On Tue, Dec 06, 2016 at 12:22:03PM +, Chris Wilson wrote:
> On all platforms we now always read the contents of buffers via the GTT,
> i.e. using WC cpu access. Reads are slow, but they can be accelerated
> with an internal read buffer using sse4.1 (movntqda). This is our
> i915_memcpy_from_wc(
On all platforms we now always read the contents of buffers via the GTT,
i.e. using WC cpu access. Reads are slow, but they can be accelerated
with an internal read buffer using sse4.1 (movntqda). This is our
i915_memcpy_from_wc() routine which also checks for sse4.1 support and
so we can fallback
