struct drm_i915_private;
struct drm_i915_gem_object;
-void i915_gem_clflush_object(struct drm_i915_gem_object *obj,
+bool i915_gem_clflush_object(struct drm_i915_gem_object *obj,
unsigned int flags);
#define I915_CLFLUSH_FORCE BIT(0)
#define I915_CLFLUSH_SYNC BIT(1)