[Intel-gfx] [PATCH v2 2/2] drm/i915: Shrink the GEM kmem_caches upon idling

[Chris Wilson]

Quoting Chris Wilson (2018-01-24 11:03:49)
> When we finally decide the gpu is idle, that is a good time to shrink
> our kmem_caches.
> 
> v3: Defer until an rcu grace period after we idle.
> v4: Think about epoch wraparound and how likely that is.
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com> #v3
-Chris