From: Tvrtko Ursulin
With the current way of allocating backing store which over-estimates
the number of sg entries required we typically waste around 1-6 MiB of
memory on unused sg entries at runtime.
We can instead have the intermediate step of storing our pages in an
array and use __sg_alloc_
On Fri, Oct 21, 2016 at 03:11:22PM +0100, Tvrtko Ursulin wrote:
> @@ -2236,18 +2233,16 @@ i915_gem_object_get_pages_gtt(struct
> drm_i915_gem_object *obj)
> BUG_ON(obj->base.read_domains & I915_GEM_GPU_DOMAINS);
> BUG_ON(obj->base.write_domain & I915_GEM_GPU_DOMAINS);
>
> - max_s
On 21/10/2016 15:27, Chris Wilson wrote:
On Fri, Oct 21, 2016 at 03:11:22PM +0100, Tvrtko Ursulin wrote:
@@ -2236,18 +2233,16 @@ i915_gem_object_get_pages_gtt(struct
drm_i915_gem_object *obj)
BUG_ON(obj->base.read_domains & I915_GEM_GPU_DOMAINS);
BUG_ON(obj->base.write_domain &
