From ce94bef9354e15b99a329e7c5a451ea0ffd59fb1 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed, 19 Jun 2019 12:23:37 +0100
Subject: drm/i915: Signal fence completion from i915_request_wait
Git-commit: ce94bef9354e15b99a329e7c5a451ea0ffd59fb1
Patch-mainline: v5.4-rc1
References: bsc#1152489

With the upcoming change to automanaged i915_active, the intent is that
whenever we wait on the set of active fences, they are signaled and
collected.  The requirement is that all successful returns from
i915_request_wait() signal the fence, so fixup the one remaining path
where we may return before the interrupt has been run.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190619112341.9082-3-chris@chris-wilson.co.uk
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/gpu/drm/i915/i915_request.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index a195a92d0105..31a631f0b9c3 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -1447,8 +1447,10 @@ long i915_request_wait(struct i915_request *rq,
 	for (;;) {
 		set_current_state(state);
 
-		if (i915_request_completed(rq))
+		if (i915_request_completed(rq)) {
+			dma_fence_signal(&rq->fence);
 			break;
+		}
 
 		if (signal_pending_state(state, current)) {
 			timeout = -ERESTARTSYS;
-- 
2.28.0