drm/i915/guc: Keep request->priority for its lifetime

We also want to support preemption with GuC submission backend.
In order to do that, we need to remember the priority, like we do on
execlists path.

v2: Remove completed prio == INT_MAX optimization

Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jeff McGee <jeff.mcgee@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171025200020.16636-10-michal.winiarski@intel.com

diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index 301c658a4cdea00dac9c63a39acaddbacdf70166..c99ddd8457f3de2d6d8a13532f685821b7ad0c70 100644 (file)
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -641,7 +641,6 @@ static void i915_guc_dequeue(struct intel_engine_cs *engine)
                        }
 
                        INIT_LIST_HEAD(&rq->priotree.link);
-                       rq->priotree.priority = INT_MAX;
 
                        __i915_gem_request_submit(rq);
                        trace_i915_gem_request_in(rq, port_index(port, execlists));