diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-01-06 15:22:40 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-01-06 16:54:47 +0000 |
| commit | b42a13d9181e1dee58dcbf2f7c8d5625a49cb6f5 (patch) | |
| tree | 1e67f8905476cbffa62758d2b97a6edcef52bd7b /drivers/gpu | |
| parent | 1a292fa53d06e53000296ba76c6984a43e1e828c (diff) | |
drm/i915: Drain freed objects for mmap space exhaustion
As we now use a deferred free queue for objects, simply retiring the
active objects is not enough to immediately free them and recover their
mmap space - we must now also drain the freed object list.
Fixes: fbbd37b36fa5 ("drm/i915: Move object release to a freelist + worker"
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: <drm-intel-fixes@lists.freedesktop.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170106152240.5793-3-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index a2b8a74168d7..ed3cd1a5f9bb 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2090,23 +2090,21 @@ static int i915_gem_object_create_mmap_offset(struct drm_i915_gem_object *obj) int err; err = drm_gem_create_mmap_offset(&obj->base); - if (!err) + if (likely(!err)) return 0; - /* We can idle the GPU locklessly to flush stale objects, but in order - * to claim that space for ourselves, we need to take the big - * struct_mutex to free the requests+objects and allocate our slot. - */ - err = i915_gem_wait_for_idle(dev_priv, I915_WAIT_INTERRUPTIBLE); - if (err) - return err; + /* Attempt to reap some mmap space from dead objects */ + do { + err = i915_gem_wait_for_idle(dev_priv, I915_WAIT_INTERRUPTIBLE); + if (err) + break; - err = i915_mutex_lock_interruptible(&dev_priv->drm); - if (!err) { - i915_gem_retire_requests(dev_priv); + i915_gem_drain_freed_objects(dev_priv); err = drm_gem_create_mmap_offset(&obj->base); - mutex_unlock(&dev_priv->drm.struct_mutex); - } + if (!err) + break; + + } while (flush_delayed_work(&dev_priv->gt.retire_work)); return err; } |