[Intel-gfx] [PATCH] drm/i915: Recover batch pool caches from shrinker

[Matthew Auld]

On Wed, 19 Sep 2018 at 20:49, Chris Wilson <chris at chris-wilson.co.uk> wrote:
>
> Discard all of our batch pools under mempressure to make their pages
> available to the shrinker. We will quickly reacquire them when necessary
> for more GPU relocations or for the command parser.
>
> v2: Init the lists for mock_engine
> v3: Return a strong ref from i915_gem_batch_pool_get() and convert it
> into an active reference to protect ourselves against all allocations
> while the object is in play.
>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107936
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Matthew Auld <matthew.william.auld at gmail.com>
Reviewed-by: Matthew Auld <matthew.william.auld at gmail.com>