David Weinehall 4133c7f85b tests/pm_rpm: Fix CRASH on machines that lack LLC
On machines that lack an LLC the pm-caching subtest will
terminate with sigbus and thus CRASH during the
I915_CACHING_CACHED iteration. To work around this we reset
the caching to I915_CACHING_NONE before doing memory access.

v2: Various improvements based on feedback from Chris Wilson

v3: Fix incorrect Signed-off-by: line

v4: Further improvements based on feedback from Chris Wilson

Signed-off-by: David Weinehall <david.weinehall@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Marius Vlad <marius.c.vlad@intel.com>
2016-03-03 12:38:01 +02:00
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