core chips because WC PAT gets overridden by a UC
> + * MTRR if present. Even if a UC MTRR isn't present.

As a non-native speaker, I don't understand what the last sentence
means. X gets overridden by Y even if there's no Y doesn't make
sense. Could you do a simpler version?

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