diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index ac22668b239a..2d705e8a297e 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3369,8 +3369,12 @@ i915_gem_execbuffer(struct drm_device *dev, void *data, /* Set the pending read domains for the batch buffer to COMMAND */ batch_obj = object_list[args->buffer_count-1]; - batch_obj->pending_read_domains = I915_GEM_DOMAIN_COMMAND; - batch_obj->pending_write_domain = 0; + if (batch_obj->pending_write_domain) { + DRM_ERROR("Attempting to use self-modifying batch buffer\n"); + ret = -EINVAL; + goto err; + } + batch_obj->pending_read_domains |= I915_GEM_DOMAIN_COMMAND; /* Sanity check the batch buffer, prior to moving objects */ exec_offset = exec_list[args->buffer_count - 1].offset; |