X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=drivers%2Fgpu%2Fdrm%2Fi915%2Fi915_gem_execbuffer.c;h=c7ee1e3013ac4caf301cb45d86b263f9cc1211f3;hb=ffd93f24800dfbf55e9a245884cbfd8e427fc210;hp=47fe8ecef135faacd0967805e213f23e764e4f1b;hpb=d8ffa60b52ab171e89aebdbdd96dbe2a2460a5dd;p=deliverable%2Flinux.git

diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 47fe8ecef135..c7ee1e3013ac 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1168,6 +1168,11 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 			goto pre_mutex_err;
 		}
 	} else {
+		if (args->DR4 == 0xffffffff) {
+			DRM_DEBUG("UXA submitting garbage DR4, fixing up\n");
+			args->DR4 = 0;
+		}
+
 		if (args->DR1 || args->DR4 || args->cliprects_ptr) {
 			DRM_DEBUG("0 cliprects but dirt in cliprects fields\n");
 			return -EINVAL;