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/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c
index b80802b..35a05f4 100644
--- a/drivers/gpu/drm/i915/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c
@@ -323,7 +323,7 @@
 	unsigned long timeout = jiffies + msecs_to_jiffies_timeout(timeout_ms);
 
 	do {
-		if (i915_gem_wait_for_idle(dev_priv, false) == 0 &&
+		if (i915_gem_wait_for_idle(dev_priv, 0) == 0 &&
 		    i915_gem_shrinker_lock(&dev_priv->drm, &slu->unlock))
 			break;
 
@@ -414,7 +414,7 @@
 		return NOTIFY_DONE;
 
 	/* Force everything onto the inactive lists */
-	ret = i915_gem_wait_for_idle(dev_priv, false);
+	ret = i915_gem_wait_for_idle(dev_priv, 0);
 	if (ret)
 		goto out;