drm/i915/guc: Correct the request_in tracepoint position

It has to be called after the global seqno has been assigned.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: 31de73501ac9 ("drm/i915/scheduler: emulate a scheduler for guc")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170320132556.29286-1-tvrtko.ursulin@linux.intel.com

drivers/gpu/drm/i915/i915_guc_submission.c

@@ -609,8 +609,8 @@ static bool i915_guc_dequeue(struct intel_engine_cs *engine)
 		RB_CLEAR_NODE(&rq->priotree.node);
 		rq->priotree.priority = INT_MAX;
 
-		trace_i915_gem_request_in(rq, port - engine->execlist_port);
 		i915_guc_submit(rq);
+		trace_i915_gem_request_in(rq, port - engine->execlist_port);
 		last = rq;
 		submit = true;
 	}