From ed017d9fb17af3162f5acf922eb5731c541e1f3a Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@linux.ie>
Date: Wed, 2 Sep 2009 09:41:13 +1000
Subject: [PATCH] drm: fix drm_cache.c for arch with no support.

This produces a warn on for architectures where this gets called
but we don't have a cache flushing implementation suitable.

Signed-off-by: Dave Airlie <airlied@redhat.com>
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