[Intel-gfx] [PATCH] drm/i915/selftests: Flush the active barriers before asserting

[Chris Wilson]

Before we peek at the barrier status for an assert, first serialise with
its callbacks so that we see a stable value.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/selftest_context.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/selftest_context.c b/drivers/gpu/drm/i915/gt/selftest_context.c
index 52af1cee9a94..1f4020e906a8 100644
--- a/drivers/gpu/drm/i915/gt/selftest_context.c
+++ b/drivers/gpu/drm/i915/gt/selftest_context.c
@@ -68,6 +68,8 @@ static int context_sync(struct intel_context *ce)
 	} while (!err);
 	mutex_unlock(&tl->mutex);
 
+	/* Wait for all barriers to complete (remote CPU) before we check */
+	i915_active_unlock_wait(&ce->active);
 	return err;
 }
 
-- 
2.20.1