On Thu, 28 Oct 2010 14:16:09 +0800, Zhenyu Wang wrote:
> + ret = i915_gem_object_enable_scanout(obj);
> + if (ret) {
> + kfree(intel_fb);
> + return ERR_PTR(ret);
> + }
We need to introduce a mutex_lock here. I wonder whether it is truly worth
it. Yes, user spa
Display engine on Sandybridge is not coherent with LLC, so
try to always bind display buffer as uncached on Sandybridge.
Old AGP_USER_MEMORY is bound as uncached by default, as Sandybridge
buffer would try to live in LLC with CPU as possible, so it uses
new flag AGP_USER_UNCACHED_MEMORY for uncache
