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 <[email protected]> --- drivers/gpu/drm/i915/i915_gem.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 9f33005bdfd1..efb5545251c7 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2849,8 +2849,19 @@ i915_gem_idle_work_handler(struct work_struct *work) { struct drm_i915_private *dev_priv = container_of(work, typeof(*dev_priv), mm.idle_work.work); + struct drm_device *dev = dev_priv->dev; + + intel_mark_idle(dev); - intel_mark_idle(dev_priv->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); + } } /** -- 2.1.4 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
