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drm/radeon: use gart memory for DMA ring tests
authorAlex Deucher <alexander.deucher@amd.com>
Mon, 13 Oct 2014 17:20:02 +0000 (13:20 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 16 Oct 2014 22:34:07 +0000 (18:34 -0400)
Avoids HDP cache flush issues when using vram which can
cause ring test failures on certain boards.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Alexander Fyodorov <halcy@yandex.ru>
Cc: stable@vger.kernel.org

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