From fa87271e5bc57ad30c19385e2d0d1d7fbd3c21c1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Winiarski?= <michal.winiarski@intel.com>
Date: Wed, 25 Oct 2017 22:00:17 +0200
Subject: [PATCH] drm/i915/guc: Keep request->priority for its lifetime
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Git-commit: fa87271e5bc57ad30c19385e2d0d1d7fbd3c21c1
Patch-mainline: v4.16-rc1
References: FATE#322643 bsc#1055900

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
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/gpu/drm/i915/i915_guc_submission.c |    1 -
 1 file changed, 1 deletion(-)

--- 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 inte
 			}
 
 			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));