[Intel-gfx] [PATCH 4/4] drm/i915/selftests: Check for an initial-breadcrumb in wait_for_submit()

Chris Wilson chris at chris-wilson.co.uk
Mon May 18 23:14:07 UTC 2020

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 at 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 3cf7c0b13ab4..c3d722840e2d 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;

More information about the Intel-gfx mailing list