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authorVille Syrjälä <ville.syrjala@linux.intel.com>2015-05-28 18:32:36 +0300
committerJani Nikula <jani.nikula@intel.com>2015-06-01 10:55:51 +0300
commit0aedb1626566efd72b369c01992ee7413c82a0c5 (patch)
tree59b8e06c99cf635fc8481a8587011e0116c73eb8
parente058c945e03a629c99606452a6931f632dd28903 (diff)
drm/i915: Don't skip request retirement if the active list is empty
Apparently we can have requests even if though the active list is empty, so do the request retirement regardless of whether there's anything on the active list. The way it happened here is that during suspend intel_ring_idle() notices the olr hanging around and then proceeds to get rid of it by adding a request. However since there was nothing on the active lists i915_gem_retire_requests() didn't clean those up, and so the idle work never runs, and we leave the GPU "busy" during suspend resulting in a WARN later. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@vger.kernel.org Signed-off-by: Jani Nikula <jani.nikula@intel.com>
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 53394f998a1f..851b585987f9 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2656,9 +2656,6 @@ void i915_gem_reset(struct drm_device *dev)
void
i915_gem_retire_requests_ring(struct intel_engine_cs *ring)
{
- if (list_empty(&ring->request_list))
- return;
-
WARN_ON(i915_verify_lists(ring->dev));
/* Retire requests first as we use it above for the early return.