[Intel-gfx] [PATCH i-g-t] i915/gem_mocs_settings/mocs-isolation: Filter out missing rings

[Chris Wilson]

Don't try to evaluate whether reads executed on an absent ring do
anything.

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

diff --git a/tests/i915/gem_mocs_settings.c b/tests/i915/gem_mocs_settings.c
index 21f7c6e12..1a311b8c0 100644
--- a/tests/i915/gem_mocs_settings.c
+++ b/tests/i915/gem_mocs_settings.c
@@ -564,8 +564,8 @@ igt_main
 			}
 		}
 
-		igt_subtest_f("mocs-isolation-%s",
-			      e->name) {
+		igt_subtest_f("mocs-isolation-%s", e->name) {
+			gem_require_ring(fd, e->exec_id | e->flags);
 			gem_require_contexts(fd);
 
 			isolation_test(fd, e->exec_id | e->flags);
-- 
2.20.1