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drm/i915: Free batch pool when idle 

At runtime, this helps ensure that the batch pools are kept trim and
fast. Then at suspend, this releases memory that we do not need to
restore. It also ties into the oom-notifier to ensure that we recover as
much kernel memory as possible during OOM.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2015-04-07 16:20:37 +01:00 committed by Daniel Vetter
parent 06fbca713e
commit 35c94185c5
1 changed files with 12 additions and 1 deletions
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13
drivers/gpu/drm/i915/i915_gem.c
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@ -2795,8 +2795,19 @@ i915_gem_idle_work_handler(struct work_struct *work)
{ {
struct drm_i915_private *dev_priv = struct drm_i915_private *dev_priv =
container_of(work, typeof(*dev_priv), mm.idle_work.work); container_of(work, typeof(*dev_priv), mm.idle_work.work);
struct drm_device *dev = dev_priv->dev;
intel_mark_idle(dev_priv->dev); intel_mark_idle(dev);
if (mutex_trylock(&dev->struct_mutex)) {
struct intel_engine_cs *ring;
int i;
for_each_ring(ring, dev_priv, i)
i915_gem_batch_pool_fini(&ring->batch_pool);
mutex_unlock(&dev->struct_mutex);
}
} }
/** /**