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drm/i915: Immediately discard any backing storage for uneeded objects

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2009-09-20 23:13:10 +01:00
parent 963b483691
commit 2d7ef395b3
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/i915/i915_gem.c
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@ -4110,6 +4110,11 @@ i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
obj_priv->madv = args->madv;
args->retained = obj_priv->gtt_space != NULL;
/* if the object is no longer bound, discard its backing storage */
if (i915_gem_object_is_purgeable(obj_priv) &&
obj_priv->gtt_space == NULL)
i915_gem_object_truncate(obj);
drm_gem_object_unreference(obj);
mutex_unlock(&dev->struct_mutex);