From: Michał Winiarski <michal.winiarski@intel.com>
Date: Wed, 25 Oct 2017 20:00:17 +0000 (+0200)
Subject: drm/i915/guc: Keep request->priority for its lifetime
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=fa87271e5bc57ad30c19385e2d0d1d7fbd3c21c1;p=linux.git

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 301c658a4cdea..c99ddd8457f3d 100644
--- 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));