From f73fbb5a59a7060f81afe4f924a69ab6bff0c46d Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 19 May 2020 07:31:15 +0100
Subject: [PATCH] drm/i915/selftests: Check for an initial-breadcrumb in
 wait_for_submit()

When we look at i915_request_is_started() we must be careful in case we
are using a request that does not have the initial-breadcrumb and
instead the is-started is being compared against the end of the previous
request. This will make wait_for_submit() declare that a request has
been already submitted too early.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200519063123.20673-4-chris@chris-wilson.co.uk
---
 drivers/gpu/drm/i915/gt/selftest_lrc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c
index b71f04db9c6e5..f6949cd55e929 100644
--- a/drivers/gpu/drm/i915/gt/selftest_lrc.c
+++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c
@@ -75,7 +75,7 @@ static bool is_active(struct i915_request *rq)
 	if (i915_request_on_hold(rq))
 		return true;
 
-	if (i915_request_started(rq))
+	if (i915_request_has_initial_breadcrumb(rq) && i915_request_started(rq))
 		return true;
 
 	return false;