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@@ -1205,6 +1205,10 @@ static void radeon_cp_init_ring_buffer(drm_device_t * dev,
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dev_priv->writeback_works = 0;
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DRM_DEBUG("writeback test failed\n");
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}
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+ if (radeon_no_wb == 1) {
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+ dev_priv->writeback_works = 0;
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+ DRM_DEBUG("writeback forced off\n");
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+ }
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dev_priv->sarea_priv->last_frame = dev_priv->scratch[0] = 0;
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RADEON_WRITE(RADEON_LAST_FRAME_REG, dev_priv->sarea_priv->last_frame);
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