I915_BO_CACHE_COHERENT_FOR_WRITE
if (obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_WRITE ||
if (!(obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_WRITE))
I915_BO_CACHE_COHERENT_FOR_WRITE);
!(obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_WRITE);