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[intel-gem] Wait for rendering to complete before unbinding.

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Moving to the CPU domain doesn't ensure that rendering is finished, the
buffer may still be in use as a texture or other data source.
This commit is contained in:
Keith Packard 2008-06-13 17:06:35 -07:00
parent 8b9ab108ec
commit 73bc18cad8
1 changed files with 13 additions and 0 deletions
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13
linux-core/i915_gem.c
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@ -688,6 +688,19 @@ i915_gem_object_unbind(struct drm_gem_object *obj)
if (obj_priv->gtt_space == NULL)
return 0;
if (obj_priv->pin_count != 0) {
DRM_ERROR("Attempting to unbind pinned buffer\n");
return -EINVAL;
}
/* Wait for any rendering to complete
*/
ret = i915_gem_object_wait_rendering(obj);
if (ret) {
DRM_ERROR ("wait_rendering failed: %d\n", ret);
return ret;
}
/* Move the object to the CPU domain to ensure that
* any possible CPU writes while it's not in the GTT
* are flushed when we go to remap it. This will