[Intel-gfx] [PATCH i-g-t] i915/gem_exec_schedule: Avoid using borked engines

[Chris Wilson]

Check for viability of store-dword before use.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 tests/i915/gem_exec_schedule.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tests/i915/gem_exec_schedule.c b/tests/i915/gem_exec_schedule.c
index 4ccacba41..6e8466299 100644
--- a/tests/i915/gem_exec_schedule.c
+++ b/tests/i915/gem_exec_schedule.c
@@ -282,9 +282,11 @@ static void smoketest(int fd, unsigned ring, unsigned timeout)
 	nengine = 0;
 	if (ring == ALL_ENGINES) {
 		for_each_physical_engine(fd, engine)
-			engines[nengine++] = engine;
+			if (gem_can_store_dword(fd, engine))
+				engines[nengine++] = engine;
 	} else {
-		engines[nengine++] = ring;
+		if (gem_can_store_dword(fd, ring))
+			engines[nengine++] = ring;
 	}
 	igt_require(nengine);
 
-- 
2.22.0