drm/i915: Expand bool interruptible to pass flags to i915_wait_request()

We need finer control over wakeup behaviour during i915_wait_request(),
so expand the current bool interruptible to a bitmask.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160909131201.16673-9-chris@chris-wilson.co.uk
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 2181d0a..18848ac 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -489,11 +489,11 @@
 void intel_engine_cleanup_common(struct intel_engine_cs *engine);
 
 static inline int intel_engine_idle(struct intel_engine_cs *engine,
-				    bool interruptible)
+				    unsigned int flags)
 {
 	/* Wait upon the last request to be completed */
 	return i915_gem_active_wait_unlocked(&engine->last_request,
-					     interruptible, NULL, NULL);
+					     flags, NULL, NULL);
 }
 
 int intel_init_render_ring_buffer(struct intel_engine_cs *engine);